1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*
3 * NXP (Philips) SCC+++(SCN+++) serial driver
4 *
5 * Copyright (C) 2012 Alexander Shiyan <shc_work@mail.ru>
6 *
7 * Based on sc26xx.c, by Thomas Bogendörfer (tsbogend@alpha.franken.de)
8 */
9
10 #ifndef _PLATFORM_DATA_SERIAL_SCCNXP_H_
11 #define _PLATFORM_DATA_SERIAL_SCCNXP_H_
12
13 #define SCCNXP_MAX_UARTS 2
14
15 /* Output lines */
16 #define LINE_OP0 1
17 #define LINE_OP1 2
18 #define LINE_OP2 3
19 #define LINE_OP3 4
20 #define LINE_OP4 5
21 #define LINE_OP5 6
22 #define LINE_OP6 7
23 #define LINE_OP7 8
24
25 /* Input lines */
26 #define LINE_IP0 9
27 #define LINE_IP1 10
28 #define LINE_IP2 11
29 #define LINE_IP3 12
30 #define LINE_IP4 13
31 #define LINE_IP5 14
32 #define LINE_IP6 15
33
34 /* Signals */
35 #define DTR_OP 0 /* DTR */
36 #define RTS_OP 4 /* RTS */
37 #define DSR_IP 8 /* DSR */
38 #define CTS_IP 12 /* CTS */
39 #define DCD_IP 16 /* DCD */
40 #define RNG_IP 20 /* RNG */
41
42 #define DIR_OP 24 /* Special signal for control RS-485.
43 * Goes high when transmit,
44 * then goes low.
45 */
46
47 /* Routing control signal 'sig' to line 'line' */
48 #define MCTRL_SIG(sig, line) ((line) << (sig))
49
50 /*
51 * Example board initialization data:
52 *
53 * static struct resource sc2892_resources[] = {
54 * DEFINE_RES_MEM(UART_PHYS_START, 0x10),
55 * DEFINE_RES_IRQ(IRQ_EXT2),
56 * };
57 *
58 * static struct sccnxp_pdata sc2892_info = {
59 * .mctrl_cfg[0] = MCTRL_SIG(DIR_OP, LINE_OP0),
60 * .mctrl_cfg[1] = MCTRL_SIG(DIR_OP, LINE_OP1),
61 * };
62 *
63 * static struct platform_device sc2892 = {
64 * .name = "sc2892",
65 * .id = -1,
66 * .resource = sc2892_resources,
67 * .num_resources = ARRAY_SIZE(sc2892_resources),
68 * .dev = {
69 * .platform_data = &sc2892_info,
70 * },
71 * };
72 */
73
74 /* SCCNXP platform data structure */
75 struct sccnxp_pdata {
76 /* Shift for A0 line */
77 const u8 reg_shift;
78 /* Modem control lines configuration */
79 const u32 mctrl_cfg[SCCNXP_MAX_UARTS];
80 /* Timer value for polling mode (usecs) */
81 const unsigned int poll_time_us;
82 };
83
84 #endif