mmc: tegra: move pad_init_mmc() into MMC driver

pad_init_mmc() is performing an SoC-specific operation, using registers
within the MMC controller. There's no reason to implement this code
outside the MMC driver, so move it inside the driver.

Cc: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>

arch/arm/include/asm/arch-tegra/tegra_mmc.h

@@ -151,7 +151,5 @@ struct mmc_host {
 	struct mmc_config cfg;	/* mmc configuration */
 };
 
-void pad_init_mmc(struct mmc_host *host);
-
 #endif	/* __ASSEMBLY__ */
 #endif	/* __TEGRA_MMC_H_ */

arch/arm/mach-tegra/board186.c

@@ -7,7 +7,6 @@
 #include <common.h>
 #include <asm/arch/tegra.h>
 #include <asm/arch-tegra/mmc.h>
-#include <asm/arch-tegra/tegra_mmc.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -31,10 +30,6 @@ int board_late_init(void)
 	return 0;
 }
 
-void pad_init_mmc(struct mmc_host *host)
-{
-}
-
 int board_mmc_init(bd_t *bd)
 {
 	tegra_mmc_init();

arch/arm/mach-tegra/board2.c

@@ -33,7 +33,6 @@
 #include <usb.h>
 #endif
 #ifdef CONFIG_TEGRA_MMC
-#include <asm/arch-tegra/tegra_mmc.h>
 #include <asm/arch-tegra/mmc.h>
 #endif
 #include <asm/arch-tegra/xusb-padctl.h>
@@ -248,34 +247,6 @@ int board_mmc_init(bd_t *bd)
 
 	return 0;
 }
-
-void pad_init_mmc(struct mmc_host *host)
-{
-#if defined(CONFIG_TEGRA30)
-	enum periph_id id = host->mmc_id;
-	u32 val;
-
-	debug("%s: sdmmc address = %08x, id = %d\n", __func__,
-		(unsigned int)host->reg, id);
-
-	/* Set the pad drive strength for SDMMC1 or 3 only */
-	if (id != PERIPH_ID_SDMMC1 && id != PERIPH_ID_SDMMC3) {
-		debug("%s: settings are only valid for SDMMC1/SDMMC3!\n",
-			__func__);
-		return;
-	}
-
-	val = readl(&host->reg->sdmemcmppadctl);
-	val &= 0xFFFFFFF0;
-	val |= MEMCOMP_PADCTRL_VREF;
-	writel(val, &host->reg->sdmemcmppadctl);
-
-	val = readl(&host->reg->autocalcfg);
-	val &= 0xFFFF0000;
-	val |= AUTO_CAL_PU_OFFSET | AUTO_CAL_PD_OFFSET | AUTO_CAL_ENABLED;
-	writel(val, &host->reg->autocalcfg);
-#endif	/* T30 */
-}
 #endif	/* MMC */
 
 /*

drivers/mmc/tegra_mmc.c

@@ -448,6 +448,34 @@ static void tegra_mmc_set_ios(struct mmc *mmc)
 	debug("mmc_set_ios: hostctl = %08X\n", ctrl);
 }
 
+static void pad_init_mmc(struct mmc_host *host)
+{
+#if defined(CONFIG_TEGRA30)
+	enum periph_id id = host->mmc_id;
+	u32 val;
+
+	debug("%s: sdmmc address = %08x, id = %d\n", __func__,
+	      (unsigned int)host->reg, id);
+
+	/* Set the pad drive strength for SDMMC1 or 3 only */
+	if (id != PERIPH_ID_SDMMC1 && id != PERIPH_ID_SDMMC3) {
+		debug("%s: settings are only valid for SDMMC1/SDMMC3!\n",
+		      __func__);
+		return;
+	}
+
+	val = readl(&host->reg->sdmemcmppadctl);
+	val &= 0xFFFFFFF0;
+	val |= MEMCOMP_PADCTRL_VREF;
+	writel(val, &host->reg->sdmemcmppadctl);
+
+	val = readl(&host->reg->autocalcfg);
+	val &= 0xFFFF0000;
+	val |= AUTO_CAL_PU_OFFSET | AUTO_CAL_PD_OFFSET | AUTO_CAL_ENABLED;
+	writel(val, &host->reg->autocalcfg);
+#endif
+}
+
 static void mmc_reset(struct mmc_host *host, struct mmc *mmc)
 {
 	unsigned int timeout;