mirror of
https://github.com/trezor/trezor-firmware.git
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105 lines
3.6 KiB
C
105 lines
3.6 KiB
C
/*
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* This file is part of the Trezor project, https://trezor.io/
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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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#include <stdint.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
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Sector 1 | 0x08004000 - 0x08007FFF | 16 KiB | bootloader
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-----------+-------------------------+---------+------------------
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Sector 2 | 0x08008000 - 0x0800BFFF | 16 KiB | storage area
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Sector 3 | 0x0800C000 - 0x0800FFFF | 16 KiB | storage area
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-----------+-------------------------+---------+------------------
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Sector 4 | 0x08010000 - 0x0801FFFF | 64 KiB | firmware
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Sector 5 | 0x08020000 - 0x0803FFFF | 128 KiB | firmware
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Sector 6 | 0x08040000 - 0x0805FFFF | 128 KiB | firmware
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Sector 7 | 0x08060000 - 0x0807FFFF | 128 KiB | firmware
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Sector 8 | 0x08080000 - 0x0809FFFF | 128 KiB | firmware
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Sector 9 | 0x080A0000 - 0x080BFFFF | 128 KiB | firmware
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Sector 10 | 0x080C0000 - 0x080DFFFF | 128 KiB | firmware
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Sector 11 | 0x080E0000 - 0x080FFFFF | 128 KiB | firmware
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firmware header (occupies first 1 KB of the firmware)
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- very similar to trezor-core firmware header described in:
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https://github.com/trezor/trezor-core/blob/master/docs/bootloader.md#firmware-header
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- differences:
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* we don't use sigmask or sig field (these are reserved and set to zero)
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* we introduce new fields immediately following the hash16 field:
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- sig1[64], sig2[64], sig3[64]
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- sigindex1[1], sigindex2[1], sigindex3[1]
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* reserved[415] area is reduced to reserved[220]
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- see signatures.c for more details
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We pad the firmware chunks with zeroes if they are shorted.
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*/
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#define FLASH_ORIGIN (0x08000000)
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#if EMULATOR
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extern uint8_t *emulator_flash_base;
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#define FLASH_PTR(x) (emulator_flash_base + (x - FLASH_ORIGIN))
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#else
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#define FLASH_PTR(x) (const uint8_t *)(x)
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#endif
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#define FLASH_TOTAL_SIZE (1024 * 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_STORAGE_START (FLASH_BOOT_START + FLASH_BOOT_LEN)
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#define FLASH_STORAGE_LEN (0x8000)
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#define FLASH_FWHEADER_START (FLASH_STORAGE_START + FLASH_STORAGE_LEN)
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#define FLASH_FWHEADER_LEN (0x400)
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#define FLASH_APP_START (FLASH_FWHEADER_START + FLASH_FWHEADER_LEN)
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#define FLASH_APP_LEN (FLASH_TOTAL_SIZE - (FLASH_APP_START - FLASH_ORIGIN))
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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_STORAGE_SECTOR_FIRST 2
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#define FLASH_STORAGE_SECTOR_LAST 3
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#define FLASH_CODE_SECTOR_FIRST 4
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#define FLASH_CODE_SECTOR_LAST 11
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void memory_protect(void);
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void memory_write_unlock(void);
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int memory_bootloader_hash(uint8_t *hash);
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static inline void flash_write32(uint32_t addr, uint32_t word) {
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*(volatile uint32_t *)FLASH_PTR(addr) = word;
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}
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static inline void flash_write8(uint32_t addr, uint8_t byte) {
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*(volatile uint8_t *)FLASH_PTR(addr) = byte;
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}
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#endif
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