added ext2info command

Added rudimentary partition info command.
It prints currently only basic MBR info.

1 files changed, 64 insertions, 0 deletions

diff --git a/common/cmd_ext2.c b/common/cmd_ext2.c
index b7e4048d6..e37b2b633 100644
--- a/common/cmd_ext2.c
+++ b/common/cmd_ext2.c
@@ -260,3 +260,67 @@ U_BOOT_CMD(
 	"    - load binary file 'filename' from 'dev' on 'interface'\n"
 	"      to address 'addr' from ext2 filesystem"
 );
+
+/*
+ * Ext2fs part info
+ */
+static int do_ext2info(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+	int i;
+	int dev=0;
+	int part=0;
+	int startpart, endpart;
+	char *ep;
+	disk_partition_t info;
+	block_dev_desc_t *dev_desc=NULL;
+
+	if (argc < 3) {
+		cmd_usage(cmdtp);
+		return 1;
+	}
+	dev = (int)simple_strtoul (argv[2], &ep, 16);
+	dev_desc = get_dev(argv[1],dev);
+
+	if (dev_desc == NULL) {
+		printf ("\n** Block device %s %d not supported\n",
+				argv[1], dev);
+		return 1;
+	}
+
+	if (*ep) {
+		if (*ep != ':') {
+			puts ("\n** Invalid device, use `dev[:part]' **\n");
+			return 1;
+		}
+		part = (int)simple_strtoul(++ep, NULL, 16);
+	}
+
+	printf("part: name	type	start	blocks	blksize	MiB\n");
+	if (part == 0) {
+		startpart = 1;
+		endpart = 4;
+	} else {
+		startpart = part;
+		endpart = part;
+	}
+	for (i = startpart; i <= endpart; i++) {
+		if (get_partition_info (dev_desc, i, &info)) {
+				printf ("** Bad partition %d **\n", i);
+				return 1;
+		}
+
+		printf("%3d : %s\t%s\t%lu\t%lu\t%d\t%lu\n", i, info.name,
+			info.type, info.start, info.size, info.blksz,
+			(unsigned long long)
+			(info.blksz * info.size) >> 20);
+	}
+
+	return 0;
+}
+
+U_BOOT_CMD(
+	ext2info,	3,	1,	do_ext2info,
+	"print partition info",
+	"<interface> <dev[:part]>\n"
+	"    - print partition table info\n"
+);