summaryrefslogtreecommitdiff
path: root/chip/ish/config_flash_layout.h
blob: 4e4b7ad90b9920c8be675ea5875c9af1bb1896b6 (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
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
/* Copyright 2015 The ChromiumOS Authors
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */

#ifndef __CROS_EC_CONFIG_FLASH_LAYOUT_H
#define __CROS_EC_CONFIG_FLASH_LAYOUT_H

/* Mem-mapped, No external SPI for ISH */
#undef CONFIG_EXTERNAL_STORAGE
#define CONFIG_MAPPED_STORAGE
#undef CONFIG_FLASH_PSTATE
#undef CONFIG_SPI_FLASH

#ifdef CHIP_VARIANT_ISH5P4
#define CONFIG_ISH_BOOT_START 0xFF200000
#else
#define CONFIG_ISH_BOOT_START 0xFF000000
#endif

/*****************************************************************************/
/* The following macros are not applicable for ISH, however the build fails if
 * they are not defined. Ideally, there should be an option in EC build to
 * turn off SPI and flash, making these unnecessary.
 */

#define CONFIG_MAPPED_STORAGE_BASE 0x0

#define CONFIG_EC_PROTECTED_STORAGE_OFF (CONFIG_FLASH_SIZE_BYTES - 0x20000)
#define CONFIG_EC_PROTECTED_STORAGE_SIZE 0x20000
#define CONFIG_EC_WRITABLE_STORAGE_OFF (CONFIG_FLASH_SIZE_BYTES - 0x40000)
#define CONFIG_EC_WRITABLE_STORAGE_SIZE 0x20000

/* Unused for ISH - loader is external to ISH FW */
#define CONFIG_LOADER_MEM_OFF 0
#define CONFIG_LOADER_SIZE 0xC00

/* RO/RW images - not relevant for ISH
 */
#define CONFIG_RO_MEM_OFF (CONFIG_LOADER_MEM_OFF + CONFIG_LOADER_SIZE)
#define CONFIG_RO_SIZE (97 * 1024)
#define CONFIG_RW_MEM_OFF CONFIG_RO_MEM_OFF
#define CONFIG_RW_SIZE CONFIG_RO_SIZE

/*****************************************************************************/

/* Not relevant for ISH */
#define CONFIG_BOOT_HEADER_STORAGE_OFF 0
#define CONFIG_BOOT_HEADER_STORAGE_SIZE 0x240

#define CONFIG_LOADER_STORAGE_OFF \
	(CONFIG_BOOT_HEADER_STORAGE_OFF + CONFIG_BOOT_HEADER_STORAGE_SIZE)

/* RO image immediately follows the loader image */
#define CONFIG_RO_STORAGE_OFF (CONFIG_LOADER_STORAGE_OFF + CONFIG_LOADER_SIZE)

/* RW image starts at the beginning of SPI */
#define CONFIG_RW_STORAGE_OFF 0

#endif /* __CROS_EC_CONFIG_FLASH_LAYOUT_H */