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/at91rm9200.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/at91rm9200.c')
| -rw-r--r-- | arch/arm/mach-at91rm9200/at91rm9200.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/arch/arm/mach-at91rm9200/at91rm9200.c b/arch/arm/mach-at91rm9200/at91rm9200.c index dcf6136fedf..0422593032f 100644 --- a/arch/arm/mach-at91rm9200/at91rm9200.c +++ b/arch/arm/mach-at91rm9200/at91rm9200.c @@ -14,6 +14,7 @@ #include <asm/mach/arch.h> #include <asm/mach/map.h> +#include <asm/arch/at91rm9200.h> #include <asm/hardware.h> #include "generic.h" @@ -222,6 +223,16 @@ static struct at91_gpio_bank at91rm9200_gpio[] = { } }; +static void at91rm9200_reset(void) +{ + /* + * Perform a hardware reset with the use of the Watchdog timer. + */ + at91_sys_write(AT91_ST_WDMR, AT91_ST_RSTEN | AT91_ST_EXTEN | 1); + at91_sys_write(AT91_ST_CR, AT91_ST_WDRST); +} + + /* -------------------------------------------------------------------- * AT91RM9200 processor initialization * -------------------------------------------------------------------- */ @@ -230,6 +241,12 @@ void __init at91rm9200_initialize(unsigned long main_clock, unsigned short banks /* Map peripherals */ iotable_init(at91rm9200_io_desc, ARRAY_SIZE(at91rm9200_io_desc)); + at91_arch_reset = at91rm9200_reset; + at91_extern_irq = (1 << AT91RM9200_ID_IRQ0) | (1 << AT91RM9200_ID_IRQ1) + | (1 << AT91RM9200_ID_IRQ2) | (1 << AT91RM9200_ID_IRQ3) + | (1 << AT91RM9200_ID_IRQ4) | (1 << AT91RM9200_ID_IRQ5) + | (1 << AT91RM9200_ID_IRQ6); + /* Init clock subsystem */ at91_clock_init(main_clock); |