124 lines
3.5 KiB
C
124 lines
3.5 KiB
C
/*
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main.c
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*/
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#include <string.h>
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#include "global_config.h"
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#include "rom_sym_def.h"
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#include "ota_boot.h"
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#include "bus_dev.h"
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/*******************************************************************************/
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extern int m_in_critical_region;
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extern const uint32_t _sbss;
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extern const uint32_t _ebss;
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/****************************************************************************
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Name: c_start
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Description:
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This is the reset entry point.
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****************************************************************************/
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#define WR_BLK_SIZE 256
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/* Заголовок OTA */
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typedef struct _app_info_t {
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uint32_t flag; // id = START_UP_FLAG
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uint32_t seg_count; // кол-во сегментов
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uint32_t start_addr; // стартовый/run адрес (if = -1 -> берестя из первого значения != -1 у сегмента)
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uint32_t app_size; // размер OTA без 4-х байт CRC32
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} app_info_t;
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app_info_t info_app;
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/* Описание сегментов OTA */
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typedef struct _app_info_seg_t {
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uint32_t faddr; // адрес записи в Flash
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uint32_t size; // размер сегмента
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uint32_t waddr; // рабочий адрес
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uint32_t chk; // не используется
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} app_info_seg_t;
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app_info_seg_t seg_info;
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uint8_t sector_buf[WR_BLK_SIZE];
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__attribute__ ((naked))
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void copy_app_code(void) {
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uint32_t blksize = WR_BLK_SIZE;
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uint32_t rfaddr = FADDR_APP_SEC + 0xfc;
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uint32_t dfaddr = 0;
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uint32_t wfaddr = FADDR_BOOT_ROM_INFO;
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uint32_t count;
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__disable_irq();
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spif_read(rfaddr, (uint8_t*)&rfaddr, 4);
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spif_read(rfaddr, (uint8_t*)&info_app, sizeof(info_app));
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if(info_app.flag == START_UP_FLAG
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&& info_app.seg_count
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&& info_app.seg_count < 16
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&& info_app.app_size < FADDR_APP_SEC - FADDR_OTA_SEC
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){
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dfaddr = rfaddr + 0x100;
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count = info_app.seg_count;
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spif_erase_sector(wfaddr);
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spif_write(wfaddr, (uint8_t*)&info_app.seg_count, 4);
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spif_write(wfaddr + 8, (uint8_t*)&info_app.start_addr, 4);
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wfaddr += 0x100;
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while(count--) {
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rfaddr += 16;
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spif_read(rfaddr, (uint8_t*)&seg_info, 12);
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spif_write(wfaddr, (uint8_t*)&seg_info, 12);
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wfaddr += 16;
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}
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wfaddr = FADDR_OTA_SEC;
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count = info_app.app_size;
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while(count) {
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if(count < WR_BLK_SIZE)
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blksize = count;
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if((wfaddr & (FLASH_SECTOR_SIZE - 1)) == 0)
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spif_erase_sector(wfaddr);
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spif_read(dfaddr, sector_buf, blksize);
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spif_write(wfaddr, sector_buf, blksize);
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dfaddr += blksize;
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wfaddr += blksize;
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count -= blksize;
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}
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spif_erase_sector(FADDR_APP_SEC);
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}
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//__disable_irq();
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m_in_critical_region++;
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/**
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config reset casue as RSTC_WARM_NDWC
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reset path walkaround dwc
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*/
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AP_AON->RTCCC2 = BOOT_FLG_OTA; // [0x4000f034] == 0x55 -> OTA
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AP_AON->SLEEP_R[0] = 4;
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AP_AON->SLEEP_R[1] = 0;
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AP_PCR->SW_RESET1 = 0;
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while(1);
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}
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/////////////////////////////////////////////////////////////////////////////////////////////////////////
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//xip flash read instrcution
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#define XFRD_FCMD_READ 0x0000003
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#define XFRD_FCMD_READ_DUAL 0x801003B
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#define XFRD_FCMD_READ_QUAD 0x801006B
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int main(void) {
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/* Clear .bss. We'll do this inline (vs. calling memset) just to be
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certain that there are no issues with the state of global variables.
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*/
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uint8_t* dest = (uint8_t*)&_sbss;
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uint8_t* edest = (uint8_t*)&_ebss;
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memset(dest, 0, edest - dest);
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g_system_clk = SYS_CLK_XTAL_16M; // SYS_CLK_XTAL_16M, SYS_CLK_DBL_32M, SYS_CLK_DLL_64M
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spif_config(SYS_CLK_DLL_64M, 1, XFRD_FCMD_READ_DUAL, 0, 0);
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copy_app_code();
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return 0;
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}
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