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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2016-01-24 12:50:56 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-01-24 12:50:56 -0800 |
| commit | e2464688b59c6ae9928f385dabf5355e30cff298 (patch) | |
| tree | 1039fa8c818e6ac16d6f1504c28e80bfe902b0f3 /arch/mips | |
| parent | e1c10879ed59436cde537b723545430b04d4dec0 (diff) | |
| parent | 07d17f09691e549fac0101333eebe0161a472b50 (diff) | |
| download | lwn-e2464688b59c6ae9928f385dabf5355e30cff298.tar.gz lwn-e2464688b59c6ae9928f385dabf5355e30cff298.zip | |
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Pull MIPS updates from Ralf Baechle:
"This is the main pull request for MIPS for 4.5 plus some 4.4 fixes.
The executive summary:
- ATH79 platform improvments, use DT bindings for the ATH79 USB PHY.
- Avoid useless rebuilds for zboot.
- jz4780: Add NEMC, BCH and NAND device tree nodes
- Initial support for the MicroChip's DT platform. As all the device
drivers are missing this is still of limited use.
- Some Loongson3 cleanups.
- The unavoidable whitespace polishing.
- Reduce clock skew when synchronizing the CPU cycle counters on CPU
startup.
- Add MIPS R6 fixes.
- Lots of cleanups across arch/mips as fallout from KVM.
- Lots of minor fixes and changes for IEEE 754-2008 support to the
FPU emulator / fp-assist software.
- Minor Ralink, BCM47xx and bcm963xx platform support improvments.
- Support SMP on BCM63168"
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (84 commits)
MIPS: zboot: Add support for serial debug using the PROM
MIPS: zboot: Avoid useless rebuilds
MIPS: BMIPS: Enable ARCH_WANT_OPTIONAL_GPIOLIB
MIPS: bcm63xx: nvram: Remove unused bcm63xx_nvram_get_psi_size() function
MIPS: bcm963xx: Update bcm_tag field image_sequence
MIPS: bcm963xx: Move extended flash address to bcm_tag header file
MIPS: bcm963xx: Move Broadcom BCM963xx image tag data structure
MIPS: bcm63xx: nvram: Use nvram structure definition from header file
MIPS: bcm963xx: Add Broadcom BCM963xx board nvram data structure
MAINTAINERS: Add KVM for MIPS entry
MIPS: KVM: Add missing newline to kvm_err()
MIPS: Move KVM specific opcodes into asm/inst.h
MIPS: KVM: Use cacheops.h definitions
MIPS: Break down cacheops.h definitions
MIPS: Use EXCCODE_ constants with set_except_vector()
MIPS: Update trap codes
MIPS: Move Cause.ExcCode trap codes to mipsregs.h
MIPS: KVM: Make kvm_mips_{init,exit}() static
MIPS: KVM: Refactor added offsetof()s
MIPS: KVM: Convert EXPORT_SYMBOL to _GPL
...
Diffstat (limited to 'arch/mips')
115 files changed, 4144 insertions, 757 deletions
diff --git a/arch/mips/Kbuild.platforms b/arch/mips/Kbuild.platforms index a96c81d1d22e..c5cd63a4b6d5 100644 --- a/arch/mips/Kbuild.platforms +++ b/arch/mips/Kbuild.platforms @@ -21,6 +21,7 @@ platforms += mti-malta platforms += mti-sead3 platforms += netlogic platforms += paravirt +platforms += pic32 platforms += pistachio platforms += pmcs-msp71xx platforms += pnx833x diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index fbf3f6670b69..57a945e832f4 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -169,6 +169,7 @@ config BMIPS_GENERIC select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN + select ARCH_WANT_OPTIONAL_GPIOLIB help Build a generic DT-based kernel image that boots on select BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top @@ -480,6 +481,14 @@ config MIPS_MALTA This enables support for the MIPS Technologies Malta evaluation board. +config MACH_PIC32 + bool "Microchip PIC32 Family" + help + This enables support for the Microchip PIC32 family of platforms. + + Microchip PIC32 is a family of general-purpose 32 bit MIPS core + microcontrollers. + config MIPS_SEAD3 bool "MIPS SEAD3 board" select BOOT_ELF32 @@ -979,6 +988,7 @@ source "arch/mips/jazz/Kconfig" source "arch/mips/jz4740/Kconfig" source "arch/mips/lantiq/Kconfig" source "arch/mips/lasat/Kconfig" +source "arch/mips/pic32/Kconfig" source "arch/mips/pistachio/Kconfig" source "arch/mips/pmcs-msp71xx/Kconfig" source "arch/mips/ralink/Kconfig" @@ -1755,6 +1765,10 @@ config SYS_SUPPORTS_ZBOOT_UART16550 bool select SYS_SUPPORTS_ZBOOT +config SYS_SUPPORTS_ZBOOT_UART_PROM + bool + select SYS_SUPPORTS_ZBOOT + config CPU_LOONGSON2 bool select CPU_SUPPORTS_32BIT_KERNEL @@ -2017,7 +2031,8 @@ config KVM_GUEST bool "KVM Guest Kernel" depends on BROKEN_ON_SMP help - Select this option if building a guest kernel for KVM (Trap & Emulate) mode + Select this option if building a guest kernel for KVM (Trap & Emulate) + mode. config KVM_GUEST_TIMER_FREQ int "Count/Compare Timer Frequency (MHz)" diff --git a/arch/mips/Makefile b/arch/mips/Makefile index 3f70ba54ae21..e78d60dbdffd 100644 --- a/arch/mips/Makefile +++ b/arch/mips/Makefile @@ -166,16 +166,6 @@ cflags-$(CONFIG_CPU_CAVIUM_OCTEON) += -Wa,-march=octeon endif cflags-$(CONFIG_CAVIUM_CN63XXP1) += -Wa,-mfix-cn63xxp1 cflags-$(CONFIG_CPU_BMIPS) += -march=mips32 -Wa,-mips32 -Wa,--trap -# -# binutils from v2.25 on and gcc starting from v4.9.0 treat -march=loongson3a -# as MIPS64 R1; older versions as just R1. This leaves the possibility open -# that GCC might generate R2 code for -march=loongson3a which then is rejected -# by GAS. The cc-option can't probe for this behaviour so -march=loongson3a -# can't easily be used safely within the kbuild framework. -# -cflags-$(CONFIG_CPU_LOONGSON3) += \ - $(call cc-option,-march=mips64r2,-mips64r2 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS64) \ - -Wa,-mips64r2 -Wa,--trap cflags-$(CONFIG_CPU_R4000_WORKAROUNDS) += $(call cc-option,-mfix-r4000,) cflags-$(CONFIG_CPU_R4400_WORKAROUNDS) += $(call cc-option,-mfix-r4400,) diff --git a/arch/mips/alchemy/common/gpiolib.c b/arch/mips/alchemy/common/gpiolib.c index f9bc4f520440..84548f704035 100644 --- a/arch/mips/alchemy/common/gpiolib.c +++ b/arch/mips/alchemy/common/gpiolib.c @@ -40,7 +40,7 @@ static int gpio2_get(struct gpio_chip *chip, unsigned offset) { - return alchemy_gpio2_get_value(offset + ALCHEMY_GPIO2_BASE); + return !!alchemy_gpio2_get_value(offset + ALCHEMY_GPIO2_BASE); } static void gpio2_set(struct gpio_chip *chip, unsigned offset, int value) @@ -68,7 +68,7 @@ static int gpio2_to_irq(struct gpio_chip *chip, unsigned offset) static int gpio1_get(struct gpio_chip *chip, unsigned offset) { - return alchemy_gpio1_get_value(offset + ALCHEMY_GPIO1_BASE); + return !!alchemy_gpio1_get_value(offset + ALCHEMY_GPIO1_BASE); } static void gpio1_set(struct gpio_chip *chip, @@ -119,7 +119,7 @@ struct gpio_chip alchemy_gpio_chip[] = { static int alchemy_gpic_get(struct gpio_chip *chip, unsigned int off) { - return au1300_gpio_get_value(off + AU1300_GPIO_BASE); + return !!au1300_gpio_get_value(off + AU1300_GPIO_BASE); } static void alchemy_gpic_set(struct gpio_chip *chip, unsigned int off, int v) diff --git a/arch/mips/ar7/gpio.c b/arch/mips/ar7/gpio.c index f4930456eb8e..f969f583c68c 100644 --- a/arch/mips/ar7/gpio.c +++ b/arch/mips/ar7/gpio.c @@ -37,7 +37,7 @@ static int ar7_gpio_get_value(struct gpio_chip *chip, unsigned gpio) container_of(chip, struct ar7_gpio_chip, chip); void __iomem *gpio_in = gpch->regs + AR7_GPIO_INPUT; - return readl(gpio_in) & (1 << gpio); + return !!(readl(gpio_in) & (1 << gpio)); } static int titan_gpio_get_value(struct gpio_chip *chip, unsigned gpio) diff --git a/arch/mips/ath79/common.h b/arch/mips/ath79/common.h index ca7cc19adfea..870c6b2e97e8 100644 --- a/arch/mips/ath79/common.h +++ b/arch/mips/ath79/common.h @@ -23,7 +23,6 @@ void ath79_clocks_init(void); unsigned long ath79_get_sys_clk_rate(const char *id); void ath79_ddr_ctrl_init(void); -void ath79_ddr_wb_flush(unsigned int reg); void ath79_gpio_init(void); diff --git a/arch/mips/ath79/irq.c b/arch/mips/ath79/irq.c index eeb3953ed8ac..511c06560dc1 100644 --- a/arch/mips/ath79/irq.c +++ b/arch/mips/ath79/irq.c @@ -26,9 +26,13 @@ #include "common.h" #include "machtypes.h" +static void __init ath79_misc_intc_domain_init( + struct device_node *node, int irq); + static void ath79_misc_irq_handler(struct irq_desc *desc) { - void __iomem *base = ath79_reset_base; + struct irq_domain *domain = irq_desc_get_handler_data(desc); + void __iomem *base = domain->host_data; u32 pending; pending = __raw_readl(base + AR71XX_RESET_REG_MISC_INT_STATUS) & @@ -42,15 +46,15 @@ static void ath79_misc_irq_handler(struct irq_desc *desc) while (pending) { int bit = __ffs(pending); - generic_handle_irq(ATH79_MISC_IRQ(bit)); + generic_handle_irq(irq_linear_revmap(domain, bit)); pending &= ~BIT(bit); } } static void ar71xx_misc_irq_unmask(struct irq_data *d) { - unsigned int irq = d->irq - ATH79_MISC_IRQ_BASE; - void __iomem *base = ath79_reset_base; + void __iomem *base = irq_data_get_irq_chip_data(d); + unsigned int irq = d->hwirq; u32 t; t = __raw_readl(base + AR71XX_RESET_REG_MISC_INT_ENABLE); @@ -62,8 +66,8 @@ static void ar71xx_misc_irq_unmask(struct irq_data *d) static void ar71xx_misc_irq_mask(struct irq_data *d) { - unsigned int irq = d->irq - ATH79_MISC_IRQ_BASE; - void __iomem *base = ath79_reset_base; + void __iomem *base = irq_data_get_irq_chip_data(d); + unsigned int irq = d->hwirq; u32 t; t = __raw_readl(base + AR71XX_RESET_REG_MISC_INT_ENABLE); @@ -75,8 +79,8 @@ static void ar71xx_misc_irq_mask(struct irq_data *d) static void ar724x_misc_irq_ack(struct irq_data *d) { - unsigned int irq = d->irq - ATH79_MISC_IRQ_BASE; - void __iomem *base = ath79_reset_base; + void __iomem *base = irq_data_get_irq_chip_data(d); + unsigned int irq = d->hwirq; u32 t; t = __raw_readl(base + AR71XX_RESET_REG_MISC_INT_STATUS); @@ -94,12 +98,6 @@ static struct irq_chip ath79_misc_irq_chip = { static void __init ath79_misc_irq_init(void) { - void __iomem *base = ath79_reset_base; - int i; - - __raw_writel(0, base + AR71XX_RESET_REG_MISC_INT_ENABLE); - __raw_writel(0, base + AR71XX_RESET_REG_MISC_INT_STATUS); - if (soc_is_ar71xx() || soc_is_ar913x()) ath79_misc_irq_chip.irq_mask_ack = ar71xx_misc_irq_mask; else if (soc_is_ar724x() || @@ -110,13 +108,7 @@ static void __init ath79_misc_irq_init(void) else BUG(); - for (i = ATH79_MISC_IRQ_BASE; - i < ATH79_MISC_IRQ_BASE + ATH79_MISC_IRQ_COUNT; i++) { - irq_set_chip_and_handler(i, &ath79_misc_irq_chip, - handle_level_irq); - } - - irq_set_chained_handler(ATH79_CPU_IRQ(6), ath79_misc_irq_handler); + ath79_misc_intc_domain_init(NULL, ATH79_CPU_IRQ(6)); } static void ar934x_ip2_irq_dispatch(struct irq_desc *desc) @@ -256,10 +248,10 @@ asmlinkage void plat_irq_dispatch(void) } } -#ifdef CONFIG_IRQCHIP static int misc_map(struct irq_domain *d, unsigned int irq, irq_hw_number_t hw) { irq_set_chip_and_handler(irq, &ath79_misc_irq_chip, handle_level_irq); + irq_set_chip_data(irq, d->host_data); return 0; } @@ -268,19 +260,14 @@ static const struct irq_domain_ops misc_irq_domain_ops = { .map = misc_map, }; -static int __init ath79_misc_intc_of_init( - struct device_node *node, struct device_node *parent) +static void __init ath79_misc_intc_domain_init( + struct device_node *node, int irq) { void __iomem *base = ath79_reset_base; struct irq_domain *domain; - int irq; - - irq = irq_of_parse_and_map(node, 0); - if (!irq) - panic("Failed to get MISC IRQ"); domain = irq_domain_add_legacy(node, ATH79_MISC_IRQ_COUNT, - ATH79_MISC_IRQ_BASE, 0, &misc_irq_domain_ops, NULL); + ATH79_MISC_IRQ_BASE, 0, &misc_irq_domain_ops, base); if (!domain) panic("Failed to add MISC irqdomain"); @@ -288,9 +275,19 @@ static int __init ath79_misc_intc_of_init( __raw_writel(0, base + AR71XX_RESET_REG_MISC_INT_ENABLE); __raw_writel(0, base + AR71XX_RESET_REG_MISC_INT_STATUS); + irq_set_chained_handler_and_data(irq, ath79_misc_irq_handler, domain); +} - irq_set_chained_handler(irq, ath79_misc_irq_handler); +static int __init ath79_misc_intc_of_init( + struct device_node *node, struct device_node *parent) +{ + int irq; + irq = irq_of_parse_and_map(node, 0); + if (!irq) + panic("Failed to get MISC IRQ"); + + ath79_misc_intc_domain_init(node, irq); return 0; } @@ -349,8 +346,6 @@ static int __init ar79_cpu_intc_of_init( IRQCHIP_DECLARE(ar79_cpu_intc, "qca,ar7100-cpu-intc", ar79_cpu_intc_of_init); -#endif - void __init arch_init_irq(void) { if (mips_machtype == ATH79_MACH_GENERIC_OF) { diff --git a/arch/mips/ath79/setup.c b/arch/mips/ath79/setup.c index 8755d618e116..be451ee4a5ea 100644 --- a/arch/mips/ath79/setup.c +++ b/arch/mips/ath79/setup.c @@ -36,10 +36,6 @@ #define ATH79_SYS_TYPE_LEN 64 -#define AR71XX_BASE_FREQ 40000000 -#define AR724X_BASE_FREQ 5000000 -#define AR913X_BASE_FREQ 5000000 - static char ath79_sys_type[ATH79_SYS_TYPE_LEN]; static void ath79_restart(char *command) @@ -272,15 +268,10 @@ void __init device_tree_init(void) unflatten_and_copy_device_tree(); } -static void __init ath79_generic_init(void) -{ - /* Nothing to do */ -} - MIPS_MACHINE(ATH79_MACH_GENERIC, "Generic", "Generic AR71XX/AR724X/AR913X based board", - ath79_generic_init); + NULL); MIPS_MACHINE(ATH79_MACH_GENERIC_OF, "DTB", diff --git a/arch/mips/bcm47xx/sprom.c b/arch/mips/bcm47xx/sprom.c index a7e569c7968e..959c145a0a2c 100644 --- a/arch/mips/bcm47xx/sprom.c +++ b/arch/mips/bcm47xx/sprom.c @@ -666,9 +666,15 @@ static int bcm47xx_get_sprom_bcma(struct bcma_bus *bus, struct ssb_sprom *out) switch (bus->hosttype) { case BCMA_HOSTTYPE_PCI: memset(out, 0, sizeof(struct ssb_sprom)); - snprintf(buf, sizeof(buf), "pci/%u/%u/", - bus->host_pci->bus->number + 1, - PCI_SLOT(bus->host_pci->devfn)); + /* On BCM47XX all PCI buses share the same domain */ + if (config_enabled(CONFIG_BCM47XX)) + snprintf(buf, sizeof(buf), "pci/%u/%u/", + bus->host_pci->bus->number + 1, + PCI_SLOT(bus->host_pci->devfn)); + else + snprintf(buf, sizeof(buf), "pci/%u/%u/", + pci_domain_nr(bus->host_pci->bus) + 1, + bus->host_pci->bus->number); bcm47xx_sprom_apply_prefix_alias(buf, sizeof(buf)); prefix = buf; break; diff --git a/arch/mips/bcm63xx/nvram.c b/arch/mips/bcm63xx/nvram.c index 4b50d40f7451..5f2bc1e10eae 100644 --- a/arch/mips/bcm63xx/nvram.c +++ b/arch/mips/bcm63xx/nvram.c @@ -10,6 +10,7 @@ #define pr_fmt(fmt) "bcm63xx_nvram: " fmt +#include <linux/bcm963xx_nvram.h> #include <linux/init.h> #include <linux/crc32.h> #include <linux/export.h> @@ -18,51 +19,19 @@ #include <bcm63xx_nvram.h> -/* - * nvram structure - */ -struct bcm963xx_nvram { - u32 version; - u8 reserved1[256]; - u8 name[16]; - u32 main_tp_number; - u32 psi_size; - u32 mac_addr_count; - u8 mac_addr_base[ETH_ALEN]; - u8 reserved2[2]; - u32 checksum_old; - u8 reserved3[720]; - u32 checksum_high; -}; - -#define BCM63XX_DEFAULT_PSI_SIZE 64 - static struct bcm963xx_nvram nvram; static int mac_addr_used; void __init bcm63xx_nvram_init(void *addr) { - unsigned int check_len; u32 crc, expected_crc; u8 hcs_mac_addr[ETH_ALEN] = { 0x00, 0x10, 0x18, 0xff, 0xff, 0xff }; /* extract nvram data */ - memcpy(&nvram, addr, sizeof(nvram)); + memcpy(&nvram, addr, BCM963XX_NVRAM_V5_SIZE); /* check checksum before using data */ - if (nvram.version <= 4) { - check_len = offsetof(struct bcm963xx_nvram, reserved3); - expected_crc = nvram.checksum_old; - nvram.checksum_old = 0; - } else { - check_len = sizeof(nvram); - expected_crc = nvram.checksum_high; - nvram.checksum_high = 0; - } - - crc = crc32_le(~0, (u8 *)&nvram, check_len); - - if (crc != expected_crc) + if (bcm963xx_nvram_checksum(&nvram, &expected_crc, &crc)) pr_warn("nvram checksum failed, contents may be invalid (expected %08x, got %08x)\n", expected_crc, crc); @@ -116,12 +85,3 @@ int bcm63xx_nvram_get_mac_address(u8 *mac) return 0; } EXPORT_SYMBOL(bcm63xx_nvram_get_mac_address); - -int bcm63xx_nvram_get_psi_size(void) -{ - if (nvram.psi_size > 0) - return nvram.psi_size; - - return BCM63XX_DEFAULT_PSI_SIZE; -} -EXPORT_SYMBOL(bcm63xx_nvram_get_psi_size); diff --git a/arch/mips/bmips/setup.c b/arch/mips/bmips/setup.c index 5b16d2955fbb..35535284b39e 100644 --- a/arch/mips/bmips/setup.c +++ b/arch/mips/bmips/setup.c @@ -105,6 +105,7 @@ static const struct bmips_quirk bmips_quirk_list[] = { { "brcm,bcm33843-viper", &bcm3384_viper_quirks }, { "brcm,bcm6328", &bcm6328_quirks }, { "brcm,bcm6368", &bcm6368_quirks }, + { "brcm,bcm63168", &bcm6368_quirks }, { }, }; diff --git a/arch/mips/boot/compressed/Makefile b/arch/mips/boot/compressed/Makefile index d5bdee115f22..4eff1ef02eff 100644 --- a/arch/mips/boot/compressed/Makefile +++ b/arch/mips/boot/compressed/Makefile @@ -29,20 +29,23 @@ KBUILD_AFLAGS := $(LINUXINCLUDE) $(KBUILD_AFLAGS) -D__ASSEMBLY__ \ -DBOOT_HEAP_SIZE=$(BOOT_HEAP_SIZE) \ -DKERNEL_ENTRY=$(VMLINUX_ENTRY_ADDRESS) -targets := head.o decompress.o string.o dbg.o uart-16550.o uart-alchemy.o - # decompressor objects (linked with vmlinuz) vmlinuzobjs-y := $(obj)/head.o $(obj)/decompress.o $(obj)/string.o ifdef CONFIG_DEBUG_ZBOOT vmlinuzobjs-$(CONFIG_DEBUG_ZBOOT) += $(obj)/dbg.o vmlinuzobjs-$(CONFIG_SYS_SUPPORTS_ZBOOT_UART16550) += $(obj)/uart-16550.o +vmlinuzobjs-$(CONFIG_SYS_SUPPORTS_ZBOOT_UART_PROM) += $(obj)/uart-prom.o vmlinuzobjs-$(CONFIG_MIPS_ALCHEMY) += $(obj)/uart-alchemy.o endif -ifdef CONFIG_KERNEL_XZ -vmlinuzobjs-y += $(obj)/../../lib/ashldi3.o -endif +vmlinuzobjs-$(CONFIG_KERNEL_XZ) += $(obj)/ashldi3.o + +$(obj)/ashldi3.o: KBUILD_CFLAGS += -I$(srctree)/arch/mips/lib +$(obj)/ashldi3.c: $(srctree)/arch/mips/lib/ashldi3.c + $(call cmd,shipped) + +targets := $(notdir $(vmlinuzobjs-y)) targets += vmlinux.bin OBJCOPYFLAGS_vmlinux.bin := $(OBJCOPYFLAGS) -O binary -R .comment -S @@ -60,7 +63,7 @@ targets += vmlinux.bin.z $(obj)/vmlinux.bin.z: $(obj)/vmlinux.bin FORCE $(call if_changed,$(tool_y)) -targets += piggy.o +targets += piggy.o dummy.o OBJCOPYFLAGS_piggy.o := --add-section=.image=$(obj)/vmlinux.bin.z \ --set-section-flags=.image=contents,alloc,load,readonly,data $(obj)/piggy.o: $(obj)/dummy.o $(obj)/vmlinux.bin.z FORCE diff --git a/arch/mips/boot/compressed/uart-prom.c b/arch/mips/boot/compressed/uart-prom.c new file mode 100644 index 000000000000..1c3d51bc90bb --- /dev/null +++ b/arch/mips/boot/compressed/uart-prom.c @@ -0,0 +1,7 @@ + +extern void prom_putchar(unsigned char ch); + +void putc(char c) +{ + prom_putchar(c); +} diff --git a/arch/mips/boot/dts/Makefile b/arch/mips/boot/dts/Makefile index a0bf516ec394..fc7a0a98e9bf 100644 --- a/arch/mips/boot/dts/Makefile +++ b/arch/mips/boot/dts/Makefile @@ -4,6 +4,7 @@ dts-dirs += ingenic dts-dirs += lantiq dts-dirs += mti dts-dirs += netlogic +dts-dirs += pic32 dts-dirs += qca dts-dirs += ralink dts-dirs += xilfpga diff --git a/arch/mips/boot/dts/brcm/bcm6328.dtsi b/arch/mips/boot/dts/brcm/bcm6328.dtsi index d52ce3d07f16..459b9b252c3b 100644 --- a/arch/mips/boot/dts/brcm/bcm6328.dtsi +++ b/arch/mips/boot/dts/brcm/bcm6328.dtsi @@ -31,6 +31,7 @@ }; aliases { + leds0 = &leds0; uart0 = &uart0; }; @@ -81,5 +82,13 @@ offset = <0x28>; mask = <0x1>; }; + + leds0: led-controller@10000800 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "brcm,bcm6328-leds"; + reg = <0x10000800 0x24>; + status = "disabled"; + }; }; }; diff --git a/arch/mips/boot/dts/brcm/bcm6368.dtsi b/arch/mips/boot/dts/brcm/bcm6368.dtsi index 45152bc22117..9c8d3fe28b31 100644 --- a/arch/mips/boot/dts/brcm/bcm6368.dtsi +++ b/arch/mips/boot/dts/brcm/bcm6368.dtsi @@ -32,6 +32,7 @@ }; aliases { + leds0 = &leds0; uart0 = &uart0; }; @@ -50,6 +51,19 @@ compatible = "simple-bus"; ranges; + periph_cntl: syscon@10000000 { + compatible = "syscon"; + reg = <0x10000000 0x14>; + little-endian; + }; + + reboot: syscon-reboot@10000008 { + compatible = "syscon-reboot"; + regmap = <&periph_cntl>; + offset = <0x8>; + mask = <0x1>; + }; + periph_intc: periph_intc@10000020 { compatible = "brcm,bcm3380-l2-intc"; reg = <0x10000024 0x4 0x1000002c 0x4>, @@ -62,6 +76,14 @@ interrupts = <2>; }; + leds0: led-controller@100000d0 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "brcm,bcm6358-leds"; + reg = <0x100000d0 0x8>; + status = "disabled"; + }; + uart0: serial@10000100 { compatible = "brcm,bcm6345-uart"; reg = <0x10000100 0x18>; diff --git a/arch/mips/boot/dts/ingenic/ci20.dts b/arch/mips/boot/dts/ingenic/ci20.dts index 9fcb9e7d1f57..1652d8d60b1e 100644 --- a/arch/mips/boot/dts/ingenic/ci20.dts +++ b/arch/mips/boot/dts/ingenic/ci20.dts @@ -42,3 +42,67 @@ &uart4 { status = "okay"; }; + +&nemc { + status = "okay"; + + nandc: nand-controller@1 { + compatible = "ingenic,jz4780-nand"; + reg = <1 0 0x1000000>; + + #address-cells = <1>; + #size-cells = <0>; + + ingenic,bch-controller = <&bch>; + + ingenic,nemc-tAS = <10>; + ingenic,nemc-tAH = <5>; + ingenic,nemc-tBP = <10>; + ingenic,nemc-tAW = <15>; + ingenic,nemc-tSTRV = <100>; + + nand@1 { + reg = <1>; + + nand-ecc-step-size = <1024>; + nand-ecc-strength = <24>; + nand-ecc-mode = "hw"; + nand-on-flash-bbt; + + partitions { + compatible = "fixed-partitions"; + #address-cells = <2>; + #size-cells = <2>; + + partition@0 { + label = "u-boot-spl"; + reg = <0x0 0x0 0x0 0x800000>; + }; + + partition@0x800000 { + label = "u-boot"; + reg = <0x0 0x800000 0x0 0x200000>; + }; + + partition@0xa00000 { + label = "u-boot-env"; + reg = <0x0 0xa00000 0x0 0x200000>; + }; + + partition@0xc00000 { + label = "boot"; + reg = <0x0 0xc00000 0x0 0x4000000>; + }; + + partition@0x8c00000 { + label = "system"; + reg = <0x0 0x4c00000 0x1 0xfb400000>; + }; + }; + }; + }; +}; + +&bch { + status = "okay"; +}; diff --git a/arch/mips/boot/dts/ingenic/jz4780.dtsi b/arch/mips/boot/dts/ingenic/jz4780.dtsi index 65389f602733..b868b429add2 100644 --- a/arch/mips/boot/dts/ingenic/jz4780.dtsi +++ b/arch/mips/boot/dts/ingenic/jz4780.dtsi @@ -108,4 +108,30 @@ status = "disabled"; }; + + nemc: nemc@13410000 { + compatible = "ingenic,jz4780-nemc"; + reg = <0x13410000 0x10000>; + #address-cells = <2>; + #size-cells = <1>; + ranges = <1 0 0x1b000000 0x1000000 + 2 0 0x1a000000 0x1000000 + 3 0 0x19000000 0x1000000 + 4 0 0x18000000 0x1000000 + 5 0 0x17000000 0x1000000 + 6 0 0x16000000 0x1000000>; + + clocks = <&cgu JZ4780_CLK_NEMC>; + + status = "disabled"; + }; + + bch: bch@134d0000 { + compatible = "ingenic,jz4780-bch"; + reg = <0x134d0000 0x10000>; + + clocks = <&cgu JZ4780_CLK_BCH>; + + status = "disabled"; + }; }; diff --git a/arch/mips/boot/dts/pic32/Makefile b/arch/mips/boot/dts/pic32/Makefile new file mode 100644 index 000000000000..7ac790551ec9 --- /dev/null +++ b/arch/mips/boot/dts/pic32/Makefile @@ -0,0 +1,12 @@ +dtb-$(CONFIG_DTB_PIC32_MZDA_SK) += pic32mzda_sk.dtb + +dtb-$(CONFIG_DTB_PIC32_NONE) += \ + pic32mzda_sk.dtb + +obj-y += $(patsubst %.dtb, %.dtb.o, $(dtb-y)) + +# Force kbuild to make empty built-in.o if necessary +obj- += dummy.o + +always := $(dtb-y) +clean-files := *.dtb *.dtb.S diff --git a/arch/mips/boot/dts/pic32/pic32mzda-clk.dtsi b/arch/mips/boot/dts/pic32/pic32mzda-clk.dtsi new file mode 100644 index 000000000000..ef1335012f43 --- /dev/null +++ b/arch/mips/boot/dts/pic32/pic32mzda-clk.dtsi @@ -0,0 +1,236 @@ +/* + * Device Tree Source for PIC32MZDA clock data + * + * Purna Chandra Mandal <purna.mandal@microchip.com> + * Copyright (C) 2015 Microchip Technology Inc. All rights reserved. + * + * Licensed under GPLv2 or later. + */ + +/* all fixed rate clocks */ + +/ { + POSC:posc_clk { /* On-chip primary oscillator */ + #clock-cells = <0>; + compatible = "fixed-clock"; + clock-frequency = <24000000>; + }; + + FRC:frc_clk { /* internal FRC oscillator */ + #clock-cells = <0>; + compatible = "fixed-clock"; + clock-frequency = <8000000>; + }; + + BFRC:bfrc_clk { /* internal backup FRC oscillator */ + #clock-cells = <0>; + compatible = "fixed-clock"; + clock-frequency = <8000000>; + }; + + LPRC:lprc_clk { /* internal low-power FRC oscillator */ + #clock-cells = <0>; + compatible = "fixed-clock"; + clock-frequency = <32000>; + }; + + /* UPLL provides clock to USBCORE */ + UPLL:usb_phy_clk { + #clock-cells = <0>; + compatible = "fixed-clock"; + clock-frequency = <24000000>; + clock-output-names = "usbphy_clk"; + }; + + TxCKI:txcki_clk { /* external clock input on TxCLKI pin */ + #clock-cells = <0>; + compatible = "fixed-clock"; + clock-frequency = <4000000>; + status = "disabled"; + }; + + /* external clock input on REFCLKIx pin */ + REFIx:refix_clk { + #clock-cells = <0>; + compatible = "fixed-clock"; + clock-frequency = <24000000>; + status = "disabled"; + }; + + /* PIC32 specific clks */ + pic32_clktree { + #address-cells = <1>; + #size-cells = <1>; + reg = <0x1f801200 0x200>; + compatible = "microchip,pic32mzda-clk"; + ranges = <0 0x1f801200 0x200>; + + /* secondary oscillator; external input on SOSCI pin */ + SOSC:sosc_clk@0 { + #clock-cells = <0>; + compatible = "microchip,pic32mzda-sosc"; + clock-frequency = <32768>; + reg = <0x000 0x10>, /* enable reg */ + <0x1d0 0x10>; /* status reg */ + microchip,bit-mask = <0x02>; /* enable mask */ + microchip,status-bit-mask = <0x10>; /* status-mask*/ + }; + + FRCDIV:frcdiv_clk { + #clock-cells = <0>; + compatible = "microchip,pic32mzda-frcdivclk"; + clocks = <&FRC>; + clock-output-names = "frcdiv_clk"; + }; + + /* System PLL clock */ + SYSPLL:spll_clk@020 { + #clock-cells = <0>; + compatible = "microchip,pic32mzda-syspll"; + reg = <0x020 0x10>, /* SPLL register */ + <0x1d0 0x10>; /* CLKSTAT register */ + clocks = <&POSC>, <&FRC>; + clock-output-names = "sys_pll"; + microchip,status-bit-mask = <0x80>; /* SPLLRDY */ + }; + + /* system clock; mux with postdiv & slew */ + SYSCLK:sys_clk@1c0 { + #clock-cells = <0>; + compatible = "microchip,pic32mzda-sysclk-v2"; + reg = <0x1c0 0x04>; /* SLEWCON */ + clocks = <&FRCDIV>, <&SYSPLL>, <&POSC>, <&SOSC>, + <&LPRC>, <&FRCDIV>; + microchip,clock-indices = <0>, <1>, <2>, <4>, + <5>, <7>; + clock-output-names = "sys_clk"; + }; + + /* Peripheral bus1 clock */ + PBCLK1:pb1_clk@140 { + reg = <0x140 0x10>; + #clock-cells = <0>; + compatible = "microchip,pic32mzda-pbclk"; + clocks = <&SYSCLK>; + clock-output-names = "pb1_clk"; + /* used by system modules, not gateable */ + microchip,ignore-unused; + }; + + /* Peripheral bus2 clock */ + PBCLK2:pb2_clk@150 { + reg = <0x150 0x10>; + #clock-cells = <0>; + compatible = "microchip,pic32mzda-pbclk"; + clocks = <&SYSCLK>; + clock-output-names = "pb2_clk"; + /* avoid gating even if unused */ + microchip,ignore-unused; + }; + + /* Peripheral bus3 clock */ + PBCLK3:pb3_clk@160 { + reg = <0x160 0x10>; + #clock-cells = <0>; + compatible = "microchip,pic32mzda-pbclk"; + clocks = <&SYSCLK>; + clock-output-names = "pb3_clk"; + }; + + /* Peripheral bus4 clock(I/O ports, GPIO) */ + PBCLK4:pb4_clk@170 { + reg = <0x170 0x10>; + #clock-cells = <0>; + compatible = "microchip,pic32mzda-pbclk"; + clocks = <&SYSCLK>; + clock-output-names = "pb4_clk"; + }; + + /* Peripheral bus clock */ + PBCLK5:pb5_clk@180 { + reg = <0x180 0x10>; + #clock-cells = <0>; + compatible = "microchip,pic32mzda-pbclk"; + clocks = <&SYSCLK>; + clock-output-names = "pb5_clk"; + }; + + /* Peripheral Bus6 clock; */ + PBCLK6:pb6_clk@190 { + reg = <0x190 0x10>; + compatible = "microchip,pic32mzda-pbclk"; + clocks = <&SYSCLK>; + #clock-cells = <0>; + }; + + /* Peripheral bus7 clock */ + PBCLK7:pb7_clk@1a0 { + reg = <0x1a0 0x10>; + #clock-cells = <0>; + compatible = "microchip,pic32mzda-pbclk"; + /* CPU is driven by this clock; so named */ + clock-output-names = "cpu_clk"; + clocks = <&SYSCLK>; + }; + + /* Reference Oscillator clock for SPI/I2S */ + REFCLKO1:refo1_clk@80 { + reg = <0x080 0x20>; + #clock-cells = <0>; + compatible = "microchip,pic32mzda-refoclk"; + clocks = <&SYSCLK>, <&PBCLK1>, <&POSC>, <&FRC>, <&LPRC>, + <&SOSC>, <&SYSPLL>, <&REFIx>, <&BFRC>; + microchip,clock-indices = <0>, <1>, <2>, <3>, <4>, + <5>, <7>, <8>, <9>; + clock-output-names = "refo1_clk"; + }; + + /* Reference Oscillator clock for SQI */ + REFCLKO2:refo2_clk@a0 { + reg = <0x0a0 0x20>; + #clock-cells = <0>; + compatible = "microchip,pic32mzda-refoclk"; + clocks = <&SYSCLK>, <&PBCLK1>, <&POSC>, <&FRC>, <&LPRC>, + <&SOSC>, <&SYSPLL>, <&REFIx>, <&BFRC>; + microchip,clock-indices = <0>, <1>, <2>, <3>, <4>, + <5>, <7>, <8>, <9>; + clock-output-names = "refo2_clk"; + }; + + /* Reference Oscillator clock, ADC */ + REFCLKO3:refo3_clk@c0 { + reg = <0x0c0 0x20>; + compatible = "microchip,pic32mzda-refoclk"; + clocks = <&SYSCLK>, <&PBCLK1>, <&POSC>, <&FRC>, <&LPRC>, + <&SOSC>, <&SYSPLL>, <&REFIx>, <&BFRC>; + microchip,clock-indices = <0>, <1>, <2>, <3>, <4>, + <5>, <7>, <8>, <9>; + #clock-cells = <0>; + clock-output-names = "refo3_clk"; + }; + + /* Reference Oscillator clock */ + REFCLKO4:refo4_clk@e0 { + reg = <0x0e0 0x20>; + compatible = "microchip,pic32mzda-refoclk"; + clocks = <&SYSCLK>, <&PBCLK1>, <&POSC>, <&FRC>, <&LPRC>, + <&SOSC>, <&SYSPLL>, <&REFIx>, <&BFRC>; + microchip,clock-indices = <0>, <1>, <2>, <3>, <4>, + <5>, <7>, <8>, <9>; + #clock-cells = <0>; + clock-output-names = "refo4_clk"; + }; + + /* Reference Oscillator clock, LCD */ + REFCLKO5:refo5_clk@100 { + reg = <0x100 0x20>; + compatible = "microchip,pic32mzda-refoclk"; + clocks = <&SYSCLK>,<&PBCLK1>,<&POSC>,<&FRC>,<&LPRC>, + <&SOSC>,<&SYSPLL>,<&REFIx>,<&BFRC>; + microchip,clock-indices = <0>, <1>, <2>, <3>, <4>, + <5>, <7>, <8>, <9>; + #clock-cells = <0>; + clock-output-names = "refo5_clk"; + }; + }; +}; diff --git a/arch/mips/boot/dts/pic32/pic32mzda.dtsi b/arch/mips/boot/dts/pic32/pic32mzda.dtsi new file mode 100644 index 000000000000..ad9e3318c2ce --- /dev/null +++ b/arch/mips/boot/dts/pic32/pic32mzda.dtsi @@ -0,0 +1,281 @@ +/* + * Copyright (C) 2015 Microchip Technology Inc. