xref: /freebsd/sys/arm/mv/a37x0_iicreg.h (revision ce6a89e27cd190313be39bb479880aeda4778436)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3  *
4  * Copyright (c) 2018, 2019 Rubicon Communications, LLC (Netgate)
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25  * SUCH DAMAGE.
26  *
27  * $FreeBSD$
28  */
29 
30 #ifndef	_A37X0_IICREG_H_
31 #define	_A37X0_IICREG_H_
32 
33 #define	A37X0_IIC_IBMR		0x00
34 #define	A37X0_IIC_IDBR		0x04
35 #define	A37X0_IIC_ICR		0x08
36 #define	 ICR_START		(1 << 0)
37 #define	 ICR_STOP		(1 << 1)
38 #define	 ICR_ACKNAK		(1 << 2)
39 #define	 ICR_TB			(1 << 3)
40 #define	 ICR_MA			(1 << 4)
41 #define	 ICR_SCLE		(1 << 5)
42 #define	 ICR_IUE		(1 << 6)
43 #define	 ICR_GCD		(1 << 7)
44 #define	 ICR_ITEIE		(1 << 8)
45 #define	 ICR_IRFIE		(1 << 9)
46 #define	 ICR_BEIE		(1 << 10)
47 #define	 ICR_SSDIE		(1 << 11)
48 #define	 ICR_ALDIE		(1 << 12)
49 #define	 ICR_SADIE		(1 << 13)
50 #define	 ICR_UR			(1 << 14)
51 #define	 ICR_FAST_MODE		(1 << 16)
52 #define	 ICR_HIGH_SPEED		(1 << 17)
53 #define	 ICR_MODE_MASK		(ICR_FAST_MODE | ICR_HIGH_SPEED)
54 #define	 ICR_INIT							\
55     (ICR_BEIE | ICR_IRFIE | ICR_ITEIE | ICR_GCD | ICR_SCLE)
56 #define	A37X0_IIC_ISR		0x0c
57 #define	 ISR_RWM		(1 << 0)
58 #define	 ISR_ACKNAK		(1 << 1)
59 #define	 ISR_UB			(1 << 2)
60 #define	 ISR_IBB		(1 << 3)
61 #define	 ISR_SSD		(1 << 4)
62 #define	 ISR_ALD		(1 << 5)
63 #define	 ISR_ITE		(1 << 6)
64 #define	 ISR_IRF		(1 << 7)
65 #define	 ISR_GCAD		(1 << 8)
66 #define	 ISR_SAD		(1 << 9)
67 #define	 ISR_BED		(1 << 10)
68 
69 #endif	/* _A37X0_IICREG_H_ */
70