Annotation of sys/arch/arm/sa11x0/sa11x0_sspreg.h, Revision 1.1.1.1
1.1 nbrk 1: /* $NetBSD: sa11x0_sspreg.h,v 1.2 2006/04/11 15:24:24 peter 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 NETBSD FOUNDATION, INC. AND CONTRIBUTORS
26: * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
27: * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
28: * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
29: * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
30: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
31: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
32: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
33: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
34: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
35: * POSSIBILITY OF SUCH DAMAGE.
36: */
37:
38: /* SA11[01]0 integrated SSP (synchronous serial port) interface */
39:
40: #define SASSP_FREQ (3686400 / 2)
41: #define SASSPSPEED(b) (SACOM_FREQ / (b) - 1)
42:
43: /* size of I/O space */
44: #define SASSP_NPORTS 30
45:
46: #define SASSP_TXFIFOLEN 8
47: #define SASSP_RXFIFOLEN 12
48:
49: /* SSP control register 0 */
50: #define SASSP_CR0 0x60
51: #define CR0_DSS_MASK 0x000F /* Data size select */
52: #define CR0_FRF_MASK 0x0030 /* Frame format */
53: #define CR0_SSE 0x0080 /* SSP enable */
54: #define CR0_SCR_MASK 0xFF00 /* Serial clock rate */
55:
56: /* SSP control register 1 */
57: #define SASSP_CR1 0x64
58: #define CR1_RIE 0x01 /* Receive FIFO interrupt enable */
59: #define CR1_TIE 0x02 /* Transmit FIFO interrupt enable */
60: #define CR1_LBM 0x04 /* Loopback mode */
61: #define CR1_SPO 0x08 /* Serial clock polarity */
62: #define CR1_SPH 0x10 /* Serial clock phase */
63: #define CR1_ECS 0x20 /* External clock select */
64:
65: /* SSP data register */
66: #define SASSP_DR 0x6C
67:
68: /* SSP status register */
69: #define SASSP_SR 0x74
70: #define SR_TNF 0x02 /* Transmit FIFO not full */
71: #define SR_RNE 0x04 /* Receive FIFO not empty */
72: #define SR_BSY 0x08 /* SSP busy flag */
73: #define SR_TFS 0x10 /* Transmit FIFO service request */
74: #define SR_RFS 0x20 /* Receive FIFO service request */
75: #define SR_ROR 0x40 /* Receive FIFO overrrun */
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