backported ixp4xx ehci driver

[openwrt.git] / target / linux / ixp4xx / patches-2.6.23 / 016-dsmg600_auto_power_on.patch

diff --git a/target/linux/ixp4xx/patches-2.6.23/016-dsmg600_auto_power_on.patch b/target/linux/ixp4xx/patches-2.6.23/016-dsmg600_auto_power_on.patch
index 25709da..2a1f241 100644 (file)
--- a/target/linux/ixp4xx/patches-2.6.23/016-dsmg600_auto_power_on.patch
+++ b/target/linux/ixp4xx/patches-2.6.23/016-dsmg600_auto_power_on.patch
@@ -1,13 +1,40 @@
+Upgrade the power and reset button handling for the DSMG600:
+ * Remove the superfluous declaration of ctrl_alt_del().
+ * Convert GPIO and IRQ handling to use the <asm/gpio.h> api.
+ * Perform the reset on the release of the power button, so that
+   NAS devices which have been set to auto-power-on (by bridging
+   the power button) do not continuously power cycle.
+ * Remove all superflous constants from dsmg600.h
+
+Signed-off-by: Rod Whitby <rod@whitby.id.au>
+
 ---
- arch/arm/mach-ixp4xx/dsmg600-power.c |   13 +++++++++----
- 1 file changed, 9 insertions(+), 4 deletions(-)
+ arch/arm/mach-ixp4xx/dsmg600-power.c  |   24 ++++++++++++++----------
+ include/asm-arm/arch-ixp4xx/dsmg600.h |    7 +------
+ 2 files changed, 15 insertions(+), 16 deletions(-)
 
-Index: linux-2.6.22-rc5-armeb/arch/arm/mach-ixp4xx/dsmg600-power.c
+Index: linux-2.6.23.12-armeb/arch/arm/mach-ixp4xx/dsmg600-power.c
 ===================================================================
---- linux-2.6.22-rc5-armeb.orig/arch/arm/mach-ixp4xx/dsmg600-power.c
-+++ linux-2.6.22-rc5-armeb/arch/arm/mach-ixp4xx/dsmg600-power.c
-@@ -50,6 +50,13 @@
-       if (*IXP4XX_GPIO_GPINR & DSMG600_PB_BM) {
+--- linux-2.6.23.12-armeb.orig/arch/arm/mach-ixp4xx/dsmg600-power.c    2008-01-11 16:20:26.000000000 +1030
++++ linux-2.6.23.12-armeb/arch/arm/mach-ixp4xx/dsmg600-power.c 2008-01-11 16:20:30.000000000 +1030
+@@ -26,10 +26,9 @@
+ #include <linux/jiffies.h>
+ #include <linux/timer.h>
+ 
++#include <asm/gpio.h>
+ #include <asm/mach-types.h>
+ 
+-extern void ctrl_alt_del(void);
+-
+ /* This is used to make sure the power-button pusher is serious.  The button
+  * must be held until the value of this counter reaches zero.
+  */
+@@ -47,9 +46,16 @@
+        * state of the power button.
+        */
+ 
+-      if (*IXP4XX_GPIO_GPINR & DSMG600_PB_BM) {
++      if (gpio_get_value(DSMG600_PB_GPIO)) {
  
                /* IO Pin is 1 (button pushed) */
 +              if (power_button_countdown > 0) {
@@ -20,7 +47,7 @@ Index: linux-2.6.22-rc5-armeb/arch/arm/mach-ixp4xx/dsmg600-power.c
                if (power_button_countdown == 0) {
                        /* Signal init to do the ctrlaltdel action, this will bypass
                         * init if it hasn't started and do a kernel_restart.
-@@ -58,11 +65,9 @@
+@@ -58,11 +64,9 @@
  
                        /* Change the state of the power LED to "blink" */
                        gpio_line_set(DSMG600_LED_PWR_GPIO, IXP4XX_GPIO_LOW);
@@ -34,3 +61,51 @@ Index: linux-2.6.22-rc5-armeb/arch/arm/mach-ixp4xx/dsmg600-power.c
        }
  
        mod_timer(&dsmg600_power_timer, jiffies + msecs_to_jiffies(500));
+@@ -81,12 +85,12 @@
+       if (!(machine_is_dsmg600()))
+               return 0;
+ 
+-      if (request_irq(DSMG600_RB_IRQ, &dsmg600_reset_handler,
++      if (request_irq(gpio_to_irq(DSMG600_RB_GPIO), &dsmg600_reset_handler,
+               IRQF_DISABLED | IRQF_TRIGGER_LOW, "DSM-G600 reset button",
+               NULL) < 0) {
+ 
+               printk(KERN_DEBUG "Reset Button IRQ %d not available\n",
+-                      DSMG600_RB_IRQ);
++                      gpio_to_irq(DSMG600_RB_GPIO));
+ 
+               return -EIO;
+       }
+@@ -114,7 +118,7 @@
+ 
+       del_timer_sync(&dsmg600_power_timer);
+ 
+-      free_irq(DSMG600_RB_IRQ, NULL);
++      free_irq(gpio_to_irq(DSMG600_RB_GPIO), NULL);
+ }
+ 
+ module_init(dsmg600_power_init);
+Index: linux-2.6.23.12-armeb/include/asm-arm/arch-ixp4xx/dsmg600.h
+===================================================================
+--- linux-2.6.23.12-armeb.orig/include/asm-arm/arch-ixp4xx/dsmg600.h   2008-01-11 16:20:26.000000000 +1030
++++ linux-2.6.23.12-armeb/include/asm-arm/arch-ixp4xx/dsmg600.h        2008-01-11 16:20:30.000000000 +1030
+@@ -40,18 +40,13 @@
+ /* Buttons */
+ 
+ #define DSMG600_PB_GPIO               15      /* power button */
+-#define DSMG600_PB_BM         (1L << DSMG600_PB_GPIO)
+-
+ #define DSMG600_RB_GPIO               3       /* reset button */
+ 
+-#define DSMG600_RB_IRQ                IRQ_IXP4XX_GPIO3
++/* Power control */
+ 
+ #define DSMG600_PO_GPIO               2       /* power off */
+ 
+ /* LEDs */
+ 
+ #define DSMG600_LED_PWR_GPIO  0
+-#define DSMG600_LED_PWR_BM    (1L << DSMG600_LED_PWR_GPIO)
+-
+ #define DSMG600_LED_WLAN_GPIO 14
+-#define DSMG600_LED_WLAN_BM   (1L << DSMG600_LED_WLAN_GPIO)