diff options
| author | Ben Hutchings <bhutchings@solarflare.com> | 2008-04-27 12:55:59 +0100 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@redhat.com> | 2008-04-29 01:42:43 -0400 |
| commit | 8ceee660aacb29721e26f08e336c58dc4847d1bd (patch) | |
| tree | 158122642e6f21fe85d072c50d6185a0d0cf6834 /drivers/net/sfc/spi.h | |
| parent | 358c12953b88c5a06a57c33eb27c753b2e7934d1 (diff) | |
| download | lwn-8ceee660aacb29721e26f08e336c58dc4847d1bd.tar.gz lwn-8ceee660aacb29721e26f08e336c58dc4847d1bd.zip | |
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>
Diffstat (limited to 'drivers/net/sfc/spi.h')
| -rw-r--r-- | drivers/net/sfc/spi.h | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/drivers/net/sfc/spi.h b/drivers/net/sfc/spi.h new file mode 100644 index 000000000000..34412f3d41c9 --- /dev/null +++ b/drivers/net/sfc/spi.h @@ -0,0 +1,71 @@ +/**************************************************************************** + * 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 */ |