| Ben Dooks | 3e1b776 | 2008-10-31 16:14:40 +0000 | [diff] [blame^] | 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 | .id = -1, |
| 41 | .num_resources = ARRAY_SIZE(s3c_i2c_resource), |
| 42 | .resource = s3c_i2c_resource, |
| 43 | }; |
| 44 | |
| 45 | struct s3c2410_platform_i2c default_i2c_data __initdata = { |
| 46 | .flags = 0, |
| 47 | .slave_addr = 0x10, |
| 48 | .bus_freq = 100*1000, |
| 49 | .max_freq = 400*1000, |
| 50 | .sda_delay = S3C2410_IICLC_SDA_DELAY5 | S3C2410_IICLC_FILTER_ON, |
| 51 | }; |
| 52 | |
| 53 | void __init s3c_i2c0_set_platdata(struct s3c2410_platform_i2c *pd) |
| 54 | { |
| 55 | struct s3c2410_platform_i2c *npd; |
| 56 | |
| 57 | if (!pd) |
| 58 | pd = &default_i2c_data; |
| 59 | |
| 60 | npd = kmemdup(pd, sizeof(struct s3c2410_platform_i2c), GFP_KERNEL); |
| 61 | if (!npd) |
| 62 | printk(KERN_ERR "%s: no memory for platform data\n", __func__); |
| 63 | else if (!npd->cfg_gpio) |
| 64 | npd->cfg_gpio = s3c_i2c0_cfg_gpio; |
| 65 | |
| 66 | s3c_device_i2c0.dev.platform_data = npd; |
| 67 | } |