From: Balaji T K balajitk@ti.com
Update pbias programming sequence for OMAP5 ES2.0/DRA7
Signed-off-by: Balaji T K balajitk@ti.com Signed-off-by: Lokesh Vutla lokeshvutla@ti.com --- Changes since V4: * Rebased on top of http://patchwork.ozlabs.org/patch/249430/
arch/arm/include/asm/arch-omap5/omap.h | 2 +- drivers/mmc/omap_hsmmc.c | 20 +++++++++----------- include/configs/omap5_common.h | 4 ++++ include/configs/omap5_uevm.h | 5 ----- 4 files changed, 14 insertions(+), 17 deletions(-)
diff --git a/arch/arm/include/asm/arch-omap5/omap.h b/arch/arm/include/asm/arch-omap5/omap.h index 9010666..abf6837 100644 --- a/arch/arm/include/asm/arch-omap5/omap.h +++ b/arch/arm/include/asm/arch-omap5/omap.h @@ -106,9 +106,9 @@ /* CONTROL_EFUSE_2 */ #define CONTROL_EFUSE_2_NMOS_PMOS_PTV_CODE_1 0x00ffc000
+#define SDCARD_BIAS_PWRDNZ (1 << 27) #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 afdfa88..975b2c5 100644 --- a/drivers/mmc/omap_hsmmc.c +++ b/drivers/mmc/omap_hsmmc.c @@ -113,23 +113,21 @@ static void omap5_pbias_config(struct mmc *mmc) u32 value = 0;
value = readl((*ctrl)->control_pbias); - value &= ~(SDCARD_PWRDNZ | SDCARD_BIAS_PWRDNZ); - value |= SDCARD_BIAS_HIZ_MODE; + value &= ~SDCARD_PWRDNZ; + writel(value, (*ctrl)->control_pbias); + udelay(10); /* wait 10 us */ + value &= ~SDCARD_BIAS_PWRDNZ; writel(value, (*ctrl)->control_pbias);
palmas_mmc1_poweron_ldo();
value = readl((*ctrl)->control_pbias); - value &= ~SDCARD_BIAS_HIZ_MODE; - value |= SDCARD_PBIASLITE_VMODE | SDCARD_PWRDNZ | SDCARD_BIAS_PWRDNZ; + value |= 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); - } + udelay(150); /* wait 150 us */ + value |= SDCARD_PWRDNZ; + writel(value, (*ctrl)->control_pbias); + udelay(150); /* wait 150 us */ } #endif
diff --git a/include/configs/omap5_common.h b/include/configs/omap5_common.h index 83b91d1..ddf2ad4 100644 --- a/include/configs/omap5_common.h +++ b/include/configs/omap5_common.h @@ -238,6 +238,10 @@ #define CONFIG_SYS_DEFAULT_LPDDR2_TIMINGS #endif
+#ifndef CONFIG_SPL_BUILD +#define CONFIG_PALMAS_POWER +#endif + /* Defines for SPL */ #define CONFIG_SPL #define CONFIG_SPL_FRAMEWORK diff --git a/include/configs/omap5_uevm.h b/include/configs/omap5_uevm.h index ba81e30..f4a2d31 100644 --- a/include/configs/omap5_uevm.h +++ b/include/configs/omap5_uevm.h @@ -39,11 +39,6 @@ #define CONFIG_SYS_NS16550_COM3 UART3_BASE #define CONFIG_BAUDRATE 115200
-/* TWL6035 */ -#ifndef CONFIG_SPL_BUILD -#define CONFIG_PALMAS_POWER -#endif - /* MMC ENV related defines */ #define CONFIG_ENV_IS_IN_MMC #define CONFIG_SYS_MMC_ENV_DEV 1 /* SLOT2: eMMC(1) */