[U-Boot] [PATCH 3/4] SMDK5250: Add PMIC voltage settings

[Rajeshwari Shinde]

This patch adds required pmic voltage settings for SMDK5250.

Signed-off-by: Rajeshwari Shinde <rajeshwari.s at samsung.com>
---
 board/samsung/smdk5250/smdk5250.c |   68 +++++++++++++++++++++++++++++++++++-
 include/power/max77686_pmic.h     |   15 ++++++++
 2 files changed, 81 insertions(+), 2 deletions(-)

diff --git a/board/samsung/smdk5250/smdk5250.c b/board/samsung/smdk5250/smdk5250.c
index 73c3ec0..fe353a1 100644
--- a/board/samsung/smdk5250/smdk5250.c
+++ b/board/samsung/smdk5250/smdk5250.c
@@ -24,14 +24,17 @@
 #include <fdtdec.h>
 #include <asm/io.h>
 #include <i2c.h>
+#include <errno.h>
 #include <netdev.h>
 #include <spi.h>
 #include <asm/arch/cpu.h>
 #include <asm/arch/gpio.h>
 #include <asm/arch/mmc.h>
 #include <asm/arch/pinmux.h>
+#include <asm/arch/power.h>
 #include <asm/arch/sromc.h>
 #include <power/pmic.h>
+#include <power/max77686_pmic.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -60,10 +63,71 @@ int dram_init(void)
 #if defined(CONFIG_POWER)
 int power_init_board(void)
 {
+	struct pmic *p;
+	u32 val;
+
+	ps_hold_setup();
+
+	i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
+
 	if (pmic_init(I2C_PMIC))
 		return -1;
-	else
-		return 0;
+
+	p = pmic_get("MAX77686_PMIC");
+	if (!p)
+		return -ENODEV;
+
+	if (pmic_probe(p))
+		return -1;
+
+	pmic_reg_read(p, MAX77686_REG_PMIC_32KHZ, &val);
+	val |= MAX77686_32KHCP_EN;
+	pmic_reg_write(p, MAX77686_REG_PMIC_32KHZ, val);
+
+	pmic_reg_read(p, MAX77686_REG_PMIC_BBAT, &val);
+	val |= (MAX77686_BBCHOSTEN | MAX77686_BBCVS_3_5V);
+	pmic_reg_write(p, MAX77686_REG_PMIC_BBAT, val);
+
+	pmic_reg_write(p, MAX77686_REG_PMIC_BUCK1OUT, MAX77686_BUCK1OUT_1V);
+	pmic_reg_read(p, MAX77686_REG_PMIC_BUCK1CRTL, &val);
+	val |= MAX77686_BUCK1CTRL_EN;
+	pmic_reg_write(p, MAX77686_REG_PMIC_BUCK1CRTL, val);
+
+	pmic_reg_write(p, MAX77686_REG_PMIC_BUCK2DVS1,
+					MAX77686_BUCK2DVS1_1_3V);
+	pmic_reg_read(p, MAX77686_REG_PMIC_BUCK2CTRL1, &val);
+	val |= MAX77686_BUCK2CTRL_ON;
+	pmic_reg_write(p, MAX77686_REG_PMIC_BUCK2CTRL1,  val);
+
+	pmic_reg_write(p, MAX77686_REG_PMIC_BUCK3DVS1,
+					MAX77686_BUCK3DVS1_1_0125V);
+	pmic_reg_read(p, MAX77686_REG_PMIC_BUCK3CTRL, &val);
+	val |= MAX77686_BUCK3CTRL_ON;
+	pmic_reg_write(p, MAX77686_REG_PMIC_BUCK3CTRL, val);
+
+	pmic_reg_write(p, MAX77686_REG_PMIC_BUCK4DVS1,
+					MAX77686_BUCK4DVS1_1_2V);
+	pmic_reg_read(p, MAX77686_REG_PMIC_BUCK4CTRL1, &val);
+	val |= MAX77686_BUCK4CTRL_ON;
+	pmic_reg_write(p, MAX77686_REG_PMIC_BUCK4CTRL1, val);
+
+	pmic_reg_read(p, MAX77686_REG_PMIC_LDO2CTRL1, &val);
+	val |= (MAX77686_LD02CTRL1_1_5V | EN_LDO);
+	pmic_reg_write(p, MAX77686_REG_PMIC_LDO2CTRL1, val);
+
+	pmic_reg_read(p, MAX77686_REG_PMIC_LDO3CTRL1, &val);
+	val |= (MAX77686_LD03CTRL1_1_8V | EN_LDO);
+	pmic_reg_write(p, MAX77686_REG_PMIC_LDO3CTRL1, val);
+
+	pmic_reg_read(p, MAX77686_REG_PMIC_LDO5CTRL1, &val);
+	val |= (MAX77686_LD05CTRL1_1_8V | EN_LDO);
+	pmic_reg_write(p, MAX77686_REG_PMIC_LDO5CTRL1, val);
+
+	pmic_reg_read(p, MAX77686_REG_PMIC_LDO10CTRL1, &val);
+	val |= (MAX77686_LD10CTRL1_1_8V | EN_LDO);
+	pmic_reg_write(p, MAX77686_REG_PMIC_LDO10CTRL1, val);
+
+	return 0;
 }
 #endif
 
diff --git a/include/power/max77686_pmic.h b/include/power/max77686_pmic.h
index d949ace..fb3a8fb 100644
--- a/include/power/max77686_pmic.h
+++ b/include/power/max77686_pmic.h
@@ -155,4 +155,19 @@ enum {
 	EN_LDO = (0x3 << 6),
 };
 
+#define MAX77686_BUCK1OUT_1V	0x5
+#define MAX77686_BUCK1CTRL_EN	(3<<0)
+#define MAX77686_BUCK2DVS1_1_3V	0x38
+#define MAX77686_BUCK2CTRL_ON	(1<<4)
+#define MAX77686_BUCK3DVS1_1_0125V	0x21
+#define MAX77686_BUCK3CTRL_ON	(1<<4)
+#define MAX77686_BUCK4DVS1_1_2V	0x30
+#define MAX77686_BUCK4CTRL_ON	(1<<4)
+#define MAX77686_LD02CTRL1_1_5V	0x1c
+#define MAX77686_LD03CTRL1_1_8V	0x14
+#define MAX77686_LD05CTRL1_1_8V	0x14
+#define MAX77686_LD10CTRL1_1_8V	0x14
+#define MAX77686_32KHCP_EN	(1<<1)
+#define MAX77686_BBCHOSTEN	(1<<0)
+#define MAX77686_BBCVS_3_5V	(3<<3)
 #endif /* __MAX77686_PMIC_H_ */
-- 
1.7.4.4