u-boot.git/lib/efi_loader/efi_var_sf.c, branch mainUnnamed repository; edit this file 'description' to name the repository.http://cgit.235523.xyz/u-boot.git/atom/lib/efi_loader/efi_var_sf.c?h=main2026-04-17T05:40:17Zefi_loader: efi_var_sf: Do not fail on blank SPI Flash2026-04-17T05:40:17ZMichal Simekmichal.simek@amd.com2026-03-19T07:15:07Zurn:sha1:57eae396ec91729d5655c26456f8ac3bac439202
When SPI Flash is blank (first boot or erased), efi_var_from_storage()
returns EFI_DEVICE_ERROR because efi_var_restore() fails on invalid
magic/CRC. This prevents the EFI subsystem from initializing.
Check the magic value before attempting to restore variables. If
the magic does not match EFI_VAR_FILE_MAGIC, treat it as an empty
store and return EFI_SUCCESS, matching the behavior of the file-based
efi_var_file.c which deliberately returns EFI_SUCCESS on missing or
corrupted variable files to avoid blocking the boot process.
Similarly, if the magic matches but efi_var_restore() fails (e.g.
corrupted CRC), log the error but still return EFI_SUCCESS.
Suggested-by: John Toomey <john.toomey@amd.com>
Signed-off-by: Michal Simek <michal.simek@amd.com>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
efi_vars: Implement SPI Flash store2026-03-14T07:15:09ZShantur Rathorei@shantur.com2026-03-13T15:45:27Zurn:sha1:5c83372fa6ed78e63d087c423281799758323335
Currently U-Boot uses ESP as storage for EFI variables.
Devices with SPI Flash are used for storing environment with this
commit we allow EFI variables to be stored on SPI Flash.
Signed-off-by: Shantur Rathore <i@shantur.com>
Signed-off-by: Michal Simek <michal.simek@amd.com>
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on AML-S905D3-CC
Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>