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author | David Gibson <david@gibson.dropbear.id.au> | 2007-06-13 14:52:58 +1000 |
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committer | Paul Mackerras <paulus@samba.org> | 2007-06-14 22:30:16 +1000 |
commit | 11123346bfba8e65631957c6c25ed1a6ca1b4ffe (patch) | |
tree | 81d0d58de9da85551c8a4fd1169a52399990c1f2 /arch/powerpc/boot/44x.c | |
parent | 4508dc21feb189159d4cc1d5b79c5a55fad5f2ed (diff) | |
download | linux-stable-11123346bfba8e65631957c6c25ed1a6ca1b4ffe.tar.gz linux-stable-11123346bfba8e65631957c6c25ed1a6ca1b4ffe.tar.bz2 linux-stable-11123346bfba8e65631957c6c25ed1a6ca1b4ffe.zip |
[POWERPC] Factor zImage's 44x reset code out of ebony.c
The ebony_exit() function which resets the Ebony board should in fact
be common to most if not all 44x boards. This moves the function out
into 44x.c, renaming it, so it can be used by other 44x platforms.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/boot/44x.c')
-rw-r--r-- | arch/powerpc/boot/44x.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/arch/powerpc/boot/44x.c b/arch/powerpc/boot/44x.c index d51377d9024f..bc3f570ff9ba 100644 --- a/arch/powerpc/boot/44x.c +++ b/arch/powerpc/boot/44x.c @@ -38,3 +38,19 @@ void ibm44x_fixup_memsize(void) dt_fixup_memory(0, memsize); } + +#define SPRN_DBCR0 0x134 +#define DBCR0_RST_SYSTEM 0x30000000 + +void ibm44x_dbcr_reset(void) +{ + unsigned long tmp; + + asm volatile ( + "mfspr %0,%1\n" + "oris %0,%0,%2@h\n" + "mtspr %1,%0" + : "=&r"(tmp) : "i"(SPRN_DBCR0), "i"(DBCR0_RST_SYSTEM) + ); + +} |