> Below are codes for accessing usb sysif_regs in driver:
>
> usb_sys_regs = (struct usb_sys_interface *)
> ((u32)dr_regs + USB_DR_SYS_OFFSET);
>
> these codes work in 32-bit, but in 64-bit, use u32 to type cast the
address
> of ioremap is not right, and accessing members of 'usb_sys_regs' will
cause
> call trace, so use unsigned long for both 32-bit and 64-bit.
Wouldn't a (char *) cast be even better?
David
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