[U-Boot] [PATCH v2] 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 --- v1 -> v2: remove the type cast for the addr.
common/cmd_fat.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
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 @@ 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);

On 3 June 2014 21:01, Josh Wu josh.wu@atmel.com wrote:
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

On Wed, Jun 04, 2014 at 11:01:24AM +0800, Wu, Josh wrote:
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
Applied to u-boot/master, thanks!
participants (3)
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Josh Wu
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Simon Glass
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Tom Rini