Add charger initiation (fast charge, 2.8A/1.2A max charge current from POGO/USB-C respectively)
Steinar Bakkemo
parent
09beb5f06d
commit
e2e8caca54
|
|
@ -9,4 +9,5 @@ obj-y := zero-sugar.o \
|
|||
epd_init.o \
|
||||
lcd_init.o \
|
||||
digitizer_init.o \
|
||||
charger_init.o \
|
||||
../../freescale/common/mmc.o
|
||||
|
|
|
|||
|
|
@ -0,0 +1,570 @@
|
|||
#include "charger_init.h"
|
||||
|
||||
#include <asm/arch/sys_proto.h>
|
||||
#include <asm/gpio.h>
|
||||
#include <dm/uclass.h>
|
||||
|
||||
#include <linux/errno.h>
|
||||
#include <linux/types.h>
|
||||
|
||||
#define MAX77818_I2C_BUS 1
|
||||
|
||||
#define MAX77818_CHARGER_I2C_ADDR 0x69
|
||||
#define MAX77818_FG_I2C_ADDR 0x36
|
||||
#define MAX77818_ID_I2C_ADDR 0x66
|
||||
|
||||
#define MAX77818_REG_DETAILS_0 0xB3
|
||||
#define MAX77818_DETAILS_0__BAT_DET_MASK 0x01
|
||||
#define MAX77818_DETAILS_0__BAT_DET_SHIFT 0x00
|
||||
#define MAX77818_DETAILS_0__BAT_PRECENT 0x00
|
||||
#define MAX77818_DETAILS_0__BAT_NOT_PRECENT 0x01
|
||||
#define MAX77818_DETAILS_0__WCIN_DETAILS_MASK 0x18
|
||||
#define MAX77818_DETAILS_0__WCIN_DETAILS_SHIFT 0x03
|
||||
#define MAX77818_DETAILS_0__INV_WCIN_BELOW_WCINUVLO 0x00
|
||||
#define MAX77818_DETAILS_0__INV_WCIN_ABOVE_WCINUVLO 0x01
|
||||
#define MAX77818_DETAILS_0__INV_WCIN_ABOVE_WCINOVLO 0x02
|
||||
#define MAX77818_DETAILS_0__OK_WCIN_BELOW_WCINOVLO 0x03
|
||||
#define MAX77818_DETAILS_0__CHGIN_DETAILS_MASK 0x60
|
||||
#define MAX77818_DETAILS_0__CHGIN_DETAILS_SHIFT 0x05
|
||||
#define MAX77818_DETAILS_0__INV_CHGIN_BELOW_CHGINUVLO 0x00
|
||||
#define MAX77818_DETAILS_0__INV_CHGIN_ABOVE_CHGINUVLO 0x01
|
||||
#define MAX77818_DETAILS_0__INV_CHGIN_ABOVE_CHGINOVLO 0x02
|
||||
#define MAX77818_DETAILS_0__OK_CHGIN_BELOW_CHGINOVLO 0x03
|
||||
|
||||
|
||||
#define MAX77818_REG_DETAILS_1 0xB4
|
||||
|
||||
#define MAX77818_REG_DETAILS_2 0xB5
|
||||
|
||||
#define MAX77818_REG_CHGPROT 0xBD
|
||||
#define MAX77818_CHGPROT__MASK 0x0C
|
||||
#define MAX77818_CHGPROT__UNLOCK 0x0C
|
||||
#define MAX77818_CHGPROT__LOCK 0x00
|
||||
|
||||
#define MAX77818_REG_CHG_CNFG_0 0xB7
|
||||
#define MAX77818_CHG_CNFG_0__MODE__MASK 0x0F
|
||||
#define MAX77818_CHG_CNFG_0__MODE__OTG_BOOST_BUCK_ON 0x0E
|
||||
#define MAX77818_CHG_CNFG_0__MODE__CHARGER_BUCK_O 0x05
|
||||
|
||||
#define MAX77818_REG_CHG_CNFG_02 0xB9
|
||||
#define MAX77818_CHG_CNFG_02__CHARGE_CC__MASK 0x3F
|
||||
#define MAX77818_CHG_CNFG_02__CHARGE_CC__FAST_CHARGE_2_8MA 0x38
|
||||
|
||||
#define MAX77818_REG_CHG_CNFG_04 0xBB
|
||||
#define MAX77818_CHG_CNFG_04__CHG_CV_PRM__MASK 0x3F
|
||||
#define MAX77818_CHG_CNFG_04__CHG_CV_PRM__4V3 0x1A
|
||||
#define MAX77818_CHG_CNFG_04__MINVSYS__MASK 0xC0
|
||||
#define MAX77818_CHG_CNFG_04__MINVSYS__3_4V_VSYS_MIN 0x00
|
||||
|
||||
#define MAX77818_REG_CHG_CNFG_09 0xC0
|
||||
#define MAX77818_CHG_CNFG_09__CHGIN_ILIM__MASK 0x7f
|
||||
#define MAX77818_CHG_CNFG_09__CHGIN_ILIM_2800_M_A_MAX 0x54
|
||||
|
||||
#define MAX77818_REG_CHG_CNFG_10 0xC1
|
||||
#define MAX77818_CHG_CNFG_10__WCIN_ILIM__MASK 0x3F
|
||||
