c263e21bcb
Move this into its own file so it can be built only by U-Boot proper. Signed-off-by: Simon Glass <sjg@chromium.org>
72 lines
1.7 KiB
C
72 lines
1.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/*
|
|
* Verified Boot for Embedded (VBE) vbe-simple common file
|
|
*
|
|
* Copyright 2022 Google LLC
|
|
* Written by Simon Glass <sjg@chromium.org>
|
|
*/
|
|
|
|
#ifndef __VBE_SIMPLE_H
|
|
#define __VBE_SIMPLE_H
|
|
|
|
enum {
|
|
MAX_VERSION_LEN = 256,
|
|
|
|
NVD_HDR_VER_SHIFT = 0,
|
|
NVD_HDR_VER_MASK = 0xf,
|
|
NVD_HDR_SIZE_SHIFT = 4,
|
|
NVD_HDR_SIZE_MASK = 0xf << NVD_HDR_SIZE_SHIFT,
|
|
|
|
/* Firmware key-version is in the top 16 bits of fw_ver */
|
|
FWVER_KEY_SHIFT = 16,
|
|
FWVER_FW_MASK = 0xffff,
|
|
|
|
NVD_HDR_VER_CUR = 1, /* current version */
|
|
};
|
|
|
|
/** struct simple_priv - information read from the device tree */
|
|
struct simple_priv {
|
|
u32 area_start;
|
|
u32 area_size;
|
|
u32 skip_offset;
|
|
u32 state_offset;
|
|
u32 state_size;
|
|
u32 version_offset;
|
|
u32 version_size;
|
|
const char *storage;
|
|
};
|
|
|
|
/** struct simple_state - state information read from media
|
|
*
|
|
* @fw_version: Firmware version string
|
|
* @fw_vernum: Firmware version number
|
|
*/
|
|
struct simple_state {
|
|
char fw_version[MAX_VERSION_LEN];
|
|
u32 fw_vernum;
|
|
};
|
|
|
|
/**
|
|
* vbe_simple_read_fw_bootflow() - Read a bootflow for firmware
|
|
*
|
|
* Locates and loads the firmware image (FIT) needed for the next phase. The FIT
|
|
* should ideally use external data, to reduce the amount of it that needs to be
|
|
* read.
|
|
*
|
|
* @bdev: bootdev device containing the firmwre
|
|
* @blow: Place to put the created bootflow, on success
|
|
* @return 0 if OK, -ve on error
|
|
*/
|
|
int vbe_simple_read_bootflow_fw(struct udevice *dev, struct bootflow *bflow);
|
|
|
|
/**
|
|
* vbe_simple_read_state() - Read the VBE simple state information
|
|
*
|
|
* @dev: VBE bootmeth
|
|
* @state: Place to put the state
|
|
* @return 0 if OK, -ve on error
|
|
*/
|
|
int vbe_simple_read_state(struct udevice *dev, struct simple_state *state);
|
|
|
|
#endif /* __VBE_SIMPLE_H */
|