From: Balaji T K <balaj...@ti.com>
add dra mmc pbias support and ldo1 power on
Signed-off-by: Balaji T K <balaj...@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvu...@ti.com>
---
Changes since V3:
* Addressed comments from Tom
arch/arm/include/asm/arch-omap5/omap.h | 2 +-
drivers/mmc/omap_hsmmc.c | 26 +++++++++++-----------
drivers/power/palmas.c | 37 ++++++++++++++++++++++++++------
include/configs/omap5_common.h | 4 ++++
include/configs/omap5_uevm.h | 5 -----
include/palmas.h | 12 +++++++++--
6 files changed, 59 insertions(+), 27 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..3d3281e 100644
--- a/drivers/mmc/omap_hsmmc.c
+++ b/drivers/mmc/omap_hsmmc.c
@@ -113,23 +113,25 @@ 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();
+#if defined(CONFIG_DRA7XX)
+ tps659038_mmc1_poweron_ldo1();
+#else
+ palmas_mmc1_poweron_ldo9();
+#endif
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/drivers/power/palmas.c b/drivers/power/palmas.c
index 09c832d..71c4bdc 100644
--- a/drivers/power/palmas.c
+++ b/drivers/power/palmas.c
@@ -28,23 +28,46 @@ void palmas_init_settings(void)
return;
}
-int palmas_mmc1_poweron_ldo(void)
+int palmas_mmc1_poweron_ldo9(void)
{
u8 val = 0;
/* set LDO9 TWL6035 to 3V */
- val = 0x2b; /* (3 -.9)*28 +1 */
+ val = LDO_VOLT_3V0;
- if (palmas_i2c_write_u8(0x48, LDO9_VOLTAGE, val)) {
- printf("twl6035: could not set LDO9 voltage.\n");
+ if (palmas_i2c_write_u8(TWL603X_CHIP_P1, LDO9_VOLTAGE, val)) {
+ printf("twl603x: could not set LDO9 voltage.\n");
return 1;
}
/* TURN ON LDO9 */
- val = LDO_ON | LDO_MODE_SLEEP | LDO_MODE_ACTIVE;
+ val = LDO_MODE_SLEEP | LDO_MODE_ACTIVE;
- if (palmas_i2c_write_u8(0x48, LDO9_CTRL, val)) {
- printf("twl6035: could not turn on LDO9.\n");
+ if (palmas_i2c_write_u8(TWL603X_CHIP_P1, LDO9_CTRL, val)) {
+ printf("twl603x: could not turn on LDO9.\n");
+ return 1;
+ }
+
+ return 0;
+}
+
+int tps659038_mmc1_poweron_ldo1(void)
+{
+ u8 val = 0;
+
+ /* set LDO1 to 3V */
+ val = LDO_VOLT_3V0;
+
+ if (palmas_i2c_write_u8(TPS659038_CHIP_P1, LDO1_VOLTAGE, val)) {
+ printf("tps659038: could not set LDO1 voltage\n");
+ return 1;
+ }
+
+ /* TURN ON LDO1 */
+ val = LDO_MODE_SLEEP | LDO_MODE_ACTIVE;
+
+ if (palmas_i2c_write_u8(TPS659038_CHIP_P1, LDO1_CTRL, val)) {
+ printf("tps659038: could not turn on LDO1\n");
return 1;
}
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) */
diff --git a/include/palmas.h b/include/palmas.h
index 3b18589..0361705 100644
--- a/include/palmas.h
+++ b/include/palmas.h
@@ -27,7 +27,12 @@
#include <i2c.h>
/* I2C chip addresses */
-#define PALMAS_CHIP_ADDR 0x48
+#define TWL603X_CHIP_P1 0x48 /* Page 1 */
+#define TPS659038_CHIP_P1 0x58 /* Page 1 */
+
+/* LDO1_CTRL */
+#define LDO1_CTRL 0x50
+#define LDO1_VOLTAGE 0x51
/* 0x1XY translates to page 1, register address 0xXY */
#define LDO9_CTRL 0x60
@@ -38,6 +43,8 @@
#define LDO_MODE_SLEEP (1 << 2)
#define LDO_MODE_ACTIVE (1 << 0)
+/* LDO Volatge */
+#define LDO_VOLT_3V0 0x2b
/*
* Functions to read and write from TPS659038/TWL6035/TWL6037
* or other Palmas family of TI PMICs
@@ -53,6 +60,7 @@ static inline int palmas_i2c_read_u8(u8 chip_no, u8 reg, u8
*val)
}
void palmas_init_settings(void);
-int palmas_mmc1_poweron_ldo(void);
+int palmas_mmc1_poweron_ldo9(void);
+int tps659038_mmc1_poweron_ldo1(void);
#endif /* PALMAS_H */
--
1.7.9.5
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