drivers/i2c/busses/i2c-sibyte.c

   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");