ARM: OMAP4+: Add support for getting pbias info from board
Palmas driver assumes it is always TPS659xx regulator on all DRA7xx based
boards to enable mmc regulator. This is not true always like in case of
DRA71x-evm. So get this information based on the board.
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Vignesh R <vigneshr@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
[trini: Delete omap4_vmmc_pbias_config from omap_hsmmc.c]
Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/arch/arm/include/asm/omap_mmc.h b/arch/arm/include/asm/omap_mmc.h
index b69d073..f2bf645 100644
--- a/arch/arm/include/asm/omap_mmc.h
+++ b/arch/arm/include/asm/omap_mmc.h
@@ -167,5 +167,5 @@
int omap_mmc_init(int dev_index, uint host_caps_mask, uint f_max, int cd_gpio,
int wp_gpio);
-
+void vmmc_pbias_config(uint voltage);
#endif /* OMAP_MMC_H_ */
diff --git a/arch/arm/mach-omap2/omap4/hwinit.c b/arch/arm/mach-omap2/omap4/hwinit.c
index 7c6638c..67ab1cc 100644
--- a/arch/arm/mach-omap2/omap4/hwinit.c
+++ b/arch/arm/mach-omap2/omap4/hwinit.c
@@ -12,6 +12,7 @@
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
+#include <palmas.h>
#include <asm/armv7.h>
#include <asm/arch/cpu.h>
#include <asm/arch/sys_proto.h>
@@ -175,3 +176,15 @@
omap_smc1(OMAP4_SERVICE_PL310_CONTROL_REG_SET, 0);
}
#endif /* !CONFIG_SYS_L2CACHE_OFF */
+
+void vmmc_pbias_config(uint voltage)
+{
+ u32 value = 0;
+
+ value = readl((*ctrl)->control_pbiaslite);
+ value &= ~(MMC1_PBIASLITE_PWRDNZ | MMC1_PWRDNZ);
+ writel(value, (*ctrl)->control_pbiaslite);
+ value = readl((*ctrl)->control_pbiaslite);
+ value |= MMC1_PBIASLITE_VMODE | MMC1_PBIASLITE_PWRDNZ | MMC1_PWRDNZ;
+ writel(value, (*ctrl)->control_pbiaslite);
+}
diff --git a/arch/arm/mach-omap2/omap5/hwinit.c b/arch/arm/mach-omap2/omap5/hwinit.c
index e3ac8bb..839d79d 100644
--- a/arch/arm/mach-omap2/omap5/hwinit.c
+++ b/arch/arm/mach-omap2/omap5/hwinit.c
@@ -13,6 +13,7 @@
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
+#include <palmas.h>
#include <asm/armv7.h>
#include <asm/arch/cpu.h>
#include <asm/arch/sys_proto.h>
@@ -451,3 +452,36 @@
#endif
omap_smc1(OMAP5_SERVICE_ACR_SET, acr);
}
+
+#if defined(CONFIG_PALMAS_POWER)
+void vmmc_pbias_config(uint voltage)
+{
+ u32 value = 0;
+ struct vcores_data const *vcores = *omap_vcores;
+
+ value = readl((*ctrl)->control_pbias);
+ value &= ~SDCARD_PWRDNZ;
+ writel(value, (*ctrl)->control_pbias);
+ udelay(10); /* wait 10 us */
+ value &= ~SDCARD_BIAS_PWRDNZ;
+ writel(value, (*ctrl)->control_pbias);
+
+ if (vcores->core.pmic->i2c_slave_addr == 0x60) {
+ if (voltage == LDO_VOLT_3V0)
+ voltage = 0x19;
+ else if (voltage == LDO_VOLT_1V8)
+ voltage = 0xa;
+ lp873x_mmc1_poweron_ldo(voltage);
+ } else {
+ palmas_mmc1_poweron_ldo(voltage);
+ }
+
+ value = readl((*ctrl)->control_pbias);
+ value |= SDCARD_BIAS_PWRDNZ;
+ 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/mmc/omap_hsmmc.c b/drivers/mmc/omap_hsmmc.c
index 020db98..0a1ee40 100644
--- a/drivers/mmc/omap_hsmmc.c
+++ b/drivers/mmc/omap_hsmmc.c
@@ -96,44 +96,6 @@
}
#endif
-#if defined(CONFIG_OMAP44XX)