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ + +#include <dt-bindings/interrupt-controller/irq.h> + +#include "pic32mzda-clk.dtsi" + +/ { + #address-cells = <1>; + #size-cells = <1>; + interrupt-parent = <&evic>; + + aliases { + gpio0 = &gpio0; + gpio1 = &gpio1; + gpio2 = &gpio2; + gpio3 = &gpio3; + gpio4 = &gpio4; + gpio5 = &gpio5; + gpio6 = &gpio6; + gpio7 = &gpio7; + gpio8 = &gpio8; + gpio9 = &gpio9; + serial0 = &uart1; + serial1 = &uart2; + serial2 = &uart3; + serial3 = &uart4; + serial4 = &uart5; + serial5 = &uart6; + }; + + cpus { + #address-cells = <1>; + #size-cells = <0>; + + cpu@0 { + compatible = "mti,mips14KEc"; + device_type = "cpu"; + }; + }; + + soc { + compatible = "microchip,pic32mzda-infra"; + interrupts = <0 IRQ_TYPE_EDGE_RISING>; + }; + + evic: interrupt-controller@1f810000 { + compatible = "microchip,pic32mzda-evic"; + interrupt-controller; + #interrupt-cells = <2>; + reg = <0x1f810000 0x1000>; + microchip,external-irqs = <3 8 13 18 23>; + }; + + pic32_pinctrl: pinctrl@1f801400{ + #address-cells = <1>; + #size-cells = <1>; + compatible = "microchip,pic32mzda-pinctrl"; + reg = <0x1f801400 0x400>; + clocks = <&PBCLK1>; + }; + + /* PORTA */ + gpio0: gpio0@1f860000 { + compatible = "microchip,pic32mzda-gpio"; + reg = <0x1f860000 0x100>; + interrupts = <118 IRQ_TYPE_LEVEL_HIGH>; + #gpio-cells = <2>; + gpio-controller; + interrupt-controller; + #interrupt-cells = <2>; + clocks = <&PBCLK4>; + microchip,gpio-bank = <0>; + gpio-ranges = <&pic32_pinctrl 0 0 16>; + }; + + /* PORTB */ + gpio1: gpio1@1f860100 { + compatible = "microchip,pic32mzda-gpio"; + reg = <0x1f860100 0x100>; + interrupts = <119 IRQ_TYPE_LEVEL_HIGH>; + #gpio-cells = <2>; + gpio-controller; + interrupt-controller; + #interrupt-cells = <2>; + clocks = <&PBCLK4>; + microchip,gpio-bank = <1>; + gpio-ranges = <&pic32_pinctrl 0 16 16>; + }; + + /* PORTC */ + gpio2: gpio2@1f860200 { + compatible = "microchip,pic32mzda-gpio"; + reg = <0x1f860200 0x100>; + interrupts = <120 IRQ_TYPE_LEVEL_HIGH>; + #gpio-cells = <2>; + gpio-controller; + interrupt-controller; + #interrupt-cells = <2>; + clocks = <&PBCLK4>; + microchip,gpio-bank = <2>; + gpio-ranges = <&pic32_pinctrl 0 32 16>; + }; + + /* PORTD */ + gpio3: gpio3@1f860300 { + compatible = "microchip,pic32mzda-gpio"; + reg = <0x1f860300 0x100>; + interrupts = <121 IRQ_TYPE_LEVEL_HIGH>; + #gpio-cells = <2>; + gpio-controller; + interrupt-controller; + #interrupt-cells = <2>; + clocks = <&PBCLK4>; + microchip,gpio-bank = <3>; + gpio-ranges = <&pic32_pinctrl 0 48 16>; + }; + + /* PORTE */ + gpio4: gpio4@1f860400 { + compatible = "microchip,pic32mzda-gpio"; + reg = <0x1f860400 0x100>; + interrupts = <122 IRQ_TYPE_LEVEL_HIGH>; + #gpio-cells = <2>; + gpio-controller; + interrupt-controller; + #interrupt-cells = <2>; + clocks = <&PBCLK4>; + microchip,gpio-bank = <4>; + gpio-ranges = <&pic32_pinctrl 0 64 16>; + }; + + /* PORTF */ + gpio5: gpio5@1f860500 { + compatible = "microchip,pic32mzda-gpio"; + reg = <0x1f860500 0x100>; + interrupts = <123 IRQ_TYPE_LEVEL_HIGH>; + #gpio-cells = <2>; + gpio-controller; + interrupt-controller; + #interrupt-cells = <2>; + clocks = <&PBCLK4>; + microchip,gpio-bank = <5>; + gpio-ranges = <&pic32_pinctrl 0 80 16>; + }; + + /* PORTG */ + gpio6: gpio6@1f860600 { + compatible = "microchip,pic32mzda-gpio"; + reg = <0x1f860600 0x100>; + interrupts = <124 IRQ_TYPE_LEVEL_HIGH>; + #gpio-cells = <2>; + gpio-controller; + interrupt-controller; + #interrupt-cells = <2>; + clocks = <&PBCLK4>; + microchip,gpio-bank = <6>; + gpio-ranges = <&pic32_pinctrl 0 96 16>; + }; + + /* PORTH */ + gpio7: gpio7@1f860700 { + compatible = "microchip,pic32mzda-gpio"; + reg = <0x1f860700 0x100>; + interrupts = <125 IRQ_TYPE_LEVEL_HIGH>; + #gpio-cells = <2>; + gpio-controller; + interrupt-controller; + #interrupt-cells = <2>; + clocks = <&PBCLK4>; + microchip,gpio-bank = <7>; + gpio-ranges = <&pic32_pinctrl 0 112 16>; + }; + + /* PORTI does not exist */ + + /* PORTJ */ + gpio8: gpio8@1f860800 { + compatible = "microchip,pic32mzda-gpio"; + reg = <0x1f860800 0x100>; + interrupts = <126 IRQ_TYPE_LEVEL_HIGH>; + #gpio-cells = <2>; + gpio-controller; + interrupt-controller; + #interrupt-cells = <2>; + clocks = <&PBCLK4>; + microchip,gpio-bank = <8>; + gpio-ranges = <&pic32_pinctrl 0 128 16>; + }; + + /* PORTK */ + gpio9: gpio9@1f860900 { + compatible = "microchip,pic32mzda-gpio"; + reg = <0x1f860900 0x100>; + interrupts = <127 IRQ_TYPE_LEVEL_HIGH>; + #gpio-cells = <2>; + gpio-controller; + interrupt-controller; + #interrupt-cells = <2>; + clocks = <&PBCLK4>; + microchip,gpio-bank = <9>; + gpio-ranges = <&pic32_pinctrl 0 144 16>; + }; + + sdhci: sdhci@1f8ec000 { + compatible = "microchip,pic32mzda-sdhci"; + reg = <0x1f8ec000 0x100>; + interrupts = <191 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&REFCLKO4>, <&PBCLK5>; + clock-names = "base_clk", "sys_clk"; + bus-width = <4>; + cap-sd-highspeed; + status = "disabled"; + }; + + uart1: serial@1f822000 { + compatible = "microchip,pic32mzda-uart"; + reg = <0x1f822000 0x50>; + interrupts = <112 IRQ_TYPE_LEVEL_HIGH>, + <113 IRQ_TYPE_LEVEL_HIGH>, + <114 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&PBCLK2>; + status = "disabled"; + }; + + uart2: serial@1f822200 { + compatible = "microchip,pic32mzda-uart"; + reg = <0x1f822200 0x50>; + interrupts = <145 IRQ_TYPE_LEVEL_HIGH>, + <146 IRQ_TYPE_LEVEL_HIGH>, + <147 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&PBCLK2>; + status = "disabled"; + }; + + uart3: serial@1f822400 { + compatible = "microchip,pic32mzda-uart"; + reg = <0x1f822400 0x50>; + interrupts = <157 IRQ_TYPE_LEVEL_HIGH>, + <158 IRQ_TYPE_LEVEL_HIGH>, + <159 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&PBCLK2>; + status = "disabled"; + }; + + uart4: serial@1f822600 { + compatible = "microchip,pic32mzda-uart"; + reg = <0x1f822600 0x50>; + interrupts = <170 IRQ_TYPE_LEVEL_HIGH>, + <171 IRQ_TYPE_LEVEL_HIGH>, + <172 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&PBCLK2>; + status = "disabled"; + }; + + uart5: serial@1f822800 { + compatible = "microchip,pic32mzda-uart"; + reg = <0x1f822800 0x50>; + interrupts = <179 IRQ_TYPE_LEVEL_HIGH>, + <180 IRQ_TYPE_LEVEL_HIGH>, + <181 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&PBCLK2>; + status = "disabled"; + }; + + uart6: serial@1f822A00 { + compatible = "microchip,pic32mzda-uart"; + reg = <0x1f822A00 0x50>; + interrupts = <188 IRQ_TYPE_LEVEL_HIGH>, + <189 IRQ_TYPE_LEVEL_HIGH>, + <190 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&PBCLK2>; + status = "disabled"; + }; +}; diff --git a/arch/mips/boot/dts/pic32/pic32mzda_sk.dts b/arch/mips/boot/dts/pic32/pic32mzda_sk.dts new file mode 100644 index 000000000000..5d434a50e85b --- /dev/null +++ b/arch/mips/boot/dts/pic32/pic32mzda_sk.dts @@ -0,0 +1,151 @@ +/* + * Copyright (C) 2015 Microchip Technology Inc. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ + +/dts-v1/; + +#include <dt-bindings/gpio/gpio.h> +#include <dt-bindings/interrupt-controller/irq.h> + +#include "pic32mzda.dtsi" + +/ { + compatible = "microchip,pic32mzda-sk", "microchip,pic32mzda"; + model = "Microchip PIC32MZDA Starter Kit"; + + memory { + device_type = "memory"; + reg = <0x08000000 0x08000000>; + }; + + chosen { + bootargs = "earlyprintk=ttyPIC1,115200n8r console=ttyPIC1,115200n8"; + }; + + leds0 { + compatible = "gpio-leds"; + pinctrl-names = "default"; + pinctrl-0 = <&user_leds_s0>; + + led@1 { + label = "pic32mzda_sk:red:led1"; + gpios = <&gpio7 0 GPIO_ACTIVE_HIGH>; + linux,default-trigger = "heartbeat"; + }; + + led@2 { + label = "pic32mzda_sk:yellow:led2"; + gpios = <&gpio7 1 GPIO_ACTIVE_HIGH>; + linux,default-trigger = "mmc0"; + }; + + led@3 { + label = "pic32mzda_sk:green:led3"; + gpios = <&gpio7 2 GPIO_ACTIVE_HIGH>; + default-state = "on"; + }; + }; + + keys0 { + compatible = "gpio-keys"; + pinctrl-0 = <&user_buttons_s0>; + pinctrl-names = "default"; + + #address-cells = <1>; + #size-cells = <0>; + + button@sw1 { + label = "ESC"; + linux,code = <1>; + gpios = <&gpio1 12 0>; + }; + + button@sw2 { + label = "Home"; + linux,code = <102>; + gpios = <&gpio1 13 0>; + }; + + button@sw3 { + label = "Menu"; + linux,code = <139>; + gpios = <&gpio1 14 0>; + }; + }; +}; + +&uart2 { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_uart2>; + status = "okay"; +}; + +&uart4 { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_uart4>; + status = "okay"; +}; + +&sdhci { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_sdhc1>; + status = "okay"; + assigned-clocks = <&REFCLKO2>,<&REFCLKO4>,<&REFCLKO5>; + assigned-clock-rates = <50000000>,<25000000>,<40000000>; +}; + +&pic32_pinctrl { + + pinctrl_sdhc1: sdhc1_pins0 { + pins = "A6", "D4", "G13", "G12", "G14", "A7", "A0"; + microchip,digital; + }; + + user_leds_s0: user_leds_s0 { + pins = "H0", "H1", "H2"; + output-low; + microchip,digital; + }; + + user_buttons_s0: user_buttons_s0 { + pins = "B12", "B13", "B14"; + microchip,digital; + input-enable; + bias-pull-up; + }; + + pinctrl_uart2: pinctrl_uart2 { + uart2-tx { + pins = "G9"; + function = "U2TX"; + microchip,digital; + output-high; + }; + uart2-rx { + pins = "B0"; + function = "U2RX"; + microchip,digital; + input-enable; + }; + }; + + pinctrl_uart4: uart4-0 { + uart4-tx { + pins = "C3"; + function = "U4TX"; + microchip,digital; + output-high; + }; + uart4-rx { + pins = "E8"; + function = "U4RX"; + microchip,digital; + input-enable; + }; + }; +}; diff --git a/arch/mips/boot/dts/qca/ar9132.dtsi b/arch/mips/boot/dts/qca/ar9132.dtsi index 13d0439496a9..3ad4ba9b12fd 100644 --- a/arch/mips/boot/dts/qca/ar9132.dtsi +++ b/arch/mips/boot/dts/qca/ar9132.dtsi @@ -125,6 +125,21 @@ }; }; + usb@1b000100 { + compatible = "qca,ar7100-ehci", "generic-ehci"; + reg = <0x1b000100 0x100>; + + interrupts = <3>; + resets = <&rst 5>; + + has-transaction-translator; + + phy-names = "usb"; + phys = <&usb_phy>; + + status = "disabled"; + }; + spi@1f000000 { compatible = "qca,ar9132-spi", "qca,ar7100-spi"; reg = <0x1f000000 0x10>; @@ -138,4 +153,15 @@ #size-cells = <0>; }; }; + + usb_phy: usb-phy { + compatible = "qca,ar7100-usb-phy"; + + reset-names = "usb-phy", "usb-suspend-override"; + resets = <&rst 4>, <&rst 3>; + + #phy-cells = <0>; + + status = "disabled"; + }; }; diff --git a/arch/mips/boot/dts/qca/ar9132_tl_wr1043nd_v1.dts b/arch/mips/boot/dts/qca/ar9132_tl_wr1043nd_v1.dts index 003015ab34e7..e535ee3c26a4 100644 --- a/arch/mips/boot/dts/qca/ar9132_tl_wr1043nd_v1.dts +++ b/arch/mips/boot/dts/qca/ar9132_tl_wr1043nd_v1.dts @@ -35,6 +35,10 @@ }; }; + usb@1b000100 { + status = "okay"; + }; + spi@1f000000 { status = "okay"; num-cs = <1>; @@ -65,6 +69,10 @@ }; }; + usb-phy { + status = "okay"; + }; + gpio-keys { compatible = "gpio-keys-polled"; #address-cells = <1>; diff --git a/arch/mips/configs/pic32mzda_defconfig b/arch/mips/configs/pic32mzda_defconfig new file mode 100644 index 000000000000..52192c632ae8 --- /dev/null +++ b/arch/mips/configs/pic32mzda_defconfig @@ -0,0 +1,89 @@ +CONFIG_MACH_PIC32=y +CONFIG_DTB_PIC32_MZDA_SK=y +CONFIG_HZ_100=y +CONFIG_PREEMPT_VOLUNTARY=y +# CONFIG_SECCOMP is not set +CONFIG_SYSVIPC=y +CONFIG_NO_HZ=y +CONFIG_HIGH_RES_TIMERS=y +CONFIG_IKCONFIG=y +CONFIG_IKCONFIG_PROC=y +CONFIG_LOG_BUF_SHIFT=14 +CONFIG_RELAY=y +CONFIG_CC_OPTIMIZE_FOR_SIZE=y +CONFIG_EMBEDDED=y +# CONFIG_COMPAT_BRK is not set +CONFIG_SLAB=y +CONFIG_JUMP_LABEL=y +CONFIG_MODULES=y +CONFIG_MODULE_UNLOAD=y +CONFIG_MODVERSIONS=y +CONFIG_MODULE_SRCVERSION_ALL=y +CONFIG_BLK_DEV_BSGLIB=y +CONFIG_PARTITION_ADVANCED=y +CONFIG_SGI_PARTITION=y +CONFIG_BINFMT_MISC=m +# CONFIG_SUSPEND is not set +CONFIG_DEVTMPFS=y +CONFIG_DEVTMPFS_MOUNT=y +# CONFIG_FIRMWARE_IN_KERNEL is not set +# CONFIG_ALLOW_DEV_COREDUMP is not set +CONFIG_BLK_DEV_LOOP=m +CONFIG_SCSI=y +CONFIG_BLK_DEV_SD=y +CONFIG_SCSI_CONSTANTS=y +CONFIG_SCSI_SCAN_ASYNC=y +# CONFIG_SCSI_LOWLEVEL is not set +CONFIG_INPUT_LEDS=m +CONFIG_INPUT_POLLDEV=y +CONFIG_INPUT_MOUSEDEV=m +CONFIG_INPUT_EVDEV=y +CONFIG_INPUT_EVBUG=m +# CONFIG_KEYBOARD_ATKBD is not set +CONFIG_KEYBOARD_GPIO=m +CONFIG_KEYBOARD_GPIO_POLLED=m +# CONFIG_MOUSE_PS2 is not set +# CONFIG_SERIO is not set +CONFIG_SERIAL_PIC32=y +CONFIG_SERIAL_PIC32_CONSOLE=y +CONFIG_HW_RANDOM=y +CONFIG_RAW_DRIVER=m +CONFIG_GPIO_SYSFS=y +# CONFIG_HWMON is not set +CONFIG_HIDRAW=y +# CONFIG_USB_SUPPORT is not set +CONFIG_MMC=y +CONFIG_MMC_SDHCI=y +CONFIG_MMC_SDHCI_PLTFM=y +CONFIG_MMC_SDHCI_MICROCHIP_PIC32=y +CONFIG_NEW_LEDS=y +CONFIG_LEDS_CLASS=y +CONFIG_LEDS_GPIO=y +CONFIG_LEDS_TRIGGERS=y +CONFIG_LEDS_TRIGGER_TIMER=m +CONFIG_LEDS_TRIGGER_ONESHOT=m +CONFIG_LEDS_TRIGGER_HEARTBEAT=y +CONFIG_LEDS_TRIGGER_GPIO=m +CONFIG_LEDS_TRIGGER_DEFAULT_ON=y +# CONFIG_MIPS_PLATFORM_DEVICES is not set +# CONFIG_IOMMU_SUPPORT is not set +CONFIG_EXT4_FS=y +CONFIG_EXT4_FS_POSIX_ACL=y +CONFIG_EXT4_FS_SECURITY=y +CONFIG_AUTOFS4_FS=m +CONFIG_FUSE_FS=m +CONFIG_FSCACHE=m +CONFIG_ISO9660_FS=m +CONFIG_JOLIET=y +CONFIG_ZISOFS=y +CONFIG_UDF_FS=m +CONFIG_MSDOS_FS=m +CONFIG_VFAT_FS=m +CONFIG_PROC_KCORE=y +CONFIG_TMPFS=y +CONFIG_TMPFS_POSIX_ACL=y +CONFIG_SQUASHFS=m +CONFIG_SQUASHFS_XATTR=y +CONFIG_SQUASHFS_LZ4=y +CONFIG_SQUASHFS_LZO=y +CONFIG_SQUASHFS_XZ=y diff --git a/arch/mips/include/asm/cacheops.h b/arch/mips/include/asm/cacheops.h index 06b9bc7ea14b..c3212ff26723 100644 --- a/arch/mips/include/asm/cacheops.h +++ b/arch/mips/include/asm/cacheops.h @@ -12,54 +12,76 @@ #define __ASM_CACHEOPS_H /* + * Most cache ops are split into a 2 bit field identifying the cache, and a 3 + * bit field identifying the cache operation. + */ +#define CacheOp_Cache 0x03 +#define CacheOp_Op 0x1c + +#define Cache_I 0x00 +#define Cache_D 0x01 +#define Cache_T 0x02 +#define Cache_S 0x03 + +#define Index_Writeback_Inv 0x00 +#define Index_Load_Tag 0x04 +#define Index_Store_Tag 0x08 +#define Hit_Invalidate 0x10 +#define Hit_Writeback_Inv 0x14 /* not with Cache_I though */ +#define Hit_Writeback 0x18 + +/* * Cache Operations available on all MIPS processors with R4000-style caches */ -#define Index_Invalidate_I 0x00 -#define Index_Writeback_Inv_D 0x01 -#define Index_Load_Tag_I 0x04 -#define Index_Load_Tag_D 0x05 -#define Index_Store_Tag_I 0x08 -#define Index_Store_Tag_D 0x09 -#define Hit_Invalidate_I 0x10 -#define Hit_Invalidate_D 0x11 -#define Hit_Writeback_Inv_D 0x15 +#define Index_Invalidate_I (Cache_I | Index_Writeback_Inv) +#define Index_Writeback_Inv_D (Cache_D | Index_Writeback_Inv) +#define Index_Load_Tag_I (Cache_I | Index_Load_Tag) +#define Index_Load_Tag_D (Cache_D | Index_Load_Tag) +#define Index_Store_Tag_I (Cache_I | Index_Store_Tag) +#define Index_Store_Tag_D (Cache_D | Index_Store_Tag) +#define Hit_Invalidate_I (Cache_I | Hit_Invalidate) +#define Hit_Invalidate_D (Cache_D | Hit_Invalidate) +#define Hit_Writeback_Inv_D (Cache_D | Hit_Writeback_Inv) /* * R4000-specific cacheops */ -#define Create_Dirty_Excl_D 0x0d -#define Fill 0x14 -#define Hit_Writeback_I 0x18 -#define Hit_Writeback_D 0x19 +#define Create_Dirty_Excl_D (Cache_D | 0x0c) +#define Fill (Cache_I | 0x14) +#define Hit_Writeback_I (Cache_I | Hit_Writeback) +#define Hit_Writeback_D (Cache_D | Hit_Writeback) /* * R4000SC and R4400SC-specific cacheops */ -#define Index_Invalidate_SI 0x02 -#define Index_Writeback_Inv_SD 0x03 -#define Index_Load_Tag_SI 0x06 -#define Index_Load_Tag_SD 0x07 -#define Index_Store_Tag_SI 0x0A -#define Index_Store_Tag_SD 0x0B -#define Create_Dirty_Excl_SD 0x0f -#define Hit_Invalidate_SI 0x12 -#define Hit_Invalidate_SD 0x13 -#define Hit_Writeback_Inv_SD 0x17 -#define Hit_Writeback_SD 0x1b -#define Hit_Set_Virtual_SI 0x1e -#define Hit_Set_Virtual_SD 0x1f +#define Cache_SI 0x02 +#define Cache_SD 0x03 + +#define Index_Invalidate_SI (Cache_SI | Index_Writeback_Inv) +#define Index_Writeback_Inv_SD (Cache_SD | Index_Writeback_Inv) +#define Index_Load_Tag_SI (Cache_SI | Index_Load_Tag) +#define Index_Load_Tag_SD (Cache_SD | Index_Load_Tag) +#define Index_Store_Tag_SI (Cache_SI | Index_Store_Tag) +#define Index_Store_Tag_SD (Cache_SD | Index_Store_Tag) +#define Create_Dirty_Excl_SD (Cache_SD | 0x0c) +#define Hit_Invalidate_SI (Cache_SI | Hit_Invalidate) +#define Hit_Invalidate_SD (Cache_SD | Hit_Invalidate) +#define Hit_Writeback_Inv_SD (Cache_SD | Hit_Writeback_Inv) +#define Hit_Writeback_SD (Cache_SD | Hit_Writeback) +#define Hit_Set_Virtual_SI (Cache_SI | 0x1c) +#define Hit_Set_Virtual_SD (Cache_SD | 0x1c) /* * R5000-specific cacheops */ -#define R5K_Page_Invalidate_S 0x17 +#define R5K_Page_Invalidate_S (Cache_S | 0x14) /* * RM7000-specific cacheops */ -#define Page_Invalidate_T 0x16 -#define Index_Store_Tag_T 0x0a -#define Index_Load_Tag_T 0x06 +#define Page_Invalidate_T (Cache_T | 0x14) +#define Index_Store_Tag_T (Cache_T | Index_Store_Tag) +#define Index_Load_Tag_T (Cache_T | Index_Load_Tag) /* * R10000-specific cacheops @@ -67,22 +89,22 @@ * Cacheops 0x02, 0x06, 0x0a, 0x0c-0x0e, 0x16, 0x1a and 0x1e are unused. * Most of the _S cacheops are identical to the R4000SC _SD cacheops. */ -#define Index_Writeback_Inv_S 0x03 -#define Index_Load_Tag_S 0x07 -#define Index_Store_Tag_S 0x0B -#define Hit_Invalidate_S 0x13 +#define Index_Writeback_Inv_S (Cache_S | Index_Writeback_Inv) +#define Index_Load_Tag_S (Cache_S | Index_Load_Tag) +#define Index_Store_Tag_S (Cache_S | Index_Store_Tag) +#define Hit_Invalidate_S (Cache_S | Hit_Invalidate) #define Cache_Barrier 0x14 -#define Hit_Writeback_Inv_S 0x17 -#define Index_Load_Data_I 0x18 -#define Index_Load_Data_D 0x19 -#define Index_Load_Data_S 0x1b -#define Index_Store_Data_I 0x1c -#define Index_Store_Data_D 0x1d -#define Index_Store_Data_S 0x1f +#define Hit_Writeback_Inv_S (Cache_S | Hit_Writeback_Inv) +#define Index_Load_Data_I (Cache_I | 0x18) +#define Index_Load_Data_D (Cache_D | 0x18) +#define Index_Load_Data_S (Cache_S | 0x18) +#define Index_Store_Data_I (Cache_I | 0x1c) +#define Index_Store_Data_D (Cache_D | 0x1c) +#define Index_Store_Data_S (Cache_S | 0x1c) /* * Loongson2-specific cacheops */ -#define Hit_Invalidate_I_Loongson2 0x00 +#define Hit_Invalidate_I_Loongson2 (Cache_I | 0x00) #endif /* __ASM_CACHEOPS_H */ diff --git a/arch/mips/include/asm/cpu-features.h b/arch/mips/include/asm/cpu-features.h index d1e04c943f5f..eeec8c8e2da2 100644 --- a/arch/mips/include/asm/cpu-features.h +++ b/arch/mips/include/asm/cpu-features.h @@ -414,4 +414,11 @@ # define cpu_has_small_pages (cpu_data[0].options & MIPS_CPU_SP) #endif +#ifndef cpu_has_nan_legacy +#define cpu_has_nan_legacy (cpu_data[0].options & MIPS_CPU_NAN_LEGACY) +#endif +#ifndef cpu_has_nan_2008 +#define cpu_has_nan_2008 (cpu_data[0].options & MIPS_CPU_NAN_2008) +#endif + #endif /* __ASM_CPU_FEATURES_H */ diff --git a/arch/mips/include/asm/cpu.h b/arch/mips/include/asm/cpu.h index 82ad15f11049..a97ca97285ec 100644 --- a/arch/mips/include/asm/cpu.h +++ b/arch/mips/include/asm/cpu.h @@ -386,6 +386,8 @@ enum cpu_type_enum { #define MIPS_CPU_BP_GHIST 0x8000000000ull /* R12K+ Branch Prediction Global History */ #define MIPS_CPU_SP 0x10000000000ull /* Small (1KB) page support */ #define MIPS_CPU_FTLB 0x20000000000ull /* CPU has Fixed-page-size TLB */ +#define MIPS_CPU_NAN_LEGACY 0x40000000000ull /* Legacy NaN implemented */ +#define MIPS_CPU_NAN_2008 0x80000000000ull /* 2008 NaN implemented */ /* * CPU ASE encodings diff --git a/arch/mips/include/asm/elf.h b/arch/mips/include/asm/elf.h index b01a6ff468e0..cefb7a596878 100644 --- a/arch/mips/include/asm/elf.h +++ b/arch/mips/include/asm/elf.h @@ -12,7 +12,6 @@ #include <linux/fs.h> #include <uapi/linux/elf.h> -#include <asm/cpu-info.h> #include <asm/current.h> /* ELF header e_flags defines. */ @@ -44,6 +43,7 @@ #define EF_MIPS_OPTIONS_FIRST 0x00000080 #define EF_MIPS_32BITMODE 0x00000100 #define EF_MIPS_FP64 0x00000200 +#define EF_MIPS_NAN2008 0x00000400 #define EF_MIPS_ABI 0x0000f000 #define EF_MIPS_ARCH 0xf0000000 @@ -305,7 +305,7 @@ do { \ \ current->thread.abi = &mips_abi; \ \ - current->thread.fpu.fcr31 = boot_cpu_data.fpu_csr31; \ + mips_set_personality_nan(state); \ } while (0) #endif /* CONFIG_32BIT */ @@ -367,7 +367,7 @@ do { \ else \ current->thread.abi = &mips_abi; \ \ - current->thread.fpu.fcr31 = boot_cpu_data.fpu_csr31; \ + mips_set_personality_nan(state); \ \ p = personality(current->personality); \ if (p != PER_LINUX32 && p != PER_LINUX) \ @@ -432,6 +432,7 @@ extern int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp); struct arch_elf_state { + int nan_2008; int fp_abi; int interp_fp_abi; int overall_fp_mode; @@ -440,17 +441,23 @@ struct arch_elf_state { #define MIPS_ABI_FP_UNKNOWN (-1) /* Unknown FP ABI (kernel internal) */ #define INIT_ARCH_ELF_STATE { \ + .nan_2008 = -1, \ .fp_abi = MIPS_ABI_FP_UNKNOWN, \ .interp_fp_abi = MIPS_ABI_FP_UNKNOWN, \ .overall_fp_mode = -1, \ } +/* Whether to accept legacy-NaN and 2008-NaN user binaries. */ +extern bool mips_use_nan_legacy; +extern bool mips_use_nan_2008; + extern int arch_elf_pt_proc(void *ehdr, void *phdr, struct file *elf, bool is_interp, struct arch_elf_state *state); -extern int arch_check_elf(void *ehdr, bool has_interpreter, +extern int arch_check_elf(void *ehdr, bool has_interpreter, void *interp_ehdr, struct arch_elf_state *state); +extern void mips_set_personality_nan(struct arch_elf_state *state); extern void mips_set_personality_fp(struct arch_elf_state *state); #endif /* _ASM_ELF_H */ diff --git a/arch/mips/include/asm/fpu_emulator.h b/arch/mips/include/asm/fpu_emulator.h index 2f021cdfba4f..3225c3c0724b 100644 --- a/arch/mips/include/asm/fpu_emulator.h +++ b/arch/mips/include/asm/fpu_emulator.h @@ -79,7 +79,7 @@ int mm_isBranchInstr(struct pt_regs *regs, struct mm_decoded_insn dec_insn, /* * Break instruction with special math emu break code set */ -#define BREAK_MATH (0x0000000d | (BRK_MEMU << 16)) +#define BREAK_MATH(micromips) (((micromips) ? 