daa627d03a
Add support for booting from a script loaded over FEL. This mirrors the bootcmd_fel provided by distro boot. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
86 lines
1.8 KiB
C
86 lines
1.8 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Bootmethod for sunxi FEL loading
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*
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* Copyright 2024 Google LLC
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* Written by Simon Glass <sjg@chromium.org>
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*/
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#define LOG_CATEGORY UCLASS_BOOTSTD
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#include <bootdev.h>
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#include <bootflow.h>
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#include <bootmeth.h>
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#include <command.h>
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#include <dm.h>
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#include <env.h>
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static int fel_check(struct udevice *dev, struct bootflow_iter *iter)
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{
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return 0;
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}
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static int fel_read_bootflow(struct udevice *dev, struct bootflow *bflow)
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{
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if (!env_get("fel_booted") || !env_get("fel_scriptaddr"))
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return -ENOENT;
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bflow->name = strdup("fel-script");
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if (!bflow->name)
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return log_msg_ret("fel", -ENOMEM);
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bflow->state = BOOTFLOWST_READY;
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return 0;
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}
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static int fel_read_file(struct udevice *dev, struct bootflow *bflow,
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const char *file_path, ulong addr,
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enum bootflow_img_t type, ulong *sizep)
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{
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return -ENOSYS;
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}
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static int fel_boot(struct udevice *dev, struct bootflow *bflow)
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{
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ulong addr;
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int ret;
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addr = env_get_hex("fel_scriptaddr", 0);
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ret = cmd_source_script(addr, NULL, NULL);
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if (ret)
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return log_msg_ret("boot", ret);
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return 0;
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}
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static int fel_bootmeth_bind(struct udevice *dev)
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{
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struct bootmeth_uc_plat *plat = dev_get_uclass_plat(dev);
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plat->desc = IS_ENABLED(CONFIG_BOOTSTD_FULL) ?
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"Sunxi FEL boot over USB" : "FEL";
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plat->flags = BOOTMETHF_GLOBAL;
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return 0;
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}
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static struct bootmeth_ops fel_bootmeth_ops = {
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.check = fel_check,
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.read_bootflow = fel_read_bootflow,
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.read_file = fel_read_file,
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.boot = fel_boot,
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};
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static const struct udevice_id fel_bootmeth_ids[] = {
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{ .compatible = "u-boot,fel-bootmeth" },
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{ }
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};
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U_BOOT_DRIVER(bootmeth_2fel) = {
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.name = "bootmeth_fel",
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.id = UCLASS_BOOTMETH,
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.of_match = fel_bootmeth_ids,
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.ops = &fel_bootmeth_ops,
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.bind = fel_bootmeth_bind,
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};
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