[rb532] starting with 2.6.28 korina ethernet interface is eth2

[openwrt.git] / target / linux / ar7 / files / drivers / vlynq / vlynq.c

diff --git a/target/linux/ar7/files/drivers/vlynq/vlynq.c b/target/linux/ar7/files/drivers/vlynq/vlynq.c
index 0dd6c18..25f303b 100644 (file)
--- a/target/linux/ar7/files/drivers/vlynq/vlynq.c
+++ b/target/linux/ar7/files/drivers/vlynq/vlynq.c
@@ -1,5 +1,5 @@
 /*
 /*

- * Copyright (C) 2006, 2007 OpenWrt.org
+ * Copyright (C) 2006, 2007 Eugene Konev <ejka@openwrt.org>

  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by


@@ -26,6 +26,7 @@
 #include <linux/platform_device.h>
 #include <linux/interrupt.h>
 #include <linux/device.h>
 #include <linux/platform_device.h>
 #include <linux/interrupt.h>
 #include <linux/device.h>

+#include <linux/delay.h>

 #include <linux/io.h>
 
 #include <linux/vlynq.h>
 #include <linux/io.h>
 
 #include <linux/vlynq.h>


@@ -68,7 +69,7 @@ struct vlynq_regs {
        u32 autonego;
        u32 unused[6];
        u32 int_device[8];
        u32 autonego;
        u32 unused[6];
        u32 int_device[8];

-} __attribute__ ((packed));
+};

 
 #define vlynq_reg_read(reg) readl(&(reg))
 #define vlynq_reg_write(reg, val)  writel(val, &(reg))
 
 #define vlynq_reg_read(reg) readl(&(reg))
 #define vlynq_reg_write(reg, val)  writel(val, &(reg))


@@ -301,22 +302,18 @@ static int vlynq_device_match(struct device *dev,
 {
        struct vlynq_device *vdev = to_vlynq_device(dev);
        struct vlynq_driver *vdrv = to_vlynq_driver(drv);
 {
        struct vlynq_device *vdev = to_vlynq_device(dev);
        struct vlynq_driver *vdrv = to_vlynq_driver(drv);

-       struct plat_vlynq_ops *ops = dev->platform_data;

        struct vlynq_device_id *ids = vdrv->id_table;
        struct vlynq_device_id *ids = vdrv->id_table;

-       u32 id = 0;
-       int result;

 
        while (ids->id) {
 
        while (ids->id) {

-               vdev->divisor = ids->divisor;
-               result = __vlynq_enable_device(vdev);
-               if (result == 0) {
-                       id = vlynq_reg_read(vdev->remote->chip);
-                       ops->off(vdev);
-                       if (ids->id == id) {
-                               vlynq_set_drvdata(vdev, ids);
-                               return 1;
-                       }
+               if (ids->id == vdev->dev_id) {
+                       vdev->divisor = ids->divisor;
+                       vlynq_set_drvdata(vdev, ids);
+                       printk(KERN_INFO "Driver found for VLYNQ " \
+                               "device: %08x\n", vdev->dev_id);
+                       return 1;

                }
                }

+               printk(KERN_DEBUG "Not using the %08x VLYNQ device's driver" \
+                       " for VLYNQ device: %08x\n", ids->id, vdev->dev_id);

                ids++;
        }
        return 0;
                ids++;
        }
        return 0;


@@ -370,10 +367,21 @@ static int __vlynq_enable_device(struct vlynq_device *dev)
                return result;
 
        switch (dev->divisor) {
                return result;
 
        switch (dev->divisor) {

+       case vlynq_div_external:

        case vlynq_div_auto:
        case vlynq_div_auto:

-               /* Only try locally supplied clock, others cause problems */
+               vlynq_reg_write(dev->local->control, 0);

                vlynq_reg_write(dev->remote->control, 0);
                vlynq_reg_write(dev->remote->control, 0);

-               for (i = vlynq_ldiv1; i <= vlynq_ldiv8; i++) {
+               if (vlynq_linked(dev)) {
+                       dev->divisor = vlynq_div_external;
+                       printk(KERN_DEBUG "%s: using external clock\n",
+                               dev->dev.bus_id);
+                       return 0;
+               }
+
+               /* Only try locally supplied clock, others cause problems */
+               for (i = dev->dev_id ? vlynq_ldiv2 : vlynq_ldiv8; dev->dev_id ?
+                               i <= vlynq_ldiv8 : i >= vlynq_ldiv2;
+                               dev->dev_id ? i++ : i--) {

