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Flash encryption: Support enabling flash encryption in bootloader, app support

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* App access functions are all flash encryption-aware
* Documentation for flash encryption
* Partition read/write is flash aware
* New encrypted write function
This commit is contained in:
Angus Gratton
2016-11-11 17:00:34 +11:00
parent bd20288b81
commit 9eb135fd73
36 changed files with 1511 additions and 404 deletions
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14
components/esp32/include/rom/spi_flash.h
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@@ -495,16 +495,20 @@ SpiFlashOpResult SPI_Prepare_Encrypt_Data(uint32_t flash_addr, uint32_t *data);
void SPI_Write_Encrypt_Disable(void);
/**
* @brief Encrpto writing data to flash, you should Erase it yourself if need.
* Please do not call this function in SDK.
* @brief Write data to flash with transparent encryption.
* @note Sectors to be written should already be erased.
*
* @param uint32_t flash_addr : Address to write, should be 32 bytes aligned.
* @note Please do not call this function in SDK.
*
* @param uint32_t *data : The pointer to data which is to write.
* @param uint32_t flash_addr : Address to write, should be 32 byte aligned.
*
* @param uint32_t *data : The pointer to data to write. Note, this pointer must
* be 32 bit aligned and the content of the data will be
* modified by the encryption function.
*
* @param uint32_t len : Length to write, should be 32 bytes aligned.
*
* @return SPI_FLASH_RESULT_OK : Encrypto write OK.
* @return SPI_FLASH_RESULT_OK : Data written successfully.
* SPI_FLASH_RESULT_ERR : Encrypto write error.
* SPI_FLASH_RESULT_TIMEOUT : Encrypto write timeout.
*/