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authorStephen Warren <swarren@nvidia.com>2012-09-21 09:50:57 +0000
committerTom Rini <trini@ti.com>2012-09-25 14:58:48 -0700
commit10a37fd7a40826c43a63591855346adf1a1ac02d (patch)
treebfe36ab5ea3f539433740e271ba6e5215b5a43a1 /common
parent2023e60861283ee808950a558e14b45be8776bf4 (diff)
disk: get_device_and_partition() "auto" partition and cleanup
Rework get_device_and_partition() to: a) Implement a new partition ID of "auto", which requests that U-Boot search for the first "bootable" partition, and fall back to the first valid partition if none is found. This way, users don't need to specify an explicit partition in their commands. b) Make use of get_device(). c) Add parameter to indicate whether returning a whole device is acceptable, or whether a partition is mandatory. d) Make error-checking of the user's device-/partition-specification more complete. In particular, if strtoul() doesn't convert all characters, it's an error rather than just ignored. The resultant device/partition returned by the function will be as follows, based on whether the disk has a partition table (ptable) or not, and whether the calling command allows the whole device to be returned or not. (D and P are integers, P >= 1) D D: No ptable: !allow_whole_dev: error allow_whole_dev: device D ptable: device D partition 1 D:0 !allow_whole_dev: error allow_whole_dev: device D D:P No ptable: error ptable: device D partition P D:auto No ptable: !allow_whole_dev: error allow_whole_dev: device D ptable: first partition in device D with bootable flag set. If none, first valid paratition in device D. Note: In order to review this patch, it's probably easiest to simply look at the file contents post-application, rather than reading the patch itself. Signed-off-by: Rob Herring <rob.herring@calxeda.com> [swarren: Rob implemented scanning for bootable partitions. I fixed a couple of issues there, switched the syntax to ":auto", added the error-checking rework, and ":0" syntax for the whole device] Signed-off-by: Stephen Warren <swarren@nvidia.com>
Diffstat (limited to 'common')
-rw-r--r--common/cmd_disk.c2
-rw-r--r--common/cmd_ext4.c2
-rw-r--r--common/cmd_ext_common.c4
-rw-r--r--common/cmd_fat.c8
-rw-r--r--common/cmd_reiser.c4
-rw-r--r--common/cmd_zfs.c4
6 files changed, 12 insertions, 12 deletions
diff --git a/common/cmd_disk.c b/common/cmd_disk.c
index 8df93444df0..ee4e21551b1 100644
--- a/common/cmd_disk.c
+++ b/common/cmd_disk.c
@@ -54,7 +54,7 @@ int common_diskboot(cmd_tbl_t *cmdtp, const char *intf, int argc,
bootstage_mark(BOOTSTAGE_ID_IDE_BOOT_DEVICE);
part = get_device_and_partition(intf, (argc == 3) ? argv[2] : NULL,
- &dev_desc, &info);
+ &dev_desc, &info, 1);
if (part < 0) {
bootstage_error(BOOTSTAGE_ID_IDE_TYPE);
return 1;
diff --git a/common/cmd_ext4.c b/common/cmd_ext4.c
index 48f9ba314cc..ca4656184cb 100644
--- a/common/cmd_ext4.c
+++ b/common/cmd_ext4.c
@@ -87,7 +87,7 @@ int do_ext4_write(cmd_tbl_t *cmdtp, int flag, int argc,
if (argc < 6)
return cmd_usage(cmdtp);
- part = get_device_and_partition(argv[1], argv[2], &dev_desc, &info);
+ part = get_device_and_partition(argv[1], argv[2], &dev_desc, &info, 1);
if (part < 0)
return 1;
diff --git a/common/cmd_ext_common.c b/common/cmd_ext_common.c
index 7d26944ead2..1952f4d1e14 100644
--- a/common/cmd_ext_common.c
+++ b/common/cmd_ext_common.c
@@ -108,7 +108,7 @@ int do_ext_load(cmd_tbl_t *cmdtp, int flag, int argc,
return 1;
}
- part = get_device_and_partition(argv[1], argv[2], &dev_desc, &info);
+ part = get_device_and_partition(argv[1], argv[2], &dev_desc, &info, 1);
if (part < 0)
return 1;
@@ -166,7 +166,7 @@ int do_ext_ls(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
if (argc < 2)
return cmd_usage(cmdtp);
- part = get_device_and_partition(argv[1], argv[2], &dev_desc, &info);
+ part = get_device_and_partition(argv[1], argv[2], &dev_desc, &info, 1);
if (part < 0)
return 1;
diff --git a/common/cmd_fat.c b/common/cmd_fat.c
index 90412d6233a..01e02f5b2bb 100644
--- a/common/cmd_fat.c
+++ b/common/cmd_fat.c
@@ -49,7 +49,7 @@ int do_fat_fsload (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
return 1;
}
- part = get_device_and_partition(argv[1], argv[2], &dev_desc, &info);
+ part = get_device_and_partition(argv[1], argv[2], &dev_desc, &info, 1);
if (part < 0)
return 1;
@@ -101,7 +101,7 @@ int do_fat_ls (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
return 0;
}
- part = get_device_and_partition(argv[1], argv[2], &dev_desc, &info);
+ part = get_device_and_partition(argv[1], argv[2], &dev_desc, &info, 1);
if (part < 0)
return 1;
@@ -139,7 +139,7 @@ int do_fat_fsinfo (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
return 0;
}
- part = get_device_and_partition(argv[1], argv[2], &dev_desc, &info);
+ part = get_device_and_partition(argv[1], argv[2], &dev_desc, &info, 1);
if (part < 0)
return 1;
@@ -175,7 +175,7 @@ static int do_fat_fswrite(cmd_tbl_t *cmdtp, int flag,
if (argc < 5)
return cmd_usage(cmdtp);
- part = get_device_and_partition(argv[1], argv[2], &dev_desc, &info);
+ part = get_device_and_partition(argv[1], argv[2], &dev_desc, &info, 1);
if (part < 0)
return 1;
diff --git a/common/cmd_reiser.c b/common/cmd_reiser.c
index 2865014463d..e658618c6d0 100644
--- a/common/cmd_reiser.c
+++ b/common/cmd_reiser.c
@@ -57,7 +57,7 @@ int do_reiserls (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
if (argc < 3)
return CMD_RET_USAGE;
- part = get_device_and_partition(argv[1], argv[2], &dev_desc, &info);
+ part = get_device_and_partition(argv[1], argv[2], &dev_desc, &info, 1);
if (part < 0)
return 1;
@@ -140,7 +140,7 @@ int do_reiserload (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
return 1;
}
- part = get_device_and_partition(argv[1], argv[2], &dev_desc, &info);
+ part = get_device_and_partition(argv[1], argv[2], &dev_desc, &info, 1);
if (part < 0)
return 1;
diff --git a/common/cmd_zfs.c b/common/cmd_zfs.c
index 27f88563d72..d580f7bca06 100644
--- a/common/cmd_zfs.c
+++ b/common/cmd_zfs.c
@@ -94,7 +94,7 @@ static int do_zfs_load(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
return 1;
}
- part = get_device_and_partition(argv[1], argv[2], &dev_desc, &info);
+ part = get_device_and_partition(argv[1], argv[2], &dev_desc, &info, 1);
if (part < 0)
return 1;
@@ -160,7 +160,7 @@ static int do_zfs_ls(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
if (argc == 4)
filename = argv[3];
- part = get_device_and_partition(argv[1], argv[2], &dev_desc, &info);
+ part = get_device_and_partition(argv[1], argv[2], &dev_desc, &info, 1);
if (part < 0)
return 1;