diff options
| author | Marek Vasut <marek.vasut+renesas@gmail.com> | 2017-09-26 00:06:22 +0300 |
|---|---|---|
| committer | Marek Vasut <marek.vasut+renesas@gmail.com> | 2018-04-12 00:11:59 +0300 |
| commit | e10422f108584269e0a81b16d45d68a22c527878 (patch) | |
| tree | cffe6e68e6d74a5d362050da8f0939641c3eeef4 /drivers | |
| parent | 58c35b17aa8f6192d44edcd016ab2f7045bc0e97 (diff) | |
| download | u-boot-e10422f108584269e0a81b16d45d68a22c527878.tar.xz | |
mmc: matsushita-common: Properly handle pin voltage configuration
Factor out the regulator handling into set_ios and add support for
selecting pin configuration based on the voltage to support UHS modes.
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Jaehoon Chung <jh80.chung@samsung.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/mmc/matsushita-common.c | 52 | ||||
| -rw-r--r-- | drivers/mmc/matsushita-common.h | 3 |
2 files changed, 46 insertions, 9 deletions
diff --git a/drivers/mmc/matsushita-common.c b/drivers/mmc/matsushita-common.c index d5facd972f..b143f5c229 100644 --- a/drivers/mmc/matsushita-common.c +++ b/drivers/mmc/matsushita-common.c @@ -10,6 +10,7 @@ #include <fdtdec.h> #include <mmc.h> #include <dm.h> +#include <dm/pinctrl.h> #include <linux/compat.h> #include <linux/dma-direction.h> #include <linux/io.h> @@ -593,6 +594,46 @@ static void matsu_sd_set_clk_rate(struct matsu_sd_priv *priv, udelay(1000); } +static void matsu_sd_set_pins(struct udevice *dev) +{ + __maybe_unused struct mmc *mmc = mmc_get_mmc_dev(dev); + +#ifdef CONFIG_DM_REGULATOR + struct matsu_sd_priv *priv = dev_get_priv(dev); + + if (priv->vqmmc_dev) { + if (mmc->signal_voltage == MMC_SIGNAL_VOLTAGE_180) + regulator_set_value(priv->vqmmc_dev, 1800000); + else + regulator_set_value(priv->vqmmc_dev, 3300000); + regulator_set_enable(priv->vqmmc_dev, true); + } +#endif + +#ifdef CONFIG_PINCTRL + switch (mmc->selected_mode) { + case MMC_LEGACY: + case SD_LEGACY: + case MMC_HS: + case SD_HS: + case MMC_HS_52: + case MMC_DDR_52: + pinctrl_select_state(dev, "default"); + break; + case UHS_SDR12: + case UHS_SDR25: + case UHS_SDR50: + case UHS_DDR50: + case UHS_SDR104: + case MMC_HS_200: + pinctrl_select_state(dev, "state_uhs"); + break; + default: + break; + } +#endif +} + int matsu_sd_set_ios(struct udevice *dev) { struct matsu_sd_priv *priv = dev_get_priv(dev); @@ -607,6 +648,7 @@ int matsu_sd_set_ios(struct udevice *dev) return ret; matsu_sd_set_ddr_mode(priv, mmc); matsu_sd_set_clk_rate(priv, mmc); + matsu_sd_set_pins(dev); return 0; } @@ -671,9 +713,6 @@ int matsu_sd_probe(struct udevice *dev, u32 quirks) fdt_addr_t base; struct clk clk; int ret; -#ifdef CONFIG_DM_REGULATOR - struct udevice *vqmmc_dev; -#endif base = devfdt_get_addr(dev); if (base == FDT_ADDR_T_NONE) @@ -684,12 +723,7 @@ int matsu_sd_probe(struct udevice *dev, u32 quirks) return -ENOMEM; #ifdef CONFIG_DM_REGULATOR - ret = device_get_supply_regulator(dev, "vqmmc-supply", &vqmmc_dev); - if (!ret) { - /* Set the regulator to 3.3V until we support 1.8V modes */ - regulator_set_value(vqmmc_dev, 3300000); - regulator_set_enable(vqmmc_dev, true); - } + device_get_supply_regulator(dev, "vqmmc-supply", &priv->vqmmc_dev); #endif ret = clk_get_by_index(dev, 0, &clk); diff --git a/drivers/mmc/matsushita-common.h b/drivers/mmc/matsushita-common.h index 8c81bbcc4b..b019b72b3e 100644 --- a/drivers/mmc/matsushita-common.h +++ b/drivers/mmc/matsushita-common.h @@ -130,6 +130,9 @@ struct matsu_sd_priv { #define MATSU_SD_CAP_RCAR_UHS BIT(7) /* Renesas RCar UHS/SDR modes */ #define MATSU_SD_CAP_RCAR \ (MATSU_SD_CAP_RCAR_GEN2 | MATSU_SD_CAP_RCAR_GEN3) +#ifdef CONFIG_DM_REGULATOR + struct udevice *vqmmc_dev; +#endif }; int matsu_sd_send_cmd(struct udevice *dev, struct mmc_cmd *cmd, |