1/* 2 * Serial Device Initialisation for Au1x00 3 * 4 * (C) Copyright Embedded Alley Solutions, Inc 2005 5 * Author: Pantelis Antoniou <pantelis@embeddedalley.com> 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License as published by 9 * the Free Software Foundation; either version 2 of the License, or 10 * (at your option) any later version. 11 */ 12 13#include <linux/errno.h> 14#include <linux/init.h> 15#include <linux/interrupt.h> 16#include <linux/ioport.h> 17#include <linux/module.h> 18#include <linux/serial_core.h> 19#include <linux/signal.h> 20#include <linux/slab.h> 21#include <linux/types.h> 22 23#include <linux/serial_8250.h> 24 25#include <asm/mach-au1x00/au1000.h> 26 27#include "8250.h" 28 29#define PORT(_base, _irq) \ 30 { \ 31 .iobase = _base, \ 32 .membase = (void __iomem *)_base,\ 33 .mapbase = CPHYSADDR(_base), \ 34 .irq = _irq, \ 35 .uartclk = 0, /* filled */ \ 36 .regshift = 2, \ 37 .iotype = UPIO_AU, \ 38 .flags = UPF_SKIP_TEST \ 39 } 40 41static struct plat_serial8250_port au1x00_data[] = { 42#if defined(CONFIG_SOC_AU1000) 43 PORT(UART0_ADDR, AU1000_UART0_INT), 44 PORT(UART1_ADDR, AU1000_UART1_INT), 45 PORT(UART2_ADDR, AU1000_UART2_INT), 46 PORT(UART3_ADDR, AU1000_UART3_INT), 47#elif defined(CONFIG_SOC_AU1500) 48 PORT(UART0_ADDR, AU1500_UART0_INT), 49 PORT(UART3_ADDR, AU1500_UART3_INT), 50#elif defined(CONFIG_SOC_AU1100) 51 PORT(UART0_ADDR, AU1100_UART0_INT), 52 PORT(UART1_ADDR, AU1100_UART1_INT), 53 /* The internal UART2 does not exist on the AU1100 processor. */ 54 PORT(UART3_ADDR, AU1100_UART3_INT), 55#elif defined(CONFIG_SOC_AU1550) 56 PORT(UART0_ADDR, AU1550_UART0_INT), 57 PORT(UART1_ADDR, AU1550_UART1_INT), 58 PORT(UART3_ADDR, AU1550_UART3_INT), 59#elif defined(CONFIG_SOC_AU1200) 60 PORT(UART0_ADDR, AU1200_UART0_INT), 61 PORT(UART1_ADDR, AU1200_UART1_INT), 62#endif 63 { }, 64}; 65 66static struct platform_device au1x00_device = { 67 .name = "serial8250", 68 .id = PLAT8250_DEV_AU1X00, 69 .dev = { 70 .platform_data = au1x00_data, 71 }, 72}; 73 74static int __init au1x00_init(void) 75{ 76 int i; 77 unsigned int uartclk; 78 79 /* get uart clock */ 80 uartclk = get_au1x00_uart_baud_base() * 16; 81 82 /* fill up uartclk */ 83 for (i = 0; au1x00_data[i].flags ; i++) 84 au1x00_data[i].uartclk = uartclk; 85 86 return platform_device_register(&au1x00_device); 87} 88 89static void __exit au1x00_exit(void) 90{ 91 platform_device_unregister(&au1x00_device); 92} 93 94module_init(au1x00_init); 95module_exit(au1x00_exit); 96 97MODULE_AUTHOR("Pantelis Antoniou <pantelis@embeddedalley.com>"); 98MODULE_DESCRIPTION("8250 serial probe module for Au1x000 cards"); 99MODULE_LICENSE("GPL"); 100