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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* NXP (Philips) SCC+++(SCN+++) serial driver
*
* Copyright (C) 2012 Alexander Shiyan <[email protected]>
*
* Based on sc26xx.c, by Thomas Bogendörfer ([email protected])
*/
#ifndef _PLATFORM_DATA_SERIAL_SCCNXP_H_
#define _PLATFORM_DATA_SERIAL_SCCNXP_H_
#define SCCNXP_MAX_UARTS 2
/* Output lines */
#define LINE_OP0 1
#define LINE_OP1 2
#define LINE_OP2 3
#define LINE_OP3 4
#define LINE_OP4 5
#define LINE_OP5 6
#define LINE_OP6 7
#define LINE_OP7 8
/* Input lines */
#define LINE_IP0 9
#define LINE_IP1 10
#define LINE_IP2 11
#define LINE_IP3 12
#define LINE_IP4 13
#define LINE_IP5 14
#define LINE_IP6 15
/* Signals */
#define DTR_OP 0 /* DTR */
#define RTS_OP 4 /* RTS */
#define DSR_IP 8 /* DSR */
#define CTS_IP 12 /* CTS */
#define DCD_IP 16 /* DCD */
#define RNG_IP 20 /* RNG */
#define DIR_OP 24 /* Special signal for control RS-485.
* Goes high when transmit,
* then goes low.
*/
/* Routing control signal 'sig' to line 'line' */
#define MCTRL_SIG(sig, line) ((line) << (sig))
/*
* Example board initialization data:
*
* static struct resource sc2892_resources[] = {
* DEFINE_RES_MEM(UART_PHYS_START, 0x10),
* DEFINE_RES_IRQ(IRQ_EXT2),
* };
*
* static struct sccnxp_pdata sc2892_info = {
* .mctrl_cfg[0] = MCTRL_SIG(DIR_OP, LINE_OP0),
* .mctrl_cfg[1] = MCTRL_SIG(DIR_OP, LINE_OP1),
* };
*
* static struct platform_device sc2892 = {
* .name = "sc2892",
* .id = -1,
* .resource = sc2892_resources,
* .num_resources = ARRAY_SIZE(sc2892_resources),
* .dev = {
* .platform_data = &sc2892_info,
* },
* };
*/
/* SCCNXP platform data structure */
struct sccnxp_pdata {
/* Shift for A0 line */
const u8 reg_shift;
/* Modem control lines configuration */
const u32 mctrl_cfg[SCCNXP_MAX_UARTS];
/* Timer value for polling mode (usecs) */
const unsigned int poll_time_us;
};
#endif