diff options
Diffstat (limited to 'arch/arm/plat-s3c/dev-i2c1.c')
-rw-r--r-- | arch/arm/plat-s3c/dev-i2c1.c | 68 |
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 new file mode 100644 index 000000000000..9658fb0aec95 --- /dev/null +++ b/arch/arm/plat-s3c/dev-i2c1.c | |||
@@ -0,0 +1,68 @@ | |||
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 | |||
25 | static 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 | |||
38 | struct 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 | |||
45 | static 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 | |||
54 | void __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 | } | ||