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feat: enable flash encyption support in esp32c61

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This commit add support for flash ecnyrption in ESP32C61.
This commit is contained in:
nilesh.kale
2024-06-07 16:19:42 +05:30
parent 53734aab16
commit 2bf74cf86d
3 changed files with 13 additions and 17 deletions
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26
components/hal/esp32c61/include/hal/spi_flash_encrypted_ll.h
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@@ -15,18 +15,16 @@
#include <stdbool.h>
#include <string.h>
#include "soc/hp_system_reg.h"
#include "soc/xts_aes_reg.h"
#include "soc/spi_mem_reg.h"
#include "soc/soc.h"
#include "soc/soc_caps.h"
#include "hal/assert.h"
// TODO: [ESP32C61] IDF-9232, inherit from c6
#ifdef __cplusplus
extern "C" {
#endif
/// Choose type of chip you want to encrypt manully
/// Choose type of chip you want to encrypt manually
typedef enum
{
FLASH_ENCRYPTION_MANU = 0, ///!< Manually encrypt the flash chip.
@@ -53,7 +51,7 @@ static inline void spi_flash_encrypt_ll_disable(void)
}
/**
* Choose type of chip you want to encrypt manully
* Choose type of chip you want to encrypt manually
*
* @param type The type of chip to be encrypted
*
@@ -63,7 +61,7 @@ static inline void spi_flash_encrypt_ll_type(flash_encrypt_ll_type_t type)
{
// Our hardware only support flash encryption
HAL_ASSERT(type == FLASH_ENCRYPTION_MANU);
REG_SET_FIELD(XTS_AES_DESTINATION_REG(0), XTS_AES_DESTINATION, type);
REG_SET_FIELD(SPI_MEM_XTS_DESTINATION_REG(0), SPI_MEM_XTS_DESTINATION, type);
}
/**
@@ -74,7 +72,7 @@ static inline void spi_flash_encrypt_ll_type(flash_encrypt_ll_type_t type)
static inline void spi_flash_encrypt_ll_buffer_length(uint32_t size)
{
// Desired block should not be larger than the block size.
REG_SET_FIELD(XTS_AES_LINESIZE_REG(0), XTS_AES_LINESIZE, size >> 5);
REG_SET_FIELD(SPI_MEM_XTS_LINESIZE_REG(0), SPI_MEM_XTS_LINESIZE, size >> 5);
}
/**
@@ -89,7 +87,7 @@ static inline void spi_flash_encrypt_ll_plaintext_save(uint32_t address, const u
{
uint32_t plaintext_offs = (address % SOC_FLASH_ENCRYPTED_XTS_AES_BLOCK_MAX);
HAL_ASSERT(plaintext_offs + size <= SOC_FLASH_ENCRYPTED_XTS_AES_BLOCK_MAX);
memcpy((void *)(XTS_AES_PLAIN_MEM(0) + plaintext_offs), buffer, size);
memcpy((void *)(SPI_MEM_XTS_PLAIN_BASE_REG(0) + plaintext_offs), buffer, size);
}
/**
@@ -99,7 +97,7 @@ static inline void spi_flash_encrypt_ll_plaintext_save(uint32_t address, const u
*/
static inline void spi_flash_encrypt_ll_address_save(uint32_t flash_addr)
{
REG_SET_FIELD(XTS_AES_PHYSICAL_ADDRESS_REG(0), XTS_AES_PHYSICAL_ADDRESS, flash_addr);
REG_SET_FIELD(SPI_MEM_XTS_PHYSICAL_ADDRESS_REG(0), SPI_MEM_XTS_PHYSICAL_ADDRESS, flash_addr);
}
/**
@@ -107,7 +105,7 @@ static inline void spi_flash_encrypt_ll_address_save(uint32_t flash_addr)
*/
static inline void spi_flash_encrypt_ll_calculate_start(void)
{
REG_SET_FIELD(XTS_AES_TRIGGER_REG(0), XTS_AES_TRIGGER, 1);
REG_SET_FIELD(SPI_MEM_XTS_TRIGGER_REG(0), SPI_MEM_XTS_TRIGGER, 1);
}
/**
@@ -115,7 +113,7 @@ static inline void spi_flash_encrypt_ll_calculate_start(void)
*/
static inline void spi_flash_encrypt_ll_calculate_wait_idle(void)
{
while(REG_GET_FIELD(XTS_AES_STATE_REG(0), XTS_AES_STATE) == 0x1) {
while(REG_GET_FIELD(SPI_MEM_XTS_STATE_REG(0), SPI_MEM_XTS_STATE) == 0x1) {
}
}
@@ -124,8 +122,8 @@ static inline void spi_flash_encrypt_ll_calculate_wait_idle(void)
*/
static inline void spi_flash_encrypt_ll_done(void)
{
REG_SET_BIT(XTS_AES_RELEASE_REG(0), XTS_AES_RELEASE);
while(REG_GET_FIELD(XTS_AES_STATE_REG(0), XTS_AES_STATE) != 0x3) {
REG_SET_BIT(SPI_MEM_XTS_RELEASE_REG(0), SPI_MEM_XTS_RELEASE);
while(REG_GET_FIELD(SPI_MEM_XTS_STATE_REG(0), SPI_MEM_XTS_STATE) != 0x3) {
}
}
@@ -134,7 +132,7 @@ static inline void spi_flash_encrypt_ll_done(void)
*/
static inline void spi_flash_encrypt_ll_destroy(void)
{
REG_SET_BIT(XTS_AES_DESTROY_REG(0), XTS_AES_DESTROY);
REG_SET_BIT(SPI_MEM_XTS_DESTROY_REG(0), SPI_MEM_XTS_DESTROY);
}
/**