P-SeriesのトピックRe: P1020 USB DR as device support on Linux

P1020 USB DR as device support on Linux

YanjunLuo — Tue, 24 Nov 2015 01:24:02 GMT

Hi,

Does anybody use P1020'S USB DR as device? How should I use it? I enabled the "USB ULPI PHY interface support", and " Freescale Highspeed USB DR Peripheral Controller", but there is no response at all.

Regards,

Yanjun Luo.

Re: P1020 USB DR as device support on Linux

Pavel — Wed, 25 Nov 2015 03:55:27 GMT

Freescale SDK 1.8 supports the P1020 USB using as USB gadget. See attached files.

It is screenshots for P1020RDB kernel configuration menu.

Have a great day,
Pavel

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Re: P1020 USB DR as device support on Linux

YanjunLuo — Wed, 25 Nov 2015 07:28:31 GMT

Hi Pavel,

Thanks, I can't see the attachment. For some WiFi support, I tried the kernel 4.2.5. And I manual add the "fsl-usb2-udc" in platform_device_id, I can see the init, but my host always report "unable to enumerate USB device on port 1", and P1020's USB DR's interrupt works, and the status looks ok but it doesn't work. I added some printk and get the below result. the device is attached, the speed is high speed. I don't know what's wrong, why it can't enumerate. Did you try it before?

irq_src [0x00000040], udc->usb_state: [0x00000008], usbmode: [0xa], usbsts: [0xc0]

portsc1: 0x98000a05

irq_src [0x00000040], udc->usb_state: [0x00000001], usbmode: [0xa], usbsts: [0xc0]

irq_src [0x00000100], udc->usb_state: [0x00000001], usbmode: [0xa], usbsts: [0x180]

irq_src [0x00000040], udc->usb_state: [0x00000008], usbmode: [0xa], usbsts: [0xc0]

Regards,

Yanjun Luo.

Re: P1020 USB DR as device support on Linux

Pavel — Wed, 25 Nov 2015 11:12:23 GMT

Look at the Section 17.8.1 of the P1020 Reference Manual. Test USB setting using this section.

Have a great day,
Pavel

Re: P1020 USB DR as device support on Linux

YanjunLuo — Fri, 27 Nov 2015 06:28:56 GMT

Hi Pavel,

Thanks, I'm working on it.

Regards,

Yanjun Luo.