mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-17 18:28:55 +00:00
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>
82 lines
1.6 KiB
C
82 lines
1.6 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Read a bootflow from SPI flash
|
|
*
|
|
* Copyright 2022 Google LLC
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <bootdev.h>
|
|
#include <bootflow.h>
|
|
#include <bootmeth.h>
|
|
#include <dm.h>
|
|
#include <env.h>
|
|
#include <malloc.h>
|
|
#include <spi_flash.h>
|
|
|
|
static int sf_get_bootflow(struct udevice *dev, struct bootflow_iter *iter,
|
|
struct bootflow *bflow)
|
|
{
|
|
struct udevice *sf = dev_get_parent(dev);
|
|
uint size;
|
|
char *buf;
|
|
int ret;
|
|
|
|
/* We only support the whole device, not partitions */
|
|
if (iter->part)
|
|
return log_msg_ret("max", -ESHUTDOWN);
|
|
|
|
size = env_get_hex("script_size_f", 0);
|
|
if (!size)
|
|
return log_msg_ret("sz", -EINVAL);
|
|
|
|
buf = malloc(size + 1);
|
|
if (!buf)
|
|
return log_msg_ret("buf", -ENOMEM);
|
|
|
|
ret = spi_flash_read_dm(sf, env_get_hex("script_offset_f", 0),
|
|
size, buf);
|
|
if (ret)
|
|
return log_msg_ret("cmd", -EINVAL);
|
|
bflow->state = BOOTFLOWST_MEDIA;
|
|
|
|
ret = bootmeth_set_bootflow(bflow->method, bflow, buf, size);
|
|
if (ret) {
|
|
free(buf);
|
|
return log_msg_ret("method", ret);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int sf_bootdev_bind(struct udevice *dev)
|
|
{
|
|
struct bootdev_uc_plat *ucp = dev_get_uclass_plat(dev);
|
|
|
|
ucp->prio = BOOTDEVP_4_SCAN_FAST;
|
|
|
|
return 0;
|
|
}
|
|
|
|
struct bootdev_ops sf_bootdev_ops = {
|
|
.get_bootflow = sf_get_bootflow,
|
|
};
|
|
|
|
static const struct udevice_id sf_bootdev_ids[] = {
|
|
{ .compatible = "u-boot,bootdev-sf" },
|
|
{ }
|
|
};
|
|
|
|
U_BOOT_DRIVER(sf_bootdev) = {
|
|
.name = "sf_bootdev",
|
|
.id = UCLASS_BOOTDEV,
|
|
.ops = &sf_bootdev_ops,
|
|
.bind = sf_bootdev_bind,
|
|
.of_match = sf_bootdev_ids,
|
|
};
|
|
|
|
BOOTDEV_HUNTER(sf_bootdev_hunter) = {
|
|
.prio = BOOTDEVP_4_SCAN_FAST,
|
|
.uclass = UCLASS_SPI_FLASH,
|
|
.drv = DM_DRIVER_REF(sf_bootdev),
|
|
};
|