+// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2010
* Texas Instruments, <www.ti.com>
- *
- * SPDX-License-Identifier: GPL-2.0+
*/
#include <config.h>
-#ifdef CONFIG_TWL6030_POWER
+#include <linux/delay.h>
#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;
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;
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;
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);
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);
{
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();
}
/* 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;
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);
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 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);
+}
- /* Select the input supply for VBUS regulator */
- twl6030_i2c_write_u8(TWL6030_CHIP_PM, MISC2, data);
+#ifdef CONFIG_DM_I2C
+int twl6030_i2c_write_u8(u8 chip_no, u8 reg, u8 val)
+{
+ struct udevice *dev;
+ int ret;
+
+ ret = i2c_get_chip_for_busnum(0, chip_no, 1, &dev);
+ if (ret) {
+ pr_err("unable to get I2C bus. ret %d\n", ret);
+ return ret;
+ }
+ ret = dm_i2c_reg_write(dev, reg, val);
+ if (ret) {
+ pr_err("writing to twl6030 failed. ret %d\n", ret);
+ return ret;
+ }
+ return 0;
+}
+
+int twl6030_i2c_read_u8(u8 chip_no, u8 reg, u8 *valp)
+{
+ struct udevice *dev;
+ int ret;
+
+ ret = i2c_get_chip_for_busnum(0, chip_no, 1, &dev);
+ if (ret) {
+ pr_err("unable to get I2C bus. ret %d\n", ret);
+ return ret;
+ }
+ ret = dm_i2c_reg_read(dev, reg);
+ if (ret < 0) {
+ pr_err("reading from twl6030 failed. ret %d\n", ret);
+ return ret;
+ }
+ *valp = (u8)ret;
+ return 0;
}
#endif
projects / oweals / u-boot.git / blobdiff