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Add support for external flash in NSC flash veneers #793

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Merged
danielinux merged 1 commit into from
Jun 11, 2026
Merged

Add support for external flash in NSC flash veneers #793

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14 changes: 14 additions & 0 deletions src/libwolfboot.c
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Original file line number Diff line number Diff line change
Expand Up @@ -2474,9 +2474,15 @@ int wolfBoot_nsc_erase_update(uint32_t address, uint32_t len)
if (len > WOLFBOOT_PARTITION_SIZE - address)
return -1;

#ifdef PART_UPDATE_EXT
ext_flash_unlock();
ret = ext_flash_erase(address + WOLFBOOT_PARTITION_UPDATE_ADDRESS, len);
ext_flash_lock();
#else
hal_flash_unlock();
ret = hal_flash_erase(address + WOLFBOOT_PARTITION_UPDATE_ADDRESS, len);
hal_flash_lock();
#endif
return ret;
}

Expand All @@ -2491,9 +2497,17 @@ int wolfBoot_nsc_write_update(uint32_t address, const uint8_t *buf, uint32_t len
return -1;
if (len > 0 && WOLFBOOT_NSC_NS_RW(buf, len) == NULL)
return -1;

#ifdef PART_UPDATE_EXT
ext_flash_unlock();
ret = ext_flash_check_write(address + WOLFBOOT_PARTITION_UPDATE_ADDRESS,
buf, len);
ext_flash_lock();
#else
hal_flash_unlock();
ret = hal_flash_write(address + WOLFBOOT_PARTITION_UPDATE_ADDRESS, buf, len);
hal_flash_lock();
#endif
return ret;
}

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