diff options
Diffstat (limited to 'drivers/net/ethernet/sfc/spi.h')
| -rw-r--r-- | drivers/net/ethernet/sfc/spi.h | 99 |
1 files changed, 0 insertions, 99 deletions
diff --git a/drivers/net/ethernet/sfc/spi.h b/drivers/net/ethernet/sfc/spi.h deleted file mode 100644 index ee951feb0100..000000000000 --- a/drivers/net/ethernet/sfc/spi.h +++ /dev/null @@ -1,99 +0,0 @@ -/**************************************************************************** - * Driver for Solarflare Solarstorm network controllers and boards - * Copyright 2005 Fen Systems Ltd. - * Copyright 2006-2010 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 - * - *************************************************************************/ - -#define SPI_WRSR 0x01 /* Write status register */ -#define SPI_WRITE 0x02 /* Write data to memory array */ -#define SPI_READ 0x03 /* Read data from memory array */ -#define SPI_WRDI 0x04 /* Reset write enable latch */ -#define SPI_RDSR 0x05 /* Read status register */ -#define SPI_WREN 0x06 /* Set write enable latch */ -#define SPI_SST_EWSR 0x50 /* SST: Enable write to status register */ - -#define SPI_STATUS_WPEN 0x80 /* Write-protect pin enabled */ -#define SPI_STATUS_BP2 0x10 /* Block protection bit 2 */ -#define SPI_STATUS_BP1 0x08 /* Block protection bit 1 */ -#define SPI_STATUS_BP0 0x04 /* Block protection bit 0 */ -#define SPI_STATUS_WEN 0x02 /* State of the write enable latch */ -#define SPI_STATUS_NRDY 0x01 /* Device busy flag */ - -/** - * struct falcon_spi_device - a Falcon SPI (Serial Peripheral Interface) device - * @device_id: Controller's id for the device - * @size: Size (in bytes) - * @addr_len: Number of address bytes in read/write commands - * @munge_address: Flag whether addresses should be munged. - * Some devices with 9-bit addresses (e.g. AT25040A EEPROM) - * use bit 3 of the command byte as address bit A8, rather - * than having a two-byte address. If this flag is set, then - * commands should be munged in this way. - * @erase_command: Erase command (or 0 if sector erase not needed). - * @erase_size: Erase sector size (in bytes) - * Erase commands affect sectors with this size and alignment. - * This must be a power of two. - * @block_size: Write block size (in bytes). - * Write commands are limited to blocks with this size and alignment. - */ -struct falcon_spi_device { - int device_id; - unsigned int size; - unsigned int addr_len; - unsigned int munge_address:1; - u8 erase_command; - unsigned int erase_size; - unsigned int block_size; -}; - -static inline bool falcon_spi_present(const struct falcon_spi_device *spi) -{ - return spi->size != 0; -} - -int falcon_spi_cmd(struct efx_nic *efx, - const struct falcon_spi_device *spi, unsigned int command, - int address, const void *in, void *out, size_t len); -int falcon_spi_wait_write(struct efx_nic *efx, - const struct falcon_spi_device *spi); -int falcon_spi_read(struct efx_nic *efx, - const struct falcon_spi_device *spi, loff_t start, - size_t len, size_t *retlen, u8 *buffer); -int falcon_spi_write(struct efx_nic *efx, - const struct falcon_spi_device *spi, loff_t start, - size_t len, size_t *retlen, const u8 *buffer); - -/* - * SFC4000 flash is partitioned into: - * 0-0x400 chip and board config (see falcon_hwdefs.h) - * 0x400-0x8000 unused (or may contain VPD if EEPROM not present) - * 0x8000-end boot code (mapped to PCI expansion ROM) - * SFC4000 small EEPROM (size < 0x400) is used for VPD only. - * SFC4000 large EEPROM (size >= 0x400) is partitioned into: - * 0-0x400 chip and board config - * configurable VPD - * 0x800-0x1800 boot config - * Aside from the chip and board config, all of these are optional and may - * be absent or truncated depending on the devices used. - */ -#define FALCON_NVCONFIG_END 0x400U -#define FALCON_FLASH_BOOTCODE_START 0x8000U -#define FALCON_EEPROM_BOOTCONFIG_START 0x800U -#define FALCON_EEPROM_BOOTCONFIG_END 0x1800U - -#endif /* EFX_SPI_H */ |