Commit 01824853 authored by Greg Ungerer's avatar Greg Ungerer Committed by Linus Torvalds

[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: default avatarGreg Ungerer <gerg@uclinux.com>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 06227039
...@@ -312,6 +312,19 @@ cmpxchg(volatile int *p, int old, int new) ...@@ -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(" \
......
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