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| author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2008-12-20 17:40:03 +0000 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2008-12-20 17:40:03 +0000 |
| commit | a663a71e429d7d06a7773edc4092995c5fe1171f (patch) | |
| tree | 3a9e4b3a00754c8d4207fd6e4c310e53879d9772 /arch/arm/mach-kirkwood/irq.c | |
| parent | 828aac2ee239dca9c1856c4856a57912e6a487c4 (diff) | |
| parent | b95a13d79c0e92c9c844fa8aa089c9bd2ed10705 (diff) | |
| download | kernel_samsung_smdk4412-a663a71e429d7d06a7773edc4092995c5fe1171f.zip kernel_samsung_smdk4412-a663a71e429d7d06a7773edc4092995c5fe1171f.tar.gz kernel_samsung_smdk4412-a663a71e429d7d06a7773edc4092995c5fe1171f.tar.bz2 | |
Merge git://git.marvell.com/orion into devel
Diffstat (limited to 'arch/arm/mach-kirkwood/irq.c')
| -rw-r--r-- | arch/arm/mach-kirkwood/irq.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/arch/arm/mach-kirkwood/irq.c b/arch/arm/mach-kirkwood/irq.c index 5790643..efb86b7 100644 --- a/arch/arm/mach-kirkwood/irq.c +++ b/arch/arm/mach-kirkwood/irq.c @@ -13,10 +13,45 @@ #include <linux/irq.h> #include <linux/io.h> #include <plat/irq.h> +#include <asm/gpio.h> #include "common.h" +static void gpio_irq_handler(unsigned int irq, struct irq_desc *desc) +{ + BUG_ON(irq < IRQ_KIRKWOOD_GPIO_LOW_0_7); + BUG_ON(irq > IRQ_KIRKWOOD_GPIO_HIGH_16_23); + + orion_gpio_irq_handler((irq - IRQ_KIRKWOOD_GPIO_LOW_0_7) << 3); +} + void __init kirkwood_init_irq(void) { + int i; + orion_irq_init(0, (void __iomem *)(IRQ_VIRT_BASE + IRQ_MASK_LOW_OFF)); orion_irq_init(32, (void __iomem *)(IRQ_VIRT_BASE + IRQ_MASK_HIGH_OFF)); + + /* + * Mask and clear GPIO IRQ interrupts. + */ + writel(0, GPIO_LEVEL_MASK(0)); + writel(0, GPIO_EDGE_MASK(0)); + writel(0, GPIO_EDGE_CAUSE(0)); + writel(0, GPIO_LEVEL_MASK(32)); + writel(0, GPIO_EDGE_MASK(32)); + writel(0, GPIO_EDGE_CAUSE(32)); + + for (i = IRQ_KIRKWOOD_GPIO_START; i < NR_IRQS; i++) { + set_irq_chip(i, &orion_gpio_irq_level_chip); + set_irq_handler(i, handle_level_irq); + irq_desc[i].status |= IRQ_LEVEL; + set_irq_flags(i, IRQF_VALID); + } + set_irq_chained_handler(IRQ_KIRKWOOD_GPIO_LOW_0_7, gpio_irq_handler); + set_irq_chained_handler(IRQ_KIRKWOOD_GPIO_LOW_8_15, gpio_irq_handler); + set_irq_chained_handler(IRQ_KIRKWOOD_GPIO_LOW_16_23, gpio_irq_handler); + set_irq_chained_handler(IRQ_KIRKWOOD_GPIO_LOW_24_31, gpio_irq_handler); + set_irq_chained_handler(IRQ_KIRKWOOD_GPIO_HIGH_0_7, gpio_irq_handler); + set_irq_chained_handler(IRQ_KIRKWOOD_GPIO_HIGH_8_15, gpio_irq_handler); + set_irq_chained_handler(IRQ_KIRKWOOD_GPIO_HIGH_16_23, gpio_irq_handler); } |