ralink: bump to the target to v4.3

Signed-off-by: John Crispin <blogic@openwrt.org>

SVN-Revision: 47831

1 files changed, 0 insertions, 329 deletions

diff --git a/target/linux/ramips/patches-3.18/0074-i2c-MIPS-add-mt7621-I2C-driver.patch b/target/linux/ramips/patches-3.18/0074-i2c-MIPS-add-mt7621-I2C-driver.patch
deleted file mode 100644
index 9b9a72bc7b..0000000000
--- a/target/linux/ramips/patches-3.18/0074-i2c-MIPS-add-mt7621-I2C-driver.patch
+++ /dev/null
@@ -1,329 +0,0 @@
---- a/drivers/i2c/busses/Kconfig
-+++ b/drivers/i2c/busses/Kconfig
-@@ -715,6 +715,10 @@ config I2C_RALINK
- 	tristate "Ralink I2C Controller"
- 	select OF_I2C
- 
-+config I2C_MT7621
-+	tristate "MT7621 I2C Controller"
-+	select OF_I2C
-+
- config HAVE_S3C2410_I2C
- 	bool
- 	help
---- a/drivers/i2c/busses/Makefile
-+++ b/drivers/i2c/busses/Makefile
-@@ -67,6 +67,7 @@ obj-$(CONFIG_I2C_PUV3)		+= i2c-puv3.o
- obj-$(CONFIG_I2C_PXA)		+= i2c-pxa.o
- obj-$(CONFIG_I2C_PXA_PCI)	+= i2c-pxa-pci.o
- obj-$(CONFIG_I2C_RALINK)	+= i2c-ralink.o
-+obj-$(CONFIG_I2C_MT7621)	+= i2c-mt7621.o
- obj-$(CONFIG_I2C_QUP)		+= i2c-qup.o
- obj-$(CONFIG_I2C_RIIC)		+= i2c-riic.o
- obj-$(CONFIG_I2C_RK3X)		+= i2c-rk3x.o
---- /dev/null
-+++ b/drivers/i2c/busses/i2c-mt7621.c
-@@ -0,0 +1,303 @@
-+/*
-+ * drivers/i2c/busses/i2c-mt7621.c
-+ *
-+ * Copyright (C) 2013 Steven Liu <steven_liu@mediatek.com>
-+ *
-+ * Improve driver for i2cdetect from i2c-tools to detect i2c devices on the bus.
-+ * (C) 2014 Sittisak <sittisaks@hotmail.com>
-+ *
-+ * 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/interrupt.h>
-+#include <linux/kernel.h>
-+#include <linux/module.h>
-+#include <linux/reset.h>
-+#include <linux/delay.h>
-+#include <linux/slab.h>
-+#include <linux/init.h>
-+#include <linux/errno.h>
-+#include <linux/platform_device.h>
-+#include <linux/i2c.h>
-+#include <linux/io.h>
-+#include <linux/err.h>
-+
-+#include <asm/mach-ralink/ralink_regs.h>
-+
-+#define REG_CONFIG_REG                       0x00
-+#define REG_CLKDIV_REG                       0x04
-+#define REG_DEVADDR_REG                      0x08
-+#define REG_ADDR_REG                         0x0C
-+#define REG_DATAOUT_REG                      0x10
-+#define REG_DATAIN_REG                       0x14
-+#define REG_STATUS_REG                       0x18
-+#define REG_STARTXFR_REG                     0x1C
-+#define REG_BYTECNT_REG                      0x20
-+#define REG_SM0_IS_AUTOMODE                  0x28
-+#define REG_SM0CTL0                          0x40
-+
-+
-+#define I2C_STARTERR                         0x10
-+#define I2C_ACKERR                           0x08
-+#define I2C_DATARDY                          0x04
-+#define I2C_SDOEMPTY                         0x02
-+#define I2C_BUSY                             0x01
-+
-+/* I2C_CFG register bit field */
-+#define I2C_CFG_ADDRLEN_8                    (7<<5)	/* 8 bits */
-+#define I2C_CFG_DEVADLEN_7                   (6<<2)
-+#define I2C_CFG_ADDRDIS                      BIT(1)
-+#define I2C_CFG_DEVADDIS                     BIT(0)
-+
-+#define I2C_CFG_DEFAULT	(I2C_CFG_ADDRLEN_8 | \
