mmc: Add support for Xilinx Zynq sdhci controller

Add support for SD, MMC and eMMC card on Xilinx Zynq.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Tom Rini <trini@ti.com>

1 files changed, 40 insertions, 0 deletions

diff --git a/drivers/mmc/zynq_sdhci.c b/drivers/mmc/zynq_sdhci.c
new file mode 100644
index 0000000..9e37af4
--- /dev/null
+++ b/drivers/mmc/zynq_sdhci.c
@@ -0,0 +1,40 @@
+/*
+ * (C) Copyright 2013 Inc.
+ *
+ * Xilinx Zynq SD Host Controller Interface
+ *
+ * This program is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License version 2 as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
+ * Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include <common.h>
+#include <malloc.h>
+#include <sdhci.h>
+#include <asm/arch/sys_proto.h>
+
+int zynq_sdhci_init(u32 regbase)
+{
+	struct sdhci_host *host = NULL;
+
+	host = (struct sdhci_host *)malloc(sizeof(struct sdhci_host));
+	if (!host) {
+		printf("zynq_sdhci_init: sdhci_host malloc fail\n");
+		return 1;
+	}
+
+	host->name = "zynq_sdhci";
+	host->ioaddr = (void *)regbase;
+	host->quirks = SDHCI_QUIRK_NO_CD | SDHCI_QUIRK_WAIT_SEND_CMD;
+	host->version = sdhci_readw(host, SDHCI_HOST_VERSION);
+
+	host->host_caps = MMC_MODE_HC;
+
+	add_sdhci(host, 52000000, 52000000 >> 9);
+	return 0;
+}