0x7 : 0xd) | (BRK_MEMU << 16)) #define SIGNALLING_NAN 0x7ff800007ff80000LL diff --git a/arch/mips/include/asm/io.h b/arch/mips/include/asm/io.h index d10fd80dbb7e..2b4dc7ad53b8 100644 --- a/arch/mips/include/asm/io.h +++ b/arch/mips/include/asm/io.h @@ -275,6 +275,7 @@ static inline void __iomem * __ioremap_mode(phys_addr_t offset, unsigned long si */ #define ioremap_cachable(offset, size) \ __ioremap_mode((offset), (size), _page_cachable_default) +#define ioremap_cache ioremap_cachable /* * These two are MIPS specific ioremap variant. ioremap_cacheable_cow diff --git a/arch/mips/include/asm/irqflags.h b/arch/mips/include/asm/irqflags.h index e7b138b4b3d3..65c351e328cc 100644 --- a/arch/mips/include/asm/irqflags.h +++ b/arch/mips/include/asm/irqflags.h @@ -84,41 +84,11 @@ static inline void arch_local_irq_restore(unsigned long flags) : "memory"); } -static inline void __arch_local_irq_restore(unsigned long flags) -{ - __asm__ __volatile__( - " .set push \n" - " .set noreorder \n" - " .set noat \n" -#if defined(CONFIG_IRQ_MIPS_CPU) - /* - * Slow, but doesn't suffer from a relatively unlikely race - * condition we're having since days 1. - */ - " beqz %[flags], 1f \n" - " di \n" - " ei \n" - "1: \n" -#else - /* - * Fast, dangerous. Life is fun, life is good. - */ - " mfc0 $1, $12 \n" - " ins $1, %[flags], 0, 1 \n" - " mtc0 $1, $12 \n" -#endif - " " __stringify(__irq_disable_hazard) " \n" - " .set pop \n" - : [flags] "=r" (flags) - : "0" (flags) - : "memory"); -} #else /* Functions that require preempt_{dis,en}able() are in mips-atomic.c */ void arch_local_irq_disable(void); unsigned long arch_local_irq_save(void); void arch_local_irq_restore(unsigned long flags); -void __arch_local_irq_restore(unsigned long flags); #endif /* CONFIG_CPU_MIPSR2 || CONFIG_CPU_MIPSR6 */ static inline void arch_local_irq_enable(void) diff --git a/arch/mips/include/asm/kvm_host.h b/arch/mips/include/asm/kvm_host.h index 7c191443c7ea..f6b12790716c 100644 --- a/arch/mips/include/asm/kvm_host.h +++ b/arch/mips/include/asm/kvm_host.h @@ -58,7 +58,7 @@ #define KVM_MAX_VCPUS 1 #define KVM_USER_MEM_SLOTS 8 /* memory slots that does not exposed to userspace */ -#define KVM_PRIVATE_MEM_SLOTS 0 +#define KVM_PRIVATE_MEM_SLOTS 0 #define KVM_COALESCED_MMIO_PAGE_OFFSET 1 #define KVM_HALT_POLL_NS_DEFAULT 500000 @@ -92,14 +92,6 @@ #define KVM_INVALID_INST 0xdeadbeef #define KVM_INVALID_ADDR 0xdeadbeef -#define KVM_MALTA_GUEST_RTC_ADDR 0xb8000070UL - -#define GUEST_TICKS_PER_JIFFY (40000000/HZ) -#define MS_TO_NS(x) (x * 1E6L) - -#define CAUSEB_DC 27 -#define CAUSEF_DC (_ULCAST_(1) << 27) - extern atomic_t kvm_mips_instance; extern kvm_pfn_t (*kvm_mips_gfn_to_pfn)(struct kvm *kvm, gfn_t gfn); extern void (*kvm_mips_release_pfn_clean)(kvm_pfn_t pfn); @@ -289,34 +281,6 @@ enum mips_mmu_types { MMU_TYPE_R8000 }; -/* - * Trap codes - */ -#define T_INT 0 /* Interrupt pending */ -#define T_TLB_MOD 1 /* TLB modified fault */ -#define T_TLB_LD_MISS 2 /* TLB miss on load or ifetch */ -#define T_TLB_ST_MISS 3 /* TLB miss on a store */ -#define T_ADDR_ERR_LD 4 /* Address error on a load or ifetch */ -#define T_ADDR_ERR_ST 5 /* Address error on a store */ -#define T_BUS_ERR_IFETCH 6 /* Bus error on an ifetch */ -#define T_BUS_ERR_LD_ST 7 /* Bus error on a load or store */ -#define T_SYSCALL 8 /* System call */ -#define T_BREAK 9 /* Breakpoint */ -#define T_RES_INST 10 /* Reserved instruction exception */ -#define T_COP_UNUSABLE 11 /* Coprocessor unusable */ -#define T_OVFLOW 12 /* Arithmetic overflow */ - -/* - * Trap definitions added for r4000 port. - */ -#define T_TRAP 13 /* Trap instruction */ -#define T_VCEI 14 /* Virtual coherency exception */ -#define T_MSAFPE 14 /* MSA floating point exception */ -#define T_FPE 15 /* Floating point exception */ -#define T_MSADIS 21 /* MSA disabled exception */ -#define T_WATCH 23 /* Watch address reference */ -#define T_VCED 31 /* Virtual coherency data */ - /* Resume Flags */ #define RESUME_FLAG_DR (1<<0) /* Reload guest nonvolatile state? */ #define RESUME_FLAG_HOST (1<<1) /* Resume host? */ @@ -686,7 +650,6 @@ extern void kvm_mips_dump_host_tlbs(void); extern void kvm_mips_dump_guest_tlbs(struct kvm_vcpu *vcpu); extern void kvm_mips_flush_host_tlb(int skip_kseg0); extern int kvm_mips_host_tlb_inv(struct kvm_vcpu *vcpu, unsigned long entryhi); -extern int kvm_mips_host_tlb_inv_index(struct kvm_vcpu *vcpu, int index); extern int kvm_mips_guest_tlb_lookup(struct kvm_vcpu *vcpu, unsigned long entryhi); diff --git a/arch/mips/include/asm/mach-ath79/ath79.h b/arch/mips/include/asm/mach-ath79/ath79.h index 4eee221b0cf0..2b3487213d1e 100644 --- a/arch/mips/include/asm/mach-ath79/ath79.h +++ b/arch/mips/include/asm/mach-ath79/ath79.h @@ -115,6 +115,7 @@ static inline int soc_is_qca955x(void) return soc_is_qca9556() || soc_is_qca9558(); } +void ath79_ddr_wb_flush(unsigned int reg); void ath79_ddr_set_pci_windows(void); extern void __iomem *ath79_pll_base; diff --git a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_nvram.h b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_nvram.h index 348df49dcc9f..4e0b6bc1165e 100644 --- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_nvram.h +++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_nvram.h @@ -30,6 +30,4 @@ u8 *bcm63xx_nvram_get_name(void); */ int bcm63xx_nvram_get_mac_address(u8 *mac); -int bcm63xx_nvram_get_psi_size(void); - #endif /* BCM63XX_NVRAM_H */ diff --git a/arch/mips/include/asm/mach-bcm63xx/bcm963xx_tag.h b/arch/mips/include/asm/mach-bcm63xx/bcm963xx_tag.h deleted file mode 100644 index 1e6b587f62c9..000000000000 --- a/arch/mips/include/asm/mach-bcm63xx/bcm963xx_tag.h +++ /dev/null @@ -1,96 +0,0 @@ -#ifndef __BCM963XX_TAG_H -#define __BCM963XX_TAG_H - -#define TAGVER_LEN 4 /* Length of Tag Version */ -#define TAGLAYOUT_LEN 4 /* Length of FlashLayoutVer */ -#define SIG1_LEN 20 /* Company Signature 1 Length */ -#define SIG2_LEN 14 /* Company Signature 2 Length */ -#define BOARDID_LEN 16 /* Length of BoardId */ -#define ENDIANFLAG_LEN 2 /* Endian Flag Length */ -#define CHIPID_LEN 6 /* Chip Id Length */ -#define IMAGE_LEN 10 /* Length of Length Field */ -#define ADDRESS_LEN 12 /* Length of Address field */ -#define DUALFLAG_LEN 2 /* Dual Image flag Length */ -#define INACTIVEFLAG_LEN 2 /* Inactie Flag Length */ -#define RSASIG_LEN 20 /* Length of RSA Signature in tag */ -#define TAGINFO1_LEN 30 /* Length of vendor information field1 in tag */ -#define FLASHLAYOUTVER_LEN 4 /* Length of Flash Layout Version String tag */ -#define TAGINFO2_LEN 16 /* Length of vendor information field2 in tag */ -#define ALTTAGINFO_LEN 54 /* Alternate length for vendor information; Pirelli */ - -#define NUM_PIRELLI 2 -#define IMAGETAG_CRC_START 0xFFFFFFFF - -#define PIRELLI_BOARDS { \ - "AGPF-S0", \ - "DWV-S0", \ -} - -/* - * The broadcom firmware assumes the rootfs starts the image, - * therefore uses the rootfs start (flash_image_address) - * to determine where to flash the image. Since we have the kernel first - * we have to give it the kernel address, but the crc uses the length - * associated with this address (root_length), which is added to the kernel - * length (kernel_length) to determine the length of image to flash and thus - * needs to be rootfs + deadcode (jffs2 EOF marker) -*/ - -struct bcm_tag { - /* 0-3: Version of the image tag */ - char tag_version[TAGVER_LEN]; - /* 4-23: Company Line 1 */ - char sig_1[SIG1_LEN]; - /* 24-37: Company Line 2 */ - char sig_2[SIG2_LEN]; - /* 38-43: Chip this image is for */ - char chip_id[CHIPID_LEN]; - /* 44-59: Board name */ - char board_id[BOARDID_LEN]; - /* 60-61: Map endianness -- 1 BE 0 LE */ - char big_endian[ENDIANFLAG_LEN]; - /* 62-71: Total length of image */ - char total_length[IMAGE_LEN]; - /* 72-83: Address in memory of CFE */ - char cfe__address[ADDRESS_LEN]; - /* 84-93: Size of CFE */ - char cfe_length[IMAGE_LEN]; - /* 94-105: Address in memory of image start - * (kernel for OpenWRT, rootfs for stock firmware) - */ - char flash_image_start[ADDRESS_LEN]; - /* 106-115: Size of rootfs */ - char root_length[IMAGE_LEN]; - /* 116-127: Address in memory of kernel */ - char kernel_address[ADDRESS_LEN]; - /* 128-137: Size of kernel */ - char kernel_length[IMAGE_LEN]; - /* 138-139: Unused at the moment */ - char dual_image[DUALFLAG_LEN]; - /* 140-141: Unused at the moment */ - char inactive_flag[INACTIVEFLAG_LEN]; - /* 142-161: RSA Signature (not used; some vendors may use this) */ - char rsa_signature[RSASIG_LEN]; - /* 162-191: Compilation and related information (not used in OpenWrt) */ - char information1[TAGINFO1_LEN]; - /* 192-195: Version flash layout */ - char flash_layout_ver[FLASHLAYOUTVER_LEN]; - /* 196-199: kernel+rootfs CRC32 */ - __u32 fskernel_crc; - /* 200-215: Unused except on Alice Gate where is is information */ - char information2[TAGINFO2_LEN]; - /* 216-219: CRC32 of image less imagetag (kernel for Alice Gate) */ - __u32 image_crc; - /* 220-223: CRC32 of rootfs partition */ - __u32 rootfs_crc; - /* 224-227: CRC32 of kernel partition */ - __u32 kernel_crc; - /* 228-235: Unused at present */ - char reserved1[8]; - /* 236-239: CRC32 of header excluding last 20 bytes */ - __u32 header_crc; - /* 240-255: Unused at present */ - char reserved2[16]; -}; - -#endif /* __BCM63XX_TAG_H */ diff --git a/arch/mips/include/asm/mach-pic32/cpu-feature-overrides.h b/arch/mips/include/asm/mach-pic32/cpu-feature-overrides.h new file mode 100644 index 000000000000..468230834e2f --- /dev/null +++ b/arch/mips/include/asm/mach-pic32/cpu-feature-overrides.h @@ -0,0 +1,32 @@ +/* + * Joshua Henderson <joshua.henderson@microchip.com> + * Copyright (C) 2015 Microchip Technology Inc. All rights reserved. + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + */ +#ifndef __ASM_MACH_PIC32_CPU_FEATURE_OVERRIDES_H +#define __ASM_MACH_PIC32_CPU_FEATURE_OVERRIDES_H + +/* + * CPU feature overrides for PIC32 boards + */ +#ifdef CONFIG_CPU_MIPS32 +#define cpu_has_vint 1 +#define cpu_has_veic 0 +#define cpu_has_tlb 1 +#define cpu_has_4kex 1 +#define cpu_has_4k_cache 1 +#define cpu_has_fpu 0 +#define cpu_has_counter 1 +#define cpu_has_llsc 1 +#define cpu_has_nofpuex 0 +#define cpu_icache_snoops_remote_store 1 +#endif + +#ifdef CONFIG_CPU_MIPS64 +#error This platform does not support 64bit. +#endif + +#endif /* __ASM_MACH_PIC32_CPU_FEATURE_OVERRIDES_H */ diff --git a/arch/mips/include/asm/mach-pic32/irq.h b/arch/mips/include/asm/mach-pic32/irq.h new file mode 100644 index 000000000000..864330ce8838 --- /dev/null +++ b/arch/mips/include/asm/mach-pic32/irq.h @@ -0,0 +1,22 @@ +/* + * Joshua Henderson <joshua.henderson@microchip.com> + * Copyright (C) 2015 Microchip Technology Inc. All rights reserved. + * + * This program is free software; you can distribute it and/or modify it + * under the terms of the GNU General Public License (Version 2) as + * published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ +#ifndef __ASM_MACH_PIC32_IRQ_H +#define __ASM_MACH_PIC32_IRQ_H + +#define NR_IRQS 256 +#define MIPS_CPU_IRQ_BASE 0 + +#include_next <irq.h> + +#endif /* __ASM_MACH_PIC32_IRQ_H */ diff --git a/arch/mips/include/asm/mach-pic32/pic32.h b/arch/mips/include/asm/mach-pic32/pic32.h new file mode 100644 index 000000000000..ce52e918daae --- /dev/null +++ b/arch/mips/include/asm/mach-pic32/pic32.h @@ -0,0 +1,44 @@ +/* + * Joshua Henderson <joshua.henderson@microchip.com> + * Copyright (C) 2015 Microchip Technology Inc. All rights reserved. + * + * This program is free software; you can distribute it and/or modify it + * under the terms of the GNU General Public License (Version 2) as + * published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ +#ifndef _ASM_MACH_PIC32_H +#define _ASM_MACH_PIC32_H + +#include <linux/io.h> + +/* + * PIC32 register offsets for SET/CLR/INV where supported. + */ +#define PIC32_CLR(_reg) ((_reg) + 0x04) +#define PIC32_SET(_reg) ((_reg) + 0x08) +#define PIC32_INV(_reg) ((_reg) + 0x0C) + +/* + * PIC32 Base Register Offsets + */ +#define PIC32_BASE_CONFIG 0x1f800000 +#define PIC32_BASE_OSC 0x1f801200 +#define PIC32_BASE_RESET 0x1f801240 +#define PIC32_BASE_PPS 0x1f801400 +#define PIC32_BASE_UART 0x1f822000 +#define PIC32_BASE_PORT 0x1f860000 +#define PIC32_BASE_DEVCFG2 0x1fc4ff44 + +/* + * Register unlock sequence required for some register access. + */ +void pic32_syskey_unlock_debug(const char *fn, const ulong ln); +#define pic32_syskey_unlock() \ + pic32_syskey_unlock_debug(__func__, __LINE__) + +#endif /* _ASM_MACH_PIC32_H */ diff --git a/arch/mips/include/asm/mach-pic32/spaces.h b/arch/mips/include/asm/mach-pic32/spaces.h new file mode 100644 index 000000000000..046a0a9aa8b3 --- /dev/null +++ b/arch/mips/include/asm/mach-pic32/spaces.h @@ -0,0 +1,24 @@ +/* + * Joshua Henderson <joshua.henderson@microchip.com> + * Copyright (C) 2015 Microchip Technology Inc. All rights reserved. + * + * This program is free software; you can distribute it and/or modify it + * under the terms of the GNU General Public License (Version 2) as + * published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ +#ifndef _ASM_MACH_PIC32_SPACES_H +#define _ASM_MACH_PIC32_SPACES_H + +#ifdef CONFIG_PIC32MZDA +#define PHYS_OFFSET _AC(0x08000000, UL) +#define UNCAC_BASE _AC(0xa8000000, UL) +#endif + +#include <asm/mach-generic/spaces.h> + +#endif /* __ASM_MACH_PIC32_SPACES_H */ diff --git a/arch/mips/include/asm/mach-ralink/irq.h b/arch/mips/include/asm/mach-ralink/irq.h new file mode 100644 index 000000000000..4321865e04b9 --- /dev/null +++ b/arch/mips/include/asm/mach-ralink/irq.h @@ -0,0 +1,9 @@ +#ifndef __ASM_MACH_RALINK_IRQ_H +#define __ASM_MACH_RALINK_IRQ_H + +#define GIC_NUM_INTRS 64 +#define NR_IRQS 256 + +#include_next <irq.h> + +#endif diff --git a/arch/mips/include/asm/mach-ralink/mt7621.h b/arch/mips/include/asm/mach-ralink/mt7621.h new file mode 100644 index 000000000000..610b61e3f9df --- /dev/null +++ b/arch/mips/include/asm/mach-ralink/mt7621.h @@ -0,0 +1,38 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + * Copyright (C) 2015 John Crispin <blogic@openwrt.org> + */ + +#ifndef _MT7621_REGS_H_ +#define _MT7621_REGS_H_ + +#define MT7621_PALMBUS_BASE 0x1C000000 +#define MT7621_PALMBUS_SIZE 0x03FFFFFF + +#define MT7621_SYSC_BASE 0x1E000000 + +#define SYSC_REG_CHIP_NAME0 0x00 +#define SYSC_REG_CHIP_NAME1 0x04 +#define SYSC_REG_CHIP_REV 0x0c +#define SYSC_REG_SYSTEM_CONFIG0 0x10 +#define SYSC_REG_SYSTEM_CONFIG1 0x14 + +#define CHIP_REV_PKG_MASK 0x1 +#define CHIP_REV_PKG_SHIFT 16 +#define CHIP_REV_VER_MASK 0xf +#define CHIP_REV_VER_SHIFT 8 +#define CHIP_REV_ECO_MASK 0xf + +#define MT7621_DRAM_BASE 0x0 +#define MT7621_DDR2_SIZE_MIN 32 +#define MT7621_DDR2_SIZE_MAX 256 + +#define MT7621_CHIP_NAME0 0x3637544D +#define MT7621_CHIP_NAME1 0x20203132 + +#define MIPS_GIC_IRQ_BASE (MIPS_CPU_IRQ_BASE + 8) + +#endif diff --git a/arch/mips/include/asm/mach-ralink/mt7621/cpu-feature-overrides.h b/arch/mips/include/asm/mach-ralink/mt7621/cpu-feature-overrides.h new file mode 100644 index 000000000000..15db1b330fe8 --- /dev/null +++ b/arch/mips/include/asm/mach-ralink/mt7621/cpu-feature-overrides.h @@ -0,0 +1,65 @@ +/* + * Ralink MT7621 specific CPU feature overrides + * + * Copyright (C) 2008-2009 Gabor Juhos <juhosg@openwrt.org> + * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org> + * Copyright (C) 2015 Felix Fietkau <nbd@openwrt.org> + * + * This file was derived from: include/asm-mips/cpu-features.h + * Copyright (C) 2003, 2004 Ralf Baechle + * Copyright (C) 2004 Maciej W. Rozycki + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + */ +#ifndef _MT7621_CPU_FEATURE_OVERRIDES_H +#define _MT7621_CPU_FEATURE_OVERRIDES_H + +#define cpu_has_tlb 1 +#define cpu_has_4kex 1 +#define cpu_has_3k_cache 0 +#define cpu_has_4k_cache 1 +#define cpu_has_tx39_cache 0 +#define cpu_has_sb1_cache 0 +#define cpu_has_fpu 0 +#define cpu_has_32fpr 0 +#define cpu_has_counter 1 +#define cpu_has_watch 1 +#define cpu_has_divec 1 + +#define cpu_has_prefetch 1 +#define cpu_has_ejtag 1 +#define cpu_has_llsc 1 + +#define cpu_has_mips16 1 +#define cpu_has_mdmx 0 +#define cpu_has_mips3d 0 +#define cpu_has_smartmips 0 + +#define cpu_has_mips32r1 1 +#define cpu_has_mips32r2 1 +#define cpu_has_mips64r1 0 +#define cpu_has_mips64r2 0 + +#define cpu_has_dsp 1 +#define cpu_has_dsp2 0 +#define cpu_has_mipsmt 1 + +#define cpu_has_64bits 0 +#define cpu_has_64bit_zero_reg 0 +#define cpu_has_64bit_gp_regs 0 +#define cpu_has_64bit_addresses 0 + +#define cpu_dcache_line_size() 32 +#define cpu_icache_line_size() 32 + +#define cpu_has_dc_aliases 0 +#define cpu_has_vtag_icache 0 + +#define cpu_has_rixi 0 +#define cpu_has_tlbinv 0 +#define cpu_has_userlocal 1 + +#endif /* _MT7621_CPU_FEATURE_OVERRIDES_H */ diff --git a/arch/mips/include/asm/mips-cm.h b/arch/mips/include/asm/mips-cm.h index 6516e9da5133..b196825a1de9 100644 --- a/arch/mips/include/asm/mips-cm.h +++ b/arch/mips/include/asm/mips-cm.h @@ -243,6 +243,10 @@ BUILD_CM_Cx_R_(tcid_8_priority, 0x80) #define CM_GCR_BASE_CMDEFTGT_IOCU0 2 #define CM_GCR_BASE_CMDEFTGT_IOCU1 3 +/* GCR_RESET_EXT_BASE register fields */ +#define CM_GCR_RESET_EXT_BASE_EVARESET BIT(31) +#define CM_GCR_RESET_EXT_BASE_UEB BIT(30) + /* GCR_ACCESS register fields */ #define CM_GCR_ACCESS_ACCESSEN_SHF 0 #define CM_GCR_ACCESS_ACCESSEN_MSK (_ULCAST_(0xff) << 0) diff --git a/arch/mips/include/asm/mips-r2-to-r6-emul.h b/arch/mips/include/asm/mips-r2-to-r6-emul.h index 4b89f28047f7..1f6ea8352ca9 100644 --- a/arch/mips/include/asm/mips-r2-to-r6-emul.h +++ b/arch/mips/include/asm/mips-r2-to-r6-emul.h @@ -52,7 +52,7 @@ do { \ __this_cpu_inc(mipsr2emustats.M); \ err = __get_user(nir, (u32 __user *)regs->cp0_epc); \ if (!err) { \ - if (nir == BREAK_MATH) \ + if (nir == BREAK_MATH(0)) \ __this_cpu_inc(mipsr2bdemustats.M); \ } \ preempt_enable(); \ diff --git a/arch/mips/include/asm/mipsregs.h b/arch/mips/include/asm/mipsregs.h index e43aca183c99..3ad19ad04d8a 100644 --- a/arch/mips/include/asm/mipsregs.h +++ b/arch/mips/include/asm/mipsregs.h @@ -394,6 +394,8 @@ #define CAUSEF_IV (_ULCAST_(1) << 23) #define CAUSEB_PCI 26 #define CAUSEF_PCI (_ULCAST_(1) << 26) +#define CAUSEB_DC 27 +#define CAUSEF_DC (_ULCAST_(1) << 27) #define CAUSEB_CE 28 #define CAUSEF_CE (_ULCAST_(3) << 28) #define CAUSEB_TI 30 @@ -402,6 +404,38 @@ #define CAUSEF_BD (_ULCAST_(1) << 31) /* + * Cause.ExcCode trap codes. + */ +#define EXCCODE_INT 0 /* Interrupt pending */ +#define EXCCODE_MOD 1 /* TLB modified fault */ +#define EXCCODE_TLBL 2 /* TLB miss on load or ifetch */ +#define EXCCODE_TLBS 3 /* TLB miss on a store */ +#define EXCCODE_ADEL 4 /* Address error on a load or ifetch */ +#define EXCCODE_ADES 5 /* Address error on a store */ +#define EXCCODE_IBE 6 /* Bus error on an ifetch */ +#define EXCCODE_DBE 7 /* Bus error on a load or store */ +#define EXCCODE_SYS 8 /* System call */ +#define EXCCODE_BP 9 /* Breakpoint */ +#define EXCCODE_RI 10 /* Reserved instruction exception */ +#define EXCCODE_CPU 11 /* Coprocessor unusable */ +#define EXCCODE_OV 12 /* Arithmetic overflow */ +#define EXCCODE_TR 13 /* Trap instruction */ +#define EXCCODE_MSAFPE 14 /* MSA floating point exception */ +#define EXCCODE_FPE 15 /* Floating point exception */ +#define EXCCODE_TLBRI 19 /* TLB Read-Inhibit exception */ +#define EXCCODE_TLBXI 20 /* TLB Execution-Inhibit exception */ +#define EXCCODE_MSADIS 21 /* MSA disabled exception */ +#define EXCCODE_MDMX 22 /* MDMX unusable exception */ +#define EXCCODE_WATCH 23 /* Watch address reference */ +#define EXCCODE_MCHECK 24 /* Machine check */ +#define EXCCODE_THREAD 25 /* Thread exceptions (MT) */ +#define EXCCODE_DSPDIS 26 /* DSP disabled exception */ +#define EXCCODE_GE 27 /* Virtualized guest exception (VZ) */ + +/* Implementation specific trap codes used by MIPS cores */ +#define MIPS_EXCCODE_TLBPAR 16 /* TLB parity error exception */ + +/* * Bits in the coprocessor 0 config register. */ /* Generic bits. */ diff --git a/arch/mips/include/asm/page.h b/arch/mips/include/asm/page.h index 2046c0230224..21ed7150fec3 100644 --- a/arch/mips/include/asm/page.h +++ b/arch/mips/include/asm/page.h @@ -33,7 +33,7 @@ #define PAGE_SHIFT 16 #endif #define PAGE_SIZE (_AC(1,UL) << PAGE_SHIFT) -#define PAGE_MASK (~(PAGE_SIZE - 1)) +#define PAGE_MASK (~((1 << PAGE_SHIFT) - 1)) /* * This is used for calculating the real page sizes diff --git a/arch/mips/include/asm/pgtable.h b/arch/mips/include/asm/pgtable.h index 6995b4a02e23..9a4fe0133ff1 100644 --- a/arch/mips/include/asm/pgtable.h +++ b/arch/mips/include/asm/pgtable.h @@ -353,7 +353,7 @@ static inline pte_t pte_mkdirty(pte_t pte) static inline pte_t pte_mkyoung(pte_t pte) { pte_val(pte) |= _PAGE_ACCESSED; -#ifdef CONFIG_CPU_MIPSR2 +#if defined(CONFIG_CPU_MIPSR2) || defined(CONFIG_CPU_MIPSR6) if (!(pte_val(pte) & _PAGE_NO_READ)) pte_val(pte) |= _PAGE_SILENT_READ; else @@ -542,7 +542,7 @@ static inline pmd_t pmd_mkyoung(pmd_t pmd) { pmd_val(pmd) |= _PAGE_ACCESSED; -#ifdef CONFIG_CPU_MIPSR2 +#if defined(CONFIG_CPU_MIPSR2) || defined(CONFIG_CPU_MIPSR6) if (!(pmd_val(pmd) & _PAGE_NO_READ)) pmd_val(pmd) |= _PAGE_SILENT_READ; else diff --git a/arch/mips/include/uapi/asm/inst.h b/arch/mips/include/uapi/asm/inst.h index 9b44d5a816fa..ddea53e3a9bb 100644 --- a/arch/mips/include/uapi/asm/inst.h +++ b/arch/mips/include/uapi/asm/inst.h @@ -116,7 +116,8 @@ enum cop_op { dmtc_op = 0x05, ctc_op = 0x06, mthc0_op = 0x06, mthc_op = 0x07, bc_op = 0x08, bc1eqz_op = 0x09, - bc1nez_op = 0x0d, cop_op = 0x10, + mfmc0_op = 0x0b, bc1nez_op = 0x0d, + wrpgpr_op = 0x0e, cop_op = 0x10, copm_op = 0x18 }; @@ -529,7 +530,7 @@ enum MIPS6e_i8_func { }; /* - * (microMIPS & MIPS16e) NOP instruction. + * (microMIPS) NOP instruction. */ #define MM_NOP16 0x0c00 @@ -679,7 +680,7 @@ struct fp0_format { /* FPU multiply and add format (MIPS32) */ ;)))))) }; -struct mm_fp0_format { /* FPU multipy and add format (microMIPS) */ +struct mm_fp0_format { /* FPU multiply and add format (microMIPS) */ __BITFIELD_FIELD(unsigned int opcode : 6, __BITFIELD_FIELD(unsigned int ft : 5, __BITFIELD_FIELD(unsigned int fs : 5, @@ -799,6 +800,13 @@ struct mm_x_format { /* Scaled indexed load format (microMIPS) */ ;))))) }; +struct mm_a_format { /* ADDIUPC format (microMIPS) */ + __BITFIELD_FIELD(unsigned int opcode : 6, + __BITFIELD_FIELD(unsigned int rs : 3, + __BITFIELD_FIELD(signed int simmediate : 23, + ;))) +}; + /* * microMIPS instruction formats (16-bit length) */ @@ -940,6 +948,7 @@ union mips_instruction { struct mm_i_format mm_i_format; struct mm_m_format mm_m_format; struct mm_x_format mm_x_format; + struct mm_a_format mm_a_format; struct mm_b0_format mm_b0_format; struct mm_b1_format mm_b1_format; struct mm16_m_format mm16_m_format ; diff --git a/arch/mips/kernel/cpu-bugs64.c b/arch/mips/kernel/cpu-bugs64.c index 09f4034f239f..6392dbe504fb 100644 --- a/arch/mips/kernel/cpu-bugs64.c +++ b/arch/mips/kernel/cpu-bugs64.c @@ -190,7 +190,7 @@ static inline void check_daddi(void) printk("Checking for the daddi bug... "); local_irq_save(flags); - handler = set_except_vector(12, handle_daddi_ov); + handler = set_except_vector(EXCCODE_OV, handle_daddi_ov); /* * The following code fails to trigger an overflow exception * when executed on R4000 rev. 2.2 or 3.0 (PRId 00000422 or @@ -214,7 +214,7 @@ static inline void check_daddi(void) ".set pop" : "=r" (v), "=&r" (tmp) : "I" (0xffffffffffffdb9aUL), "I" (0x1234)); - set_except_vector(12, handler); + set_except_vector(EXCCODE_OV, handler); local_irq_restore(flags); if (daddi_ov) { @@ -225,14 +225,14 @@ static inline void check_daddi(void) printk("yes, workaround... "); local_irq_save(flags); - handler = set_except_vector(12, handle_daddi_ov); + handler = set_except_vector(EXCCODE_OV, handle_daddi_ov); asm volatile( "addiu %1, $0, %2\n\t" "dsrl %1, %1, 1\n\t" "daddi %0, %1, %3" : "=r" (v), "=&r" (tmp) : "I" (0xffffffffffffdb9aUL), "I" (0x1234)); - set_except_vector(12, handler); + set_except_vector(EXCCODE_OV, handler); local_irq_restore(flags); if (daddi_ov) { diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c index 6b9064499bd3..b725b713b9f8 100644 --- a/arch/mips/kernel/cpu-probe.c +++ b/arch/mips/kernel/cpu-probe.c @@ -99,6 +99,161 @@ static inline void cpu_set_fpu_fcsr_mask(struct cpuinfo_mips *c) } /* + * Determine the IEEE 754 NaN encodings and ABS.fmt/NEG.fmt execution modes + * supported by FPU hardware. + */ +static void cpu_set_fpu_2008(struct cpuinfo_mips *c) +{ + if (c->isa_level & (MIPS_CPU_ISA_M32R1 | MIPS_CPU_ISA_M64R1 | + MIPS_CPU_ISA_M32R2 | MIPS_CPU_ISA_M64R2 | + MIPS_CPU_ISA_M32R6 | MIPS_CPU_ISA_M64R6)) { + unsigned long sr, fir, fcsr, fcsr0, fcsr1; + + sr = read_c0_status(); + __enable_fpu(FPU_AS_IS); + + fir = read_32bit_cp1_register(CP1_REVISION); + if (fir & MIPS_FPIR_HAS2008) { + fcsr = read_32bit_cp1_register(CP1_STATUS); + + fcsr0 = fcsr & ~(FPU_CSR_ABS2008 | FPU_CSR_NAN2008); + write_32bit_cp1_register(CP1_STATUS, fcsr0); + fcsr0 = read_32bit_cp1_register(CP1_STATUS); + + fcsr1 = fcsr | FPU_CSR_ABS2008 | FPU_CSR_NAN2008; + write_32bit_cp1_register(CP1_STATUS, fcsr1); + fcsr1 = read_32bit_cp1_register(CP1_STATUS); + + write_32bit_cp1_register(CP1_STATUS, fcsr); + + if (!