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[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>
This commit is contained in:
Greg Ungerer 2005-11-02 15:12:42 +10:00 committed by Linus Torvalds
parent 06227039b5
commit 01824853b1
1 changed files with 13 additions and 0 deletions
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13
include/asm-m68knommu/system.h
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@ -312,6 +312,19 @@ cmpxchg(volatile int *p, int old, int new)
moveb #0x80, (%a0); \ 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 #else
#define HARD_RESET_NOW() ({ \ #define HARD_RESET_NOW() ({ \
asm(" \ asm(" \