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boardloader: flash option bytes updates

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This commit is contained in:
mcudev 2017-10-19 19:06:58 -04:00 committed by Pavol Rusnak
parent fc7b1cfe81
commit d6ae912703
2 changed files with 38 additions and 18 deletions
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53
embed/boardloader/lowlevel.c
View File

@ -1,5 +1,6 @@
#include STM32_HAL_H
#include "flash.h"
#include "lowlevel.h"
#define WANTED_WRP (OB_WRP_SECTOR_0 | OB_WRP_SECTOR_1 | OB_WRP_SECTOR_2)
@ -10,28 +11,46 @@ void flash_set_option_bytes(void)
{
FLASH_OBProgramInitTypeDef opts;
HAL_FLASHEx_OBGetConfig(&opts);
while (1) {
HAL_FLASHEx_OBGetConfig(&opts);
opts.OptionType = 0;
opts.OptionType = 0;
if (opts.WRPSector != WANTED_WRP) {
opts.OptionType = OPTIONBYTE_WRP;
opts.WRPState = OB_WRPSTATE_ENABLE;
opts.WRPSector = WANTED_WRP;
opts.Banks = FLASH_BANK_1;
}
if (opts.WRPSector != WANTED_WRP) {
opts.OptionType |= OPTIONBYTE_WRP;
opts.WRPState = OB_WRPSTATE_ENABLE;
opts.WRPSector = WANTED_WRP;
opts.Banks = FLASH_BANK_1;
}
if (opts.RDPLevel != WANTED_RDP) {
opts.OptionType = OPTIONBYTE_RDP;
opts.RDPLevel = WANTED_RDP;
}
if (opts.RDPLevel != WANTED_RDP) {
opts.OptionType |= OPTIONBYTE_RDP;
opts.RDPLevel = WANTED_RDP;
}
if (opts.BORLevel != WANTED_BOR) {
opts.OptionType = OPTIONBYTE_BOR;
opts.BORLevel = WANTED_BOR;
}
if (opts.BORLevel != WANTED_BOR) {
opts.OptionType |= OPTIONBYTE_BOR;
opts.BORLevel = WANTED_BOR;
}
if (opts.OptionType != 0) {
if (opts.OptionType == 0) {
break; // protections are configured
}
uint32_t sector_error = 0;
FLASH_EraseInitTypeDef erase;
erase.TypeErase = FLASH_TYPEERASE_SECTORS;
erase.Banks = FLASH_BANK_1 | FLASH_BANK_2;
erase.Sector = FLASH_SECTOR_3;
erase.NbSectors = 21;
erase.VoltageRange = FLASH_VOLTAGE_RANGE_3;
// attempt to erase all sectors except the boardloader sectors
flash_unlock();
HAL_FLASHEx_Erase(&erase, &sector_error);
flash_lock();
// now attempt to lock down the boardloader sectors
HAL_FLASHEx_OBProgram(&opts);
}
}

3
embed/boardloader/main.c
View File

@ -149,6 +149,8 @@ static const uint8_t * const BOARDLOADER_KEYS[] = {
int main(void)
{
periph_init(); // need the systick timer running before the production flash (and many other HAL) operations
#if PRODUCTION
flash_set_option_bytes();
if (!flash_check_option_bytes()) {
@ -162,7 +164,6 @@ int main(void)
#endif
clear_otg_hs_memory();
periph_init();
ensure(0 == display_init(), NULL);
ensure(0 == sdcard_init(), NULL);