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| 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 /include | |
| parent | 20127f6863990e1313178debe8c9cfe32d43b1dc (diff) | |
| download | linux-stable-1f4fd0a0d28fabf965815755f1a74ef91dfb5ca6.tar.gz linux-stable-1f4fd0a0d28fabf965815755f1a74ef91dfb5ca6.tar.bz2 linux-stable-1f4fd0a0d28fabf965815755f1a74ef91dfb5ca6.zip | |
[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 'include')
| -rw-r--r-- | include/asm-arm/arch-at91rm9200/system.h | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/include/asm-arm/arch-at91rm9200/system.h b/include/asm-arm/arch-at91rm9200/system.h index 8a2ff472e4cf..1d54185e036d 100644 --- a/include/asm-arm/arch-at91rm9200/system.h +++ b/include/asm-arm/arch-at91rm9200/system.h @@ -39,13 +39,15 @@ static inline void arch_idle(void) cpu_do_idle(); } +void (*at91_arch_reset)(void); + static inline void arch_reset(char mode) { - /* - * 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); + /* call the CPU-specific reset function */ + if (at91_arch_reset) + (at91_arch_reset)(); + + for (;;) {} /* wait fovever */ } #define ARCH_ID_AT91RM9200 0x09200080 |