diff options
| author | Ben Dooks <ben-linux@fluff.org> | 2005-11-08 22:43:05 +0000 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2005-11-08 22:43:05 +0000 |
| commit | f8c905d368c757e2c96db293a472a31abcf4b147 (patch) | |
| tree | ff762892db823ec597eba3cd895575c4d09d7762 /include/asm-arm/arch-s3c2410/uncompress.h | |
| parent | 4c18ad20493c9eac6e7d0c2a05156acfc02d9b6b (diff) | |
[ARM] 3132/1: S3C2410 - reset on decompression error
Patch from Ben Dooks
Force a watchdog reset if the system fails to
decompress properly.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'include/asm-arm/arch-s3c2410/uncompress.h')
| -rw-r--r-- | include/asm-arm/arch-s3c2410/uncompress.h | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/include/asm-arm/arch-s3c2410/uncompress.h b/include/asm-arm/arch-s3c2410/uncompress.h index d7a4a8354fa..ddd1578a7ee 100644 --- a/include/asm-arm/arch-s3c2410/uncompress.h +++ b/include/asm-arm/arch-s3c2410/uncompress.h @@ -116,6 +116,8 @@ putstr(const char *ptr) } } +#define __raw_writel(d,ad) do { *((volatile unsigned int *)(ad)) = (d); } while(0) + /* CONFIG_S3C2410_BOOT_WATCHDOG * * Simple boot-time watchdog setup, to reboot the system if there is @@ -126,8 +128,6 @@ putstr(const char *ptr) #define WDOG_COUNT (0xff00) -#define __raw_writel(d,ad) do { *((volatile unsigned int *)(ad)) = (d); } while(0) - static inline void arch_decomp_wdog(void) { __raw_writel(WDOG_COUNT, S3C2410_WTCNT); @@ -145,6 +145,24 @@ static void arch_decomp_wdog_start(void) #define arch_decomp_wdog() #endif +#ifdef CONFIG_S3C2410_BOOT_ERROR_RESET + +static void arch_decomp_error(const char *x) +{ + putstr("\n\n"); + putstr(x); + putstr("\n\n -- System resetting\n"); + + __raw_writel(0x4000, S3C2410_WTDAT); + __raw_writel(0x4000, S3C2410_WTCNT); + __raw_writel(S3C2410_WTCON_ENABLE | S3C2410_WTCON_DIV128 | S3C2410_WTCON_RSTEN | S3C2410_WTCON_PRESCALE(0x40), S3C2410_WTCON); + + while(1); +} + +#define arch_error arch_decomp_error +#endif + static void error(char *err); static void |