[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>
diff --git a/include/asm-m68knommu/system.h b/include/asm-m68knommu/system.h
index 53cbbad..6338afc 100644
--- a/include/asm-m68knommu/system.h
+++ b/include/asm-m68knommu/system.h
@@ -312,6 +312,19 @@
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(" \
