zynqmp: Add support for EMMC bootmode

Add support for EMMC bootmode.
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

arch/arm/include/asm/arch-zynqmp/hardware.h

@@ -45,7 +45,8 @@ struct iou_scntr {
 
 /* Bootmode setting values */
 #define BOOT_MODES_MASK	0x0000000F
-#define SD_MODE		0x00000005
+#define SD_MODE		0x00000003
+#define EMMC_MODE	0x00000006
 #define JTAG_MODE	0x00000000
 
 #define ZYNQMP_RPU_BASEADDR	0xFF9A0000

board/xilinx/zynqmp/zynqmp.c

@@ -83,6 +83,7 @@ int board_late_init(void)
 
 	switch (bootmode) {
 	case SD_MODE:
+	case EMMC_MODE:
 		setenv("modeboot", "sdboot");
 		break;
 	default: