mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-11 22:03:15 +00:00
53 lines
1.7 KiB
C
53 lines
1.7 KiB
C
|
// SPDX-License-Identifier: BSD-2-Clause
|
||
|
|
/*
|
||
|
|
* Copyright (C) 2017 The Android Open Source Project
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <android_ab.h>
|
||
|
|
#include <command.h>
|
||
|
|
|
||
|
|
static int do_ab_select(cmd_tbl_t *cmdtp, int flag, int argc,
|
||
|
|
char * const argv[])
|
||
|
|
{
|
||
|
|
int ret;
|
||
|
|
struct blk_desc *dev_desc;
|
||
|
|
disk_partition_t part_info;
|
||
|
|
char slot[2];
|
||
|
|
|
||
|
|
if (argc != 4)
|
||
|
|
return CMD_RET_USAGE;
|
||
|
|
|
||
|
|
/* Lookup the "misc" partition from argv[2] and argv[3] */
|
||
|
|
if (part_get_info_by_dev_and_name_or_num(argv[2], argv[3],
|
||
|
|
&dev_desc, &part_info) < 0) {
|
||
|
|
return CMD_RET_FAILURE;
|
||
|
|
}
|
||
|
|
|
||
|
|
ret = ab_select_slot(dev_desc, &part_info);
|
||
|
|
if (ret < 0) {
|
||
|
|
printf("Android boot failed, error %d.\n", ret);
|
||
|
|
return CMD_RET_FAILURE;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Android standard slot names are 'a', 'b', ... */
|
||
|
|
slot[0] = BOOT_SLOT_NAME(ret);
|
||
|
|
slot[1] = '\0';
|
||
|
|
env_set(argv[1], slot);
|
||
|
|
printf("ANDROID: Booting slot: %s\n", slot);
|
||
|
|
return CMD_RET_SUCCESS;
|
||
|
|
}
|
||
|
|
|
||
|
|
U_BOOT_CMD(ab_select, 4, 0, do_ab_select,
|
||
|
|
"Select the slot used to boot from and register the boot attempt.",
|
||
|
|
"<slot_var_name> <interface> <dev[:part|#part_name]>\n"
|
||
|
|
" - Load the slot metadata from the partition 'part' on\n"
|
||
|
|
" device type 'interface' instance 'dev' and store the active\n"
|
||
|
|
" slot in the 'slot_var_name' variable. This also updates the\n"
|
||
|
|
" Android slot metadata with a boot attempt, which can cause\n"
|
||
|
|
" successive calls to this function to return a different result\n"
|
||
|
|
" if the returned slot runs out of boot attempts.\n"
|
||
|
|
" - If 'part_name' is passed, preceded with a # instead of :, the\n"
|
||
|
|
" partition name whose label is 'part_name' will be looked up in\n"
|
||
|
|
" the partition table. This is commonly the \"misc\" partition.\n"
|
||
|
|
);
|