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authorBen Dooks <ben-linux@fluff.org>2005-11-08 17:43:05 -0500
committerRussell King <rmk+kernel@arm.linux.org.uk>2005-11-08 17:43:05 -0500
commitf8c905d368c757e2c96db293a472a31abcf4b147 (patch)
treeff762892db823ec597eba3cd895575c4d09d7762 /include
parent4c18ad20493c9eac6e7d0c2a05156acfc02d9b6b (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')
-rw-r--r--include/asm-arm/arch-s3c2410/uncompress.h22
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 d7a4a8354fa9..ddd1578a7ee0 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)
116 } 116 }
117} 117}
118 118
119#define __raw_writel(d,ad) do { *((volatile unsigned int *)(ad)) = (d); } while(0)
120
119/* CONFIG_S3C2410_BOOT_WATCHDOG 121/* CONFIG_S3C2410_BOOT_WATCHDOG
120 * 122 *
121 * Simple boot-time watchdog setup, to reboot the system if there is 123 * Simple boot-time watchdog setup, to reboot the system if there is
@@ -126,8 +128,6 @@ putstr(const char *ptr)
126 128
127#define WDOG_COUNT (0xff00) 129#define WDOG_COUNT (0xff00)
128 130
129#define __raw_writel(d,ad) do { *((volatile unsigned int *)(ad)) = (d); } while(0)
130
131static inline void arch_decomp_wdog(void) 131static inline void arch_decomp_wdog(void)
132{ 132{
133 __raw_writel(WDOG_COUNT, S3C2410_WTCNT); 133 __raw_writel(WDOG_COUNT, S3C2410_WTCNT);
@@ -145,6 +145,24 @@ static void arch_decomp_wdog_start(void)
145#define arch_decomp_wdog() 145#define arch_decomp_wdog()
146#endif 146#endif
147 147
148#ifdef CONFIG_S3C2410_BOOT_ERROR_RESET
149
150static void arch_decomp_error(const char *x)
151{
152 putstr("\n\n");
153 putstr(x);
154 putstr("\n\n -- System resetting\n");
155
156 __raw_writel(0x4000, S3C2410_WTDAT);
157 __raw_writel(0x4000, S3C2410_WTCNT);
158 __raw_writel(S3C2410_WTCON_ENABLE | S3C2410_WTCON_DIV128 | S3C2410_WTCON_RSTEN | S3C2410_WTCON_PRESCALE(0x40), S3C2410_WTCON);
159
160 while(1);
161}
162
163#define arch_error arch_decomp_error
164#endif
165
148static void error(char *err); 166static void error(char *err);
149 167
150static void 168static void