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c46c3825a0
Linker script based on rp2350/memmap_default.ld from pico-sdk. Fix to flash config (erase on sector boundaries).
71 lines
1.9 KiB
C
71 lines
1.9 KiB
C
/*
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* This file is part of Betaflight.
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*
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* Betaflight is free software. You can redistribute this software
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* and/or modify this software under the terms of the GNU General
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* Public License as published by the Free Software Foundation,
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* either version 3 of the License, or (at your option) any later
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* version.
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*
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* Betaflight 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.
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*
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* See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this software.
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*
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <string.h>
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#include "platform.h"
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#include "drivers/system.h"
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#include "config/config_streamer.h"
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#include "hardware/flash.h"
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#include "hardware/sync.h"
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#if defined(CONFIG_IN_FLASH)
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void configUnlock(void)
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{
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// NOOP
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}
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void configLock(void)
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{
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// NOOP
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}
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void configClearFlags(void)
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{
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// NOOP
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}
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configStreamerResult_e configWriteWord(uintptr_t address, config_streamer_buffer_type_t *buffer)
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{
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// TODO: synchronise second core... see e.g. pico-examples flash_program, uses flash_safe_execute.
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// pico-sdk flash_range functions use the offset from start of FLASH
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uint32_t flash_offs = address - XIP_BASE;
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uint32_t interrupts = save_and_disable_interrupts();
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if ((flash_offs % FLASH_SECTOR_SIZE) == 0) {
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// Erase the flash sector before writing
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flash_range_erase(flash_offs, FLASH_SECTOR_SIZE);
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}
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STATIC_ASSERT(CONFIG_STREAMER_BUFFER_SIZE == sizeof(config_streamer_buffer_type_t) * CONFIG_STREAMER_BUFFER_SIZE, "CONFIG_STREAMER_BUFFER_SIZE does not match written size");
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// Write data to flash
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flash_range_program(flash_offs, buffer, CONFIG_STREAMER_BUFFER_SIZE);
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restore_interrupts(interrupts);
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return CONFIG_RESULT_SUCCESS;
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}
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#endif // CONFIG_IN_FLASH
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