diff options
| author | Andrew Victor <andrew@sanpeople.com> | 2006-11-30 10:01:47 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2006-11-30 22:51:36 +0000 |
| commit | 1f4fd0a0d28fabf965815755f1a74ef91dfb5ca6 (patch) | |
| tree | 09562e8467136cf545b5631a257a0e9d53a31a89 /arch/arm/mach-at91rm9200/irq.c | |
| parent | 20127f6863990e1313178debe8c9cfe32d43b1dc (diff) | |
[ARM] 3946/1: AT91: at91_arch_reset and at91_extern_irq
The external interrupt sources are different on the various AT91
processors. This patch introduces the global 'at91_extern_irq' variable
that contains a bitset of the available external interrupt sources.
The processor reset mechanism also differs on the various AT91
processors. This patch also adds a global 'at91_arch_reset' callback
(from system.h) into the processor-specific code to perform the reset.
Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-at91rm9200/irq.c')
| -rw-r--r-- | arch/arm/mach-at91rm9200/irq.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/arch/arm/mach-at91rm9200/irq.c b/arch/arm/mach-at91rm9200/irq.c index 3e488117ca9..2cea07a34a8 100644 --- a/arch/arm/mach-at91rm9200/irq.c +++ b/arch/arm/mach-at91rm9200/irq.c @@ -47,6 +47,10 @@ static void at91_aic_unmask_irq(unsigned int irq) at91_sys_write(AT91_AIC_IECR, 1 << irq); } +unsigned int at91_extern_irq; + +#define is_extern_irq(irq) ((1 << (irq)) & at91_extern_irq) + static int at91_aic_set_type(unsigned irq, unsigned type) { unsigned int smr, srctype; @@ -59,14 +63,16 @@ static int at91_aic_set_type(unsigned irq, unsigned type) srctype = AT91_AIC_SRCTYPE_RISING; break; case IRQT_LOW: - if ((irq > AT91_ID_FIQ) && (irq < AT91RM9200_ID_IRQ0)) /* only supported on external interrupts */ + if ((irq == AT91_ID_FIQ) || is_extern_irq(irq)) /* only supported on external interrupts */ + srctype = AT91_AIC_SRCTYPE_LOW; + else return -EINVAL; - srctype = AT91_AIC_SRCTYPE_LOW; break; case IRQT_FALLING: - if ((irq > AT91_ID_FIQ) && (irq < AT91RM9200_ID_IRQ0)) /* only supported on external interrupts */ + if ((irq == AT91_ID_FIQ) || is_extern_irq(irq)) /* only supported on external interrupts */ + srctype = AT91_AIC_SRCTYPE_FALLING; + else return -EINVAL; - srctype = AT91_AIC_SRCTYPE_FALLING; break; default: return -EINVAL; |