eeprom_rqst Struct Reference

Host request to read or write SPI EEPROM. More...

#include <msgqueue.h>

Data Fields
uint8_t	command_code
	The command code corresponding to TT_SMC_MSG_READ_EEPROM or TT_SMC_MSG_WRITE_EEPROM.
uint8_t	buffer_mem_type
	Buffer memory type (0 = CSM scratch buffer)
uint8_t	pad [2]
	Two bytes of padding.
uint32_t	spi_address
	SPI flash address to read from or write to.
uint32_t	num_bytes
	Number of bytes to transfer.
uint32_t	csm_addr
	CSM buffer address for the data.

Detailed Description

Host request to read or write SPI EEPROM.

Read messages are processed by read_eeprom_handler. Write messages are processed by write_eeprom_handler.

The host must use flash unlock (TT_SMC_MSG_FLASH_UNLOCK) before writing. The CSM buffer address must fall within the SPI global buffer region.

Field Documentation

buffer_mem_type

uint8_t eeprom_rqst::buffer_mem_type

Buffer memory type (0 = CSM scratch buffer)

command_code

uint8_t eeprom_rqst::command_code

The command code corresponding to TT_SMC_MSG_READ_EEPROM or TT_SMC_MSG_WRITE_EEPROM.

csm_addr

uint32_t eeprom_rqst::csm_addr

CSM buffer address for the data.

num_bytes

uint32_t eeprom_rqst::num_bytes

Number of bytes to transfer.

pad

uint8_t eeprom_rqst::pad[2]

Two bytes of padding.

spi_address

uint32_t eeprom_rqst::spi_address

SPI flash address to read from or write to.

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The documentation for this struct was generated from the following file:

• tenstorrent/msgqueue.h