2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
6 * Copyright (C) 2007 Ralf Baechle (ralf@linux-mips.org)
8 * Copyright (C) 2009 Lemote, Inc.
9 * Author: Yan hua (yanhua@lemote.com)
10 * Author: Wu Zhangjin (wuzj@lemote.com)
14 #include <linux/init.h>
15 #include <linux/serial_8250.h>
17 #include <asm/bootinfo.h>
26 .iotype = UPIO_PORT, \
27 .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST, \
33 .irq = MIPS_CPU_IRQ_BASE + (int), \
36 .membase = (void __iomem *)NULL, \
37 .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST, \
41 static struct plat_serial8250_port uart8250_data[][2] = {
42 [MACH_LOONGSON_UNKNOWN] {},
43 [MACH_LEMOTE_FL2E] {PORT(4), {} },
44 [MACH_LEMOTE_FL2F] {PORT(3), {} },
45 [MACH_LEMOTE_ML2F7] {PORT_M(3), {} },
46 [MACH_LEMOTE_YL2F89] {PORT_M(3), {} },
47 [MACH_DEXXON_GDIUM2F10] {PORT_M(3), {} },
48 [MACH_LOONGSON_END] {},
51 static struct platform_device uart8250_device = {
53 .id = PLAT8250_DEV_PLATFORM,
56 static int __init serial_init(void)
58 if (uart8250_data[mips_machtype][0].iotype == UPIO_MEM)
59 uart8250_data[mips_machtype][0].membase =
60 (void __iomem *)_loongson_uart_base;
61 else if (uart8250_data[mips_machtype][0].iotype == UPIO_PORT)
62 uart8250_data[mips_machtype][0].iobase =
63 uart8250_base[mips_machtype] - LOONGSON_PCIIO_BASE;
65 uart8250_device.dev.platform_data = uart8250_data[mips_machtype];
67 return platform_device_register(&uart8250_device);
70 device_initcall(serial_init);