dm: mmc: dwmmc: Support CONFIG_BLK

Add support for using driver model for block devices in this driver.

Signed-off-by: Simon Glass <sjg@chromium.org>

drivers/mmc/dw_mmc.c

@@ -454,27 +454,40 @@ static const struct mmc_ops dwmci_ops = {
 	.init		= dwmci_init,
 };
 
-int add_dwmci(struct dwmci_host *host, u32 max_clk, u32 min_clk)
+void dwmci_setup_cfg(struct mmc_config *cfg, const char *name, int buswidth,
+		     uint caps, u32 max_clk, u32 min_clk)
 {
-	host->cfg.name = host->name;
-	host->cfg.ops = &dwmci_ops;
-	host->cfg.f_min = min_clk;
-	host->cfg.f_max = max_clk;
+	cfg->name = name;
+	cfg->ops = &dwmci_ops;
+	cfg->f_min = min_clk;
+	cfg->f_max = max_clk;
 
-	host->cfg.voltages = MMC_VDD_32_33 | MMC_VDD_33_34 | MMC_VDD_165_195;
+	cfg->voltages = MMC_VDD_32_33 | MMC_VDD_33_34 | MMC_VDD_165_195;
 
-	host->cfg.host_caps = host->caps;
+	cfg->host_caps = caps;
 
-	if (host->buswidth == 8) {
-		host->cfg.host_caps |= MMC_MODE_8BIT;
-		host->cfg.host_caps &= ~MMC_MODE_4BIT;
+	if (buswidth == 8) {
+		cfg->host_caps |= MMC_MODE_8BIT;
+		cfg->host_caps &= ~MMC_MODE_4BIT;
 	} else {
-		host->cfg.host_caps |= MMC_MODE_4BIT;
-		host->cfg.host_caps &= ~MMC_MODE_8BIT;
+		cfg->host_caps |= MMC_MODE_4BIT;
+		cfg->host_caps &= ~MMC_MODE_8BIT;
 	}
-	host->cfg.host_caps |= MMC_MODE_HS | MMC_MODE_HS_52MHz;
+	cfg->host_caps |= MMC_MODE_HS | MMC_MODE_HS_52MHz;
+
+	cfg->b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT;
+}
 
-	host->cfg.b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT;
+#ifdef CONFIG_BLK
+int dwmci_bind(struct udevice *dev, struct mmc *mmc, struct mmc_config *cfg)
+{
+	return mmc_bind(dev, mmc, cfg);
+}
+#else
+int add_dwmci(struct dwmci_host *host, u32 max_clk, u32 min_clk)
+{
+	dwmci_setup_cfg(&host->cfg, host->name, host->buswidth, host->caps,
+			max_clk, min_clk);
 
 	host->mmc = mmc_create(&host->cfg, host);
 	if (host->mmc == NULL)
@@ -482,3 +495,4 @@ int add_dwmci(struct dwmci_host *host, u32 max_clk, u32 min_clk)
 
 	return 0;
 }
+#endif

include/dwmmc.h

@@ -180,8 +180,9 @@ struct dwmci_host {
 	 * @freq:	Frequency the host is trying to achieve
 	 */
 	unsigned int (*get_mmc_clk)(struct dwmci_host *host, uint freq);
-
+#ifndef CONFIG_BLK
 	struct mmc_config cfg;
+#endif
 
 	/* use fifo mode to read and write data */
 	bool fifo_mode;
@@ -223,5 +224,9 @@ static inline u8 dwmci_readb(struct dwmci_host *host, int reg)
 	return readb(host->ioaddr + reg);
 }
 
+void dwmci_setup_cfg(struct mmc_config *cfg, const char *name, int buswidth,
+		     uint caps, u32 max_clk, u32 min_clk);
+int dwmci_bind(struct udevice *dev, struct mmc *mmc, struct mmc_config *cfg);
+
 int add_dwmci(struct dwmci_host *host, u32 max_clk, u32 min_clk);
 #endif	/* __DWMMC_HW_H */