/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * NXP (Philips) SCC+++(SCN+++) serial driver * * Copyright (C) 2012 Alexander Shiyan <shc_work@mail.ru> * * Based on sc26xx.c, by Thomas Bogendörfer (tsbogend@alpha.franken.de) */ #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