mmc: sdhci: only flush cache for data command

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

diff --git a/drivers/mmc/omap_hsmmc.c b/drivers/mmc/omap_hsmmc.c
index e80ac3d7220cdc32719257f96f205a7f397d65ea..7ed532843bca8f859546078397a1d32a18006038 100644 (file)
--- a/drivers/mmc/omap_hsmmc.c
+++ b/drivers/mmc/omap_hsmmc.c
@@ -37,6 +37,9 @@
 #include <asm/gpio.h>
 #include <asm/arch/sys_proto.h>
 #endif
+#ifdef CONFIG_MMC_OMAP36XX_PINS
+#include <asm/arch/mux.h>
+#endif
 #include <dm.h>
 
 DECLARE_GLOBAL_DATA_PTR;
@@ -96,56 +99,28 @@ 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)
        t2_t *t2_base = (t2_t *)T2_BASE;
        struct prcm *prcm_base = (struct prcm *)PRCM_BASE;
        u32 pbias_lite;
+#ifdef CONFIG_MMC_OMAP36XX_PINS
+       u32 wkup_ctrl = readl(OMAP34XX_CTRL_WKUP_CTRL);
+#endif
 
        pbias_lite = readl(&t2_base->pbias_lite);
        pbias_lite &= ~(PBIASLITEPWRDNZ1 | PBIASLITEPWRDNZ0);
 #ifdef CONFIG_TARGET_OMAP3_CAIRO
        /* for cairo board, we need to set up 1.8 Volt bias level on MMC1 */
        pbias_lite &= ~PBIASLITEVMODE0;
+#endif
+#ifdef CONFIG_MMC_OMAP36XX_PINS
+       if (get_cpu_family() == CPU_OMAP36XX) {
+               /* Disable extended drain IO before changing PBIAS */
+               wkup_ctrl &= ~OMAP34XX_CTRL_WKUP_CTRL_GPIO_IO_PWRDNZ;
+               writel(wkup_ctrl, OMAP34XX_CTRL_WKUP_CTRL);
+       }
 #endif
        writel(pbias_lite, &t2_base->pbias_lite);
 
@@ -153,6 +128,13 @@ static unsigned char mmc_board_init(struct mmc *mmc)
                PBIASSPEEDCTRL0 | PBIASLITEPWRDNZ0,
                &t2_base->pbias_lite);
 
+#ifdef CONFIG_MMC_OMAP36XX_PINS
+       if (get_cpu_family() == CPU_OMAP36XX)
+               /* Enable extended drain IO after changing PBIAS */
+               writel(wkup_ctrl |
+                               OMAP34XX_CTRL_WKUP_CTRL_GPIO_IO_PWRDNZ,
+                               OMAP34XX_CTRL_WKUP_CTRL);
+#endif
        writel(readl(&t2_base->devconf0) | MMCSDIO1ADPCLKISEL,
                &t2_base->devconf0);
 
@@ -173,14 +155,10 @@ 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 +192,6 @@ 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;
@@ -554,7 +531,7 @@ static int mmc_write_data(struct hsmmc *mmc_base, const char *buf,
        return 0;
 }
 
-static void omap_hsmmc_set_ios(struct mmc *mmc)
+static int omap_hsmmc_set_ios(struct mmc *mmc)
 {
        struct hsmmc *mmc_base;
        unsigned int dsor = 0;
@@ -602,10 +579,12 @@ static void omap_hsmmc_set_ios(struct mmc *mmc)
        while ((readl(&mmc_base->sysctl) & ICS_MASK) == ICS_NOTREADY) {
                if (get_timer(0) - start > MAX_RETRY_MS) {
                        printf("%s: timedout waiting for ics!\n", __func__);
-                       return;
+                       return -ETIMEDOUT;
                }
        }
        writel(readl(&mmc_base->sysctl) | CEN_ENABLE, &mmc_base->sysctl);
+
+       return 0;
 }
 
 #ifdef OMAP_HSMMC_USE_GPIO
@@ -700,8 +679,7 @@ int omap_mmc_init(int dev_index, uint host_caps_mask, uint f_max, int cd_gpio,
        case 1:
                priv_data->base_addr = (struct hsmmc *)OMAP_HSMMC2_BASE;
 #if (defined(CONFIG_OMAP44XX) || defined(CONFIG_OMAP54XX) || \
-       defined(CONFIG_DRA7XX) || defined(CONFIG_AM57XX) || \
-       defined(CONFIG_AM33XX) || \
+       defined(CONFIG_DRA7XX) || defined(CONFIG_AM33XX) || \
        defined(CONFIG_AM43XX) || defined(CONFIG_SOC_KEYSTONE)) && \
                defined(CONFIG_HSMMC2_8BIT)
                /* Enable 8-bit interface for eMMC on OMAP4/5 or DRA7XX */
@@ -712,7 +690,7 @@ int omap_mmc_init(int dev_index, uint host_caps_mask, uint f_max, int cd_gpio,
 #ifdef OMAP_HSMMC3_BASE
        case 2:
                priv_data->base_addr = (struct hsmmc *)OMAP_HSMMC3_BASE;
-#if (defined(CONFIG_DRA7XX) || defined(CONFIG_AM57XX)) && defined(CONFIG_HSMMC3_8BIT)
+#if defined(CONFIG_DRA7XX) && defined(CONFIG_HSMMC3_8BIT)
                /* Enable 8-bit interface for eMMC on DRA7XX */
                host_caps_val |= MMC_MODE_8BIT;
 #endif
@@ -770,7 +748,7 @@ static int omap_hsmmc_ofdata_to_platdata(struct udevice *dev)
 {
        struct omap_hsmmc_data *priv = dev_get_priv(dev);
        const void *fdt = gd->fdt_blob;
-       int node = dev->of_offset;
+       int node = dev_of_offset(dev);
        struct mmc_config *cfg;
        int val;
 
@@ -801,7 +779,9 @@ static int omap_hsmmc_ofdata_to_platdata(struct udevice *dev)
        cfg->voltages = MMC_VDD_32_33 | MMC_VDD_33_34 | MMC_VDD_165_195;
        cfg->b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT;
 
+#ifdef OMAP_HSMMC_USE_GPIO
        priv->cd_inverted = fdtdec_get_bool(fdt, node, "cd-inverted");
+#endif
 
        return 0;
 }