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[PATCH] powerpc: Allow for ppc_md restart, power_off, and halt to be NULL

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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>
This commit is contained in:
Kumar Gala
2006-01-13 10:15:17 -06:00
committed by Paul Mackerras
parent 7a45fb19ce
commit b8e383d592
1 changed files with 6 additions and 3 deletions
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3
arch/powerpc/kernel/setup-common.c
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@@ -100,6 +100,7 @@ void machine_shutdown(void)
void machine_restart(char *cmd) void machine_restart(char *cmd)
{ {
machine_shutdown(); machine_shutdown();
if (ppc_md.restart)
ppc_md.restart(cmd); ppc_md.restart(cmd);
#ifdef CONFIG_SMP #ifdef CONFIG_SMP
smp_send_stop(); smp_send_stop();
@@ -112,6 +113,7 @@ void machine_restart(char *cmd)
void machine_power_off(void) void machine_power_off(void)
{ {
machine_shutdown(); machine_shutdown();
if (ppc_md.power_off)
ppc_md.power_off(); ppc_md.power_off();
#ifdef CONFIG_SMP #ifdef CONFIG_SMP
smp_send_stop(); smp_send_stop();
@@ -129,6 +131,7 @@ EXPORT_SYMBOL_GPL(pm_power_off);
void machine_halt(void) void machine_halt(void)
{ {
machine_shutdown(); machine_shutdown();
if (ppc_md.halt)
ppc_md.halt(); ppc_md.halt();
#ifdef CONFIG_SMP #ifdef CONFIG_SMP
smp_send_stop(); smp_send_stop();