diff options
Diffstat (limited to 'arch/arm/plat-s3c/dev-i2c0.c')
-rw-r--r-- | arch/arm/plat-s3c/dev-i2c0.c | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/arch/arm/plat-s3c/dev-i2c0.c b/arch/arm/plat-s3c/dev-i2c0.c new file mode 100644 index 000000000000..2c0128c77c6e --- /dev/null +++ b/arch/arm/plat-s3c/dev-i2c0.c | |||
@@ -0,0 +1,71 @@ | |||
1 | /* linux/arch/arm/plat-s3c/dev-i2c0.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 0 | ||
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_IIC, | ||
28 | .end = S3C_PA_IIC + SZ_4K - 1, | ||
29 | .flags = IORESOURCE_MEM, | ||
30 | }, | ||
31 | [1] = { | ||
32 | .start = IRQ_IIC, | ||
33 | .end = IRQ_IIC, | ||
34 | .flags = IORESOURCE_IRQ, | ||
35 | }, | ||
36 | }; | ||
37 | |||
38 | struct platform_device s3c_device_i2c0 = { | ||
39 | .name = "s3c2410-i2c", | ||
40 | #ifdef CONFIG_S3C_DEV_I2C1 | ||
41 | .id = 0, | ||
42 | #else | ||
43 | .id = -1, | ||
44 | #endif | ||
45 | .num_resources = ARRAY_SIZE(s3c_i2c_resource), | ||
46 | .resource = s3c_i2c_resource, | ||
47 | }; | ||
48 | |||
49 | static struct s3c2410_platform_i2c default_i2c_data0 __initdata = { | ||
50 | .flags = 0, | ||
51 | .slave_addr = 0x10, | ||
52 | .bus_freq = 100*1000, | ||
53 | .max_freq = 400*1000, | ||
54 | .sda_delay = S3C2410_IICLC_SDA_DELAY5 | S3C2410_IICLC_FILTER_ON, | ||
55 | }; | ||
56 | |||
57 | void __init s3c_i2c0_set_platdata(struct s3c2410_platform_i2c *pd) | ||
58 | { | ||
59 | struct s3c2410_platform_i2c *npd; | ||
60 | |||
61 | if (!pd) | ||
62 | pd = &default_i2c_data0; | ||
63 | |||
64 | npd = kmemdup(pd, sizeof(struct s3c2410_platform_i2c), GFP_KERNEL); | ||
65 | if (!npd) | ||
66 | printk(KERN_ERR "%s: no memory for platform data\n", __func__); | ||
67 | else if (!npd->cfg_gpio) | ||
68 | npd->cfg_gpio = s3c_i2c0_cfg_gpio; | ||
69 | |||
70 | s3c_device_i2c0.dev.platform_data = npd; | ||
71 | } | ||