linux-rp: add two patches for Tosa to fix usb networking - close #1527

2 files changed, 219 insertions, 0 deletions

diff --git a/packages/linux/linux-rp-2.6.23/pxa2xx_udc_support_inverse_vbus.patch b/packages/linux/linux-rp-2.6.23/pxa2xx_udc_support_inverse_vbus.patch
new file mode 100644
index 0000000000..72211aace2
--- /dev/null
+++ b/packages/linux/linux-rp-2.6.23/pxa2xx_udc_support_inverse_vbus.patch
@@ -0,0 +1,120 @@
+From dbaryshkov@gmail.com Fri Dec  7 00:05:32 2007
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+Date: Fri, 7 Dec 2007 02:05:32 +0300
+To: linux-arm-kernel@lists.arm.linux.org.uk
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+From: Dmitry Baryshkov <dbaryshkov@gmail.com>
+Subject: [PATCH 1/2] pxa2xx_udc_support_inverse_vbus.patch
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+
+Some pxa-based boards (like e.g. tosa) have the VBUS-detection gpio pin
+inverted. I.e. it's low when VBUS is connected and high when
+disconnected. Allow specifiing whether gpio_vbus value is inverted.
+
+Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com>
+
+Index: linux-test/drivers/usb/gadget/pxa2xx_udc.c
+===================================================================
+--- linux-test.orig/drivers/usb/gadget/pxa2xx_udc.c	2007-12-06 12:41:25.784337009 +0300
++++ linux-test/drivers/usb/gadget/pxa2xx_udc.c	2007-12-06 13:39:33.504345084 +0300
+@@ -125,8 +125,12 @@ static int is_vbus_present(void)
+ {
+ 	struct pxa2xx_udc_mach_info		*mach = the_controller->mach;
+ 
+-	if (mach->gpio_vbus)
+-		return gpio_get_value(mach->gpio_vbus);
++	if (mach->gpio_vbus) {
++		int value = gpio_get_value(mach->gpio_vbus);
++		return mach->gpio_vbus_inverted ?
++			!value :
++			value;
++	}
+ 	if (mach->udc_is_connected)
+ 		return mach->udc_is_connected();
+ 	return 1;
+@@ -1396,6 +1400,9 @@ static irqreturn_t udc_vbus_irq(int irq,
+ 	struct pxa2xx_udc	*dev = _dev;
+ 	int			vbus = gpio_get_value(dev->mach->gpio_vbus);
+ 
++	if (dev->mach->gpio_vbus_inverted)
++		vbus = !vbus;
++
+ 	pxa2xx_udc_vbus_session(&dev->gadget, vbus);
+ 	return IRQ_HANDLED;
+ }
+Index: linux-test/include/asm-arm/mach/udc_pxa2xx.h
+===================================================================
+--- linux-test.orig/include/asm-arm/mach/udc_pxa2xx.h	2007-12-06 12:38:49.872349393 +0300
++++ linux-test/include/asm-arm/mach/udc_pxa2xx.h	2007-12-06 12:41:03.594903549 +0300
+@@ -22,5 +22,6 @@ struct pxa2xx_udc_mach_info {
+ 	 */
+ 	u16	gpio_vbus;			/* high == vbus present */
+ 	u16	gpio_pullup;			/* high == pullup activated */
++	unsigned char gpio_vbus_inverted:1;
+ };
+ 
+
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+
diff --git a/packages/linux/linux-rp-2.6.23/tosa_udc_use_gpio_vbus.patch b/packages/linux/linux-rp-2.6.23/tosa_udc_use_gpio_vbus.patch
new file mode 100644
index 0000000000..12ef2e4f39
--- /dev/null
+++ b/packages/linux/linux-rp-2.6.23/tosa_udc_use_gpio_vbus.patch
@@ -0,0 +1,99 @@
+From dbaryshkov@gmail.com Fri Dec  7 00:07:07 2007
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+Date: Fri, 7 Dec 2007 02:07:07 +0300
+To: linux-arm-kernel@lists.arm.linux.org.uk
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+From: Dmitry Baryshkov <dbaryshkov@gmail.com>
+Subject: [PATCH 2/2] tosa_udc_use_gpio_vbus.patch
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+Use gpio_vbus instead of udc_is_connected for udc on tosa.
+
+Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com>
+
+Index: linux-test/arch/arm/mach-pxa/tosa.c
+===================================================================
+--- linux-test.orig/arch/arm/mach-pxa/tosa.c	2007-12-06 12:43:04.301350179 +0300
++++ linux-test/arch/arm/mach-pxa/tosa.c	2007-12-06 12:47:50.881381650 +0300
+@@ -165,14 +165,10 @@ static void tosa_udc_command(int cmd)
+ 	}
+ }
+ 
+-static int tosa_udc_is_connected(void)
+-{
+-	return ((GPLR(TOSA_GPIO_USB_IN) & GPIO_bit(TOSA_GPIO_USB_IN)) == 0);
+-}
+-
+ static struct pxa2xx_udc_mach_info udc_info __initdata = {
+ 	.udc_command		= tosa_udc_command,
+-	.udc_is_connected	= tosa_udc_is_connected,
++	.gpio_vbus		= TOSA_GPIO_USB_IN,
++	.gpio_vbus_inverted	= 1,
+ };
+ 
+ /*
+
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