diff options
Diffstat (limited to 'board/st/common/stpmic1.c')
| -rw-r--r-- | board/st/common/stpmic1.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/board/st/common/stpmic1.c b/board/st/common/stpmic1.c index 41111c5..85f9505 100644 --- a/board/st/common/stpmic1.c +++ b/board/st/common/stpmic1.c @@ -5,6 +5,7 @@ #include <common.h> #include <dm.h> +#include <asm/io.h> #include <asm/arch/ddr.h> #include <linux/bitops.h> #include <linux/delay.h> @@ -162,3 +163,33 @@ int board_ddr_power_init(enum ddr_type ddr_type) return 0; } + +/* early init of PMIC */ +void stpmic1_init(void) +{ + struct udevice *dev; + + if (uclass_get_device_by_driver(UCLASS_PMIC, + DM_GET_DRIVER(pmic_stpmic1), &dev)) + return; + + /* Keep vdd on during the reset cycle */ + pmic_clrsetbits(dev, + STPMIC1_BUCKS_MRST_CR, + STPMIC1_MRST_BUCK(STPMIC1_BUCK3), + STPMIC1_MRST_BUCK(STPMIC1_BUCK3)); + + /* Check if debug is enabled to program PMIC according to the bit */ + if (readl(TAMP_BOOT_CONTEXT) & TAMP_BOOT_DEBUG_ON) { + printf("Keep debug unit ON\n"); + + pmic_clrsetbits(dev, STPMIC1_BUCKS_MRST_CR, + STPMIC1_MRST_BUCK_DEBUG, + STPMIC1_MRST_BUCK_DEBUG); + + if (STPMIC1_MRST_LDO_DEBUG) + pmic_clrsetbits(dev, STPMIC1_LDOS_MRST_CR, + STPMIC1_MRST_LDO_DEBUG, + STPMIC1_MRST_LDO_DEBUG); + } +} |