This calls the respective HAL functions, and spin on hal_poll_event()
to ensure the HAL has a chance to communicate with the FSP to trigger
the reboot or shutdown operation
Signed-off-by: Benjamin Herrenschmidt <b...@kernel.crashing.org>
---
arch/powerpc/platforms/powernv/setup.c | 32 ++++++++++++++++++++++++++------
1 files changed, 26 insertions(+), 6 deletions(-)
diff --git a/arch/powerpc/platforms/powernv/setup.c
b/arch/powerpc/platforms/powernv/setup.c
index 07ba1ec..0fac0a6 100644
--- a/arch/powerpc/platforms/powernv/setup.c
+++ b/arch/powerpc/platforms/powernv/setup.c
@@ -83,19 +83,39 @@ static void pnv_show_cpuinfo(struct seq_file *m)
of_node_put(root);
}
-static void pnv_restart(char *cmd)
+static void __noreturn pnv_restart(char *cmd)
{
- for (;;);
+ long rc = OPAL_BUSY;
+
+ while (rc == OPAL_BUSY || rc == OPAL_BUSY_EVENT) {
+ rc = opal_cec_reboot();
+ if (rc == OPAL_BUSY_EVENT)
+ opal_poll_events(NULL);
+ else
+ mdelay(10);
+ }
+ for (;;)
+ opal_poll_events(NULL);
}
-static void pnv_power_off(void)
+static void __noreturn pnv_power_off(void)
{
- for (;;);
+ long rc = OPAL_BUSY;
+
+ while (rc == OPAL_BUSY || rc == OPAL_BUSY_EVENT) {
+ rc = opal_cec_power_down(0);
+ if (rc == OPAL_BUSY_EVENT)
+ opal_poll_events(NULL);
+ else
+ mdelay(10);
+ }
+ for (;;)
+ opal_poll_events(NULL);
}
-static void pnv_halt(void)
+static void __noreturn pnv_halt(void)
{
- for (;;);
+ pnv_power_off();
}
static unsigned long __init pnv_get_boot_time(void)
--
1.7.4.1
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