#define MAX77818_CHG_CNFG_10__WCIN_ILIM__1260_M_A_MAX 0x3F
|
||||
|
||||
static struct udevice *bus = NULL, *idDev = NULL, *chDev = NULL, *fgDev = NULL;
|
||||
|
||||
int max77818_i2c_reg_write(struct udevice *dev, uint addr, uint mask, uint data)
|
||||
{
|
||||
u8 valb;
|
||||
int ret;
|
||||
|
||||
if (mask != 0xff) {
|
||||
printf("Reading 1 byte from addr 0x%02X on dev %s\n", addr, dev->name);
|
||||
ret = dm_i2c_read(dev, addr, &valb, 1);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
printf("Applying mask 0x%08X to read value (0x%08X)\n", mask, valb);
|
||||
valb &= ~mask;
|
||||
|
||||
printf("Setting value 0x%08X\n", data);
|
||||
valb |= data;
|
||||
} else {
|
||||
printf("Setting value 0x%08X\n", data);
|
||||
valb = data;
|
||||
}
|
||||
|
||||
printf("Writing back value 0x%02X\n", valb);
|
||||
ret = dm_i2c_write(dev, addr, &valb, 1);
|
||||
return ret;
|
||||
}
|
||||
|
||||
//int max77818_i2c_reg_read(struct udevice *dev, u8 addr, u8 *data)
|
||||
//{
|
||||
// u8 valb;
|
||||
// int ret;
|
||||
|
||||
// ret = dm_i2c_read(dev, addr, &valb, 1);
|
||||
// if (ret)
|
||||
// return ret;
|
||||
|
||||
// printf("Read data: 0x%02X\n", valb);
|
||||
// *data = valb;
|
||||
// return 0;
|
||||
//}
|
||||
|
||||
int max77818_get_details_1(struct udevice *dev)
|
||||
{
|
||||
u8 regVal;
|
||||
int ret;
|
||||
|
||||
ret = dm_i2c_read(dev, MAX77818_REG_DETAILS_1, ®Val, 1);
|
||||
if (ret) {
|
||||
return ret;
|
||||
}
|
||||
|
||||
printf("Read DETAILS_1: 0x%02X\n", regVal);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int max77818_get_details_2(struct udevice *dev)
|
||||
{
|
||||
u8 regVal;
|
||||
int ret;
|
||||
|
||||
ret = dm_i2c_read(dev, MAX77818_REG_DETAILS_2, ®Val, 1);
|
||||
if (ret) {
|
||||
return ret;
|
||||
}
|
||||
|
||||
printf("Read DETAILS_2: 0x%02X\n", regVal);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int max77818_get_battery_status(struct udevice *dev)
|
||||
{
|
||||
u8 regVal;
|
||||
int ret;
|
||||
|
||||
ret = dm_i2c_read(dev, MAX77818_REG_DETAILS_0, ®Val, 1);
|
||||
if (ret) {
|
||||
printf("Failed to read DETAIL_0 register !\n");
|
||||
return ret;
|
||||
}
|
||||
|
||||
regVal &= MAX77818_DETAILS_0__BAT_DET_MASK;
|
||||
regVal >>= MAX77818_DETAILS_0__BAT_DET_SHIFT;
|
||||
|
||||
switch(regVal)
|
||||
{
|
||||
case MAX77818_DETAILS_0__BAT_PRECENT:
|
||||
printf("Battery is precent\n");
|
||||
break;
|
||||
|
||||
case MAX77818_DETAILS_0__BAT_NOT_PRECENT:
|
||||
printf("Battery is NOT precent\n");
|
||||
break;
|
||||
|
||||
default:
|
||||
printf("Unknown battery detection state: 0x%02X\n", regVal);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int max77818_get_wcin_details(struct udevice *dev)
|
||||
{
|
||||
u8 regVal;
|
||||
int ret;
|
||||
|
||||
ret = dm_i2c_read(dev, MAX77818_REG_DETAILS_0, ®Val, 1);
|
||||
if (ret) {
|
||||
printf("Failed to read DETAIL_0 register !\n");
|
||||
return ret;
|
||||
}
|
||||
|
||||
regVal &= MAX77818_DETAILS_0__WCIN_DETAILS_MASK;
|
||||
regVal >>= MAX77818_DETAILS_0__WCIN_DETAILS_SHIFT;
|
||||
|
||||
switch(regVal)
|
||||
{
|
||||
