MIPS: Loongson: Naming style cleanup and rework

Currently, code of Loongson-2/3 is under loongson directory and code of
Loongson-1 is under loongson1 directory. Besides, there are Kconfig
options such as MACH_LOONGSON and MACH_LOONGSON1. This naming style is
very ugly and confusing. Since Loongson-2/3 are both 64-bit general-
purpose CPU while Loongson-1 is 32-bit SoC, we rename both file names
and Kconfig symbols from loongson/loongson1 to loongson64/loongson32.

[ralf@linux-mips.org: Resolve a number of simple conflicts.]

Signed-off-by: Huacai Chen <chenhc@lemote.com>
Cc: Steven J. Hill <Steven.Hill@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: Fuxin Zhang <zhangfx@lemote.com>
Cc: Zhangjin Wu <wuzhangjin@gmail.com>
Cc: Kelvin Cheung <keguang.zhang@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/9790/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 158 insertions, 0 deletions

diff --git a/arch/mips/loongson64/Kconfig b/arch/mips/loongson64/Kconfig
new file mode 100644
index 000000000000..497912b38d8e
--- /dev/null
+++ b/arch/mips/loongson64/Kconfig
@@ -0,0 +1,158 @@
+if MACH_LOONGSON64
+
+choice
+	prompt "Machine Type"
+
+config LEMOTE_FULOONG2E
+	bool "Lemote Fuloong(2e) mini-PC"
+	select ARCH_SPARSEMEM_ENABLE
+	select CEVT_R4K
+	select CSRC_R4K
+	select SYS_HAS_CPU_LOONGSON2E
+	select DMA_NONCOHERENT
+	select BOOT_ELF32
+	select BOARD_SCACHE
+	select HW_HAS_PCI
+	select I8259
+	select ISA
+	select IRQ_MIPS_CPU
+	select SYS_SUPPORTS_32BIT_KERNEL
+	select SYS_SUPPORTS_64BIT_KERNEL
+	select SYS_SUPPORTS_LITTLE_ENDIAN
+	select SYS_SUPPORTS_HIGHMEM
+	select SYS_HAS_EARLY_PRINTK
+	select GENERIC_ISA_DMA_SUPPORT_BROKEN
+	select CPU_HAS_WB
+	select LOONGSON_MC146818
+	help
+	  Lemote Fuloong(2e) mini-PC board based on the Chinese Loongson-2E CPU and
+	  an FPGA northbridge
+
+	  Lemote Fuloong(2e) mini PC have a VIA686B south bridge.
+
+config LEMOTE_MACH2F
+	bool "Lemote Loongson 2F family machines"
+	select ARCH_SPARSEMEM_ENABLE
+	select BOARD_SCACHE
+	select BOOT_ELF32
+	select CEVT_R4K if ! MIPS_EXTERNAL_TIMER
+	select CPU_HAS_WB
+	select CS5536
+	select CSRC_R4K if ! MIPS_EXTERNAL_TIMER
+	select DMA_NONCOHERENT
+	select GENERIC_ISA_DMA_SUPPORT_BROKEN
+	select HAVE_CLK
+	select HW_HAS_PCI
+	select I8259
+	select IRQ_MIPS_CPU
+	select ISA
+	select SYS_HAS_CPU_LOONGSON2F
+	select SYS_HAS_EARLY_PRINTK
+	select SYS_SUPPORTS_32BIT_KERNEL
+	select SYS_SUPPORTS_64BIT_KERNEL
+	select SYS_SUPPORTS_HIGHMEM
+	select SYS_SUPPORTS_LITTLE_ENDIAN
+	select LOONGSON_MC146818
+	help
+	  Lemote Loongson 2F family machines utilize the 2F revision of
+	  Loongson processor and the AMD CS5536 south bridge.
+
+	  These family machines include fuloong2f mini PC, yeeloong2f notebook,
+	  LingLoong allinone PC and so forth.
+
+config LOONGSON_MACH3X
+	bool "Generic Loongson 3 family machines"
+	select ARCH_SPARSEMEM_ENABLE
+	select GENERIC_ISA_DMA_SUPPORT_BROKEN
+	select BOOT_ELF32
+	select BOARD_SCACHE
+	select CSRC_R4K
+	select CEVT_R4K
+	select CPU_HAS_WB
+	select HW_HAS_PCI
+	select ISA
+	select HT_PCI
+	select I8259
+	select IRQ_MIPS_CPU
+	select NR_CPUS_DEFAULT_4
+	select SYS_HAS_CPU_LOONGSON3
+	select SYS_HAS_EARLY_PRINTK
+	select SYS_SUPPORTS_SMP
+	select SYS_SUPPORTS_HOTPLUG_CPU
+	select SYS_SUPPORTS_NUMA
+	select SYS_SUPPORTS_64BIT_KERNEL
+	select SYS_SUPPORTS_HIGHMEM
+	select SYS_SUPPORTS_LITTLE_ENDIAN
+	select LOONGSON_MC146818
+	select ZONE_DMA32
+	select LEFI_FIRMWARE_INTERFACE
+	select PHYS48_TO_HT40
+	help
+		Generic Loongson 3 family machines utilize the 3A/3B revision
+		of Loongson processor and RS780/SBX00 chipset.
+endchoice
+
+config CS5536
+	bool
+
+config CS5536_MFGPT
+	bool "CS5536 MFGPT Timer"
+	depends on CS5536 && !HIGH_RES_TIMERS
+	select MIPS_EXTERNAL_TIMER
+	help
+	  This option enables the mfgpt0 timer of AMD CS5536. With this timer
+	  switched on you can not use high resolution timers.
+
+	  If you want to enable the Loongson2 CPUFreq Driver, Please enable
+	  this option at first, otherwise, You will get wrong system time.
+
+	  If unsure, say Yes.
+
+config RS780_HPET
+	bool "RS780/SBX00 HPET Timer"
+	depends on LOONGSON_MACH3X
+	select MIPS_EXTERNAL_TIMER
+	help
+	  This option enables the hpet timer of AMD RS780/SBX00.
+
+	  If you want to enable the Loongson3 CPUFreq Driver, Please enable
+	  this option at first, otherwise, You will get wrong system time.
+
+	  If unsure, say Yes.
+
+config LOONGSON_SUSPEND
+	bool
+	default y
+	depends on CPU_SUPPORTS_CPUFREQ && SUSPEND
+
+config LOONGSON_UART_BASE
+	bool
+	default y
+	depends on EARLY_PRINTK || SERIAL_8250
+
+config IOMMU_HELPER
+	bool
+
+config NEED_SG_DMA_LENGTH
+	bool
+
+config SWIOTLB
+	bool "Soft IOMMU Support for All-Memory DMA"
+	default y
+	depends on CPU_LOONGSON3
+	select IOMMU_HELPER
+	select NEED_SG_DMA_LENGTH
+	select NEED_DMA_MAP_STATE
+
+config PHYS48_TO_HT40
+	bool
+	default y if CPU_LOONGSON3
+
+config LOONGSON_MC146818
+	bool
+	default n
+
+config LEFI_FIRMWARE_INTERFACE
+	bool
+
+endif # MACH_LOONGSON64