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bootloader: Don't enable secure boot or flash encryption for 3/4 Coding Scheme

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Angus Gratton
2018-09-26 16:57:44 +10:00
committed by Angus Gratton
parent 4d50427e87
commit ff33406e74
2 changed files with 10 additions and 0 deletions
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5
components/bootloader_support/src/secure_boot.c
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@@ -111,6 +111,11 @@ esp_err_t esp_secure_boot_permanently_enable(void) {
return ESP_OK;
}
if (REG_READ(EFUSE_BLK0_RDATA6_REG) & EFUSE_CODING_SCHEME_M) {
ESP_LOGE(TAG, "Secure Boot is currently not supported on hardware with 3/4 Coding Scheme (CODING_SCHEME efuse set)");
return ESP_ERR_NOT_SUPPORTED;
}
err = esp_image_verify_bootloader(&image_len);
if (err != ESP_OK) {
ESP_LOGE(TAG, "bootloader image appears invalid! error %d", err);