X-Git-Url: http://git.rohieb.name/openwrt.git/blobdiff_plain/fb9db09832f7c47995675da262762c047a001e3a..e2329f34d097ced237bb69e8431fea6cbeebd4fa:/target/linux/ar7/patches-2.6.32/160-vlynq_try_remote_first.patch

diff --git a/target/linux/ar7/patches-2.6.32/160-vlynq_try_remote_first.patch b/target/linux/ar7/patches-2.6.32/160-vlynq_try_remote_first.patch
deleted file mode 100644
index e75371bf9..000000000
--- a/target/linux/ar7/patches-2.6.32/160-vlynq_try_remote_first.patch
+++ /dev/null
@@ -1,304 +0,0 @@
---- a/drivers/vlynq/vlynq.c
-+++ b/drivers/vlynq/vlynq.c
-@@ -103,6 +103,12 @@ static void vlynq_dump_mem(u32 *base, in
- }
- #endif
- 
-+u32 __vlynq_rev_reg(struct vlynq_regs *regs)
-+{
-+	return readl(&regs->revision);
-+}
-+EXPORT_SYMBOL(__vlynq_rev_reg);
-+
- /* Check the VLYNQ link status with a given device */
- static int vlynq_linked(struct vlynq_device *dev)
- {
-@@ -117,20 +123,40 @@ static int vlynq_linked(struct vlynq_dev
- 	return 0;
- }
- 
-+static volatile int vlynq_delay_value_new = 0;
-+
-+static void vlynq_delay_wait(u32 count)
-+{
-+	/* Code adopted from original vlynq driver */
-+	int i = 0;
-+	volatile int *ptr = &vlynq_delay_value_new;
-+	*ptr = 0;
-+
-+	/* We are assuming that the each cycle takes about
-+	 * 23 assembly instructions. */
-+	for(i = 0; i < (count + 23)/23; i++)
-+		*ptr = *ptr + 1;
-+}
-+
- static void vlynq_reset(struct vlynq_device *dev)
- {
-+	u32 rtm = readl(&dev->local->revision);
-+
-+	rtm = rtm < 0x00010205 || readl(&dev->local->status) & 0x800 == 0 ?
-+			0 : 0x600000;
-+
- 	writel(readl(&dev->local->control) | VLYNQ_CTRL_RESET,
- 			&dev->local->control);
- 
- 	/* Wait for the devices to finish resetting */
--	msleep(5);
-+	vlynq_delay_wait(0xffffff);
- 
- 	/* Remove reset bit */
--	writel(readl(&dev->local->control) & ~VLYNQ_CTRL_RESET,
-+	writel(readl(&dev->local->control) & ~VLYNQ_CTRL_RESET | rtm,
- 			&dev->local->control);
- 
- 	/* Give some time for the devices to settle */
--	msleep(5);
-+	vlynq_delay_wait(0xffffff);
- }
- 
- static void vlynq_irq_unmask(unsigned int irq)
-@@ -379,6 +405,61 @@ void vlynq_unregister_driver(struct vlyn
- }
- EXPORT_SYMBOL(vlynq_unregister_driver);
- 
-+enum vlynq_clk_src {
-+	vlynq_clk_external,
-+	vlynq_clk_local,
-+	vlynq_clk_remote,
-+	vlynq_clk_invalid,
-+};
-+
-+static int __vlynq_set_clocks(struct vlynq_device *dev,
-+				enum vlynq_clk_src clk_dir,
-+				int lclk_div, int rclk_div)
-+{
-+	u32 reg;
-+
-+	if (clk_dir == vlynq_clk_invalid) {
-+		printk(KERN_ERR "%s: attempt to set invalid clocking\n",
-+				dev_name(&dev->dev));
-+		return -EINVAL;
-+	}
-+
-+	reg = readl(&dev->local->control);
-+	if (readl(&dev->local->revision) < 0x00010205) {
-+		if (clk_dir & vlynq_clk_local)
-+			reg |= VLYNQ_CTRL_CLOCK_INT;
-+		else
-+			reg &= ~VLYNQ_CTRL_CLOCK_INT;
-+	}
-+	reg &= ~VLYNQ_CTRL_CLOCK_MASK;
-+	reg |= VLYNQ_CTRL_CLOCK_DIV(lclk_div);
-+	writel(reg, &dev->local->control);
-+
-+	if (!vlynq_linked(dev))
-+		return -ENODEV;
-+
-+	printk(KERN_INFO "%s: local VLYNQ protocol rev. is 0x%08x\n",
-+			dev_name(&dev->dev), readl(&dev->local->revision));
-+	printk(KERN_INFO "%s: remote VLYNQ protocol rev. is 0x%08x\n",
-+			dev_name(&dev->dev), readl(&dev->remote->revision));
-+
-+	reg = readl(&dev->remote->control);
-+	if (readl(&dev->remote->revision) < 0x00010205) {
-+		if (clk_dir & vlynq_clk_remote)
-+			reg |= VLYNQ_CTRL_CLOCK_INT;
-+		else
-+			reg &= ~VLYNQ_CTRL_CLOCK_INT;
-+	}
-+	reg &= ~VLYNQ_CTRL_CLOCK_MASK;
-+	reg |= VLYNQ_CTRL_CLOCK_DIV(rclk_div);
-+	writel(reg, &dev->remote->control);
-+
-+	if (!vlynq_linked(dev))
-+		return -ENODEV;
-+
-+	return 0;
-+}
-+
- /*
-  * A VLYNQ remote device can clock the VLYNQ bus master
-  * using a dedicated clock line. In that case, both the
-@@ -392,29 +473,17 @@ static int __vlynq_try_remote(struct vly
- 	int i;
- 
- 	vlynq_reset(dev);
--	for (i = dev->dev_id ? vlynq_rdiv2 : vlynq_rdiv8; dev->dev_id ?
