2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2012 Oleksandr Tymoshenko <gonzo@freebsd.org>
5 * Copyright (c) 2013 Luiz Otavio O Souza <loos@freebsd.org>
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
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.
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
32 #ifndef _BCM2835_BSCREG_H_
33 #define _BCM2835_BSCREG_H_
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)
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)
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
69 #endif /* _BCM2835_BSCREG_H_ */