diff options
| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-11-03 19:47:54 +0000 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2012-01-05 12:57:12 +0000 |
| commit | 6fca1e17f64936de2e9c614c0d246e65ae553b68 (patch) | |
| tree | fd3232e30b1ed81a89918fca37fc341d85e01144 /arch/arm/mach-footbridge/common.c | |
| parent | 9eb4859564d6e104f78abde15e7f0ca996b71236 (diff) | |
ARM: restart: footbridge: use new restart hook
Hook these platforms restart code into the new restart hook rather
than using arch_reset().
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-footbridge/common.c')
| -rw-r--r-- | arch/arm/mach-footbridge/common.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/arch/arm/mach-footbridge/common.c b/arch/arm/mach-footbridge/common.c index 38a44f9b9da2..41978ee4f9d0 100644 --- a/arch/arm/mach-footbridge/common.c +++ b/arch/arm/mach-footbridge/common.c @@ -199,6 +199,33 @@ void __init footbridge_map_io(void) iotable_init(ebsa285_host_io_desc, ARRAY_SIZE(ebsa285_host_io_desc)); } +void footbridge_restart(char mode, const char *cmd) +{ + if (mode == 's') { + /* Jump into the ROM */ + soft_restart(0x41000000); + } else { + /* + * Force the watchdog to do a CPU reset. + * + * After making sure that the watchdog is disabled + * (so we can change the timer registers) we first + * enable the timer to autoreload itself. Next, the + * timer interval is set really short and any + * current interrupt request is cleared (so we can + * see an edge transition). Finally, TIMER4 is + * enabled as the watchdog. + */ + *CSR_SA110_CNTL &= ~(1 << 13); + *CSR_TIMER4_CNTL = TIMER_CNTL_ENABLE | + TIMER_CNTL_AUTORELOAD | + TIMER_CNTL_DIV16; + *CSR_TIMER4_LOAD = 0x2; + *CSR_TIMER4_CLR = 0; + *CSR_SA110_CNTL |= (1 << 13); + } +} + #ifdef CONFIG_FOOTBRIDGE_ADDIN static inline unsigned long fb_bus_sdram_offset(void) |