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Diffstat (limited to 'arch')
-rw-r--r--arch/mips/include/asm/mach-rc32434/irq.h3
-rw-r--r--arch/mips/rb532/irq.c27
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 56738d8ec4e..023a5b100ed 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 549b46d2fce..53eeb5e7bc5 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)