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>

board/xilinx/zynq/board.c

@@ -54,6 +54,23 @@ int board_eth_init(bd_t *bis)
 }
 #endif
 
+#ifdef CONFIG_CMD_MMC
+int board_mmc_init(bd_t *bd)
+{
+	int ret = 0;
+
+#if defined(CONFIG_ZYNQ_SDHCI)
+# if defined(CONFIG_ZYNQ_SDHCI0)
+	ret = zynq_sdhci_init(ZYNQ_SDHCI_BASEADDR0);
+# endif
+# if defined(CONFIG_ZYNQ_SDHCI1)
+	ret |= zynq_sdhci_init(ZYNQ_SDHCI_BASEADDR1);
+# endif
+#endif
+	return ret;
+}
+#endif
+
 int dram_init(void)
 {
 	gd->ram_size = CONFIG_SYS_SDRAM_SIZE;