xref: /src/sys/arch/hpcmips/tx/tx39spireg.h

/*	$NetBSD: tx39spireg.h,v 1.1 1999/11/20 19:56:37 uch Exp $ */

/*
 * Copyright (c) 1999, by UCHIYAMA Yasushi
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. The name of the developer may NOT be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 */
/*
 * Toshiba TX3912/3922 SPI module
 */

#define TX39_SPICTRL_REG	0x160
#define TX39_SPITXHOLD_REG	0x164 /* W */
#define TX39_SPIRXHOLD_REG	0x164 /* R */

/*
 *	SPI Control Register
 */
/* R */
#define TX39_SPICTRL_SPION		0x00020000
#define TX39_SPICTRL_EMPTY		0x00010000
/* R/W */
#define TX39_SPICTRL_DELAYVAL_SHIFT	12
#define TX39_SPICTRL_DELAYVAL_MASK	0xf
#define TX39_SPICTRL_DELAYVAL(cr) \
	(((cr) >> TX39_SPICTRL_DELAYVAL_SHIFT) & \
	TX39_SPICTRL_DELAYVAL_MASK)
#define TX39_SPICTRL_DELAYVAL_SET(cr, val) \
	((cr) | (((val) << TX39_SPICTRL_DELAYVAL_SHIFT) & \
	(TX39_SPICTRL_DELAYVAL_MASK << TX39_SPICTRL_DELAYVAL_SHIFT)))
/* SPICLK Rate = 7.3728MHz/(BAUDRATE*2 + 2) */
#define TX39_SPICTRL_BAUDRATE_SHIFT	8
#define TX39_SPICTRL_BAUDRATE_MASK	0xf
#define TX39_SPICTRL_BAUDRATE(cr) \
	(((cr) >> TX39_SPICTRL_BAUDRATE_SHIFT) & \
	TX39_SPICTRL_BAUDRATE_MASK)
#define TX39_SPICTRL_BAUDRATE_SET(cr, val) \
	((cr) | (((val) << TX39_SPICTRL_BAUDRATE_SHIFT) & \
	(TX39_SPICTRL_BAUDRATE_MASK << TX39_SPICTRL_BAUDRATE_SHIFT)))
#define TX39_SPICTRL_PHAPOL	       0x00000020
#define TX39_SPICTRL_CLKPOL	       0x00000010
#define TX39_SPICTRL_WORD	       0x00000004
#define TX39_SPICTRL_LSB	       0x00000002
#define TX39_SPICTRL_ENSPI	       0x00000001

/*
 *	SPI Transmitter Holding Register
 */
/* W */
#define TX39_SPICTRL_TXDATA_SHIFT	0
#define TX39_SPICTRL_TXDATA_MASK	0xffff
#define TX39_SPICTRL_TXDATA_SET(cr, val) \
	((cr) | (((val) << TX39_SPICTRL_TXDATA_SHIFT) & \
	(TX39_SPICTRL_TXDATA_MASK << TX39_SPICTRL_TXDATA_SHIFT)))

/*
 *	SPI Receiver Holding Register
 */
/* R */
#define TX39_SPICTRL_RXDATA_SHIFT	8
#define TX39_SPICTRL_RXDATA_MASK	0xf
#define TX39_SPICTRL_RXDATA(cr) \
	(((cr) >> TX39_SPICTRL_RXDATA_SHIFT) & \
	TX39_SPICTRL_RXDATA_MASK)