77 lines
3.2 KiB
C
77 lines
3.2 KiB
C
/* $NetBSD: sa11x0_sspreg.h,v 1.1 2001/07/08 23:37:54 rjs Exp $ */
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/*-
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* Copyright (c) 2001, The NetBSD Foundation, Inc. All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by IWAMOTO Toshihiro.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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/* SA11[01]0 integrated SSP (synchronous serial port) interface */
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#define SASSP_FREQ (3686400 / 2)
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#define SASSPSPEED(b) (SACOM_FREQ / (b) - 1)
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/* size of I/O space */
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#define SASSP_NPORTS 30
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#define SASSP_TXFIFOLEN 8
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#define SASSP_RXFIFOLEN 12
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/* SSP control register 0 */
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#define SASSP_CR0 0x60
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#define CR0_DSS_MASK 0x000F /* Data size select */
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#define CR0_FRF_MASK 0x0030 /* Frame format */
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#define CR0_SSE 0x0080 /* SSP enable */
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#define CR0_SCR_MASK 0xFF00 /* Serial clock rate */
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/* SSP control register 1 */
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#define SASSP_CR1 0x64
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#define CR1_RIE 0x01 /* Receive FIFO interrupt enable */
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#define CR1_TIE 0x02 /* Transmit FIFO interrupt enable */
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#define CR1_LBM 0x04 /* Loopback mode */
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#define CR1_SPO 0x08 /* Serial clock polarity */
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#define CR1_SPH 0x10 /* Serial clock phase */
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#define CR1_ECS 0x20 /* External clock select */
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/* SSP data register */
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#define SASSP_DR 0x6C
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/* SSP status register */
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#define SASSP_SR 0x74
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#define SR_TNF 0x02 /* Transmit FIFO not full */
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#define SR_RNE 0x04 /* Receive FIFO not empty */
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#define SR_BSY 0x08 /* SSP busy flag */
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#define SR_TFS 0x10 /* Transmit FIFO service request */
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#define SR_RFS 0x20 /* Receive FIFO service request */
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#define SR_ROR 0x40 /* Receive FIFO overrrun */
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