diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/mips/include/asm/mach-rc32434/irq.h | 3 | ||||
| -rw-r--r-- | arch/mips/rb532/irq.c | 27 |
2 files changed, 30 insertions, 0 deletions
diff --git a/arch/mips/include/asm/mach-rc32434/irq.h b/arch/mips/include/asm/mach-rc32434/irq.h index 56738d8ec4e2..023a5b100ed0 100644 --- a/arch/mips/include/asm/mach-rc32434/irq.h +++ b/arch/mips/include/asm/mach-rc32434/irq.h @@ -30,4 +30,7 @@ #define ETH0_RX_OVR_IRQ (GROUP3_IRQ_BASE + 9) #define ETH0_TX_UND_IRQ (GROUP3_IRQ_BASE + 10) +#define GPIO_MAPPED_IRQ_BASE GROUP4_IRQ_BASE +#define GPIO_MAPPED_IRQ_GROUP 4 + #endif /* __ASM_RC32434_IRQ_H */ diff --git a/arch/mips/rb532/irq.c b/arch/mips/rb532/irq.c index 549b46d2fcee..53eeb5e7bc5b 100644 --- a/arch/mips/rb532/irq.c +++ b/arch/mips/rb532/irq.c @@ -46,6 +46,7 @@ #include <asm/system.h> #include <asm/mach-rc32434/irq.h> +#include <asm/mach-rc32434/gpio.h> struct intr_group { u32 mask; /* mask of valid bits in pending/mask registers */ @@ -150,6 +151,9 @@ static void rb532_disable_irq(unsigned int irq_nr) mask |= intr_bit; WRITE_MASK(addr, mask); + if (group == GPIO_MAPPED_IRQ_GROUP) + rb532_gpio_set_istat(0, irq_nr - GPIO_MAPPED_IRQ_BASE); + /* * if there are no more interrupts enabled in this * group, disable corresponding IP @@ -165,12 +169,35 @@ static void rb532_mask_and_ack_irq(unsigned int irq_nr) ack_local_irq(group_to_ip(irq_to_group(irq_nr))); } +static int rb532_set_type(unsigned int irq_nr, unsigned type) +{ + int gpio = irq_nr - GPIO_MAPPED_IRQ_BASE; + int group = irq_to_group(irq_nr); + + if (group != GPIO_MAPPED_IRQ_GROUP) + return (type == IRQ_TYPE_LEVEL_HIGH) ? 0 : -EINVAL; + + switch (type) { + case IRQ_TYPE_LEVEL_HIGH: + rb532_gpio_set_ilevel(1, gpio); + break; + case IRQ_TYPE_LEVEL_LOW: + rb532_gpio_set_ilevel(0, gpio); + break; + default: + return -EINVAL; + } + + return 0; +} + static struct irq_chip rc32434_irq_type = { .name = "RB532", .ack = rb532_disable_irq, .mask = rb532_disable_irq, .mask_ack = rb532_mask_and_ack_irq, .unmask = rb532_enable_irq, + .set_type = rb532_set_type, }; void __init arch_init_irq(void) |