diff options
| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2011-09-19 18:28:03 +0000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2011-09-20 16:09:55 +1000 |
| commit | ec27329ffb3b4f619be9f0065c473fcb36ea52ce (patch) | |
| tree | 417c97efc83929dfd17320b1e4a7b7f8130d5994 /arch | |
| parent | daea1175a9f0f70eab5b33e2827d57ba8c686816 (diff) | |
powerpc/powernv: Hookup reboot and poweroff functions
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 <benh@kernel.crashing.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | 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 07ba1ecd1807..0fac0a6c951e 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) |