Hi,
thanks for the quick reply.
Please review the patch http://patchwork.ozlabs.org/patch/237201/
I applied it, but it does not make any difference on my platform.
Regards,
M. Braun
Am 17.04.2013 12:53, schrieb Liu Shengzhou-B36685:
Hi Braun,
It seems the duplicated tdi_reset caused the PHY_CLK_VALID bit
unstable,
introduced by patch "EHCI: centralize controller initialization".
I submitted a patch to fix it.
Please review the patch http://patchwork.ozlabs.org/patch/237201/
Regards,
Shengzhou
-----Original Message-----
From: Michael Braun [mailto:michael-dev@xxxxxxxxxxxxx]
Sent: Wednesday, April 17, 2013 6:08 PM
To: Liu Shengzhou-B36685
Cc: Alan Stern; projekt-wlan@xxxxxxxxxxxxxxxxx; Greg Kroah-Hartman;
linux-usb@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx
Subject: Regression in 3735ba8db8e6ea22ad3ff524328926d8d780a884 with
Freescale P1020
Hi,
I'm running OpenWRT Kernel 3.8.3 (which already has
f66dea709cd9309b2ee9f715697818001fb518de and
5ed338778f917a035f0f0a52327fc4f72e36f7a1 applied) on a P1020WLAN
(QorlQ,
PPC) device.
Before updating the kernel from 3.3.0, USB host support was working
fine.
Now I get "fsl-ehci: USB PHY clock invalid" messages in dmesg and the
lsusb output is empty, so USB host support is not working. When I
apply
the following patch, USB host support starts working again, so I
guess
3735ba8db8e6ea22ad3ff524328926d8d780a884 is the cause.
Do you have an idea how to fix it more appropriately?
Thanks,
M. Braun
--- a/drivers/usb/host/ehci-fsl.c 2013-04-15 21:13:52.924403077
+0200
+++ b/drivers/usb/host/ehci-fsl.c 2013-04-15 21:13:57.572410838
+0200
@@ -273,7 +273,6 @@ static int ehci_fsl_setup_phy(struct usb
if (!spin_event_timeout(in_be32(non_ehci +
FSL_SOC_USB_CTRL) &
PHY_CLK_VALID,
FSL_USB_PHY_CLK_TIMEOUT,
0)) {
printk(KERN_WARNING "fsl-ehci: USB PHY clock
invalid\n");
- return -EINVAL;
}
}
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