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eacc261178
We need extensions to be set up before we start trying to boot any of the bootdevs. Add a new priority before all the others for tht sort of thing. Also add a 'none' option, so that the first one is not 0. While we are here, comment enum bootdev_prio_t fully and expand the test for the 'bootdev hunt' command. Signed-off-by: Simon Glass <sjg@chromium.org>
83 lines
1.6 KiB
C
83 lines
1.6 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Read a bootflow from SPI flash
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*
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* Copyright 2022 Google LLC
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*/
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#include <common.h>
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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 <dm.h>
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#include <env.h>
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#include <malloc.h>
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#include <spi_flash.h>
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static int sf_get_bootflow(struct udevice *dev, struct bootflow_iter *iter,
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struct bootflow *bflow)
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{
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struct udevice *sf = dev_get_parent(dev);
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uint size;
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char *buf;
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int ret;
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/* We only support the whole device, not partitions */
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if (iter->part)
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return log_msg_ret("max", -ESHUTDOWN);
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size = env_get_hex("script_size_f", 0);
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if (!size)
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return log_msg_ret("sz", -EINVAL);
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buf = malloc(size + 1);
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if (!buf)
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return log_msg_ret("buf", -ENOMEM);
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ret = spi_flash_read_dm(sf, env_get_hex("script_offset_f", 0),
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size, buf);
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if (ret)
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return log_msg_ret("cmd", -EINVAL);
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bflow->state = BOOTFLOWST_MEDIA;
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ret = bootmeth_set_bootflow(bflow->method, bflow, buf, size);
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if (ret) {
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free(buf);
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return log_msg_ret("method", ret);
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}
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return 0;
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}
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static int sf_bootdev_bind(struct udevice *dev)
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{
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struct bootdev_uc_plat *ucp = dev_get_uclass_plat(dev);
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ucp->prio = BOOTDEVP_4_SCAN_FAST;
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return 0;
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}
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struct bootdev_ops sf_bootdev_ops = {
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.get_bootflow = sf_get_bootflow,
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};
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static const struct udevice_id sf_bootdev_ids[] = {
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{ .compatible = "u-boot,bootdev-sf" },
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{ }
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};
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U_BOOT_DRIVER(sf_bootdev) = {
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.name = "sf_bootdev",
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.id = UCLASS_BOOTDEV,
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.ops = &sf_bootdev_ops,
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.bind = sf_bootdev_bind,
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.of_match = sf_bootdev_ids,
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};
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BOOTDEV_HUNTER(sf_bootdev_hunter) = {
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.prio = BOOTDEVP_4_SCAN_FAST,
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.uclass = UCLASS_SPI_FLASH,
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.drv = DM_DRIVER_REF(sf_bootdev),
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};
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