From 345d3c0f01172995da749fb9ac57faa8b639cfdc Mon Sep 17 00:00:00 2001
From: Michal Simek <michal.simek@xilinx.com>
Date: Mon, 24 Feb 2014 11:16:31 +0100
Subject: mmc: zynq: Add OF initialization support

Enable initialize sdhci from DTB.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
---
 drivers/mmc/zynq_sdhci.c | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)

(limited to 'drivers')

diff --git a/drivers/mmc/zynq_sdhci.c b/drivers/mmc/zynq_sdhci.c
index 72a272f..fdce2c2 100644
--- a/drivers/mmc/zynq_sdhci.c
+++ b/drivers/mmc/zynq_sdhci.c
@@ -7,6 +7,8 @@
  */
 
 #include <common.h>
+#include <fdtdec.h>
+#include <libfdt.h>
 #include <malloc.h>
 #include <sdhci.h>
 #include <asm/arch/sys_proto.h>
@@ -32,3 +34,30 @@ int zynq_sdhci_init(u32 regbase)
 	add_sdhci(host, 52000000, 52000000 >> 9);
 	return 0;
 }
+
+#ifdef CONFIG_OF_CONTROL
+int zynq_sdhci_of_init(const void *blob)
+{
+	int offset = 0;
+	u32 ret = 0;
+	u32 reg;
+
+	debug("ZYNQ SDHCI: Initialization\n");
+
+	do {
+		offset = fdt_node_offset_by_compatible(blob, offset,
+					"arasan,sdhci-8.9a");
+		if (offset != -1) {
+			reg = fdtdec_get_addr(blob, offset, "reg");
+			if (reg != FDT_ADDR_T_NONE) {
+				ret |= zynq_sdhci_init(reg);
+			} else {
+				debug("ZYNQ SDHCI: Can't get base address\n");
+				return -1;
+			}
+		}
+	} while (offset != -1);
+
+	return ret;
+}
+#endif
-- 
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