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authorGreg Ungerer <gerg@snapgear.com>2005-11-02 15:12:42 +1000
committerLinus Torvalds <torvalds@g5.osdl.org>2005-11-01 21:41:20 -0800
commit01824853b1991b6ade506ee1b75f103a6eb8f558 (patch)
tree8533fd4983155854a60598af39a503dff68fab18 /include
parent06227039b5eb8ed5965f995e45c8cfee154fb883 (diff)
[PATCH] m68knommu: add 5208 ColdFire reset/reboot support
Add reset/reboot code to support the ColdFire 5208 family. Patch originally from Matt Wadell (from code originally written by Mike Lavender). Signed-off-by: Greg Ungerer <gerg@uclinux.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include')
-rw-r--r--include/asm-m68knommu/system.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/include/asm-m68knommu/system.h b/include/asm-m68knommu/system.h
index 53cbbad0f13..6338afc850b 100644
--- a/include/asm-m68knommu/system.h
+++ b/include/asm-m68knommu/system.h
@@ -312,6 +312,19 @@ cmpxchg(volatile int *p, int old, int new)
moveb #0x80, (%a0); \
"); \
})
+#elif defined(CONFIG_M520x)
+ /*
+ * The MCF5208 has a bit (SOFTRST) in memory (Reset Control Register
+ * RCR), that when set, resets the MCF5208.
+ */
+#define HARD_RESET_NOW() \
+({ \
+ unsigned char volatile *reset; \
+ asm("move.w #0x2700, %sr"); \
+ reset = ((volatile unsigned short *)(MCF_IPSBAR + 0xA0000)); \
+ while(1) \
+ *reset |= 0x80; \
+})
#else
#define HARD_RESET_NOW() ({ \
asm(" \