X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=drivers%2Fpower%2Ftwl6030.c;h=cd532008bdd001184a93eb83b22b0e343b59c227;hb=dc19b06ff23fb8f97e445f1c94dd5ae43046ea61;hp=0858b60e06d3f4d5ff1d31f344e09e8752cd0e5c;hpb=aaf5e825606a70ddc8fca8e366d8c16a6fd3cc7c;p=u-boot diff --git a/drivers/power/twl6030.c b/drivers/power/twl6030.c index 0858b60e06..cd532008bd 100644 --- a/drivers/power/twl6030.c +++ b/drivers/power/twl6030.c @@ -5,10 +5,30 @@ * SPDX-License-Identifier: GPL-2.0+ */ #include -#ifdef CONFIG_TWL6030_POWER #include +static struct twl6030_data *twl; + +static struct twl6030_data twl6030_info = { + .chip_type = chip_TWL6030, + .adc_rbase = GPCH0_LSB, + .adc_ctrl = CTRL_P2, + .adc_enable = CTRL_P2_SP2, + .vbat_mult = TWL6030_VBAT_MULT, + .vbat_shift = TWL6030_VBAT_SHIFT, +}; + +static struct twl6030_data twl6032_info = { + .chip_type = chip_TWL6032, + .adc_rbase = TWL6032_GPCH0_LSB, + .adc_ctrl = TWL6032_CTRL_P1, + .adc_enable = CTRL_P1_SP1, + .vbat_mult = TWL6032_VBAT_MULT, + .vbat_shift = TWL6032_VBAT_SHIFT, +}; + + static int twl6030_gpadc_read_channel(u8 channel_no) { u8 lsb = 0; @@ -16,12 +36,12 @@ static int twl6030_gpadc_read_channel(u8 channel_no) int ret = 0; ret = twl6030_i2c_read_u8(TWL6030_CHIP_ADC, - GPCH0_LSB + channel_no * 2, &lsb); + twl->adc_rbase + channel_no * 2, &lsb); if (ret) return ret; ret = twl6030_i2c_read_u8(TWL6030_CHIP_ADC, - GPCH0_MSB + channel_no * 2, &msb); + twl->adc_rbase + 1 + channel_no * 2, &msb); if (ret) return ret; @@ -33,7 +53,8 @@ static int twl6030_gpadc_sw2_trigger(void) u8 val; int ret = 0; - ret = twl6030_i2c_write_u8(TWL6030_CHIP_ADC, CTRL_P2, CTRL_P2_SP2); + ret = twl6030_i2c_write_u8(TWL6030_CHIP_ADC, + twl->adc_ctrl, twl->adc_enable); if (ret) return ret; @@ -41,7 +62,8 @@ static int twl6030_gpadc_sw2_trigger(void) val = CTRL_P2_BUSY; while (!((val & CTRL_P2_EOCP2) && (!(val & CTRL_P2_BUSY)))) { - ret = twl6030_i2c_read_u8(TWL6030_CHIP_ADC, CTRL_P2, &val); + ret = twl6030_i2c_read_u8(TWL6030_CHIP_ADC, + twl->adc_ctrl, &val); if (ret) return ret; udelay(1000); @@ -50,6 +72,13 @@ static int twl6030_gpadc_sw2_trigger(void) return 0; } +void twl6030_power_off(void) +{ + twl6030_i2c_write_u8(TWL6030_CHIP_PM, TWL6030_PHOENIX_DEV_ON, + TWL6030_PHOENIX_APP_DEVOFF | TWL6030_PHOENIX_CON_DEVOFF | + TWL6030_PHOENIX_MOD_DEVOFF); +} + void twl6030_stop_usb_charging(void) { twl6030_i2c_write_u8(TWL6030_CHIP_CHARGER, CONTROLLER_CTRL1, 0); @@ -102,6 +131,18 @@ int twl6030_get_battery_voltage(void) { int battery_volt = 0; int ret = 0; + u8 vbatch; + + if (twl->chip_type == chip_TWL6030) { + vbatch = TWL6030_GPADC_VBAT_CHNL; + } else { + ret = twl6030_i2c_write_u8(TWL6030_CHIP_ADC, + TWL6032_GPSELECT_ISB, + TWL6032_GPADC_VBAT_CHNL); + if (ret) + return ret; + vbatch = 0; + } /* Start GPADC SW conversion */ ret = twl6030_gpadc_sw2_trigger(); @@ -111,12 +152,12 @@ int twl6030_get_battery_voltage(void) } /* measure Vbat voltage */ - battery_volt = twl6030_gpadc_read_channel(7); + battery_volt = twl6030_gpadc_read_channel(vbatch); if (battery_volt < 0) { printf("Failed to read battery voltage\n"); return ret; } - battery_volt = (battery_volt * 25 * 1000) >> (10 + 2); + battery_volt = (battery_volt * twl->vbat_mult) >> twl->vbat_shift; printf("Battery Voltage: %d mV\n", battery_volt); return battery_volt; @@ -124,12 +165,35 @@ int twl6030_get_battery_voltage(void) void twl6030_init_battery_charging(void) { - u8 stat1 = 0; + u8 val = 0; int battery_volt = 0; int ret = 0; + ret = twl6030_i2c_read_u8(TWL6030_CHIP_USB, USB_PRODUCT_ID_LSB, &val); + if (ret) { + puts("twl6030_init_battery_charging(): could not determine chip!