usbtest test-14 failure: MUSBHDRC + Netchip2280

Hi 

  I am testing HS USB HOST controller of OMAP2430 (MUSBHDRC) with
Netchip2280 device using usbtest. When I run the test.sh control test on
the OMAP Host, the test 14 fails randomly after some iterations with
error no -32.

When I analyze the CATC traces, when it fails, the NetChip2280 device
STALLs the IN Token. Attached is the trace. It seems to be some timing
related problem with the Netchip device rather than the host because the
CATC trace does not show any misbehavior from Host side. 

Also when I add delays in either host or netchip driver, the problem
goes away.

 The netchip driver is stalling the endpoint in the following place. 
When I disable the STALL from netchip as follows, the problem vanishes,
but that may not be the solution.

Could any one identify if this is netchip or host side issue? 


--- a/drivers/usb/gadget/net2280.c 2007-03-23 16:40:44.000000000 +0530
+++ b/drivers/usb/gadget/net2280.c  2007-03-23 17:19:21.000000000 +0530
@@ -2204,12 +2206,16 @@ static void handle_ep_small (struct net2
                                        && req
                                        && req->req.actual ==
req->req.length)
                                        || !req) {
+printk("\n-->STALL\n");
+#if 0
                                ep->dev->protocol_stall = 1;
+
                                set_halt (ep);
                                ep->stopped = 1;
                                if (req)
                                        done (ep, req, -EOVERFLOW);
                                req = NULL;
+#endif
                        }
                }
        }



Regards,
Vikram Pandita

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