uart_cpu_s3c2410.c revision 256196
1/* 2 * Copyright (c) 2003 Marcel Moolenaar 3 * Copyright (c) 2007 Andrew Turner 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28#include <sys/cdefs.h> 29__FBSDID("$FreeBSD: head/sys/arm/s3c2xx0/uart_cpu_s3c2410.c 256196 2013-10-09 17:05:02Z dim $"); 30 31#include <sys/param.h> 32#include <sys/systm.h> 33#include <sys/bus.h> 34#include <sys/cons.h> 35#include <machine/bus.h> 36 37#include <dev/uart/uart.h> 38#include <dev/uart/uart_cpu.h> 39 40#include <arm/s3c2xx0/s3c2xx0var.h> 41 42bus_space_tag_t uart_bus_space_io; 43bus_space_tag_t uart_bus_space_mem; 44 45extern struct uart_ops uart_s3c2410_ops; 46 47vm_offset_t s3c2410_uart_vaddr; 48unsigned int s3c2410_pclk; 49 50int 51uart_cpu_eqres(struct uart_bas *b1, struct uart_bas *b2) 52{ 53 return ((b1->bsh == b2->bsh && b1->bst == b2->bst) ? 1 : 0); 54} 55 56int 57uart_cpu_getdev(int devtype, struct uart_devinfo *di) 58{ 59 if (devtype != UART_DEV_CONSOLE) 60 return (ENXIO); 61 62 di->ops = uart_getops(&uart_s3c2410_class); 63 di->bas.chan = 0; 64 di->bas.bst = &s3c2xx0_bs_tag; 65 di->bas.bsh = s3c2410_uart_vaddr; 66 di->bas.regshft = 0; 67 di->bas.rclk = s3c2410_pclk; 68 di->baudrate = 115200; 69 di->databits = 8; 70 di->stopbits = 1; 71 di->parity = UART_PARITY_NONE; 72 uart_bus_space_io = &s3c2xx0_bs_tag; 73 uart_bus_space_mem = NULL; 74 75 return (0); 76} 77