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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>
This commit is contained in:
Lokesh Vutla 2016-11-23 13:25:28 +05:30 committed by Tom Rini
parent f56e635099
commit b4b060066f
6 changed files with 82 additions and 48 deletions
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2
arch/arm/include/asm/omap_mmc.h
View File

@ -167,5 +167,5 @@ struct hsmmc {
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_ */

13
arch/arm/mach-omap2/omap4/hwinit.c
View File

@ -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 @@ void v7_outer_cache_disable(void)
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);
}

34
arch/arm/mach-omap2/omap5/hwinit.c
View File

@ -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 @@ void v7_arch_cp15_set_acr(u32 acr, u32 cpu_midr, u32 cpu_rev_comb,
#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

47
drivers/mmc/omap_hsmmc.c
View File

@ -96,44 +96,6 @@ static int omap_mmc_setup_gpio_in(int gpio, const char *label)
}
#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 @@ static unsigned char mmc_board_init(struct mmc *mmc)
&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 @@ void mmc_init_stream(struct hsmmc *mmc_base)
writel(readl(&mmc_base->con) & ~INIT_INITSTREAM, &mmc_base->con);
}
static int omap_hsmmc_init_setup(struct mmc *mmc)
{
struct hsmmc *mmc_base;

21
drivers/power/palmas.c
View File

@ -23,7 +23,26 @@ void palmas_init_settings(void)
#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;

13
include/palmas.h
View File

@ -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 @@ 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_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);