blob: af0c8c3b89ae8f576cab1896acd2a43b5f27ff64 [file] [log] [blame]
Alexander Shiyan1d65c0b2012-08-25 19:24:19 +04001/*
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 Bogendörfer (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
Alexander Shiyan463dcc42012-12-03 22:23:32 +040014#ifndef _PLATFORM_DATA_SERIAL_SCCNXP_H_
15#define _PLATFORM_DATA_SERIAL_SCCNXP_H_
Alexander Shiyan1d65c0b2012-08-25 19:24:19 +040016
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 = {
Alexander Shiyan1d65c0b2012-08-25 19:24:19 +040063 * .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 {
Alexander Shiyan1d65c0b2012-08-25 19:24:19 +040080 /* Shift for A0 line */
Greg Kroah-Hartman461a8ec2013-08-02 15:25:19 +080081 const u8 reg_shift;
Alexander Shiyan1d65c0b2012-08-25 19:24:19 +040082 /* Modem control lines configuration */
Greg Kroah-Hartman461a8ec2013-08-02 15:25:19 +080083 const u32 mctrl_cfg[SCCNXP_MAX_UARTS];
Alexander Shiyanec063892012-12-03 22:23:31 +040084 /* Timer value for polling mode (usecs) */
Greg Kroah-Hartman461a8ec2013-08-02 15:25:19 +080085 const unsigned int poll_time_us;
Alexander Shiyan1d65c0b2012-08-25 19:24:19 +040086};
87
88#endif