diff options
author | Arnd Bergmann <arnd@arndb.de> | 2013-03-19 21:59:59 +0100 |
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committer | Arnd Bergmann <arnd@arndb.de> | 2013-03-19 21:59:59 +0100 |
commit | e7b64391baff6969adeb7b0152c0317a9398fdda (patch) | |
tree | 7a5ce6fcfed620cf8e9fca388891e5a1cefb851a /arch/arm/mach-h720x/common.c | |
parent | 947906a6848a25a8ea4b09c9067654bb700d1534 (diff) | |
download | lwn-e7b64391baff6969adeb7b0152c0317a9398fdda.tar.gz lwn-e7b64391baff6969adeb7b0152c0317a9398fdda.zip |
ARM: kill Hynix h720x platform
The platform was merged about 10 years ago, and has seen few updates
for most of the time since. The people that merged the code seem
no longer interested in it either, so let's remove it now.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Robert Schwebel <r.schwebel@pengutronix.de>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch/arm/mach-h720x/common.c')
-rw-r--r-- | arch/arm/mach-h720x/common.c | 268 |
1 files changed, 0 insertions, 268 deletions
diff --git a/arch/arm/mach-h720x/common.c b/arch/arm/mach-h720x/common.c deleted file mode 100644 index 17ef91fa3d56..000000000000 --- a/arch/arm/mach-h720x/common.c +++ /dev/null @@ -1,268 +0,0 @@ -/* - * linux/arch/arm/mach-h720x/common.c - * - * Copyright (C) 2003 Thomas Gleixner <tglx@linutronix.de> - * 2003 Robert Schwebel <r.schwebel@pengutronix.de> - * 2004 Sascha Hauer <s.hauer@pengutronix.de> - * - * common stuff for Hynix h720x processors - * - * 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/sched.h> -#include <linux/mman.h> -#include <linux/init.h> -#include <linux/interrupt.h> -#include <linux/io.h> - -#include <asm/page.h> -#include <asm/pgtable.h> -#include <asm/dma.h> -#include <mach/hardware.h> -#include <asm/irq.h> -#include <asm/system_misc.h> -#include <asm/mach/irq.h> -#include <asm/mach/map.h> -#include <mach/irqs.h> - -#include <asm/mach/dma.h> - -#if 0 -#define IRQDBG(args...) printk(args) -#else -#define IRQDBG(args...) do {} while(0) -#endif - -void __init arch_dma_init(dma_t *dma) -{ -} - -/* - * Return nsecs since last timer reload - * (timercount * (usecs perjiffie)) / (ticks per jiffie) - */ -u32 h720x_gettimeoffset(void) -{ - return ((CPU_REG(TIMER_VIRT, TM0_COUNT) * tick_usec) / LATCH) * 1000; -} - -/* - * mask Global irq's - */ -static void mask_global_irq(struct irq_data *d) -{ - CPU_REG (IRQC_VIRT, IRQC_IER) &= ~(1 << d->irq); -} - -/* - * unmask Global irq's - */ -static void unmask_global_irq(struct irq_data *d) -{ - CPU_REG (IRQC_VIRT, IRQC_IER) |= (1 << d->irq); -} - - -/* - * ack GPIO irq's - * Ack only for edge triggered int's valid - */ -static void inline ack_gpio_irq(struct irq_data *d) -{ - u32 reg_base = GPIO_VIRT(IRQ_TO_REGNO(d->irq)); - u32 bit = IRQ_TO_BIT(d->irq); - if ( (CPU_REG (reg_base, GPIO_EDGE) & bit)) - CPU_REG (reg_base, GPIO_CLR) = bit; -} - -/* - * mask GPIO irq's - */ -static void inline mask_gpio_irq(struct irq_data *d) -{ - u32 reg_base = GPIO_VIRT(IRQ_TO_REGNO(d->irq)); - u32 bit = IRQ_TO_BIT(d->irq); - CPU_REG (reg_base, GPIO_MASK) &= ~bit; -} - -/* - * unmask GPIO irq's - */ -static void inline unmask_gpio_irq(struct irq_data *d) -{ - u32 reg_base = GPIO_VIRT(IRQ_TO_REGNO(d->irq)); - u32 bit = IRQ_TO_BIT(d->irq); - CPU_REG (reg_base, GPIO_MASK) |= bit; -} - -static void -h720x_gpio_handler(unsigned int mask, unsigned int irq, - struct irq_desc *desc) -{ - IRQDBG("%s irq: %d\n", __func__, irq); - while (mask) { - if (mask & 1) { - IRQDBG("handling irq %d\n", irq); - generic_handle_irq(irq); - } - irq++; - mask >>= 1; - } -} - -static void -h720x_gpioa_demux_handler(unsigned int irq_unused, struct irq_desc *desc) -{ - unsigned int mask, irq; - - mask = CPU_REG(GPIO_A_VIRT,GPIO_STAT); - irq = IRQ_CHAINED_GPIOA(0); - IRQDBG("%s