linux/drivers/net/sfc/spi.h
Ben Hutchings 8ceee660aa New driver "sfc" for Solarstorm SFC4000 controller.
The driver supports the 10Xpress PHY and XFP modules on our reference
designs SFE4001 and SFE4002 and the SMC models SMC10GPCIe-XFP and
SMC10GPCIe-10BT.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-04-29 01:42:43 -04:00

71 lines
1.6 KiB
C

/****************************************************************************
* 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 */