diff options
| -rw-r--r-- | src/soc/nvidia/tegra124/Makefile.inc | 1 | ||||
| -rw-r--r-- | src/soc/nvidia/tegra124/power.c | 5 | ||||
| -rw-r--r-- | src/soc/nvidia/tegra124/power.h | 11 |
3 files changed, 17 insertions, 0 deletions
diff --git a/src/soc/nvidia/tegra124/Makefile.inc b/src/soc/nvidia/tegra124/Makefile.inc index fe66d43dbe..c7b2e16c4b 100644 --- a/src/soc/nvidia/tegra124/Makefile.inc +++ b/src/soc/nvidia/tegra124/Makefile.inc @@ -26,6 +26,7 @@ romstage-y += early_display.c romstage-y += dma.c romstage-y += i2c.c romstage-y += monotonic_timer.c +romstage-y += power.c romstage-y += sdram.c romstage-y += sdram_lp0.c romstage-y += spi.c diff --git a/src/soc/nvidia/tegra124/power.c b/src/soc/nvidia/tegra124/power.c index a3cf5ef63b..760d058712 100644 --- a/src/soc/nvidia/tegra124/power.c +++ b/src/soc/nvidia/tegra124/power.c @@ -85,3 +85,8 @@ void power_ungate_cpu(void) // Ungate power to CPU0 in the fast cluster. power_ungate_partition(POWER_PARTID_CE0); } + +int power_reset_status(void) +{ + return read32(&pmc->rst_status) & 0x7; +} diff --git a/src/soc/nvidia/tegra124/power.h b/src/soc/nvidia/tegra124/power.h index 6454699a9c..130ed2525a 100644 --- a/src/soc/nvidia/tegra124/power.h +++ b/src/soc/nvidia/tegra124/power.h @@ -26,4 +26,15 @@ void power_enable_cpu_rail(void); void power_ungate_cpu(void); +// power_reset_status returns one of the following possible sources for the +// most recent reset. +enum { + POWER_RESET_POR = 0, + POWER_RESET_WATCHDOG = 1, + POWER_RESET_SENSOR = 2, + POWER_RESET_SW_MAIN = 3, + POWER_RESET_LP0 = 4 +}; +int power_reset_status(void); + #endif /* __SOC_NVIDIA_TEGRA124_POWER_H__ */ |