You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
71 lines
1.6 KiB
71 lines
1.6 KiB
/****************************************************************************
|
|
* Driver for Solarflare Solarstorm network controllers and boards
|
|
* Copyright 2005 Fen Systems Ltd.
|
|
* Copyright 2006 Solarflare Communications Inc.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License version 2 as published
|
|
* by the Free Software Foundation, incorporated herein by reference.
|
|
*/
|
|
|
|
#ifndef EFX_SPI_H
|
|
#define EFX_SPI_H
|
|
|
|
#include "net_driver.h"
|
|
|
|
/**************************************************************************
|
|
*
|
|
* Basic SPI command set and bit definitions
|
|
*
|
|
*************************************************************************/
|
|
|
|
/*
|
|
* Commands common to all known devices.
|
|
*
|
|
*/
|
|
|
|
/* Write status register */
|
|
#define SPI_WRSR 0x01
|
|
|
|
/* Write data to memory array */
|
|
#define SPI_WRITE 0x02
|
|
|
|
/* Read data from memory array */
|
|
#define SPI_READ 0x03
|
|
|
|
/* Reset write enable latch */
|
|
#define SPI_WRDI 0x04
|
|
|
|
/* Read status register */
|
|
#define SPI_RDSR 0x05
|
|
|
|
/* Set write enable latch */
|
|
#define SPI_WREN 0x06
|
|
|
|
/* SST: Enable write to status register */
|
|
#define SPI_SST_EWSR 0x50
|
|
|
|
/*
|
|
* Status register bits. Not all bits are supported on all devices.
|
|
*
|
|
*/
|
|
|
|
/* Write-protect pin enabled */
|
|
#define SPI_STATUS_WPEN 0x80
|
|
|
|
/* Block protection bit 2 */
|
|
#define SPI_STATUS_BP2 0x10
|
|
|
|
/* Block protection bit 1 */
|
|
#define SPI_STATUS_BP1 0x08
|
|
|
|
/* Block protection bit 0 */
|
|
#define SPI_STATUS_BP0 0x04
|
|
|
|
/* State of the write enable latch */
|
|
#define SPI_STATUS_WEN 0x02
|
|
|
|
/* Device busy flag */
|
|
#define SPI_STATUS_NRDY 0x01
|
|
|
|
#endif /* EFX_SPI_H */
|
|
|