spi_eeprom.c File Reference

#include "reg.h"
#include "status_reg.h"
#include "util.h"
#include <stdbool.h>
#include <string.h>
#include <tenstorrent/smc_msg.h>
#include <tenstorrent/msgqueue.h>
#include <tenstorrent/sys_init_defines.h>
#include <tenstorrent/tt_boot_fs.h>
#include <zephyr/drivers/mspi.h>
#include <zephyr/drivers/flash.h>
#include <zephyr/logging/log.h>
#include <zephyr/init.h>
#include <zephyr/kernel.h>

Macros
#define	SPI_PAGE_SIZE   256
#define	SECTOR_SIZE   4096
#define	SPI_BUFFER_SIZE   4096
#define	BYTE_GET(v, b)
#define	SSI_RX_DLY_SR_DEPTH   64
#define	SPI_RX_SAMPLE_DELAY_TRAIN_ADDR   0x13FFC
#define	SPI_RX_SAMPLE_DELAY_TRAIN_DATA   0xA5A55A5A

Functions
	LOG_MODULE_REGISTER (spi_eeprom, CONFIG_TT_APP_LOG_LEVEL)
static void	EepromSetup (void)
static int	SpiBlockRead (uint32_t spi_address, uint32_t num_bytes, uint8_t *dest)
static int	SpiSmartWrite (uint32_t address, const uint8_t *data, uint32_t num_bytes)
static bool	check_csm_region (uint32_t addr, uint32_t num_bytes)
static uint8_t	read_eeprom_handler (const union request *request, struct response *response)
static uint8_t	write_eeprom_handler (const union request *request, struct response *response)
static uint8_t	confirm_flashed_spi_handler (const union request *request, struct response *response)
static uint8_t	flash_lock_handler (const union request *request, struct response *response)
static uint8_t	flash_unlock_handler (const union request *request, struct response *response)
	REGISTER_MESSAGE (TT_SMC_MSG_READ_EEPROM, read_eeprom_handler)
	REGISTER_MESSAGE (TT_SMC_MSG_WRITE_EEPROM, write_eeprom_handler)
	REGISTER_MESSAGE (TT_SMC_MSG_CONFIRM_FLASHED_SPI, confirm_flashed_spi_handler)
	REGISTER_MESSAGE (TT_SMC_MSG_FLASH_LOCK, flash_lock_handler)
	REGISTER_MESSAGE (TT_SMC_MSG_FLASH_UNLOCK, flash_unlock_handler)
static int	InitSpiFS (void)
	SYS_INIT_APP (InitSpiFS)

Variables
static uint8_t	spi_page_buf [4096]
static uint8_t	spi_global_buffer [4096]
static struct flash_pages_info	page_info
static bool	flash_locked = true
static const struct device *	flash = DEVICE_DT_GET_OR_NULL(DT_NODELABEL(spi_flash))

Macro Definition Documentation

BYTE_GET

#define BYTE_GET	(		v,
			b )

Value:

FIELD_GET(0xFFu << ((b) * 8), (v))

SECTOR_SIZE

#define SECTOR_SIZE   4096

SPI_BUFFER_SIZE

#define SPI_BUFFER_SIZE   4096

SPI_PAGE_SIZE

#define SPI_PAGE_SIZE   256

SPI_RX_SAMPLE_DELAY_TRAIN_ADDR

#define SPI_RX_SAMPLE_DELAY_TRAIN_ADDR   0x13FFC

SPI_RX_SAMPLE_DELAY_TRAIN_DATA

#define SPI_RX_SAMPLE_DELAY_TRAIN_DATA   0xA5A55A5A

SSI_RX_DLY_SR_DEPTH

#define SSI_RX_DLY_SR_DEPTH   64

Function Documentation

check_csm_region()

bool check_csm_region ( uint32_t addr, uint32_t num_bytes )

static

confirm_flashed_spi_handler()

uint8_t confirm_flashed_spi_handler ( const union request * request, struct response * response )

static

EepromSetup()

void EepromSetup ( void )

static

flash_lock_handler()

uint8_t flash_lock_handler ( const union request * request, struct response * response )

static

flash_unlock_handler()

uint8_t flash_unlock_handler ( const union request * request, struct response * response )

static

InitSpiFS()

int InitSpiFS ( void )

static

LOG_MODULE_REGISTER()

LOG_MODULE_REGISTER	(	spi_eeprom	,
		CONFIG_TT_APP_LOG_LEVEL	)

read_eeprom_handler()

uint8_t read_eeprom_handler ( const union request * request, struct response * response )

static

REGISTER_MESSAGE() [1/5]

REGISTER_MESSAGE	(	TT_SMC_MSG_CONFIRM_FLASHED_SPI	,
		confirm_flashed_spi_handler	)

REGISTER_MESSAGE() [2/5]

REGISTER_MESSAGE	(	TT_SMC_MSG_FLASH_LOCK	,
		flash_lock_handler	)

REGISTER_MESSAGE() [3/5]

REGISTER_MESSAGE	(	TT_SMC_MSG_FLASH_UNLOCK	,
		flash_unlock_handler	)

REGISTER_MESSAGE() [4/5]

REGISTER_MESSAGE	(	TT_SMC_MSG_READ_EEPROM	,
		read_eeprom_handler	)

REGISTER_MESSAGE() [5/5]

REGISTER_MESSAGE	(	TT_SMC_MSG_WRITE_EEPROM	,
		write_eeprom_handler	)

SpiBlockRead()

int SpiBlockRead ( uint32_t spi_address, uint32_t num_bytes, uint8_t * dest )

static

SpiSmartWrite()

int SpiSmartWrite ( uint32_t address, const uint8_t * data, uint32_t num_bytes )

static

SYS_INIT_APP()

SYS_INIT_APP

(

InitSpiFS

)

write_eeprom_handler()

uint8_t write_eeprom_handler ( const union request * request, struct response * response )

static

Variable Documentation

flash

const struct device* flash = DEVICE_DT_GET_OR_NULL(DT_NODELABEL(spi_flash))

static

flash_locked

bool flash_locked = true

static

page_info

struct flash_pages_info page_info

static

spi_global_buffer

uint8_t spi_global_buffer[4096]

static

spi_page_buf

uint8_t spi_page_buf[4096]

static