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-rw-r--r--arch/powerpc/kernel/rtas.c19
1 files changed, 18 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/rtas.c b/arch/powerpc/kernel/rtas.c
index 4d22eeeeb91d..b7fc2d884950 100644
--- a/arch/powerpc/kernel/rtas.c
+++ b/arch/powerpc/kernel/rtas.c
@@ -43,6 +43,13 @@ char rtas_data_buf[RTAS_DATA_BUF_SIZE] __cacheline_aligned;
43unsigned long rtas_rmo_buf; 43unsigned long rtas_rmo_buf;
44 44
45/* 45/*
46 * If non-NULL, this gets called when the kernel terminates.
47 * This is done like this so rtas_flash can be a module.
48 */
49void (*rtas_flash_term_hook)(int);
50EXPORT_SYMBOL(rtas_flash_term_hook);
51
52/*
46 * call_rtas_display_status and call_rtas_display_status_delay 53 * call_rtas_display_status and call_rtas_display_status_delay
47 * are designed only for very early low-level debugging, which 54 * are designed only for very early low-level debugging, which
48 * is why the token is hard-coded to 10. 55 * is why the token is hard-coded to 10.
@@ -206,6 +213,7 @@ void rtas_progress(char *s, unsigned short hex)
206 213
207 spin_unlock(&progress_lock); 214 spin_unlock(&progress_lock);
208} 215}
216EXPORT_SYMBOL(rtas_progress); /* needed by rtas_flash module */
209 217
210int rtas_token(const char *service) 218int rtas_token(const char *service)
211{ 219{
@@ -492,6 +500,8 @@ int rtas_set_indicator(int indicator, int index, int new_value)
492 500
493void rtas_restart(char *cmd) 501void rtas_restart(char *cmd)
494{ 502{
503 if (rtas_flash_term_hook)
504 rtas_flash_term_hook(SYS_RESTART);
495 printk("RTAS system-reboot returned %d\n", 505 printk("RTAS system-reboot returned %d\n",
496 rtas_call(rtas_token("system-reboot"), 0, 1, NULL)); 506 rtas_call(rtas_token("system-reboot"), 0, 1, NULL));
497 for (;;); 507 for (;;);
@@ -499,6 +509,8 @@ void rtas_restart(char *cmd)
499 509
500void rtas_power_off(void) 510void rtas_power_off(void)
501{ 511{
512 if (rtas_flash_term_hook)
513 rtas_flash_term_hook(SYS_POWER_OFF);
502 /* allow power on only with power button press */ 514 /* allow power on only with power button press */
503 printk("RTAS power-off returned %d\n", 515 printk("RTAS power-off returned %d\n",
504 rtas_call(rtas_token("power-off"), 2, 1, NULL, -1, -1)); 516 rtas_call(rtas_token("power-off"), 2, 1, NULL, -1, -1));
@@ -507,7 +519,12 @@ void rtas_power_off(void)
507 519
508void rtas_halt(void) 520void rtas_halt(void)
509{ 521{
510 rtas_power_off(); 522 if (rtas_flash_term_hook)
523 rtas_flash_term_hook(SYS_HALT);
524 /* allow power on only with power button press */
525 printk("RTAS power-off returned %d\n",
526 rtas_call(rtas_token("power-off"), 2, 1, NULL, -1, -1));
527 for (;;);
511} 528}
512 529
513/* Must be in the RMO region, so we place it here */ 530/* Must be in the RMO region, so we place it here */