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efi: Add a bootdev for EFI media

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Bootstd needs a driver so that it can scan EFI media within the EFI app.
Add one.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass
2025-05-17 12:27:25 +02:00
parent d28d37fd25
commit 538deb46b7
1 changed files with 30 additions and 0 deletions
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30
drivers/block/efi_blk.c
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@@ -9,6 +9,7 @@
*/ */
#include <blk.h> #include <blk.h>
#include <bootdev.h>
#include <dm.h> #include <dm.h>
#include <efi.h> #include <efi.h>
#include <efi_api.h> #include <efi_api.h>
@@ -79,6 +80,31 @@ static const struct blk_ops efi_blk_ops = {
.write = efi_bl_write, .write = efi_bl_write,
}; };
static int efi_bootdev_bind(struct udevice *dev)
{
struct bootdev_uc_plat *ucp = dev_get_uclass_plat(dev);
ucp->prio = BOOTDEVP_3_INTERNAL_SLOW;
return 0;
}
struct bootdev_ops efi_bootdev_ops = {
};
static const struct udevice_id efi_bootdev_ids[] = {
{ .compatible = "u-boot,bootdev-efi" },
{ }
};
U_BOOT_DRIVER(efi_bootdev) = {
.name = "efi_bootdev",
.id = UCLASS_BOOTDEV,
.ops = &efi_bootdev_ops,
.bind = efi_bootdev_bind,
.of_match = efi_bootdev_ids,
};
U_BOOT_DRIVER(efi_block) = { U_BOOT_DRIVER(efi_block) = {
.name = "efi_block", .name = "efi_block",
.id = UCLASS_BLK, .id = UCLASS_BLK,
@@ -103,6 +129,10 @@ static int efi_media_bind(struct udevice *dev)
blk_plat = dev_get_plat(blk); blk_plat = dev_get_plat(blk);
blk_plat->blkio = plat->blkio; blk_plat->blkio = plat->blkio;
ret = bootdev_setup_for_sibling_blk(blk, "efi_bootdev");
if (ret)
return log_msg_ret("emb", ret);
return 0; return 0;
} }