mxs: mmc: mx23_olinuxino: Add MMC support

Add support for the MMC attached to SSP1.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Otavio Salvador <otavio@ossystems.com.br>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Stefano Babic <sbabic@denx.de>
diff --git a/board/olimex/mx23_olinuxino/mx23_olinuxino.c b/board/olimex/mx23_olinuxino/mx23_olinuxino.c
index 2fcad26..6a6053b 100644
--- a/board/olimex/mx23_olinuxino/mx23_olinuxino.c
+++ b/board/olimex/mx23_olinuxino/mx23_olinuxino.c
@@ -23,7 +23,10 @@
  */
 
 #include <common.h>
+#include <asm/io.h>
+#include <asm/arch/iomux-mx23.h>
 #include <asm/arch/imx-regs.h>
+#include <asm/arch/clock.h>
 #include <asm/arch/sys_proto.h>
 
 DECLARE_GLOBAL_DATA_PTR;
@@ -33,7 +36,12 @@
  */
 int board_early_init_f(void)
 {
-	/* SSP clock init will come here soon. */
+	/* IO0 clock at 480MHz */
+	mxs_set_ioclk(MXC_IOCLK0, 480000);
+
+	/* SSP0 clock at 96MHz */
+	mxs_set_sspclk(MXC_SSPCLK0, 96000, 0);
+
 	return 0;
 }
 
@@ -42,6 +50,18 @@
 	return mxs_dram_init();
 }
 
+#ifdef	CONFIG_CMD_MMC
+static int mx23_olx_mmc_cd(int id)
+{
+	return 1;	/* Card always present */
+}
+
+int board_mmc_init(bd_t *bis)
+{
+	return mxsmmc_initialize(bis, 0, NULL, mx23_olx_mmc_cd);
+}
+#endif
+
 int board_init(void)
 {
 	/* Adress of boot parameters */