diff options
| author | Mike Rapoport <mike@compulab.co.il> | 2009-11-11 12:36:59 +0300 |
|---|---|---|
| committer | Eric Miao <eric.y.miao@gmail.com> | 2009-12-01 04:02:58 +0300 |
| commit | bf293aec15fb223fd81c0cdfd1829edff95a325b (patch) | |
| tree | 92ab607c731ba2694dd6046df29648db5740429e /arch/arm | |
| parent | 15cc7112abb66e7e1c956135ba2390638acf3416 (diff) | |
| download | linux-bf293aec15fb223fd81c0cdfd1829edff95a325b.tar.xz | |
[ARM] pxa: add EXT_WAKEUP interrupts handling for pxa3xx
Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/mach-pxa/pxa3xx.c | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/arch/arm/mach-pxa/pxa3xx.c b/arch/arm/mach-pxa/pxa3xx.c index 3198680626ec..fcb0721f4669 100644 --- a/arch/arm/mach-pxa/pxa3xx.c +++ b/arch/arm/mach-pxa/pxa3xx.c @@ -30,6 +30,7 @@ #include <mach/pm.h> #include <mach/dma.h> #include <mach/ssp.h> +#include <mach/regs-intc.h> #include <plat/i2c.h> #include "generic.h" @@ -45,6 +46,9 @@ #define ACCR_D0CS (1 << 26) #define ACCR_PCCE (1 << 11) +#define PECR_IE(n) ((1 << ((n) * 2)) << 28) +#define PECR_IS(n) ((1 << ((n) * 2)) << 29) + /* crystal frequency to static memory controller multiplier (SMCFS) */ static unsigned char smcfs_mult[8] = { 6, 0, 8, 0, 0, 16, }; @@ -532,6 +536,43 @@ static inline void pxa3xx_init_pm(void) {} #define pxa3xx_set_wake NULL #endif +static void pxa_ack_ext_wakeup(unsigned int irq) +{ + PECR |= PECR_IS(irq - IRQ_WAKEUP0); +} + +static void pxa_mask_ext_wakeup(unsigned int irq) +{ + ICMR2 &= ~(1 << ((irq - PXA_IRQ(0)) & 0x1f)); + PECR &= ~PECR_IE(irq - IRQ_WAKEUP0); +} + +static void pxa_unmask_ext_wakeup(unsigned int irq) +{ + ICMR2 |= 1 << ((irq - PXA_IRQ(0)) & 0x1f); + PECR |= PECR_IE(irq - IRQ_WAKEUP0); +} + +static struct irq_chip pxa_ext_wakeup_chip = { + .name = "WAKEUP", + .ack = pxa_ack_ext_wakeup, + .mask = pxa_mask_ext_wakeup, + .unmask = pxa_unmask_ext_wakeup, +}; + +static void __init pxa_init_ext_wakeup_irq(set_wake_t fn) +{ + int irq; + + for (irq = IRQ_WAKEUP0; irq <= IRQ_WAKEUP1; irq++) { + set_irq_chip(irq, &pxa_ext_wakeup_chip); + set_irq_handler(irq, handle_edge_irq); + set_irq_flags(irq, IRQF_VALID); + } + + pxa_ext_wakeup_chip.set_wake = fn; +} + void __init pxa3xx_init_irq(void) { /* enable CP6 access */ @@ -541,6 +582,7 @@ void __init pxa3xx_init_irq(void) __asm__ __volatile__("mcr p15, 0, %0, c15, c1, 0\n": :"r"(value)); pxa_init_irq(56, pxa3xx_set_wake); + pxa_init_ext_wakeup_irq(pxa3xx_set_wake); pxa_init_gpio(IRQ_GPIO_2_x, 2, 127, NULL); } |