(fcsr0 & FPU_CSR_NAN2008)) + c->options |= MIPS_CPU_NAN_LEGACY; + if (fcsr1 & FPU_CSR_NAN2008) + c->options |= MIPS_CPU_NAN_2008; + + if ((fcsr0 ^ fcsr1) & FPU_CSR_ABS2008) + c->fpu_msk31 &= ~FPU_CSR_ABS2008; + else + c->fpu_csr31 |= fcsr & FPU_CSR_ABS2008; + + if ((fcsr0 ^ fcsr1) & FPU_CSR_NAN2008) + c->fpu_msk31 &= ~FPU_CSR_NAN2008; + else + c->fpu_csr31 |= fcsr & FPU_CSR_NAN2008; + } else { + c->options |= MIPS_CPU_NAN_LEGACY; + } + + write_c0_status(sr); + } else { + c->options |= MIPS_CPU_NAN_LEGACY; + } +} + +/* + * IEEE 754 conformance mode to use. Affects the NaN encoding and the + * ABS.fmt/NEG.fmt execution mode. + */ +static enum { STRICT, LEGACY, STD2008, RELAXED } ieee754 = STRICT; + +/* + * Set the IEEE 754 NaN encodings and the ABS.fmt/NEG.fmt execution modes + * to support by the FPU emulator according to the IEEE 754 conformance + * mode selected. Note that "relaxed" straps the emulator so that it + * allows 2008-NaN binaries even for legacy processors. + */ +static void cpu_set_nofpu_2008(struct cpuinfo_mips *c) +{ + c->options &= ~(MIPS_CPU_NAN_2008 | MIPS_CPU_NAN_LEGACY); + c->fpu_csr31 &= ~(FPU_CSR_ABS2008 | FPU_CSR_NAN2008); + c->fpu_msk31 &= ~(FPU_CSR_ABS2008 | FPU_CSR_NAN2008); + + switch (ieee754) { + case STRICT: + if (c->isa_level & (MIPS_CPU_ISA_M32R1 | MIPS_CPU_ISA_M64R1 | + MIPS_CPU_ISA_M32R2 | MIPS_CPU_ISA_M64R2 | + MIPS_CPU_ISA_M32R6 | MIPS_CPU_ISA_M64R6)) { + c->options |= MIPS_CPU_NAN_2008 | MIPS_CPU_NAN_LEGACY; + } else { + c->options |= MIPS_CPU_NAN_LEGACY; + c->fpu_msk31 |= FPU_CSR_ABS2008 | FPU_CSR_NAN2008; + } + break; + case LEGACY: + c->options |= MIPS_CPU_NAN_LEGACY; + c->fpu_msk31 |= FPU_CSR_ABS2008 | FPU_CSR_NAN2008; + break; + case STD2008: + c->options |= MIPS_CPU_NAN_2008; + c->fpu_csr31 |= FPU_CSR_ABS2008 | FPU_CSR_NAN2008; + c->fpu_msk31 |= FPU_CSR_ABS2008 | FPU_CSR_NAN2008; + break; + case RELAXED: + c->options |= MIPS_CPU_NAN_2008 | MIPS_CPU_NAN_LEGACY; + break; + } +} + +/* + * Override the IEEE 754 NaN encoding and ABS.fmt/NEG.fmt execution mode + * according to the "ieee754=" parameter. + */ +static void cpu_set_nan_2008(struct cpuinfo_mips *c) +{ + switch (ieee754) { + case STRICT: + mips_use_nan_legacy = !!cpu_has_nan_legacy; + mips_use_nan_2008 = !!cpu_has_nan_2008; + break; + case LEGACY: + mips_use_nan_legacy = !!cpu_has_nan_legacy; + mips_use_nan_2008 = !cpu_has_nan_legacy; + break; + case STD2008: + mips_use_nan_legacy = !cpu_has_nan_2008; + mips_use_nan_2008 = !!cpu_has_nan_2008; + break; + case RELAXED: + mips_use_nan_legacy = true; + mips_use_nan_2008 = true; + break; + } +} + +/* + * IEEE 754 NaN encoding and ABS.fmt/NEG.fmt execution mode override + * settings: + * + * strict: accept binaries that request a NaN encoding supported by the FPU + * legacy: only accept legacy-NaN binaries + * 2008: only accept 2008-NaN binaries + * relaxed: accept any binaries regardless of whether supported by the FPU + */ +static int __init ieee754_setup(char *s) +{ + if (!s) + return -1; + else if (!strcmp(s, "strict")) + ieee754 = STRICT; + else if (!strcmp(s, "legacy")) + ieee754 = LEGACY; + else if (!strcmp(s, "2008")) + ieee754 = STD2008; + else if (!strcmp(s, "relaxed")) + ieee754 = RELAXED; + else + return -1; + + if (!(boot_cpu_data.options & MIPS_CPU_FPU)) + cpu_set_nofpu_2008(&boot_cpu_data); + cpu_set_nan_2008(&boot_cpu_data); + + return 0; +} + +early_param("ieee754", ieee754_setup); + +/* * Set the FIR feature flags for the FPU emulator. */ static void cpu_set_nofpu_id(struct cpuinfo_mips *c) @@ -113,6 +268,8 @@ static void cpu_set_nofpu_id(struct cpuinfo_mips *c) if (c->isa_level & (MIPS_CPU_ISA_M32R2 | MIPS_CPU_ISA_M64R2 | MIPS_CPU_ISA_M32R6 | MIPS_CPU_ISA_M64R6)) value |= MIPS_FPIR_F64 | MIPS_FPIR_L | MIPS_FPIR_W; + if (c->options & MIPS_CPU_NAN_2008) + value |= MIPS_FPIR_HAS2008; c->fpu_id = value; } @@ -137,6 +294,8 @@ static void cpu_set_fpu_opts(struct cpuinfo_mips *c) } cpu_set_fpu_fcsr_mask(c); + cpu_set_fpu_2008(c); + cpu_set_nan_2008(c); } /* @@ -147,6 +306,8 @@ static void cpu_set_nofpu_opts(struct cpuinfo_mips *c) c->options &= ~MIPS_CPU_FPU; c->fpu_msk31 = mips_nofpu_msk31; + cpu_set_nofpu_2008(c); + cpu_set_nan_2008(c); cpu_set_nofpu_id(c); } diff --git a/arch/mips/kernel/elf.c b/arch/mips/kernel/elf.c index 4a4d9e067c89..c3c234dc0c07 100644 --- a/arch/mips/kernel/elf.c +++ b/arch/mips/kernel/elf.c @@ -11,6 +11,12 @@ #include <linux/elf.h> #include <linux/sched.h> +#include <asm/cpu-info.h> + +/* Whether to accept legacy-NaN and 2008-NaN user binaries. */ +bool mips_use_nan_legacy; +bool mips_use_nan_2008; + /* FPU modes */ enum { FP_FRE, @@ -68,15 +74,23 @@ static struct mode_req none_req = { true, true, false, true, true }; int arch_elf_pt_proc(void *_ehdr, void *_phdr, struct file *elf, bool is_interp, struct arch_elf_state *state) { - struct elf32_hdr *ehdr32 = _ehdr; + union { + struct elf32_hdr e32; + struct elf64_hdr e64; + } *ehdr = _ehdr; struct elf32_phdr *phdr32 = _phdr; struct elf64_phdr *phdr64 = _phdr; struct mips_elf_abiflags_v0 abiflags; + bool elf32; + u32 flags; int ret; + elf32 = ehdr->e32.e_ident[EI_CLASS] == ELFCLASS32; + flags = elf32 ? ehdr->e32.e_flags : ehdr->e64.e_flags; + /* Lets see if this is an O32 ELF */ - if (ehdr32->e_ident[EI_CLASS] == ELFCLASS32) { - if (ehdr32->e_flags & EF_MIPS_FP64) { + if (elf32) { + if (flags & EF_MIPS_FP64) { /* * Set MIPS_ABI_FP_OLD_64 for EF_MIPS_FP64. We will override it * later if needed @@ -120,13 +134,50 @@ int arch_elf_pt_proc(void *_ehdr, void *_phdr, struct file *elf, return 0; } -int arch_check_elf(void *_ehdr, bool has_interpreter, +int arch_check_elf(void *_ehdr, bool has_interpreter, void *_interp_ehdr, struct arch_elf_state *state) { - struct elf32_hdr *ehdr = _ehdr; + union { + struct elf32_hdr e32; + struct elf64_hdr e64; + } *ehdr = _ehdr; + union { + struct elf32_hdr e32; + struct elf64_hdr e64; + } *iehdr = _interp_ehdr; struct mode_req prog_req, interp_req; int fp_abi, interp_fp_abi, abi0, abi1, max_abi; - bool is_mips64; + bool elf32; + u32 flags; + + elf32 = ehdr->e32.e_ident[EI_CLASS] == ELFCLASS32; + flags = elf32 ? ehdr->e32.e_flags : ehdr->e64.e_flags; + + /* + * Determine the NaN personality, reject the binary if not allowed. + * Also ensure that any interpreter matches the executable. + */ + if (flags & EF_MIPS_NAN2008) { + if (mips_use_nan_2008) + state->nan_2008 = 1; + else + return -ENOEXEC; + } else { + if (mips_use_nan_legacy) + state->nan_2008 = 0; + else + return -ENOEXEC; + } + if (has_interpreter) { + bool ielf32; + u32 iflags; + + ielf32 = iehdr->e32.e_ident[EI_CLASS] == ELFCLASS32; + iflags = ielf32 ? iehdr->e32.e_flags : iehdr->e64.e_flags; + + if ((flags ^ iflags) & EF_MIPS_NAN2008) + return -ELIBBAD; + } if (!config_enabled(CONFIG_MIPS_O32_FP64_SUPPORT)) return 0; @@ -142,21 +193,18 @@ int arch_check_elf(void *_ehdr, bool has_interpreter, abi0 = abi1 = fp_abi; } - is_mips64 = (ehdr->e_ident[EI_CLASS] == ELFCLASS64) || - (ehdr->e_flags & EF_MIPS_ABI2); + if (elf32 && !(flags & EF_MIPS_ABI2)) { + /* Default to a mode capable of running code expecting FR=0 */ + state->overall_fp_mode = cpu_has_mips_r6 ? FP_FRE : FP_FR0; - if (is_mips64) { + /* Allow all ABIs we know about */ + max_abi = MIPS_ABI_FP_64A; + } else { /* MIPS64 code always uses FR=1, thus the default is easy */ state->overall_fp_mode = FP_FR1; /* Disallow access to the various FPXX & FP64 ABIs */ max_abi = MIPS_ABI_FP_SOFT; - } else { - /* Default to a mode capable of running code expecting FR=0 */ - state->overall_fp_mode = cpu_has_mips_r6 ? FP_FRE : FP_FR0; - - /* Allow all ABIs we know about */ - max_abi = MIPS_ABI_FP_64A; } if ((abi0 > max_abi && abi0 != MIPS_ABI_FP_UNKNOWN) || @@ -254,3 +302,27 @@ void mips_set_personality_fp(struct arch_elf_state *state) BUG(); } } + +/* + * Select the IEEE 754 NaN encoding and ABS.fmt/NEG.fmt execution mode + * in FCSR according to the ELF NaN personality. + */ +void mips_set_personality_nan(struct arch_elf_state *state) +{ + struct cpuinfo_mips *c = &boot_cpu_data; + struct task_struct *t = current; + + t->thread.fpu.fcr31 = c->fpu_csr31; + switch (state->nan_2008) { + case 0: + break; + case 1: + if (!(c->fpu_msk31 & FPU_CSR_NAN2008)) + t->thread.fpu.fcr31 |= FPU_CSR_NAN2008; + if (!(c->fpu_msk31 & FPU_CSR_ABS2008)) + t->thread.fpu.fcr31 |= FPU_CSR_ABS2008; + break; + default: + BUG(); + } +} diff --git a/arch/mips/kernel/gpio_txx9.c b/arch/mips/kernel/gpio_txx9.c index c6854d9df926..705be43c3533 100644 --- a/arch/mips/kernel/gpio_txx9.c +++ b/arch/mips/kernel/gpio_txx9.c @@ -21,7 +21,7 @@ static struct txx9_pio_reg __iomem *txx9_pioptr; static int txx9_gpio_get(struct gpio_chip *chip, unsigned int offset) { - return __raw_readl(&txx9_pioptr->din) & (1 << offset); + return !!(__raw_readl(&txx9_pioptr->din) & (1 << offset)); } static void txx9_gpio_set_raw(unsigned int offset, int value) diff --git a/arch/mips/kernel/ptrace.c b/arch/mips/kernel/ptrace.c index 4f0ac78d17f1..a5279b2f3198 100644 --- a/arch/mips/kernel/ptrace.c +++ b/arch/mips/kernel/ptrace.c @@ -548,9 +548,6 @@ static const struct pt_regs_offset regoffset_table[] = { REG_OFFSET_NAME(c0_badvaddr, cp0_badvaddr), REG_OFFSET_NAME(c0_cause, cp0_cause), REG_OFFSET_NAME(c0_epc, cp0_epc), -#ifdef CONFIG_MIPS_MT_SMTC - REG_OFFSET_NAME(c0_tcstatus, cp0_tcstatus), -#endif #ifdef CONFIG_CPU_CAVIUM_OCTEON REG_OFFSET_NAME(mpl0, mpl[0]), REG_OFFSET_NAME(mpl1, mpl[1]), diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c index 66aac55df349..569a7d5242dd 100644 --- a/arch/mips/kernel/setup.c +++ b/arch/mips/kernel/setup.c @@ -623,7 +623,7 @@ static void __init request_crashkernel(struct resource *res) #define USE_PROM_CMDLINE IS_ENABLED(CONFIG_MIPS_CMDLINE_FROM_BOOTLOADER) #define USE_DTB_CMDLINE IS_ENABLED(CONFIG_MIPS_CMDLINE_FROM_DTB) -#define EXTEND_WITH_PROM IS_ENABLED(CONFIG_MIPS_CMDLINE_EXTEND) +#define EXTEND_WITH_PROM IS_ENABLED(CONFIG_MIPS_CMDLINE_DTB_EXTEND) static void __init arch_mem_init(char **cmdline_p) { diff --git a/arch/mips/kernel/smp-cps.c b/arch/mips/kernel/smp-cps.c index e04c8057b882..2ad4e4c96d61 100644 --- a/arch/mips/kernel/smp-cps.c +++ b/arch/mips/kernel/smp-cps.c @@ -202,6 +202,9 @@ static void boot_core(unsigned core) /* Ensure its coherency is disabled */ write_gcr_co_coherence(0); + /* Start it with the legacy memory map and exception base */ + write_gcr_co_reset_ext_base(CM_GCR_RESET_EXT_BASE_UEB); + /* Ensure the core can access the GCRs */ access = read_gcr_access(); access |= 1 << (CM_GCR_ACCESS_ACCESSEN_SHF + core); diff --git a/arch/mips/kernel/sync-r4k.c b/arch/mips/kernel/sync-r4k.c index 2242bdd4370e..4472a7f98577 100644 --- a/arch/mips/kernel/sync-r4k.c +++ b/arch/mips/kernel/sync-r4k.c @@ -17,35 +17,23 @@ #include <asm/barrier.h> #include <asm/mipsregs.h> -static atomic_t count_start_flag = ATOMIC_INIT(0); +static unsigned int initcount = 0; static atomic_t count_count_start = ATOMIC_INIT(0); static atomic_t count_count_stop = ATOMIC_INIT(0); -static atomic_t count_reference = ATOMIC_INIT(0); #define COUNTON 100 -#define NR_LOOPS 5 +#define NR_LOOPS 3 void synchronise_count_master(int cpu) { int i; unsigned long flags; - unsigned int initcount; printk(KERN_INFO "Synchronize counters for CPU %u: ", cpu); local_irq_save(flags); /* - * Notify the slaves that it's time to start - */ - atomic_set(&count_reference, read_c0_count()); - atomic_set(&count_start_flag, cpu); - smp_wmb(); - - /* Count will be initialised to current timer for all CPU's */ - initcount = read_c0_count(); - - /* * We loop a few times to get a primed instruction cache, * then the last pass is more or less synchronised and * the master and slaves each set their cycle counters to a known @@ -63,9 +51,13 @@ void synchronise_count_master(int cpu) atomic_set(&count_count_stop, 0); smp_wmb(); - /* this lets the slaves write their count register */ + /* Let the slave writes its count register */ atomic_inc(&count_count_start); + /* Count will be initialised to current timer */ + if (i == 1) + initcount = read_c0_count(); + /* * Everyone initialises count in the last loop: */ @@ -73,7 +65,7 @@ void synchronise_count_master(int cpu) write_c0_count(initcount); /* - * Wait for all slaves to leave the synchronization point: + * Wait for slave to leave the synchronization point: */ while (atomic_read(&count_count_stop) != 1) mb(); @@ -83,7 +75,6 @@ void synchronise_count_master(int cpu) } /* Arrange for an interrupt in a short while */ write_c0_compare(read_c0_count() + COUNTON); - atomic_set(&count_start_flag, 0); local_irq_restore(flags); @@ -98,19 +89,12 @@ void synchronise_count_master(int cpu) void synchronise_count_slave(int cpu) { int i; - unsigned int initcount; /* * Not every cpu is online at the time this gets called, * so we first wait for the master to say everyone is ready */ - while (atomic_read(&count_start_flag) != cpu) - mb(); - - /* Count will be initialised to next expire for all CPU's */ - initcount = atomic_read(&count_reference); - for (i = 0; i < NR_LOOPS; i++) { atomic_inc(&count_count_start); while (atomic_read(&count_count_start) != 2) diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c index 886cb1976e90..bafcb7ad5c85 100644 --- a/arch/mips/kernel/traps.c +++ b/arch/mips/kernel/traps.c @@ -2250,7 +2250,7 @@ void __init trap_init(void) * Only some CPUs have the watch exceptions. */ if (cpu_has_watch) - set_except_vector(23, handle_watch); + set_except_vector(EXCCODE_WATCH, handle_watch); /* * Initialise interrupt handlers @@ -2277,27 +2277,27 @@ void __init trap_init(void) if (board_be_init) board_be_init(); - set_except_vector(0, using_rollback_handler() ? rollback_handle_int - : handle_int); - set_except_vector(1, handle_tlbm); - set_except_vector(2, handle_tlbl); - set_except_vector(3, handle_tlbs); + set_except_vector(EXCCODE_INT, using_rollback_handler() ? + rollback_handle_int : handle_int); + set_except_vector(EXCCODE_MOD, handle_tlbm); + set_except_vector(EXCCODE_TLBL, handle_tlbl); + set_except_vector(EXCCODE_TLBS, handle_tlbs); - set_except_vector(4, handle_adel); - set_except_vector(5, handle_ades); + set_except_vector(EXCCODE_ADEL, handle_adel); + set_except_vector(EXCCODE_ADES, handle_ades); - set_except_vector(6, handle_ibe); - set_except_vector(7, handle_dbe); + set_except_vector(EXCCODE_IBE, handle_ibe); + set_except_vector(EXCCODE_DBE, handle_dbe); - set_except_vector(8, handle_sys); - set_except_vector(9, handle_bp); - set_except_vector(10, rdhwr_noopt ? handle_ri : + set_except_vector(EXCCODE_SYS, handle_sys); + set_except_vector(EXCCODE_BP, handle_bp); + set_except_vector(EXCCODE_RI, rdhwr_noopt ? handle_ri : (cpu_has_vtag_icache ? handle_ri_rdhwr_vivt : handle_ri_rdhwr)); - set_except_vector(11, handle_cpu); - set_except_vector(12, handle_ov); - set_except_vector(13, handle_tr); - set_except_vector(14, handle_msa_fpe); + set_except_vector(EXCCODE_CPU, handle_cpu); + set_except_vector(EXCCODE_OV, handle_ov); + set_except_vector(EXCCODE_TR, handle_tr); + set_except_vector(EXCCODE_MSAFPE, handle_msa_fpe); if (current_cpu_type() == CPU_R6000 || current_cpu_type() == CPU_R6000A) { @@ -2318,25 +2318,25 @@ void __init trap_init(void) board_nmi_handler_setup(); if (cpu_has_fpu && !cpu_has_nofpuex) - set_except_vector(15, handle_fpe); + set_except_vector(EXCCODE_FPE, handle_fpe); - set_except_vector(16, handle_ftlb); + set_except_vector(MIPS_EXCCODE_TLBPAR, handle_ftlb); if (cpu_has_rixiex) { - set_except_vector(19, tlb_do_page_fault_0); - set_except_vector(20, tlb_do_page_fault_0); + set_except_vector(EXCCODE_TLBRI, tlb_do_page_fault_0); + set_except_vector(EXCCODE_TLBXI, tlb_do_page_fault_0); } - set_except_vector(21, handle_msa); - set_except_vector(22, handle_mdmx); + set_except_vector(EXCCODE_MSADIS, handle_msa); + set_except_vector(EXCCODE_MDMX, handle_mdmx); if (cpu_has_mcheck) - set_except_vector(24, handle_mcheck); + set_except_vector(EXCCODE_MCHECK, handle_mcheck); if (cpu_has_mipsmt) - set_except_vector(25, handle_mt); + set_except_vector(EXCCODE_THREAD, handle_mt); - set_except_vector(26, handle_dsp); + set_except_vector(EXCCODE_DSPDIS, handle_dsp); if (board_cache_error_setup) board_cache_error_setup(); diff --git a/arch/mips/kvm/callback.c b/arch/mips/kvm/callback.c index 313c2e37b978..d88aa2173fb0 100644 --- a/arch/mips/kvm/callback.c +++ b/arch/mips/kvm/callback.c @@ -11,4 +11,4 @@ #include <linux/kvm_host.h> struct kvm_mips_callbacks *kvm_mips_callbacks; -EXPORT_SYMBOL(kvm_mips_callbacks); +EXPORT_SYMBOL_GPL(kvm_mips_callbacks); diff --git a/arch/mips/kvm/dyntrans.c b/arch/mips/kvm/dyntrans.c index 521121bdebff..f1527a465c1b 100644 --- a/arch/mips/kvm/dyntrans.c +++ b/arch/mips/kvm/dyntrans.c @@ -86,10 +86,8 @@ int kvm_mips_trans_mfc0(uint32_t inst, uint32_t *opc, struct kvm_vcpu *vcpu) } else { mfc0_inst = LW_TEMPLATE; mfc0_inst |= ((rt & 0x1f) << 16); - mfc0_inst |= - offsetof(struct mips_coproc, - reg[rd][sel]) + offsetof(struct kvm_mips_commpage, - cop0); + mfc0_inst |= offsetof(struct kvm_mips_commpage, + cop0.reg[rd][sel]); } if (KVM_GUEST_KSEGX(opc) == KVM_GUEST_KSEG0) { @@ -123,9 +121,7 @@ int kvm_mips_trans_mtc0(uint32_t inst, uint32_t *opc, struct kvm_vcpu *vcpu) sel = inst & 0x7; mtc0_inst |= ((rt & 0x1f) << 16); - mtc0_inst |= - offsetof(struct mips_coproc, - reg[rd][sel]) + offsetof(struct kvm_mips_commpage, cop0); + mtc0_inst |= offsetof(struct kvm_mips_commpage, cop0.reg[rd][sel]); if (KVM_GUEST_KSEGX(opc) == KVM_GUEST_KSEG0) { kseg0_opc = diff --git a/arch/mips/kvm/emulate.c b/arch/mips/kvm/emulate.c index 1b675c7ce89f..b37954cc880d 100644 --- a/arch/mips/kvm/emulate.c +++ b/arch/mips/kvm/emulate.c @@ -20,6 +20,7 @@ #include <linux/random.h> #include <asm/page.h> #include <asm/cacheflush.h> +#include <asm/cacheops.h> #include <asm/cpu-info.h> #include <asm/mmu_context.h> #include <asm/tlbflush.h> @@ -29,7 +30,6 @@ #include <asm/r4kcache.h> #define CONFIG_MIPS_MT -#include "opcode.h" #include "interrupt.h" #include "commpage.h" @@ -1239,21 +1239,20 @@ enum emulation_result kvm_mips_emulate_CP0(uint32_t inst, uint32_t *opc, er = EMULATE_FAIL; break; - case mfmcz_op: + case mfmc0_op: #ifdef KVM_MIPS_DEBUG_COP0_COUNTERS cop0->stat[MIPS_CP0_STATUS][0]++; #endif - if (rt != 0) { + if (rt != 0) vcpu->arch.gprs[rt] = kvm_read_c0_guest_status(cop0); - } /* EI */ if (inst & 0x20) { - kvm_debug("[%#lx] mfmcz_op: EI\n", + kvm_debug("[%#lx] mfmc0_op: EI\n", vcpu->arch.pc); kvm_set_c0_guest_status(cop0, ST0_IE); } else { - kvm_debug("[%#lx] mfmcz_op: DI\n", + kvm_debug("[%#lx] mfmc0_op: DI\n", vcpu->arch.pc); kvm_clear_c0_guest_status(cop0, ST0_IE); } @@ -1545,19 +1544,6 @@ int kvm_mips_sync_icache(unsigned long va, struct kvm_vcpu *vcpu) return 0; } -#define MIPS_CACHE_OP_INDEX_INV 0x0 -#define MIPS_CACHE_OP_INDEX_LD_TAG 0x1 -#define MIPS_CACHE_OP_INDEX_ST_TAG 0x2 -#define MIPS_CACHE_OP_IMP 0x3 -#define MIPS_CACHE_OP_HIT_INV 0x4 -#define MIPS_CACHE_OP_FILL_WB_INV 0x5 -#define MIPS_CACHE_OP_HIT_HB 0x6 -#define MIPS_CACHE_OP_FETCH_LOCK 0x7 - -#define MIPS_CACHE_ICACHE 0x0 -#define MIPS_CACHE_DCACHE 0x1 -#define MIPS_CACHE_SEC 0x3 - enum emulation_result kvm_mips_emulate_cache(uint32_t inst, uint32_t *opc, uint32_t cause, struct kvm_run *run, @@ -1582,8 +1568,8 @@ enum emulation_result kvm_mips_emulate_cache(uint32_t inst, uint32_t *opc, base = (inst >> 21) & 0x1f; op_inst = (inst >> 16) & 0x1f; offset = (int16_t)inst; - cache = (inst >> 16) & 0x3; - op = (inst >> 18) & 0x7; + cache = op_inst & CacheOp_Cache; + op = op_inst & CacheOp_Op; va = arch->gprs[base] + offset; @@ -1595,14 +1581,14 @@ enum emulation_result kvm_mips_emulate_cache(uint32_t inst, uint32_t *opc, * invalidate the caches entirely by stepping through all the * ways/indexes */ - if (op == MIPS_CACHE_OP_INDEX_INV) { + if (op == Index_Writeback_Inv) { kvm_debug("@ %#lx/%#lx CACHE (cache: %#x, op: %#x, base[%d]: %#lx, offset: %#x\n", vcpu->arch.pc, vcpu->arch.gprs[31], cache, op, base, arch->gprs[base], offset); - if (cache == MIPS_CACHE_DCACHE) + if (cache == Cache_D) r4k_blast_dcache(); - else if (cache == MIPS_CACHE_ICACHE) + else if (cache == Cache_I) r4k_blast_icache(); else { kvm_err("%s: unsupported CACHE INDEX operation\n", @@ -1675,9 +1661,7 @@ enum emulation_result kvm_mips_emulate_cache(uint32_t inst, uint32_t *opc, skip_fault: /* XXXKYMA: Only a subset of cache ops are supported, used by Linux */ - if (cache == MIPS_CACHE_DCACHE - && (op == MIPS_CACHE_OP_FILL_WB_INV - || op == MIPS_CACHE_OP_HIT_INV)) { + if (op_inst == Hit_Writeback_Inv_D || op_inst == Hit_Invalidate_D) { flush_dcache_line(va); #ifdef CONFIG_KVM_MIPS_DYN_TRANS @@ -1687,7 +1671,7 @@ skip_fault: */ kvm_mips_trans_cache_va(inst, opc, vcpu); #endif - } else if (op == MIPS_CACHE_OP_HIT_INV && cache == MIPS_CACHE_ICACHE) { + } else if (op_inst == Hit_Invalidate_I) { flush_dcache_line(va); flush_icache_line(va); @@ -1781,7 +1765,7 @@ enum emulation_result kvm_mips_emulate_syscall(unsigned long cause, kvm_debug("Delivering SYSCALL @ pc %#lx\n", arch->pc); kvm_change_c0_guest_cause(cop0, (0xff), - (T_SYSCALL << CAUSEB_EXCCODE)); + (EXCCODE_SYS << CAUSEB_EXCCODE)); /* Set PC to the exception entry point */ arch->pc = KVM_GUEST_KSEG0 + 0x180; @@ -1828,7 +1812,7 @@ enum emulation_result kvm_mips_emulate_tlbmiss_ld(unsigned long cause, } kvm_change_c0_guest_cause(cop0, (0xff), - (T_TLB_LD_MISS << CAUSEB_EXCCODE)); + (EXCCODE_TLBL << CAUSEB_EXCCODE)); /* setup badvaddr, context and entryhi registers for the guest */ kvm_write_c0_guest_badvaddr(cop0, vcpu->arch.host_cp0_badvaddr); @@ -1874,7 +1858,7 @@ enum emulation_result kvm_mips_emulate_tlbinv_ld(unsigned long cause, } kvm_change_c0_guest_cause(cop0, (0xff), - (T_TLB_LD_MISS << CAUSEB_EXCCODE)); + (EXCCODE_TLBL << CAUSEB_EXCCODE)); /* setup badvaddr, context and entryhi registers for the guest */ kvm_write_c0_guest_badvaddr(cop0, vcpu->arch.host_cp0_badvaddr); @@ -1918,7 +1902,7 @@ enum emulation_result kvm_mips_emulate_tlbmiss_st(unsigned long cause, } kvm_change_c0_guest_cause(cop0, (0xff), - (T_TLB_ST_MISS << CAUSEB_EXCCODE)); + (EXCCODE_TLBS << CAUSEB_EXCCODE)); /* setup badvaddr, context and entryhi registers for the guest */ kvm_write_c0_guest_badvaddr(cop0, vcpu->arch.host_cp0_badvaddr); @@ -1962,7 +1946,7 @@ enum emulation_result kvm_mips_emulate_tlbinv_st(unsigned long cause, } kvm_change_c0_guest_cause(cop0, (0xff), - (T_TLB_ST_MISS << CAUSEB_EXCCODE)); + (EXCCODE_TLBS << CAUSEB_EXCCODE)); /* setup badvaddr, context and entryhi registers for the guest */ kvm_write_c0_guest_badvaddr(cop0, vcpu->arch.host_cp0_badvaddr); @@ -2033,7 +2017,8 @@ enum emulation_result kvm_mips_emulate_tlbmod(unsigned long cause, arch->pc = KVM_GUEST_KSEG0 + 0x180; } - kvm_change_c0_guest_cause(cop0, (0xff), (T_TLB_MOD << CAUSEB_EXCCODE)); + kvm_change_c0_guest_cause(cop0, (0xff), + (EXCCODE_MOD << CAUSEB_EXCCODE)); /* setup badvaddr, context and entryhi registers for the guest */ kvm_write_c0_guest_badvaddr(cop0, vcpu->arch.host_cp0_badvaddr); @@ -2068,7 +2053,7 @@ enum emulation_result kvm_mips_emulate_fpu_exc(unsigned long cause, arch->pc = KVM_GUEST_KSEG0 + 0x180; kvm_change_c0_guest_cause(cop0, (0xff), - (T_COP_UNUSABLE << CAUSEB_EXCCODE)); + (EXCCODE_CPU << CAUSEB_EXCCODE)); kvm_change_c0_guest_cause(cop0, (CAUSEF_CE), (0x1 << CAUSEB_CE)); return EMULATE_DONE; @@ -2096,7 +2081,7 @@ enum emulation_result kvm_mips_emulate_ri_exc(unsigned long cause, kvm_debug("Delivering RI @ pc %#lx\n", arch->pc); kvm_change_c0_guest_cause(cop0, (0xff), - (T_RES_INST << CAUSEB_EXCCODE)); + (EXCCODE_RI << CAUSEB_EXCCODE)); /* Set PC to the exception entry point */ arch->pc = KVM_GUEST_KSEG0 + 0x180; @@ -2131,7 +2116,7 @@ enum emulation_result kvm_mips_emulate_bp_exc(unsigned long cause, kvm_debug("Delivering BP @ pc %#lx\n", arch->pc); kvm_change_c0_guest_cause(cop0, (0xff), - (T_BREAK << CAUSEB_EXCCODE)); + (EXCCODE_BP << CAUSEB_EXCCODE)); /* Set PC to the exception entry point */ arch->pc = KVM_GUEST_KSEG0 + 0x180; @@ -2166,7 +2151,7 @@ enum emulation_result kvm_mips_emulate_trap_exc(unsigned long cause, kvm_debug("Delivering TRAP @ pc %#lx\n", arch->pc); kvm_change_c0_guest_cause(cop0, (0xff), - (T_TRAP << CAUSEB_EXCCODE)); + (EXCCODE_TR << CAUSEB_EXCCODE)); /* Set PC to the exception entry point */ arch->pc = KVM_GUEST_KSEG0 + 0x180; @@ -2201,7 +2186,7 @@ enum emulation_result kvm_mips_emulate_msafpe_exc(unsigned long cause, kvm_debug("Delivering MSAFPE @ pc %#lx\n", arch->pc); kvm_change_c0_guest_cause(cop0, (0xff), - (T_MSAFPE << CAUSEB_EXCCODE)); + (EXCCODE_MSAFPE << CAUSEB_EXCCODE)); /* Set PC to the exception entry point */ arch->pc = KVM_GUEST_KSEG0 + 0x180; @@ -2236,7 +2221,7 @@ enum emulation_result kvm_mips_emulate_fpe_exc(unsigned long cause, kvm_debug("Delivering FPE @ pc %#lx\n", arch->pc); kvm_change_c0_guest_cause(cop0, (0xff), - (T_FPE << CAUSEB_EXCCODE)); + (EXCCODE_FPE << CAUSEB_EXCCODE)); /* Set PC to the exception entry point */ arch->pc = KVM_GUEST_KSEG0 + 0x180; @@ -2271,7 +2256,7 @@ enum emulation_result kvm_mips_emulate_msadis_exc(unsigned long cause, kvm_debug("Delivering MSADIS @ pc %#lx\n", arch->pc); kvm_change_c0_guest_cause(cop0, (0xff), - (T_MSADIS << CAUSEB_EXCCODE)); + (EXCCODE_MSADIS << CAUSEB_EXCCODE)); /* Set PC to the exception entry point */ arch->pc = KVM_GUEST_KSEG0 + 0x180; @@ -2480,25 +2465,25 @@ enum emulation_result kvm_mips_check_privilege(unsigned long cause, if (usermode) { switch (exccode) { - case T_INT: - case T_SYSCALL: - case T_BREAK: - case T_RES_INST: - case T_TRAP: - case T_MSAFPE: - case T_FPE: - case T_MSADIS: + case EXCCODE_INT: + case EXCCODE_SYS: + case EXCCODE_BP: + case EXCCODE_RI: + case EXCCODE_TR: + case EXCCODE_MSAFPE: + case EXCCODE_FPE: + case EXCCODE_MSADIS: break; - case T_COP_UNUSABLE: + case EXCCODE_CPU: if (((cause & CAUSEF_CE) >> CAUSEB_CE) == 0) er = EMULATE_PRIV_FAIL; break; - case T_TLB_MOD: + case EXCCODE_MOD: break; - case T_TLB_LD_MISS: + case EXCCODE_TLBL: /* * We we are accessing Guest kernel space, then send an * address error exception to the guest @@ -2507,12 +2492,12 @@ enum emulation_result kvm_mips_check_privilege(unsigned long cause, kvm_debug("%s: LD MISS @ %#lx\n", __func__, badvaddr); cause &= ~0xff; - cause |= (T_ADDR_ERR_LD << CAUSEB_EXCCODE); + cause |= (EXCCODE_ADEL << CAUSEB_EXCCODE); er = EMULATE_PRIV_FAIL; } break; - case T_TLB_ST_MISS: + case EXCCODE_TLBS: /* * We we are accessing Guest kernel space, then send an * address error exception to the guest @@ -2521,26 +2506,26 @@ enum emulation_result kvm_mips_check_privilege(unsigned long cause, kvm_debug("%s: ST MISS @ %#lx\n", __func__, badvaddr); cause &= ~0xff; - cause |= (T_ADDR_ERR_ST << CAUSEB_EXCCODE); + cause |= (EXCCODE_ADES << CAUSEB_EXCCODE); er = EMULATE_PRIV_FAIL; } break; - case T_ADDR_ERR_ST: + case EXCCODE_ADES: kvm_debug("%s: address error ST @ %#lx\n", __func__, badvaddr); if ((badvaddr & PAGE_MASK) == KVM_GUEST_COMMPAGE_ADDR) { cause &= ~0xff; - cause |= (T_TLB_ST_MISS << CAUSEB_EXCCODE); + cause |= (EXCCODE_TLBS << CAUSEB_EXCCODE); } er = EMULATE_PRIV_FAIL; break; - case T_ADDR_ERR_LD: + case EXCCODE_ADEL: kvm_debug("%s: address error LD @ %#lx\n", __func__, badvaddr); if ((badvaddr & PAGE_MASK) == KVM_GUEST_COMMPAGE_ADDR) { cause &= ~0xff; - cause |= (T_TLB_LD_MISS << CAUSEB_EXCCODE); + cause |= (EXCCODE_TLBL << CAUSEB_EXCCODE); } er = EMULATE_PRIV_FAIL; break; @@ -2583,13 +2568,12 @@ enum emulation_result kvm_mips_handle_tlbmiss(unsigned long cause, * an entry into the guest TLB. */ index = kvm_mips_guest_tlb_lookup(vcpu, - (va & VPN2_MASK) | - (kvm_read_c0_guest_entryhi - (vcpu->arch.cop0) & ASID_MASK)); + (va & VPN2_MASK) | + (kvm_read_c0_guest_entryhi(vcpu->arch.cop0) & ASID_MASK)); if (index < 0) { - if (exccode == T_TLB_LD_MISS) { + if (exccode == EXCCODE_TLBL) { er = kvm_mips_emulate_tlbmiss_ld(cause, opc, run, vcpu); - } else if (exccode == T_TLB_ST_MISS) { + } else if (exccode == EXCCODE_TLBS) { er = kvm_mips_emulate_tlbmiss_st(cause, opc, run, vcpu); } else { kvm_err("%s: invalid exc code: %d\n", __func__, @@ -2604,10 +2588,10 @@ enum emulation_result kvm_mips_handle_tlbmiss(unsigned long cause, * exception to the guest */ if (!TLB_IS_VALID(*tlb, va)) { - if (exccode == T_TLB_LD_MISS) { + if (exccode == EXCCODE_TLBL) { er = kvm_mips_emulate_tlbinv_ld(cause, opc, run, vcpu); - } else if (exccode == T_TLB_ST_MISS) { + } else if (exccode == EXCCODE_TLBS) { er = kvm_mips_emulate_tlbinv_st(cause, opc, run, vcpu); } else { diff --git a/arch/mips/kvm/interrupt.c b/arch/mips/kvm/interrupt.c index 9b4445940c2b..95f790663b0c 100644 --- a/arch/mips/kvm/interrupt.c +++ b/arch/mips/kvm/interrupt.c @@ -128,7 +128,7 @@ int kvm_mips_irq_deliver_cb(struct kvm_vcpu *vcpu, unsigned int priority, && (!