u-boot/drivers/scsi/scsi_bootdev.c
Simon Glass eacc261178 bootstd: Add a new pre-scan priority for bootdevs
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>
2023-01-23 18:11:41 -05:00

62 lines
1.1 KiB
C

// SPDX-License-Identifier: GPL-2.0+
/*
* Bootdevice for USB
*
* Copyright 2021 Google LLC
* Written by Simon Glass <sjg@chromium.org>
*/
#include <common.h>
#include <bootdev.h>
#include <dm.h>
#include <init.h>
#include <scsi.h>
static int scsi_bootdev_bind(struct udevice *dev)
{
struct bootdev_uc_plat *ucp = dev_get_uclass_plat(dev);
ucp->prio = BOOTDEVP_4_SCAN_FAST;
return 0;
}
static int scsi_bootdev_hunt(struct bootdev_hunter *info, bool show)
{
int ret;
if (IS_ENABLED(CONFIG_PCI)) {
ret = pci_init();
if (ret)
return log_msg_ret("pci", ret);
}
ret = scsi_scan(true);
if (ret)
return log_msg_ret("scs", ret);
return 0;
}
struct bootdev_ops scsi_bootdev_ops = {
};
static const struct udevice_id scsi_bootdev_ids[] = {
{ .compatible = "u-boot,bootdev-scsi" },
{ }
};
U_BOOT_DRIVER(scsi_bootdev) = {
.name = "scsi_bootdev",
.id = UCLASS_BOOTDEV,
.ops = &scsi_bootdev_ops,
.bind = scsi_bootdev_bind,
.of_match = scsi_bootdev_ids,
};
BOOTDEV_HUNTER(scsi_bootdev_hunter) = {
.prio = BOOTDEVP_4_SCAN_FAST,
.uclass = UCLASS_SCSI,
.hunt = scsi_bootdev_hunt,
.drv = DM_DRIVER_REF(scsi_bootdev),
};