mmc: gen_atmel_mci: Fix wrong arguments used of bind()

The bind() method is called before the device is probed and so the
device has no private data, should use the platform data, and set up
a new struct to hold the mmc and cfg members.

Signed-off-by: Wenyou Yang <wenyou.yang@microchip.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

drivers/mmc/gen_atmel_mci.c

@@ -36,13 +36,22 @@ DECLARE_GLOBAL_DATA_PTR;
 # define MCI_BUS 0
 #endif
 
+#ifdef CONFIG_DM_MMC
+struct atmel_mci_plat {
+	struct mmc		mmc;
+	struct mmc_config	cfg;
+	struct atmel_mci	*mci;
+};
+#endif
+
 struct atmel_mci_priv {
+#ifndef CONFIG_DM_MMC
 	struct mmc_config	cfg;
 	struct atmel_mci	*mci;
+#endif
 	unsigned int		initialized:1;
 	unsigned int		curr_clk;
 #ifdef CONFIG_DM_MMC
-	struct mmc	mmc;
 	ulong		bus_clk_rate;
 #endif
 };
@@ -67,18 +76,21 @@ static void dump_cmd(u32 cmdr, u32 arg, u32 status, const char* msg)
 
 /* Setup for MCI Clock and Block Size */
 #ifdef CONFIG_DM_MMC
-static void mci_set_mode(struct atmel_mci_priv *priv, u32 hz, u32 blklen)
+static void mci_set_mode(struct udevice *dev, u32 hz, u32 blklen)
 {
-	struct mmc *mmc = &priv->mmc;
+	struct atmel_mci_plat *plat = dev_get_platdata(dev);
+	struct atmel_mci_priv *priv = dev_get_priv(dev);
+	struct mmc *mmc = &plat->mmc;
 	u32 bus_hz = priv->bus_clk_rate;
+	atmel_mci_t *mci = plat->mci;
 #else
 static void mci_set_mode(struct mmc *mmc, u32 hz, u32 blklen)
 {
 	struct atmel_mci_priv *priv = mmc->priv;
 	u32 bus_hz = get_mci_clk_rate();
+	atmel_mci_t *mci = priv->mci;
 #endif
 
-	atmel_mci_t *mci = priv->mci;
 	u32 clkdiv = 255;
 	unsigned int version = atmel_mci_get_version(mci);
 	u32 clkodd = 0;
@@ -222,15 +234,17 @@ io_fail:
 static int atmel_mci_send_cmd(struct udevice *dev, struct mmc_cmd *cmd,
 			      struct mmc_data *data)
 {
+	struct atmel_mci_plat *plat = dev_get_platdata(dev);
 	struct atmel_mci_priv *priv = dev_get_priv(dev);
 	struct mmc *mmc = mmc_get_mmc_dev(dev);
+	atmel_mci_t *mci = plat->mci;
 #else
 static int
 mci_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, struct mmc_data *data)
 {
 	struct atmel_mci_priv *priv = mmc->priv;
-#endif
 	atmel_mci_t *mci = priv->mci;
+#endif
 	u32 cmdr;
 	u32 error_flags = 0;
 	u32 status;
@@ -362,22 +376,23 @@ mci_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, struct mmc_data *data)
 #ifdef CONFIG_DM_MMC
 static int atmel_mci_set_ios(struct udevice *dev)
 {
-	struct atmel_mci_priv *priv = dev_get_priv(dev);
+	struct atmel_mci_plat *plat = dev_get_platdata(dev);
 	struct mmc *mmc = mmc_get_mmc_dev(dev);
+	atmel_mci_t *mci = plat->mci;
 #else
 /* Entered into mmc structure during driver init */
 static int mci_set_ios(struct mmc *mmc)
 {
 	struct atmel_mci_priv *priv = mmc->priv;
-#endif
 	atmel_mci_t *mci = priv->mci;
+#endif
 	int bus_width = mmc->bus_width;
 	unsigned int version = atmel_mci_get_version(mci);
 	int busw;
 
 	/* Set the clock speed */
 #ifdef CONFIG_DM_MMC
-	mci_set_mode(priv, mmc->clock, MMC_DEFAULT_BLKLEN);
+	mci_set_mode(dev, mmc->clock, MMC_DEFAULT_BLKLEN);
 #else
 	mci_set_mode(mmc, mmc->clock, MMC_DEFAULT_BLKLEN);
 #endif
@@ -410,15 +425,17 @@ static int mci_set_ios(struct mmc *mmc)
 }
 
