From 39baf1740b77c608c783359769788ad693031509 Mon Sep 17 00:00:00 2001
From: =?utf8?q?=E6=9F=AF=E9=A3=9E=E9=9B=84?= <kfx@rock-chips.com>
Date: Tue, 11 May 2010 14:03:38 +0000
Subject: [PATCH] add i2c

---
 arch/arm/mach-rk2818/i2c.c | 135 +++++++++++++++++++++++++++++++++++++
 1 file changed, 135 insertions(+)
 create mode 100755 arch/arm/mach-rk2818/i2c.c

diff --git a/arch/arm/mach-rk2818/i2c.c b/arch/arm/mach-rk2818/i2c.c
new file mode 100755
index 000000000000..2a6a438f9877
--- /dev/null
+++ b/arch/arm/mach-rk2818/i2c.c
@@ -0,0 +1,135 @@
+/* arch/arm/mach-rk2818/i2c.c
+ *
+ * Copyright (C) 2010 ROCKCHIP, Inc.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/i2c.h>
+#include <linux/platform_device.h>
+#include <mach/i2c.h>
+#include <mach/iomux.h>
+
+#include <mach/irqs.h>
+#include "devices.h"
+
+/* i2c0 */
+static struct rk2818_i2c_platform_data default_i2c0_data __initdata = { 
+	.bus_num    = 0,
+	.flags      = 0,
+	.slave_addr = 0xff,
+	.scl_rate  = 400*1000,
+	.clk_id  = "i2c0",
+};
+/* i2c1 */
+static struct rk2818_i2c_platform_data default_i2c1_data __initdata = { 
+	.bus_num    = 1,
+	.flags      = 0,
+	.slave_addr = 0xff,
+	.scl_rate  = 400*1000,
+	.clk_id  = "i2c1",
+};
+
+static struct i2c_board_info __initdata board_i2c0_devices[] = {
+#if defined (CONFIG_RK1000_CONTROL)
+	{
+		.type    		= "rk1000_control",
+		.addr           = 0x40,
+		.flags			= 0,
+	},
+#endif
+
+#if defined (CONFIG_RK1000_TVOUT)
+	{
+		.type    		= "rk1000_tvout",
+		.addr           = 0x42,
+		.flags			= 0,
+	},
+#endif
+#if defined (CONFIG_SND_SOC_RK1000)
+	{
+		.type    		= "rk1000_i2c_codec",
+		.addr           = 0x60,
+		.flags			= 0,
+	},
+#endif
+	{}
+};
+static struct i2c_board_info __initdata board_i2c1_devices[] = {
+#if defined (CONFIG_RTC_HYM8563)
+	{
+		.type    		= "rtc_hym8563",
+		.addr           = 0x51,
+		.flags			= 0,
+	},
+#endif
+#if defined (CONFIG_FM_QN8006)
+	{
+		.type    		= "fm_qn8006",
+		.addr           = 0x2b, 
+		.flags			= 0,
+	},
+#endif
+	{}
+};
+
+static void rk2818_i2c0_cfg_gpio(struct platform_device *dev)
+{
+	rk2818_mux_api_set(GPIOE_I2C0_SEL_NAME, IOMUXA_I2C0);
+}
+
+static void rk2818_i2c1_cfg_gpio(struct platform_device *dev)
+{
+	rk2818_mux_api_set(GPIOE_U1IR_I2C1_NAME, IOMUXA_I2C1);
+}
+
+
+static void __init rk2818_i2c0_set_platdata(struct rk2818_i2c_platform_data *pd)
+{
+	struct rk2818_i2c_platform_data *npd;
+
+	if (!pd)
+		pd = &default_i2c0_data;
+
+	npd = kmemdup(pd, sizeof(struct rk2818_i2c_platform_data), GFP_KERNEL);
+	if (!npd)
+		printk(KERN_ERR "%s: no memory for platform data\n", __func__);
+	else if (!npd->cfg_gpio)
+		npd->cfg_gpio = rk2818_i2c0_cfg_gpio;
+
+	rk2818_device_i2c0.dev.platform_data = npd;
+}
+static void __init rk2818_i2c1_set_platdata(struct rk2818_i2c_platform_data *pd)
+{
+	struct rk2818_i2c_platform_data *npd;
+
+	if (!pd)
+		pd = &default_i2c1_data;
+
+	npd = kmemdup(pd, sizeof(struct rk2818_i2c_platform_data), GFP_KERNEL);
+	if (!npd)
+		printk(KERN_ERR "%s: no memory for platform data\n", __func__);
+	else if (!npd->cfg_gpio)
+		npd->cfg_gpio = rk2818_i2c1_cfg_gpio;
+
+	rk2818_device_i2c1.dev.platform_data = npd;
+}
+
+void __init rk2818_i2c_board_init(void)
+{
+	rk2818_i2c0_set_platdata(NULL);
+	rk2818_i2c1_set_platdata(NULL);
+	i2c_register_board_info(0, board_i2c0_devices,
+			ARRAY_SIZE(board_i2c0_devices));
+	i2c_register_board_info(1, board_i2c1_devices,
+			ARRAY_SIZE(board_i2c1_devices));
+}
-- 
2.34.1