alex/esp-idf
1
0
Fork 0
mirror of https://github.com/espressif/esp-idf.git synced 2025-08-10 04:43:33 +00:00
Code Issues Packages Projects Releases Wiki Activity

Improve flash encryption documentation and add Development & Release modes

Browse Source 
This MR improves existing flash encryption document to provide simplified steps
Adds two new modes for user: Development & Release
Adds a simple example
Supports encrypted write through make command
This commit is contained in:
Hemal Gujarathi
2019-01-21 22:14:56 +08:00
committed by bot
parent beaefd3359
commit a68c7c21e1
22 changed files with 924 additions and 247 deletions
Download Patch File Download Diff File Expand all files Collapse all files

17
components/bootloader_support/include/esp_flash_encrypt.h
View File

@@ -22,6 +22,14 @@
#endif
#include "soc/efuse_periph.h"
/* @brief Flash encryption mode based on efuse values
*/
typedef enum {
ESP_FLASH_ENC_MODE_DISABLED, // flash encryption is not enabled (flash crypt cnt=0)
ESP_FLASH_ENC_MODE_DEVELOPMENT, // flash encryption is enabled but for Development (reflash over UART allowed)
ESP_FLASH_ENC_MODE_RELEASE // flash encryption is enabled for Release (reflash over UART disabled)
}esp_flash_enc_mode_t;
/**
* @file esp_partition.h
* @brief Support functions for flash encryption features
@@ -114,4 +122,13 @@ esp_err_t esp_flash_encrypt_region(uint32_t src_addr, size_t data_length);
*/
void esp_flash_write_protect_crypt_cnt();
/** @brief Return the flash encryption mode
*
* The API is called during boot process but can also be called by
* application to check the current flash encryption mode of ESP32
*
* @return
*/
esp_flash_enc_mode_t esp_get_flash_encryption_mode();
#endif