This patch adds required pmic voltage settings for SMDK5250.
Signed-off-by: Rajeshwari Shinde rajeshwari.s@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_ */