bcm2835_bscreg.h revision 330897 
1/*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2012 Oleksandr Tymoshenko <gonzo@freebsd.org>
5 * Copyright (c) 2013 Luiz Otavio O Souza <loos@freebsd.org>
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 * $FreeBSD: stable/11/sys/arm/broadcom/bcm2835/bcm2835_bscreg.h 330897 2018-03-14 03:19:51Z eadler $
30 */
31
32#ifndef	_BCM2835_BSCREG_H_
33#define	_BCM2835_BSCREG_H_
34
35#define	BCM_BSC_CORE_CLK	150000000U
36#define	BCM_BSC_CTRL		0x00
37#define	BCM_BSC_CTRL_I2CEN		(1 << 15)
38#define	BCM_BSC_CTRL_INTR		(1 << 10)
39#define	BCM_BSC_CTRL_INTT		(1 << 9)
40#define	BCM_BSC_CTRL_INTD		(1 << 8)
41#define	BCM_BSC_CTRL_ST			(1 << 7)
42#define	BCM_BSC_CTRL_CLEAR1		(1 << 5)
43#define	BCM_BSC_CTRL_CLEAR0		(1 << 4)
44#define	BCM_BSC_CTRL_READ		(1 << 0)
45#define	BCM_BSC_CTRL_INT_ALL \
46    (BCM_BSC_CTRL_INTR | BCM_BSC_CTRL_INTT | BCM_BSC_CTRL_INTD)
47
48#define	BCM_BSC_STATUS		0x04
49#define	BCM_BSC_STATUS_CLKT		(1 << 9)
50#define	BCM_BSC_STATUS_ERR		(1 << 8)
51#define	BCM_BSC_STATUS_RXF		(1 << 7)
52#define	BCM_BSC_STATUS_TXE		(1 << 6)
53#define	BCM_BSC_STATUS_RXD		(1 << 5)
54#define	BCM_BSC_STATUS_TXD		(1 << 4)
55#define	BCM_BSC_STATUS_RXR		(1 << 3)
56#define	BCM_BSC_STATUS_TXW		(1 << 2)
57#define	BCM_BSC_STATUS_DONE		(1 << 1)
58#define	BCM_BSC_STATUS_TA		(1 << 0)
59#define	BCM_BSC_STATUS_ERRBITS \
60    (BCM_BSC_STATUS_CLKT | BCM_BSC_STATUS_ERR)
61
62#define	BCM_BSC_DLEN		0x08
63#define	BCM_BSC_SLAVE		0x0c
64#define	BCM_BSC_DATA		0x10
65#define	BCM_BSC_CLOCK		0x14
66#define	BCM_BSC_DELAY		0x18
67#define	BCM_BSC_CLKT		0x1c
68
69#endif	/* _BCM2835_BSCREG_H_ */
70