Dear Albert ARIBAUD,
In message 4CC01C6B.9090904@free.fr you wrote:
Wolfgang/other testers, can you do the following three tests?
Will do asap, but first I want to share Heiko's latest findings:
With this patch all problems go away, too:
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c index f44fc4e..64b8012 100644 --- a/drivers/usb/host/ehci-hcd.c +++ b/drivers/usb/host/ehci-hcd.c @@ -205,12 +205,12 @@ static int handshake(uint32_t *ptr, uint32_t mask, uint32_t done, int usec) uint32_t result; do { result = ehci_readl(ptr); + udelay(1); if (result == ~(uint32_t)0) return -1; result &= mask; if (result == done) return 0; - udelay(1); usec--; } while (usec > 0); return -1; diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h index d3aa55b..945ab64 100644 --- a/drivers/usb/host/ehci.h +++ b/drivers/usb/host/ehci.h @@ -175,7 +175,7 @@ struct qTD { uint32_t qt_buffer_hi[5]; /* Appendix B */ /* pad struct for 32 byte alignment */ uint32_t unused[3]; -} __attribute__ ((aligned (32))); +};
/* Queue Head (QH). */ struct QH {
I have not the slightest idea ho to interpret this, though.
Best regards,
Wolfgang Denk