USB_QMU_TQHIAR
regs[3].offset = in ? USB_QMU_TQHIAR(epnum) : USB_QMU_RQHIAR(epnum);
tqhiar = mtu3_readl(mbase, USB_QMU_TQHIAR(epnum));
mtu3_writel(mbase, USB_QMU_TQHIAR(epnum), tqhiar);
txhiar = mtu3_readl(mbase, USB_QMU_TQHIAR(epnum));