1 /* 1
2 * This file is subject to the terms and condi
3 * License. See the file "COPYING" in the mai
4 * for more details.
5 *
6 * Copyright (C) 2007 Ralf Baechle (ralf@linux
7 *
8 * Copyright (C) 2009 Lemote, Inc.
9 * Author: Yan hua (yanhua@lemote.com)
10 * Author: Wu Zhangjin (wuzhangjin@gmail.com)
11 */
12
13 #include <linux/io.h>
14 #include <linux/module.h>
15 #include <linux/serial_8250.h>
16
17 #include <asm/bootinfo.h>
18
19 #include <loongson.h>
20 #include <machine.h>
21
22 #define PORT(int, clk) \
23 {
24 .irq = int,
25 .uartclk = clk,
26 .iotype = UPIO_PORT,
27 .flags = UPF_BOOT_AUTOCONF |
28 .regshift = 0,
29 }
30
31 #define PORT_M(int, clk)
32 {
33 .irq = MIPS_CPU_IRQ_BASE +
34 .uartclk = clk,
35 .iotype = UPIO_MEM,
36 .membase = (void __iomem *)NULL
37 .flags = UPF_BOOT_AUTOCONF |
38 .regshift = 0,
39 }
40
41 static struct plat_serial8250_port uart8250_da
42 [MACH_LOONGSON_UNKNOWN] = {},
43 [MACH_LEMOTE_FL2E] = PORT(4, 1843
44 [MACH_LEMOTE_FL2F] = PORT(3, 1843
45 [MACH_LEMOTE_ML2F7] = PORT_M(3, 36
46 [MACH_LEMOTE_YL2F89] = PORT_M(3, 36
47 [MACH_DEXXON_GDIUM2F10] = PORT_M(3, 36
48 [MACH_LEMOTE_NAS] = PORT_M(3, 36
49 [MACH_LEMOTE_LL2F] = PORT(3, 1843
50 [MACH_LOONGSON_END] = {},
51 };
52
53 static struct platform_device uart8250_device
54 .name = "serial8250",
55 .id = PLAT8250_DEV_PLATFORM,
56 };
57
58 static int __init serial_init(void)
59 {
60 unsigned char iotype;
61
62 iotype = uart8250_data[mips_machtype].
63
64 if (UPIO_MEM == iotype) {
65 uart8250_data[mips_machtype].m
66 loongson_uart_base;
67 uart8250_data[mips_machtype].m
68 (void __iomem *)_loong
69 }
70 else if (UPIO_PORT == iotype)
71 uart8250_data[mips_machtype].i
72 loongson_uart_base - L
73
74 memset(&uart8250_data[mips_machtype +
75 sizeof(struct plat_ser
76 uart8250_device.dev.platform_data = &u
77
78 return platform_device_register(&uart8
79 }
80 module_init(serial_init);
81
82 static void __exit serial_exit(void)
83 {
84 platform_device_unregister(&uart8250_d
85 }
86 module_exit(serial_exit);
87
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