-static void omap4_vmmc_pbias_config(struct mmc *mmc)
-{
- u32 value = 0;
-
- value = readl((*ctrl)->control_pbiaslite);
- value &= ~(MMC1_PBIASLITE_PWRDNZ | MMC1_PWRDNZ);
- writel(value, (*ctrl)->control_pbiaslite);
- value = readl((*ctrl)->control_pbiaslite);
- value |= MMC1_PBIASLITE_VMODE | MMC1_PBIASLITE_PWRDNZ | MMC1_PWRDNZ;
- writel(value, (*ctrl)->control_pbiaslite);
-}
-#endif
-
-#if defined(CONFIG_OMAP54XX) && defined(CONFIG_PALMAS_POWER)
-static void omap5_pbias_config(struct mmc *mmc)
-{
- u32 value = 0;
-
- value = readl((*ctrl)->control_pbias);
- 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_PWRDNZ;
- writel(value, (*ctrl)->control_pbias);
- udelay(150); /* wait 150 us */
- value |= SDCARD_PWRDNZ;
- writel(value, (*ctrl)->control_pbias);
- udelay(150); /* wait 150 us */
-}
-#endif
-
static unsigned char mmc_board_init(struct mmc *mmc)
{
#if defined(CONFIG_OMAP34XX)
@@ -173,14 +135,10 @@
&prcm_base->iclken1_core);
#endif
-#if defined(CONFIG_OMAP44XX)
+#if defined(CONFIG_OMAP54XX) || defined(CONFIG_OMAP44XX)
/* PBIAS config needed for MMC1 only */
if (mmc->block_dev.devnum == 0)
- omap4_vmmc_pbias_config(mmc);
-#endif
-#if defined(CONFIG_OMAP54XX) && defined(CONFIG_PALMAS_POWER)
- if (mmc->block_dev.devnum == 0)
- omap5_pbias_config(mmc);
+ vmmc_pbias_config(LDO_VOLT_3V0);
#endif
return 0;
@@ -214,7 +172,6 @@
writel(readl(&mmc_base->con) & ~INIT_INITSTREAM, &mmc_base->con);
}
-
static int omap_hsmmc_init_setup(struct mmc *mmc)
{
struct hsmmc *mmc_base;
diff --git a/drivers/power/palmas.c b/drivers/power/palmas.c
index cfbc9dc..4f9a62c 100644
--- a/drivers/power/palmas.c
+++ b/drivers/power/palmas.c
@@ -23,7 +23,26 @@
#endif
}
-int palmas_mmc1_poweron_ldo(void)
+#if defined(CONFIG_OMAP54XX)
+int lp873x_mmc1_poweron_ldo(uint voltage)
+{
+ if (palmas_i2c_write_u8(LP873X_LDO1_ADDR, LP873X_LDO1_VOLTAGE,
+ voltage)) {
+ printf("lp873x: could not set LDO1 voltage.\n");
+ return 1;
+ }
+ /* TURN ON LDO1 */
+ if (palmas_i2c_write_u8(LP873X_LDO1_ADDR, LP873X_LDO1_CTRL,
+ LP873X_LDO_CTRL_EN | LP873X_LDO_CTRL_RDIS_EN)) {
+ printf("lp873x: could not turn on LDO1.\n");
+ return 1;
+ }
+ return 0;
+
+}
+#endif
+
+int palmas_mmc1_poweron_ldo(uint voltage)
{
u8 val = 0;
diff --git a/include/palmas.h b/include/palmas.h
index cca3f9a..d676617 100644
--- a/include/palmas.h
+++ b/include/palmas.h
@@ -24,6 +24,16 @@
#define LDO1_CTRL 0x50
#define LDO1_VOLTAGE 0x51
+/* LDO1 control/voltage for LP873x */
+#define LP873X_LDO1_ADDR 0x60
+#define LP873X_LDO1_CTRL 0x9
+#define LP873X_LDO1_VOLTAGE 0xa
+#define LP873X_LDO_VOLT_3V0 0x19
+#define LP873X_LDO_VOLT_1V8 0xa
+#define LP873X_LDO_CTRL_EN (0x1 << 0)
+#define LP873X_LDO_CTRL_EN_PINCTRL (0x1 << 1)
+#define LP873X_LDO_CTRL_RDIS_EN (0x1 << 2)
+
/* LDO2 control/voltage */
#define LDO2_CTRL 0x52
#define LDO2_VOLTAGE 0x53
@@ -119,7 +129,8 @@
}
void palmas_init_settings(void);
-int palmas_mmc1_poweron_ldo(void);
+int palmas_mmc1_poweron_ldo(uint voltage);
+int lp873x_mmc1_poweron_ldo(uint voltage);
int twl603x_mmc1_set_ldo9(u8 vsel);
int twl603x_audio_power(u8 on);
int twl603x_enable_bb_charge(u8 bb_fields);