X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=drivers%2Fmmc%2Fzynq_sdhci.c;h=28cedf0c468b3027c4ac6394f2fcb76f0f5159f5;hb=61e745d1311532a90de537cc470da12d306ee193;hp=b59feca80b5cf1d649e4b03a81eb232ecee38bf6;hpb=cacd1d2f33da2d78e8568f2e48539a4a57de20ae;p=platform%2Fkernel%2Fu-boot.git

diff --git a/drivers/mmc/zynq_sdhci.c b/drivers/mmc/zynq_sdhci.c
index b59feca..28cedf0 100644
--- a/drivers/mmc/zynq_sdhci.c
+++ b/drivers/mmc/zynq_sdhci.c
@@ -6,6 +6,7 @@
  * SPDX-License-Identifier:	GPL-2.0+
  */
 
+#include <clk.h>
 #include <common.h>
 #include <dm.h>
 #include <fdtdec.h>
@@ -13,14 +14,45 @@
 #include <malloc.h>
 #include <sdhci.h>
 
+DECLARE_GLOBAL_DATA_PTR;
+
 #ifndef CONFIG_ZYNQ_SDHCI_MIN_FREQ
 # define CONFIG_ZYNQ_SDHCI_MIN_FREQ	0
 #endif
 
+struct arasan_sdhci_plat {
+	struct mmc_config cfg;
+	struct mmc mmc;
+	unsigned int f_max;
+};
+
 static int arasan_sdhci_probe(struct udevice *dev)
 {
+	struct arasan_sdhci_plat *plat = dev_get_platdata(dev);
 	struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev);
 	struct sdhci_host *host = dev_get_priv(dev);
+	struct clk clk;
+	unsigned long clock;
+	int ret;
+
+	ret = clk_get_by_index(dev, 0, &clk);
+	if (ret < 0) {
+		dev_err(dev, "failed to get clock\n");
+		return ret;
+	}
+
+	clock = clk_get_rate(&clk);
+	if (IS_ERR_VALUE(clock)) {
+		dev_err(dev, "failed to get rate\n");
+		return clock;
+	}
+	debug("%s: CLK %ld\n", __func__, clock);
+
+	ret = clk_enable(&clk);
+	if (ret && ret != -ENOSYS) {
+		dev_err(dev, "failed to enable clock\n");
+		return ret;
+	}
 
 	host->quirks = SDHCI_QUIRK_WAIT_SEND_CMD |
 		       SDHCI_QUIRK_BROKEN_R1B;
@@ -29,26 +61,41 @@ static int arasan_sdhci_probe(struct udevice *dev)
 	host->quirks |= SDHCI_QUIRK_NO_HISPD_BIT;
 #endif
 
-	host->version = sdhci_readw(host, SDHCI_HOST_VERSION);
-
-	add_sdhci(host, CONFIG_ZYNQ_SDHCI_MAX_FREQ,
-		  CONFIG_ZYNQ_SDHCI_MIN_FREQ);
+	host->max_clk = clock;
 
+	ret = sdhci_setup_cfg(&plat->cfg, host, plat->f_max,
+			      CONFIG_ZYNQ_SDHCI_MIN_FREQ);
+	host->mmc = &plat->mmc;
+	if (ret)
+		return ret;
+	host->mmc->priv = host;
+	host->mmc->dev = dev;
 	upriv->mmc = host->mmc;
 
-	return 0;
+	return sdhci_probe(dev);
 }
 
 static int arasan_sdhci_ofdata_to_platdata(struct udevice *dev)
 {
+	struct arasan_sdhci_plat *plat = dev_get_platdata(dev);
 	struct sdhci_host *host = dev_get_priv(dev);
 
 	host->name = dev->name;
 	host->ioaddr = (void *)dev_get_addr(dev);
 
+	plat->f_max = fdtdec_get_int(gd->fdt_blob, dev->of_offset,
+				"max-frequency", CONFIG_ZYNQ_SDHCI_MAX_FREQ);
+
 	return 0;
 }
 
+static int arasan_sdhci_bind(struct udevice *dev)
+{
+	struct arasan_sdhci_plat *plat = dev_get_platdata(dev);
+
+	return sdhci_bind(dev, &plat->mmc, &plat->cfg);
+}
+
 static const struct udevice_id arasan_sdhci_ids[] = {
 	{ .compatible = "arasan,sdhci-8.9a" },
 	{ }
@@ -59,6 +106,9 @@ U_BOOT_DRIVER(arasan_sdhci_drv) = {
 	.id		= UCLASS_MMC,
 	.of_match	= arasan_sdhci_ids,
 	.ofdata_to_platdata = arasan_sdhci_ofdata_to_platdata,
+	.ops		= &sdhci_ops,
+	.bind		= arasan_sdhci_bind,
 	.probe		= arasan_sdhci_probe,
 	.priv_auto_alloc_size = sizeof(struct sdhci_host),
+	.platdata_auto_alloc_size = sizeof(struct arasan_sdhci_plat),
 };