diff options
| -rw-r--r-- | arch/arm/include/asm/arch-omap5/omap.h | 7 | ||||
| -rw-r--r-- | drivers/mmc/omap_hsmmc.c | 33 | ||||
| -rw-r--r-- | drivers/power/twl6035.c | 25 | ||||
| -rw-r--r-- | include/twl6035.h | 1 |
4 files changed, 63 insertions, 3 deletions
diff --git a/arch/arm/include/asm/arch-omap5/omap.h b/arch/arm/include/asm/arch-omap5/omap.h index 272539296..d672b6f9d 100644 --- a/arch/arm/include/asm/arch-omap5/omap.h +++ b/arch/arm/include/asm/arch-omap5/omap.h @@ -125,9 +125,10 @@ /* CONTROL_EFUSE_2 */ #define CONTROL_EFUSE_2_NMOS_PMOS_PTV_CODE_1 0x00ffc000 -#define MMC1_PWRDNZ (1 << 26) -#define MMC1_PBIASLITE_PWRDNZ (1 << 22) -#define MMC1_PBIASLITE_VMODE (1 << 21) +#define SDCARD_PWRDNZ (1 << 26) +#define SDCARD_BIAS_HIZ_MODE (1 << 25) +#define SDCARD_BIAS_PWRDNZ (1 << 22) +#define SDCARD_PBIASLITE_VMODE (1 << 21) #ifndef __ASSEMBLY__ diff --git a/drivers/mmc/omap_hsmmc.c b/drivers/mmc/omap_hsmmc.c index f421ff9ee..e3670d4ad 100644 --- a/drivers/mmc/omap_hsmmc.c +++ b/drivers/mmc/omap_hsmmc.c @@ -29,6 +29,7 @@ #include <i2c.h> #include <twl4030.h> #include <twl6030.h> +#include <twl6035.h> #include <asm/io.h> #include <asm/arch/mmc_host_def.h> #include <asm/arch/sys_proto.h> @@ -60,6 +61,34 @@ static void omap4_vmmc_pbias_config(struct mmc *mmc) } #endif +#if defined(CONFIG_OMAP54XX) && defined(CONFIG_TWL6035_POWER) +static void omap5_pbias_config(struct mmc *mmc) +{ + u32 value = 0; + struct omap_sys_ctrl_regs *const ctrl = + (struct omap_sys_ctrl_regs *) SYSCTRL_GENERAL_CORE_BASE; + + value = readl(&ctrl->control_pbias); + value &= ~(SDCARD_PWRDNZ | SDCARD_BIAS_PWRDNZ); + value |= SDCARD_BIAS_HIZ_MODE; + writel(value, &ctrl->control_pbias); + + twl6035_mmc1_poweron_ldo(); + + value = readl(&ctrl->control_pbias); + value &= ~SDCARD_BIAS_HIZ_MODE; + value |= SDCARD_PBIASLITE_VMODE | SDCARD_PWRDNZ | SDCARD_BIAS_PWRDNZ; + writel(value, &ctrl->control_pbias); + + value = readl(&ctrl->control_pbias); + if (value & (1 << 23)) { + value &= ~(SDCARD_PWRDNZ | SDCARD_BIAS_PWRDNZ); + value |= SDCARD_BIAS_HIZ_MODE; + writel(value, &ctrl->control_pbias); + } +} +#endif + unsigned char mmc_board_init(struct mmc *mmc) { #if defined(CONFIG_TWL4030_POWER) @@ -99,6 +128,10 @@ unsigned char mmc_board_init(struct mmc *mmc) if (mmc->block_dev.dev == 0) omap4_vmmc_pbias_config(mmc); #endif +#if defined(CONFIG_OMAP54XX) && defined(CONFIG_TWL6035_POWER) + if (mmc->block_dev.dev == 0) + omap5_pbias_config(mmc); +#endif return 0; } diff --git a/drivers/power/twl6035.c b/drivers/power/twl6035.c index d75212c96..624c09e85 100644 --- a/drivers/power/twl6035.c +++ b/drivers/power/twl6035.c @@ -34,7 +34,32 @@ int twl6035_i2c_read_u8(u8 chip_no, u8 *val, u8 reg) return i2c_read(chip_no, reg, 1, val, 1); } +/* To align with i2c mw/mr address, reg, val command syntax */ +static inline int palmas_write_u8(u8 chip_no, u8 reg, u8 val) +{ + return i2c_write(chip_no, reg, 1, &val, 1); +} + +static inline int palmas_read_u8(u8 chip_no, u8 reg, u8 *val) +{ + return i2c_read(chip_no, reg, 1, val, 1); +} + void twl6035_init_settings(void) { return; } + +void twl6035_mmc1_poweron_ldo(void) +{ + u8 val = 0; + + /* set LDO9 TWL6035 to 3V */ + val = 0x2b; /* (3 -.9)*28 +1 */ + palmas_write_u8(0x48, LDO9_VOLTAGE, val); + + /* TURN ON LDO9 */ + val = LDO_ON | LDO_MODE_SLEEP | LDO_MODE_ACTIVE; + palmas_write_u8(0x48, LDO9_CTRL, val); + return; +} diff --git a/include/twl6035.h b/include/twl6035.h index 1e133175d..e21ddbaf2 100644 --- a/include/twl6035.h +++ b/include/twl6035.h @@ -39,3 +39,4 @@ int twl6035_i2c_write_u8(u8 chip_no, u8 val, u8 reg); int twl6035_i2c_read_u8(u8 chip_no, u8 *val, u8 reg); void twl6035_init_settings(void); +void twl6035_mmc1_poweron_ldo(void); |