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fs: fatwrite: use map_sysmem before use file_fat_write

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When the map_sysmem, then the fatwrite command can support sandbox.
Following command will show how to use it:
  => sb bind 0 sd.img
  => fatls host 0
  => fatwrite host 0 $memaddr filename $filesize

Signed-off-by: Josh Wu <josh.wu@atmel.com>
Acked-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Wu, Josh 2014-06-04 11:01:24 +08:00 committed by Tom Rini
parent 97cb4e5450
commit 31e997f921
1 changed files with 5 additions and 1 deletions
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6
common/cmd_fat.c
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@ -13,6 +13,7 @@
#include <s_record.h>
#include <net.h>
#include <ata.h>
#include <asm/io.h>
#include <part.h>
#include <fat.h>
#include <fs.h>
@ -93,6 +94,7 @@ static int do_fat_fswrite(cmd_tbl_t *cmdtp, int flag,
disk_partition_t info;
int dev = 0;
int part = 1;
void *buf;
if (argc < 5)
return cmd_usage(cmdtp);
@ -111,7 +113,9 @@ static int do_fat_fswrite(cmd_tbl_t *cmdtp, int flag,
addr = simple_strtoul(argv[3], NULL, 16);
count = simple_strtoul(argv[5], NULL, 16);
size = file_fat_write(argv[4], (void *)addr, count);
buf = map_sysmem(addr, count);
size = file_fat_write(argv[4], buf, count);
unmap_sysmem(buf);
if (size == -1) {
printf("\n** Unable to write \"%s\" from %s %d:%d **\n",
argv[4], argv[1], dev, part);