On 11/04/2011 05:24 PM, Fabio Estevam wrote: > On Fri, Nov 4, 2011 at 2:06 PM, Hugo Holgersson > <hu...@student.chalmers.se> wrote: >> Thanks for the input! >> >> Putting the mux code to generic.c, as it was done for the UART's pins, did >> not change anything... >> >> I write MXC_EHCI_MODE_SERIAL to&ehci->portsc. Exactly the same behavior. >> Same log. >> >> But the question (1) remains; which is the register (the address) of where >> mxc_set_usbcontrol() >> is supposed to write to? I understand Linux use >> http://lxr.linux.no/#linux+v3.1/arch/arm/mach-imx/ehci-imx25.c >> uses the IMX_USB_BASE + 0x600 address... But, to me this is outside the >> usb_ehci-struct, so I >> cannot figure out what register that is located at that address. >> >> Guessing, what about the following possible candidates inside the >> usb_echi-struct? >> usb_ehci->usbgenctrl >> usb_ehci->hwgeneral >> usb_ehci->control >> usb_ehci->isiphyctrl >> >> I need to find some docs on the controller's registers to understand that. > > You need to check MX25RM (Reference Manual) available at > http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=i.MX257&nodeId=018rH3ZrDR6B45&fpsp=1&tab=Documentation_Tab > > Regards, > > Fabio Estevam >
#define USBCTRL_OTGBASE_OFFSET 0x600 should maybe be called just USB_CTRL_OFFSET. According to the reference manual, it is a "USBOH"-register. Concerning both of the two, independent cores (OTG and "Host") of the chip. (Page 1747) So, it is indeed outside the usb_ehci struct! Sorry! Best regards, Hugo Holgersson _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
