80 lines
2.4 KiB
C
80 lines
2.4 KiB
C
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/*
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* Copyright (c) 2018 The Fuchsia Authors
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include <common.h>
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#include <kvstore.h>
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#include <amlogic/storage_if.h>
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#include <zircon/sysconfig.h>
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static int do_zircon_bootconfig(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
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{
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const char* sysconfig;
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const char* zircon_a;
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const char* zircon_b;
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const char* zircon_r;
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const char* zircon_boot;
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struct kvstore kvs;
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int rc;
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if (argc != 5) {
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return -1;
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}
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sysconfig = argv[1];
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zircon_a = argv[2];
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zircon_b = argv[3];
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zircon_r = argv[4];
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uint8_t buffer[ZX_SYSCONFIG_KVSTORE_SIZE];
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rc = kvs_load(&kvs, buffer, sizeof(buffer));
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if (rc < 0) {
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rc = store_read_ops((unsigned char*)sysconfig, buffer, ZX_SYSCONFIG_BOOT_DEFAULT_OFFSET,
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sizeof(buffer));
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if (rc) {
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printf("do_sysconfig: store_read_ops failed for %s\n", sysconfig);
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return 0;
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}
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rc = kvs_load(&kvs, buffer, sizeof(buffer));
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if (rc < 0) {
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printf("do_sysconfig: kvs_load failed for %s (%d)\n", sysconfig, rc);
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return 0;
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}
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}
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const char* boot_part = kvs_get(&kvs, "boot", NULL);
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if (!boot_part) {
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printf("boot partition not set\n");
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return -1;
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}
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if (!strcmp(boot_part, "a")) {
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zircon_boot = zircon_a;
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} else if (!strcmp(boot_part, "b")) {
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zircon_boot = zircon_b;
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} else if (!strcmp(boot_part, "r")) {
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zircon_boot = zircon_r;
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} else {
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printf("invalid boot partition %s, booting to recovery\n", boot_part);
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zircon_boot = zircon_r;
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}
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printf("zircon_bootconfig setting boot_part to %s\n", zircon_boot);
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setenv("boot_part", zircon_boot);
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return 0;
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}
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U_BOOT_CMD(
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zircon_bootconfig, 5, 0, do_zircon_bootconfig,
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"sets Zircon boot partition based on information in sysconfig partition",
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" argv: zircon_bootconfig <sysconfig partition> <Zircon-A partition> "
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"<Zircon-B partition> <Zircon-R partition>\n"
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" This command reads the Zircon boot configuration from partition <sysconfig partition>,\n"
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" The environment variable \"boot_part\" is set to one of the partition names\n"
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" <Zircon-A partition>, <Zircon-B partition> or <Zircon-R partition> based on the\n"
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" configuration in the sysconfig partition.\n"
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);
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