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ARM: OMAP4+: Add support for getting pbias info from board

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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);