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authorLinus Torvalds <torvalds@linux-foundation.org>2012-01-09 14:21:03 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2012-01-09 14:21:03 -0800
commitacc952c1f373bf3f66cc7a10680eee1762bed40b (patch)
treede1135ffe304f4d8e53d282e5bb1bde5db04e0ae /arch/arm/mach-at91/irq.c
parent57e964e1ae9bd4f699ae1074430bcf81a9a11377 (diff)
parent40ba95fdf158713377d47736b1b3a9d75f4f2515 (diff)
Merge tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Cleanups on various subarchitectures Cleanup patches for various ARM platforms and some of their associated drivers, the bulk of these is for mach-91. Arnd ended up pulling in the restart branch from Russell in order to fix up some simple but annoying merge conflicts. * tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (44 commits) arm/at91: fix build of stamp9g20 ARM: u300: delete memory.h MAINTAINERS: add maintainer entry for Picochip picoxcell ARM: picoxcell: move io mappings to common.c ARM: picoxcell: don't reserve irq_descs ARM: picoxcell: remove mach/memory.h ARM: at91: delete the pcontrol_g20_defconfig arm/tegra: Remove code that's ifndef CONFIG_ARM_GIC arm/tegra: remove unused defines arm/tegra: fix variable formatting in makefile ARM: davinci: vpif: move code to driver core header from platform ARM: at91/gpio: fix display of number of irq setuped ARM: at91/gpio: drop PIN_BASE ARM: at91/udc: use gpio_is_valid to check the gpio ARM: at91/ohci: use gpio_is_valid to check the gpio ARM: at91/nand: use gpio_is_valid to check the gpio ARM: at91/mmc: use gpio_is_valid to check the gpio ARM: at91/ide: use gpio_is_valid to check the gpio ARM: at91/pata: use gpio_is_valid to check the gpio ARM: at91/soc: use gpio_is_valid to check the gpio ...
Diffstat (limited to 'arch/arm/mach-at91/irq.c')
-rw-r--r--arch/arm/mach-at91/irq.c38
1 files changed, 22 insertions, 16 deletions
diff --git a/arch/arm/mach-at91/irq.c b/arch/arm/mach-at91/irq.c
index 9665265ec75..be6b639ecd7 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);
}