case MAX77818_DETAILS_0__INV_WCIN_BELOW_WCINUVLO:
|
||||
printf("INVALID VWCIN:\nWCIN < VWCIN_UVLO\n");
|
||||
break;
|
||||
|
||||
case MAX77818_DETAILS_0__INV_WCIN_ABOVE_WCINUVLO:
|
||||
printf("INVALID VWCIN: VWCIN < VMBAT + VWCIN2SYS and VWCIN > VWCIN_UVLO\n");
|
||||
break;
|
||||
|
||||
case MAX77818_DETAILS_0__INV_WCIN_ABOVE_WCINOVLO:
|
||||
printf("INVALID VWCIN:\nVWCIN is invalid. VWCIN>VWCIN_OVLO\n");
|
||||
break;
|
||||
|
||||
case MAX77818_DETAILS_0__OK_WCIN_BELOW_WCINOVLO:
|
||||
printf("VWCIN OK:\nVWCIN > VWCIN_UVLO, VWCIN > VMBAT + VWCIN2SYS, VWCIN < VWCIN_OVLO\n");
|
||||
break;
|
||||
|
||||
default:
|
||||
printf("Unknown winc status: 0x%02X\n");
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int max77818_get_chgin_details(struct udevice *dev)
|
||||
{
|
||||
u8 regVal;
|
||||
int ret;
|
||||
|
||||
ret = dm_i2c_read(dev, MAX77818_REG_DETAILS_0, ®Val, 1);
|
||||
if (ret) {
|
||||
printf("Failed to read DETAIL_0 register !\n");
|
||||
return ret;
|
||||
}
|
||||
|
||||
printf("Read regValue: 0x%02X\n", regVal);
|
||||
regVal &= (u8)MAX77818_DETAILS_0__CHGIN_DETAILS_MASK;
|
||||
printf("CHING DETAIL VALUE: 0x%02X\n", regVal);
|
||||
|
||||
regVal = regVal >> (u8)MAX77818_DETAILS_0__CHGIN_DETAILS_SHIFT;
|
||||
printf("CHING DETAIL VALUE: 0x%02X\n", regVal);
|
||||
switch(regVal)
|
||||
{
|
||||
case MAX77818_DETAILS_0__INV_CHGIN_BELOW_CHGINUVLO:
|
||||
printf("INVALID VBUS:\nCHGIN < VCHGIN_UVLO\n");
|
||||
break;
|
||||
|
||||
case MAX77818_DETAILS_0__INV_CHGIN_ABOVE_CHGINUVLO:
|
||||
printf("INVALID VBUS: VCHGIN < VMBAT + VCHGIN2SYS and VCHGIN > VCHGIN_UVLO");
|
||||
break;
|
||||
|
||||
case MAX77818_DETAILS_0__INV_CHGIN_ABOVE_CHGINOVLO:
|
||||
printf("INVALID VBUS:\nVCHGIN is invalid. VCHGIN>VCHGIN_OVLO\n");
|
||||
break;
|
||||
|
||||
case MAX77818_DETAILS_0__OK_CHGIN_BELOW_CHGINOVLO:
|
||||
printf("VBUS OK:\nVCHGIN > VCHGIN_UVLO, VCHGIN > VMBAT + VCHGIN2SYS, VCHGIN < VCHGIN_OVLO\n");
|
||||
break;
|
||||
|
||||
default:
|
||||
printf("Unknown winc status: 0x%02X\n");
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int max77818_set_reg_lock(struct udevice *dev, bool locked)
|
||||
{
|
||||
u8 regVal;
|
||||
|
||||
regVal = (locked ? MAX77818_CHGPROT__LOCK : MAX77818_CHGPROT__UNLOCK);
|
||||
return max77818_i2c_reg_write(dev, MAX77818_REG_CHGPROT, MAX77818_CHGPROT__MASK, regVal);
|
||||
}
|
||||
|
||||
int max77818_set_otg_pwr(struct udevice *dev, bool otg_on)
|
||||
{
|
||||
u8 regVal;
|
||||
|
||||
dev = (dev ? dev : chDev);
|
||||
if (!dev)
|
||||
return -1;
|
||||
|
||||
regVal = (otg_on ? MAX77818_CHG_CNFG_0__MODE__OTG_BOOST_BUCK_ON : MAX77818_CHG_CNFG_0__MODE__CHARGER_BUCK_O);
|
||||
return max77818_i2c_reg_write(dev, MAX77818_REG_CHG_CNFG_0, MAX77818_CHG_CNFG_0__MODE__MASK, regVal);
|
||||
}
|
||||
|
||||
int max77818_set_fast_charge_current_2800_ma(struct udevice *dev)
|
||||
{
|
||||
int ret;
|
||||
|
||||
dev = (dev ? dev : chDev);
|
||||
if (!dev)
|
||||
return -1;
|
||||
|
||||
ret = max77818_set_reg_lock(dev, false);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
