+#ifdef CONFIG_SUPPORT_EMMC_BOOT
+ } else if ((strcmp(argv[1], "open") == 0) ||
+ (strcmp(argv[1], "close") == 0)) {
+ int dev;
+ struct mmc *mmc;
+ u8 part_num, access = 0;
+
+ if (argc == 4) {
+ dev = simple_strtoul(argv[2], NULL, 10);
+ part_num = simple_strtoul(argv[3], NULL, 10);
+ } else {
+ return CMD_RET_USAGE;
+ }
+
+ mmc = find_mmc_device(dev);
+ if (!mmc) {
+ printf("no mmc device at slot %x\n", dev);
+ return 1;
+ }
+
+ if (IS_SD(mmc)) {
+ printf("SD device cannot be opened/closed\n");
+ return 1;
+ }
+
+ if ((part_num <= 0) || (part_num > MMC_NUM_BOOT_PARTITION)) {
+ printf("Invalid boot partition number:\n");
+ printf("Boot partition number cannot be <= 0\n");
+ printf("EMMC44 supports only 2 boot partitions\n");
+ return 1;
+ }
+
+ if (strcmp(argv[1], "open") == 0)
+ access = part_num; /* enable R/W access to boot part*/
+ else
+ access = 0; /* No access to boot partition */
+
+ /* acknowledge to be sent during boot operation */
+ return boot_part_access(mmc, 1, part_num, access);