diff options
| author | AKASHI Takahiro | 2018-09-11 15:59:07 +0900 |
|---|---|---|
| committer | Alexander Graf | 2018-09-23 21:55:29 +0200 |
| commit | cda40b2aea39ec05683a2895f31c630ef2ce5131 (patch) | |
| tree | 65f1979811c893820065a39d348c32449b3dfe21 /cmd/fat.c | |
| parent | cb8af8af5ba03ae8e0a7315b66bfcc46d5c55627 (diff) | |
cmd: fat: add offset parameter to fatwrite
In this patch, fatwrite command is extended so as to accept an additional
parameter of file offset.
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'cmd/fat.c')
| -rw-r--r-- | cmd/fat.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/cmd/fat.c b/cmd/fat.c index 03de5d11afb..2a5f7bfc269 100644 --- a/cmd/fat.c +++ b/cmd/fat.c @@ -104,6 +104,7 @@ static int do_fat_fswrite(cmd_tbl_t *cmdtp, int flag, int ret; unsigned long addr; unsigned long count; + long offset; struct blk_desc *dev_desc = NULL; disk_partition_t info; int dev = 0; @@ -126,9 +127,11 @@ static int do_fat_fswrite(cmd_tbl_t *cmdtp, int flag, } addr = simple_strtoul(argv[3], NULL, 16); count = (argc <= 5) ? 0 : simple_strtoul(argv[5], NULL, 16); + /* offset should be a hex, but "-1" is allowed */ + offset = (argc <= 6) ? 0 : simple_strtol(argv[6], NULL, 16); buf = map_sysmem(addr, count); - ret = file_fat_write(argv[4], buf, 0, count, &size); + ret = file_fat_write(argv[4], buf, offset, count, &size); unmap_sysmem(buf); if (ret < 0) { printf("\n** Unable to write \"%s\" from %s %d:%d **\n", @@ -142,9 +145,9 @@ static int do_fat_fswrite(cmd_tbl_t *cmdtp, int flag, } U_BOOT_CMD( - fatwrite, 6, 0, do_fat_fswrite, + fatwrite, 7, 0, do_fat_fswrite, "write file into a dos filesystem", - "<interface> <dev[:part]> <addr> <filename> [<bytes>]\n" + "<interface> <dev[:part]> <addr> <filename> [<bytes> [<offset>]]\n" " - write file 'filename' from the address 'addr' in RAM\n" " to 'dev' on 'interface'" ); |