Freescale On-Chip EHCI Host Controller problem

[sountharya1z]

Hi I am working in imx51 processor. In my project we are using 7 port USB(USB2517.) After enabling in Kconfig when I boot up the kernel it hangs after ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver It is not detecting the Freescale On-Chip EHCI Host Controller. Is there anything am I missing. I googled in net but no clue of what is wrong. Thanks for your valuable information Regards, Sountharya R

[tamasfekete]

Hello All!

I have a similar problem to this.

The first and the last usb related message I have:

ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver

missing: init EHCI-MXC or something like this

It seems I also can have voltage problem.

I am using kernel 3.2 and dtb file. I supposes I enabled everything.

Is there someone else who uses dtb too?

Maybe someone has idea where and how I should define ehci node in dtb file?

Thanks,

Tamas

[sountharya1z]

Thanks for your response make shi.. Ya now the USB is working fine.. It is due to the power and clock thats going to USB. Thank you all.

[makeshi]

First need check your USB power,is Host VBUS  active?Is the USB phy power is good? Then please add some  debug message to check  the system why and where hang?Is there access the register cause system hang?

[sountharya1z]

Ya. The system hangs when I enabled the "support for Host1 port on freescale Controller" in Kconfig

OD said:

You mean the hub will hang the system when you plug it to the root hub port?

[OD]

You mean the hub will hang the system when you plug it to the root hub port?