(kvm_read_c0_guest_status(cop0) & (ST0_EXL | ST0_ERL))) && (kvm_read_c0_guest_status(cop0) & IE_IRQ5)) { allowed = 1; - exccode = T_INT; + exccode = EXCCODE_INT; } break; @@ -137,7 +137,7 @@ int kvm_mips_irq_deliver_cb(struct kvm_vcpu *vcpu, unsigned int priority, && (!(kvm_read_c0_guest_status(cop0) & (ST0_EXL | ST0_ERL))) && (kvm_read_c0_guest_status(cop0) & IE_IRQ0)) { allowed = 1; - exccode = T_INT; + exccode = EXCCODE_INT; } break; @@ -146,7 +146,7 @@ int kvm_mips_irq_deliver_cb(struct kvm_vcpu *vcpu, unsigned int priority, && (!(kvm_read_c0_guest_status(cop0) & (ST0_EXL | ST0_ERL))) && (kvm_read_c0_guest_status(cop0) & IE_IRQ1)) { allowed = 1; - exccode = T_INT; + exccode = EXCCODE_INT; } break; @@ -155,7 +155,7 @@ int kvm_mips_irq_deliver_cb(struct kvm_vcpu *vcpu, unsigned int priority, && (!(kvm_read_c0_guest_status(cop0) & (ST0_EXL | ST0_ERL))) && (kvm_read_c0_guest_status(cop0) & IE_IRQ2)) { allowed = 1; - exccode = T_INT; + exccode = EXCCODE_INT; } break; diff --git a/arch/mips/kvm/locore.S b/arch/mips/kvm/locore.S index 7e2210846b8b..81687ab1b523 100644 --- a/arch/mips/kvm/locore.S +++ b/arch/mips/kvm/locore.S @@ -335,7 +335,7 @@ NESTED (MIPSX(GuestException), CALLFRAME_SIZ, ra) /* Now restore the host state just enough to run the handlers */ - /* Swtich EBASE to the one used by Linux */ + /* Switch EBASE to the one used by Linux */ /* load up the host EBASE */ mfc0 v0, CP0_STATUS @@ -490,11 +490,11 @@ __kvm_mips_return_to_guest: REG_ADDU t3, t1, t2 LONG_L k0, (t3) andi k0, k0, 0xff - mtc0 k0,CP0_ENTRYHI + mtc0 k0, CP0_ENTRYHI ehb /* Disable RDHWR access */ - mtc0 zero, CP0_HWRENA + mtc0 zero, CP0_HWRENA /* load the guest context from VCPU and return */ LONG_L $0, VCPU_R0(k1) @@ -606,11 +606,11 @@ __kvm_mips_return_to_host: /* Restore RDHWR access */ PTR_LI k0, 0x2000000F - mtc0 k0, CP0_HWRENA + mtc0 k0, CP0_HWRENA /* Restore RA, which is the address we will return to */ - LONG_L ra, PT_R31(k1) - j ra + LONG_L ra, PT_R31(k1) + j ra nop VECTOR_END(MIPSX(GuestExceptionEnd)) diff --git a/arch/mips/kvm/mips.c b/arch/mips/kvm/mips.c index b9b803facdbf..8bc3977576e6 100644 --- a/arch/mips/kvm/mips.c +++ b/arch/mips/kvm/mips.c @@ -229,7 +229,7 @@ void kvm_arch_commit_memory_region(struct kvm *kvm, kzalloc(npages * sizeof(unsigned long), GFP_KERNEL); if (!kvm->arch.guest_pmap) { - kvm_err("Failed to allocate guest PMAP"); + kvm_err("Failed to allocate guest PMAP\n"); return; } @@ -1264,8 +1264,8 @@ int kvm_mips_handle_exit(struct kvm_run *run, struct kvm_vcpu *vcpu) } switch (exccode) { - case T_INT: - kvm_debug("[%d]T_INT @ %p\n", vcpu->vcpu_id, opc); + case EXCCODE_INT: + kvm_debug("[%d]EXCCODE_INT @ %p\n", vcpu->vcpu_id, opc); ++vcpu->stat.int_exits; trace_kvm_exit(vcpu, INT_EXITS); @@ -1276,8 +1276,8 @@ int kvm_mips_handle_exit(struct kvm_run *run, struct kvm_vcpu *vcpu) ret = RESUME_GUEST; break; - case T_COP_UNUSABLE: - kvm_debug("T_COP_UNUSABLE: @ PC: %p\n", opc); + case EXCCODE_CPU: + kvm_debug("EXCCODE_CPU: @ PC: %p\n", opc); ++vcpu->stat.cop_unusable_exits; trace_kvm_exit(vcpu, COP_UNUSABLE_EXITS); @@ -1287,13 +1287,13 @@ int kvm_mips_handle_exit(struct kvm_run *run, struct kvm_vcpu *vcpu) ret = RESUME_HOST; break; - case T_TLB_MOD: + case EXCCODE_MOD: ++vcpu->stat.tlbmod_exits; trace_kvm_exit(vcpu, TLBMOD_EXITS); ret = kvm_mips_callbacks->handle_tlb_mod(vcpu); break; - case T_TLB_ST_MISS: + case EXCCODE_TLBS: kvm_debug("TLB ST fault: cause %#x, status %#lx, PC: %p, BadVaddr: %#lx\n", cause, kvm_read_c0_guest_status(vcpu->arch.cop0), opc, badvaddr); @@ -1303,7 +1303,7 @@ int kvm_mips_handle_exit(struct kvm_run *run, struct kvm_vcpu *vcpu) ret = kvm_mips_callbacks->handle_tlb_st_miss(vcpu); break; - case T_TLB_LD_MISS: + case EXCCODE_TLBL: kvm_debug("TLB LD fault: cause %#x, PC: %p, BadVaddr: %#lx\n", cause, opc, badvaddr); @@ -1312,55 +1312,55 @@ int kvm_mips_handle_exit(struct kvm_run *run, struct kvm_vcpu *vcpu) ret = kvm_mips_callbacks->handle_tlb_ld_miss(vcpu); break; - case T_ADDR_ERR_ST: + case EXCCODE_ADES: ++vcpu->stat.addrerr_st_exits; trace_kvm_exit(vcpu, ADDRERR_ST_EXITS); ret = kvm_mips_callbacks->handle_addr_err_st(vcpu); break; - case T_ADDR_ERR_LD: + case EXCCODE_ADEL: ++vcpu->stat.addrerr_ld_exits; trace_kvm_exit(vcpu, ADDRERR_LD_EXITS); ret = kvm_mips_callbacks->handle_addr_err_ld(vcpu); break; - case T_SYSCALL: + case EXCCODE_SYS: ++vcpu->stat.syscall_exits; trace_kvm_exit(vcpu, SYSCALL_EXITS); ret = kvm_mips_callbacks->handle_syscall(vcpu); break; - case T_RES_INST: + case EXCCODE_RI: ++vcpu->stat.resvd_inst_exits; trace_kvm_exit(vcpu, RESVD_INST_EXITS); ret = kvm_mips_callbacks->handle_res_inst(vcpu); break; - case T_BREAK: + case EXCCODE_BP: ++vcpu->stat.break_inst_exits; trace_kvm_exit(vcpu, BREAK_INST_EXITS); ret = kvm_mips_callbacks->handle_break(vcpu); break; - case T_TRAP: + case EXCCODE_TR: ++vcpu->stat.trap_inst_exits; trace_kvm_exit(vcpu, TRAP_INST_EXITS); ret = kvm_mips_callbacks->handle_trap(vcpu); break; - case T_MSAFPE: + case EXCCODE_MSAFPE: ++vcpu->stat.msa_fpe_exits; trace_kvm_exit(vcpu, MSA_FPE_EXITS); ret = kvm_mips_callbacks->handle_msa_fpe(vcpu); break; - case T_FPE: + case EXCCODE_FPE: ++vcpu->stat.fpe_exits; trace_kvm_exit(vcpu, FPE_EXITS); ret = kvm_mips_callbacks->handle_fpe(vcpu); break; - case T_MSADIS: + case EXCCODE_MSADIS: ++vcpu->stat.msa_disabled_exits; trace_kvm_exit(vcpu, MSA_DISABLED_EXITS); ret = kvm_mips_callbacks->handle_msa_disabled(vcpu); @@ -1620,7 +1620,7 @@ static struct notifier_block kvm_mips_csr_die_notifier = { .notifier_call = kvm_mips_csr_die_notify, }; -int __init kvm_mips_init(void) +static int __init kvm_mips_init(void) { int ret; @@ -1646,7 +1646,7 @@ int __init kvm_mips_init(void) return 0; } -void __exit kvm_mips_exit(void) +static void __exit kvm_mips_exit(void) { kvm_exit(); diff --git a/arch/mips/kvm/opcode.h b/arch/mips/kvm/opcode.h deleted file mode 100644 index 03a6ae84c7df..000000000000 --- a/arch/mips/kvm/opcode.h +++ /dev/null @@ -1,22 +0,0 @@ -/* - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - * - * Copyright (C) 2012 MIPS Technologies, Inc. All rights reserved. - * Authors: Sanjay Lal <sanjayl@kymasys.com> - */ - -/* Define opcode values not defined in <asm/isnt.h> */ - -#ifndef __KVM_MIPS_OPCODE_H__ -#define __KVM_MIPS_OPCODE_H__ - -/* COP0 Ops */ -#define mfmcz_op 0x0b /* 01011 */ -#define wrpgpr_op 0x0e /* 01110 */ - -/* COP0 opcodes (only if COP0 and CO=1): */ -#define wait_op 0x20 /* 100000 */ - -#endif /* __KVM_MIPS_OPCODE_H__ */ diff --git a/arch/mips/kvm/tlb.c b/arch/mips/kvm/tlb.c index 570479c03bdc..a08c43946247 100644 --- a/arch/mips/kvm/tlb.c +++ b/arch/mips/kvm/tlb.c @@ -35,17 +35,17 @@ #define PRIx64 "llx" atomic_t kvm_mips_instance; -EXPORT_SYMBOL(kvm_mips_instance); +EXPORT_SYMBOL_GPL(kvm_mips_instance); /* These function pointers are initialized once the KVM module is loaded */ kvm_pfn_t (*kvm_mips_gfn_to_pfn)(struct kvm *kvm, gfn_t gfn); -EXPORT_SYMBOL(kvm_mips_gfn_to_pfn); +EXPORT_SYMBOL_GPL(kvm_mips_gfn_to_pfn); void (*kvm_mips_release_pfn_clean)(kvm_pfn_t pfn); -EXPORT_SYMBOL(kvm_mips_release_pfn_clean); +EXPORT_SYMBOL_GPL(kvm_mips_release_pfn_clean); bool (*kvm_mips_is_error_pfn)(kvm_pfn_t pfn); -EXPORT_SYMBOL(kvm_mips_is_error_pfn); +EXPORT_SYMBOL_GPL(kvm_mips_is_error_pfn); uint32_t kvm_mips_get_kernel_asid(struct kvm_vcpu *vcpu) { @@ -111,7 +111,7 @@ void kvm_mips_dump_host_tlbs(void) mtc0_tlbw_hazard(); local_irq_restore(flags); } -EXPORT_SYMBOL(kvm_mips_dump_host_tlbs); +EXPORT_SYMBOL_GPL(kvm_mips_dump_host_tlbs); void kvm_mips_dump_guest_tlbs(struct kvm_vcpu *vcpu) { @@ -139,7 +139,7 @@ void kvm_mips_dump_guest_tlbs(struct kvm_vcpu *vcpu) (tlb.tlb_lo1 >> 3) & 7, tlb.tlb_mask); } } -EXPORT_SYMBOL(kvm_mips_dump_guest_tlbs); +EXPORT_SYMBOL_GPL(kvm_mips_dump_guest_tlbs); static int kvm_mips_map_page(struct kvm *kvm, gfn_t gfn) { @@ -191,7 +191,7 @@ unsigned long kvm_mips_translate_guest_kseg0_to_hpa(struct kvm_vcpu *vcpu, return (kvm->arch.guest_pmap[gfn] << PAGE_SHIFT) + offset; } -EXPORT_SYMBOL(kvm_mips_translate_guest_kseg0_to_hpa); +EXPORT_SYMBOL_GPL(kvm_mips_translate_guest_kseg0_to_hpa); /* XXXKYMA: Must be called with interrupts disabled */ /* set flush_dcache_mask == 0 if no dcache flush required */ @@ -308,7 +308,7 @@ int kvm_mips_handle_kseg0_tlb_fault(unsigned long badvaddr, return kvm_mips_host_tlb_write(vcpu, entryhi, entrylo0, entrylo1, flush_dcache_mask); } -EXPORT_SYMBOL(kvm_mips_handle_kseg0_tlb_fault); +EXPORT_SYMBOL_GPL(kvm_mips_handle_kseg0_tlb_fault); int kvm_mips_handle_commpage_tlb_fault(unsigned long badvaddr, struct kvm_vcpu *vcpu) @@ -351,7 +351,7 @@ int kvm_mips_handle_commpage_tlb_fault(unsigned long badvaddr, return 0; } -EXPORT_SYMBOL(kvm_mips_handle_commpage_tlb_fault); +EXPORT_SYMBOL_GPL(kvm_mips_handle_commpage_tlb_fault); int kvm_mips_handle_mapped_seg_tlb_fault(struct kvm_vcpu *vcpu, struct kvm_mips_tlb *tlb, @@ -401,7 +401,7 @@ int kvm_mips_handle_mapped_seg_tlb_fault(struct kvm_vcpu *vcpu, return kvm_mips_host_tlb_write(vcpu, entryhi, entrylo0, entrylo1, tlb->tlb_mask); } -EXPORT_SYMBOL(kvm_mips_handle_mapped_seg_tlb_fault); +EXPORT_SYMBOL_GPL(kvm_mips_handle_mapped_seg_tlb_fault); int kvm_mips_guest_tlb_lookup(struct kvm_vcpu *vcpu, unsigned long entryhi) { @@ -422,7 +422,7 @@ int kvm_mips_guest_tlb_lookup(struct kvm_vcpu *vcpu, unsigned long entryhi) return index; } -EXPORT_SYMBOL(kvm_mips_guest_tlb_lookup); +EXPORT_SYMBOL_GPL(kvm_mips_guest_tlb_lookup); int kvm_mips_host_tlb_lookup(struct kvm_vcpu *vcpu, unsigned long vaddr) { @@ -458,7 +458,7 @@ int kvm_mips_host_tlb_lookup(struct kvm_vcpu *vcpu, unsigned long vaddr) return idx; } -EXPORT_SYMBOL(kvm_mips_host_tlb_lookup); +EXPORT_SYMBOL_GPL(kvm_mips_host_tlb_lookup); int kvm_mips_host_tlb_inv(struct kvm_vcpu *vcpu, unsigned long va) { @@ -505,44 +505,7 @@ int kvm_mips_host_tlb_inv(struct kvm_vcpu *vcpu, unsigned long va) return 0; } -EXPORT_SYMBOL(kvm_mips_host_tlb_inv); - -/* XXXKYMA: Fix Guest USER/KERNEL no longer share the same ASID */ -int kvm_mips_host_tlb_inv_index(struct kvm_vcpu *vcpu, int index) -{ - unsigned long flags, old_entryhi; - - if (index >= current_cpu_data.tlbsize) - BUG(); - - local_irq_save(flags); - - old_entryhi = read_c0_entryhi(); - - write_c0_entryhi(UNIQUE_ENTRYHI(index)); - mtc0_tlbw_hazard(); - - write_c0_index(index); - mtc0_tlbw_hazard(); - - write_c0_entrylo0(0); - mtc0_tlbw_hazard(); - - write_c0_entrylo1(0); - mtc0_tlbw_hazard(); - - tlb_write_indexed(); - mtc0_tlbw_hazard(); - tlbw_use_hazard(); - - write_c0_entryhi(old_entryhi); - mtc0_tlbw_hazard(); - tlbw_use_hazard(); - - local_irq_restore(flags); - - return 0; -} +EXPORT_SYMBOL_GPL(kvm_mips_host_tlb_inv); void kvm_mips_flush_host_tlb(int skip_kseg0) { @@ -594,7 +557,7 @@ void kvm_mips_flush_host_tlb(int skip_kseg0) local_irq_restore(flags); } -EXPORT_SYMBOL(kvm_mips_flush_host_tlb); +EXPORT_SYMBOL_GPL(kvm_mips_flush_host_tlb); void kvm_get_new_mmu_context(struct mm_struct *mm, unsigned long cpu, struct kvm_vcpu *vcpu) @@ -642,7 +605,7 @@ void kvm_local_flush_tlb_all(void) local_irq_restore(flags); } -EXPORT_SYMBOL(kvm_local_flush_tlb_all); +EXPORT_SYMBOL_GPL(kvm_local_flush_tlb_all); /** * kvm_mips_migrate_count() - Migrate timer. @@ -673,8 +636,8 @@ void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu) local_irq_save(flags); - if (((vcpu->arch. - guest_kernel_asid[cpu] ^ asid_cache(cpu)) & ASID_VERSION_MASK)) { + if ((vcpu->arch.guest_kernel_asid[cpu] ^ asid_cache(cpu)) & + ASID_VERSION_MASK) { kvm_get_new_mmu_context(&vcpu->arch.guest_kernel_mm, cpu, vcpu); vcpu->arch.guest_kernel_asid[cpu] = vcpu->arch.guest_kernel_mm.context.asid[cpu]; @@ -739,7 +702,7 @@ void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu) local_irq_restore(flags); } -EXPORT_SYMBOL(kvm_arch_vcpu_load); +EXPORT_SYMBOL_GPL(kvm_arch_vcpu_load); /* ASID can change if another task is scheduled during preemption */ void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu) @@ -768,7 +731,7 @@ void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu) local_irq_restore(flags); } -EXPORT_SYMBOL(kvm_arch_vcpu_put); +EXPORT_SYMBOL_GPL(kvm_arch_vcpu_put); uint32_t kvm_get_inst(uint32_t *opc, struct kvm_vcpu *vcpu) { @@ -813,4 +776,4 @@ uint32_t kvm_get_inst(uint32_t *opc, struct kvm_vcpu *vcpu) return inst; } -EXPORT_SYMBOL(kvm_get_inst); +EXPORT_SYMBOL_GPL(kvm_get_inst); diff --git a/arch/mips/kvm/trap_emul.c b/arch/mips/kvm/trap_emul.c index d836ed5b0bc7..ad988000563f 100644 --- a/arch/mips/kvm/trap_emul.c +++ b/arch/mips/kvm/trap_emul.c @@ -16,7 +16,6 @@ #include <linux/kvm_host.h> -#include "opcode.h" #include "interrupt.h" static gpa_t kvm_trap_emul_gva_to_gpa_cb(gva_t gva) diff --git a/arch/mips/lib/mips-atomic.c b/arch/mips/lib/mips-atomic.c index 272af8ac2425..5530070e0d05 100644 --- a/arch/mips/lib/mips-atomic.c +++ b/arch/mips/lib/mips-atomic.c @@ -57,7 +57,6 @@ notrace void arch_local_irq_disable(void) } EXPORT_SYMBOL(arch_local_irq_disable); - notrace unsigned long arch_local_irq_save(void) { unsigned long flags; @@ -111,31 +110,4 @@ notrace void arch_local_irq_restore(unsigned long flags) } EXPORT_SYMBOL(arch_local_irq_restore); - -notrace void __arch_local_irq_restore(unsigned long flags) -{ - unsigned long __tmp1; - - preempt_disable(); - - __asm__ __volatile__( - " .set push \n" - " .set noreorder \n" - " .set noat \n" - " mfc0 $1, $12 \n" - " andi %[flags], 1 \n" - " ori $1, 0x1f \n" - " xori $1, 0x1f \n" - " or %[flags], $1 \n" - " mtc0 %[flags], $12 \n" - " " __stringify(__irq_disable_hazard) " \n" - " .set pop \n" - : [flags] "=r" (__tmp1) - : "0" (flags) - : "memory"); - - preempt_enable(); -} -EXPORT_SYMBOL(__arch_local_irq_restore); - -#endif /* !CONFIG_CPU_MIPSR2 */ +#endif /* !CONFIG_CPU_MIPSR2 && !CONFIG_CPU_MIPSR6 */ diff --git a/arch/mips/loongson64/Platform b/arch/mips/loongson64/Platform index 2e48e83d5524..85d808924c94 100644 --- a/arch/mips/loongson64/Platform +++ b/arch/mips/loongson64/Platform @@ -22,6 +22,27 @@ ifdef CONFIG_CPU_LOONGSON2F_WORKAROUNDS endif endif +cflags-$(CONFIG_CPU_LOONGSON3) += -Wa,--trap +# +# binutils from v2.25 on and gcc starting from v4.9.0 treat -march=loongson3a +# as MIPS64 R2; older versions as just R1. This leaves the possibility open +# that GCC might generate R2 code for -march=loongson3a which then is rejected +# by GAS. The cc-option can't probe for this behaviour so -march=loongson3a +# can't easily be used safely within the kbuild framework. +# +ifeq ($(call cc-ifversion, -ge, 0409, y), y) + ifeq ($(call ld-ifversion, -ge, 22500000, y), y) + cflags-$(CONFIG_CPU_LOONGSON3) += \ + $(call cc-option,-march=loongson3a -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS64) + else + cflags-$(CONFIG_CPU_LOONGSON3) += \ + $(call cc-option,-march=mips64r2,-mips64r2 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS64) + endif +else + cflags-$(CONFIG_CPU_LOONGSON3) += \ + $(call cc-option,-march=mips64r2,-mips64r2 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS64) +endif + # # Loongson Machines' Support # diff --git a/arch/mips/loongson64/loongson-3/hpet.c b/arch/mips/loongson64/loongson-3/hpet.c index bf9f1a77f0e5..a2631a52ca99 100644 --- a/arch/mips/loongson64/loongson-3/hpet.c +++ b/arch/mips/loongson64/loongson-3/hpet.c @@ -13,6 +13,9 @@ #define SMBUS_PCI_REG64 0x64 #define SMBUS_PCI_REGB4 0xb4 +#define HPET_MIN_CYCLES 64 +#define HPET_MIN_PROG_DELTA (HPET_MIN_CYCLES + (HPET_MIN_CYCLES >> 1)) + static DEFINE_SPINLOCK(hpet_lock); DEFINE_PER_CPU(struct clock_event_device, hpet_clockevent_device); @@ -161,8 +164,9 @@ static int hpet_next_event(unsigned long delta, cnt += delta; hpet_write(HPET_T0_CMP, cnt); - res = ((int)(hpet_read(HPET_COUNTER) - cnt) > 0) ? -ETIME : 0; - return res; + res = (int)(cnt - hpet_read(HPET_COUNTER)); + + return res < HPET_MIN_CYCLES ? -ETIME : 0; } static irqreturn_t hpet_irq_handler(int irq, void *data) @@ -237,7 +241,7 @@ void __init setup_hpet_timer(void) cd->cpumask = cpumask_of(cpu); clockevent_set_clock(cd, HPET_FREQ); cd->max_delta_ns = clockevent_delta2ns(0x7fffffff, cd); - cd->min_delta_ns = 5000; + cd->min_delta_ns = clockevent_delta2ns(HPET_MIN_PROG_DELTA, cd); clockevents_register_device(cd); setup_irq(HPET_T0_IRQ, &hpet_irq); diff --git a/arch/mips/loongson64/loongson-3/smp.c b/arch/mips/loongson64/loongson-3/smp.c index 1a4738a8f2d3..509832a9836c 100644 --- a/arch/mips/loongson64/loongson-3/smp.c +++ b/arch/mips/loongson64/loongson-3/smp.c @@ -30,13 +30,13 @@ #include "smp.h" DEFINE_PER_CPU(int, cpu_state); -DEFINE_PER_CPU(uint32_t, core0_c0count); static void *ipi_set0_regs[16]; static void *ipi_clear0_regs[16]; static void *ipi_status0_regs[16]; static void *ipi_en0_regs[16]; static void *ipi_mailbox_buf[16]; +static uint32_t core0_c0count[NR_CPUS]; /* read a 32bit value from ipi register */ #define loongson3_ipi_read32(addr) readl(addr) @@ -275,12 +275,14 @@ void loongson3_ipi_interrupt(struct pt_regs *regs) if (action & SMP_ASK_C0COUNT) { BUG_ON(cpu != 0); c0count = read_c0_count(); - for (i = 1; i < num_possible_cpus(); i++) - per_cpu(core0_c0count, i) = c0count; + c0count = c0count ? c0count : 1; + for (i = 1; i < nr_cpu_ids; i++) + core0_c0count[i] = c0count; + __wbflush(); /* Let others see the result ASAP */ } } -#define MAX_LOOPS 1111 +#define MAX_LOOPS 800 /* * SMP init and finish on secondary CPUs */ @@ -305,16 +307,20 @@ static void loongson3_init_secondary(void) cpu_logical_map(cpu) / loongson_sysconf.cores_per_package; i = 0; - __this_cpu_write(core0_c0count, 0); + core0_c0count[cpu] = 0; loongson3_send_ipi_single(0, SMP_ASK_C0COUNT); - while (!__this_cpu_read(core0_c0count)) { + while (!core0_c0count[cpu]) { i++; cpu_relax(); } if (i > MAX_LOOPS) i = MAX_LOOPS; - initcount = __this_cpu_read(core0_c0count) + i; + if (cpu_data[cpu].package) + initcount = core0_c0count[cpu] + i; + else /* Local access is faster for loops */ + initcount = core0_c0count[cpu] + i/2; + write_c0_count(initcount); } diff --git a/arch/mips/math-emu/cp1emu.c b/arch/mips/math-emu/cp1emu.c index 32f0e19a0d7f..cdfd44ffa51c 100644 --- a/arch/mips/math-emu/cp1emu.c +++ b/arch/mips/math-emu/cp1emu.c @@ -1266,6 +1266,8 @@ branch_common: */ sig = mips_dsemul(xcp, ir, contpc); + if (sig < 0) + break; if (sig) xcp->cp0_epc = bcpc; /* @@ -1319,6 +1321,8 @@ branch_common: * instruction in the dslot */ sig = mips_dsemul(xcp, ir, contpc); + if (sig < 0) + break; if (sig) xcp->cp0_epc = bcpc; /* SIGILL forces out of the emulation loop. */ diff --git a/arch/mips/math-emu/dp_simple.c b/arch/mips/math-emu/dp_simple.c index 926d56bf37f2..eb96485ed939 100644 --- a/arch/mips/math-emu/dp_simple.c +++ b/arch/mips/math-emu/dp_simple.c @@ -23,27 +23,39 @@ union ieee754dp ieee754dp_neg(union ieee754dp x) { - unsigned int oldrm; union ieee754dp y; - oldrm = ieee754_csr.rm; - ieee754_csr.rm = FPU_CSR_RD; - y = ieee754dp_sub(ieee754dp_zero(0), x); - ieee754_csr.rm = oldrm; + if (ieee754_csr.abs2008) { + y = x; + DPSIGN(y) = !DPSIGN(x); + } else { + unsigned int oldrm; + + oldrm = ieee754_csr.rm; + ieee754_csr.rm = FPU_CSR_RD; + y = ieee754dp_sub(ieee754dp_zero(0), x); + ieee754_csr.rm = oldrm; + } return y; } union ieee754dp ieee754dp_abs(union ieee754dp x) { - unsigned int oldrm; union ieee754dp y; - oldrm = ieee754_csr.rm; - ieee754_csr.rm = FPU_CSR_RD; - if (DPSIGN(x)) - y = ieee754dp_sub(ieee754dp_zero(0), x); - else - y = ieee754dp_add(ieee754dp_zero(0), x); - ieee754_csr.rm = oldrm; + if (ieee754_csr.abs2008) { + y = x; + DPSIGN(y) = 0; + } else { + unsigned int oldrm; + + oldrm = ieee754_csr.rm; + ieee754_csr.rm = FPU_CSR_RD; + if (DPSIGN(x)) + y = ieee754dp_sub(ieee754dp_zero(0), x); + else + y = ieee754dp_add(ieee754dp_zero(0), x); + ieee754_csr.rm = oldrm; + } return y; } diff --git a/arch/mips/math-emu/dp_tint.c b/arch/mips/math-emu/dp_tint.c index 6ffc336c530e..f3985617ce31 100644 --- a/arch/mips/math-emu/dp_tint.c +++ b/arch/mips/math-emu/dp_tint.c @@ -38,10 +38,13 @@ int ieee754dp_tint(union ieee754dp x) switch (xc) { case IEEE754_CLASS_SNAN: case IEEE754_CLASS_QNAN: - case IEEE754_CLASS_INF: ieee754_setcx(IEEE754_INVALID_OPERATION); return ieee754si_indef(); + case IEEE754_CLASS_INF: + ieee754_setcx(IEEE754_INVALID_OPERATION); + return ieee754si_overflow(xs); + case IEEE754_CLASS_ZERO: return 0; @@ -53,7 +56,7 @@ int ieee754dp_tint(union ieee754dp x) /* Set invalid. We will only use overflow for floating point overflow */ ieee754_setcx(IEEE754_INVALID_OPERATION); - return ieee754si_indef(); + return ieee754si_overflow(xs); } /* oh gawd */ if (xe > DP_FBITS) { @@ -93,7 +96,7 @@ int ieee754dp_tint(union ieee754dp x) if ((xm >> 31) != 0 && (xs == 0 || xm != 0x80000000)) { /* This can happen after rounding */ ieee754_setcx(IEEE754_INVALID_OPERATION); - return ieee754si_indef(); + return ieee754si_overflow(xs); } if (round || sticky) ieee754_setcx(IEEE754_INEXACT); diff --git a/arch/mips/math-emu/dp_tlong.c b/arch/mips/math-emu/dp_tlong.c index 9cdc145b75e0..748fa10ed4cf 100644 --- a/arch/mips/math-emu/dp_tlong.c +++ b/arch/mips/math-emu/dp_tlong.c @@ -38,10 +38,13 @@ s64 ieee754dp_tlong(union ieee754dp x) switch (xc) { case IEEE754_CLASS_SNAN: case IEEE754_CLASS_QNAN: - case IEEE754_CLASS_INF: ieee754_setcx(IEEE754_INVALID_OPERATION); return ieee754di_indef(); + case IEEE754_CLASS_INF: + ieee754_setcx(IEEE754_INVALID_OPERATION); + return ieee754di_overflow(xs); + case IEEE754_CLASS_ZERO: return 0; @@ -56,7 +59,7 @@ s64 ieee754dp_tlong(union ieee754dp x) /* Set invalid. We will only use overflow for floating point overflow */ ieee754_setcx(IEEE754_INVALID_OPERATION); - return ieee754di_indef(); + return ieee754di_overflow(xs); } /* oh gawd */ if (xe > DP_FBITS) { @@ -97,7 +100,7 @@ s64 ieee754dp_tlong(union ieee754dp x) if ((xm >> 63) != 0) { /* This can happen after rounding */ ieee754_setcx(IEEE754_INVALID_OPERATION); - return ieee754di_indef(); + return ieee754di_overflow(xs); } if (round || sticky) ieee754_setcx(IEEE754_INEXACT); diff --git a/arch/mips/math-emu/dsemul.c b/arch/mips/math-emu/dsemul.c index cbb36c14b155..46b964d2b79c 100644 --- a/arch/mips/math-emu/dsemul.c +++ b/arch/mips/math-emu/dsemul.c @@ -31,17 +31,41 @@ struct emuframe { unsigned long epc; }; +/* + * Set up an emulation frame for instruction IR, from a delay slot of + * a branch jumping to CPC. Return 0 if successful, -1 if no emulation + * required, otherwise a signal number causing a frame setup failure. + */ int mips_dsemul(struct pt_regs *regs, mips_instruction ir, unsigned long cpc) { + int isa16 = get_isa16_mode(regs->cp0_epc); + mips_instruction break_math; struct emuframe __user *fr; int err; - if ((get_isa16_mode(regs->cp0_epc) && ((ir >> 16) == MM_NOP16)) || - (ir == 0)) { - /* NOP is easy */ - regs->cp0_epc = cpc; - clear_delay_slot(regs); - return 0; + /* NOP is easy */ + if (ir == 0) + return -1; + + /* microMIPS instructions */ + if (isa16) { + union mips_instruction insn = { .word = ir }; + + /* NOP16 aka MOVE16 $0, $0 */ + if ((ir >> 16) == MM_NOP16) + return -1; + + /* ADDIUPC */ + if (insn.mm_a_format.opcode == mm_addiupc_op) { + unsigned int rs; + s32 v; + + rs = (((insn.mm_a_format.rs + 0x1e) & 0xf) + 2); + v = regs->cp0_epc & ~3; + v += insn.mm_a_format.simmediate << 2; + regs->regs[rs] = (long)v; + return -1; + } } pr_debug("dsemul %lx %lx\n", regs->cp0_epc, cpc); @@ -55,14 +79,10 @@ int mips_dsemul(struct pt_regs *regs, mips_instruction ir, unsigned long cpc) * Algorithmics used a system call instruction, and * borrowed that vector. MIPS/Linux version is a bit * more heavyweight in the interests of portability and - * multiprocessor support. For Linux we generate a - * an unaligned access and force an address error exception. - * - * For embedded systems (stand-alone) we prefer to use a - * non-existing CP1 instruction. This prevents us from emulating - * branches, but gives us a cleaner interface to the exception - * handler (single entry point). + * multiprocessor support. For Linux we use a BREAK 514 + * instruction causing a breakpoint exception. */ + break_math = BREAK_MATH(isa16); /* Ensure that the two instructions are in the same cache line */ fr = (struct emuframe __user *) @@ -72,14 +92,18 @@ int mips_dsemul(struct pt_regs *regs, mips_instruction ir, unsigned long cpc) if (unlikely(!access_ok(VERIFY_WRITE, fr, sizeof(struct emuframe)))) return SIGBUS; - if (get_isa16_mode(regs->cp0_epc)) { - err = __put_user(ir >> 16, (u16 __user *)(&fr->emul)); - err |= __put_user(ir & 0xffff, (u16 __user *)((long)(&fr->emul) + 2)); - err |= __put_user(BREAK_MATH >> 16, (u16 __user *)(&fr->badinst)); - err |= __put_user(BREAK_MATH & 0xffff, (u16 __user *)((long)(&fr->badinst) + 2)); + if (isa16) { + err = __put_user(ir >> 16, + (u16 __user *)(&fr->emul)); + err |= __put_user(ir & 0xffff, + (u16 __user *)((long)(&fr->emul) + 2)); + err |= __put_user(break_math >> 16, + (u16 __user *)(&fr->badinst)); + err |= __put_user(break_math & 0xffff, + (u16 __user *)((long)(&fr->badinst) + 2)); } else { err = __put_user(ir, &fr->emul); - err |= __put_user((mips_instruction)BREAK_MATH, &fr->badinst); + err |= __put_user(break_math, &fr->badinst); } err |= __put_user((mips_instruction)BD_COOKIE, &fr->cookie); @@ -90,8 +114,7 @@ int mips_dsemul(struct pt_regs *regs, mips_instruction ir, unsigned long cpc) return SIGBUS; } - regs->cp0_epc = ((unsigned long) &fr->emul) | - get_isa16_mode(regs->cp0_epc); + regs->cp0_epc = (unsigned long)&fr->emul | isa16; flush_cache_sigtramp((unsigned long)&fr->emul); @@ -100,6 +123,7 @@ int mips_dsemul(struct pt_regs *regs, mips_instruction ir, unsigned long cpc) int do_dsemulret(struct pt_regs *xcp) { + int isa16 = get_isa16_mode(xcp->cp0_epc); struct emuframe __user *fr; unsigned long epc; u32 insn, cookie; @@ -122,16 +146,19 @@ int do_dsemulret(struct pt_regs *xcp) * - Is the instruction pointed to by the EPC an BREAK_MATH? * - Is the following memory word the BD_COOKIE? */ - if (get_isa16_mode(xcp->cp0_epc)) { - err = __get_user(instr[0], (u16 __user *)(&fr->badinst)); - err |= __get_user(instr[1], (u16 __user *)((long)(&fr->badinst) + 2)); + if (isa16) { + err = __get_user(instr[0], + (u16 __user *)(&fr->badinst)); + err |= __get_user(instr[1], + (u16 __user *)((long)(&fr->badinst) + 2)); insn = (instr[0] << 16) | instr[1]; } else { err = __get_user(insn, &fr->badinst); } err |= __get_user(cookie, &fr->cookie); - if (unlikely(err || (insn != BREAK_MATH) || (cookie != BD_COOKIE))) { + if (unlikely(err || + insn != BREAK_MATH(isa16) || cookie != BD_COOKIE)) { MIPS_FPU_EMU_INC_STATS(errors); return 0; } diff --git a/arch/mips/math-emu/ieee754.c b/arch/mips/math-emu/ieee754.c index 8e97acbbe22c..e16ae7b75dbb 100644 --- a/arch/mips/math-emu/ieee754.c +++ b/arch/mips/math-emu/ieee754.c @@ -59,7 +59,8 @@ const union ieee754dp __ieee754dp_spcvals[] = { DPCNST(1, 3, 0x4000000000000ULL), /* - 10.0 */ DPCNST(0, DP_EMAX + 1, 0x0000000000000ULL), /* + infinity */ DPCNST(1, DP_EMAX + 1, 0x0000000000000ULL), /* - infinity */ - DPCNST(0, DP_EMAX + 1, 0x7FFFFFFFFFFFFULL), /* + indef quiet Nan */ + DPCNST(0, DP_EMAX + 1, 0x7FFFFFFFFFFFFULL), /* + ind legacy qNaN */ + DPCNST(0, DP_EMAX + 1, 0x8000000000000ULL), /* + indef 2008 qNaN */ DPCNST(0, DP_EMAX, 0xFFFFFFFFFFFFFULL), /* + max */ DPCNST(1, DP_EMAX, 0xFFFFFFFFFFFFFULL), /* - max */ DPCNST(0, DP_EMIN, 0x0000000000000ULL), /* + min normal */ @@ -82,7 +83,8 @@ const union ieee754sp __ieee754sp_spcvals[] = { SPCNST(1, 3, 0x200000), /* - 10.0 */ SPCNST(0, SP_EMAX + 1, 0x000000), /* + infinity */ SPCNST(1, SP_EMAX + 1, 0x000000), /* - infinity */ - SPCNST(0, SP_EMAX + 1, 0x3FFFFF), /* + indef quiet Nan */ + SPCNST(0, SP_EMAX + 1, 0x3FFFFF), /* + indef legacy quiet NaN */ + SPCNST(0, SP_EMAX + 1, 0x400000), /* + indef 2008 quiet NaN */ SPCNST(0, SP_EMAX, 0x7FFFFF), /* + max normal */ SPCNST(1, SP_EMAX, 0x7FFFFF), /* - max normal */ SPCNST(0, SP_EMIN, 0x000000), /* + min normal */ diff --git a/arch/mips/math-emu/ieee754.h b/arch/mips/math-emu/ieee754.h index df94720714c7..d3be351aed15 100644 --- a/arch/mips/math-emu/ieee754.h +++ b/arch/mips/math-emu/ieee754.h @@ -221,15 +221,16 @@ union ieee754dp ieee754dp_dump(char *s, union ieee754dp x); #define IEEE754_SPCVAL_NTEN 5 /* -10.0 */ #define IEEE754_SPCVAL_PINFINITY 6 /* +inf */ #define IEEE754_SPCVAL_NINFINITY 7 /* -inf */ -#define IEEE754_SPCVAL_INDEF 8 /* quiet NaN */ -#define IEEE754_SPCVAL_PMAX 9 /* +max norm */ -#define IEEE754_SPCVAL_NMAX 10 /* -max norm */ -#define IEEE754_SPCVAL_PMIN 11 /* +min norm */ -#define IEEE754_SPCVAL_NMIN 12 /* -min norm */ -#define IEEE754_SPCVAL_PMIND 13 /* +min denorm */ -#define IEEE754_SPCVAL_NMIND 14 /* -min denorm */ -#define IEEE754_SPCVAL_P1E31 15 /* + 1.0e31 */ -#define IEEE754_SPCVAL_P1E63 16 /* + 1.0e63 */ +#define IEEE754_SPCVAL_INDEF_LEG 8 /* legacy quiet NaN */ +#define IEEE754_SPCVAL_INDEF_2008 9 /* IEEE 754-2008 quiet NaN */ +#define IEEE754_SPCVAL_PMAX 10 /* +max norm */ +#define IEEE754_SPCVAL_NMAX 11 /* -max norm */ +#define IEEE754_SPCVAL_PMIN 12 /* +min norm */ +#define IEEE754_SPCVAL_NMIN 13 /* -min norm */ +#define IEEE754_SPCVAL_PMIND 14 /* +min denorm */ +#define IEEE754_SPCVAL_NMIND 15 /* -min denorm */ +#define IEEE754_SPCVAL_P1E31 16 /* + 1.0e31 */ +#define IEEE754_SPCVAL_P1E63 17 /* + 1.0e63 */ extern const union ieee754dp __ieee754dp_spcvals[]; extern const union ieee754sp __ieee754sp_spcvals[]; @@ -243,7 +244,8 @@ extern const union ieee754sp __ieee754sp_spcvals[]; #define ieee754dp_zero(sn) (ieee754dp_spcvals[IEEE754_SPCVAL_PZERO+(sn)]) #define ieee754dp_one(sn) (ieee754dp_spcvals[IEEE754_SPCVAL_PONE+(sn)]) #define ieee754dp_ten(sn) (ieee754dp_spcvals[IEEE754_SPCVAL_PTEN+(sn)]) -#define ieee754dp_indef() (ieee754dp_spcvals[IEEE754_SPCVAL_INDEF]) +#define ieee754dp_indef() (ieee754dp_spcvals[IEEE754_SPCVAL_INDEF_LEG + \ + ieee754_csr.nan2008]) #define ieee754dp_max(sn) (ieee754dp_spcvals[IEEE754_SPCVAL_PMAX+(sn)]) #define ieee754dp_min(sn) (ieee754dp_spcvals[IEEE754_SPCVAL_PMIN+(sn)]) #define ieee754dp_mind(sn) (ieee754dp_spcvals[IEEE754_SPCVAL_PMIND+(sn)]) @@ -254,7 +256,8 @@ extern const union ieee754sp __ieee754sp_spcvals[]; #define ieee754sp_zero(sn) (ieee754sp_spcvals[IEEE754_SPCVAL_PZERO+(sn)]) #define ieee754sp_one(sn) (ieee754sp_spcvals[IEEE754_SPCVAL_PONE+(sn)]) #define ieee754sp_ten(sn) (ieee754sp_spcvals[IEEE754_SPCVAL_PTEN+(sn)]) -#define ieee754sp_indef() (ieee754sp_spcvals[IEEE754_SPCVAL_INDEF]) +#define ieee754sp_indef() (ieee754sp_spcvals[IEEE754_SPCVAL_INDEF_LEG + \ + ieee754_csr.nan2008]) #define ieee754sp_max(sn) (ieee754sp_spcvals[IEEE754_SPCVAL_PMAX+(sn)]) #define ieee754sp_min(sn) (ieee754sp_spcvals[IEEE754_SPCVAL_PMIN+(sn)]) #define ieee754sp_mind(sn) (ieee754sp_spcvals[IEEE754_SPCVAL_PMIND+(sn)]) @@ -266,12 +269,25 @@ extern const union ieee754sp __ieee754sp_spcvals[]; */ static inline int ieee754si_indef(void) { - return INT_MAX; + return ieee754_csr.nan2008 ? 0 : INT_MAX; } static inline s64 ieee754di_indef(void) { - return S64_MAX; + return ieee754_csr.nan2008 ? 0 : S64_MAX; +} + +/* + * Overflow integer value + */ +static inline int ieee754si_overflow(int xs) +{ + return ieee754_csr.nan2008 && xs ? INT_MIN : INT_MAX; +} + +static inline s64 ieee754di_overflow(int xs) +{ + return ieee754_csr.nan2008 && xs ? S64_MIN : S64_MAX; } /* result types for xctx.rt */ diff --git a/arch/mips/math-emu/ieee754dp.c b/arch/mips/math-emu/ieee754dp.c index 522d843f2ffd..ad3c73436777 100644 --- a/arch/mips/math-emu/ieee754dp.c +++ b/arch/mips/math-emu/ieee754dp.c @@ -37,8 +37,11 @@ static inline int ieee754dp_isnan(union ieee754dp x) static inline int ieee754dp_issnan(union ieee754dp x) { + int qbit; + assert(ieee754dp_isnan(x)); - return (DPMANT(x) & DP_MBIT(DP_FBITS - 1)) == DP_MBIT(DP_FBITS - 1); + qbit = (DPMANT(x) & DP_MBIT(DP_FBITS - 1)) == DP_MBIT(DP_FBITS - 1); + return ieee754_csr.nan2008 ^ qbit; } @@ -51,7 +54,12 @@ union ieee754dp __cold ieee754dp_nanxcpt(union ieee754dp r) assert(ieee754dp_issnan(r)); ieee754_setcx(IEEE754_INVALID_OPERATION); - return ieee754dp_indef(); + if (ieee754_csr.nan2008) + DPMANT(r) |= DP_MBIT(DP_FBITS - 1); + else + r = ieee754dp_indef(); + + return r; } static u64 ieee754dp_get_rounding(int sn, u64 xm) diff --git a/arch/mips/math-emu/ieee754int.h b/arch/mips/math-emu/ieee754int.h index 6383e2c5c1ad..ed7bb277b3e0 100644 --- a/arch/mips/math-emu/ieee754int.h +++ b/arch/mips/math-emu/ieee754int.h @@ -63,10 +63,10 @@ static inline int ieee754_class_nan(int xc) if (ve == SP_EMAX+1+SP_EBIAS) { \ if (vm == 0) \ vc = IEEE754_CLASS_INF; \ - else if (vm & SP_MBIT(SP_FBITS-1)) \ - vc = IEEE754_CLASS_SNAN; \ - else \ + else if (ieee754_csr.nan2008 ^ !(vm & SP_MBIT(SP_FBITS - 1))) \ vc = IEEE754_CLASS_QNAN; \ + else \ + vc = IEEE754_CLASS_SNAN; \ } else if (ve == SP_EMIN-1+SP_EBIAS) { \ if (vm) { \ ve = SP_EMIN; \ @@ -97,10 +97,10 @@ static inline int ieee754_class_nan(int xc) if (ve == DP_EMAX+1+DP_EBIAS) { \ if (vm == 0) \ vc = IEEE754_CLASS_INF; \ - else if (vm & DP_MBIT(DP_FBITS-1)) \ - vc = IEEE754_CLASS_SNAN; \ - else \ + else if (ieee754_csr.nan2008 ^ !(vm & DP_MBIT(DP_FBITS - 1))) \ vc = IEEE754_CLASS_QNAN; \ + else \ + vc = IEEE754_CLASS_SNAN; \ } else if (ve == DP_EMIN-1+DP_EBIAS) { \ if (vm) { \ ve = DP_EMIN; \ diff --git a/arch/mips/math-emu/ieee754sp.c b/arch/mips/math-emu/ieee754sp.c index ca8e35e33bf7..def00ffc50fc 100644 --- a/arch/mips/math-emu/ieee754sp.c +++ b/arch/mips/math-emu/ieee754sp.c @@ -37,8 +37,11 @@ static inline int ieee754sp_isnan(union ieee754sp x) static inline int ieee754sp_issnan(union ieee754sp x) { + int qbit; + assert(ieee754sp_isnan(x)); - return SPMANT(x) & SP_MBIT(SP_FBITS - 1); + qbit = (SPMANT(x) & SP_MBIT(SP_FBITS - 1)) == SP_MBIT(SP_FBITS - 1); + return ieee754_csr.nan2008 ^ qbit; } @@ -51,7 +54,12 @@ union ieee754sp __cold ieee754sp_nanxcpt(union ieee754sp r) assert(ieee754sp_issnan(r)); ieee754_setcx(IEEE754_INVALID_OPERATION); - return ieee754sp_indef(); + if (ieee754_csr.nan2008) + SPMANT(r) |= SP_MBIT(SP_FBITS - 1); + else + r = ieee754sp_indef(); + + return r; } static unsigned ieee754sp_get_rounding(int sn, unsigned xm) diff --git a/arch/mips/math-emu/sp_fdp.c b/arch/mips/math-emu/sp_fdp.c index 3797148893ad..5060e8fdcb0b 100644 --- a/arch/mips/math-emu/sp_fdp.c +++ b/arch/mips/math-emu/sp_fdp.c @@ -44,13 +44,16 @@ union ieee754sp ieee754sp_fdp(union ieee754dp x) switch (xc) { case IEEE754_CLASS_SNAN: - return ieee754sp_nanxcpt(ieee754sp_nan_fdp(xs, xm)); - + x = ieee754dp_nanxcpt(x); + EXPLODEXDP; + /* Fall through. */ case IEEE754_CLASS_QNAN: y = ieee754sp_nan_fdp(xs, xm); - EXPLODEYSP; - if (!ieee754_class_nan(yc)) - y = ieee754sp_indef(); + if (!ieee754_csr.nan2008) { + EXPLODEYSP; + if (!ieee754_class_nan(yc)) + y = ieee754sp_indef(); + } return y; case IEEE754_CLASS_INF: diff --git a/arch/mips/math-emu/sp_simple.c b/arch/mips/math-emu/sp_simple.c index c50e9451f2d2..756c9cf2dfd2 100644 --- a/arch/mips/math-emu/sp_simple.c +++ b/arch/mips/math-emu/sp_simple.c @@ -23,27 +23,39 @@ union ieee754sp ieee754sp_neg(union ieee754sp x) { - unsigned int oldrm; union ieee754sp y; - oldrm = ieee754_csr.rm; - ieee754_csr.rm = FPU_CSR_RD; - y = ieee754sp_sub(ieee754sp_zero(0), x); - ieee754_csr.rm = oldrm; + if (ieee754_csr.abs2008) { + y = x; + SPSIGN(y) = !SPSIGN(x); + } else { + unsigned int oldrm; + + oldrm = ieee754_csr.rm; + ieee754_csr.rm = FPU_CSR_RD; + y = ieee754sp_sub(ieee754sp_zero(0), x); + ieee754_csr.rm = oldrm; + } return y; } union ieee754sp ieee754sp_abs(union ieee754sp x) { - unsigned int oldrm; union ieee754sp y; - oldrm = ieee754_csr.rm; - ieee754_csr.rm = FPU_CSR_RD; - if (SPSIGN(x)) - y = ieee754sp_sub(ieee754sp_zero(0), x); - else - y = ieee754sp_add(ieee754sp_zero(0), x); - ieee754_csr.rm = oldrm; + if (ieee754_csr.abs2008) { + y = x; + SPSIGN(y) = 0; + } else { + unsigned int oldrm; + + oldrm = ieee754_csr.rm; + ieee754_csr.rm = FPU_CSR_RD; + if (SPSIGN(x)) + y = ieee754sp_sub(ieee754sp_zero(0), x); + else + y = ieee754sp_add(ieee754sp_zero(0), x); + ieee754_csr.rm = oldrm; + } return y; } diff --git a/arch/mips/math-emu/sp_tint.c b/arch/mips/math-emu/sp_tint.c index 091299a31798..f4b4cabfe2e1 100644 --- a/arch/mips/math-emu/sp_tint.c +++ b/arch/mips/math-emu/sp_tint.c @@ -38,10 +38,13 @@ int ieee754sp_tint(union ieee754sp x) switch (xc) { case IEEE754_CLASS_SNAN: case IEEE754_CLASS_QNAN: - case IEEE754_CLASS_INF: ieee754_setcx(IEEE754_INVALID_OPERATION); return ieee754si_indef(); + case IEEE754_CLASS_INF: + ieee754_setcx(IEEE754_INVALID_OPERATION); + return ieee754si_overflow(xs); + case IEEE754_CLASS_ZERO: return 0; @@ -56,7 +59,7 @@ int ieee754sp_tint(union ieee754sp x) /* Set invalid. We will only use overflow for floating point overflow */ ieee754_setcx(IEEE754_INVALID_OPERATION); - return ieee754si_indef(); + return ieee754si_overflow(xs); } /* oh gawd */ if (xe > SP_FBITS) { @@ -97,7 +100,7 @@ int ieee754sp_tint(union ieee754sp x) if ((xm >> 31) != 0) { /* This can happen after rounding */ ieee754_setcx(IEEE754_INVALID_OPERATION); - return ieee754si_indef(); + return ieee754si_overflow(xs); } if (round || sticky) ieee754_setcx(IEEE754_INEXACT); diff --git a/arch/mips/math-emu/sp_tlong.c b/arch/mips/math-emu/sp_tlong.c index 9f3c742c1cea..a2450c7e452a 100644 --- a/arch/mips/math-emu/sp_tlong.c +++ b/arch/mips/math-emu/sp_tlong.c @@ -39,10 +39,13 @@ s64 ieee754sp_tlong(union ieee754sp x) switch (xc) { case IEEE754_CLASS_SNAN: case IEEE754_CLASS_QNAN: - case IEEE754_CLASS_INF: ieee754_setcx(IEEE754_INVALID_OPERATION); return ieee754di_indef(); + case IEEE754_CLASS_INF: + ieee754_setcx(IEEE754_INVALID_OPERATION); + return ieee754di_overflow(xs); + case IEEE754_CLASS_ZERO: return 0; @@ -57,7 +60,7 @@ s64 ieee754sp_tlong(union ieee754sp x) /* Set invalid. We will only use overflow for floating point overflow */ ieee754_setcx(IEEE754_INVALID_OPERATION); - return ieee754di_indef(); + return ieee754di_overflow(xs); } /* oh gawd */ if (xe > SP_FBITS) { @@ -94,7 +97,7 @@ s64 ieee754sp_tlong(union ieee754sp x) if ((xm >> 63) != 0) { /* This can happen after rounding */ ieee754_setcx(IEEE754_INVALID_OPERATION); - return ieee754di_indef(); + return ieee754di_overflow(xs); } if (round || sticky) ieee754_setcx(IEEE754_INEXACT); diff --git a/arch/mips/mm/tlbex.c b/arch/mips/mm/tlbex.c index 482192cc8f2b..5a04b6f5c6fb 100644 --- a/arch/mips/mm/tlbex.c +++ b/arch/mips/mm/tlbex.c @@ -241,7 +241,7 @@ static void output_pgtable_bits_defines(void) #ifdef CONFIG_MIPS_HUGE_TLB_SUPPORT pr_define("_PAGE_HUGE_SHIFT %d\n", _PAGE_HUGE_SHIFT); #endif -#ifdef CONFIG_CPU_MIPSR2 +#if defined(CONFIG_CPU_MIPSR2) || defined(CONFIG_CPU_MIPSR6) if (cpu_has_rixi) { #ifdef _PAGE_NO_EXEC_SHIFT pr_define("_PAGE_NO_EXEC_SHIFT %d\n", _PAGE_NO_EXEC_SHIFT); diff --git a/arch/mips/pci/Makefile b/arch/mips/pci/Makefile index 2eda01e6e08f..139ad1d7ab5e 100644 --- a/arch/mips/pci/Makefile +++ b/arch/mips/pci/Makefile @@ -43,6 +43,7 @@ obj-$(CONFIG_SIBYTE_BCM1x80) += pci-bcm1480.o pci-bcm1480ht.o obj-$(CONFIG_SNI_RM) += fixup-sni.o ops-sni.o obj-$(CONFIG_LANTIQ) += fixup-lantiq.o obj-$(CONFIG_PCI_LANTIQ) += pci-lantiq.o ops-lantiq.o +obj-$(CONFIG_SOC_MT7620) += pci-mt7620.o obj-$(CONFIG_SOC_RT288X) += pci-rt2880.o obj-$(CONFIG_SOC_RT3883) += pci-rt3883.o obj-$(CONFIG_TANBAC_TB0219) += fixup-tb0219.o diff --git a/arch/mips/pci/pci-mt7620.c b/arch/mips/pci/pci-mt7620.c new file mode 100644 index 000000000000..a009ee458934 --- /dev/null +++ b/arch/mips/pci/pci-mt7620.c @@ -0,0 +1,426 @@ +/* + * Ralink MT7620A SoC PCI support + * + * Copyright (C) 2007-2013 Bruce Chang (Mediatek) + * Copyright (C) 2013-2016 John Crispin <blogic@openwrt.org> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + */ + +#include <linux/types.h> +#include <linux/pci.h> +#include <linux/io.h> +#include <linux/init.h> +#include <linux/delay.h> +#include <linux/interrupt.h> +#include <linux/module.h> +#include <linux/of.h> +#include <linux/of_irq.h> +#include <linux/of_pci.h> +#include <linux/reset.h> +#include <linux/platform_device.h> + +#include <asm/mach-ralink/ralink_regs.h> +#include <asm/mach-ralink/mt7620.h> + +#define RALINK_PCI_IO_MAP_BASE 0x10160000 +#define RALINK_PCI_MEMORY_BASE 0x0 + +#define RALINK_INT_PCIE0 4 + +#define RALINK_CLKCFG1 0x30 +#define RALINK_GPIOMODE 0x60 + +#define PPLL_CFG1 0x9c +#define PDRV_SW_SET BIT(23) + +#define PPLL_DRV 0xa0 +#define PDRV_SW_SET (1<<31) +#define LC_CKDRVPD (1<<19) +#define LC_CKDRVOHZ (1<<18) +#define LC_CKDRVHZ (1<<17) +#define LC_CKTEST (1<<16) + +/* PCI Bridge registers */ +#define RALINK_PCI_PCICFG_ADDR 0x00 +#define PCIRST BIT(1) + +#define RALINK_PCI_PCIENA 0x0C +#define PCIINT2 BIT(20) + +#define RALINK_PCI_CONFIG_ADDR 0x20 +#define RALINK_PCI_CONFIG_DATA_VIRT_REG 0x24 +#define RALINK_PCI_MEMBASE 0x28 +#define RALINK_PCI_IOBASE 0x2C + +/* PCI RC registers */ +#define RALINK_PCI0_BAR0SETUP_ADDR 0x10 +#define RALINK_PCI0_IMBASEBAR0_ADDR 0x18 +#define RALINK_PCI0_ID 0x30 +#define RALINK_PCI0_CLASS 0x34 +#define RALINK_PCI0_SUBID 0x38 +#define RALINK_PCI0_STATUS 0x50 +#define PCIE_LINK_UP_ST BIT(0) + +#define PCIEPHY0_CFG 0x90 + +#define RALINK_PCIEPHY_P0_CTL_OFFSET 0x7498 +#define RALINK_PCIE0_CLK_EN (1 << 26) + +#define BUSY 0x80000000 +#define WAITRETRY_MAX 10 +#define WRITE_MODE (1UL << 23) +#define DATA_SHIFT 0 +#define ADDR_SHIFT 8 + + +static void __iomem *bridge_base; +static void __iomem *pcie_base; + +static struct reset_control *rstpcie0; + +static inline void bridge_w32(u32 val, unsigned reg) +{ + iowrite32(val, bridge_base + reg); +} + +static inline u32 bridge_r32(unsigned reg) +{ + return ioread32(bridge_base + reg); +} + +static inline void pcie_w32(u32 val, unsigned reg) +{ + iowrite32(val, pcie_base + reg); +} + +static inline u32 pcie_r32(unsigned reg) +{ + return ioread32(pcie_base + reg); +} + +static inline void pcie_m32(u32 clr, u32 set, unsigned reg) +{ + u32 val = pcie_r32(reg); + + val &= ~clr; + val |= set; + pcie_w32(val, reg); +} + +static int wait_pciephy_busy(void) +{ + unsigned long reg_value = 0x0, retry = 0; + + while (1) { + reg_value = pcie_r32(PCIEPHY0_CFG); + + if (reg_value & BUSY) + mdelay(100); + else + break; + if (retry++ > WAITRETRY_MAX) { + printk(KERN_WARN "PCIE-PHY retry failed.\n"); + return -1; + } + } + return 0; +} + +static void pcie_phy(unsigned long addr, unsigned long val) +{ + wait_pciephy_busy(); + pcie_w32(WRITE_MODE | (val << DATA_SHIFT) | (addr << ADDR_SHIFT), + PCIEPHY0_CFG); + mdelay(1); + wait_pciephy_busy(); +} + +static int pci_config_read(struct pci_bus *bus, unsigned int devfn, int where, + int size, u32 *val) +{ + unsigned int slot = PCI_SLOT(devfn); + u8 func = PCI_FUNC(devfn); + u32 address; + u32 data; + u32 num = 0; + + if (bus) + num = bus->number; + + address = (((where & 0xF00) >> 8) << 24) | (num << 16) | (slot << 11) | + (func << 8) | (where & 0xfc) | 0x80000000; + bridge_w32(address, RALINK_PCI_CONFIG_ADDR); + data = bridge_r32(RALINK_PCI_CONFIG_DATA_VIRT_REG); + + switch (size) { + case 1: + *val = (data >> ((where & 3) << 3)) & 0xff; + break; + case 2: + *val = (data >> ((where & 3) << 3)) & 0xffff; + break; + case 4: + *val = data; + break; + } + + return PCIBIOS_SUCCESSFUL; +} + +static int pci_config_write(struct pci_bus *bus, unsigned int devfn, int where, + int size, u32 val) +{ + unsigned int slot = PCI_SLOT(devfn); + u8 func = PCI_FUNC(devfn); + u32 address; + u32 data; + u32 num = 0; + + if (bus) + num = bus->number; + + address = (((where & 0xF00) >> 8) << 24) | (num << 16) | (slot << 11) | + (func << 8) | (where & 0xfc) | 0x80000000; + bridge_w32(address, RALINK_PCI_CONFIG_ADDR); + data = bridge_r32(RALINK_PCI_CONFIG_DATA_VIRT_REG); + + switch (size) { + case 1: + data = (data & ~(0xff << ((where & 3) << 3))) | + (val << ((where & 3) << 3)); + break; + case 2: + data = (data & ~(0xffff << ((where & 3) << 3))) | + (val << ((where & 3) << 3)); + break; + case 4: + data = val; + break; + } + + bridge_w32(data, RALINK_PCI_CONFIG_DATA_VIRT_REG); + + return PCIBIOS_SUCCESSFUL; +} + +struct pci_ops mt7620_pci_ops = { + .read = pci_config_read, + .write = pci_config_write, +}; + +static struct resource mt7620_res_pci_mem1; +static struct resource mt7620_res_pci_io1; +struct pci_controller mt7620_controller = { + .pci_ops = &mt7620_pci_ops, + .mem_resource = &mt7620_res_pci_mem1, + .mem_offset = 0x00000000UL, + .io_resource = &mt7620_res_pci_io1, + .io_offset = 0x00000000UL, + .io_map_base = 0xa0000000, +}; + +static int mt7620_pci_hw_init(struct platform_device *pdev) +{ + /* bypass PCIe DLL */ + pcie_phy(0x0, 0x80); + pcie_phy(0x1, 0x04); + + /* Elastic buffer control */ + pcie_phy(0x68, 0xB4); + + /* put core into reset */ + pcie_m32(0, PCIRST, RALINK_PCI_PCICFG_ADDR); + reset_control_assert(rstpcie0); + + /* disable power and all clocks */ + rt_sysc_m32(RALINK_PCIE0_CLK_EN, 0, RALINK_CLKCFG1); + rt_sysc_m32(LC_CKDRVPD, PDRV_SW_SET, PPLL_DRV); + + /* bring core out of reset */ + reset_control_deassert(rstpcie0); + rt_sysc_m32(0, RALINK_PCIE0_CLK_EN, RALINK_CLKCFG1); + mdelay(100); + + if (!(rt_sysc_r32(PPLL_CFG1) & PDRV_SW_SET)) { + dev_err(&pdev->dev, "MT7620 PPLL unlock\n"); + reset_control_assert(rstpcie0); + rt_sysc_m32(RALINK_PCIE0_CLK_EN, 0, RALINK_CLKCFG1); + return -1; + } + + /* power up the bus */ + rt_sysc_m32(LC_CKDRVHZ | LC_CKDRVOHZ, LC_CKDRVPD | PDRV_SW_SET, + PPLL_DRV); + + return 0; +} + +static int mt7628_pci_hw_init(struct platform_device *pdev) +{ + u32 val = 0; + + /* bring the core out of reset */ + rt_sysc_m32(BIT(16), 0, RALINK_GPIOMODE); + reset_control_deassert(rstpcie0); + + /* enable the pci clk */ + rt_sysc_m32(0, RALINK_PCIE0_CLK_EN, RALINK_CLKCFG1); + mdelay(100); + + /* voodoo from the SDK driver */ + pcie_m32(~0xff, 0x5, RALINK_PCIEPHY_P0_CTL_OFFSET); + + pci_config_read(NULL, 0, 0x70c, 4, &val); + val &= ~(0xff) << 8; + val |= 0x50 << 8; + pci_config_write(NULL, 0, 0x70c, 4, val); + + pci_config_read(NULL, 0, 0x70c, 4, &val); + dev_err(&pdev->dev, "Port 0 N_FTS = %x\n", (unsigned int) val); + + return 0; +} + +static int mt7620_pci_probe(struct platform_device *pdev) +{ + struct resource *bridge_res = platform_get_resource(pdev, + IORESOURCE_MEM, 0); + struct resource *pcie_res = platform_get_resource(pdev, + IORESOURCE_MEM, 1); + u32 val = 0; + + rstpcie0 = devm_reset_control_get(&pdev->dev, "pcie0"); + if (IS_ERR(rstpcie0)) + return PTR_ERR(rstpcie0); + + bridge_base = devm_ioremap_resource(&pdev->dev, bridge_res); + if (!bridge_base) + return -ENOMEM; + + pcie_base = devm_ioremap_resource(&pdev->dev, pcie_res); + if (!pcie_base) + return -ENOMEM; + + iomem_resource.start = 0; + iomem_resource.end = ~0; + ioport_resource.start = 0; + ioport_resource.end = ~0; + + /* bring up the pci core */ + switch (ralink_soc) { + case MT762X_SOC_MT7620A: + if (mt7620_pci_hw_init(pdev)) + return -1; + break; + + case MT762X_SOC_MT7628AN: + if (mt7628_pci_hw_init(pdev)) + return -1; + break; + + default: + dev_err(&pdev->dev, "pcie is not supported on this hardware\n"); + return -1; + } + mdelay(50); + + /* enable write access */ + pcie_m32(PCIRST, 0, RALINK_PCI_PCICFG_ADDR); + mdelay(100); + + /* check if there is a card present */ + if ((pcie_r32(RALINK_PCI0_STATUS) & PCIE_LINK_UP_ST) == 0) { + reset_control_assert(rstpcie0); + rt_sysc_m32(RALINK_PCIE0_CLK_EN, 0, RALINK_CLKCFG1); + if (ralink_soc == MT762X_SOC_MT7620A) + rt_sysc_m32(LC_CKDRVPD, PDRV_SW_SET, PPLL_DRV); + dev_err(&pdev->dev, "PCIE0 no card, disable it(RST&CLK)\n"); + return -1; + } + + /* setup ranges */ + bridge_w32(0xffffffff, RALINK_PCI_MEMBASE); + bridge_w32(RALINK_PCI_IO_MAP_BASE, RALINK_PCI_IOBASE); + + pcie_w32(0x7FFF0001, RALINK_PCI0_BAR0SETUP_ADDR); + pcie_w32(RALINK_PCI_MEMORY_BASE, RALINK_PCI0_IMBASEBAR0_ADDR); + pcie_w32(0x06040001, RALINK_PCI0_CLASS); + + /* enable interrupts */ + pcie_m32(0, PCIINT2, RALINK_PCI_PCIENA); + + /* voodoo from the SDK driver */ + pci_config_read(NULL, 0, 4, 4, &val); + pci_config_write(NULL, 0, 4, 4, val | 0x7); + + pci_load_of_ranges(&mt7620_controller, pdev->dev.of_node); + register_pci_controller(&mt7620_controller); + + return 0; +} + +int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) +{ + u16 cmd; + u32 val; + int irq = 0; + + if ((dev->bus->number == 0) && (slot == 0)) { + pcie_w32(0x7FFF0001, RALINK_PCI0_BAR0SETUP_ADDR); + pci_config_write(dev->bus, 0, PCI_BASE_ADDRESS_0, 4, + RALINK_PCI_MEMORY_BASE); + pci_config_read(dev->bus, 0, PCI_BASE_ADDRESS_0, 4, &val); + } else if ((dev->bus->number == 1) && (slot == 0x0)) { + irq = RALINK_INT_PCIE0; + } else { + dev_err(&dev->dev, "no irq found - bus=0x%x, slot = 0x%x\n", + dev->bus->number, slot); + return 0; + } + dev_err(&dev->dev, "card - bus=0x%x, slot = 0x%x irq=%d\n", + dev->bus->number, slot, irq); + + /* configure the cache line size to 0x14 */ + pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE, 0x14); + + /* configure latency timer to 0xff */ + pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0xff); + pci_read_config_word(dev, PCI_COMMAND, &cmd); + + /* setup