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board: ge: bx50v3: add the PMIC configuration support 

Change the PMIC bulk configuration from auto mode to sync mode to avoid
voltage dropout issue seen in auto mode.

Signed-off-by: Ken Lin <ken.lin@advantech.com.tw>
Signed-off-by: Akshay Bhat <akshay.bhat@timesys.com>
This commit is contained in:
Ken Lin 2016-11-18 12:20:54 -05:00 committed by Stefano Babic
parent a425bf7281
commit 22d358da0b
1 changed files with 54 additions and 0 deletions
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54
board/ge/bx50v3/bx50v3.c
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@ -596,6 +596,57 @@ static const struct boot_mode board_boot_modes[] = {
};
#endif
void pmic_init(void)
{
#define I2C_PMIC 0x2
#define DA9063_I2C_ADDR 0x58
#define DA9063_REG_BCORE2_CFG 0x9D
#define DA9063_REG_BCORE1_CFG 0x9E
#define DA9063_REG_BPRO_CFG 0x9F
#define DA9063_REG_BIO_CFG 0xA0
#define DA9063_REG_BMEM_CFG 0xA1
#define DA9063_REG_BPERI_CFG 0xA2
#define DA9063_BUCK_MODE_MASK 0xC0
#define DA9063_BUCK_MODE_MANUAL 0x00
#define DA9063_BUCK_MODE_SLEEP 0x40
#define DA9063_BUCK_MODE_SYNC 0x80
#define DA9063_BUCK_MODE_AUTO 0xC0
uchar val;
i2c_set_bus_num(I2C_PMIC);
i2c_read(DA9063_I2C_ADDR, DA9063_REG_BCORE2_CFG, 1, &val, 1);
val &= ~DA9063_BUCK_MODE_MASK;
val |= DA9063_BUCK_MODE_SYNC;
i2c_write(DA9063_I2C_ADDR, DA9063_REG_BCORE2_CFG, 1, &val, 1);
i2c_read(DA9063_I2C_ADDR, DA9063_REG_BCORE1_CFG, 1, &val, 1);
val &= ~DA9063_BUCK_MODE_MASK;
val |= DA9063_BUCK_MODE_SYNC;
i2c_write(DA9063_I2C_ADDR, DA9063_REG_BCORE1_CFG, 1, &val, 1);
i2c_read(DA9063_I2C_ADDR, DA9063_REG_BPRO_CFG, 1, &val, 1);
val &= ~DA9063_BUCK_MODE_MASK;
val |= DA9063_BUCK_MODE_SYNC;
i2c_write(DA9063_I2C_ADDR, DA9063_REG_BPRO_CFG, 1, &val, 1);
i2c_read(DA9063_I2C_ADDR, DA9063_REG_BIO_CFG, 1, &val, 1);
val &= ~DA9063_BUCK_MODE_MASK;
val |= DA9063_BUCK_MODE_SYNC;
i2c_write(DA9063_I2C_ADDR, DA9063_REG_BIO_CFG, 1, &val, 1);
i2c_read(DA9063_I2C_ADDR, DA9063_REG_BMEM_CFG, 1, &val, 1);
val &= ~DA9063_BUCK_MODE_MASK;
val |= DA9063_BUCK_MODE_SYNC;
i2c_write(DA9063_I2C_ADDR, DA9063_REG_BMEM_CFG, 1, &val, 1);
i2c_read(DA9063_I2C_ADDR, DA9063_REG_BPERI_CFG, 1, &val, 1);
val &= ~DA9063_BUCK_MODE_MASK;
val |= DA9063_BUCK_MODE_SYNC;
i2c_write(DA9063_I2C_ADDR, DA9063_REG_BPERI_CFG, 1, &val, 1);
}
int board_late_init(void)
{
#ifdef CONFIG_CMD_BMODE
@ -619,6 +670,9 @@ int board_late_init(void)
pwm_enable(0);
#endif
/* board specific pmic init */
pmic_init();
return 0;
}