diff options
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 17ef91fa3d5..00000000000 --- 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); |