diff options
| author | David Gibson <david@gibson.dropbear.id.au> | 2005-06-23 17:14:39 +1000 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2005-06-23 17:14:39 +1000 |
| commit | d7152fe14cad075d6dd4ee4194acd131aed0244e (patch) | |
| tree | eb814e3a04b0ca396eed9b1c1d30ebb3a667daff /arch/ppc64/kernel/setup.c | |
| parent | dad32bbf43b496bcd32a83f73a1e7fd0a02cfd3e (diff) | |
[PATCH] Maple powerdown patch
Currently reset and powerdown are not implemented on the Maple board,
and attempting to do so will (incorrectly return). This implements
the proper communication with the service processor, allowing correct
reset and powerdown on the Maple board, by communicating with the
service processor. If somehow it's unable to communicate with the
service processor it will loop forever instead.
Note that powerdown on the Maple will power down the CPUs, but not the
fans or other board components due to hardware and firmware
limitations.
Signed-off-by: David Gibson <dwg@au1.ibm.com>
Signed-off-by: Frank Rowand <frowand@mvista.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/ppc64/kernel/setup.c')
| -rw-r--r-- | arch/ppc64/kernel/setup.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/arch/ppc64/kernel/setup.c b/arch/ppc64/kernel/setup.c index 8a1ca695f8a7..7d060ddb5e93 100644 --- a/arch/ppc64/kernel/setup.c +++ b/arch/ppc64/kernel/setup.c @@ -683,6 +683,12 @@ void machine_restart(char *cmd) if (ppc_md.nvram_sync) ppc_md.nvram_sync(); ppc_md.restart(cmd); +#ifdef CONFIG_SMP + smp_send_stop(); +#endif + printk(KERN_EMERG "System Halted, OK to turn off power\n"); + local_irq_disable(); + while (1) ; } EXPORT_SYMBOL(machine_restart); @@ -692,6 +698,12 @@ void machine_power_off(void) if (ppc_md.nvram_sync) ppc_md.nvram_sync(); ppc_md.power_off(); +#ifdef CONFIG_SMP + smp_send_stop(); +#endif + printk(KERN_EMERG "System Halted, OK to turn off power\n"); + local_irq_disable(); + while (1) ; } EXPORT_SYMBOL(machine_power_off); @@ -701,6 +713,12 @@ void machine_halt(void) if (ppc_md.nvram_sync) ppc_md.nvram_sync(); ppc_md.halt(); +#ifdef CONFIG_SMP + smp_send_stop(); +#endif + printk(KERN_EMERG "System Halted, OK to turn off power\n"); + local_irq_disable(); + while (1) ; } EXPORT_SYMBOL(machine_halt); |