mask: 0x%08x irq: %d\n", __func__, mask,irq); - h720x_gpio_handler(mask, irq, desc); -} - -static void -h720x_gpiob_demux_handler(unsigned int irq_unused, struct irq_desc *desc) -{ - unsigned int mask, irq; - mask = CPU_REG(GPIO_B_VIRT,GPIO_STAT); - irq = IRQ_CHAINED_GPIOB(0); - IRQDBG("%s mask: 0x%08x irq: %d\n", __func__, mask,irq); - h720x_gpio_handler(mask, irq, desc); -} - -static void -h720x_gpioc_demux_handler(unsigned int irq_unused, struct irq_desc *desc) -{ - unsigned int mask, irq; - - mask = CPU_REG(GPIO_C_VIRT,GPIO_STAT); - irq = IRQ_CHAINED_GPIOC(0); - IRQDBG("%s mask: 0x%08x irq: %d\n", __func__, mask,irq); - h720x_gpio_handler(mask, irq, desc); -} - -static void -h720x_gpiod_demux_handler(unsigned int irq_unused, struct irq_desc *desc) -{ - unsigned int mask, irq; - - mask = CPU_REG(GPIO_D_VIRT,GPIO_STAT); - irq = IRQ_CHAINED_GPIOD(0); - IRQDBG("%s mask: 0x%08x irq: %d\n", __func__, mask,irq); - h720x_gpio_handler(mask, irq, desc); -} - -#ifdef CONFIG_CPU_H7202 -static void -h720x_gpioe_demux_handler(unsigned int irq_unused, struct irq_desc *desc) -{ - unsigned int mask, irq; - - mask = CPU_REG(GPIO_E_VIRT,GPIO_STAT); - irq = IRQ_CHAINED_GPIOE(0); - IRQDBG("%s mask: 0x%08x irq: %d\n", __func__, mask,irq); - h720x_gpio_handler(mask, irq, desc); -} -#endif - -static struct irq_chip h720x_global_chip = { - .irq_ack = mask_global_irq, - .irq_mask = mask_global_irq, - .irq_unmask = unmask_global_irq, -}; - -static struct irq_chip h720x_gpio_chip = { - .irq_ack = ack_gpio_irq, - .irq_mask = mask_gpio_irq, - .irq_unmask = unmask_gpio_irq, -}; - -/* - * Initialize IRQ's, mask all, enable multiplexed irq's - */ -void __init h720x_init_irq (void) -{ - int irq; - - /* Mask global irq's */ - CPU_REG (IRQC_VIRT, IRQC_IER) = 0x0; - - /* Mask all multiplexed irq's */ - CPU_REG (GPIO_A_VIRT, GPIO_MASK) = 0x0; - CPU_REG (GPIO_B_VIRT, GPIO_MASK) = 0x0; - CPU_REG (GPIO_C_VIRT, GPIO_MASK) = 0x0; - CPU_REG (GPIO_D_VIRT, GPIO_MASK) = 0x0; - - /* Initialize global IRQ's, fast path */ - for (irq = 0; irq < NR_GLBL_IRQS; irq++) { - irq_set_chip_and_handler(irq, &h720x_global_chip, - handle_level_irq); - set_irq_flags(irq, IRQF_VALID | IRQF_PROBE); - } - - /* Initialize multiplexed IRQ's, slow path */ - for (irq = IRQ_CHAINED_GPIOA(0) ; irq <= IRQ_CHAINED_GPIOD(31); irq++) { - irq_set_chip_and_handler(irq, &h720x_gpio_chip, - handle_edge_irq); - set_irq_flags(irq, IRQF_VALID ); - } - irq_set_chained_handler(IRQ_GPIOA, h720x_gpioa_demux_handler); - irq_set_chained_handler(IRQ_GPIOB, h720x_gpiob_demux_handler); - irq_set_chained_handler(IRQ_GPIOC, h720x_gpioc_demux_handler); - irq_set_chained_handler(IRQ_GPIOD, h720x_gpiod_demux_handler); - -#ifdef CONFIG_CPU_H7202 - for (irq = IRQ_CHAINED_GPIOE(0) ; irq <= IRQ_CHAINED_GPIOE(31); irq++) { - irq_set_chip_and_handler(irq, &h720x_gpio_chip, - handle_edge_irq); - set_irq_flags(irq, IRQF_VALID ); - } - irq_set_chained_handler(IRQ_GPIOE, h720x_gpioe_demux_handler); -#endif - - /* Enable multiplexed irq's */ - CPU_REG (IRQC_VIRT, IRQC_IER) = IRQ_ENA_MUX; -} - -static struct map_desc h720x_io_desc[] __initdata = { - { - .virtual = IO_VIRT, - .pfn = __phys_to_pfn(IO_PHYS), - .length = IO_SIZE, - .type = MT_DEVICE - }, -}; - -/* Initialize io tables */ -void __init h720x_map_io(void) -{ - iotable_init(h720x_io_desc,ARRAY_SIZE(h720x_io_desc)); -} - -void h720x_restart(char mode, const char *cmd) -{ - CPU_REG (PMU_BASE, PMU_STAT) |= PMU_WARMRESET; -} - -static void h720x__idle(void) -{ - CPU_REG (PMU_BASE, PMU_MODE) = PMU_MODE_IDLE; - nop(); - nop(); - CPU_REG (PMU_BASE, PMU_MODE) = PMU_MODE_RUN; - nop(); - nop(); -} - -static int __init h720x_idle_init(void) -{ - arm_pm_idle = h720x__idle; - return 0; -} - -arch_initcall(h720x_idle_init); |