Patchwork [U-Boot,v3,14/24] arm:trats:pmic: Default PMIC(MAX8997) initialization for Samsung's TRATS board

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Submitter Łukasz Majewski
Date Oct. 19, 2012, 3:44 p.m.
Message ID <1350661451-1273-15-git-send-email-l.majewski@samsung.com>
Download mbox | patch
Permalink /patch/192755/
State Superseded
Delegated to: Tom Rini
Headers show

Comments

Łukasz Majewski - Oct. 19, 2012, 3:44 p.m.
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
---
 board/samsung/trats/trats.c  |  150 ++++++++++++++++++++++++++++++++++++++++++
 include/power/max8997_pmic.h |    9 +++
 2 files changed, 159 insertions(+), 0 deletions(-)

Patch

diff --git a/board/samsung/trats/trats.c b/board/samsung/trats/trats.c
index de14f0d..7b6f6dc 100644
--- a/board/samsung/trats/trats.c
+++ b/board/samsung/trats/trats.c
@@ -86,10 +86,160 @@  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)
 {
 	pmic_init(I2C_5);
 
+	pmic_init_max8997();
 	return 0;
 }
 
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)