                        vlynq_reg_write(dev->local->control,
                                        VLYNQ_CTRL_CLOCK_INT |
                                        VLYNQ_CTRL_CLOCK_DIV(i - vlynq_ldiv1));
                        vlynq_reg_write(dev->local->control,
                                        VLYNQ_CTRL_CLOCK_INT |
                                        VLYNQ_CTRL_CLOCK_DIV(i - vlynq_ldiv1));


@@ -387,11 +395,11 @@ static int __vlynq_enable_device(struct vlynq_device *dev)
                }
        case vlynq_ldiv1: case vlynq_ldiv2: case vlynq_ldiv3: case vlynq_ldiv4:
        case vlynq_ldiv5: case vlynq_ldiv6: case vlynq_ldiv7: case vlynq_ldiv8:
                }
        case vlynq_ldiv1: case vlynq_ldiv2: case vlynq_ldiv3: case vlynq_ldiv4:
        case vlynq_ldiv5: case vlynq_ldiv6: case vlynq_ldiv7: case vlynq_ldiv8:

-               vlynq_reg_write(dev->remote->control, 0);

                vlynq_reg_write(dev->local->control,
                                VLYNQ_CTRL_CLOCK_INT |
                                VLYNQ_CTRL_CLOCK_DIV(dev->divisor -
                                                     vlynq_ldiv1));
                vlynq_reg_write(dev->local->control,
                                VLYNQ_CTRL_CLOCK_INT |
                                VLYNQ_CTRL_CLOCK_DIV(dev->divisor -
                                                     vlynq_ldiv1));

+               vlynq_reg_write(dev->remote->control, 0);

                if (vlynq_linked(dev)) {
                        printk(KERN_DEBUG
                               "%s: using local clock divisor %d\n",
                if (vlynq_linked(dev)) {
                        printk(KERN_DEBUG
                               "%s: using local clock divisor %d\n",


@@ -413,15 +421,6 @@ static int __vlynq_enable_device(struct vlynq_device *dev)
                        return 0;
                }
                break;
                        return 0;
                }
                break;

-       case vlynq_div_external:
-               vlynq_reg_write(dev->local->control, 0);
-               vlynq_reg_write(dev->remote->control, 0);
-               if (vlynq_linked(dev)) {
-                       printk(KERN_DEBUG "%s: using external clock\n",
-                              dev->dev.bus_id);
-                       return 0;
-               }
-               break;

        }
 
        ops->off(dev);
        }
 
        ops->off(dev);


@@ -602,6 +601,16 @@ static int vlynq_probe(struct platform_device *pdev)
               dev->dev.bus_id, (void *)dev->regs_start, dev->irq,
               (void *)dev->mem_start);
 
               dev->dev.bus_id, (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) {
+               dev->dev_id = vlynq_reg_read(dev->remote->chip);
+               ((struct plat_vlynq_ops *)(dev->dev.platform_data))->off(dev);
+       }
+       if (dev->dev_id)
+               printk(KERN_INFO "Found a VLYNQ device: %08x\n", dev->dev_id);
+

        return 0;
 
 fail_register:
        return 0;
 
 fail_register:


@@ -626,7 +635,7 @@ static int vlynq_remove(struct platform_device *pdev)
        return 0;
 }
 
        return 0;
 }
 

-static struct platform_driver vlynq_driver = {
+static struct platform_driver vlynq_platform_driver = {

        .driver.name = "vlynq",
        .probe = vlynq_probe,
        .remove = __devexit_p(vlynq_remove),
        .driver.name = "vlynq",
        .probe = vlynq_probe,
        .remove = __devexit_p(vlynq_remove),


@@ -648,7 +657,7 @@ static int __devinit vlynq_init(void)
        if (res)
                goto fail_bus;
 
        if (res)
                goto fail_bus;
 

-       res = platform_driver_register(&vlynq_driver);
+       res = platform_driver_register(&vlynq_platform_driver);

        if (res)
                goto fail_platform;
 
        if (res)
                goto fail_platform;
 


@@ -662,7 +671,7 @@ fail_bus:
 
 static void __devexit vlynq_exit(void)
 {
 
 static void __devexit vlynq_exit(void)
 {

-       platform_driver_unregister(&vlynq_driver);
+       platform_driver_unregister(&vlynq_platform_driver);

        bus_unregister(&vlynq_bus_type);
 }
 
        bus_unregister(&vlynq_bus_type);
 }