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authorKumar Gala <galak@gate.crashing.org>2006-01-13 10:15:17 -0600
committerPaul Mackerras <paulus@samba.org>2006-01-14 11:12:23 +1100
commitb8e383d592daaa35c944a9083ee92c995dce66ca (patch)
treec6ca29847f47f3a5cbb77b6529d8982c837d1029 /arch
parent7a45fb19cef93574230827e6e2c97ad5760ddecd (diff)
[PATCH] powerpc: Allow for ppc_md restart, power_off, and halt to be NULL
On a number of embedded reference boards there isn't always a way to reset, power_off, or halt the board. Rather than having each board implement a spin loop just let the generic code do it. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/powerpc/kernel/setup-common.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
index d5c52fae023..be12041c0fc 100644
--- a/arch/powerpc/kernel/setup-common.c
+++ b/arch/powerpc/kernel/setup-common.c
@@ -100,7 +100,8 @@ void machine_shutdown(void)
void machine_restart(char *cmd)
{
machine_shutdown();
- ppc_md.restart(cmd);
+ if (ppc_md.restart)
+ ppc_md.restart(cmd);
#ifdef CONFIG_SMP
smp_send_stop();
#endif
@@ -112,7 +113,8 @@ void machine_restart(char *cmd)
void machine_power_off(void)
{
machine_shutdown();
- ppc_md.power_off();
+ if (ppc_md.power_off)
+ ppc_md.power_off();
#ifdef CONFIG_SMP
smp_send_stop();
#endif
@@ -129,7 +131,8 @@ EXPORT_SYMBOL_GPL(pm_power_off);
void machine_halt(void)
{
machine_shutdown();
- ppc_md.halt();
+ if (ppc_md.halt)
+ ppc_md.halt();
#ifdef CONFIG_SMP
smp_send_stop();
#endif