mirror of
https://github.com/trezor/trezor-firmware.git
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105 lines
3.7 KiB
C
105 lines
3.7 KiB
C
/*
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* This file is part of the TREZOR project.
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*
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* Copyright (C) 2014 Pavol Rusnak <stick@satoshilabs.com>
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*
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* This library is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __MEMORY_H__
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#define __MEMORY_H__
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/*
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flash memory layout:
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name | range | size | function
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-----------+-------------------------+---------+------------------
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Sector 0 | 0x08000000 - 0x08003FFF | 16 KiB | bootloader code
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Sector 1 | 0x08004000 - 0x08007FFF | 16 KiB | bootloader code
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-----------+-------------------------+---------+------------------
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Sector 2 | 0x08008000 - 0x0800BFFF | 16 KiB | metadata area
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Sector 3 | 0x0800C000 - 0x0800FFFF | 16 KiB | metadata area
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-----------+-------------------------+---------+------------------
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Sector 4 | 0x08010000 - 0x0801FFFF | 64 KiB | application code
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Sector 5 | 0x08020000 - 0x0803FFFF | 128 KiB | application code
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Sector 6 | 0x08040000 - 0x0805FFFF | 128 KiB | application code
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Sector 7 | 0x08060000 - 0x0807FFFF | 128 KiB | application code
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===========+=========================+============================
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Sector 8 | 0x08080000 - 0x0809FFFF | 128 KiB | N/A
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Sector 9 | 0x080A0000 - 0x080BFFFF | 128 KiB | N/A
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Sector 10 | 0x080C0000 - 0x080DFFFF | 128 KiB | N/A
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Sector 11 | 0x080E0000 - 0x080FFFFF | 128 KiB | N/A
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metadata area:
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offset | type/length | description
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--------+-------------+-------------------------------
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0x0000 | 4 bytes | magic = 'TRZR'
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0x0004 | uint32 | length of the code (codelen)
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0x0008 | uint8 | signature index #1
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0x0009 | uint8 | signature index #2
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0x000A | uint8 | signature index #3
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0x000B | uint8 | flags
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0x000C | 52 bytes | reserved
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0x0040 | 64 bytes | signature #1
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0x0080 | 64 bytes | signature #2
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0x00C0 | 64 bytes | signature #3
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0x0100 | 32K-256 B | persistent storage
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flags & 0x01 -> restore storage after flashing (if signatures are ok)
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*/
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#define FLASH_ORIGIN (0x08000000)
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#define FLASH_TOTAL_SIZE (512 * 1024)
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#define FLASH_BOOT_START (FLASH_ORIGIN)
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#define FLASH_BOOT_LEN (0x8000)
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#define FLASH_META_START (FLASH_BOOT_START + FLASH_BOOT_LEN)
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#define FLASH_META_LEN (0x8000)
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#define FLASH_APP_START (FLASH_META_START + FLASH_META_LEN)
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#define FLASH_META_MAGIC (FLASH_META_START)
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#define FLASH_META_CODELEN (FLASH_META_START + 0x0004)
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#define FLASH_META_SIGINDEX1 (FLASH_META_START + 0x0008)
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#define FLASH_META_SIGINDEX2 (FLASH_META_START + 0x0009)
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#define FLASH_META_SIGINDEX3 (FLASH_META_START + 0x000A)
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#define FLASH_META_FLAGS (FLASH_META_START + 0x000B)
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#define FLASH_META_SIG1 (FLASH_META_START + 0x0040)
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#define FLASH_META_SIG2 (FLASH_META_START + 0x0080)
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#define FLASH_META_SIG3 (FLASH_META_START + 0x00C0)
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#define FLASH_META_DESC_LEN (0x100)
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#define FLASH_STORAGE_START (FLASH_META_START + FLASH_META_DESC_LEN)
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#define FLASH_STORAGE_LEN (FLASH_APP_START - FLASH_STORAGE_START)
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#define FLASH_BOOT_SECTOR_FIRST 0
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#define FLASH_BOOT_SECTOR_LAST 1
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#define FLASH_META_SECTOR_FIRST 2
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#define FLASH_META_SECTOR_LAST 3
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#define FLASH_CODE_SECTOR_FIRST 4
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#define FLASH_CODE_SECTOR_LAST 7
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void memory_protect(void);
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int memory_bootloader_hash(uint8_t *hash);
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#endif
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