 #ifdef CONFIG_DM_MMC
-static int atmel_mci_hw_init(struct atmel_mci_priv *priv)
+static int atmel_mci_hw_init(struct udevice *dev)
 {
+	struct atmel_mci_plat *plat = dev_get_platdata(dev);
+	atmel_mci_t *mci = plat->mci;
 #else
 /* Entered into mmc structure during driver init */
 static int mci_init(struct mmc *mmc)
 {
 	struct atmel_mci_priv *priv = mmc->priv;
-#endif
 	atmel_mci_t *mci = priv->mci;
+#endif
 
 	/* Initialize controller */
 	writel(MMCI_BIT(SWRST), &mci->cr);	/* soft reset */
@@ -433,7 +450,7 @@ static int mci_init(struct mmc *mmc)
 
 	/* Set default clocks and blocklen */
 #ifdef CONFIG_DM_MMC
-	mci_set_mode(priv, CONFIG_SYS_MMC_CLK_OD, MMC_DEFAULT_BLKLEN);
+	mci_set_mode(dev, CONFIG_SYS_MMC_CLK_OD, MMC_DEFAULT_BLKLEN);
 #else
 	mci_set_mode(mmc, CONFIG_SYS_MMC_CLK_OD, MMC_DEFAULT_BLKLEN);
 #endif
@@ -509,12 +526,14 @@ static const struct dm_mmc_ops atmel_mci_mmc_ops = {
 	.set_ios = atmel_mci_set_ios,
 };
 
-static void atmel_mci_setup_cfg(struct atmel_mci_priv *priv)
+static void atmel_mci_setup_cfg(struct udevice *dev)
 {
+	struct atmel_mci_plat *plat = dev_get_platdata(dev);
+	struct atmel_mci_priv *priv = dev_get_priv(dev);
 	struct mmc_config *cfg;
 	u32 version;
 
-	cfg = &priv->cfg;
+	cfg = &plat->cfg;
 	cfg->name = "Atmel mci";
 	cfg->voltages = MMC_VDD_32_33 | MMC_VDD_33_34;
 
@@ -522,7 +541,7 @@ static void atmel_mci_setup_cfg(struct atmel_mci_priv *priv)
 	 * If the version is above 3.0, the capabilities of the 8-bit
 	 * bus width and high speed are supported.
 	 */
-	version = atmel_mci_get_version(priv->mci);
+	version = atmel_mci_get_version(plat->mci);
 	if ((version & 0xf00) >= 0x300) {
 		cfg->host_caps = MMC_MODE_8BIT |
 				 MMC_MODE_HS | MMC_MODE_HS_52MHz;
@@ -568,7 +587,7 @@ failed:
 static int atmel_mci_probe(struct udevice *dev)
 {
 	struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev);
-	struct atmel_mci_priv *priv = dev_get_priv(dev);
+	struct atmel_mci_plat *plat = dev_get_platdata(dev);
 	struct mmc *mmc;
 	int ret;
 
@@ -576,25 +595,25 @@ static int atmel_mci_probe(struct udevice *dev)
 	if (ret)
 		return ret;
 
-	priv->mci = (struct atmel_mci *)devfdt_get_addr_ptr(dev);
+	plat->mci = (struct atmel_mci *)devfdt_get_addr_ptr(dev);
 
-	atmel_mci_setup_cfg(priv);
+	atmel_mci_setup_cfg(dev);
 
-	mmc = &priv->mmc;
-	mmc->cfg = &priv->cfg;
+	mmc = &plat->mmc;
+	mmc->cfg = &plat->cfg;
 	mmc->dev = dev;
 	upriv->mmc = mmc;
 
-	atmel_mci_hw_init(priv);
+	atmel_mci_hw_init(dev);
 
 	return 0;
 }
 
 static int atmel_mci_bind(struct udevice *dev)
 {
-	struct atmel_mci_priv *priv = dev_get_priv(dev);
+	struct atmel_mci_plat *plat = dev_get_platdata(dev);
 
-	return mmc_bind(dev, &priv->mmc, &priv->cfg);
+	return mmc_bind(dev, &plat->mmc, &plat->cfg);
 }
 
 static const struct udevice_id atmel_mci_ids[] = {
@@ -608,6 +627,7 @@ U_BOOT_DRIVER(atmel_mci) = {
 	.of_match = atmel_mci_ids,
 	.bind = atmel_mci_bind,
 	.probe = atmel_mci_probe,
+	.platdata_auto_alloc_size = sizeof(struct atmel_mci_plat),
 	.priv_auto_alloc_size = sizeof(struct atmel_mci_priv),
 	.ops = &atmel_mci_mmc_ops,
 };