diff options
Diffstat (limited to 'board/nautilus/board.c')
| -rw-r--r-- | board/nautilus/board.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/board/nautilus/board.c b/board/nautilus/board.c index 76f158327d..95cb9fe7be 100644 --- a/board/nautilus/board.c +++ b/board/nautilus/board.c @@ -259,6 +259,50 @@ const struct temp_sensor_t temp_sensors[] = { }; BUILD_ASSERT(ARRAY_SIZE(temp_sensors) == TEMP_SENSOR_COUNT); +/* + * Check if PMIC fault registers indicate VR fault. If yes, print out fault + * register info to console. Additionally, set panic reason so that the OS can + * check for fault register info by looking at offset 0x14(PWRSTAT1) and + * 0x15(PWRSTAT2) in cros ec panicinfo. + */ +static void board_report_pmic_fault(const char *str) +{ + int vrfault, pwrstat1 = 0, pwrstat2 = 0; + uint32_t info; + + /* RESETIRQ1 -- Bit 4: VRFAULT */ + if (i2c_read8(I2C_PORT_PMIC, I2C_ADDR_BD99992, 0x8, &vrfault) + != EC_SUCCESS) + return; + + if (!(vrfault & (1 << 4))) + return; + + /* VRFAULT has occurred, print VRFAULT status bits. */ + + /* PWRSTAT1 */ + i2c_read8(I2C_PORT_PMIC, I2C_ADDR_BD99992, 0x16, &pwrstat1); + + /* PWRSTAT2 */ + i2c_read8(I2C_PORT_PMIC, I2C_ADDR_BD99992, 0x17, &pwrstat2); + + CPRINTS("PMIC VRFAULT: %s", str); + CPRINTS("PMIC VRFAULT: PWRSTAT1=0x%02x PWRSTAT2=0x%02x", pwrstat1, + pwrstat2); + + /* Clear all faults -- Write 1 to clear. */ + i2c_write8(I2C_PORT_PMIC, I2C_ADDR_BD99992, 0x8, (1 << 4)); + i2c_write8(I2C_PORT_PMIC, I2C_ADDR_BD99992, 0x16, pwrstat1); + i2c_write8(I2C_PORT_PMIC, I2C_ADDR_BD99992, 0x17, pwrstat2); + + /* + * Status of the fault registers can be checked in the OS by looking at + * offset 0x14(PWRSTAT1) and 0x15(PWRSTAT2) in cros ec panicinfo. + */ + info = ((pwrstat2 & 0xFF) << 8) | (pwrstat1 & 0xFF); + panic_set_reason(PANIC_SW_PMIC_FAULT, info, 0); +} + static void board_pmic_disable_slp_s0_vr_decay(void) { /* @@ -347,6 +391,8 @@ void power_board_handle_host_sleep_event(enum host_sleep_event state) static void board_pmic_init(void) { + board_report_pmic_fault("SYSJUMP"); + if (system_jumped_to_this_image()) return; @@ -658,6 +704,12 @@ void lid_angle_peripheral_enable(int enable) } #endif +static void board_chipset_reset(void) +{ + board_report_pmic_fault("CHIPSET RESET"); +} +DECLARE_HOOK(HOOK_CHIPSET_RESET, board_chipset_reset, HOOK_PRIO_DEFAULT); + /* Called on AP S3 -> S0 transition */ static void board_chipset_resume(void) { |