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refresh and refine vlynq patch, patch from sn9 

SVN-Revision: 24178
lede-17.01
Florian Fainelli 2010-11-28 18:03:42 +00:00
parent af2349b4bc
commit a2aa5a227e
1 changed files with 36 additions and 34 deletions
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70
target/linux/ar7/patches-2.6.32/160-vlynq_try_remote_first.patch
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@ -1,7 +1,7 @@
Index: linux-2.6.32.26/drivers/vlynq/vlynq.c Index: linux-2.6.32.26/drivers/vlynq/vlynq.c
=================================================================== ===================================================================
--- linux-2.6.32.26.orig/drivers/vlynq/vlynq.c 2010-11-24 13:01:20.459985351 -0800 --- linux-2.6.32.26.orig/drivers/vlynq/vlynq.c 2010-11-22 10:48:20.000000000 -0800
+++ linux-2.6.32.26/drivers/vlynq/vlynq.c 2010-11-24 13:01:43.537494084 -0800 +++ linux-2.6.32.26/drivers/vlynq/vlynq.c 2010-11-28 02:56:51.972405343 -0800
@@ -103,6 +103,12 @@ @@ -103,6 +103,12 @@
} }
#endif #endif
@ -15,7 +15,7 @@ Index: linux-2.6.32.26/drivers/vlynq/vlynq.c
/* Check the VLYNQ link status with a given device */ /* Check the VLYNQ link status with a given device */
static int vlynq_linked(struct vlynq_device *dev) static int vlynq_linked(struct vlynq_device *dev)
{ {
@@ -117,20 +123,43 @@ @@ -117,20 +123,40 @@
return 0; return 0;
} }
@ -38,9 +38,6 @@ Index: linux-2.6.32.26/drivers/vlynq/vlynq.c
{ {
+ u32 rtm = readl(&dev->local->revision); + u32 rtm = readl(&dev->local->revision);
+ +
+ if (rtm < 0x00010200)
+ return;
+
+ rtm = rtm < 0x00010205 || readl(&dev->local->status) & 0x800 == 0 ? + rtm = rtm < 0x00010205 || readl(&dev->local->status) & 0x800 == 0 ?
+ 0 : 0x600000; + 0 : 0x600000;
+ +
@ -62,7 +59,7 @@ Index: linux-2.6.32.26/drivers/vlynq/vlynq.c
} }
static void vlynq_irq_unmask(unsigned int irq) static void vlynq_irq_unmask(unsigned int irq)
@@ -379,6 +408,62 @@ @@ -379,6 +405,61 @@
} }
EXPORT_SYMBOL(vlynq_unregister_driver); EXPORT_SYMBOL(vlynq_unregister_driver);
@ -85,9 +82,6 @@ Index: linux-2.6.32.26/drivers/vlynq/vlynq.c
+ return -EINVAL; + return -EINVAL;
+ } + }
+ +
+ printk(KERN_INFO "%s: local VLYNQ protocol rev. is 0x%08x\n",
+ dev_name(&dev->dev), readl(&dev->local->revision));
+
+ reg = readl(&dev->local->control); + reg = readl(&dev->local->control);
+ if (readl(&dev->local->revision) < 0x00010205) { + if (readl(&dev->local->revision) < 0x00010205) {
+ if (clk_dir & vlynq_clk_local) + if (clk_dir & vlynq_clk_local)
@ -102,6 +96,8 @@ Index: linux-2.6.32.26/drivers/vlynq/vlynq.c
+ if (!vlynq_linked(dev)) + if (!vlynq_linked(dev))
+ return -ENODEV; + 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", + printk(KERN_INFO "%s: remote VLYNQ protocol rev. is 0x%08x\n",
+ dev_name(&dev->dev), readl(&dev->remote->revision)); + dev_name(&dev->dev), readl(&dev->remote->revision));
+ +
@ -125,15 +121,16 @@ Index: linux-2.6.32.26/drivers/vlynq/vlynq.c
/* /*
* A VLYNQ remote device can clock the VLYNQ bus master * A VLYNQ remote device can clock the VLYNQ bus master
* using a dedicated clock line. In that case, both the * using a dedicated clock line. In that case, both the
@@ -392,29 +477,15 @@ @@ -392,29 +473,17 @@
int i; int i;
vlynq_reset(dev); vlynq_reset(dev);
- for (i = dev->dev_id ? vlynq_rdiv2 : vlynq_rdiv8; dev->dev_id ? - for (i = dev->dev_id ? vlynq_rdiv2 : vlynq_rdiv8; dev->dev_id ?
