1/*-
2 * Copyright (c) 2009, Oleksandr Tymoshenko <gonzo@FreeBSD.org>
3 * Copyright (c) 2011, Aleksandr Rybalko <ray@FreeBSD.org>
4 * Copyright (c) 2013, Alexander A. Mityaev <sansan@adm.ua>
5 * Copyright (c) 2016, Stanislav Galabov <sgalabov@gmail.com>
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 unmodified, this list of conditions, and the following
13 *    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 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * SUCH DAMAGE.
29 *
30 * $FreeBSD$
31 */
32
33#ifndef _MTK_SPIVAR_H_
34#define _MTK_SPIVAR_H_
35
36/* SPI controller interface */
37
38#define MTK_SPISTAT		0x00
39/* SPIBUSY is alias for SPIBUSY, because SPISTAT have only BUSY bit*/
40#define MTK_SPIBUSY		MTK_SPISTAT
41
42#define MTK_SPICFG		0x10
43#define		MSBFIRST		(1<<8)
44#define		SPICLKPOL		(1<<6)
45#define		CAPT_ON_CLK_FALL	(1<<5)
46#define		TX_ON_CLK_FALL		(1<<4)
47#define		HIZSPI			(1<<3)	/* Set SPI pins to Tri-state */
48#define		SPI_CLK_SHIFT		0	/* SPI clock divide control */
49#define		SPI_CLK_MASK		0x00000007
50#define		SPI_CLK_DIV2		0
51#define		SPI_CLK_DIV4		1
52#define		SPI_CLK_DIV8		2
53#define		SPI_CLK_DIV16		3
54#define		SPI_CLK_DIV32		4
55#define		SPI_CLK_DIV64		5
56#define		SPI_CLK_DIV128		6
57#define		SPI_CLK_DISABLED	7
58
59#define MTK_SPICTL		0x14
60#define		HIZSMOSI		(1<<3)
61#define		START_WRITE		(1<<2)
62#define		START_READ		(1<<1)
63#define		CS_HIGH			(1<<0)
64
65#define MTK_SPIDATA		0x20
66#define		SPIDATA_MASK		0x000000ff
67
68#define MTK_SPI_WRITE		1
69#define MTK_SPI_READ		0
70
71#endif /* _MTK_SPIVAR_H_ */
72