Merge branch 'mmci' into amba

4 files changed, 151 insertions, 73 deletions

diff --git a/arch/arm/mach-ux500/board-mop500-sdi.c b/arch/arm/mach-ux500/board-mop500-sdi.c
index 23be34b3bb6e..4049bd7f061f 100644
--- a/arch/arm/mach-ux500/board-mop500-sdi.c
+++ b/arch/arm/mach-ux500/board-mop500-sdi.c
@@ -31,21 +31,13 @@
  * SDI 0 (MicroSD slot)
  */
 
-/* MMCIPOWER bits */
-#define MCI_DATA2DIREN          (1 << 2)
-#define MCI_CMDDIREN            (1 << 3)
-#define MCI_DATA0DIREN          (1 << 4)
-#define MCI_DATA31DIREN         (1 << 5)
-#define MCI_FBCLKEN             (1 << 7)
-
 /* GPIO pins used by the sdi0 level shifter */
 static int sdi0_en = -1;
 static int sdi0_vsel = -1;
 
-static u32 mop500_sdi0_vdd_handler(struct device *dev, unsigned int vdd,
-                                   unsigned char power_mode)
+static int mop500_sdi0_ios_handler(struct device *dev, struct mmc_ios *ios)
 {
-        switch (power_mode) {
+        switch (ios->power_mode) {
         case MMC_POWER_UP:
         case MMC_POWER_ON:
                 /*
@@ -65,8 +57,7 @@ static u32 mop500_sdi0_vdd_handler(struct device *dev, unsigned int vdd,
                 break;
         }
 
-        return MCI_FBCLKEN | MCI_CMDDIREN | MCI_DATA0DIREN |
-               MCI_DATA2DIREN | MCI_DATA31DIREN;
+        return 0;
 }
 
 #ifdef CONFIG_STE_DMA40
@@ -90,13 +81,17 @@ static struct stedma40_chan_cfg mop500_sdi0_dma_cfg_tx = {
 #endif
 
 static struct mmci_platform_data mop500_sdi0_data = {
-        .vdd_handler    = mop500_sdi0_vdd_handler,
+        .ios_handler    = mop500_sdi0_ios_handler,
         .ocr_mask       = MMC_VDD_29_30,
         .f_max          = 50000000,
         .capabilities   = MMC_CAP_4_BIT_DATA |
                                 MMC_CAP_SD_HIGHSPEED |
                                 MMC_CAP_MMC_HIGHSPEED,
         .gpio_wp        = -1,
+        .sigdir         = MCI_ST_FBCLKEN |
+                                MCI_ST_CMDDIREN |
+                                MCI_ST_DATA0DIREN |
+                                MCI_ST_DATA2DIREN,
 #ifdef CONFIG_STE_DMA40
         .dma_filter     = stedma40_filter,
         .dma_rx_param   = &mop500_sdi0_dma_cfg_rx,
diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
index 6692392c05dd..deb73e2b7460 100644
--- a/drivers/mmc/host/mmci.c
+++ b/drivers/mmc/host/mmci.c
@@ -53,6 +53,8 @@ static unsigned int fmax = 515633;
  * @sdio: variant supports SDIO
  * @st_clkdiv: true if using a ST-specific clock divider algorithm
  * @blksz_datactrl16: true if Block size is at b16..b30 position in datactrl register
+ * @pwrreg_powerup: power up value for MMCIPOWER register
+ * @signal_direction: input/out direction of bus signals can be indicated
  */
 struct variant_data {
         unsigned int            clkreg;
@@ -63,18 +65,22 @@ struct variant_data {
         bool                    sdio;
         bool                    st_clkdiv;
         bool                    blksz_datactrl16;
+        u32                     pwrreg_powerup;
+        bool                    signal_direction;
 };
 
 static struct variant_data variant_arm = {
         .fifosize               = 16 * 4,
         .fifohalfsize           = 8 * 4,
         .datalength_bits        = 16,
+        .pwrreg_powerup         = MCI_PWR_UP,
 };
 
 static struct variant_data variant_arm_extended_fifo = {
         .fifosize               = 128 * 4,
         .fifohalfsize           = 64 * 4,
         .datalength_bits        = 16,
+        .pwrreg_powerup         = MCI_PWR_UP,
 };
 
 static struct variant_data variant_u300 = {
@@ -83,6 +89,8 @@ static struct variant_data variant_u300 = {
         .clkreg_enable          = MCI_ST_U300_HWFCEN,
         .datalength_bits        = 16,
         .sdio                   = true,
+        .pwrreg_powerup         = MCI_PWR_ON,
+        .signal_direction       = true,
 };
 
 static struct variant_data variant_ux500 = {
@@ -93,6 +101,8 @@ static struct variant_data variant_ux500 = {
         .datalength_bits        = 24,
         .sdio                   = true,
         .st_clkdiv              = true,
+        .pwrreg_powerup         = MCI_PWR_ON,
+        .signal_direction       = true,
 };
 
 static struct variant_data variant_ux500v2 = {
@@ -104,11 +114,35 @@ static struct variant_data variant_ux500v2 = {
         .sdio                   = true,
         .st_clkdiv              = true,
         .blksz_datactrl16       = true,
+        .pwrreg_powerup         = MCI_PWR_ON,
+        .signal_direction       = true,
 };
 
 /*
  * This must be called with host->lock held
  */
+static void mmci_write_clkreg(struct mmci_host *host, u32 clk)
+{
+        if (host->clk_reg != clk) {
+                host->clk_reg = clk;
+                writel(clk, host->base + MMCICLOCK);
+        }
+}
+
+/*
+ * This must be called with host->lock held
+ */
+static void mmci_write_pwrreg(struct mmci_host *host, u32 pwr)
+{
+        if (host->pwr_reg != pwr) {
+                host->pwr_reg = pwr;
+                writel(pwr, host->base + MMCIPOWER);
+        }
+}
+
+/*
+ * This must be called with host->lock held
+ */
 static void mmci_set_clkreg(struct mmci_host *host, unsigned int desired)
 {
         struct variant_data *variant = host->variant;
@@ -153,7 +187,7 @@ static void mmci_set_clkreg(struct mmci_host *host, unsigned int desired)
         if (host->mmc->ios.bus_width == MMC_BUS_WIDTH_8)
                 clk |= MCI_ST_8BIT_BUS;
 
-        writel(clk, host->base + MMCICLOCK);
+        mmci_write_clkreg(host, clk);
 }
 
 static void
@@ -166,14 +200,10 @@ mmci_request_end(struct mmci_host *host, struct mmc_request *mrq)
         host->mrq = NULL;