From 01824853b1991b6ade506ee1b75f103a6eb8f558 Mon Sep 17 00:00:00 2001
From: Greg Ungerer <gerg@snapgear.com>
Date: Wed, 2 Nov 2005 15:12:42 +1000
Subject: [PATCH] [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>
---
include/asm-m68knommu/system.h | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/include/asm-m68knommu/system.h b/include/asm-m68knommu/system.h
index 53cbbad0f1301..6338afc850bad 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(" \
--
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