xref: /openbmc/linux/drivers/i2c/busses/i2c-sibyte.c (revision 87c2ce3b)
1 /*
2  * Copyright (C) 2004 Steven J. Hill
3  * Copyright (C) 2001,2002,2003 Broadcom Corporation
4  *
5  * This program is free software; you can redistribute it and/or
6  * modify it under the terms of the GNU General Public License
7  * as published by the Free Software Foundation; either version 2
8  * of the License, or (at your option) any later version.
9  *
10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13  * GNU General Public License for more details.
14  *
15  * You should have received a copy of the GNU General Public License
16  * along with this program; if not, write to the Free Software
17  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
18  */
19 
20 #include <linux/module.h>
21 #include <linux/i2c-algo-sibyte.h>
22 #include <asm/sibyte/sb1250_regs.h>
23 #include <asm/sibyte/sb1250_smbus.h>
24 
25 static struct i2c_algo_sibyte_data sibyte_board_data[2] = {
26 	{ NULL, 0, (void *) (CKSEG1+A_SMB_BASE(0)) },
27 	{ NULL, 1, (void *) (CKSEG1+A_SMB_BASE(1)) }
28 };
29 
30 static struct i2c_adapter sibyte_board_adapter[2] = {
31 	{
32 		.owner		= THIS_MODULE,
33 		.id		= I2C_HW_SIBYTE,
34 		.class		= I2C_CLASS_HWMON,
35 		.algo		= NULL,
36 		.algo_data	= &sibyte_board_data[0],
37 		.name		= "SiByte SMBus 0",
38 	},
39 	{
40 		.owner		= THIS_MODULE,
41 		.id		= I2C_HW_SIBYTE,
42 		.class		= I2C_CLASS_HWMON,
43 		.algo		= NULL,
44 		.algo_data	= &sibyte_board_data[1],
45 		.name		= "SiByte SMBus 1",
46 	},
47 };
48 
49 static int __init i2c_sibyte_init(void)
50 {
51 	printk("i2c-swarm.o: i2c SMBus adapter module for SiByte board\n");
52 	if (i2c_sibyte_add_bus(&sibyte_board_adapter[0], K_SMB_FREQ_100KHZ) < 0)
53 		return -ENODEV;
54 	if (i2c_sibyte_add_bus(&sibyte_board_adapter[1], K_SMB_FREQ_400KHZ) < 0)
55 		return -ENODEV;
56 	return 0;
57 }
58 
59 static void __exit i2c_sibyte_exit(void)
60 {
61 	i2c_sibyte_del_bus(&sibyte_board_adapter[0]);
62 	i2c_sibyte_del_bus(&sibyte_board_adapter[1]);
63 }
64 
65 module_init(i2c_sibyte_init);
66 module_exit(i2c_sibyte_exit);
67 
68 MODULE_AUTHOR("Kip Walker <kwalker@broadcom.com>, Steven J. Hill <sjhill@realitydiluted.com>");
69 MODULE_DESCRIPTION("SMBus adapter routines for SiByte boards");
70 MODULE_LICENSE("GPL");
71