mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-28 15:41:40 +00:00
8311ac5fe0
It's almost no extra code to hook up a buddy to the 'read' command. In fact, since the command is passed its own 'struct cmd_tbl', we can use the exact same callback, and let it figure out for itself whether it was invoked as "read" or "write". Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
81 lines
1.7 KiB
C
81 lines
1.7 KiB
C
/*
|
|
* Copyright (c) 2011 The Chromium OS Authors. All rights reserved.
|
|
* Use of this source code is governed by a BSD-style license that can be
|
|
* found in the LICENSE file.
|
|
*
|
|
* Alternatively, this software may be distributed under the terms of the
|
|
* GNU General Public License ("GPL") version 2 as published by the Free
|
|
* Software Foundation.
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <command.h>
|
|
#include <mapmem.h>
|
|
#include <part.h>
|
|
|
|
static int
|
|
do_rw(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
|
|
{
|
|
struct blk_desc *dev_desc = NULL;
|
|
struct disk_partition part_info;
|
|
ulong offset, limit;
|
|
uint blk, cnt, res;
|
|
void *addr;
|
|
int part;
|
|
|
|
if (argc != 6) {
|
|
cmd_usage(cmdtp);
|
|
return 1;
|
|
}
|
|
|
|
part = part_get_info_by_dev_and_name_or_num(argv[1], argv[2],
|
|
&dev_desc, &part_info, 1);
|
|
if (part < 0)
|
|
return 1;
|
|
|
|
addr = map_sysmem(hextoul(argv[3], NULL), 0);
|
|
blk = hextoul(argv[4], NULL);
|
|
cnt = hextoul(argv[5], NULL);
|
|
|
|
if (part > 0) {
|
|
offset = part_info.start;
|
|
limit = part_info.size;
|
|
} else {
|
|
/* Largest address not available in struct blk_desc. */
|
|
offset = 0;
|
|
limit = ~0;
|
|
}
|
|
|
|
if (cnt + blk > limit) {
|
|
printf("%s out of range\n", cmdtp->name);
|
|
return 1;
|
|
}
|
|
|
|
if (IS_ENABLED(CONFIG_CMD_WRITE) && !strcmp(cmdtp->name, "write"))
|
|
res = blk_dwrite(dev_desc, offset + blk, cnt, addr);
|
|
else
|
|
res = blk_dread(dev_desc, offset + blk, cnt, addr);
|
|
|
|
if (res != cnt) {
|
|
printf("%s error\n", cmdtp->name);
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
#ifdef CONFIG_CMD_READ
|
|
U_BOOT_CMD(
|
|
read, 6, 0, do_rw,
|
|
"Load binary data from a partition",
|
|
"<interface> <dev[:part|#partname]> addr blk# cnt"
|
|
);
|
|
#endif
|
|
|
|
#ifdef CONFIG_CMD_WRITE
|
|
U_BOOT_CMD(
|
|
write, 6, 0, do_rw,
|
|
"Store binary data to a partition",
|
|
"<interface> <dev[:part|#partname]> addr blk# cnt"
|
|
);
|
|
#endif
|