- i <= vlynq_rdiv8 : i >= vlynq_rdiv2; - i <= vlynq_rdiv8 : i >= vlynq_rdiv2;
- dev->dev_id ? i++ : i--) { - dev->dev_id ? i++ : i--) {
- + for (i = dev->dev_id ? 0 : 7; dev->dev_id ? i <= 7 : i >= 0;
+ for (i = 0; i <= 7; i++) { + dev->dev_id ? i++ : i--) {
if (!vlynq_linked(dev)) if (!vlynq_linked(dev))
break; break;
@ -149,18 +146,19 @@ Index: linux-2.6.32.26/drivers/vlynq/vlynq.c
- &dev->local->control); - &dev->local->control);
- -
- if (vlynq_linked(dev)) { - if (vlynq_linked(dev)) {
+ if (!__vlynq_set_clocks(dev, vlynq_clk_remote, i, i)) { - printk(KERN_DEBUG
printk(KERN_DEBUG
- "%s: using remote clock divisor %d\n", - "%s: using remote clock divisor %d\n",
- dev_name(&dev->dev), i - vlynq_rdiv1 + 1); - dev_name(&dev->dev), i - vlynq_rdiv1 + 1);
- dev->divisor = i; - dev->divisor = i;
+ if (!__vlynq_set_clocks(dev, vlynq_clk_remote, i, i)) {
+ printk(KERN_INFO
+ "%s: using remote clock divisor %d\n", + "%s: using remote clock divisor %d\n",
+ dev_name(&dev->dev), i + 1); + dev_name(&dev->dev), i + 1);
+ dev->divisor = i + vlynq_rdiv1; + dev->divisor = i + vlynq_rdiv1;
return 0; return 0;
} else { } else {
vlynq_reset(dev); vlynq_reset(dev);
@@ -437,21 +508,12 @@ @@ -437,21 +506,14 @@
vlynq_reset(dev); vlynq_reset(dev);
@ -175,12 +173,15 @@ Index: linux-2.6.32.26/drivers/vlynq/vlynq.c
- &dev->local->control); - &dev->local->control);
- -
- if (vlynq_linked(dev)) { - if (vlynq_linked(dev)) {
+ for (i = 0; i <= 7; i++) { - printk(KERN_DEBUG
+ if (!__vlynq_set_clocks(dev, vlynq_clk_local, i, 0)) {
printk(KERN_DEBUG
- "%s: using local clock divisor %d\n", - "%s: using local clock divisor %d\n",
- dev_name(&dev->dev), i - vlynq_ldiv1 + 1); - dev_name(&dev->dev), i - vlynq_ldiv1 + 1);
- dev->divisor = i; - 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", + "%s: using local clock divisor %d\n",
+ dev_name(&dev->dev), i + 1); + dev_name(&dev->dev), i + 1);
+ dev->divisor = i + vlynq_ldiv1; + dev->divisor = i + vlynq_ldiv1;
@ -200,10 +201,11 @@ Index: linux-2.6.32.26/drivers/vlynq/vlynq.c
- &dev->local->control); - &dev->local->control);
- -
- if (vlynq_linked(dev)) { - if (vlynq_linked(dev)) {
+ if (!__vlynq_set_clocks(dev, vlynq_clk_external, 0, 0)) { - printk(KERN_DEBUG "%s: using external clock\n",
printk(KERN_DEBUG "%s: using external clock\n",
- dev_name(&dev->dev)); - dev_name(&dev->dev));
- dev->divisor = vlynq_div_external; - 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_name(&dev->dev));
+ dev->divisor = vlynq_div_external; + dev->divisor = vlynq_div_external;
return 0; return 0;
@ -240,12 +242,13 @@ Index: linux-2.6.32.26/drivers/vlynq/vlynq.c
- vlynq_ldiv1), &dev->local->control); - vlynq_ldiv1), &dev->local->control);
- writel(0, &dev->remote->control); - writel(0, &dev->remote->control);
- if (vlynq_linked(dev)) { - if (vlynq_linked(dev)) {
+ if (!__vlynq_set_clocks(dev, vlynq_clk_local, dev->divisor - - printk(KERN_DEBUG
