1 /* linux/arch/arm/plat-s3c/dev-i2c1.c
2 *
3 * Copyright 2008-2009 Simtec Electronics
4 * Ben Dooks <ben@simtec.co.uk>
5 * http://armlinux.simtec.co.uk/
6 *
7 * S3C series device definition for i2c device 1
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
12 */
13
14 #include <linux/gfp.h>
15 #include <linux/kernel.h>
16 #include <linux/string.h>
17 #include <linux/platform_device.h>
18
19 #include <mach/irqs.h>
20 #include <mach/map.h>
21
22 #include <plat/regs-iic.h>
23 #include <plat/iic.h>
24 #include <plat/devs.h>
25 #include <plat/cpu.h>
26
27 static struct resource s3c_i2c_resource[] = {
28 [0] = {
29 .start = S3C_PA_IIC1,
30 .end = S3C_PA_IIC1 + SZ_4K - 1,
31 .flags = IORESOURCE_MEM,
32 },
33 [1] = {
34 .start = IRQ_IIC1,
35 .end = IRQ_IIC1,
36 .flags = IORESOURCE_IRQ,
37 },
38 };
39
40 struct platform_device s3c_device_i2c1 = {
41 .name = "s3c2410-i2c",
42 .id = 1,
43 .num_resources = ARRAY_SIZE(s3c_i2c_resource),
44 .resource = s3c_i2c_resource,
45 };
46
47 static struct s3c2410_platform_i2c default_i2c_data1 __initdata = {
48 .flags = 0,
49 .bus_num = 1,
50 .slave_addr = 0x10,
51 .frequency = 100*1000,
52 .sda_delay = 100,
53 };
54
s3c_i2c1_set_platdata(struct s3c2410_platform_i2c * pd)55 void __init s3c_i2c1_set_platdata(struct s3c2410_platform_i2c *pd)
56 {
57 struct s3c2410_platform_i2c *npd;
58
59 if (!pd)
60 pd = &default_i2c_data1;
61
62 npd = kmemdup(pd, sizeof(struct s3c2410_platform_i2c), GFP_KERNEL);
63 if (!npd)
64 printk(KERN_ERR "%s: no memory for platform data\n", __func__);
65 else if (!npd->cfg_gpio)
66 npd->cfg_gpio = s3c_i2c1_cfg_gpio;
67
68 s3c_device_i2c1.dev.platform_data = npd;
69 }
70