1/* linux/arch/arm/plat-s3c/dev-i2c0.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 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/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 27static struct resource s3c_i2c_resource[] = { 28 [0] = { 29 .start = S3C_PA_IIC, 30 .end = S3C_PA_IIC + SZ_4K - 1, 31 .flags = IORESOURCE_MEM, 32 }, 33 [1] = { 34 .start = IRQ_IIC, 35 .end = IRQ_IIC, 36 .flags = IORESOURCE_IRQ, 37 }, 38}; 39 40struct platform_device s3c_device_i2c0 = { 41 .name = "s3c2410-i2c", 42#ifdef CONFIG_S3C_DEV_I2C1 43 .id = 0, 44#else 45 .id = -1, 46#endif 47 .num_resources = ARRAY_SIZE(s3c_i2c_resource), 48 .resource = s3c_i2c_resource, 49}; 50 51static struct s3c2410_platform_i2c default_i2c_data0 __initdata = { 52 .flags = 0, 53 .slave_addr = 0x10, 54 .frequency = 100*1000, 55 .sda_delay = 100, 56}; 57 58void __init s3c_i2c0_set_platdata(struct s3c2410_platform_i2c *pd) 59{ 60 struct s3c2410_platform_i2c *npd; 61 62 if (!pd) 63 pd = &default_i2c_data0; 64 65 npd = kmemdup(pd, sizeof(struct s3c2410_platform_i2c), GFP_KERNEL); 66 if (!npd) 67 printk(KERN_ERR "%s: no memory for platform data\n", __func__); 68 else if (!npd->cfg_gpio) 69 npd->cfg_gpio = s3c_i2c0_cfg_gpio; 70 71 s3c_device_i2c0.dev.platform_data = npd; 72} 73