[U-Boot] [PATCH 11/16] arm:trats:pmic: Default PMIC(MAX8997) initialization for Samsung's TRATS board

Lukasz Majewski
2012-09-14T15:40:10Z

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>
---
board/samsung/trats/trats.c | 150 ++++++++++++++++++++++++++++++++++++++++++
include/power/max8997_pmic.h | 9 +++
2 files changed, 159 insertions(+), 0 deletions(-)

diff --git a/board/samsung/trats/trats.c b/board/samsung/trats/trats.c
index 0285668..bb83b94 100644
--- a/board/samsung/trats/trats.c
+++ b/board/samsung/trats/trats.c
@@ -86,6 +86,155 @@ 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;
+}
+
#ifdef CONFIG_POWER_INIT
int power_board_init(void)
{
@@ -93,6 +242,7 @@ int power_board_init(void)
#ifdef CONFIG_PMIC
pmic_init(I2C_5);
#endif
+ pmic_init_max8997();
return 0;
}
#endif
diff --git a/include/power/max8997_pmic.h b/include/power/max8997_pmic.h
index af48a49..b7edee4 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)
--
1.7.2.3