1/* 2 * Registration of WRPPMC UART platform device. 3 * 4 * Copyright (C) 2007 Yoichi Yuasa <yuasa@linux-mips.org> 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; either version 2 of the License, or 9 * (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, write to the Free Software 18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 19 */ 20#include <linux/errno.h> 21#include <linux/init.h> 22#include <linux/ioport.h> 23#include <linux/platform_device.h> 24#include <linux/serial_8250.h> 25 26#include <asm/gt64120.h> 27 28static struct resource wrppmc_uart_resource[] __initdata = { 29 { 30 .start = WRPPMC_UART16550_BASE, 31 .end = WRPPMC_UART16550_BASE + 7, 32 .flags = IORESOURCE_MEM, 33 }, 34 { 35 .start = WRPPMC_UART16550_IRQ, 36 .end = WRPPMC_UART16550_IRQ, 37 .flags = IORESOURCE_IRQ, 38 }, 39}; 40 41static struct plat_serial8250_port wrppmc_serial8250_port[] = { 42 { 43 .irq = WRPPMC_UART16550_IRQ, 44 .uartclk = WRPPMC_UART16550_CLOCK, 45 .iotype = UPIO_MEM, 46 .flags = UPF_IOREMAP | UPF_SKIP_TEST, 47 .mapbase = WRPPMC_UART16550_BASE, 48 }, 49 {}, 50}; 51 52static __init int wrppmc_uart_add(void) 53{ 54 struct platform_device *pdev; 55 int retval; 56 57 pdev = platform_device_alloc("serial8250", -1); 58 if (!pdev) 59 return -ENOMEM; 60 61 pdev->id = PLAT8250_DEV_PLATFORM; 62 pdev->dev.platform_data = wrppmc_serial8250_port; 63 64 retval = platform_device_add_resources(pdev, wrppmc_uart_resource, 65 ARRAY_SIZE(wrppmc_uart_resource)); 66 if (retval) 67 goto err_free_device; 68 69 retval = platform_device_add(pdev); 70 if (retval) 71 goto err_free_device; 72 73 return 0; 74 75err_free_device: 76 platform_device_put(pdev); 77 78 return retval; 79} 80device_initcall(wrppmc_uart_add); 81