SPDX-License-Identifier: clean up license header

[u-boot] / drivers / mmc / omap_hsmmc.c

diff --git a/drivers/mmc/omap_hsmmc.c b/drivers/mmc/omap_hsmmc.c
index 0fdbac391260e51126ea6a5d151b0fd5c9417ee0..975b2c5ba4d74b1ae875a205341efec5bd233e82 100644 (file)
--- a/drivers/mmc/omap_hsmmc.c
+++ b/drivers/mmc/omap_hsmmc.c
@@ -29,7 +29,8 @@
 #include <i2c.h>
 #include <twl4030.h>
 #include <twl6030.h>
-#include <twl6035.h>
+#include <palmas.h>
+#include <asm/gpio.h>
 #include <asm/io.h>
 #include <asm/arch/mmc_host_def.h>
 #include <asm/arch/sys_proto.h>
@@ -40,6 +41,8 @@
 
 struct omap_hsmmc_data {
        struct hsmmc *base_addr;
+       int cd_gpio;
+       int wp_gpio;
 };
 
 /* If we fail after 1 second wait, something is really bad */
@@ -51,50 +54,80 @@ static int mmc_write_data(struct hsmmc *mmc_base, const char *buf,
 static struct mmc hsmmc_dev[3];
 static struct omap_hsmmc_data hsmmc_dev_data[3];
 
+#if (defined(CONFIG_OMAP_GPIO) && !defined(CONFIG_SPL_BUILD)) || \
+       (defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_GPIO_SUPPORT))
+static int omap_mmc_setup_gpio_in(int gpio, const char *label)
+{
+       if (!gpio_is_valid(gpio))
+               return -1;
+
+       if (gpio_request(gpio, label) < 0)
+               return -1;
+
+       if (gpio_direction_input(gpio) < 0)
+               return -1;
+
+       return gpio;
+}
+
+static int omap_mmc_getcd(struct mmc *mmc)
+{
+       int cd_gpio = ((struct omap_hsmmc_data *)mmc->priv)->cd_gpio;
+       return gpio_get_value(cd_gpio);
+}
+
+static int omap_mmc_getwp(struct mmc *mmc)
+{
+       int wp_gpio = ((struct omap_hsmmc_data *)mmc->priv)->wp_gpio;
+       return gpio_get_value(wp_gpio);
+}
+#else
+static inline int omap_mmc_setup_gpio_in(int gpio, const char *label)
+{
+       return -1;
+}
+
+#define omap_mmc_getcd NULL
+#define omap_mmc_getwp NULL
+#endif
+
 #if defined(CONFIG_OMAP44XX) && defined(CONFIG_TWL6030_POWER)
 static void omap4_vmmc_pbias_config(struct mmc *mmc)
 {
        u32 value = 0;
-       struct omap_sys_ctrl_regs *const ctrl =
-               (struct omap_sys_ctrl_regs *) SYSCTRL_GENERAL_CORE_BASE;
-
 
-       value = readl(&ctrl->control_pbiaslite);
+       value = readl((*ctrl)->control_pbiaslite);
        value &= ~(MMC1_PBIASLITE_PWRDNZ | MMC1_PWRDNZ);
-       writel(value, &ctrl->control_pbiaslite);
+       writel(value, (*ctrl)->control_pbiaslite);
        /* set VMMC to 3V */
        twl6030_power_mmc_init();
-       value = readl(&ctrl->control_pbiaslite);
+       value = readl((*ctrl)->control_pbiaslite);
        value |= MMC1_PBIASLITE_VMODE | MMC1_PBIASLITE_PWRDNZ | MMC1_PWRDNZ;
-       writel(value, &ctrl->control_pbiaslite);
+       writel(value, (*ctrl)->control_pbiaslite);
 }
 #endif
 
-#if defined(CONFIG_OMAP54XX) && defined(CONFIG_TWL6035_POWER)
+#if defined(CONFIG_OMAP54XX) && defined(CONFIG_PALMAS_POWER)
 static void omap5_pbias_config(struct mmc *mmc)
 {
        u32 value = 0;
-       struct omap_sys_ctrl_regs *const ctrl =
-               (struct omap_sys_ctrl_regs *) SYSCTRL_GENERAL_CORE_BASE;
-
-       value = readl(&ctrl->control_pbias);
-       value &= ~(SDCARD_PWRDNZ | SDCARD_BIAS_PWRDNZ);
-       value |= SDCARD_BIAS_HIZ_MODE;
-       writel(value, &ctrl->control_pbias);
-
-       twl6035_mmc1_poweron_ldo();
-
-       value = readl(&ctrl->control_pbias);
-       value &= ~SDCARD_BIAS_HIZ_MODE;
-       value |= SDCARD_PBIASLITE_VMODE | SDCARD_PWRDNZ | 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);
-       }
+
+       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
 
@@ -143,7 +176,7 @@ unsigned char mmc_board_init(struct mmc *mmc)
        if (mmc->block_dev.dev == 0)
                omap4_vmmc_pbias_config(mmc);
 #endif
-#if defined(CONFIG_OMAP54XX) && defined(CONFIG_TWL6035_POWER)
+#if defined(CONFIG_OMAP54XX) && defined(CONFIG_PALMAS_POWER)
        if (mmc->block_dev.dev == 0)
                omap5_pbias_config(mmc);
 #endif
@@ -548,7 +581,8 @@ static void mmc_set_ios(struct mmc *mmc)
        writel(readl(&mmc_base->sysctl) | CEN_ENABLE, &mmc_base->sysctl);
 }
 
-int omap_mmc_init(int dev_index, uint host_caps_mask, uint f_max)
+int omap_mmc_init(int dev_index, uint host_caps_mask, uint f_max, int cd_gpio,
+               int wp_gpio)
 {
        struct mmc *mmc = &hsmmc_dev[dev_index];
        struct omap_hsmmc_data *priv_data = &hsmmc_dev_data[dev_index];
@@ -557,7 +591,6 @@ int omap_mmc_init(int dev_index, uint host_caps_mask, uint f_max)
        mmc->send_cmd = mmc_send_cmd;
        mmc->set_ios = mmc_set_ios;
        mmc->init = mmc_init_setup;
-       mmc->getcd = NULL;
        mmc->priv = priv_data;
 
        switch (dev_index) {
@@ -578,6 +611,14 @@ int omap_mmc_init(int dev_index, uint host_caps_mask, uint f_max)
                priv_data->base_addr = (struct hsmmc *)OMAP_HSMMC1_BASE;
                return 1;
        }
+       priv_data->cd_gpio = omap_mmc_setup_gpio_in(cd_gpio, "mmc_cd");
+       if (priv_data->cd_gpio != -1)
+               mmc->getcd = omap_mmc_getcd;
+
+       priv_data->wp_gpio = omap_mmc_setup_gpio_in(wp_gpio, "mmc_wp");
+       if (priv_data->wp_gpio != -1)
+               mmc->getwp = omap_mmc_getwp;
+
        mmc->voltages = MMC_VDD_32_33 | MMC_VDD_33_34 | MMC_VDD_165_195;
        mmc->host_caps = (MMC_MODE_4BIT | MMC_MODE_HS_52MHz | MMC_MODE_HS |
                                MMC_MODE_HC) & ~host_caps_mask;