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WIP partition table

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Daniel Jobson 2024-08-30 14:58:19 +02:00
parent a873e7c211
commit a0ce957f10
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4 changed files with 170 additions and 3 deletions
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hw/application_fpga/fw/tk1/partition_table.c Normal file
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// Copyright (C) 2024 - Tillitis AB
// SPDX-License-Identifier: GPL-2.0-only
#include "partition_table.h"
#include "flash.h"
#include "lib.h"
#include "proto.h"
#include <stdint.h>
int part_table_read(partition_table_t *part_table)
{
// Read from flash, if it exists, otherwise create a new one.
flash_release_powerdown();
memset(part_table, 0x00, sizeof(*part_table));
flash_read_data(ADDR_PARTITION_TABLE, (uint8_t *)part_table,
sizeof(*part_table));
// TODO: Implement redundancy and consistency check
if (part_table->header.version != PART_TABLE_VERSION) {
// Partition table is not ours. Make a new one, and store it.
memset(part_table, 0x00, sizeof(*part_table));
part_table->header.version = PART_TABLE_VERSION;
for (int i = 0; i < 4; i++) {
part_table->app_storage[i].addr_start =
(ADDR_STORAGE_AREA + i * SIZE_STORAGE_AREA);
part_table->app_storage[i].size = SIZE_STORAGE_AREA;
}
part_table_write(part_table);
}
// Now the partition table is synced between flash and RAM.
return 0;
}
int part_table_write(partition_table_t *part_table)
{
flash_sector_erase(ADDR_PARTITION_TABLE);
flash_write_data(ADDR_PARTITION_TABLE, (uint8_t *)part_table,
sizeof(*part_table));
return 0;
}