1/*
2 *  NXP (Philips) SCC+++(SCN+++) serial driver
3 *
4 *  Copyright (C) 2012 Alexander Shiyan <shc_work@mail.ru>
5 *
6 *  Based on sc26xx.c, by Thomas Bogend��rfer (tsbogend@alpha.franken.de)
7 *
8 *  This program is free software; you can redistribute it and/or modify
9 *  it under the terms of the GNU General Public License as published by
10 *  the Free Software Foundation; either version 2 of the License, or
11 *  (at your option) any later version.
12 */
13
14#ifndef _PLATFORM_DATA_SERIAL_SCCNXP_H_
15#define _PLATFORM_DATA_SERIAL_SCCNXP_H_
16
17#define SCCNXP_MAX_UARTS	2
18
19/* Output lines */
20#define LINE_OP0		1
21#define LINE_OP1		2
22#define LINE_OP2		3
23#define LINE_OP3		4
24#define LINE_OP4		5
25#define LINE_OP5		6
26#define LINE_OP6		7
27#define LINE_OP7		8
28
29/* Input lines */
30#define LINE_IP0		9
31#define LINE_IP1		10
32#define LINE_IP2		11
33#define LINE_IP3		12
34#define LINE_IP4		13
35#define LINE_IP5		14
36#define LINE_IP6		15
37
38/* Signals */
39#define DTR_OP			0	/* DTR */
40#define RTS_OP			4	/* RTS */
41#define DSR_IP			8	/* DSR */
42#define CTS_IP			12	/* CTS */
43#define DCD_IP			16	/* DCD */
44#define RNG_IP			20	/* RNG */
45
46#define DIR_OP			24	/* Special signal for control RS-485.
47					 * Goes high when transmit,
48					 * then goes low.
49					 */
50
51/* Routing control signal 'sig' to line 'line' */
52#define MCTRL_SIG(sig, line)	((line) << (sig))
53
54/*
55 * Example board initialization data:
56 *
57 * static struct resource sc2892_resources[] = {
58 *	DEFINE_RES_MEM(UART_PHYS_START, 0x10),
59 *	DEFINE_RES_IRQ(IRQ_EXT2),
60 * };
61 *
62 * static struct sccnxp_pdata sc2892_info = {
63 *	.mctrl_cfg[0]	= MCTRL_SIG(DIR_OP, LINE_OP0),
64 *	.mctrl_cfg[1]	= MCTRL_SIG(DIR_OP, LINE_OP1),
65 * };
66 *
67 * static struct platform_device sc2892 = {
68 *	.name		= "sc2892",
69 *	.id		= -1,
70 *	.resource	= sc2892_resources,
71 *	.num_resources	= ARRAY_SIZE(sc2892_resources),
72 *	.dev = {
73 *		.platform_data	= &sc2892_info,
74 *	},
75 * };
76 */
77
78/* SCCNXP platform data structure */
79struct sccnxp_pdata {
80	/* Shift for A0 line */
81	const u8		reg_shift;
82	/* Modem control lines configuration */
83	const u32		mctrl_cfg[SCCNXP_MAX_UARTS];
84	/* Timer value for polling mode (usecs) */
85	const unsigned int	poll_time_us;
86};
87
88#endif
89