usb: write command for RAW partition.
This patch implements write support to usb device with raw partition.
It will be useful for filesystem write support to usb device from
u-boot in future.
Tested with writing kernel image to raw usb disk & booting with usb
read command into ram.
[Note: run usb part to get info about start sector & number of
sectors on a partition for usb write operation.]
Signed-off-by: Mahavir Jain <mjain@marvell.com>
diff --git a/common/cmd_usb.c b/common/cmd_usb.c
index 1e297d5..9de515c 100644
--- a/common/cmd_usb.c
+++ b/common/cmd_usb.c
@@ -642,6 +642,28 @@
return 1;
}
}
+ if (strcmp(argv[1], "write") == 0) {
+ if (usb_stor_curr_dev < 0) {
+ printf("no current device selected\n");
+ return 1;
+ }
+ if (argc == 5) {
+ unsigned long addr = simple_strtoul(argv[2], NULL, 16);
+ unsigned long blk = simple_strtoul(argv[3], NULL, 16);
+ unsigned long cnt = simple_strtoul(argv[4], NULL, 16);
+ unsigned long n;
+ printf("\nUSB write: device %d block # %ld, count %ld"
+ " ... ", usb_stor_curr_dev, blk, cnt);
+ stor_dev = usb_stor_get_dev(usb_stor_curr_dev);
+ n = stor_dev->block_write(usb_stor_curr_dev, blk, cnt,
+ (ulong *)addr);
+ printf("%ld blocks write: %s\n", n,
+ (n == cnt) ? "OK" : "ERROR");
+ if (n == cnt)
+ return 0;
+ return 1;
+ }
+ }
if (strncmp(argv[1], "dev", 3) == 0) {
if (argc == 3) {
int dev = (int)simple_strtoul(argv[2], NULL, 10);
@@ -687,6 +709,8 @@
" devices\n"
"usb read addr blk# cnt - read `cnt' blocks starting at block `blk#'\n"
" to memory address `addr'"
+ "usb write addr blk# cnt - write `cnt' blocks starting at block `blk#'\n"
+ " from memory address `addr'"
);