\n"); + return; + } + if (val == 0x30) { + twl = &twl6030_info; + } else if (val == 0x32) { + twl = &twl6032_info; + } else { + puts("twl6030_init_battery_charging(): unsupported chip type\n"); + return; + } + /* Enable VBAT measurement */ - twl6030_i2c_write_u8(TWL6030_CHIP_PM, MISC1, VBAT_MEAS); + if (twl->chip_type == chip_TWL6030) { + twl6030_i2c_write_u8(TWL6030_CHIP_PM, MISC1, VBAT_MEAS); + twl6030_i2c_write_u8(TWL6030_CHIP_ADC, + TWL6030_GPADC_CTRL, + GPADC_CTRL_SCALER_DIV4); + } else { + twl6030_i2c_write_u8(TWL6030_CHIP_ADC, + TWL6032_GPADC_CTRL2, + GPADC_CTRL2_CH18_SCALER_EN); + } /* Enable GPADC module */ ret = twl6030_i2c_write_u8(TWL6030_CHIP_CHARGER, TOGGLE1, FGS | GPADCS); @@ -146,33 +210,62 @@ void twl6030_init_battery_charging(void) printf("Main battery voltage too low!\n"); /* Check for the presence of USB charger */ - twl6030_i2c_read_u8(TWL6030_CHIP_CHARGER, CONTROLLER_STAT1, &stat1); + twl6030_i2c_read_u8(TWL6030_CHIP_CHARGER, CONTROLLER_STAT1, &val); /* check for battery presence indirectly via Fuel gauge */ - if ((stat1 & VBUS_DET) && (battery_volt < 3300)) + if ((val & VBUS_DET) && (battery_volt < 3300)) twl6030_start_usb_charging(); return; } -void twl6030_power_mmc_init() +void twl6030_power_mmc_init(int dev_index) { - /* set voltage to 3.0 and turnon for APP */ - twl6030_i2c_write_u8(TWL6030_CHIP_PM, VMMC_CFG_VOLTATE, 0x15); - twl6030_i2c_write_u8(TWL6030_CHIP_PM, VMMC_CFG_STATE, 0x21); + u8 value = 0; + + if (dev_index == 0) { + /* 3.0V voltage output for VMMC */ + twl6030_i2c_write_u8(TWL6030_CHIP_PM, TWL6030_VMMC_CFG_VOLTAGE, + TWL6030_CFG_VOLTAGE_30); + + /* Enable P1 output for VMMC */ + twl6030_i2c_write_u8(TWL6030_CHIP_PM, TWL6030_VMMC_CFG_STATE, + TWL6030_CFG_STATE_P1 | TWL6030_CFG_STATE_ON); + } else if (dev_index == 1) { + 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() { - u8 data = 0; + u8 value = 0; - /* Select APP Group and set state to ON */ - twl6030_i2c_write_u8(TWL6030_CHIP_PM, VUSB_CFG_STATE, 0x21); + /* 3.3V voltage output for VUSB */ + twl6030_i2c_write_u8(TWL6030_CHIP_PM, TWL6030_VUSB_CFG_VOLTAGE, + TWL6030_CFG_VOLTAGE_33); - twl6030_i2c_read_u8(TWL6030_CHIP_PM, MISC2, &data); - data |= 0x10; + /* Enable P1 output for VUSB */ + twl6030_i2c_write_u8(TWL6030_CHIP_PM, TWL6030_VUSB_CFG_STATE, + TWL6030_CFG_STATE_P1 | TWL6030_CFG_STATE_ON); - /* Select the input supply for VBUS regulator */ - twl6030_i2c_write_u8(TWL6030_CHIP_PM, MISC2, data); + /* Select the input supply for VUSB regulator */ + twl6030_i2c_read_u8(TWL6030_CHIP_PM, TWL6030_MISC2, &value); + value |= TWL6030_MISC2_VUSB_IN_VSYS; + value &= ~TWL6030_MISC2_VUSB_IN_PMID; + twl6030_i2c_write_u8(TWL6030_CHIP_PM, TWL6030_MISC2, value); } -#endif