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e3dce49334
- Use CONFIG_*_MEM when dealing with images in program memory. - Use CONFIG_*_STORAGE when dealing with images on storage. - Use CONFIG_WP when dealing with the entire WP RO region. BUG=chrome-os-partner:39741,chrome-os-partner:23796 TEST=Manual on Cyan with subsequent commit. Verify that FMAP matches actual layout of image. Verify flashrom succeeds flashing + verifying EC image using host command interface. BRANCH=None Change-Id: Iadc02daa89fe3bf07b083ed0f7be2e60702a1867 Signed-off-by: Shawn Nematbakhsh <shawnn@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/270269
39 lines
1.3 KiB
C
39 lines
1.3 KiB
C
/* Copyright 2015 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#ifndef __CROS_EC_CONFIG_STD_INTERNAL_FLASH_H
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#define __CROS_EC_CONFIG_STD_INTERNAL_FLASH_H
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/*
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* Standard memory-mapped flash layout:
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* - RO image starts at the beginning of flash.
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* - PSTATE immediately follows the RO image.
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* - RW image starts at the second half of flash.
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* - WP region consists of the first half of flash (RO + PSTATE).
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*/
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/*
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* The EC uses the one bank of flash to emulate a SPI-like write protect
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* register with persistent state.
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*/
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#define CONFIG_FW_PSTATE_SIZE CONFIG_FLASH_BANK_SIZE
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#define CONFIG_FW_PSTATE_OFF (CONFIG_FW_IMAGE_SIZE - CONFIG_FW_PSTATE_SIZE)
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/* Size of one firmware image in flash */
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#define CONFIG_FW_IMAGE_SIZE (CONFIG_FLASH_PHYSICAL_SIZE / 2)
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#define CONFIG_FLASH_SIZE CONFIG_FLASH_PHYSICAL_SIZE
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#define CONFIG_RO_MEM_OFF 0
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#define CONFIG_RO_STORAGE_OFF 0
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#define CONFIG_RO_SIZE (CONFIG_FW_IMAGE_SIZE - CONFIG_FW_PSTATE_SIZE)
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#define CONFIG_RW_MEM_OFF CONFIG_FW_IMAGE_SIZE
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#define CONFIG_RW_STORAGE_OFF CONFIG_FW_IMAGE_SIZE
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#define CONFIG_RW_SIZE CONFIG_FW_IMAGE_SIZE
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#define CONFIG_WP_OFF CONFIG_RO_STORAGE_OFF
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#define CONFIG_WP_SIZE CONFIG_FW_IMAGE_SIZE
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#endif /* __CROS_EC_CONFIG_STD_INTERNAL_FLASH_H */
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