In this patch, fatwrite command is extended so as to accept an additional
parameter of file offset.
Signed-off-by: AKASHI Takahiro <takahiro.aka...@linaro.org>
---
cmd/fat.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/cmd/fat.c b/cmd/fat.c
index 03de5d11af..2a5f7bfc26 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'"
);
--
2.17.0
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