ret = max77818_i2c_reg_write(dev, MAX77818_REG_CHG_CNFG_02, MAX77818_CHG_CNFG_02__CHARGE_CC__MASK, MAX77818_CHG_CNFG_02__CHARGE_CC__FAST_CHARGE_2_8MA);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
return max77818_set_reg_lock(dev, true);
|
||||
}
|
||||
|
||||
int max77818_set_charge_termination_voltage(struct udevice *dev)
|
||||
{
|
||||
u8 curVal;
|
||||
int ret;
|
||||
|
||||
dev = (dev ? dev : chDev);
|
||||
if (!dev)
|
||||
return -1;
|
||||
|
||||
ret = max77818_set_reg_lock(dev, false);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
printf("Setting 4.3V CHG_CV_PRM\n");
|
||||
ret = max77818_i2c_reg_write(dev, MAX77818_REG_CHG_CNFG_04, MAX77818_CHG_CNFG_04__CHG_CV_PRM__MASK, MAX77818_CHG_CNFG_04__CHG_CV_PRM__4V3);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
printf("Setting 3.4V VSYS_MIN\n");
|
||||
ret = max77818_i2c_reg_write(dev, MAX77818_REG_CHG_CNFG_04, MAX77818_CHG_CNFG_04__MINVSYS__MASK, MAX77818_CHG_CNFG_04__MINVSYS__3_4V_VSYS_MIN);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
return max77818_set_reg_lock(dev, true);
|
||||
}
|
||||
|
||||
int max77818_set_pogo_input_current_limit(struct udevice *dev)
|
||||
{
|
||||
dev = (dev ? dev : chDev);
|
||||
if (!dev)
|
||||
return -1;
|
||||
|
||||
return max77818_i2c_reg_write(dev, MAX77818_REG_CHG_CNFG_09, MAX77818_CHG_CNFG_09__CHGIN_ILIM__MASK, MAX77818_CHG_CNFG_09__CHGIN_ILIM_2800_M_A_MAX);
|
||||
}
|
||||
|
||||
int max77818_set_usbc_input_current_limit(struct udevice *dev)
|
||||
{
|
||||
dev = (dev ? dev : chDev);
|
||||
if (!dev)
|
||||
return -1;
|
||||
|
||||
return max77818_i2c_reg_write(dev, MAX77818_REG_CHG_CNFG_10, MAX77818_CHG_CNFG_10__WCIN_ILIM__MASK, MAX77818_CHG_CNFG_10__WCIN_ILIM__1260_M_A_MAX);
|
||||
}
|
||||
|
||||
int max77818_init_device()
|
||||
{
|
||||
int ret;
|
||||
|
||||
printf("Trying to find i2c bus %d..\n", MAX77818_I2C_BUS);
|
||||
ret = uclass_get_device_by_seq(UCLASS_I2C, MAX77818_I2C_BUS, &bus);
|
||||
if (ret) {
|
||||
printf("%s: No bus %d\n", __func__, MAX77818_I2C_BUS);
|
||||
return -1;
|
||||
}
|
||||
|
||||
printf("Trying to find ID/GTEST/Safeout LDO device @%d..\n", MAX77818_ID_I2C_ADDR);
|
||||
ret = dm_i2c_probe(bus, MAX77818_ID_I2C_ADDR, 0, &idDev);
|
||||
if (ret) {
|
||||
printf("%s: Can't find device id=0x%x, on bus %d\n",
|
||||
__func__, MAX77818_ID_I2C_ADDR, MAX77818_I2C_BUS);
|
||||
return -1;
|
||||
}
|
||||
printf("OK\n");
|
||||
|
||||
printf("Trying to find charger device @%d..\n", MAX77818_CHARGER_I2C_ADDR);
|
||||
ret = dm_i2c_probe(bus, MAX77818_CHARGER_I2C_ADDR, 0, &chDev);
|
||||
if (ret) {
|
||||
printf("%s: Can't find device id=0x%x, on bus %d\n",
|
||||
__func__, MAX77818_CHARGER_I2C_ADDR, MAX77818_I2C_BUS);
|
||||
return -1;
|
||||
}
|
||||
printf("OK\n");
|
||||
|
||||
printf("Trying to find fuelgauge device @%d..\n", MAX77818_FG_I2C_ADDR);
|
||||
ret = dm_i2c_probe(bus, MAX77818_FG_I2C_ADDR, 0, &fgDev);
|
||||
if (ret) {
|
||||
printf("%s: Can't find device id=0x%x, on bus %d\n",
|
||||
__func__, MAX77818_FG_I2C_ADDR, MAX77818_I2C_BUS);
|
||||
