On Wed, 30 Apr 2008 14:12:49 +0530, "Syed Mohammed, Khasim" <khasim@xxxxxx>
wrote:
> Hi all,
>
> We have USB ECHI port 1 integrated with SMSC PHY (USB 3326) on Beagle
> Board. I have connected a high speed Mass Storage (USB harddisk) to the
> port, the enumeration happens fine and I am also able to do a data
> transfer, but after some time, it fails with below message:
>
> ehci-omap ehci-omap.0: port 1 reset error -110
> hub 2-0:1.0: hub_port_status failed (err = -32)
> # ehci-omap ehci-omap.0: port 1 reset error -110
> hub 2-0:1.0: hub_port_status failed (err = -32)
> ehci-omap ehci-omap.0: port 1 reset error -110
> hub 2-0:1.0: hub_port_status failed (err = -32)
> ehci-omap ehci-omap.0: port 1 reset error -110
> hub 2-0:1.0: hub_port_status failed (err = -32)
> ehci-omap ehci-omap.0: port 1 reset error -110
> hub 2-0:1.0: hub_port_status failed (err = -32)
> hub 2-0:1.0: Cannot enable port 1. Maybe the USB cable is bad?
> ehci-omap ehci-omap.0: port 1 reset error -110
> hub 2-0:1.0: hub_port_status failed (err = -32)
> ehci-omap ehci-omap.0: port 1 reset error -110
> hub 2-0:1.0: hub_port_status failed (err = -32)
> ehci-omap ehci-omap.0: port 1 reset error -110
> hub 2-0:1.0: hub_port_status failed (err = -32)
> ehci-omap ehci-omap.0: port 1 reset error -110
> hub 2-0:1.0: hub_port_status failed (err = -32)
> ehci-omap ehci-omap.0: port 1 reset error -110
> hub 2-0:1.0: hub_port_status failed (err = -32)
> hub 2-0:1.0: Cannot enable port 1. Maybe the USB cable is bad?
> ehci-omap ehci-omap.0: port 1 reset error -110
> hub 2-0:1.0: hub_port_status failed (err = -32)
> ehci-omap ehci-omap.0: port 1 reset error -110
> hub 2-0:1.0: hub_port_status failed (err = -32)
> ehci-omap ehci-omap.0: port 1 reset error -110
> hub 2-0:1.0: hub_port_status failed (err = -32)
> ehci-omap ehci-omap.0: port 1 reset error -110
> hub 2-0:1.0: hub_port_status failed (err = -32)
> ehci-omap ehci-omap.0: port 1 reset error -110
> hub 2-0:1.0: hub_port_status failed (err = -32)
> hub 2-0:1.0: Cannot enable port 1. Maybe the USB cable is bad?
> ehci-omap ehci-omap.0: port 1 reset error -110
> hub 2-0:1.0: hub_port_status failed (err = -32)
> ehci-omap ehci-omap.0: port 1 reset error -110
> hub 2-0:1.0: hub_port_status failed (err = -32)
> ehci-omap ehci-omap.0: port 1 reset error -110
> hub 2-0:1.0: hub_port_status failed (err = -32)
> ehci-omap ehci-omap.0: port 1 reset error -110
> hub 2-0:1.0: hub_port_status failed (err = -32)
> ehci-omap ehci-omap.0: port 1 reset error -110
> hub 2-0:1.0: hub_port_status failed (err = -32)
> hub 2-0:1.0: Cannot enable port 1. Maybe the USB cable is bad?
> usb 2-1: USB disconnect, address 2
> sd 0:0:0:0: [sda] Result: hostbyte=0x01 driverbyte=0x00
> end_request: I/O error, dev sda, sector 226436535
> Buffer I/O error on device sda1, logical block 47837202
> lost page write due to I/O error on sda1
> Buffer I/O error on device sda1, logical block 69593106
>
> <so on>
>
> I have also tried connecting a self powered HUB, this fails as well.
Other
> USB devices like Ethernet, Mouse, Keyboard, etc fail after similarly.
is this mass storage really High Speed? If mouse and keyboard fail
similarly
it could be that you're using a full speed storage device.
>From Beagle Manual:
"NOTE: Beagle USB Host only supports HS USB (480Mbp/S). Low Speed
and Full Speed devices are not supported unless they are connected
through a USB Hub prior to connection to the Beagle. The OTG port
does support LS and FS devices."
also try applying this patch to wait a bit more for reset bit to be
cleared:
diff --git a/drivers/usb/host/ehci-hub.c b/drivers/usb/host/ehci-hub.c
index 4e065e5..3b2a228 100644
--- a/drivers/usb/host/ehci-hub.c
+++ b/drivers/usb/host/ehci-hub.c
@@ -734,7 +734,7 @@ static int ehci_hub_control (
* this bit; seems too long to spin routinely...
*/
retval = handshake(ehci, status_reg,
- PORT_RESET, 0, 750);
+ PORT_RESET, 0, 1250);
if (retval != 0) {
ehci_err (ehci, "port %d reset error %d\n",
wIndex + 1, retval);
--
Best Regards,
Felipe Balbi
http://felipebalbi.com
me@xxxxxxxxxxxxxxx
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