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-rw-r--r--arch/arm/plat-s3c/dev-i2c1.c68
1 files changed, 68 insertions, 0 deletions
diff --git a/arch/arm/plat-s3c/dev-i2c1.c b/arch/arm/plat-s3c/dev-i2c1.c
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1/* linux/arch/arm/plat-s3c/dev-i2c1.c
2 *
3 * Copyright 2008 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/kernel.h>
15#include <linux/string.h>
16#include <linux/platform_device.h>
17
18#include <mach/map.h>
19
20#include <plat/regs-iic.h>
21#include <plat/iic.h>
22#include <plat/devs.h>
23#include <plat/cpu.h>
24
25static struct resource s3c_i2c_resource[] = {
26 [0] = {
27 .start = S3C_PA_IIC1,
28 .end = S3C_PA_IIC1 + SZ_4K - 1,
29 .flags = IORESOURCE_MEM,
30 },
31 [1] = {
32 .start = IRQ_IIC1,
33 .end = IRQ_IIC1,
34 .flags = IORESOURCE_IRQ,
35 },
36};
37
38struct platform_device s3c_device_i2c1 = {
39 .name = "s3c2410-i2c",
40 .id = 1,
41 .num_resources = ARRAY_SIZE(s3c_i2c_resource),
42 .resource = s3c_i2c_resource,
43};
44
45static struct s3c2410_platform_i2c default_i2c_data1 __initdata = {
46 .flags = 0,
47 .bus_num = 1,
48 .slave_addr = 0x10,
49 .bus_freq = 100*1000,
50 .max_freq = 400*1000,
51 .sda_delay = S3C2410_IICLC_SDA_DELAY5 | S3C2410_IICLC_FILTER_ON,
52};
53
54void __init s3c_i2c1_set_platdata(struct s3c2410_platform_i2c *pd)
55{
56 struct s3c2410_platform_i2c *npd;
57
58 if (!pd)
59 pd = &default_i2c_data1;
60
61 npd = kmemdup(pd, sizeof(struct s3c2410_platform_i2c), GFP_KERNEL);
62 if (!npd)
63 printk(KERN_ERR "%s: no memory for platform data\n", __func__);
64 else if (!npd->cfg_gpio)
65 npd->cfg_gpio = s3c_i2c1_cfg_gpio;
66
67 s3c_device_i2c1.dev.platform_data = npd;
68}