-+		I2C_CFG_DEVADLEN_7 | \
-+		I2C_CFG_ADDRDIS)
-+
-+#define I2C_RETRY                            0x1000
-+
-+#define CLKDIV_VALUE                         333
-+#define i2c_busy_loop                        (CLKDIV_VALUE*30)
-+
-+#define READ_CMD                             0x01
-+#define WRITE_CMD                            0x00
-+#define READ_BLOCK                           16
-+
-+#define SM0_ODRAIN                           BIT(31)
-+#define SM0_VSYNC_MODE                       BIT(28)
-+#define SM0_CLK_DIV                          (CLKDIV_VALUE << 16)
-+#define SM0_WAIT_LEVEL                       BIT(6)
-+#define SM0_EN                               BIT(1)
-+
-+#define SM0_CFG_DEFUALT (SM0_ODRAIN | SM0_VSYNC_MODE | \
-+                        SM0_CLK_DIV | SM0_WAIT_LEVEL | \
-+                        SM0_EN) 
-+/***********************************************************/
-+
-+static void __iomem *membase;
-+static struct i2c_adapter *adapter;
-+
-+static void rt_i2c_w32(u32 val, unsigned reg)
-+{
-+	iowrite32(val, membase + reg);
-+}
-+
-+static u32 rt_i2c_r32(unsigned reg)
-+{
-+	return ioread32(membase + reg);
-+}
-+
-+static void mt7621_i2c_reset(struct i2c_adapter *a)
-+{
-+	device_reset(a->dev.parent);
-+}
-+static void mt7621_i2c_enable(struct i2c_msg *msg)
-+{
-+	rt_i2c_w32(msg->addr,REG_DEVADDR_REG);
-+	rt_i2c_w32(0,REG_ADDR_REG);
-+}
-+
-+static void i2c_master_init(struct i2c_adapter *a)
-+{
-+	mt7621_i2c_reset(a); 
-+	rt_i2c_w32(I2C_CFG_DEFAULT,REG_CONFIG_REG);    
-+	rt_i2c_w32(SM0_CFG_DEFUALT,REG_SM0CTL0);
-+	rt_i2c_w32(1,REG_SM0_IS_AUTOMODE);//auto mode
-+}
-+
-+
-+static inline int rt_i2c_wait_rx_done(void)
-+{
-+	int i=0;
-+	while((!(rt_i2c_r32(REG_STATUS_REG) & I2C_DATARDY)) && (i<i2c_busy_loop))
-+		i++;
-+	if(i>=i2c_busy_loop){
-+		pr_err("err,wait for idle timeout");
-+		return -ETIMEDOUT;
-+	}
-+	return 0;
-+}
-+
-+static inline int rt_i2c_wait_idle(void)
-+{
-+	int i=0;
-+	while((rt_i2c_r32(REG_STATUS_REG) & I2C_BUSY) && (i<i2c_busy_loop))
-+		i++;
-+	if(i>=i2c_busy_loop){
-+		pr_err("err,wait for idle timeout");
-+		return -ETIMEDOUT;
-+	}
-+	return 0;
-+}
-+
-+static inline int rt_i2c_wait_tx_done(void)
-+{
-+	int i=0;
-+	while((!(rt_i2c_r32(REG_STATUS_REG) & I2C_SDOEMPTY)) && (i<i2c_busy_loop))
-+		i++;
-+	if(i>=i2c_busy_loop){
-+		pr_err("err,wait for idle timeout");
-+		return -ETIMEDOUT;
-+	}
-+	return 0;
-+}
-+
-+static int rt_i2c_handle_msg(struct i2c_adapter *a, struct i2c_msg* msg)
-+{
-+	int i = 0, j = 0, pos = 0;
-+	int nblock = msg->len / READ_BLOCK;
-+	int rem = msg->len % READ_BLOCK;
-+
-+	if (msg->flags & I2C_M_TEN) {
-+		printk("10 bits addr not supported\n");
-+		return -EINVAL;
-+	}
-+
-+	if (msg->flags & I2C_M_RD) {
-+		for (i = 0; i < nblock; i++) {
-+			if (rt_i2c_wait_idle())
-+				goto err_timeout;
-+			rt_i2c_w32(READ_BLOCK - 1, REG_BYTECNT_REG);
-+			rt_i2c_w32(READ_CMD, REG_STARTXFR_REG);
-+			for (j = 0; j < READ_BLOCK; j++) {
-+				if (rt_i2c_wait_rx_done())
-+					goto err_timeout;
-+				msg->buf[pos++] = rt_i2c_r32(REG_DATAIN_REG);
-+			}
-+		}
-+
-+		if (rt_i2c_wait_idle())
