mirror of
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>
28 lines
597 B
C
28 lines
597 B
C
// Copyright (C) 2025 - Tillitis AB
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// SPDX-License-Identifier: GPL-2.0-only
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#ifndef TKEY_RESETINFO_H
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#define TKEY_RESETINFO_H
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#include <stdint.h>
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#define TK1_MMIO_RESETINFO_BASE 0xd0000f00
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#define TK1_MMIO_RESETINFO_SIZE 0x100
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enum reset_start {
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START_DEFAULT = 0, // Probably cold boot
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START_FLASH0 = 1,
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START_FLASH1 = 2,
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START_FLASH0_VER = 3,
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START_FLASH1_VER = 4,
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START_CLIENT = 5,
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START_CLIENT_VER = 6,
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};
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struct reset {
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uint32_t type; // Reset type
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uint8_t app_digest[32]; // Program digest
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uint8_t next_app_data[220]; // Data to leave around for next app
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};
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#endif
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