+ vlynq_ldiv1, 0)) {
printk(KERN_DEBUG
- "%s: using local clock divisor %d\n", - "%s: using local clock divisor %d\n",
- dev_name(&dev->dev), - dev_name(&dev->dev),
- dev->divisor - vlynq_ldiv1 + 1); - 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", + "%s: using local clock divisor %d\n",
+ dev_name(&dev->dev), + dev_name(&dev->dev),
+ dev->divisor - vlynq_ldiv1 + 1); + dev->divisor - vlynq_ldiv1 + 1);
@ -261,19 +264,20 @@ Index: linux-2.6.32.26/drivers/vlynq/vlynq.c
- VLYNQ_CTRL_CLOCK_DIV(dev->divisor - - VLYNQ_CTRL_CLOCK_DIV(dev->divisor -
- vlynq_rdiv1), &dev->remote->control); - vlynq_rdiv1), &dev->remote->control);
- if (vlynq_linked(dev)) { - if (vlynq_linked(dev)) {
+ if (!__vlynq_set_clocks(dev, vlynq_clk_remote, 0, - printk(KERN_DEBUG
+ dev->divisor - vlynq_rdiv1)) {
printk(KERN_DEBUG
- "%s: using remote clock divisor %d\n", - "%s: using remote clock divisor %d\n",
- dev_name(&dev->dev), - dev_name(&dev->dev),
- dev->divisor - vlynq_rdiv1 + 1); - 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", + "%s: using remote clock divisor %d\n",
+ dev_name(&dev->dev), + dev_name(&dev->dev),
+ dev->divisor - vlynq_rdiv1 + 1); + dev->divisor - vlynq_rdiv1 + 1);
return 0; return 0;
} }
break; break;
@@ -732,13 +771,13 @@ @@ -732,13 +771,12 @@
platform_set_drvdata(pdev, dev); platform_set_drvdata(pdev, dev);
printk(KERN_INFO "%s: regs 0x%p, irq %d, mem 0x%p\n", printk(KERN_INFO "%s: regs 0x%p, irq %d, mem 0x%p\n",
@ -282,20 +286,18 @@ Index: linux-2.6.32.26/drivers/vlynq/vlynq.c
+ dev_name(&dev->dev), (void *)dev->regs_start, + dev_name(&dev->dev), (void *)dev->regs_start,
+ dev->irq, (void *)dev->mem_start); + dev->irq, (void *)dev->mem_start);
- dev->dev_id = 0; dev->dev_id = 0;
dev->divisor = vlynq_div_auto; dev->divisor = vlynq_div_auto;
- result = __vlynq_enable_device(dev); - result = __vlynq_enable_device(dev);
- if (result == 0) { - if (result == 0) {
+ if (__vlynq_enable_device(dev)) + if (!__vlynq_enable_device(dev)) {
+ dev->dev_id = 0;
+ else {
dev->dev_id = readl(&dev->remote->chip); dev->dev_id = readl(&dev->remote->chip);
((struct plat_vlynq_ops *)(dev->dev.platform_data))->off(dev); ((struct plat_vlynq_ops *)(dev->dev.platform_data))->off(dev);
} }
Index: linux-2.6.32.26/include/linux/vlynq.h Index: linux-2.6.32.26/include/linux/vlynq.h
=================================================================== ===================================================================
--- linux-2.6.32.26.orig/include/linux/vlynq.h 2010-11-24 13:07:33.297487888 -0800 --- linux-2.6.32.26.orig/include/linux/vlynq.h 2010-11-22 10:48:20.000000000 -0800
+++ linux-2.6.32.26/include/linux/vlynq.h 2010-11-24 13:08:44.107488596 -0800 +++ linux-2.6.32.26/include/linux/vlynq.h 2010-11-27 12:08:39.312438011 -0800
@@ -98,6 +98,7 @@ @@ -98,6 +98,7 @@
extern struct bus_type vlynq_bus_type; extern struct bus_type vlynq_bus_type;