return -1;
|
||||
}
|
||||
printf("OK\n");
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int zs_do_get_battery_charge_status(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
|
||||
{
|
||||
int ret;
|
||||
|
||||
if (!bus || !chDev || !fgDev || !idDev) {
|
||||
ret = max77818_init_device();
|
||||
if(ret != 0)
|
||||
return ret;
|
||||
}
|
||||
|
||||
ret = max77818_get_battery_status(chDev);
|
||||
if (ret) {
|
||||
printf("Failed to get battery detection status: %d\n", ret);
|
||||
return ret;
|
||||
}
|
||||
|
||||
ret = max77818_get_wcin_details(chDev);
|
||||
if (ret) {
|
||||
printf("Failed to get wcin (USB-C) status: %d\n", ret);
|
||||
return ret;
|
||||
}
|
||||
|
||||
ret = max77818_get_chgin_details(chDev);
|
||||
if (ret) {
|
||||
printf("Failed to get chgin (POGO) status: %d\n", ret);
|
||||
return ret;
|
||||
}
|
||||
|
||||
printf("Reading DETAILS_1 status:\n");
|
||||
ret = max77818_get_details_1(chDev);
|
||||
if (ret) {
|
||||
printf("Failed to get DETAILS_1 status: 0x%02X\n", ret);
|
||||
return ret;
|
||||
}
|
||||
|
||||
printf("Reading DETAILS_2 status:\n");
|
||||
ret = max77818_get_details_2(chDev);
|
||||
if (ret) {
|
||||
printf("Failed to get DETAILS_2 status: 0x%02X\n", ret);
|
||||
return ret;
|
||||
}
|
||||
}
|
||||
U_BOOT_CMD(
|
||||
max77818_get_battery_charge_status, 1, 1, zs_do_get_battery_charge_status,
|
||||
"Get battery and charge voltage status",
|
||||
"Read battery detection status, USB-C voltage status and POGO input voltage status"
|
||||
);
|
||||
|
||||
int zs_do_set_otg_pwr(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
|
||||
{
|
||||
int ret;
|
||||
|
||||
if (argc != 2) {
|
||||
printf("Usage: set_otg_power <on | off>\n");
|
||||
return -1;
|
||||
}
|
||||
|
||||
if ((strcmp(argv[1], "on") != 0) && (strcmp(argv[1], "off") != 0)) {
|
||||
printf("Usage: set_otg_power <on | off>\n");
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (!bus || !chDev || !fgDev || !idDev) {
|
||||
ret = max77818_init_device();
|
||||
if(ret != 0)
|
||||
return ret;
|
||||
}
|
||||
|
||||
if (strcmp(argv[1], "on") == 0) {
|
||||
ret = max77818_set_otg_pwr(chDev, true);
|
||||
if (ret) {
|
||||
printf("Failed to turn OTG power on: %d\n", ret);
|
||||
return ret;
|
||||
}
|
||||
}
|
||||
else {
|
||||
ret = max77818_set_otg_pwr(chDev, false);
|
||||
if (ret) {
|
||||
printf("Failed to turn OTG power off: %d\n", ret);
|
||||
return ret;
|
||||
}
|
||||
}
|
||||
}
|
||||
U_BOOT_CMD(
|
||||
max77818_set_otg_pwr, 2, 1, zs_do_set_otg_pwr,
|
||||
"Turn on/off OTG power",
|
||||
"Turn off charging, and enable OTG power output to connected device"
|
||||
);
|
||||
|
||||
int zs_do_set_fastcharge_current_2800_ma(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
|
||||
{
|
||||
int ret;
|
||||
|
||||
if (argc != 1) {
|
||||
printf("Usage: set_fastcharge_current_2800_ma\n");
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (!bus || !chDev || !fgDev || !idDev) {
|
||||
ret = max77818_init_device();
|
||||
if(ret != 0)
|
||||
return ret;
|
||||
}
|
||||
|
||||
