cmd/gpt: Support gpt command for all devices

The gpt command was only implemented for mmc devices. There is no reason
why this command should not be generalized and be applied all other
storage device classes.
This change both simplifies the implementation and eliminates a
build failure for systems that don't support mmcs.

Signed-off-by: Egbert Eich <eich@suse.com>
Tested-by: Piotr Wilczek <p.wilczek@samsung.com>
[trini: Change coding style slightly]
Signed-off-by: Tom Rini <trini@ti.com>
diff --git a/common/cmd_gpt.c b/common/cmd_gpt.c
index a46f5cc..1f12e6d 100644
--- a/common/cmd_gpt.c
+++ b/common/cmd_gpt.c
@@ -11,7 +11,6 @@
 #include <common.h>
 #include <malloc.h>
 #include <command.h>
-#include <mmc.h>
 #include <part_efi.h>
 #include <exports.h>
 #include <linux/ctype.h>
@@ -122,7 +121,7 @@
 	int errno = 0;
 	uint64_t size_ll, start_ll;
 
-	debug("%s: MMC lba num: 0x%x %d\n", __func__,
+	debug("%s:  lba num: 0x%x %d\n", __func__,
 	      (unsigned int)dev_desc->lba, (unsigned int)dev_desc->lba);
 
 	if (str_part == NULL)
@@ -235,25 +234,18 @@
 	return errno;
 }
 
-static int gpt_mmc_default(int dev, const char *str_part)
+static int gpt_default(block_dev_desc_t *blk_dev_desc, const char *str_part)
 {
 	int ret;
 	char *str_disk_guid;
 	u8 part_count = 0;
 	disk_partition_t *partitions = NULL;
 
-	struct mmc *mmc = find_mmc_device(dev);
-
-	if (mmc == NULL) {
-		printf("%s: mmc dev %d NOT available\n", __func__, dev);
-		return CMD_RET_FAILURE;
-	}
-
 	if (!str_part)
 		return -1;
 
 	/* fill partitions */
-	ret = set_gpt_info(&mmc->block_dev, str_part,
+	ret = set_gpt_info(blk_dev_desc, str_part,
 			&str_disk_guid, &partitions, &part_count);
 	if (ret) {
 		if (ret == -1)
@@ -266,7 +258,7 @@
 	}
 
 	/* save partitions layout to disk */
-	gpt_restore(&mmc->block_dev, str_disk_guid, partitions, part_count);
+	gpt_restore(blk_dev_desc, str_disk_guid, partitions, part_count);
 	free(str_disk_guid);
 	free(partitions);
 
@@ -287,27 +279,28 @@
 {
 	int ret = CMD_RET_SUCCESS;
 	int dev = 0;
-	char *pstr;
+	char *ep;
+	block_dev_desc_t *blk_dev_desc;
 
 	if (argc < 5)
 		return CMD_RET_USAGE;
 
 	/* command: 'write' */
 	if ((strcmp(argv[1], "write") == 0) && (argc == 5)) {
-		/* device: 'mmc' */
-		if (strcmp(argv[2], "mmc") == 0) {
-			/* check if 'dev' is a number */
-			for (pstr = argv[3]; *pstr != '\0'; pstr++)
-				if (!isdigit(*pstr)) {
-					printf("'%s' is not a number\n",
-						argv[3]);
-					return CMD_RET_USAGE;
-				}
-			dev = (int)simple_strtoul(argv[3], NULL, 10);
-			/* write to mmc */
-			if (gpt_mmc_default(dev, argv[4]))
-				return CMD_RET_FAILURE;
+		dev = (int)simple_strtoul(argv[3], &ep, 10);
+		if (!ep || ep[0] != '\0') {
+			printf("'%s' is not a number\n", argv[3]);
+			return CMD_RET_USAGE;
 		}
+		blk_dev_desc = get_dev(argv[2], dev);
+		if (!blk_dev_desc) {
+			printf("%s: %s dev %d NOT available\n",
+			       __func__, argv[2], dev);
+			return CMD_RET_FAILURE;
+		}
+
+		if (gpt_default(blk_dev_desc, argv[4]))
+			return CMD_RET_FAILURE;
 	} else {
 		return CMD_RET_USAGE;
 	}