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Add filesystem code and storage syscalls

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Adds syscalls:

- ALLOCATE_AREA
- DEALLOCATE_AREA
- WRITE_DATA
- READ_DATA

and code to access the filesystem and the flash over SPI.

Based on original work by Daniel Jobson <jobson@tillitis.see> for
these files:

- auth_app.[ch]
- flash.[ch]
- spi.[ch]
- partition_table.[ch]
- rng.[ch]
- storage.[ch]

which are used with small changes to integrate with the new syscall
method.

Co-authored-by: Daniel Jobson <jobson@tillitis.se>
Co-authored-by: Mikael Ågren <mikael@tillitis.se>
This commit is contained in:
Michael Cardell Widerkrantz 2025-03-12 16:17:48 +01:00 • committed by Mikael Ågren
parent e86e60fcfe
commit 8da9eef5d0
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GPG key ID: E02DA3D397792C46
19 changed files with 974 additions and 7 deletions
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29
hw/application_fpga/fw/tk1/rng.c Normal file
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// Copyright (C) 2024 - Tillitis AB
// SPDX-License-Identifier: GPL-2.0-only
#include "rng.h"
#include <tkey/tk1_mem.h>
#include <stdint.h>
// clang-format off
static volatile uint32_t *trng_status = (volatile uint32_t *)TK1_MMIO_TRNG_STATUS;
static volatile uint32_t *trng_entropy = (volatile uint32_t *)TK1_MMIO_TRNG_ENTROPY;
// clang-format on
//
//
uint32_t rng_get_word(void)
{
while ((*trng_status & (1 << TK1_MMIO_TRNG_STATUS_READY_BIT)) == 0) {
}
return *trng_entropy;
}
uint32_t rng_xorwow(uint32_t state, uint32_t acc)
{
state ^= state << 13;
state ^= state >> 17;
state ^= state << 5;
state += acc;
return state;
}