ret = max77818_set_fast_charge_current_2800_ma(chDev);
|
||||
if (ret) {
|
||||
printf("Failed to set fast charge current: %d\n", ret);
|
||||
return ret;
|
||||
}
|
||||
}
|
||||
U_BOOT_CMD(
|
||||
max77818_set_fast_charge_current_2800_ma, 1, 1, zs_do_set_fastcharge_current_2800_ma,
|
||||
"Set fastcharge current (2.8A)",
|
||||
"Set fastcharge current to 2800mA (2.8A) for the pogo pin charge input"
|
||||
);
|
||||
|
||||
int zs_do_set_charge_termination_voltage(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
|
||||
{
|
||||
int ret;
|
||||
|
||||
if (argc != 1) {
|
||||
printf("Usage: set_charge_termination_voltage\n");
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (!bus || !chDev || !fgDev || !idDev) {
|
||||
ret = max77818_init_device();
|
||||
if(ret != 0)
|
||||
return ret;
|
||||
}
|
||||
|
||||
ret = max77818_set_charge_termination_voltage(chDev);
|
||||
if (ret) {
|
||||
printf("Failed to set charge termination voltage: %d\n", ret);
|
||||
return ret;
|
||||
}
|
||||
}
|
||||
U_BOOT_CMD(
|
||||
max77818_set_charge_termination_voltage, 1, 1, zs_do_set_charge_termination_voltage,
|
||||
"Set charge termination voltage (3.4V)",
|
||||
"Set charge termination voltage to 3.4V"
|
||||
);
|
||||
|
||||
int zs_do_set_pogo_input_current_limit(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
|
||||
{
|
||||
int ret;
|
||||
|
||||
if (argc != 1) {
|
||||
printf("Usage: set_pogo_input_current_limit\n");
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (!bus || !chDev || !fgDev || !idDev) {
|
||||
ret = max77818_init_device();
|
||||
if(ret != 0)
|
||||
return ret;
|
||||
}
|
||||
|
||||
ret = max77818_set_pogo_input_current_limit(chDev);
|
||||
if (ret) {
|
||||
printf("Failed to set pogo input current limit: %d\n", ret);
|
||||
return ret;
|
||||
}
|
||||
}
|
||||
U_BOOT_CMD(
|
||||
max77818_set_pogo_input_current_limit, 1, 1, zs_do_set_pogo_input_current_limit,
|
||||
"Set max pogo input current (2.8A)",
|
||||
"Set max charge input current limit to 2800mA (2.8A) for the pogo pin charge input"
|
||||
);
|
||||
|
||||
int zs_do_set_usbc_input_current_limit(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
|
||||
{
|
||||
int ret;
|
||||
|
||||
if (argc != 1) {
|
||||
printf("Usage: set_usbc_input_current_limit\n");
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (!bus || !chDev || !fgDev || !idDev) {
|
||||
ret = max77818_init_device();
|
||||
if(ret != 0)
|
||||
return ret;
|
||||
}
|
||||
|
||||
ret = max77818_set_usbc_input_current_limit(chDev);
|
||||
if (ret) {
|
||||
printf("Failed to turn OTG power off: %d\n", ret);
|
||||
return ret;
|
||||
}
|
||||
}
|
||||
U_BOOT_CMD(
|
||||
max77818_set_usbc_input_current_limit, 1, 1, zs_do_set_usbc_input_current_limit,
|
||||
"Set max USB-C input current (1.3A)",
|
||||
"Set max charge input current limit to 1260 (1.3A) for the USB-C charge input"
|
||||
);
|
||||
|
|
@ -0,0 +1,28 @@
|
|||
#ifndef CHARGER_INIT_H
|
||||
#define CHARGER_INIT_H
|
||||
|
||||
#include <command.h>
|
||||
#include <dm/device.h>
|
||||
|
||||
int max77818_init_device(void);
