diff options
Diffstat (limited to 'target/linux/adm5120')
| -rw-r--r-- | target/linux/adm5120/files/arch/mips/adm5120/irq.c | 58 |
1 files changed, 32 insertions, 26 deletions
diff --git a/target/linux/adm5120/files/arch/mips/adm5120/irq.c b/target/linux/adm5120/files/arch/mips/adm5120/irq.c index b7937c6ae..ed9acb020 100644 --- a/target/linux/adm5120/files/arch/mips/adm5120/irq.c +++ b/target/linux/adm5120/files/arch/mips/adm5120/irq.c @@ -1,10 +1,8 @@ /* - * $Id$ - * * ADM5120 specific interrupt handlers * - * Copyright (C) 2007 OpenWrt.org - * Copyright (C) 2007 Gabor Juhos <juhosg at openwrt.org> + * Copyright (C) 2007-2008 OpenWrt.org + * Copyright (C) 2007-2008 Gabor Juhos <juhosg@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 @@ -17,26 +15,34 @@ #include <linux/version.h> #include <linux/interrupt.h> #include <linux/ioport.h> - #include <linux/io.h> + #include <asm/irq.h> #include <asm/irq_cpu.h> #include <asm/mipsregs.h> #include <asm/bitops.h> -#include <adm5120_defs.h> -#include <adm5120_irq.h> - -#define INTC_WRITE(reg, val) __raw_writel((val), \ - (void __iomem *)(KSEG1ADDR(ADM5120_INTC_BASE) + reg)) - -#define INTC_READ(reg) __raw_readl(\ - (void __iomem *)(KSEG1ADDR(ADM5120_INTC_BASE) + reg)) +#include <asm/mach-adm5120/adm5120_defs.h> +#include <asm/mach-adm5120/adm5120_irq.h> static void adm5120_intc_irq_unmask(unsigned int irq); static void adm5120_intc_irq_mask(unsigned int irq); static int adm5120_intc_irq_set_type(unsigned int irq, unsigned int flow_type); +static inline void intc_write_reg(unsigned int reg, u32 val) +{ + void __iomem *base = (void __iomem *)KSEG1ADDR(ADM5120_INTC_BASE); + + __raw_writel(val, base + reg); +} + +static inline u32 intc_read_reg(unsigned int reg) +{ + void __iomem *base = (void __iomem *)KSEG1ADDR(ADM5120_INTC_BASE); + + return __raw_readl(base + reg); +} + static struct irq_chip adm5120_intc_irq_chip = { .name = "INTC", .unmask = adm5120_intc_irq_unmask, @@ -53,13 +59,13 @@ static struct irqaction adm5120_intc_irq_action = { static void adm5120_intc_irq_unmask(unsigned int irq) { irq -= ADM5120_INTC_IRQ_BASE; - INTC_WRITE(INTC_REG_IRQ_ENABLE, 1 << irq); + intc_write_reg(INTC_REG_IRQ_ENABLE, 1 << irq); } static void adm5120_intc_irq_mask(unsigned int irq) { irq -= ADM5120_INTC_IRQ_BASE; - INTC_WRITE(INTC_REG_IRQ_DISABLE, 1 << irq); + intc_write_reg(INTC_REG_IRQ_DISABLE, 1 << irq); } static int adm5120_intc_irq_set_type(unsigned int irq, unsigned int flow_type) @@ -94,13 +100,13 @@ static int adm5120_intc_irq_set_type(unsigned int irq, unsigned int flow_type) switch (irq) { case ADM5120_IRQ_GPIO2: case ADM5120_IRQ_GPIO4: - mode = INTC_READ(INTC_REG_INT_MODE); + mode = intc_read_reg(INTC_REG_INT_MODE); if (sense == IRQ_TYPE_LEVEL_LOW) mode |= (1 << (irq - ADM5120_INTC_IRQ_BASE)); else mode &= ~(1 << (irq - ADM5120_INTC_IRQ_BASE)); - INTC_WRITE(INTC_REG_INT_MODE, mode); + intc_write_reg(INTC_REG_INT_MODE, mode); /* fallthrough */ default: irq_desc[irq].status &= ~IRQ_TYPE_SENSE_MASK; @@ -117,10 +123,10 @@ static void adm5120_intc_irq_dispatch(void) int irq; /* dispatch only one IRQ at a time */ - status = INTC_READ(INTC_REG_IRQ_STATUS) & INTC_INT_ALL; + status = intc_read_reg(INTC_REG_IRQ_STATUS) & INTC_INT_ALL; if (status) { - irq = ADM5120_INTC_IRQ_BASE+fls(status)-1; + irq = ADM5120_INTC_IRQ_BASE + fls(status) - 1; do_IRQ(irq); } else spurious_interrupt(); @@ -142,24 +148,24 @@ asmlinkage void plat_irq_dispatch(void) #define INTC_IRQ_STATUS (IRQ_LEVEL | IRQ_TYPE_LEVEL_HIGH | IRQ_DISABLED) -static void __init adm5120_intc_irq_init(int base) +static void __init adm5120_intc_irq_init(void) { int i; /* disable all interrupts */ - INTC_WRITE(INTC_REG_IRQ_DISABLE, INTC_INT_ALL); + intc_write_reg(INTC_REG_IRQ_DISABLE, INTC_INT_ALL); /* setup all interrupts to generate IRQ instead of FIQ */ - INTC_WRITE(INTC_REG_INT_MODE, 0); + intc_write_reg(INTC_REG_INT_MODE, 0); /* set active level for all external interrupts to HIGH */ - INTC_WRITE(INTC_REG_INT_LEVEL, 0); + intc_write_reg(INTC_REG_INT_LEVEL, 0); /* disable usage of the TEST_SOURCE register */ - INTC_WRITE(INTC_REG_IRQ_SOURCE_SELECT, 0); + intc_write_reg(INTC_REG_IRQ_SOURCE_SELECT, 0); for (i = ADM5120_INTC_IRQ_BASE; - i <= ADM5120_INTC_IRQ_BASE+INTC_IRQ_LAST; + i <= ADM5120_INTC_IRQ_BASE + INTC_IRQ_LAST; i++) { irq_desc[i].status = INTC_IRQ_STATUS; set_irq_chip_and_handler(i, &adm5120_intc_irq_chip, @@ -171,5 +177,5 @@ static void __init adm5120_intc_irq_init(int base) void __init arch_init_irq(void) { mips_cpu_irq_init(); - adm5120_intc_irq_init(ADM5120_INTC_IRQ_BASE); + adm5120_intc_irq_init(); } |