blob: b80c6889baa0bdc1cf0add6706ccaad715a7e7fb (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
|
/*
* Copyright 2016 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef __EC_CHIP_G_FLASH_INFO_H
#define __EC_CHIP_G_FLASH_INFO_H
#include <stddef.h>
#include "signed_header.h"
/*
* Info1 space available to the app firmware is split in several areas. Of
* interest are the two spaces used for rollback prevention of RO and RW image
* versions.
*
* Each bit in the image infomap header section is mapped into a 4 byte word
* in the Info1 space.
*/
#define INFO_RO_MAP_OFFSET 0
#define INFO_RO_MAP_SIZE (INFO_MAX * 4)
#define INFO_RW_MAP_OFFSET INFO_RO_MAP_SIZE
#define INFO_RW_MAP_SIZE (INFO_MAX * 4)
int flash_info_read_enable(uint32_t offset, size_t size);
/* This in fact enables both read and write. */
int flash_info_write_enable(uint32_t offset, size_t size);
void flash_info_write_disable(void);
int flash_info_physical_write(int byte_offset, int num_bytes, const char *data);
int flash_physical_info_read_word(int byte_offset, uint32_t *dst);
#endif /* ! __EC_CHIP_G_FLASH_INFO_H */
|
