Messages in this thread | | | Date | Thu, 18 Aug 2016 11:08:40 -0500 | From | Bin Liu <> | Subject | Re: musb: am3358: having problem with high-speed on usb1 at peripheral |
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Hi,
On Fri, Aug 12, 2016 at 10:23:15AM +0800, ayaka wrote: > Hello all: > I recently add a support for customize am3358 board using the branch > processor-sdk-linux-03.00.00 from Ti git. But I meet a problem with musb > at the peripheral mode. > I have force usb1 in peripheral mode in dts as it only have USB_DP, > USB_DM and USBDRV connected. I start up a ether gadget using the configfs,
Do you mean USB1_DRVVBUS pin? If so, you have wrong hw design. For peripheral mode, you should float this pin, but connect USB1_VBUS pin instead.
Regards, -Bin.
> But I found it would always work on the USB 2.0 full speed mode, > even the testmode can't force it in high speed mode or it won't appear > at host side. If I want it work at high speed mode, what should I do? > I also meet the DMA problem, I have to apply the "ARM: dts: am33xx: > fix DMA support for the second USB interface", but does patches really > work? Although it make the error message disapear, but the mail list > said the just make the usb back to PIO mode. > > -- > 2.7.4 > > -- > To unsubscribe from this list: send the line "unsubscribe linux-usb" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html
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