--			i <= vlynq_rdiv8 : i >= vlynq_rdiv2;
--		dev->dev_id ? i++ : i--) {
-+	for (i = dev->dev_id ? 0 : 7; dev->dev_id ? i <= 7 : i >= 0;
-+			dev->dev_id ? i++ : i--) {
- 
- 		if (!vlynq_linked(dev))
- 			break;
- 
--		writel((readl(&dev->remote->control) &
--				~VLYNQ_CTRL_CLOCK_MASK) |
--				VLYNQ_CTRL_CLOCK_INT |
--				VLYNQ_CTRL_CLOCK_DIV(i - vlynq_rdiv1),
--				&dev->remote->control);
--		writel((readl(&dev->local->control)
--				& ~(VLYNQ_CTRL_CLOCK_INT |
--				VLYNQ_CTRL_CLOCK_MASK)) |
--				VLYNQ_CTRL_CLOCK_DIV(i - vlynq_rdiv1),
--				&dev->local->control);
--
--		if (vlynq_linked(dev)) {
--			printk(KERN_DEBUG
--				"%s: using remote clock divisor %d\n",
--				dev_name(&dev->dev), i - vlynq_rdiv1 + 1);
--			dev->divisor = i;
-+		if (!__vlynq_set_clocks(dev, vlynq_clk_remote, i, i)) {
-+			printk(KERN_INFO
-+					"%s: using remote clock divisor %d\n",
-+					dev_name(&dev->dev), i + 1);
-+			dev->divisor = i + vlynq_rdiv1;
- 			return 0;
- 		} else {
- 			vlynq_reset(dev);
-@@ -437,21 +506,14 @@ static int __vlynq_try_local(struct vlyn
- 
- 	vlynq_reset(dev);
- 
--	for (i = dev->dev_id ? vlynq_ldiv2 : vlynq_ldiv8; dev->dev_id ?
--			i <= vlynq_ldiv8 : i >= vlynq_ldiv2;
--		dev->dev_id ? i++ : i--) {
--
--		writel((readl(&dev->local->control) &
--				~VLYNQ_CTRL_CLOCK_MASK) |
--				VLYNQ_CTRL_CLOCK_INT |
--				VLYNQ_CTRL_CLOCK_DIV(i - vlynq_ldiv1),
--				&dev->local->control);
--
--		if (vlynq_linked(dev)) {
--			printk(KERN_DEBUG
--				"%s: using local clock divisor %d\n",
--				dev_name(&dev->dev), i - vlynq_ldiv1 + 1);
--			dev->divisor = i;
-+	for (i = dev->dev_id ? 0 : 7; dev->dev_id ? i <= 7 : i >= 0;
-+			dev->dev_id ? i++ : i--) {
-+
-+		if (!__vlynq_set_clocks(dev, vlynq_clk_local, i, 0)) {
-+			printk(KERN_INFO
-+					"%s: using local clock divisor %d\n",
-+					dev_name(&dev->dev), i + 1);
-+			dev->divisor = i + vlynq_ldiv1;
- 			return 0;
- 		} else {
- 			vlynq_reset(dev);
-@@ -473,18 +535,10 @@ static int __vlynq_try_external(struct v
- 	if (!vlynq_linked(dev))
- 		return -ENODEV;
- 
--	writel((readl(&dev->remote->control) &
--			~VLYNQ_CTRL_CLOCK_INT),
--			&dev->remote->control);
--
--	writel((readl(&dev->local->control) &
--			~VLYNQ_CTRL_CLOCK_INT),
--			&dev->local->control);
--
--	if (vlynq_linked(dev)) {
--		printk(KERN_DEBUG "%s: using external clock\n",
--			dev_name(&dev->dev));
--			dev->divisor = vlynq_div_external;
-+	if (!__vlynq_set_clocks(dev, vlynq_clk_external, 0, 0)) {
-+		printk(KERN_INFO "%s: using external clock\n",
-+				dev_name(&dev->dev));
-+				dev->divisor = vlynq_div_external;
- 		return 0;
- 	}
- 
-@@ -507,18 +561,9 @@ static int __vlynq_enable_device(struct
- 		 * generation negotiated by hardware.
