fs: fatwrite: use map_sysmem before use file_fat_write
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>
diff --git a/common/cmd_fat.c b/common/cmd_fat.c
index a12d8fa..fbe3346 100644
--- a/common/cmd_fat.c
+++ b/common/cmd_fat.c
@@ -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 @@
disk_partition_t info;
int dev = 0;
int part = 1;
+ void *buf;
if (argc < 5)
return cmd_usage(cmdtp);
@@ -111,7 +113,9 @@
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);