-+		    goto err_timeout;
-+		rt_i2c_w32(rem - 1, REG_BYTECNT_REG);
-+		rt_i2c_w32(READ_CMD, REG_STARTXFR_REG);
-+		
-+		for (i = 0; i < rem; i++) {
-+			if (rt_i2c_wait_rx_done())
-+				goto err_timeout;
-+			msg->buf[pos++] = rt_i2c_r32(REG_DATAIN_REG);
-+		}
-+	} else {
-+		if (rt_i2c_wait_idle())
-+	        	goto err_timeout;
-+		rt_i2c_w32(msg->len - 1, REG_BYTECNT_REG);
-+		for (i = 0; i < msg->len; i++) {
-+			rt_i2c_w32(msg->buf[i], REG_DATAOUT_REG);
-+			if(i == 0)
-+				rt_i2c_w32(WRITE_CMD, REG_STARTXFR_REG);
-+
-+			if (rt_i2c_wait_tx_done())
-+				goto err_timeout;
-+		}
-+	}
-+
-+	return 0;
-+err_timeout:
-+	return -ETIMEDOUT;
-+}
-+
-+static int rt_i2c_master_xfer(struct i2c_adapter *a, struct i2c_msg *m, int n)
-+{
-+	int i = 0;
-+	int ret = 0;
-+	i2c_master_init(a);
-+	mt7621_i2c_enable(m);
-+
-+	for (i = 0; i != n && ret==0; i++) {
-+		ret = rt_i2c_handle_msg(a, &m[i]);
-+		if (ret) 
-+			return ret;	
-+	}
-+	return i;
-+}
-+
-+static u32 rt_i2c_func(struct i2c_adapter *a)
-+{
-+	return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL;
-+}
-+
-+static const struct i2c_algorithm rt_i2c_algo = {
-+	.master_xfer	= rt_i2c_master_xfer,
-+	.functionality	= rt_i2c_func,
-+};
-+
-+static int rt_i2c_probe(struct platform_device *pdev)
-+{
-+	struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-+	int ret;
-+
-+	adapter = devm_kzalloc(&pdev->dev,sizeof(struct i2c_adapter), GFP_KERNEL);
-+	if (!adapter) {
-+		dev_err(&pdev->dev, "failed to allocate i2c_adapter\n");
-+		return -ENOMEM;
-+	}
-+	membase = devm_ioremap_resource(&pdev->dev, res);
-+	if (IS_ERR(membase))
-+		return PTR_ERR(membase);
-+
-+	strlcpy(adapter->name, dev_name(&pdev->dev), sizeof(adapter->name));
-+
-+	adapter->owner = THIS_MODULE;
-+	adapter->nr = pdev->id;
-+	adapter->timeout = HZ;
-+	adapter->algo = &rt_i2c_algo;
-+	adapter->class = I2C_CLASS_HWMON | I2C_CLASS_SPD;
-+	adapter->dev.parent = &pdev->dev;
-+	adapter->dev.of_node = pdev->dev.of_node;
-+
-+	platform_set_drvdata(pdev, adapter);
-+	
-+	ret = i2c_add_numbered_adapter(adapter);
-+	if (ret)
-+		return ret;
-+
-+	dev_info(&pdev->dev,"loaded");
-+
-+	return 0;
-+}
-+
-+static int rt_i2c_remove(struct platform_device *pdev)
-+{
-+	platform_set_drvdata(pdev, NULL);
-+	return 0;
-+}
-+
-+static const struct of_device_id i2c_rt_dt_ids[] = {
-+	{ .compatible = "ralink,i2c-mt7621", },
-+	{ /* sentinel */ }
-+};
-+
-+MODULE_DEVICE_TABLE(of, i2c_rt_dt_ids);
-+
-+static struct platform_driver rt_i2c_driver = {
-+	.probe		= rt_i2c_probe,
-+	.remove		= rt_i2c_remove,
-+	.driver		= {
-+		.owner	= THIS_MODULE,
-+		.name	= "i2c-mt7621",
-+		.of_match_table = i2c_rt_dt_ids,
-+	},
-+};
-+
-+static int __init i2c_rt_init (void)
-+{
-+	return platform_driver_register(&rt_i2c_driver);
-+}
-+
-+static void __exit i2c_rt_exit (void)
-+{
-+	platform_driver_unregister(&rt_i2c_driver);
-+}
-+module_init (i2c_rt_init);
-+module_exit (i2c_rt_exit);
-+
-+MODULE_AUTHOR("Steven Liu <steven_liu@mediatek.com>");
-+MODULE_DESCRIPTION("MT7621 I2c host driver");
-+MODULE_LICENSE("GPL");
-+MODULE_ALIAS("platform:MT7621-I2C");