blob: 2b48fab6f0c6645dc9b44efe6deab75be0b7150f [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/* linux/drivers/serial/bast_sio.c
2 *
3 * Copyright (c) 2004 Simtec Electronics
4 * Ben Dooks <ben@simtec.co.uk>
5 *
6 * http://www.simtec.co.uk/products/EB2410ITX/
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11 *
12 * Modifications:
13 * 23-Sep-2004 BJD Added copyright header
14 * 23-Sep-2004 BJD Added serial port remove code
15*/
16
17#include <linux/module.h>
18#include <linux/config.h>
19#include <linux/kernel.h>
20#include <linux/init.h>
21#include <linux/tty.h>
22#include <linux/serial.h>
23#include <linux/serial_core.h>
24#include <linux/types.h>
25
26#include <asm/io.h>
27#include <asm/serial.h>
28#include <asm/mach-types.h>
29
30#include <asm/arch/map.h>
31#include <asm/arch/irqs.h>
32#include <asm/arch/bast-map.h>
33#include <asm/arch/bast-irq.h>
34
35static int __init serial_bast_register(unsigned long port, unsigned int irq)
36{
37 struct serial_struct serial_req;
38
39 serial_req.flags = UPF_AUTOPROBE | UPF_SHARE_IRQ;
40 serial_req.baud_base = BASE_BAUD;
41 serial_req.irq = irq;
42 serial_req.io_type = UPIO_MEM;
43 serial_req.iomap_base = port;
44 serial_req.iomem_base = ioremap(port, 0x10);
45 serial_req.iomem_reg_shift = 0;
46
47 return register_serial(&serial_req);
48}
49
50#define SERIAL_BASE (S3C2410_CS2 + BAST_PA_SUPERIO)
51
52static int port[2] = { -1, -1 };
53
54static int __init serial_bast_init(void)
55{
56 if (machine_is_bast()) {
57 port[0] = serial_bast_register(SERIAL_BASE + 0x2f8, IRQ_PCSERIAL1);
58 port[1] = serial_bast_register(SERIAL_BASE + 0x3f8, IRQ_PCSERIAL2);
59 }
60
61 return 0;
62}
63
64static void __exit serial_bast_exit(void)
65{
66 if (port[0] != -1)
67 unregister_serial(port[0]);
68 if (port[1] != -1)
69 unregister_serial(port[1]);
70}
71
72
73module_init(serial_bast_init);
74module_exit(serial_bast_exit);
75
76MODULE_LICENSE("GPL");
77MODULE_AUTHOR("Ben Dooks, ben@simtec.co.uk");
78MODULE_DESCRIPTION("BAST Onboard Serial setup");
79
80