spi.h: Rename the spi.h to spi-generic.h

Since there are and will be other files in nb/sb folders, we change
the general spi.h to a file name which is not easy to be duplicated.

Change-Id: I6548a81206caa608369be044747bde31e2b08d1a
Signed-off-by: Zheng Bao <zheng.bao@amd.com>
Signed-off-by: zbao <fishbaozi@gmail.com>
Reviewed-on: http://review.coreboot.org/2309
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>

1 files changed, 0 insertions, 204 deletions

diff --git a/src/include/spi.h b/src/include/spi.h
deleted file mode 100644
index d394531712..0000000000
--- a/src/include/spi.h
+++ /dev/null
@@ -1,204 +0,0 @@
-/*
- * (C) Copyright 2001
- * Gerald Van Baren, Custom IDEAS, vanbaren@cideas.com.
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-
-#ifndef _SPI_H_
-#define _SPI_H_
-
-#include <stdint.h>
-
-/* Controller-specific definitions: */
-
-/* SPI mode flags */
-#define	SPI_CPHA	0x01			/* clock phase */
-#define	SPI_CPOL	0x02			/* clock polarity */
-#define	SPI_MODE_0	(0|0)			/* (original MicroWire) */
-#define	SPI_MODE_1	(0|SPI_CPHA)
-#define	SPI_MODE_2	(SPI_CPOL|0)
-#define	SPI_MODE_3	(SPI_CPOL|SPI_CPHA)
-#define	SPI_CS_HIGH	0x04			/* CS active high */
-#define	SPI_LSB_FIRST	0x08			/* per-word bits-on-wire */
-#define	SPI_3WIRE	0x10			/* SI/SO signals shared */
-#define	SPI_LOOP	0x20			/* loopback mode */
-
-/* SPI transfer flags */
-#define SPI_XFER_BEGIN	0x01			/* Assert CS before transfer */
-#define SPI_XFER_END	0x02			/* Deassert CS after transfer */
-
-/* SPI opcodes */
-#define SPI_OPCODE_WREN 0x06
-#define SPI_OPCODE_FAST_READ 0x0b
-
-#define SPI_READ_FLAG	0x01
-#define SPI_WRITE_FLAG	0x02
-
-/*-----------------------------------------------------------------------
- * Representation of a SPI slave, i.e. what we're communicating with.
- *
- * Drivers are expected to extend this with controller-specific data.
- *
- *   bus:	ID of the bus that the slave is attached to.
- *   cs:	ID of the chip select connected to the slave.
- *   rw: 	Read or Write flag
- */
-struct spi_slave {
-	unsigned int	bus;
-	unsigned int	cs;
-	unsigned int	rw;
-};
-
-/*-----------------------------------------------------------------------
- * Initialization, must be called once on start up.
- *
- */
-void spi_init(void);
-
-/*-----------------------------------------------------------------------
- * Set up communications parameters for a SPI slave.
- *
- * This must be called once for each slave. Note that this function
- * usually doesn't touch any actual hardware, it only initializes the
- * contents of spi_slave so that the hardware can be easily
- * initialized later.
- *
- *   bus:     Bus ID of the slave chip.
- *   cs:      Chip select ID of the slave chip on the specified bus.
- *   max_hz:  Maximum SCK rate in Hz.
- *   mode:    Clock polarity, clock phase and other parameters.
- *
- * Returns: A spi_slave reference that can be used in subsequent SPI
- * calls, or NULL if one or more of the parameters are not supported.
- */
-struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
-		unsigned int max_hz, unsigned int mode);
-
-/*-----------------------------------------------------------------------
- * Claim the bus and prepare it for communication with a given slave.
- *
- * This must be called before doing any transfers with a SPI slave. It
- * will enable and initialize any SPI hardware as necessary, and make
- * sure that the SCK line is in the correct idle state. It is not
- * allowed to claim the same bus for several slaves without releasing
- * the bus in between.
- *
- *   slave:	The SPI slave
- *
- * Returns: 0 if the bus was claimed successfully, or a negative value
- * if it wasn't.
- */
-int spi_claim_bus(struct spi_slave *slave);
-
-/*-----------------------------------------------------------------------
- * Release the SPI bus
- *
- * This must be called once for every call to spi_claim_bus() after
- * all transfers have finished. It may disable any SPI hardware as
- * appropriate.
- *
- *   slave:	The SPI slave
- */
-void spi_release_bus(struct spi_slave *slave);
-
-/*-----------------------------------------------------------------------
- * SPI transfer
- *
- * This writes "bitlen" bits out the SPI MOSI port and simultaneously clocks
- * "bitlen" bits in the SPI MISO port.  That's just the way SPI works.
- *
- * The source of the outgoing bits is the "dout" parameter and the
- * destination of the input bits is the "din" parameter.  Note that "dout"
- * and "din" can point to the same memory location, in which case the
- * input data overwrites the output data (since both are buffered by
- * temporary variables, this is OK).
- *
- * spi_xfer() interface:
- *   slave:	The SPI slave which will be sending/receiving the data.
- *   dout:	Pointer to a string of bits to send out.  The bits are
- *		held in a byte array and are sent MSB first.
- *   bitsout:	How many bits to write.
- *   din:	Pointer to a string of bits that will be filled in.
- *   bitsin:	How many bits to read.
- *
- *   Returns: 0 on success, not 0 on failure
- */
-int  spi_xfer(struct spi_slave *slave, const void *dout, unsigned int bitsout,
-		void *din, unsigned int bitsin);
-
-/*-----------------------------------------------------------------------
- * Determine if a SPI chipselect is valid.
- * This function is provided by the board if the low-level SPI driver
- * needs it to determine if a given chipselect is actually valid.
- *
- * Returns: 1 if bus:cs identifies a valid chip on this board, 0
- * otherwise.
- */
-int  spi_cs_is_valid(unsigned int bus, unsigned int cs);
-
-/*-----------------------------------------------------------------------
- * Activate a SPI chipselect.
- * This function is provided by the board code when using a driver
- * that can't control its chipselects automatically (e.g.
- * common/soft_spi.c). When called, it should activate the chip select
- * to the device identified by "slave".
- */
-void spi_cs_activate(struct spi_slave *slave);
-
-/*-----------------------------------------------------------------------
- * Deactivate a SPI chipselect.
- * This function is provided by the board code when using a driver
- * that can't control its chipselects automatically (e.g.
- * common/soft_spi.c). When called, it should deactivate the chip
- * select to the device identified by "slave".
- */
-void spi_cs_deactivate(struct spi_slave *slave);
-
-/*-----------------------------------------------------------------------
- * Set transfer speed.
- * This sets a new speed to be applied for next spi_xfer().
- *   slave:	The SPI slave
- *   hz:	The transfer speed
- */
-void spi_set_speed(struct spi_slave *slave, uint32_t hz);
-
-/*-----------------------------------------------------------------------
- * Write 8 bits, then read 8 bits.
- *   slave:	The SPI slave we're communicating with
- *   byte:	Byte to be written
- *
- * Returns: The value that was read, or a negative value on error.
- *
- * TODO: This function probably shouldn't be inlined.
- */
-static inline int spi_w8r8(struct spi_slave *slave, unsigned char byte)
-{
-	unsigned char dout[2];
-	unsigned char din[2];
-	int ret;
-
-	dout[0] = byte;
-	dout[1] = 0;
-
-	ret = spi_xfer(slave, dout, 16, din, 16);
-	return ret < 0 ? ret : din[1];
-}
-
-#endif	/* _SPI_H_ */