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Code Issues Releases Wiki Activity

boardloader: disable BOR protection; fix setting OB flags

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This commit is contained in:
Pavol Rusnak 2017-10-29 18:06:45 +01:00
parent a08f18c2ce
commit 16f657361c
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GPG Key ID: 91F3B339B9A02A3D
1 changed files with 5 additions and 7 deletions
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12
embed/boardloader/lowlevel.c
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@ -4,7 +4,6 @@
#define WANTED_WRP (OB_WRP_SECTOR_0 | OB_WRP_SECTOR_1 | OB_WRP_SECTOR_2) #define WANTED_WRP (OB_WRP_SECTOR_0 | OB_WRP_SECTOR_1 | OB_WRP_SECTOR_2)
#define WANTED_RDP (OB_RDP_LEVEL_2) #define WANTED_RDP (OB_RDP_LEVEL_2)
#define WANTED_BOR (OB_BOR_LEVEL3)
void flash_set_option_bytes(void) void flash_set_option_bytes(void)
{ {
@ -27,17 +26,17 @@ void flash_set_option_bytes(void)
opts.RDPLevel = WANTED_RDP; opts.RDPLevel = WANTED_RDP;
} }
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 break; // protections are configured
} }
// attempt to lock down the boardloader sectors // attempt to lock down the boardloader sectors
HAL_FLASH_Unlock();
HAL_FLASH_OB_Unlock();
HAL_FLASHEx_OBProgram(&opts); HAL_FLASHEx_OBProgram(&opts);
HAL_FLASH_OB_Launch();
HAL_FLASH_OB_Lock();
HAL_FLASH_Lock();
} }
} }
@ -45,7 +44,6 @@ secbool flash_check_option_bytes(void)
{ {
if ((FLASH->OPTCR & FLASH_OPTCR_nWRP) != (FLASH_OPTCR_nWRP_0 | FLASH_OPTCR_nWRP_1 | FLASH_OPTCR_nWRP_2)) return secfalse; if ((FLASH->OPTCR & FLASH_OPTCR_nWRP) != (FLASH_OPTCR_nWRP_0 | FLASH_OPTCR_nWRP_1 | FLASH_OPTCR_nWRP_2)) return secfalse;
if ((FLASH->OPTCR & FLASH_OPTCR_RDP) != FLASH_OPTCR_RDP_2) return secfalse; if ((FLASH->OPTCR & FLASH_OPTCR_RDP) != FLASH_OPTCR_RDP_2) return secfalse;
if ((FLASH->OPTCR & FLASH_OPTCR_BOR_LEV) != (FLASH_OPTCR_BOR_LEV_0 | FLASH_OPTCR_BOR_LEV_1)) return secfalse;
return sectrue; return sectrue;
} }