|
||||
|
||||
/* STATUS QUERY */
|
||||
int max77818_get_battery_status(struct udevice *dev);
|
||||
int max77818_get_wcin_details(struct udevice *dev);
|
||||
int max77818_get_chgin_details(struct udevice *dev);
|
||||
|
||||
/* CHARGER CONFIG */
|
||||
int max77818_set_otg_pwr(struct udevice *dev, bool otg_on);
|
||||
int max77818_set_fast_charge_current_2800_ma(struct udevice *dev);
|
||||
int max77818_set_pogo_input_current_limit(struct udevice *dev);
|
||||
int max77818_set_usbc_input_current_limit(struct udevice *dev);
|
||||
int max77818_set_charge_termination_voltage(struct udevice *dev);
|
||||
|
||||
/* CLI COMMAND ROUTINES*/
|
||||
int zs_do_set_otg_pwr(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
|
||||
int zs_do_set_fastcharge_current_2800_ma(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
|
||||
int zs_do_set_charge_termination_voltage(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
|
||||
int zs_do_set_pogo_input_current_limit(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
|
||||
int zs_do_set_usbc_input_current_limit(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
|
||||
|
||||
#endif /* CHARGRE_INIT_H */
|
||||
|
|
@ -13,6 +13,7 @@
|
|||
#include "lcd_init.h"
|
||||
#include "epd_init.h"
|
||||
#include "digitizer_init.h"
|
||||
#include "charger_init.h"
|
||||
|
||||
#include <asm/arch/clock.h>
|
||||
#include <asm/arch/imx-regs.h>
|
||||
|
|
@ -68,6 +69,40 @@ static void power_perfs(void)
|
|||
udelay(500);
|
||||
}
|
||||
|
||||
static int init_charger(void)
|
||||
{
|
||||
int ret;
|
||||
printf("----------------------------------------------\n");
|
||||
printf("Initiating charging parameters\n");
|
||||
ret = max77818_init_device();
|
||||
if (ret != 0)
|
||||
return ret;
|
||||
|
||||
printf("----------------------------------------------\n");
|
||||
printf("Setting fast charge current: 2.8A\n");
|
||||
ret = max77818_set_fast_charge_current_2800_ma(NULL);
|
||||
if (ret != 0)
|
||||
return ret;
|
||||
|
||||
printf("----------------------------------------------\n");
|
||||
printf("Setting pogo input current limit: 2.8A\n");
|
||||
ret = max77818_set_pogo_input_current_limit(NULL);
|
||||
if (ret != 0)
|
||||
return ret;
|
||||
|
||||
printf("----------------------------------------------\n");
|
||||
printf("Setting USB-C input current limit: 1.2A\n");
|
||||
ret = max77818_set_usbc_input_current_limit(NULL);
|
||||
if (ret != 0)
|
||||
return ret;
|
||||
|
||||
printf("----------------------------------------------\n");
|
||||
printf("Setting charge termination voltage: 3.4V\n");
|
||||
ret = max77818_set_charge_termination_voltage(NULL);
|
||||
if (ret != 0)
|
||||
return ret;
|
||||
}
|
||||
|
||||
int board_early_init_f(void)
|
||||
{
|
||||
setup_iomux_uart();
|
||||
|
|
@ -90,6 +125,7 @@ int board_late_init(void)
|
|||
imx_iomux_v3_setup_multiple_pads(wdog_pads, ARRAY_SIZE(wdog_pads));
|
||||
set_wdog_reset(wdog);
|
||||
|
||||
init_charger();
|
||||
power_perfs();
|
||||
|
||||
return 0;
|
||||
|
|
|
|||
Loading…
Reference in New Issue