diff options
Diffstat (limited to 'qemu/roms/u-boot/drivers/power/twl6030.c')
| -rw-r--r-- | qemu/roms/u-boot/drivers/power/twl6030.c | 235 |
1 files changed, 0 insertions, 235 deletions
diff --git a/qemu/roms/u-boot/drivers/power/twl6030.c b/qemu/roms/u-boot/drivers/power/twl6030.c deleted file mode 100644 index a1c6663a2..000000000 --- a/qemu/roms/u-boot/drivers/power/twl6030.c +++ /dev/null @@ -1,235 +0,0 @@ -/* - * (C) Copyright 2010 - * Texas Instruments, <www.ti.com> - * - * SPDX-License-Identifier: GPL-2.0+ - */ -#include <config.h> -#ifdef CONFIG_TWL6030_POWER - -#include <twl6030.h> - -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; - u8 msb = 0; - int ret = 0; - - ret = twl6030_i2c_read_u8(TWL6030_CHIP_ADC, - twl->adc_rbase + channel_no * 2, &lsb); - if (ret) - return ret; - - ret = twl6030_i2c_read_u8(TWL6030_CHIP_ADC, - twl->adc_rbase + 1 + channel_no * 2, &msb); - if (ret) - return ret; - - return (msb << 8) | lsb; -} - -static int twl6030_gpadc_sw2_trigger(void) -{ - u8 val; - int ret = 0; - - ret = twl6030_i2c_write_u8(TWL6030_CHIP_ADC, - twl->adc_ctrl, twl->adc_enable); - if (ret) - return ret; - - /* Waiting until the SW1 conversion ends*/ - val = CTRL_P2_BUSY; - - while (!((val & CTRL_P2_EOCP2) && (!(val & CTRL_P2_BUSY)))) { - ret = twl6030_i2c_read_u8(TWL6030_CHIP_ADC, - twl->adc_ctrl, &val); - if (ret) - return ret; - udelay(1000); - } - - return 0; -} - -void twl6030_stop_usb_charging(void) -{ - twl6030_i2c_write_u8(TWL6030_CHIP_CHARGER, CONTROLLER_CTRL1, 0); - - return; -} - -void twl6030_start_usb_charging(void) -{ - twl6030_i2c_write_u8(TWL6030_CHIP_CHARGER, - CHARGERUSB_VICHRG, CHARGERUSB_VICHRG_1500); - twl6030_i2c_write_u8(TWL6030_CHIP_CHARGER, - CHARGERUSB_CINLIMIT, CHARGERUSB_CIN_LIMIT_NONE); - twl6030_i2c_write_u8(TWL6030_CHIP_CHARGER, - CONTROLLER_INT_MASK, MBAT_TEMP); - twl6030_i2c_write_u8(TWL6030_CHIP_CHARGER, - CHARGERUSB_INT_MASK, MASK_MCHARGERUSB_THMREG); - twl6030_i2c_write_u8(TWL6030_CHIP_CHARGER, - CHARGERUSB_VOREG, CHARGERUSB_VOREG_4P0); - twl6030_i2c_write_u8(TWL6030_CHIP_CHARGER, - CHARGERUSB_CTRL2, CHARGERUSB_CTRL2_VITERM_400); - twl6030_i2c_write_u8(TWL6030_CHIP_CHARGER, CHARGERUSB_CTRL1, TERM); - /* Enable USB charging */ - twl6030_i2c_write_u8(TWL6030_CHIP_CHARGER, - CONTROLLER_CTRL1, CONTROLLER_CTRL1_EN_CHARGER); - return; -} - -int twl6030_get_battery_current(void) -{ - int battery_current = 0; - u8 msb = 0; - u8 lsb = 0; - - twl6030_i2c_read_u8(TWL6030_CHIP_CHARGER, FG_REG_11, &msb); - twl6030_i2c_read_u8(TWL6030_CHIP_CHARGER, FG_REG_10, &lsb); - battery_current = ((msb << 8) | lsb); - - /* convert 10 bit signed number to 16 bit signed number */ - if (battery_current >= 0x2000) - battery_current = (battery_current - 0x4000); - - battery_current = battery_current * 3000 / 4096; - printf("Battery Current: %d mA\n", battery_current); - - return battery_current; -} - -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(); - if (ret) { - printf("Failed to convert battery voltage\n"); - return ret; - } - - /* measure Vbat voltage */ - battery_volt = twl6030_gpadc_read_channel(vbatch); - if (battery_volt < 0) { - printf("Failed to read battery voltage\n"); - return ret; - } - battery_volt = (battery_volt * twl->vbat_mult) >> twl->vbat_shift; - printf("Battery Voltage: %d mV\n", battery_volt); - - return battery_volt; -} - -void twl6030_init_battery_charging(void) -{ - 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 */ - 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); - if (ret) { - printf("Failed to enable GPADC\n"); - return; - } - - battery_volt = twl6030_get_battery_voltage(); - if (battery_volt < 0) - return; - - if (battery_volt < 3000) - printf("Main battery voltage too low!\n"); - - /* Check for the presence of USB charger */ - twl6030_i2c_read_u8(TWL6030_CHIP_CHARGER, CONTROLLER_STAT1, &val); - - /* check for battery presence indirectly via Fuel gauge */ - if ((val & VBUS_DET) && (battery_volt < 3300)) - twl6030_start_usb_charging(); - - return; -} - -void twl6030_power_mmc_init() -{ - /* 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); -} - -void twl6030_usb_device_settings() -{ - u8 data = 0; - - /* Select APP Group and set state to ON */ - twl6030_i2c_write_u8(TWL6030_CHIP_PM, VUSB_CFG_STATE, 0x21); - - twl6030_i2c_read_u8(TWL6030_CHIP_PM, MISC2, &data); - data |= 0x10; - - /* Select the input supply for VBUS regulator */ - twl6030_i2c_write_u8(TWL6030_CHIP_PM, MISC2, data); -} -#endif |