USBTTL access

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Hello,

I want to use the USB Host High Speed Port on the BeagleBoard C4 in u-boot.
I integrated the code from beagleboard u-boot for Rev XM.

This is what the code does in ehci_hcd_init:

  • putting the PHY in reset

  • Enable USBHOST_L3_ICLK (USBHOST_MICLK)

  • Enable USBHOST_48M_FCLK (USBHOST_FCLK1) and USBHOST_120M_FCLK (USBHOST_FCLK2)

  • Enable USBTTL_ICLK

  • Enable USBTTL_FCLK

  • The Code from wants to make a softreset of TLL here, but i have no access to the USBTLL subsystem at this point.

Can someone give same hints what i am missing?

Thanks,
Dipto