gpxe: delete long since obsolete snapshot of gPXE

gPXE has been deprecated in favor of iPXE for many, many years now.
It is much better than users get it directly from the iPXE project,
since we should no longer need any special modifications for Syslinux
use.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

1 files changed, 0 insertions, 258 deletions

diff --git a/gpxe/src/include/gpxe/spi.h b/gpxe/src/include/gpxe/spi.h
deleted file mode 100644
index 8e4a6763..00000000
--- a/gpxe/src/include/gpxe/spi.h
+++ /dev/null
@@ -1,258 +0,0 @@
-#ifndef _GPXE_SPI_H
-#define _GPXE_SPI_H
-
-/** @file
- *
- * SPI interface
- *
- */
-
-FILE_LICENCE ( GPL2_OR_LATER );
-
-#include <gpxe/nvs.h>
-
-/**
- * @defgroup spicmds SPI commands
- * @{
- */
-
-/** 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
-
-/**
- * @defgroup atmelcmds Atmel-specific SPI commands
- * @{
- */
-
-/** Erase one sector in memory array (Not supported on all devices) */
-#define ATMEL_SECTOR_ERASE 0x52
-
-/** Erase all sections in memory array (Not supported on all devices) */
-#define ATMEL_CHIP_ERASE 0x62
-
-/** Read manufacturer and product ID (Not supported on all devices) */
-#define ATMEL_RDID 0x15
-
-/** @} */
-
-/** @} */
-
-/**
- * @defgroup spistatus SPI status register bits (not present 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
-
-/** @} */
-
-/**
- * An SPI device
- *
- * This data structure represents a physical SPI device attached to an
- * SPI bus.
- */
-struct spi_device {
-	/** NVS device */
-	struct nvs_device nvs;
-	/** SPI bus to which device is attached */
-	struct spi_bus *bus;
-	/** Slave number */
-	unsigned int slave;
-	/** Command length, in bits */
-	unsigned int command_len;
-	/** Address length, in bits */
-	unsigned int address_len;
-	/** Address is 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.
-	 */
-	unsigned int munge_address : 1;
-};
-
-/**
- * SPI magic autodetection address length
- *
- * Set @c spi_device::address_len to @c SPI_AUTODETECT_ADDRESS_LEN if
- * the address length should be autodetected.
- */
-#define SPI_AUTODETECT_ADDRESS_LEN 0
-
-static inline __attribute__ (( always_inline )) struct spi_device *
-nvs_to_spi ( struct nvs_device *nvs ) {
-	return container_of ( nvs, struct spi_device, nvs );
-}
-
-/**
- * An SPI bus
- *
- * This data structure represents an SPI bus controller capable of
- * issuing commands to attached SPI devices.
- */
-struct spi_bus {
-	/** SPI interface mode
-	 *
-	 * This is the bitwise OR of zero or more of @c SPI_MODE_CPHA
-	 * and @c SPI_MODE_CPOL.  It is also the number conventionally
-	 * used to describe the SPI interface mode.  For example, SPI
-	 * mode 1 is the mode in which CPOL=0 and CPHA=1, which
-	 * therefore corresponds to a mode value of (0|SPI_MODE_CPHA)
-	 * which, happily, equals 1.
-	 */
-	unsigned int mode;
-	/**
-	 * Read/write data via SPI bus
-	 *
-	 * @v bus		SPI bus
-	 * @v device		SPI device
-	 * @v command		Command
-	 * @v address		Address to read/write (<0 for no address)
-	 * @v data_out		TX data buffer (or NULL)
-	 * @v data_in		RX data buffer (or NULL)
-	 * @v len		Length of data buffer(s)
-	 *
-	 * This issues the specified command and optional address to
-	 * the SPI device, then reads and/or writes data to/from the
-	 * data buffers.
-	 */
-	int ( * rw ) ( struct spi_bus *bus, struct spi_device *device,
-		       unsigned int command, int address,
-		       const void *data_out, void *data_in, size_t len );
-};
-
-/** Clock phase (CPHA) mode bit
- *
- * Phase 0 is sample on rising edge, shift data on falling edge.
- *
- * Phase 1 is shift data on rising edge, sample data on falling edge.
- */
-#define SPI_MODE_CPHA 0x01
-
-/** Clock polarity (CPOL) mode bit
- *
- * This bit reflects the idle state of the clock line (SCLK).
- */
-#define SPI_MODE_CPOL 0x02
-
-/** Slave select polarity mode bit
- *
- * This bit reflects that active state of the slave select lines.  It
- * is not part of the normal SPI mode number (which covers only @c
- * SPI_MODE_CPOL and @c SPI_MODE_CPHA), but is included here for
- * convenience.
- */
-#define SPI_MODE_SSPOL 0x10
-
-/** Microwire-compatible mode
- *
- * This is SPI mode 1 (i.e. CPOL=0, CPHA=1), and is compatible with
- * the original Microwire protocol.
- */
-#define SPI_MODE_MICROWIRE 1
-
-/** Microwire/Plus-compatible mode
- *
- * This is SPI mode 0 (i.e. CPOL=0, CPHA=0), and is compatible with
- * the Microwire/Plus protocol
- */
-#define SPI_MODE_MICROWIRE_PLUS 0
-
-/** Threewire-compatible mode
- *
- * This mode is compatible with Atmel's series of "three-wire"
- * interfaces.
- */
-#define SPI_MODE_THREEWIRE ( SPI_MODE_MICROWIRE_PLUS | SPI_MODE_SSPOL )
-
-extern int spi_read ( struct nvs_device *nvs, unsigned int address,
-		      void *data, size_t len );
-extern int spi_write ( struct nvs_device *nvs, unsigned int address,
-		       const void *data, size_t len );
-
-/**
- * @defgroup spidevs SPI device types
- * @{
- */
-
-static inline __attribute__ (( always_inline )) void
-init_spi ( struct spi_device *device ) {
-	device->nvs.word_len_log2 = 0;
-	device->command_len = 8,
-	device->nvs.read = spi_read;
-	device->nvs.write = spi_write;	
-}
-
-/** Atmel AT25F1024 serial flash */
-static inline __attribute__ (( always_inline )) void
-init_at25f1024 ( struct spi_device *device ) {
-	device->address_len = 24;
-	device->nvs.size = ( 128 * 1024 );
-	device->nvs.block_size = 256;
-	init_spi ( device );
-}
-
-/** Atmel 25040 serial EEPROM */
-static inline __attribute__ (( always_inline )) void
-init_at25040 ( struct spi_device *device ) {
-	device->address_len = 8;
-	device->munge_address = 1;
-	device->nvs.size = 512;
-	device->nvs.block_size = 8;
-	init_spi ( device );
-}
-
-/** ST M25P32 serial flash */
-static inline __attribute__ (( always_inline )) void
-init_m25p32 ( struct spi_device *device ) {
-	device->address_len = 24;
-	device->nvs.size = ( 4 * 1024 * 1024 );
-	device->nvs.block_size = 256;
-	init_spi ( device );
-}
-
-/** Microchip 25XX640 serial EEPROM */
-static inline __attribute__ (( always_inline )) void
-init_mc25xx640 ( struct spi_device *device ) {
-	device->address_len = 16;
-	device->nvs.size = ( 8 * 1024 );
-	device->nvs.block_size = 32;
-	init_spi ( device );
-}
-
-/** @} */
-
-#endif /* _GPXE_SPI_H */