the slot */ + cmd = cmd | PCI_COMMAND_MASTER | PCI_COMMAND_IO | PCI_COMMAND_MEMORY; + pci_write_config_word(dev, PCI_COMMAND, cmd); + pci_write_config_byte(dev, PCI_INTERRUPT_LINE, dev->irq); + + return irq; +} + +int pcibios_plat_dev_init(struct pci_dev *dev) +{ + return 0; +} + +static const struct of_device_id mt7620_pci_ids[] = { + { .compatible = "mediatek,mt7620-pci" }, + {}, +}; +MODULE_DEVICE_TABLE(of, mt7620_pci_ids); + +static struct platform_driver mt7620_pci_driver = { + .probe = mt7620_pci_probe, + .driver = { + .name = "mt7620-pci", + .owner = THIS_MODULE, + .of_match_table = of_match_ptr(mt7620_pci_ids), + }, +}; + +static int __init mt7620_pci_init(void) +{ + return platform_driver_register(&mt7620_pci_driver); +} + +arch_initcall(mt7620_pci_init); diff --git a/arch/mips/pic32/Kconfig b/arch/mips/pic32/Kconfig new file mode 100644 index 000000000000..fde56a8b85ca --- /dev/null +++ b/arch/mips/pic32/Kconfig @@ -0,0 +1,51 @@ +if MACH_PIC32 + +choice + prompt "Machine Type" + +config PIC32MZDA + bool "Microchip PIC32MZDA Platform" + select BOOT_ELF32 + select BOOT_RAW + select CEVT_R4K + select CSRC_R4K + select DMA_NONCOHERENT + select SYS_HAS_CPU_MIPS32_R2 + select SYS_HAS_EARLY_PRINTK + select SYS_SUPPORTS_32BIT_KERNEL + select SYS_SUPPORTS_LITTLE_ENDIAN + select ARCH_REQUIRE_GPIOLIB + select HAVE_MACH_CLKDEV + select COMMON_CLK + select CLKDEV_LOOKUP + select LIBFDT + select USE_OF + select PINCTRL + select PIC32_EVIC + help + Support for the Microchip PIC32MZDA microcontroller. + + This is a 32-bit microcontroller with support for external or + internally packaged DDR2 memory up to 128MB. + + For more information, see <http://www.microchip.com/>. + +endchoice + +choice + prompt "Devicetree selection" + default DTB_PIC32_NONE + help + Select the devicetree. + +config DTB_PIC32_NONE + bool "None" + +config DTB_PIC32_MZDA_SK + bool "PIC32MZDA Starter Kit" + depends on PIC32MZDA + select BUILTIN_DTB + +endchoice + +endif # MACH_PIC32 diff --git a/arch/mips/pic32/Makefile b/arch/mips/pic32/Makefile new file mode 100644 index 000000000000..fd357f49ac6c --- /dev/null +++ b/arch/mips/pic32/Makefile @@ -0,0 +1,6 @@ +# +# Joshua Henderson, <joshua.henderson@microchip.com> +# Copyright (C) 2015 Microchip Technology, Inc. All rights reserved. +# +obj-$(CONFIG_MACH_PIC32) += common/ +obj-$(CONFIG_PIC32MZDA) += pic32mzda/ diff --git a/arch/mips/pic32/Platform b/arch/mips/pic32/Platform new file mode 100644 index 000000000000..cd2084f44507 --- /dev/null +++ b/arch/mips/pic32/Platform @@ -0,0 +1,7 @@ +# +# PIC32MZDA +# +platform-$(CONFIG_PIC32MZDA) += pic32/ +cflags-$(CONFIG_PIC32MZDA) += -I$(srctree)/arch/mips/include/asm/mach-pic32 +load-$(CONFIG_PIC32MZDA) += 0xffffffff88000000 +all-$(CONFIG_PIC32MZDA) := $(COMPRESSION_FNAME).bin diff --git a/arch/mips/pic32/common/Makefile b/arch/mips/pic32/common/Makefile new file mode 100644 index 000000000000..be1909cc0467 --- /dev/null +++ b/arch/mips/pic32/common/Makefile @@ -0,0 +1,5 @@ +# +# Joshua Henderson, <joshua.henderson@microchip.com> +# Copyright (C) 2015 Microchip Technology, Inc. All rights reserved. +# +obj-y = reset.o irq.o diff --git a/arch/mips/pic32/common/irq.c b/arch/mips/pic32/common/irq.c new file mode 100644 index 000000000000..6df347e36036 --- /dev/null +++ b/arch/mips/pic32/common/irq.c @@ -0,0 +1,21 @@ +/* + * Joshua Henderson <joshua.henderson@microchip.com> + * Copyright (C) 2015 Microchip Technology Inc. All rights reserved. + * + * This program is free software; you can distribute it and/or modify it + * under the terms of the GNU General Public License (Version 2) as + * published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ +#include <linux/init.h> +#include <linux/irqchip.h> +#include <asm/irq.h> + +void __init arch_init_irq(void) +{ + irqchip_init(); +} diff --git a/arch/mips/pic32/common/reset.c b/arch/mips/pic32/common/reset.c new file mode 100644 index 000000000000..83345757be5f --- /dev/null +++ b/arch/mips/pic32/common/reset.c @@ -0,0 +1,62 @@ +/* + * Joshua Henderson <joshua.henderson@microchip.com> + * Copyright (C) 2015 Microchip Technology Inc. All rights reserved. + * + * This program is free software; you can distribute it and/or modify it + * under the terms of the GNU General Public License (Version 2) as + * published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ +#include <linux/init.h> +#include <linux/pm.h> +#include <asm/reboot.h> +#include <asm/mach-pic32/pic32.h> + +#define PIC32_RSWRST 0x10 + +static void pic32_halt(void) +{ + while (1) { + __asm__(".set push;\n" + ".set arch=r4000;\n" + "wait;\n" + ".set pop;\n" + ); + } +} + +static void pic32_machine_restart(char *command) +{ + void __iomem *reg = + ioremap(PIC32_BASE_RESET + PIC32_RSWRST, sizeof(u32)); + + pic32_syskey_unlock(); + + /* magic write/read */ + __raw_writel(1, reg); + (void)__raw_readl(reg); + + pic32_halt(); +} + +static void pic32_machine_halt(void) +{ + local_irq_disable(); + + pic32_halt(); +} + +static int __init mips_reboot_setup(void) +{ + _machine_restart = pic32_machine_restart; + _machine_halt = pic32_machine_halt; + pm_power_off = pic32_machine_halt; + + return 0; +} + +arch_initcall(mips_reboot_setup); diff --git a/arch/mips/pic32/pic32mzda/Makefile b/arch/mips/pic32/pic32mzda/Makefile new file mode 100644 index 000000000000..4a4c2728c027 --- /dev/null +++ b/arch/mips/pic32/pic32mzda/Makefile @@ -0,0 +1,9 @@ +# +# Joshua Henderson, <joshua.henderson@microchip.com> +# Copyright (C) 2015 Microchip Technology, Inc. All rights reserved. +# +obj-y := init.o time.o config.o + +obj-$(CONFIG_EARLY_PRINTK) += early_console.o \ + early_pin.o \ + early_clk.o diff --git a/arch/mips/pic32/pic32mzda/config.c b/arch/mips/pic32/pic32mzda/config.c new file mode 100644 index 000000000000..fe293a070003 --- /dev/null +++ b/arch/mips/pic32/pic32mzda/config.c @@ -0,0 +1,126 @@ +/* + * Purna Chandra Mandal, purna.mandal@microchip.com + * Copyright (C) 2015 Microchip Technology Inc. All rights reserved. + * + * This program is free software; you can distribute it and/or modify it + * under the terms of the GNU General Public License (Version 2) as + * published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ +#include <linux/init.h> +#include <linux/io.h> +#include <linux/of_platform.h> + +#include <asm/mach-pic32/pic32.h> + +#include "pic32mzda.h" + +#define PIC32_CFGCON 0x0000 +#define PIC32_DEVID 0x0020 +#define PIC32_SYSKEY 0x0030 +#define PIC32_CFGEBIA 0x00c0 +#define PIC32_CFGEBIC 0x00d0 +#define PIC32_CFGCON2 0x00f0 +#define PIC32_RCON 0x1240 + +static void __iomem *pic32_conf_base; +static DEFINE_SPINLOCK(config_lock); +static u32 pic32_reset_status; + +static u32 pic32_conf_get_reg_field(u32 offset, u32 rshift, u32 mask) +{ + u32 v; + + v = readl(pic32_conf_base + offset); + v >>= rshift; + v &= mask; + + return v; +} + +static u32 pic32_conf_modify_atomic(u32 offset, u32 mask, u32 set) +{ + u32 v; + unsigned long flags; + + spin_lock_irqsave(&config_lock, flags); + v = readl(pic32_conf_base + offset); + v &= ~mask; + v |= (set & mask); + writel(v, pic32_conf_base + offset); + spin_unlock_irqrestore(&config_lock, flags); + + return 0; +} + +int pic32_enable_lcd(void) +{ + return pic32_conf_modify_atomic(PIC32_CFGCON2, BIT(31), BIT(31)); +} + +int pic32_disable_lcd(void) +{ + return pic32_conf_modify_atomic(PIC32_CFGCON2, BIT(31), 0); +} + +int pic32_set_lcd_mode(int mode) +{ + u32 mask = mode ? BIT(30) : 0; + + return pic32_conf_modify_atomic(PIC32_CFGCON2, BIT(30), mask); +} + +int pic32_set_sdhci_adma_fifo_threshold(u32 rthrsh, u32 wthrsh) +{ + u32 clr, set; + + clr = (0x3ff << 4) | (0x3ff << 16); + set = (rthrsh << 4) | (wthrsh << 16); + return pic32_conf_modify_atomic(PIC32_CFGCON2, clr, set); +} + +void pic32_syskey_unlock_debug(const char *func, const ulong line) +{ + void __iomem *syskey = pic32_conf_base + PIC32_SYSKEY; + + pr_debug("%s: called from %s:%lu\n", __func__, func, line); + writel(0x00000000, syskey); + writel(0xAA996655, syskey); + writel(0x556699AA, syskey); +} + +static u32 pic32_get_device_id(void) +{ + return pic32_conf_get_reg_field(PIC32_DEVID, 0, 0x0fffffff); +} + +static u32 pic32_get_device_version(void) +{ + return pic32_conf_get_reg_field(PIC32_DEVID, 28, 0xf); +} + +u32 pic32_get_boot_status(void) +{ + return pic32_reset_status; +} +EXPORT_SYMBOL(pic32_get_boot_status); + +void __init pic32_config_init(void) +{ + pic32_conf_base = ioremap(PIC32_BASE_CONFIG, 0x110); + if (!pic32_conf_base) + panic("pic32: config base not mapped"); + + /* Boot Status */ + pic32_reset_status = readl(pic32_conf_base + PIC32_RCON); + writel(-1, PIC32_CLR(pic32_conf_base + PIC32_RCON)); + + /* Device Inforation */ + pr_info("Device Id: 0x%08x, Device Ver: 0x%04x\n", + pic32_get_device_id(), + pic32_get_device_version()); +} diff --git a/arch/mips/pic32/pic32mzda/early_clk.c b/arch/mips/pic32/pic32mzda/early_clk.c new file mode 100644 index 000000000000..96c090e9d637 --- /dev/null +++ b/arch/mips/pic32/pic32mzda/early_clk.c @@ -0,0 +1,106 @@ +/* + * Joshua Henderson <joshua.henderson@microchip.com> + * Copyright (C) 2015 Microchip Technology Inc. All rights reserved. + * + * This program is free software; you can distribute it and/or modify it + * under the terms of the GNU General Public License (Version 2) as + * published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ +#include <asm/mach-pic32/pic32.h> + +#include "pic32mzda.h" + +/* Oscillators, PLL & clocks */ +#define ICLK_MASK 0x00000080 +#define PLLDIV_MASK 0x00000007 +#define CUROSC_MASK 0x00000007 +#define PLLMUL_MASK 0x0000007F +#define PB_MASK 0x00000007 +#define FRC1 0 +#define FRC2 7 +#define SPLL 1 +#define POSC 2 +#define FRC_CLK 8000000 + +#define PIC32_POSC_FREQ 24000000 + +#define OSCCON 0x0000 +#define SPLLCON 0x0020 +#define PB1DIV 0x0140 + +u32 pic32_get_sysclk(void) +{ + u32 osc_freq = 0; + u32 pllclk; + u32 frcdivn; + u32 osccon; + u32 spllcon; + int curr_osc; + + u32 plliclk; + u32 pllidiv; + u32 pllodiv; + u32 pllmult; + u32 frcdiv; + + void __iomem *osc_base = ioremap(PIC32_BASE_OSC, 0x200); + + osccon = __raw_readl(osc_base + OSCCON); + spllcon = __raw_readl(osc_base + SPLLCON); + + plliclk = (spllcon & ICLK_MASK); + pllidiv = ((spllcon >> 8) & PLLDIV_MASK) + 1; + pllodiv = ((spllcon >> 24) & PLLDIV_MASK); + pllmult = ((spllcon >> 16) & PLLMUL_MASK) + 1; + frcdiv = ((osccon >> 24) & PLLDIV_MASK); + + pllclk = plliclk ? FRC_CLK : PIC32_POSC_FREQ; + frcdivn = ((1 << frcdiv) + 1) + (128 * (frcdiv == 7)); + + if (pllodiv < 2) + pllodiv = 2; + else if (pllodiv < 5) + pllodiv = (1 << pllodiv); + else + pllodiv = 32; + + curr_osc = (int)((osccon >> 12) & CUROSC_MASK); + + switch (curr_osc) { + case FRC1: + case FRC2: + osc_freq = FRC_CLK / frcdivn; + break; + case SPLL: + osc_freq = ((pllclk / pllidiv) * pllmult) / pllodiv; + break; + case POSC: + osc_freq = PIC32_POSC_FREQ; + break; + default: + break; + } + + iounmap(osc_base); + + return osc_freq; +} + +u32 pic32_get_pbclk(int bus) +{ + u32 clk_freq; + void __iomem *osc_base = ioremap(PIC32_BASE_OSC, 0x200); + u32 pbxdiv = PB1DIV + ((bus - 1) * 0x10); + u32 pbdiv = (__raw_readl(osc_base + pbxdiv) & PB_MASK) + 1; + + iounmap(osc_base); + + clk_freq = pic32_get_sysclk(); + + return clk_freq / pbdiv; +} diff --git a/arch/mips/pic32/pic32mzda/early_console.c b/arch/mips/pic32/pic32mzda/early_console.c new file mode 100644 index 000000000000..d7b783463fac --- /dev/null +++ b/arch/mips/pic32/pic32mzda/early_console.c @@ -0,0 +1,171 @@ +/* + * Joshua Henderson <joshua.henderson@microchip.com> + * Copyright (C) 2015 Microchip Technology Inc. All rights reserved. + * + * This program is free software; you can distribute it and/or modify it + * under the terms of the GNU General Public License (Version 2) as + * published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ +#include <asm/mach-pic32/pic32.h> +#include <asm/fw/fw.h> + +#include "pic32mzda.h" +#include "early_pin.h" + +/* Default early console parameters */ +#define EARLY_CONSOLE_PORT 1 +#define EARLY_CONSOLE_BAUDRATE 115200 + +#define UART_ENABLE BIT(15) +#define UART_ENABLE_RX BIT(12) +#define UART_ENABLE_TX BIT(10) +#define UART_TX_FULL BIT(9) + +/* UART1(x == 0) - UART6(x == 5) */ +#define UART_BASE(x) ((x) * 0x0200) +#define U_MODE(x) UART_BASE(x) +#define U_STA(x) (UART_BASE(x) + 0x10) +#define U_TXR(x) (UART_BASE(x) + 0x20) +#define U_BRG(x) (UART_BASE(x) + 0x40) + +static void __iomem *uart_base; +static char console_port = -1; + +static int __init configure_uart_pins(int port) +{ + switch (port) { + case 1: + pic32_pps_input(IN_FUNC_U2RX, IN_RPB0); + pic32_pps_output(OUT_FUNC_U2TX, OUT_RPG9); + break; + case 5: + pic32_pps_input(IN_FUNC_U6RX, IN_RPD0); + pic32_pps_output(OUT_FUNC_U6TX, OUT_RPB8); + break; + default: + return -1; + } + + return 0; +} + +static void __init configure_uart(char port, int baud) +{ + u32 pbclk; + + pbclk = pic32_get_pbclk(2); + + __raw_writel(0, uart_base + U_MODE(port)); + __raw_writel(((pbclk / baud) / 16) - 1, uart_base + U_BRG(port)); + __raw_writel(UART_ENABLE, uart_base + U_MODE(port)); + __raw_writel(UART_ENABLE_TX | UART_ENABLE_RX, + uart_base + PIC32_SET(U_STA(port))); +} + +static void __init setup_early_console(char port, int baud) +{ + if (configure_uart_pins(port)) + return; + + console_port = port; + configure_uart(console_port, baud); +} + +static char * __init pic32_getcmdline(void) +{ + /* + * arch_mem_init() has not been called yet, so we don't have a real + * command line setup if using CONFIG_CMDLINE_BOOL. + */ +#ifdef CONFIG_CMDLINE_OVERRIDE + return CONFIG_CMDLINE; +#else + return fw_getcmdline(); +#endif +} + +static int __init get_port_from_cmdline(char *arch_cmdline) +{ + char *s; + int port = -1; + + if (!arch_cmdline || *arch_cmdline == '\0') + goto _out; + + s = strstr(arch_cmdline, "earlyprintk="); + if (s) { + s = strstr(s, "ttyS"); + if (s) + s += 4; + else + goto _out; + + port = (*s) - '0'; + } + +_out: + return port; +} + +static int __init get_baud_from_cmdline(char *arch_cmdline) +{ + char *s; + int baud = -1; + + if (!arch_cmdline || *arch_cmdline == '\0') + goto _out; + + s = strstr(arch_cmdline, "earlyprintk="); + if (s) { + s = strstr(s, "ttyS"); + if (s) + s += 6; + else + goto _out; + + baud = 0; + while (*s >= '0' && *s <= '9') + baud = baud * 10 + *s++ - '0'; + } + +_out: + return baud; +} + +void __init fw_init_early_console(char port) +{ + char *arch_cmdline = pic32_getcmdline(); + int baud = -1; + + uart_base = ioremap_nocache(PIC32_BASE_UART, 0xc00); + + baud = get_baud_from_cmdline(arch_cmdline); + if (port == -1) + port = get_port_from_cmdline(arch_cmdline); + + if (port == -1) + port = EARLY_CONSOLE_PORT; + + if (baud == -1) + baud = EARLY_CONSOLE_BAUDRATE; + + setup_early_console(port, baud); +} + +int prom_putchar(char c) +{ + if (console_port >= 0) { + while (__raw_readl( + uart_base + U_STA(console_port)) & UART_TX_FULL) + ; + + __raw_writel(c, uart_base + U_TXR(console_port)); + } + + return 1; +} diff --git a/arch/mips/pic32/pic32mzda/early_pin.c b/arch/mips/pic32/pic32mzda/early_pin.c new file mode 100644 index 000000000000..aa673f8023a8 --- /dev/null +++ b/arch/mips/pic32/pic32mzda/early_pin.c @@ -0,0 +1,275 @@ +/* + * Joshua Henderson <joshua.henderson@microchip.com> + * Copyright (C) 2015 Microchip Technology Inc. All rights reserved. + * + * This program is free software; you can distribute it and/or modify it + * under the terms of the GNU General Public License (Version 2) as + * published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ +#include <asm/io.h> + +#include "early_pin.h" + +#define PPS_BASE 0x1f800000 + +/* Input PPS Registers */ +#define INT1R 0x1404 +#define INT2R 0x1408 +#define INT3R 0x140C +#define INT4R 0x1410 +#define T2CKR 0x1418 +#define T3CKR 0x141C +#define T4CKR 0x1420 +#define T5CKR 0x1424 +#define T6CKR 0x1428 +#define T7CKR 0x142C +#define T8CKR 0x1430 +#define T9CKR 0x1434 +#define IC1R 0x1438 +#define IC2R 0x143C +#define IC3R 0x1440 +#define IC4R 0x1444 +#define IC5R 0x1448 +#define IC6R 0x144C +#define IC7R 0x1450 +#define IC8R 0x1454 +#define IC9R 0x1458 +#define OCFAR 0x1460 +#define U1RXR 0x1468 +#define U1CTSR 0x146C +#define U2RXR 0x1470 +#define U2CTSR 0x1474 +#define U3RXR 0x1478 +#define U3CTSR 0x147C +#define U4RXR 0x1480 +#define U4CTSR 0x1484 +#define U5RXR 0x1488 +#define U5CTSR 0x148C +#define U6RXR 0x1490 +#define U6CTSR 0x1494 +#define SDI1R 0x149C +#define SS1R 0x14A0 +#define SDI2R 0x14A8 +#define SS2R 0x14AC +#define SDI3R 0x14B4 +#define SS3R 0x14B8 +#define SDI4R 0x14C0 +#define SS4R 0x14C4 +#define SDI5R 0x14CC +#define SS5R 0x14D0 +#define SDI6R 0x14D8 +#define SS6R 0x14DC +#define C1RXR 0x14E0 +#define C2RXR 0x14E4 +#define REFCLKI1R 0x14E8 +#define REFCLKI3R 0x14F0 +#define REFCLKI4R 0x14F4 + +static const struct +{ + int function; + int reg; +} input_pin_reg[] = { + { IN_FUNC_INT3, INT3R }, + { IN_FUNC_T2CK, T2CKR }, + { IN_FUNC_T6CK, T6CKR }, + { IN_FUNC_IC3, IC3R }, + { IN_FUNC_IC7, IC7R }, + { IN_FUNC_U1RX, U1RXR }, + { IN_FUNC_U2CTS, U2CTSR }, + { IN_FUNC_U5RX, U5RXR }, + { IN_FUNC_U6CTS, U6CTSR }, + { IN_FUNC_SDI1, SDI1R }, + { IN_FUNC_SDI3, SDI3R }, + { IN_FUNC_SDI5, SDI5R }, + { IN_FUNC_SS6, SS6R }, + { IN_FUNC_REFCLKI1, REFCLKI1R }, + { IN_FUNC_INT4, INT4R }, + { IN_FUNC_T5CK, T5CKR }, + { IN_FUNC_T7CK, T7CKR }, + { IN_FUNC_IC4, IC4R }, + { IN_FUNC_IC8, IC8R }, + { IN_FUNC_U3RX, U3RXR }, + { IN_FUNC_U4CTS, U4CTSR }, + { IN_FUNC_SDI2, SDI2R }, + { IN_FUNC_SDI4, SDI4R }, + { IN_FUNC_C1RX, C1RXR }, + { IN_FUNC_REFCLKI4, REFCLKI4R }, + { IN_FUNC_INT2, INT2R }, + { IN_FUNC_T3CK, T3CKR }, + { IN_FUNC_T8CK, T8CKR }, + { IN_FUNC_IC2, IC2R }, + { IN_FUNC_IC5, IC5R }, + { IN_FUNC_IC9, IC9R }, + { IN_FUNC_U1CTS, U1CTSR }, + { IN_FUNC_U2RX, U2RXR }, + { IN_FUNC_U5CTS, U5CTSR }, + { IN_FUNC_SS1, SS1R }, + { IN_FUNC_SS3, SS3R }, + { IN_FUNC_SS4, SS4R }, + { IN_FUNC_SS5, SS5R }, + { IN_FUNC_C2RX, C2RXR }, + { IN_FUNC_INT1, INT1R }, + { IN_FUNC_T4CK, T4CKR }, + { IN_FUNC_T9CK, T9CKR }, + { IN_FUNC_IC1, IC1R }, + { IN_FUNC_IC6, IC6R }, + { IN_FUNC_U3CTS, U3CTSR }, + { IN_FUNC_U4RX, U4RXR }, + { IN_FUNC_U6RX, U6RXR }, + { IN_FUNC_SS2, SS2R }, + { IN_FUNC_SDI6, SDI6R }, + { IN_FUNC_OCFA, OCFAR }, + { IN_FUNC_REFCLKI3, REFCLKI3R }, +}; + +void pic32_pps_input(int function, int pin) +{ + void __iomem *pps_base = ioremap_nocache(PPS_BASE, 0xF4); + int i; + + for (i = 0; i < ARRAY_SIZE(input_pin_reg); i++) { + if (input_pin_reg[i].function == function) { + __raw_writel(pin, pps_base + input_pin_reg[i].reg); + return; + } + } + + iounmap(pps_base); +} + +/* Output PPS Registers */ +#define RPA14R 0x1538 +#define RPA15R 0x153C +#define RPB0R 0x1540 +#define RPB1R 0x1544 +#define RPB2R 0x1548 +#define RPB3R 0x154C +#define RPB5R 0x1554 +#define RPB6R 0x1558 +#define RPB7R 0x155C +#define RPB8R 0x1560 +#define RPB9R 0x1564 +#define RPB10R 0x1568 +#define RPB14R 0x1578 +#define RPB15R 0x157C +#define RPC1R 0x1584 +#define RPC2R 0x1588 +#define RPC3R 0x158C +#define RPC4R 0x1590 +#define RPC13R 0x15B4 +#define RPC14R 0x15B8 +#define RPD0R 0x15C0 +#define RPD1R 0x15C4 +#define RPD2R 0x15C8 +#define RPD3R 0x15CC +#define RPD4R 0x15D0 +#define RPD5R 0x15D4 +#define RPD6R 0x15D8 +#define RPD7R 0x15DC +#define RPD9R 0x15E4 +#define RPD10R 0x15E8 +#define RPD11R 0x15EC +#define RPD12R 0x15F0 +#define RPD14R 0x15F8 +#define RPD15R 0x15FC +#define RPE3R 0x160C +#define RPE5R 0x1614 +#define RPE8R 0x1620 +#define RPE9R 0x1624 +#define RPF0R 0x1640 +#define RPF1R 0x1644 +#define RPF2R 0x1648 +#define RPF3R 0x164C +#define RPF4R 0x1650 +#define RPF5R 0x1654 +#define RPF8R 0x1660 +#define RPF12R 0x1670 +#define RPF13R 0x1674 +#define RPG0R 0x1680 +#define RPG1R 0x1684 +#define RPG6R 0x1698 +#define RPG7R 0x169C +#define RPG8R 0x16A0 +#define RPG9R 0x16A4 + +static const struct +{ + int pin; + int reg; +} output_pin_reg[] = { + { OUT_RPD2, RPD2R }, + { OUT_RPG8, RPG8R }, + { OUT_RPF4, RPF4R }, + { OUT_RPD10, RPD10R }, + { OUT_RPF1, RPF1R }, + { OUT_RPB9, RPB9R }, + { OUT_RPB10, RPB10R }, + { OUT_RPC14, RPC14R }, + { OUT_RPB5, RPB5R }, + { OUT_RPC1, RPC1R }, + { OUT_RPD14, RPD14R }, + { OUT_RPG1, RPG1R }, + { OUT_RPA14, RPA14R }, + { OUT_RPD6, RPD6R }, + { OUT_RPD3, RPD3R }, + { OUT_RPG7, RPG7R }, + { OUT_RPF5, RPF5R }, + { OUT_RPD11, RPD11R }, + { OUT_RPF0, RPF0R }, + { OUT_RPB1, RPB1R }, + { OUT_RPE5, RPE5R }, + { OUT_RPC13, RPC13R }, + { OUT_RPB3, RPB3R }, + { OUT_RPC4, RPC4R }, + { OUT_RPD15, RPD15R }, + { OUT_RPG0, RPG0R }, + { OUT_RPA15, RPA15R }, + { OUT_RPD7, RPD7R }, + { OUT_RPD9, RPD9R }, + { OUT_RPG6, RPG6R }, + { OUT_RPB8, RPB8R }, + { OUT_RPB15, RPB15R }, + { OUT_RPD4, RPD4R }, + { OUT_RPB0, RPB0R }, + { OUT_RPE3, RPE3R }, + { OUT_RPB7, RPB7R }, + { OUT_RPF12, RPF12R }, + { OUT_RPD12, RPD12R }, + { OUT_RPF8, RPF8R }, + { OUT_RPC3, RPC3R }, + { OUT_RPE9, RPE9R }, + { OUT_RPD1, RPD1R }, + { OUT_RPG9, RPG9R }, + { OUT_RPB14, RPB14R }, + { OUT_RPD0, RPD0R }, + { OUT_RPB6, RPB6R }, + { OUT_RPD5, RPD5R }, + { OUT_RPB2, RPB2R }, + { OUT_RPF3, RPF3R }, + { OUT_RPF13, RPF13R }, + { OUT_RPC2, RPC2R }, + { OUT_RPE8, RPE8R }, + { OUT_RPF2, RPF2R }, +}; + +void pic32_pps_output(int function, int pin) +{ + void __iomem *pps_base = ioremap_nocache(PPS_BASE, 0x170); + int i; + + for (i = 0; i < ARRAY_SIZE(output_pin_reg); i++) { + if (output_pin_reg[i].pin == pin) { + __raw_writel(function, + pps_base + output_pin_reg[i].reg); + return; + } + } + + iounmap(pps_base); +} diff --git a/arch/mips/pic32/pic32mzda/early_pin.h b/arch/mips/pic32/pic32mzda/early_pin.h new file mode 100644 index 000000000000..417fae9a9627 --- /dev/null +++ b/arch/mips/pic32/pic32mzda/early_pin.h @@ -0,0 +1,241 @@ +/* + * Joshua Henderson <joshua.henderson@microchip.com> + * Copyright (C) 2015 Microchip Technology Inc. All rights reserved. + * + * This program is free software; you can distribute it and/or modify it + * under the terms of the GNU General Public License (Version 2) as + * published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ +#ifndef _PIC32MZDA_EARLY_PIN_H +#define _PIC32MZDA_EARLY_PIN_H + +/* + * This is a complete, yet overly simplistic and unoptimized, PIC32MZDA PPS + * configuration only useful before we have full pinctrl initialized. + */ + +/* Input PPS Functions */ +enum { + IN_FUNC_INT3, + IN_FUNC_T2CK, + IN_FUNC_T6CK, + IN_FUNC_IC3, + IN_FUNC_IC7, + IN_FUNC_U1RX, + IN_FUNC_U2CTS, + IN_FUNC_U5RX, + IN_FUNC_U6CTS, + IN_FUNC_SDI1, + IN_FUNC_SDI3, + IN_FUNC_SDI5, + IN_FUNC_SS6, + IN_FUNC_REFCLKI1, + IN_FUNC_INT4, + IN_FUNC_T5CK, + IN_FUNC_T7CK, + IN_FUNC_IC4, + IN_FUNC_IC8, + IN_FUNC_U3RX, + IN_FUNC_U4CTS, + IN_FUNC_SDI2, + IN_FUNC_SDI4, + IN_FUNC_C1RX, + IN_FUNC_REFCLKI4, + IN_FUNC_INT2, + IN_FUNC_T3CK, + IN_FUNC_T8CK, + IN_FUNC_IC2, + IN_FUNC_IC5, + IN_FUNC_IC9, + IN_FUNC_U1CTS, + IN_FUNC_U2RX, + IN_FUNC_U5CTS, + IN_FUNC_SS1, + IN_FUNC_SS3, + IN_FUNC_SS4, + IN_FUNC_SS5, + IN_FUNC_C2RX, + IN_FUNC_INT1, + IN_FUNC_T4CK, + IN_FUNC_T9CK, + IN_FUNC_IC1, + IN_FUNC_IC6, + IN_FUNC_U3CTS, + IN_FUNC_U4RX, + IN_FUNC_U6RX, + IN_FUNC_SS2, + IN_FUNC_SDI6, + IN_FUNC_OCFA, + IN_FUNC_REFCLKI3, +}; + +/* Input PPS Pins */ +#define IN_RPD2 0x00 +#define IN_RPG8 0x01 +#define IN_RPF4 0x02 +#define IN_RPD10 0x03 +#define IN_RPF1 0x04 +#define IN_RPB9 0x05 +#define IN_RPB10 0x06 +#define IN_RPC14 0x07 +#define IN_RPB5 0x08 +#define IN_RPC1 0x0A +#define IN_RPD14 0x0B +#define IN_RPG1 0x0C +#define IN_RPA14 0x0D +#define IN_RPD6 0x0E +#define IN_RPD3 0x00 +#define IN_RPG7 0x01 +#define IN_RPF5 0x02 +#define IN_RPD11 0x03 +#define IN_RPF0 0x04 +#define IN_RPB1 0x05 +#define IN_RPE5 0x06 +#define IN_RPC13 0x07 +#define IN_RPB3 0x08 +#define IN_RPC4 0x0A +#define IN_RPD15 0x0B +#define IN_RPG0 0x0C +#define IN_RPA15 0x0D +#define IN_RPD7 0x0E +#define IN_RPD9 0x00 +#define IN_RPG6 0x01 +#define IN_RPB8 0x02 +#define IN_RPB15 0x03 +#define IN_RPD4 0x04 +#define IN_RPB0 0x05 +#define IN_RPE3 0x06 +#define IN_RPB7 0x07 +#define IN_RPF12 0x09 +#define IN_RPD12 0x0A +#define IN_RPF8 0x0B +#define IN_RPC3 0x0C +#define IN_RPE9 0x0D +#define IN_RPD1 0x00 +#define IN_RPG9 0x01 +#define IN_RPB14 0x02 +#define IN_RPD0 0x03 +#define IN_RPB6 0x05 +#define IN_RPD5 0x06 +#define IN_RPB2 0x07 +#define IN_RPF3 0x08 +#define IN_RPF13 0x09 +#define IN_RPF2 0x0B +#define IN_RPC2 0x0C +#define IN_RPE8 0x0D + +/* Output PPS Pins */ +enum { + OUT_RPD2, + OUT_RPG8, + OUT_RPF4, + OUT_RPD10, + OUT_RPF1, + OUT_RPB9, + OUT_RPB10, + OUT_RPC14, + OUT_RPB5, + OUT_RPC1, + OUT_RPD14, + OUT_RPG1, + OUT_RPA14, + OUT_RPD6, + OUT_RPD3, + OUT_RPG7, + OUT_RPF5, + OUT_RPD11, + OUT_RPF0, + OUT_RPB1, + OUT_RPE5, + OUT_RPC13, + OUT_RPB3, + OUT_RPC4, + OUT_RPD15, + OUT_RPG0, + OUT_RPA15, + OUT_RPD7, + OUT_RPD9, + OUT_RPG6, + OUT_RPB8, + OUT_RPB15, + OUT_RPD4, + OUT_RPB0, + OUT_RPE3, + OUT_RPB7, + OUT_RPF12, + OUT_RPD12, + OUT_RPF8, + OUT_RPC3, + OUT_RPE9, + OUT_RPD1, + OUT_RPG9, + OUT_RPB14, + OUT_RPD0, + OUT_RPB6, + OUT_RPD5, + OUT_RPB2, + OUT_RPF3, + OUT_RPF13, + OUT_RPC2, + OUT_RPE8, + OUT_RPF2, +}; + +/* Output PPS Functions */ +#define OUT_FUNC_U3TX 0x01 +#define OUT_FUNC_U4RTS 0x02 +#define OUT_FUNC_SDO1 0x05 +#define OUT_FUNC_SDO2 0x06 +#define OUT_FUNC_SDO3 0x07 +#define OUT_FUNC_SDO5 0x09 +#define OUT_FUNC_SS6 0x0A +#define OUT_FUNC_OC3 0x0B +#define OUT_FUNC_OC6 0x0C +#define OUT_FUNC_REFCLKO4 0x0D +#define OUT_FUNC_C2OUT 0x0E +#define OUT_FUNC_C1TX 0x0F +#define OUT_FUNC_U1TX 0x01 +#define OUT_FUNC_U2RTS 0x02 +#define OUT_FUNC_U5TX 0x03 +#define OUT_FUNC_U6RTS 0x04 +#define OUT_FUNC_SDO1 0x05 +#define OUT_FUNC_SDO2 0x06 +#define OUT_FUNC_SDO3 0x07 +#define OUT_FUNC_SDO4 0x08 +#define OUT_FUNC_SDO5 0x09 +#define OUT_FUNC_OC4 0x0B +#define OUT_FUNC_OC7 0x0C +#define OUT_FUNC_REFCLKO1 0x0F +#define OUT_FUNC_U3RTS 0x01 +#define OUT_FUNC_U4TX 0x02 +#define OUT_FUNC_U6TX 0x04 +#define OUT_FUNC_SS1 0x05 +#define OUT_FUNC_SS3 0x07 +#define OUT_FUNC_SS4 0x08 +#define OUT_FUNC_SS5 0x09 +#define OUT_FUNC_SDO6 0x0A +#define OUT_FUNC_OC5 0x0B +#define OUT_FUNC_OC8 0x0C +#define OUT_FUNC_C1OUT 0x0E +#define OUT_FUNC_REFCLKO3 0x0F +#define OUT_FUNC_U1RTS 0x01 +#define OUT_FUNC_U2TX 0x02 +#define OUT_FUNC_U5RTS 0x03 +#define OUT_FUNC_U6TX 0x04 +#define OUT_FUNC_SS2 0x06 +#define OUT_FUNC_SDO4 0x08 +#define OUT_FUNC_SDO6 0x0A +#define OUT_FUNC_OC2 0x0B +#define OUT_FUNC_OC1 0x0C +#define OUT_FUNC_OC9 0x0D +#define OUT_FUNC_C2TX 0x0F + +void pic32_pps_input(int function, int pin); +void pic32_pps_output(int function, int pin); + +#endif diff --git a/arch/mips/pic32/pic32mzda/init.c b/arch/mips/pic32/pic32mzda/init.c new file mode 100644 index 000000000000..775ff90a9962 --- /dev/null +++ b/arch/mips/pic32/pic32mzda/init.c @@ -0,0 +1,156 @@ +/* + * Joshua Henderson, joshua.henderson@microchip.com + * Copyright (C) 2015 Microchip Technology Inc. All rights reserved. + * + * This program is free software; you can distribute it and/or modify it + * under the terms of the GNU General Public License (Version 2) as + * published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/of_address.h> +#include <linux/of_fdt.h> +#include <linux/of_platform.h> +#include <linux/platform_data/sdhci-pic32.h> + +#include <asm/fw/fw.h> +#include <asm/mips-boards/generic.h> +#include <asm/prom.h> + +#include "pic32mzda.h" + +const char *get_system_type(void) +{ + return "PIC32MZDA"; +} + +static ulong get_fdtaddr(void) +{ + ulong ftaddr = 0; + + if ((fw_arg0 == -2) && fw_arg1 && !fw_arg2 && !fw_arg3) + return (ulong)fw_arg1; + + if (__dtb_start < __dtb_end) + ftaddr = (ulong)__dtb_start; + + return ftaddr; +} + +void __init plat_mem_setup(void) +{ + void *dtb; + + dtb = (void *)get_fdtaddr(); + if (!dtb) { + pr_err("pic32: no DTB found.