Default PMIC (MAX8997) initialization for Samsung's TRATS development board.
Signed-off-by: Lukasz Majewski l.majewski@samsung.com Signed-off-by: Kyungmin Park kyungmin.park@samsung.com Cc: Minkyu Kang mk7.kang@samsung.com
--- Changes for v2: - None Changes for v3: - None Changes for v4: - None Changes for v5: - None Changes for v6: - None Changes for v7: - Check return value from pmic_init_max8997() function --- board/samsung/trats/trats.c | 151 ++++++++++++++++++++++++++++++++++++++++++ include/power/max8997_pmic.h | 9 +++ 2 files changed, 160 insertions(+), 0 deletions(-)
diff --git a/board/samsung/trats/trats.c b/board/samsung/trats/trats.c index 1fa10ef..ebbc7ab 100644 --- a/board/samsung/trats/trats.c +++ b/board/samsung/trats/trats.c @@ -86,11 +86,162 @@ void i2c_init_board(void) s5p_gpio_direction_output(&gpio2->y4, 1, 1); }
+static int pmic_init_max8997(void) +{ + struct pmic *p = pmic_get("MAX8997_PMIC"); + int i = 0, ret = 0; + u32 val; + + if (pmic_probe(p)) + return -1; + + /* BUCK1 VARM: 1.2V */ + val = (1200000 - 650000) / 25000; + ret |= pmic_reg_write(p, MAX8997_REG_BUCK1DVS1, val); + val = ENBUCK | ACTIVE_DISCHARGE; /* DVS OFF */ + ret |= pmic_reg_write(p, MAX8997_REG_BUCK1CTRL, val); + + /* BUCK2 VINT: 1.1V */ + val = (1100000 - 650000) / 25000; + ret |= pmic_reg_write(p, MAX8997_REG_BUCK2DVS1, val); + val = ENBUCK | ACTIVE_DISCHARGE; /* DVS OFF */ + ret |= pmic_reg_write(p, MAX8997_REG_BUCK2CTRL, val); + + + /* BUCK3 G3D: 1.1V - OFF */ + ret |= pmic_reg_read(p, MAX8997_REG_BUCK3CTRL, &val); + val &= ~ENBUCK; + ret |= pmic_reg_write(p, MAX8997_REG_BUCK3CTRL, val); + + val = (1100000 - 750000) / 50000; + ret |= pmic_reg_write(p, MAX8997_REG_BUCK3DVS, val); + + /* BUCK4 CAMISP: 1.2V - OFF */ + ret |= pmic_reg_read(p, MAX8997_REG_BUCK4CTRL, &val); + val &= ~ENBUCK; + ret |= pmic_reg_write(p, MAX8997_REG_BUCK4CTRL, val); + + val = (1200000 - 650000) / 25000; + ret |= pmic_reg_write(p, MAX8997_REG_BUCK4DVS, val); + + /* BUCK5 VMEM: 1.2V */ + val = (1200000 - 650000) / 25000; + for (i = 0; i < 8; i++) + ret |= pmic_reg_write(p, MAX8997_REG_BUCK5DVS1 + i, val); + + val = ENBUCK | ACTIVE_DISCHARGE; /* DVS OFF */ + ret |= pmic_reg_write(p, MAX8997_REG_BUCK5CTRL, val); + + /* BUCK6 CAM AF: 2.8V */ + /* No Voltage Setting Register */ + /* GNSLCT 3.0X */ + val = GNSLCT; + ret |= pmic_reg_write(p, MAX8997_REG_BUCK6CTRL, val); + + /* BUCK7 VCC_SUB: 2.0V */ + val = (2000000 - 750000) / 50000; + ret |= pmic_reg_write(p, MAX8997_REG_BUCK7DVS, val); + + /* LDO1 VADC: 3.3V */ + val = max8997_reg_ldo(3300000) | DIS_LDO; /* OFF */ + ret |= pmic_reg_write(p, MAX8997_REG_LDO1CTRL, val); + + /* LDO1 Disable active discharging */ + ret |= pmic_reg_read(p, MAX8997_REG_LDO1CONFIG, &val); + val &= ~LDO_ADE; + ret |= pmic_reg_write(p, MAX8997_REG_LDO1CONFIG, val); + + /* LDO2 VALIVE: 1.1V */ + val = max8997_reg_ldo(1100000) | EN_LDO; + ret |= pmic_reg_write(p, MAX8997_REG_LDO2CTRL, val); + + /* LDO3 VUSB/MIPI: 1.1V */ + val = max8997_reg_ldo(1100000) | DIS_LDO; /* OFF */ + ret |= pmic_reg_write(p, MAX8997_REG_LDO3CTRL, val); + + /* LDO4 VMIPI: 1.8V */ + val = max8997_reg_ldo(1800000) | DIS_LDO; /* OFF */ + ret |= pmic_reg_write(p, MAX8997_REG_LDO4CTRL, val); + + /* LDO5 VHSIC: 1.2V */ + val = max8997_reg_ldo(1200000) | DIS_LDO; /* OFF */ + ret |= pmic_reg_write(p, MAX8997_REG_LDO5CTRL, val); + + /* LDO6 VCC_1.8V_PDA: 1.8V */ + val = max8997_reg_ldo(1800000) | EN_LDO; + ret |= pmic_reg_write(p, MAX8997_REG_LDO6CTRL, val); + + /* LDO7 CAM_ISP: 1.8V */ + val = max8997_reg_ldo(1800000) | DIS_LDO; /* OFF */ + ret |= pmic_reg_write(p, MAX8997_REG_LDO7CTRL, val); + + /* LDO8 VDAC/VUSB: 3.3V */ + val = max8997_reg_ldo(3300000) | DIS_LDO; /* OFF */ + ret |= pmic_reg_write(p, MAX8997_REG_LDO8CTRL, val); + + /* LDO9 VCC_2.8V_PDA: 2.8V */ + val = max8997_reg_ldo(2800000) | EN_LDO; + ret |= pmic_reg_write(p, MAX8997_REG_LDO9CTRL, val); + + /* LDO10 VPLL: 1.1V */ + val = max8997_reg_ldo(1100000) | EN_LDO; + ret |= pmic_reg_write(p, MAX8997_REG_LDO10CTRL, val); + + /* LDO11 TOUCH: 2.8V */ + val = max8997_reg_ldo(2800000) | DIS_LDO; /* OFF */ + ret |= pmic_reg_write(p, MAX8997_REG_LDO11CTRL, val); + + /* LDO12 VTCAM: 1.8V */ + val = max8997_reg_ldo(1800000) | DIS_LDO; /* OFF */ + ret |= pmic_reg_write(p, MAX8997_REG_LDO12CTRL, val); + + /* LDO13 VCC_3.0_LCD: 3.0V */ + val = max8997_reg_ldo(3000000) | DIS_LDO; /* OFF */ + ret |= pmic_reg_write(p, MAX8997_REG_LDO13CTRL, val); + + /* LDO14 MOTOR: 3.0V */ + val = max8997_reg_ldo(3000000) | DIS_LDO; /* OFF */ + ret |= pmic_reg_write(p, MAX8997_REG_LDO14CTRL, val); + + /* LDO15 LED_A: 2.8V */ + val = max8997_reg_ldo(2800000) | DIS_LDO; /* OFF */ + ret |= pmic_reg_write(p, MAX8997_REG_LDO15CTRL, val); + + /* LDO16 CAM_SENSOR: 1.8V */ + val = max8997_reg_ldo(1800000) | DIS_LDO; /* OFF */ + ret |= pmic_reg_write(p, MAX8997_REG_LDO16CTRL, val); + + /* LDO17 VTF: 2.8V */ + val = max8997_reg_ldo(2800000) | DIS_LDO; /* OFF */ + ret |= pmic_reg_write(p, MAX8997_REG_LDO17CTRL, val); + + /* LDO18 TOUCH_LED 3.3V */ + val = max8997_reg_ldo(3300000) | DIS_LDO; /* OFF */ + ret |= pmic_reg_write(p, MAX8997_REG_LDO18CTRL, val); + + /* LDO21 VDDQ: 1.2V */ + val = max8997_reg_ldo(1200000) | EN_LDO; + ret |= pmic_reg_write(p, MAX8997_REG_LDO21CTRL, val); + + /* SAFEOUT for both 1 and 2: 4.9V, Active discharge, Enable */ + val = (SAFEOUT_4_90V << 0) | (SAFEOUT_4_90V << 2) | + ACTDISSAFEO1 | ACTDISSAFEO2 | ENSAFEOUT1 | ENSAFEOUT2; + ret |= pmic_reg_write(p, MAX8997_REG_SAFEOUTCTRL, val); + + if (ret) { + puts("MAX8997 PMIC setting error!\n"); + return -1; + } + return 0; +} + int power_init_board(void) { int ret;
ret = pmic_init(I2C_5); + ret |= pmic_init_max8997(); + if (ret) return ret;
diff --git a/include/power/max8997_pmic.h b/include/power/max8997_pmic.h index 03cac04..5d2d94d 100644 --- a/include/power/max8997_pmic.h +++ b/include/power/max8997_pmic.h @@ -176,6 +176,15 @@ enum { #define ENSAFEOUT1 (1 << 6) #define ENSAFEOUT2 (1 << 7)
+#define ENBUCK (1 << 0) +#define ACTIVE_DISCHARGE (1 << 3) +#define GNSLCT (1 << 2) +#define LDO_ADE (1 << 1) +#define SAFEOUT_4_85V 0x00 +#define SAFEOUT_4_90V 0x01 +#define SAFEOUT_4_95V 0x02 +#define SAFEOUT_3_30V 0x03 + /* Charger */ enum {CHARGER_ENABLE, CHARGER_DISABLE}; #define DETBAT (1 << 2)