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https://github.com/tillitis/tillitis-key1.git
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2c1c05f180
- Add per app flash storage
- Adds four data areas. An app can allocate an area. Once allocated
the area is tied to the CDI of the app and can only be
read/written/deallocated by the same app.
- Add two pre loaded app slots to flash
- Load an app from the first slot at boot. The app digest must match a
specific digest specified in firmware.
- Optionally load an app from the second slot
- Add a resetinfo area in FW_RAM which is used to signal an app's intent
of resetting the system and, optionally, pass data to firmware or the
next app in a bootchain.
Co-authored-by: Jonas Thörnblad <jonas@tillitis.se>
Co-authored-by: Mikael Ågren <mikael@tillitis.se>
Co-authored-by: Daniel Jobson <jobson@tillitis.se>
56 lines
1.4 KiB
C
56 lines
1.4 KiB
C
// Copyright (C) 2024 - Tillitis AB
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// SPDX-License-Identifier: GPL-2.0-only
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#ifndef TKEY_FLASH_H
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#define TKEY_FLASH_H
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#include <stdbool.h>
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#include <stddef.h>
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#include <stdint.h>
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#define WRITE_ENABLE 0x06
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#define WRITE_DISABLE 0x04
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#define READ_STATUS_REG_1 0x05
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#define READ_STATUS_REG_2 0x35
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#define WRITE_STATUS_REG 0x01
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#define PAGE_PROGRAM 0x02
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#define SECTOR_ERASE 0x20
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#define BLOCK_ERASE_32K 0x52
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#define BLOCK_ERASE_64K 0xD8
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#define CHIP_ERASE 0xC7
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#define POWER_DOWN 0xB9
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#define READ_DATA 0x03
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#define RELEASE_POWER_DOWN 0xAB
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#define READ_MANUFACTURER_ID 0x90
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#define READ_JEDEC_ID 0x9F
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#define READ_UNIQUE_ID 0x4B
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#define ENABLE_RESET 0x66
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#define RESET 0x99
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#define ADDR_BYTE_3_BIT 16
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#define ADDR_BYTE_2_BIT 8
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#define ADDR_BYTE_1_BIT 0
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#define STATUS_REG_BUSY_BIT 0
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#define STATUS_REG_WEL_BIT 1
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void flash_write_disable(void);
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void flash_sector_erase(uint32_t address);
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void flash_block_32_erase(uint32_t address);
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void flash_block_64_erase(uint32_t address);
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void flash_release_powerdown(void);
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void flash_powerdown(void);
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void flash_read_manufacturer_device_id(uint8_t *device_id);
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void flash_read_jedec_id(uint8_t *jedec_id);
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void flash_read_unique_id(uint8_t *unique_id);
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void flash_read_status(uint8_t *status_reg);
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int flash_read_data(uint32_t address, uint8_t *dest_buf, size_t size);
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int flash_write_data(uint32_t address, uint8_t *data, size_t size);
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#endif
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