diff options
Diffstat (limited to 'arch/arm/mach-at91/irq.c')
| -rw-r--r-- | arch/arm/mach-at91/irq.c | 38 |
1 files changed, 22 insertions, 16 deletions
diff --git a/arch/arm/mach-at91/irq.c b/arch/arm/mach-at91/irq.c index 9665265e..be6b639 100644 --- a/arch/arm/mach-at91/irq.c +++ b/arch/arm/mach-at91/irq.c @@ -33,17 +33,18 @@ #include <asm/mach/irq.h> #include <asm/mach/map.h> +void __iomem *at91_aic_base; static void at91_aic_mask_irq(struct irq_data *d) { /* Disable interrupt on AIC */ - at91_sys_write(AT91_AIC_IDCR, 1 << d->irq); + at91_aic_write(AT91_AIC_IDCR, 1 << d->irq); } static void at91_aic_unmask_irq(struct irq_data *d) { /* Enable interrupt on AIC */ - at91_sys_write(AT91_AIC_IECR, 1 << d->irq); + at91_aic_write(AT91_AIC_IECR, 1 << d->irq); } unsigned int at91_extern_irq; @@ -77,8 +78,8 @@ static int at91_aic_set_type(struct irq_data *d, unsigned type) return -EINVAL; } - smr = at91_sys_read(AT91_AIC_SMR(d->irq)) & ~AT91_AIC_SRCTYPE; - at91_sys_write(AT91_AIC_SMR(d->irq), smr | srctype); + smr = at91_aic_read(AT91_AIC_SMR(d->irq)) & ~AT91_AIC_SRCTYPE; + at91_aic_write(AT91_AIC_SMR(d->irq), smr | srctype); return 0; } @@ -102,15 +103,15 @@ static int at91_aic_set_wake(struct irq_data *d, unsigned value) void at91_irq_suspend(void) { - backups = at91_sys_read(AT91_AIC_IMR); - at91_sys_write(AT91_AIC_IDCR, backups); - at91_sys_write(AT91_AIC_IECR, wakeups); + backups = at91_aic_read(AT91_AIC_IMR); + at91_aic_write(AT91_AIC_IDCR, backups); + at91_aic_write(AT91_AIC_IECR, wakeups); } void at91_irq_resume(void) { - at91_sys_write(AT91_AIC_IDCR, wakeups); - at91_sys_write(AT91_AIC_IECR, backups); + at91_aic_write(AT91_AIC_IDCR, wakeups); + at91_aic_write(AT91_AIC_IECR, backups); } #else @@ -133,34 +134,39 @@ void __init at91_aic_init(unsigned int priority[NR_AIC_IRQS]) { unsigned int i; + at91_aic_base = ioremap(AT91_AIC, 512); + + if (!at91_aic_base) + panic("Impossible to ioremap AT91_AIC\n"); + /* * The IVR is used by macro get_irqnr_and_base to read and verify. * The irq number is NR_AIC_IRQS when a spurious interrupt has occurred. */ for (i = 0; i < NR_AIC_IRQS; i++) { /* Put irq number in Source Vector Register: */ - at91_sys_write(AT91_AIC_SVR(i), i); + at91_aic_write(AT91_AIC_SVR(i), i); /* Active Low interrupt, with the specified priority */ - at91_sys_write(AT91_AIC_SMR(i), AT91_AIC_SRCTYPE_LOW | priority[i]); + at91_aic_write(AT91_AIC_SMR(i), AT91_AIC_SRCTYPE_LOW | priority[i]); irq_set_chip_and_handler(i, &at91_aic_chip, handle_level_irq); set_irq_flags(i, IRQF_VALID | IRQF_PROBE); /* Perform 8 End Of Interrupt Command to make sure AIC will not Lock out nIRQ */ if (i < 8) - at91_sys_write(AT91_AIC_EOICR, 0); + at91_aic_write(AT91_AIC_EOICR, 0); } /* * Spurious Interrupt ID in Spurious Vector Register is NR_AIC_IRQS * When there is no current interrupt, the IRQ Vector Register reads the value stored in AIC_SPU */ - at91_sys_write(AT91_AIC_SPU, NR_AIC_IRQS); + at91_aic_write(AT91_AIC_SPU, NR_AIC_IRQS); /* No debugging in AIC: Debug (Protect) Control Register */ - at91_sys_write(AT91_AIC_DCR, 0); + at91_aic_write(AT91_AIC_DCR, 0); /* Disable and clear all interrupts initially */ - at91_sys_write(AT91_AIC_IDCR, 0xFFFFFFFF); - at91_sys_write(AT91_AIC_ICCR, 0xFFFFFFFF); + at91_aic_write(AT91_AIC_IDCR, 0xFFFFFFFF); + at91_aic_write(AT91_AIC_ICCR, 0xFFFFFFFF); } |