diff options
Diffstat (limited to 'chip/it83xx/system.c')
| -rw-r--r-- | chip/it83xx/system.c | 27 |
1 files changed, 24 insertions, 3 deletions
diff --git a/chip/it83xx/system.c b/chip/it83xx/system.c index ffeae356fe..8d434c9c5c 100644 --- a/chip/it83xx/system.c +++ b/chip/it83xx/system.c @@ -31,14 +31,23 @@ static void check_reset_cause(void) { uint32_t flags = 0; uint8_t raw_reset_cause = IT83XX_GCTRL_RSTS & 0x03; + uint8_t raw_reset_cause2 = IT83XX_GCTRL_SPCTRL4 & 0x07; /* Clear reset cause. */ - IT83XX_GCTRL_RSTS |= 0x01; + IT83XX_GCTRL_RSTS |= 0x03; + IT83XX_GCTRL_SPCTRL4 |= 0x07; /* Determine if watchdog reset or power on reset. */ - if (raw_reset_cause & 0x02) + if (raw_reset_cause & 0x02) { flags |= RESET_FLAG_WATCHDOG; - else + } else if (raw_reset_cause & 0x01) { + flags |= RESET_FLAG_POWER_ON; + } else { + if ((IT83XX_GCTRL_RSTS & 0xC0) == 0x80) + flags |= RESET_FLAG_POWER_ON; + } + + if (raw_reset_cause2 & 0x04) flags |= RESET_FLAG_POWER_ON; /* Restore then clear saved reset flags. */ @@ -167,3 +176,15 @@ int system_get_console_force_enabled(void) /* TODO(crosbug.com/p/23575): IMPLEMENT ME ! */ return 0; } + +uintptr_t system_get_fw_reset_vector(uintptr_t base) +{ + uintptr_t reset_vector, num; + + num = *(uintptr_t *)base; + reset_vector = ((num>>24)&0xff) | ((num<<8)&0xff0000) | + ((num>>8)&0xff00) | ((num<<24)&0xff000000); + reset_vector = ((reset_vector & 0xffffff) << 1) + base; + + return reset_vector; +} |