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/* Copyright 2015 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 __CROS_EC_CONFIG_FLASH_LAYOUT_H
#define __CROS_EC_CONFIG_FLASH_LAYOUT_H
/*
* npcx flash layout:
* - Memory-mapped external SPI.
* - Image header at the beginning of protected region, followed by RO image.
* - RW image starts at the second half of flash.
*/
/* Memmapped, external SPI */
#define CONFIG_EXTERNAL_STORAGE
#define CONFIG_MAPPED_STORAGE
/* Storage is memory-mapped, but program runs from SRAM */
#define CONFIG_MAPPED_STORAGE_BASE 0x64000000
#undef CONFIG_FLASH_PSTATE
/*
* On NPCX, the first 256KB of external SPI storage belongs to the EC,
* regardless of the actual size of external SPI.
*/
#define NPCX_EC_FLASH_SIZE 0x40000
#define CONFIG_EC_PROTECTED_STORAGE_OFF 0
#define CONFIG_EC_PROTECTED_STORAGE_SIZE 0x20000
#define CONFIG_EC_WRITABLE_STORAGE_OFF 0x20000
#define CONFIG_EC_WRITABLE_STORAGE_SIZE 0x20000
/* Size of one firmware image in flash */
#ifndef CONFIG_FW_IMAGE_SIZE
#define CONFIG_FW_IMAGE_SIZE (96 * 1024) /* 96 KB for FW images */
#endif
/* Header support which is used by booter to copy FW from flash to code ram */
#define NPCX_RO_HEADER
#define CONFIG_RO_HDR_MEM_OFF 0x0
#define CONFIG_RO_HDR_SIZE 0x40
#define CONFIG_WP_STORAGE_OFF CONFIG_EC_PROTECTED_STORAGE_OFF
#define CONFIG_WP_STORAGE_SIZE CONFIG_EC_PROTECTED_STORAGE_SIZE
/* RO firmware offset in flash */
#define CONFIG_RO_MEM_OFF CONFIG_RO_HDR_SIZE
#define CONFIG_RO_SIZE CONFIG_FW_IMAGE_SIZE
/* RW firmware offset in flash */
#define CONFIG_RW_MEM_OFF CONFIG_RW_STORAGE_OFF
#define CONFIG_RW_SIZE CONFIG_FW_IMAGE_SIZE
/* The storage offset of ec.R*.flat which is used for CONFIG_CDRAM_ARCH */
#define CONFIG_RO_STORAGE_OFF CONFIG_RO_HDR_SIZE
#define CONFIG_RW_STORAGE_OFF 0
#endif /* __CROS_EC_CONFIG_FLASH_LAYOUT_H */
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