diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/power/twl6030.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/power/twl6030.c b/drivers/power/twl6030.c index 8924f7f..2fb3967 100644 --- a/drivers/power/twl6030.c +++ b/drivers/power/twl6030.c @@ -214,6 +214,8 @@ void twl6030_init_battery_charging(void) void twl6030_power_mmc_init() { + u8 value = 0; + /* 3.0V voltage output for VMMC */ twl6030_i2c_write_u8(TWL6030_CHIP_PM, TWL6030_VMMC_CFG_VOLTAGE, TWL6030_CFG_VOLTAGE_30); @@ -221,6 +223,23 @@ void twl6030_power_mmc_init() /* Enable P1 output for VMMC */ twl6030_i2c_write_u8(TWL6030_CHIP_PM, TWL6030_VMMC_CFG_STATE, TWL6030_CFG_STATE_P1 | TWL6030_CFG_STATE_ON); + + twl6030_i2c_read_u8(TWL6030_CHIP_PM, TWL6030_PH_STS_BOOT, &value); + + /* BOOT2 indicates 1.8V/2.8V VAUX1 for eMMC */ + if (value & TWL6030_PH_STS_BOOT2) { + /* 1.8V voltage output for VAUX1 */ + twl6030_i2c_write_u8(TWL6030_CHIP_PM, TWL6030_VAUX1_CFG_VOLTAGE, + TWL6030_CFG_VOLTAGE_18); + } else { + /* 2.8V voltage output for VAUX1 */ + twl6030_i2c_write_u8(TWL6030_CHIP_PM, TWL6030_VAUX1_CFG_VOLTAGE, + TWL6030_CFG_VOLTAGE_28); + } + + /* Enable P1 output for VAUX */ + twl6030_i2c_write_u8(TWL6030_CHIP_PM, TWL6030_VAUX1_CFG_STATE, + TWL6030_CFG_STATE_P1 | TWL6030_CFG_STATE_ON); } void twl6030_usb_device_settings() |