basic pxa support; likely broken

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@6232 3c298f89-4303-0410-b956-a3cf2f4a3e73

target/linux/pxa-2.6/patches/002-usb_gadget.patch

@@ -0,0 +1,58 @@
+diff -NurbwB linux-2.6.17/drivers/usb/gadget/pxa2xx_udc.c linux-2.6.17-patched/drivers/usb/gadget/pxa2xx_udc.c
+--- linux-2.6.17/drivers/usb/gadget/pxa2xx_udc.c	2006-06-17 18:49:35.000000000 -0700
++++ linux-2.6.17-patched/drivers/usb/gadget/pxa2xx_udc.c	2006-09-11 13:02:39.000000000 -0700
+@@ -87,8 +87,8 @@
+ static const char ep0name [] = "ep0";
+ 
+ 
+-// #define	USE_DMA
+-// #define	USE_OUT_DMA
++#define	USE_DMA
++#define	USE_OUT_DMA
+ // #define	DISABLE_TEST_MODE
+ 
+ #ifdef CONFIG_ARCH_IXP4XX
+@@ -1513,7 +1513,7 @@
+ #endif
+ 
+ 	/* try to clear these bits before we enable the udc */
+-	udc_ack_int_UDCCR(UDCCR_SUSIR|/*UDCCR_RSTIR|*/UDCCR_RESIR);
++	udc_ack_int_UDCCR(UDCCR_SUSIR|UDCCR_RSTIR|UDCCR_RESIR);
+ 
+ 	ep0_idle(dev);
+ 	dev->gadget.speed = USB_SPEED_UNKNOWN;
+@@ -2043,6 +2043,9 @@
+ 	struct pxa2xx_udc	*dev = _dev;
+ 	int			handled;
+ 
++
++	udc_set_mask_UDCCR( UDCCR_REM | UDCCR_SRM);
++
+ 	dev->stats.irqs++;
+ 	HEX_DISPLAY(dev->stats.irqs);
+ 	do {
+@@ -2137,6 +2139,8 @@
+ 		/* we could also ask for 1 msec SOF (SIR) interrupts */
+ 
+ 	} while (handled);
++
++	udc_clear_mask_UDCCR( UDCCR_SRM | UDCCR_REM);
+ 	return IRQ_HANDLED;
+ }
+ 
+@@ -2437,6 +2441,7 @@
+ 	int retval, out_dma = 1;
+ 	u32 chiprev;
+ 
++	local_irq_disable();
+ 	/* insist on Intel/ARM/XScale */
+ 	asm("mrc%? p15, 0, %0, c0, c0" : "=r" (chiprev));
+ 	if ((chiprev & CP15R0_VENDOR_MASK) != CP15R0_XSCALE_VALUE) {
+@@ -2553,6 +2558,7 @@
+ #endif
+ 	}
+ #endif
++	local_irq_enable();
+ 	create_proc_files();
+ 
+ 	return 0;