xref: /openbmc/linux/sound/soc/pxa/mmp-sspa.h (revision 2c684d89)
1 /*
2  * linux/sound/soc/pxa/mmp-sspa.h
3  *
4  * Copyright (C) 2011 Marvell International Ltd.
5  *
6  * This program is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation; either version 2 of the License, or
9  * (at your option) any later version.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program; if not, write to the Free Software
18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
19  *
20  */
21 #ifndef _MMP_SSPA_H
22 #define _MMP_SSPA_H
23 
24 /*
25  * SSPA Registers
26  */
27 #define SSPA_RXD		(0x00)
28 #define SSPA_RXID		(0x04)
29 #define SSPA_RXCTL		(0x08)
30 #define SSPA_RXSP		(0x0c)
31 #define SSPA_RXFIFO_UL		(0x10)
32 #define SSPA_RXINT_MASK		(0x14)
33 #define SSPA_RXC		(0x18)
34 #define SSPA_RXFIFO_NOFS	(0x1c)
35 #define SSPA_RXFIFO_SIZE	(0x20)
36 
37 #define SSPA_TXD		(0x80)
38 #define SSPA_TXID		(0x84)
39 #define SSPA_TXCTL		(0x88)
40 #define SSPA_TXSP		(0x8c)
41 #define SSPA_TXFIFO_LL		(0x90)
42 #define SSPA_TXINT_MASK		(0x94)
43 #define SSPA_TXC		(0x98)
44 #define SSPA_TXFIFO_NOFS	(0x9c)
45 #define SSPA_TXFIFO_SIZE	(0xa0)
46 
47 /* SSPA Control Register */
48 #define	SSPA_CTL_XPH		(1 << 31)	/* Read Phase */
49 #define	SSPA_CTL_XFIG		(1 << 15)	/* Transmit Zeros when FIFO Empty */
50 #define	SSPA_CTL_JST		(1 << 3)	/* Audio Sample Justification */
51 #define	SSPA_CTL_XFRLEN2_MASK	(7 << 24)
52 #define	SSPA_CTL_XFRLEN2(x)	((x) << 24)	/* Transmit Frame Length in Phase 2 */
53 #define	SSPA_CTL_XWDLEN2_MASK	(7 << 21)
54 #define	SSPA_CTL_XWDLEN2(x)	((x) << 21)	/* Transmit Word Length in Phase 2 */
55 #define	SSPA_CTL_XDATDLY(x)	((x) << 19)	/* Tansmit Data Delay */
56 #define	SSPA_CTL_XSSZ2_MASK	(7 << 16)
57 #define	SSPA_CTL_XSSZ2(x)	((x) << 16)	/* Transmit Sample Audio Size */
58 #define	SSPA_CTL_XFRLEN1_MASK	(7 << 8)
59 #define	SSPA_CTL_XFRLEN1(x)	((x) << 8)	/* Transmit Frame Length in Phase 1 */
60 #define	SSPA_CTL_XWDLEN1_MASK	(7 << 5)
61 #define	SSPA_CTL_XWDLEN1(x)	((x) << 5)	/* Transmit Word Length in Phase 1 */
62 #define	SSPA_CTL_XSSZ1_MASK	(7 << 0)
63 #define	SSPA_CTL_XSSZ1(x)	((x) << 0)	/* XSSZ1 */
64 
65 #define SSPA_CTL_8_BITS		(0x0)		/* Sample Size */
66 #define SSPA_CTL_12_BITS	(0x1)
67 #define SSPA_CTL_16_BITS	(0x2)
68 #define SSPA_CTL_20_BITS	(0x3)
69 #define SSPA_CTL_24_BITS	(0x4)
70 #define SSPA_CTL_32_BITS	(0x5)
71 
72 /* SSPA Serial Port Register */
73 #define	SSPA_SP_WEN		(1 << 31)	/* Write Configuration Enable */
74 #define	SSPA_SP_MSL		(1 << 18)	/* Master Slave Configuration */
75 #define	SSPA_SP_CLKP		(1 << 17)	/* CLKP Polarity Clock Edge Select */
76 #define	SSPA_SP_FSP		(1 << 16)	/* FSP Polarity Clock Edge Select */
77 #define	SSPA_SP_FFLUSH		(1 << 2)	/* FIFO Flush */
78 #define	SSPA_SP_S_RST		(1 << 1)	/* Active High Reset Signal */
79 #define	SSPA_SP_S_EN		(1 << 0)	/* Serial Clock Domain Enable */
80 #define	SSPA_SP_FWID(x)		((x) << 20)	/* Frame-Sync Width */
81 #define	SSPA_TXSP_FPER(x)	((x) << 4)	/* Frame-Sync Active */
82 
83 /* sspa clock sources */
84 #define MMP_SSPA_CLK_PLL	0
85 #define MMP_SSPA_CLK_VCXO	1
86 #define MMP_SSPA_CLK_AUDIO	3
87 
88 /* sspa pll id */
89 #define MMP_SYSCLK		0
90 #define MMP_SSPA_CLK		1
91 
92 #endif /* _MMP_SSPA_H */
93