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efuse: Add new esp_efuse_read_field_bit() convenience function

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Angus Gratton
2020-04-25 15:13:18 +10:00
committed by Angus Gratton
parent 1dd5a4dba4
commit 48d9c14c28
4 changed files with 41 additions and 12 deletions
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17
components/bootloader_support/src/flash_encrypt.c
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@@ -41,8 +41,7 @@ void esp_flash_encryption_init_checks()
#ifdef CONFIG_SECURE_FLASH_ENCRYPTION_MODE_RELEASE
#ifdef CONFIG_SECURE_BOOT
if (esp_secure_boot_enabled() && esp_flash_encryption_enabled()) {
uint8_t flash_crypt_cnt_wr_dis = 0;
esp_efuse_read_field_blob(WR_DIS_CRYPT_CNT, &flash_crypt_cnt_wr_dis, 1);
bool flash_crypt_cnt_wr_dis = esp_efuse_read_field_bit(WR_DIS_CRYPT_CNT);
if (!flash_crypt_cnt_wr_dis) {
uint8_t flash_crypt_cnt = 0;
esp_efuse_read_field_blob(CRYPT_CNT, &flash_crypt_cnt, CRYPT_CNT[0]->bit_count);
@@ -95,22 +94,22 @@ esp_flash_enc_mode_t esp_get_flash_encryption_mode(void)
if (esp_flash_encryption_enabled()) {
/* Check if FLASH CRYPT CNT is write protected */
esp_efuse_read_field_blob(WR_DIS_CRYPT_CNT, &efuse_flash_crypt_cnt_wr_protected, 1);
efuse_flash_crypt_cnt_wr_protected = esp_efuse_read_field_bit(WR_DIS_CRYPT_CNT);
if (efuse_flash_crypt_cnt_wr_protected) {
#if CONFIG_IDF_TARGET_ESP32
esp_efuse_read_field_blob(ESP_EFUSE_DISABLE_DL_CACHE, &dis_dl_cache, 1);
esp_efuse_read_field_blob(ESP_EFUSE_DISABLE_DL_ENCRYPT, &dis_dl_enc, 1);
esp_efuse_read_field_blob(ESP_EFUSE_DISABLE_DL_DECRYPT, &dis_dl_dec, 1);
dis_dl_cache = esp_efuse_read_field_bit(ESP_EFUSE_DISABLE_DL_CACHE);
dis_dl_enc = esp_efuse_read_field_bit(ESP_EFUSE_DISABLE_DL_ENCRYPT);
dis_dl_dec = esp_efuse_read_field_bit(ESP_EFUSE_DISABLE_DL_DECRYPT);
/* Check if DISABLE_DL_DECRYPT, DISABLE_DL_ENCRYPT & DISABLE_DL_CACHE are set */
if ( dis_dl_cache && dis_dl_enc && dis_dl_dec ) {
mode = ESP_FLASH_ENC_MODE_RELEASE;
}
#elif CONFIG_IDF_TARGET_ESP32S2
esp_efuse_read_field_blob(ESP_EFUSE_DIS_DOWNLOAD_MANUAL_ENCRYPT, &dis_dl_enc, 1);
esp_efuse_read_field_blob(ESP_EFUSE_DIS_DOWNLOAD_ICACHE, &dis_dl_icache, 1);
esp_efuse_read_field_blob(ESP_EFUSE_DIS_DOWNLOAD_DCACHE, &dis_dl_dcache, 1);
dis_dl_enc = esp_efuse_read_field_bit(ESP_EFUSE_DIS_DOWNLOAD_MANUAL_ENCRYPT);
dis_dl_icache = esp_efuse_read_field_bit(ESP_EFUSE_DIS_DOWNLOAD_ICACHE);
dis_dl_dcache = esp_efuse_read_field_bit(ESP_EFUSE_DIS_DOWNLOAD_DCACHE);
if (dis_dl_enc && dis_dl_icache && dis_dl_dcache) {
mode = ESP_FLASH_ENC_MODE_RELEASE;