- 		 * Check which device is generating clocks and perform setup
- 		 * accordingly */
--		if (vlynq_linked(dev) && readl(&dev->remote->control) &
--		   VLYNQ_CTRL_CLOCK_INT) {
--			if (!__vlynq_try_remote(dev) ||
--				!__vlynq_try_local(dev)  ||
--				!__vlynq_try_external(dev))
--				return 0;
--		} else {
--			if (!__vlynq_try_external(dev) ||
--				!__vlynq_try_local(dev)    ||
--				!__vlynq_try_remote(dev))
--				return 0;
--		}
-+		if (!__vlynq_try_remote(dev) || !__vlynq_try_local(dev) ||
-+						!__vlynq_try_external(dev))
-+			return 0;
- 		break;
- 	case vlynq_ldiv1:
- 	case vlynq_ldiv2:
-@@ -528,15 +573,12 @@ static int __vlynq_enable_device(struct
- 	case vlynq_ldiv6:
- 	case vlynq_ldiv7:
- 	case vlynq_ldiv8:
--		writel(VLYNQ_CTRL_CLOCK_INT |
--			VLYNQ_CTRL_CLOCK_DIV(dev->divisor -
--			vlynq_ldiv1), &dev->local->control);
--		writel(0, &dev->remote->control);
--		if (vlynq_linked(dev)) {
--			printk(KERN_DEBUG
--				"%s: using local clock divisor %d\n",
--				dev_name(&dev->dev),
--				dev->divisor - vlynq_ldiv1 + 1);
-+		if (!__vlynq_set_clocks(dev, vlynq_clk_local, dev->divisor -
-+				vlynq_ldiv1, 0)) {
-+			printk(KERN_INFO
-+					"%s: using local clock divisor %d\n",
-+					dev_name(&dev->dev),
-+					dev->divisor - vlynq_ldiv1 + 1);
- 			return 0;
- 		}
- 		break;
-@@ -548,15 +590,12 @@ static int __vlynq_enable_device(struct
- 	case vlynq_rdiv6:
- 	case vlynq_rdiv7:
- 	case vlynq_rdiv8:
--		writel(0, &dev->local->control);
--		writel(VLYNQ_CTRL_CLOCK_INT |
--			VLYNQ_CTRL_CLOCK_DIV(dev->divisor -
--			vlynq_rdiv1), &dev->remote->control);
--		if (vlynq_linked(dev)) {
--			printk(KERN_DEBUG
--				"%s: using remote clock divisor %d\n",
--				dev_name(&dev->dev),
--				dev->divisor - vlynq_rdiv1 + 1);
-+		if (!__vlynq_set_clocks(dev, vlynq_clk_remote, 0,
-+				dev->divisor - vlynq_rdiv1)) {
-+			printk(KERN_INFO
-+					"%s: using remote clock divisor %d\n",
-+					dev_name(&dev->dev),
-+					dev->divisor - vlynq_rdiv1 + 1);
- 			return 0;
- 		}
- 		break;
-@@ -732,13 +771,12 @@ static int vlynq_probe(struct platform_d
- 	platform_set_drvdata(pdev, dev);
- 
- 	printk(KERN_INFO "%s: regs 0x%p, irq %d, mem 0x%p\n",
--	       dev_name(&dev->dev), (void *)dev->regs_start, dev->irq,
--	       (void *)dev->mem_start);
-+			dev_name(&dev->dev), (void *)dev->regs_start,
-+			dev->irq, (void *)dev->mem_start);
- 
- 	dev->dev_id = 0;
- 	dev->divisor = vlynq_div_auto;
--	result = __vlynq_enable_device(dev);
--	if (result == 0) {
-+	if (!__vlynq_enable_device(dev)) {
- 		dev->dev_id = readl(&dev->remote->chip);
- 		((struct plat_vlynq_ops *)(dev->dev.platform_data))->off(dev);
- 	}
---- a/include/linux/vlynq.h
-+++ b/include/linux/vlynq.h
-@@ -98,6 +98,7 @@ static inline struct vlynq_device *to_vl
- 
- extern struct bus_type vlynq_bus_type;
- 
-+extern u32 __vlynq_rev_reg(struct vlynq_regs *regs);
- extern int __vlynq_register_driver(struct vlynq_driver *driver,
- 				   struct module *owner);
-