1 /* $NetBSD: sa11x0_sspreg.h,v 1.1 2001/07/08 23:37:54 rjs Exp $ */ 2 3 /*- 4 * Copyright (c) 2001, The NetBSD Foundation, Inc. All rights reserved. 5 * 6 * This code is derived from software contributed to The NetBSD Foundation 7 * by IWAMOTO Toshihiro. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed by the NetBSD 20 * Foundation, Inc. and its contributors. 21 * 4. Neither the name of The NetBSD Foundation nor the names of its 22 * contributors may be used to endorse or promote products derived 23 * from this software without specific prior written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 28 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 35 * SUCH DAMAGE. 36 * 37 */ 38 39 /* SA11[01]0 integrated SSP (synchronous serial port) interface */ 40 41 #define SASSP_FREQ (3686400 / 2) 42 #define SASSPSPEED(b) (SACOM_FREQ / (b) - 1) 43 44 /* size of I/O space */ 45 #define SASSP_NPORTS 30 46 47 #define SASSP_TXFIFOLEN 8 48 #define SASSP_RXFIFOLEN 12 49 50 /* SSP control register 0 */ 51 #define SASSP_CR0 0x60 52 #define CR0_DSS_MASK 0x000F /* Data size select */ 53 #define CR0_FRF_MASK 0x0030 /* Frame format */ 54 #define CR0_SSE 0x0080 /* SSP enable */ 55 #define CR0_SCR_MASK 0xFF00 /* Serial clock rate */ 56 57 /* SSP control register 1 */ 58 #define SASSP_CR1 0x64 59 #define CR1_RIE 0x01 /* Receive FIFO interrupt enable */ 60 #define CR1_TIE 0x02 /* Transmit FIFO interrupt enable */ 61 #define CR1_LBM 0x04 /* Loopback mode */ 62 #define CR1_SPO 0x08 /* Serial clock polarity */ 63 #define CR1_SPH 0x10 /* Serial clock phase */ 64 #define CR1_ECS 0x20 /* External clock select */ 65 66 /* SSP data register */ 67 #define SASSP_DR 0x6C 68 69 /* SSP status register */ 70 #define SASSP_SR 0x74 71 #define SR_TNF 0x02 /* Transmit FIFO not full */ 72 #define SR_RNE 0x04 /* Receive FIFO not empty */ 73 #define SR_BSY 0x08 /* SSP busy flag */ 74 #define SR_TFS 0x10 /* Transmit FIFO service request */ 75 #define SR_RFS 0x20 /* Receive FIFO service request */ 76 #define SR_ROR 0x40 /* Receive FIFO overrrun */ 77