mirror of https://github.com/wolfSSL/wolfBoot.git
155 lines
4.0 KiB
C
155 lines
4.0 KiB
C
/* mcxw.c
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*
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* Stubs for custom HAL implementation. Defines the
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* functions used by wolfboot for a specific target.
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*
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* Copyright (C) 2025 wolfSSL Inc.
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*
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* This file is part of wolfBoot.
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*
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* wolfBoot is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* wolfBoot 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. See the
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* 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 License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
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*/
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#include <stdint.h>
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#include <target.h>
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#include "image.h"
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/* FSL includes */
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#include "fsl_common.h"
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/* Clock + RAM voltage settings */
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#include "fsl_clock.h"
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#include "fsl_spc.h"
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/* Flash driver */
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#include "fsl_device_registers.h"
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#include "fsl_lpspi_flash.h"
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#include "fsl_k4_flash.h"
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/*!< Core clock frequency: 48000000Hz */
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#define BOARD_BOOTCLOCKRUN_CORE_CLOCK 48000000U
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static flash_config_t pflash;
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static uint32_t pflash_sector_size = WOLFBOOT_SECTOR_SIZE;
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uint32_t SystemCoreClock;
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#ifdef __WOLFBOOT
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extern void BOARD_BootClockRUN(void);
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/* Assert hook needed by Kinetis SDK */
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void __assert_func(const char *a, int b, const char *c, const char *d)
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{
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while(1)
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;
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}
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void hal_prepare_boot(void)
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{
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}
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#endif
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void hal_init(void)
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{
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#ifdef __WOLFBOOT
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/* Clock setting */
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BOARD_BootClockRUN();
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#endif
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/* Flash driver init */
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flash_config_t pflash;
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/* Clear the FLASH configuration structure */
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memset(&pflash, 0, sizeof(pflash));
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/* FLASH driver init */
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FLASH_Init(&pflash);
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FLASH_GetProperty(&pflash, kFLASH_PropertyPflash0SectorSize,
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&pflash_sector_size);
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}
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int RAMFUNCTION hal_flash_write(uint32_t address, const uint8_t *data, int len)
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{
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int ret;
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int w = 0;
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const uint8_t empty_qword[16] = {
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0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
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0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF
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};
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while (len > 0) {
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if ((len < 16) || address & 0x0F) {
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uint8_t aligned_qword[16];
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uint32_t address_align = address - (address & 0x0F);
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uint32_t start_off = address - address_align;
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int i;
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memcpy(aligned_qword, (void*)address_align, 16);
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for (i = start_off; ((i < 16) && (i < len + (int)start_off)); i++) {
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aligned_qword[i] = data[w++];
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}
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if (memcmp(aligned_qword, empty_qword, 16) != 0) {
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ret = FLASH_Program(&pflash, FLASH, address_align, aligned_qword, 16);
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if (ret != kStatus_Success)
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return -1;
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}
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address += i;
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len -= i;
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}
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else {
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uint32_t len_align = len - (len & 0x0F);
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ret = FLASH_Program(&pflash, FLASH, address, (uint8_t*)data + w, len_align);
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if (ret != kStatus_Success)
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return -1;
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len -= len_align;
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address += len_align;
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}
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}
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return 0;
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}
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void RAMFUNCTION hal_flash_unlock(void)
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{
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}
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void RAMFUNCTION hal_flash_lock(void)
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{
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}
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int RAMFUNCTION hal_flash_erase(uint32_t address, int len)
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{
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status_t result;
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if (address % pflash_sector_size)
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address -= address % pflash_sector_size;
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while (len > 0) {
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result = FLASH_Erase(&pflash, FLASH, address, pflash_sector_size,
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kFLASH_ApiEraseKey);
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if (kStatus_FLASH_Success != result)
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return -1;
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/* Verify sector if it's been erased. */
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result = FLASH_VerifyEraseSector(&pflash, FLASH, address,
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pflash_sector_size);
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if (kStatus_FLASH_Success != result)
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return -1;
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len -= pflash_sector_size;
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}
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return 0;
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}
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