From: Liu Hui-R64343 <r64...@freescale.com>
factor out boot cause funciton to common code to avoid
the duplicate code in each board support package
Signed-off-by: Jason Liu <r64...@freescale.com>
---
arch/arm/cpu/armv7/mx5/soc.c | 18 ++++++++++++++++++
arch/arm/include/asm/arch-mx5/sys_proto.h | 1 +
2 files changed, 19 insertions(+), 0 deletions(-)
diff --git a/arch/arm/cpu/armv7/mx5/soc.c b/arch/arm/cpu/armv7/mx5/soc.c
index 09500b3..dddda08 100644
--- a/arch/arm/cpu/armv7/mx5/soc.c
+++ b/arch/arm/cpu/armv7/mx5/soc.c
@@ -77,6 +77,24 @@ u32 get_cpu_rev(void)
return system_rev;
}
+char *get_reset_cause(void)
+{
+ u32 cause;
+ struct src *src_regs = (struct src *)SRC_BASE_ADDR;
+
+ cause = readl(&src_regs->srsr);
+ switch (cause) {
+ case 0x0001:
+ return "POR";
+ case 0x0009:
+ return "RST";
+ case 0x0010:
+ case 0x0011:
+ return "WDOG";
+ default:
+ return "unknown reset";
+ }
+}
#if defined(CONFIG_DISPLAY_CPUINFO)
int print_cpuinfo(void)
diff --git a/arch/arm/include/asm/arch-mx5/sys_proto.h
b/arch/arm/include/asm/arch-mx5/sys_proto.h
index f687503..00c2c5d 100644
--- a/arch/arm/include/asm/arch-mx5/sys_proto.h
+++ b/arch/arm/include/asm/arch-mx5/sys_proto.h
@@ -27,5 +27,6 @@
u32 get_cpu_rev(void);
#define is_soc_rev(rev) ((get_cpu_rev() & 0xFF) - rev)
void sdelay(unsigned long);
+char *get_reset_cause(void);
#endif
--
1.7.1
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