This patch powers down the Malta in response to a power off command (eg.
poweroff or shutdown -P). It may then be powered back up by pressing the
"ON/NMI" button (S4) on the board. In cases where the power off state
cannot be entered (eg. because the required PCI support is disabled) the
current reset behaviour will be used as a fallback.
Tested-by: James Hogan <james.hogan@xxxxxxxxxx>
Signed-off-by: Paul Burton <paul.burton@xxxxxxxxxx>
---
Changes in v2:
- Rebase atop previous patches in this series which abstract the
PIIX4 suspend functionality, making this patch trivial and avoiding
build issues when CONFIG_PCI is disabled.
---
arch/mips/mti-malta/malta-reset.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/arch/mips/mti-malta/malta-reset.c b/arch/mips/mti-malta/malta-reset.c
index 4471dea..773aca9 100644
--- a/arch/mips/mti-malta/malta-reset.c
+++ b/arch/mips/mti-malta/malta-reset.c
@@ -10,6 +10,7 @@
#include <linux/pm.h>
#include <asm/reboot.h>
+#include <asm/mach-malta/malta-pm.h>
#define SOFTRES_REG 0x1f000500
#define GORESET 0x42
@@ -30,6 +31,9 @@ static void mips_machine_halt(void)
static void mips_machine_power_off(void)
{
+ mips_pm_suspend(PIIX4_FUNC3IO_PMCNTRL_SUS_TYP_SOFF);
+
+ pr_info("Failed to power down, resetting\n");
mips_machine_restart(NULL);
}
--
1.8.5.3