\n"); + return; + } + + /* + * Load the builtin device tree. This causes the chosen node to be + * parsed resulting in our memory appearing. + */ + __dt_setup_arch(dtb); + + pr_info("Found following command lines\n"); + pr_info(" boot_command_line: %s\n", boot_command_line); + pr_info(" arcs_cmdline : %s\n", arcs_cmdline); +#ifdef CONFIG_CMDLINE_BOOL + pr_info(" builtin_cmdline : %s\n", CONFIG_CMDLINE); +#endif + if (dtb != __dtb_start) + strlcpy(arcs_cmdline, boot_command_line, COMMAND_LINE_SIZE); + +#ifdef CONFIG_EARLY_PRINTK + fw_init_early_console(-1); +#endif + pic32_config_init(); +} + +static __init void pic32_init_cmdline(int argc, char *argv[]) +{ + unsigned int count = COMMAND_LINE_SIZE - 1; + int i; + char *dst = &(arcs_cmdline[0]); + char *src; + + for (i = 1; i < argc && count; ++i) { + src = argv[i]; + while (*src && count) { + *dst++ = *src++; + --count; + } + *dst++ = ' '; + } + if (i > 1) + --dst; + + *dst = 0; +} + +void __init prom_init(void) +{ + pic32_init_cmdline((int)fw_arg0, (char **)fw_arg1); +} + +void __init prom_free_prom_memory(void) +{ +} + +void __init device_tree_init(void) +{ + if (!initial_boot_params) + return; + + unflatten_and_copy_device_tree(); +} + +static struct pic32_sdhci_platform_data sdhci_data = { + .setup_dma = pic32_set_sdhci_adma_fifo_threshold, +}; + +static struct of_dev_auxdata pic32_auxdata_lookup[] __initdata = { + OF_DEV_AUXDATA("microchip,pic32mzda-sdhci", 0, "sdhci", &sdhci_data), + { /* sentinel */} +}; + +static int __init pic32_of_prepare_platform_data(struct of_dev_auxdata *lookup) +{ + struct device_node *root, *np; + struct resource res; + + root = of_find_node_by_path("/"); + + for (; lookup->compatible; lookup++) { + np = of_find_compatible_node(NULL, NULL, lookup->compatible); + if (np) { + lookup->name = (char *)np->name; + if (lookup->phys_addr) + continue; + if (!of_address_to_resource(np, 0, &res)) + lookup->phys_addr = res.start; + } + } + + return 0; +} + +static int __init plat_of_setup(void) +{ + if (!of_have_populated_dt()) + panic("Device tree not present"); + + pic32_of_prepare_platform_data(pic32_auxdata_lookup); + if (of_platform_populate(NULL, of_default_bus_match_table, + pic32_auxdata_lookup, NULL)) + panic("Failed to populate DT"); + + return 0; +} +arch_initcall(plat_of_setup); diff --git a/arch/mips/pic32/pic32mzda/pic32mzda.h b/arch/mips/pic32/pic32mzda/pic32mzda.h new file mode 100644 index 000000000000..96d10e2af475 --- /dev/null +++ b/arch/mips/pic32/pic32mzda/pic32mzda.h @@ -0,0 +1,29 @@ +/* + * Joshua Henderson <joshua.henderson@microchip.com> + * Copyright (C) 2015 Microchip Technology Inc. All rights reserved. + * + * This program is free software; you can distribute it and/or modify it + * under the terms of the GNU General Public License (Version 2) as + * published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ +#ifndef PIC32MZDA_COMMON_H +#define PIC32MZDA_COMMON_H + +/* early clock */ +u32 pic32_get_pbclk(int bus); +u32 pic32_get_sysclk(void); + +/* Device configuration */ +void __init pic32_config_init(void); +int pic32_set_lcd_mode(int mode); +int pic32_set_sdhci_adma_fifo_threshold(u32 rthrs, u32 wthrs); +u32 pic32_get_boot_status(void); +int pic32_disable_lcd(void); +int pic32_enable_lcd(void); + +#endif diff --git a/arch/mips/pic32/pic32mzda/time.c b/arch/mips/pic32/pic32mzda/time.c new file mode 100644 index 000000000000..ca6a62bb10db --- /dev/null +++ b/arch/mips/pic32/pic32mzda/time.c @@ -0,0 +1,73 @@ +/* + * Joshua Henderson <joshua.henderson@microchip.com> + * Copyright (C) 2015 Microchip Technology Inc. All rights reserved. + * + * This program is free software; you can distribute it and/or modify it + * under the terms of the GNU General Public License (Version 2) as + * published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ +#include <linux/clk.h> +#include <linux/clk-provider.h> +#include <linux/clocksource.h> +#include <linux/init.h> +#include <linux/of.h> +#include <linux/of_irq.h> +#include <linux/irqdomain.h> + +#include <asm/time.h> + +#include "pic32mzda.h" + +static const struct of_device_id pic32_infra_match[] = { + { .compatible = "microchip,pic32mzda-infra", }, + { }, +}; + +#define DEFAULT_CORE_TIMER_INTERRUPT 0 + +static unsigned int pic32_xlate_core_timer_irq(void) +{ + static struct device_node *node; + unsigned int irq; + + node = of_find_matching_node(NULL, pic32_infra_match); + + if (WARN_ON(!node)) + goto default_map; + + irq = irq_of_parse_and_map(node, 0); + if (!irq) + goto default_map; + + return irq; + +default_map: + + return irq_create_mapping(NULL, DEFAULT_CORE_TIMER_INTERRUPT); +} + +unsigned int get_c0_compare_int(void) +{ + return pic32_xlate_core_timer_irq(); +} + +void __init plat_time_init(void) +{ + struct clk *clk; + + of_clk_init(NULL); + clk = clk_get_sys("cpu_clk", NULL); + if (IS_ERR(clk)) + panic("unable to get CPU clock, err=%ld", PTR_ERR(clk)); + + clk_prepare_enable(clk); + pr_info("CPU Clock: %ldMHz\n", clk_get_rate(clk) / 1000000); + mips_hpt_frequency = clk_get_rate(clk) / 2; + + clocksource_probe(); +} diff --git a/arch/mips/ralink/Kconfig b/arch/mips/ralink/Kconfig index e9bc8c96174e..813826a456ca 100644 --- a/arch/mips/ralink/Kconfig +++ b/arch/mips/ralink/Kconfig @@ -12,6 +12,11 @@ config RALINK_ILL_ACC depends on SOC_RT305X default y +config IRQ_INTC + bool + default y + depends on !SOC_MT7621 + choice prompt "Ralink SoC selection" default SOC_RT305X @@ -33,7 +38,18 @@ choice config SOC_MT7620 bool "MT7620/8" + select HW_HAS_PCI + config SOC_MT7621 + bool "MT7621" + select MIPS_CPU_SCACHE + select SYS_SUPPORTS_MULTITHREADING + select SYS_SUPPORTS_SMP + select SYS_SUPPORTS_MIPS_CPS + select MIPS_GIC + select COMMON_CLK + select CLKSRC_MIPS_GIC + select HW_HAS_PCI endchoice choice diff --git a/arch/mips/ralink/Makefile b/arch/mips/ralink/Makefile index a6c9d0061326..0d1795a0321e 100644 --- a/arch/mips/ralink/Makefile +++ b/arch/mips/ralink/Makefile @@ -6,16 +6,24 @@ # Copyright (C) 2009-2011 Gabor Juhos <juhosg@openwrt.org> # Copyright (C) 2013 John Crispin <blogic@openwrt.org> -obj-y := prom.o of.o reset.o clk.o irq.o timer.o +obj-y := prom.o of.o reset.o + +ifndef CONFIG_MIPS_GIC + obj-y += clk.o timer.o +endif obj-$(CONFIG_CLKEVT_RT3352) += cevt-rt3352.o obj-$(CONFIG_RALINK_ILL_ACC) += ill_acc.o +obj-$(CONFIG_IRQ_INTC) += irq.o +obj-$(CONFIG_MIPS_GIC) += irq-gic.o timer-gic.o + obj-$(CONFIG_SOC_RT288X) += rt288x.o obj-$(CONFIG_SOC_RT305X) += rt305x.o obj-$(CONFIG_SOC_RT3883) += rt3883.o obj-$(CONFIG_SOC_MT7620) += mt7620.o +obj-$(CONFIG_SOC_MT7621) += mt7621.o obj-$(CONFIG_EARLY_PRINTK) += early_printk.o diff --git a/arch/mips/ralink/Platform b/arch/mips/ralink/Platform index 6d9c8c499f98..6095fcc334f4 100644 --- a/arch/mips/ralink/Platform +++ b/arch/mips/ralink/Platform @@ -27,3 +27,8 @@ cflags-$(CONFIG_SOC_RT3883) += -I$(srctree)/arch/mips/include/asm/mach-ralink/rt # load-$(CONFIG_SOC_MT7620) += 0xffffffff80000000 cflags-$(CONFIG_SOC_MT7620) += -I$(srctree)/arch/mips/include/asm/mach-ralink/mt7620 + +# Ralink MT7621 +# +load-$(CONFIG_SOC_MT7621) += 0xffffffff80001000 +cflags-$(CONFIG_SOC_MT7621) += -I$(srctree)/arch/mips/include/asm/mach-ralink/mt7621 diff --git a/arch/mips/ralink/irq-gic.c b/arch/mips/ralink/irq-gic.c new file mode 100644 index 000000000000..50d6c55ab1de --- /dev/null +++ b/arch/mips/ralink/irq-gic.c @@ -0,0 +1,25 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + * Copyright (C) 2015 Nikolay Martynov <mar.kolya@gmail.com> + * Copyright (C) 2015 John Crispin <blogic@openwrt.org> + */ + +#include <linux/init.h> + +#include <linux/of.h> +#include <linux/irqchip.h> +#include <linux/irqchip/mips-gic.h> + +int get_c0_perfcount_int(void) +{ + return gic_get_c0_perfcount_int(); +} +EXPORT_SYMBOL_GPL(get_c0_perfcount_int); + +void __init arch_init_irq(void) +{ + irqchip_init(); +} diff --git a/arch/mips/ralink/mt7620.c b/arch/mips/ralink/mt7620.c index dfb04fcedb04..0d3d1a97895f 100644 --- a/arch/mips/ralink/mt7620.c +++ b/arch/mips/ralink/mt7620.c @@ -107,31 +107,31 @@ static struct rt2880_pmx_group mt7620a_pinmux_data[] = { }; static struct rt2880_pmx_func pwm1_grp_mt7628[] = { - FUNC("sdcx", 3, 19, 1), + FUNC("sdxc d6", 3, 19, 1), FUNC("utif", 2, 19, 1), FUNC("gpio", 1, 19, 1), - FUNC("pwm", 0, 19, 1), + FUNC("pwm1", 0, 19, 1), }; static struct rt2880_pmx_func pwm0_grp_mt7628[] = { - FUNC("sdcx", 3, 18, 1), + FUNC("sdxc d7", 3, 18, 1), FUNC("utif", 2, 18, 1), FUNC("gpio", 1, 18, 1), - FUNC("pwm", 0, 18, 1), + FUNC("pwm0", 0, 18, 1), }; static struct rt2880_pmx_func uart2_grp_mt7628[] = { - FUNC("sdcx", 3, 20, 2), + FUNC("sdxc d5 d4", 3, 20, 2), FUNC("pwm", 2, 20, 2), FUNC("gpio", 1, 20, 2), - FUNC("uart", 0, 20, 2), + FUNC("uart2", 0, 20, 2), }; static struct rt2880_pmx_func uart1_grp_mt7628[] = { - FUNC("sdcx", 3, 45, 2), + FUNC("sw_r", 3, 45, 2), FUNC("pwm", 2, 45, 2), FUNC("gpio", 1, 45, 2), - FUNC("uart", 0, 45, 2), + FUNC("uart1", 0, 45, 2), }; static struct rt2880_pmx_func i2c_grp_mt7628[] = { @@ -143,21 +143,21 @@ static struct rt2880_pmx_func i2c_grp_mt7628[] = { static struct rt2880_pmx_func refclk_grp_mt7628[] = { FUNC("reclk", 0, 36, 1) }; static struct rt2880_pmx_func perst_grp_mt7628[] = { FUNC("perst", 0, 37, 1) }; -static struct rt2880_pmx_func wdt_grp_mt7628[] = { FUNC("wdt", 0, 15, 38) }; +static struct rt2880_pmx_func wdt_grp_mt7628[] = { FUNC("wdt", 0, 38, 1) }; static struct rt2880_pmx_func spi_grp_mt7628[] = { FUNC("spi", 0, 7, 4) }; static struct rt2880_pmx_func sd_mode_grp_mt7628[] = { FUNC("jtag", 3, 22, 8), FUNC("utif", 2, 22, 8), FUNC("gpio", 1, 22, 8), - FUNC("sdcx", 0, 22, 8), + FUNC("sdxc", 0, 22, 8), }; static struct rt2880_pmx_func uart0_grp_mt7628[] = { FUNC("-", 3, 12, 2), FUNC("-", 2, 12, 2), FUNC("gpio", 1, 12, 2), - FUNC("uart", 0, 12, 2), + FUNC("uart0", 0, 12, 2), }; static struct rt2880_pmx_func i2s_grp_mt7628[] = { @@ -171,7 +171,7 @@ static struct rt2880_pmx_func spi_cs1_grp_mt7628[] = { FUNC("-", 3, 6, 1), FUNC("refclk", 2, 6, 1), FUNC("gpio", 1, 6, 1), - FUNC("spi", 0, 6, 1), + FUNC("spi cs1", 0, 6, 1), }; static struct rt2880_pmx_func spis_grp_mt7628[] = { @@ -188,28 +188,44 @@ static struct rt2880_pmx_func gpio_grp_mt7628[] = { FUNC("gpio", 0, 11, 1), }; -#define MT7628_GPIO_MODE_MASK 0x3 - -#define MT7628_GPIO_MODE_PWM1 30 -#define MT7628_GPIO_MODE_PWM0 28 -#define MT7628_GPIO_MODE_UART2 26 -#define MT7628_GPIO_MODE_UART1 24 -#define MT7628_GPIO_MODE_I2C 20 -#define MT7628_GPIO_MODE_REFCLK 18 -#define MT7628_GPIO_MODE_PERST 16 -#define MT7628_GPIO_MODE_WDT 14 -#define MT7628_GPIO_MODE_SPI 12 -#define MT7628_GPIO_MODE_SDMODE 10 -#define MT7628_GPIO_MODE_UART0 8 -#define MT7628_GPIO_MODE_I2S 6 -#define MT7628_GPIO_MODE_CS1 4 -#define MT7628_GPIO_MODE_SPIS 2 -#define MT7628_GPIO_MODE_GPIO 0 +static struct rt2880_pmx_func wled_kn_grp_mt7628[] = { + FUNC("rsvd", 3, 35, 1), + FUNC("rsvd", 2, 35, 1), + FUNC("gpio", 1, 35, 1), + FUNC("wled_kn", 0, 35, 1), +}; + +static struct rt2880_pmx_func wled_an_grp_mt7628[] = { + FUNC("rsvd", 3, 35, 1), + FUNC("rsvd", 2, 35, 1), + FUNC("gpio", 1, 35, 1), + FUNC("wled_an", 0, 35, 1), +}; + +#define MT7628_GPIO_MODE_MASK 0x3 + +#define MT7628_GPIO_MODE_WLED_KN 48 +#define MT7628_GPIO_MODE_WLED_AN 32 +#define MT7628_GPIO_MODE_PWM1 30 +#define MT7628_GPIO_MODE_PWM0 28 +#define MT7628_GPIO_MODE_UART2 26 +#define MT7628_GPIO_MODE_UART1 24 +#define MT7628_GPIO_MODE_I2C 20 +#define MT7628_GPIO_MODE_REFCLK 18 +#define MT7628_GPIO_MODE_PERST 16 +#define MT7628_GPIO_MODE_WDT 14 +#define MT7628_GPIO_MODE_SPI 12 +#define MT7628_GPIO_MODE_SDMODE 10 +#define MT7628_GPIO_MODE_UART0 8 +#define MT7628_GPIO_MODE_I2S 6 +#define MT7628_GPIO_MODE_CS1 4 +#define MT7628_GPIO_MODE_SPIS 2 +#define MT7628_GPIO_MODE_GPIO 0 static struct rt2880_pmx_group mt7628an_pinmux_data[] = { GRP_G("pmw1", pwm1_grp_mt7628, MT7628_GPIO_MODE_MASK, 1, MT7628_GPIO_MODE_PWM1), - GRP_G("pmw1", pwm0_grp_mt7628, MT7628_GPIO_MODE_MASK, + GRP_G("pmw0", pwm0_grp_mt7628, MT7628_GPIO_MODE_MASK, 1, MT7628_GPIO_MODE_PWM0), GRP_G("uart2", uart2_grp_mt7628, MT7628_GPIO_MODE_MASK, 1, MT7628_GPIO_MODE_UART2), @@ -233,6 +249,10 @@ static struct rt2880_pmx_group mt7628an_pinmux_data[] = { 1, MT7628_GPIO_MODE_SPIS), GRP_G("gpio", gpio_grp_mt7628, MT7628_GPIO_MODE_MASK, 1, MT7628_GPIO_MODE_GPIO), + GRP_G("wled_an", wled_an_grp_mt7628, MT7628_GPIO_MODE_MASK, + 1, MT7628_GPIO_MODE_WLED_AN), + GRP_G("wled_kn", wled_kn_grp_mt7628, MT7628_GPIO_MODE_MASK, + 1, MT7628_GPIO_MODE_WLED_KN), { 0 } }; @@ -436,10 +456,13 @@ void __init ralink_clk_init(void) ralink_clk_add("10000100.timer", periph_rate); ralink_clk_add("10000120.watchdog", periph_rate); ralink_clk_add("10000b00.spi", sys_rate); + ralink_clk_add("10000b40.spi", sys_rate); ralink_clk_add("10000c00.uartlite", periph_rate); + ralink_clk_add("10000d00.uart1", periph_rate); + ralink_clk_add("10000e00.uart2", periph_rate); ralink_clk_add("10180000.wmac", xtal_rate); - if (IS_ENABLED(CONFIG_USB) && is_mt76x8()) { + if (IS_ENABLED(CONFIG_USB) && !is_mt76x8()) { /* * When the CPU goes into sleep mode, the BUS clock will be * too low for USB to function properly. Adjust the busses @@ -552,7 +575,7 @@ void prom_soc_init(struct ralink_soc_info *soc_info) } snprintf(soc_info->sys_type, RAMIPS_SYS_TYPE_LEN, - "Ralink %s ver:%u eco:%u", + "MediaTek %s ver:%u eco:%u", name, (rev >> CHIP_REV_VER_SHIFT) & CHIP_REV_VER_MASK, (rev & CHIP_REV_ECO_MASK)); diff --git a/arch/mips/ralink/mt7621.c b/arch/mips/ralink/mt7621.c new file mode 100644 index 000000000000..e9b9fa3e1e51 --- /dev/null +++ b/arch/mips/ralink/mt7621.c @@ -0,0 +1,226 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + * Copyright (C) 2015 Nikolay Martynov <mar.kolya@gmail.com> + * Copyright (C) 2015 John Crispin <blogic@openwrt.org> + */ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/module.h> + +#include <asm/mipsregs.h> +#include <asm/smp-ops.h> +#include <asm/mips-cm.h> +#include <asm/mips-cpc.h> +#include <asm/mach-ralink/ralink_regs.h> +#include <asm/mach-ralink/mt7621.h> + +#include <pinmux.h> + +#include "common.h" + +#define SYSC_REG_SYSCFG 0x10 +#define SYSC_REG_CPLL_CLKCFG0 0x2c +#define SYSC_REG_CUR_CLK_STS 0x44 +#define CPU_CLK_SEL (BIT(30) | BIT(31)) + +#define MT7621_GPIO_MODE_UART1 1 +#define MT7621_GPIO_MODE_I2C 2 +#define MT7621_GPIO_MODE_UART3_MASK 0x3 +#define MT7621_GPIO_MODE_UART3_SHIFT 3 +#define MT7621_GPIO_MODE_UART3_GPIO 1 +#define MT7621_GPIO_MODE_UART2_MASK 0x3 +#define MT7621_GPIO_MODE_UART2_SHIFT 5 +#define MT7621_GPIO_MODE_UART2_GPIO 1 +#define MT7621_GPIO_MODE_JTAG 7 +#define MT7621_GPIO_MODE_WDT_MASK 0x3 +#define MT7621_GPIO_MODE_WDT_SHIFT 8 +#define MT7621_GPIO_MODE_WDT_GPIO 1 +#define MT7621_GPIO_MODE_PCIE_RST 0 +#define MT7621_GPIO_MODE_PCIE_REF 2 +#define MT7621_GPIO_MODE_PCIE_MASK 0x3 +#define MT7621_GPIO_MODE_PCIE_SHIFT 10 +#define MT7621_GPIO_MODE_PCIE_GPIO 1 +#define MT7621_GPIO_MODE_MDIO_MASK 0x3 +#define MT7621_GPIO_MODE_MDIO_SHIFT 12 +#define MT7621_GPIO_MODE_MDIO_GPIO 1 +#define MT7621_GPIO_MODE_RGMII1 14 +#define MT7621_GPIO_MODE_RGMII2 15 +#define MT7621_GPIO_MODE_SPI_MASK 0x3 +#define MT7621_GPIO_MODE_SPI_SHIFT 16 +#define MT7621_GPIO_MODE_SPI_GPIO 1 +#define MT7621_GPIO_MODE_SDHCI_MASK 0x3 +#define MT7621_GPIO_MODE_SDHCI_SHIFT 18 +#define MT7621_GPIO_MODE_SDHCI_GPIO 1 + +static struct rt2880_pmx_func uart1_grp[] = { FUNC("uart1", 0, 1, 2) }; +static struct rt2880_pmx_func i2c_grp[] = { FUNC("i2c", 0, 3, 2) }; +static struct rt2880_pmx_func uart3_grp[] = { + FUNC("uart3", 0, 5, 4), + FUNC("i2s", 2, 5, 4), + FUNC("spdif3", 3, 5, 4), +}; +static struct rt2880_pmx_func uart2_grp[] = { + FUNC("uart2", 0, 9, 4), + FUNC("pcm", 2, 9, 4), + FUNC("spdif2", 3, 9, 4), +}; +static struct rt2880_pmx_func jtag_grp[] = { FUNC("jtag", 0, 13, 5) }; +static struct rt2880_pmx_func wdt_grp[] = { + FUNC("wdt rst", 0, 18, 1), + FUNC("wdt refclk", 2, 18, 1), +}; +static struct rt2880_pmx_func pcie_rst_grp[] = { + FUNC("pcie rst", MT7621_GPIO_MODE_PCIE_RST, 19, 1), + FUNC("pcie refclk", MT7621_GPIO_MODE_PCIE_REF, 19, 1) +}; +static struct rt2880_pmx_func mdio_grp[] = { FUNC("mdio", 0, 20, 2) }; +static struct rt2880_pmx_func rgmii2_grp[] = { FUNC("rgmii2", 0, 22, 12) }; +static struct rt2880_pmx_func spi_grp[] = { + FUNC("spi", 0, 34, 7), + FUNC("nand1", 2, 34, 7), +}; +static struct rt2880_pmx_func sdhci_grp[] = { + FUNC("sdhci", 0, 41, 8), + FUNC("nand2", 2, 41, 8), +}; +static struct rt2880_pmx_func rgmii1_grp[] = { FUNC("rgmii1", 0, 49, 12) }; + +static struct rt2880_pmx_group mt7621_pinmux_data[] = { + GRP("uart1", uart1_grp, 1, MT7621_GPIO_MODE_UART1), + GRP("i2c", i2c_grp, 1, MT7621_GPIO_MODE_I2C), + GRP_G("uart3", uart3_grp, MT7621_GPIO_MODE_UART3_MASK, + MT7621_GPIO_MODE_UART3_GPIO, MT7621_GPIO_MODE_UART3_SHIFT), + GRP_G("uart2", uart2_grp, MT7621_GPIO_MODE_UART2_MASK, + MT7621_GPIO_MODE_UART2_GPIO, MT7621_GPIO_MODE_UART2_SHIFT), + GRP("jtag", jtag_grp, 1, MT7621_GPIO_MODE_JTAG), + GRP_G("wdt", wdt_grp, MT7621_GPIO_MODE_WDT_MASK, + MT7621_GPIO_MODE_WDT_GPIO, MT7621_GPIO_MODE_WDT_SHIFT), + GRP_G("pcie", pcie_rst_grp, MT7621_GPIO_MODE_PCIE_MASK, + MT7621_GPIO_MODE_PCIE_GPIO, MT7621_GPIO_MODE_PCIE_SHIFT), + GRP_G("mdio", mdio_grp, MT7621_GPIO_MODE_MDIO_MASK, + MT7621_GPIO_MODE_MDIO_GPIO, MT7621_GPIO_MODE_MDIO_SHIFT), + GRP("rgmii2", rgmii2_grp, 1, MT7621_GPIO_MODE_RGMII2), + GRP_G("spi", spi_grp, MT7621_GPIO_MODE_SPI_MASK, + MT7621_GPIO_MODE_SPI_GPIO, MT7621_GPIO_MODE_SPI_SHIFT), + GRP_G("sdhci", sdhci_grp, MT7621_GPIO_MODE_SDHCI_MASK, + MT7621_GPIO_MODE_SDHCI_GPIO, MT7621_GPIO_MODE_SDHCI_SHIFT), + GRP("rgmii1", rgmii1_grp, 1, MT7621_GPIO_MODE_RGMII1), + { 0 } +}; + +phys_addr_t mips_cpc_default_phys_base(void) +{ + panic("Cannot detect cpc address"); +} + +void __init ralink_clk_init(void) +{ + int cpu_fdiv = 0; + int cpu_ffrac = 0; + int fbdiv = 0; + u32 clk_sts, syscfg; + u8 clk_sel = 0, xtal_mode; + u32 cpu_clk; + + if ((rt_sysc_r32(SYSC_REG_CPLL_CLKCFG0) & CPU_CLK_SEL) != 0) + clk_sel = 1; + + switch (clk_sel) { + case 0: + clk_sts = rt_sysc_r32(SYSC_REG_CUR_CLK_STS); + cpu_fdiv = ((clk_sts >> 8) & 0x1F); + cpu_ffrac = (clk_sts & 0x1F); + cpu_clk = (500 * cpu_ffrac / cpu_fdiv) * 1000 * 1000; + break; + + case 1: + fbdiv = ((rt_sysc_r32(0x648) >> 4) & 0x7F) + 1; + syscfg = rt_sysc_r32(SYSC_REG_SYSCFG); + xtal_mode = (syscfg >> 6) & 0x7; + if (xtal_mode >= 6) { + /* 25Mhz Xtal */ + cpu_clk = 25 * fbdiv * 1000 * 1000; + } else if (xtal_mode >= 3) { + /* 40Mhz Xtal */ + cpu_clk = 40 * fbdiv * 1000 * 1000; + } else { + /* 20Mhz Xtal */ + cpu_clk = 20 * fbdiv * 1000 * 1000; + } + break; + } +} + +void __init ralink_of_remap(void) +{ + rt_sysc_membase = plat_of_remap_node("mtk,mt7621-sysc"); + rt_memc_membase = plat_of_remap_node("mtk,mt7621-memc"); + + if (!rt_sysc_membase || !rt_memc_membase) + panic("Failed to remap core resources"); +} + +void prom_soc_init(struct ralink_soc_info *soc_info) +{ + void __iomem *sysc = (void __iomem *) KSEG1ADDR(MT7621_SYSC_BASE); + unsigned char *name = NULL; + u32 n0; + u32 n1; + u32 rev; + + n0 = __raw_readl(sysc + SYSC_REG_CHIP_NAME0); + n1 = __raw_readl(sysc + SYSC_REG_CHIP_NAME1); + + if (n0 == MT7621_CHIP_NAME0 && n1 == MT7621_CHIP_NAME1) { + name = "MT7621"; + soc_info->compatible = "mtk,mt7621-soc"; + } else { + panic("mt7621: unknown SoC, n0:%08x n1:%08x\n", n0, n1); + } + + rev = __raw_readl(sysc + SYSC_REG_CHIP_REV); + + snprintf(soc_info->sys_type, RAMIPS_SYS_TYPE_LEN, + "MediaTek %s ver:%u eco:%u", + name, + (rev >> CHIP_REV_VER_SHIFT) & CHIP_REV_VER_MASK, + (rev & CHIP_REV_ECO_MASK)); + + soc_info->mem_size_min = MT7621_DDR2_SIZE_MIN; + soc_info->mem_size_max = MT7621_DDR2_SIZE_MAX; + soc_info->mem_base = MT7621_DRAM_BASE; + + rt2880_pinmux_data = mt7621_pinmux_data; + + /* Early detection of CMP support */ + mips_cm_probe(); + mips_cpc_probe(); + + if (mips_cm_numiocu()) { + /* + * mips_cm_probe() wipes out bootloader + * config for CM regions and we have to configure them + * again. This SoC cannot talk to pamlbus devices + * witout proper iocu region set up. + * + * FIXME: it would be better to do this with values + * from DT, but we need this very early because + * without this we cannot talk to pretty much anything + * including serial. + */ + write_gcr_reg0_base(MT7621_PALMBUS_BASE); + write_gcr_reg0_mask(~MT7621_PALMBUS_SIZE | + CM_GCR_REGn_MASK_CMTGT_IOCU0); + } + + if (!register_cps_smp_ops()) + return; + if (!register_cmp_smp_ops()) + return; + if (!register_vsmp_smp_ops()) + return; +} diff --git a/arch/mips/ralink/rt288x.c b/arch/mips/ralink/rt288x.c index 844f5cd55c8f..3c84166ebcb7 100644 --- a/arch/mips/ralink/rt288x.c +++ b/arch/mips/ralink/rt288x.c @@ -119,5 +119,5 @@ void prom_soc_init(struct ralink_soc_info *soc_info) soc_info->mem_size_max = RT2880_MEM_SIZE_MAX; rt2880_pinmux_data = rt2880_pinmux_data_act; - ralink_soc == RT2880_SOC; + ralink_soc = RT2880_SOC; } diff --git a/arch/mips/ralink/rt305x.c b/arch/mips/ralink/rt305x.c index 9e4572592065..d7c4ba43a428 100644 --- a/arch/mips/ralink/rt305x.c +++ b/arch/mips/ralink/rt305x.c @@ -201,6 +201,7 @@ void __init ralink_clk_init(void) ralink_clk_add("cpu", cpu_rate); ralink_clk_add("sys", sys_rate); ralink_clk_add("10000b00.spi", sys_rate); + ralink_clk_add("10000b40.spi", sys_rate); ralink_clk_add("10000100.timer", wdt_rate); ralink_clk_add("10000120.watchdog", wdt_rate); ralink_clk_add("10000500.uart", uart_rate); diff --git a/arch/mips/ralink/rt3883.c b/arch/mips/ralink/rt3883.c index 582995aaaf4e..fafec947b27d 100644 --- a/arch/mips/ralink/rt3883.c +++ b/arch/mips/ralink/rt3883.c @@ -109,6 +109,7 @@ void __init ralink_clk_init(void) ralink_clk_add("10000120.watchdog", sys_rate); ralink_clk_add("10000500.uart", 40000000); ralink_clk_add("10000b00.spi", sys_rate); + ralink_clk_add("10000b40.spi", sys_rate); ralink_clk_add("10000c00.uartlite", 40000000); ralink_clk_add("10100000.ethernet", sys_rate); ralink_clk_add("10180000.wmac", 40000000); diff --git a/arch/mips/ralink/timer-gic.c b/arch/mips/ralink/timer-gic.c new file mode 100644 index 000000000000..5b4f186bcf95 --- /dev/null +++ b/arch/mips/ralink/timer-gic.c @@ -0,0 +1,24 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + * Copyright (C) 2015 Nikolay Martynov <mar.kolya@gmail.com> + * Copyright (C) 2015 John Crispin <blogic@openwrt.org> + */ + +#include <linux/init.h> + +#include <linux/of.h> +#include <linux/clk-provider.h> +#include <linux/clocksource.h> + +#include "common.h" + +void __init plat_time_init(void) +{ + ralink_of_remap(); + + of_clk_init(NULL); + clocksource_probe(); +} diff --git a/arch/mips/rb532/gpio.c b/arch/mips/rb532/gpio.c index 650d5d39f34d..fd1108543a71 100644 --- a/arch/mips/rb532/gpio.c +++ b/arch/mips/rb532/gpio.c @@ -89,7 +89,7 @@ static int rb532_gpio_get(struct gpio_chip *chip, unsigned offset) struct rb532_gpio_chip *gpch; gpch = container_of(chip, struct rb532_gpio_chip, chip); - return rb532_get_bit(offset, gpch->regbase + GPIOD); + return !!rb532_get_bit(offset, gpch->regbase + GPIOD); } /* diff --git a/arch/mips/txx9/generic/setup.c b/arch/mips/txx9/generic/setup.c index 9d9962ab7d25..2fd350f31f4b 100644 --- a/arch/mips/txx9/generic/setup.c +++ b/arch/mips/txx9/generic/setup.c @@ -689,7 +689,7 @@ static int txx9_iocled_get(struct gpio_chip *chip, unsigned int offset) { struct txx9_iocled_data *data = container_of(chip, struct txx9_iocled_data, chip); - return data->cur_val & (1 << offset); + return !!(data->cur_val & (1 << offset)); } static void txx9_iocled_set(struct gpio_chip *chip, unsigned int offset, |