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mmc: omap_hsmmc: Update pbias programming

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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>
This commit is contained in:
Balaji T K 2013-06-06 05:04:32 +00:00 • committed by Tom Rini
parent 81ede187c3
commit a5d439c2d3
4 changed files with 14 additions and 17 deletions
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2
arch/arm/include/asm/arch-omap5/omap.h
View file

@ -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__

20
drivers/mmc/omap_hsmmc.c
View file

@ -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

4
include/configs/omap5_common.h
View file

@ -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

5
include/configs/omap5_uevm.h
View file

@ -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) */