SET_NAK_OUT_PACKETS
writel(BIT(SET_NAK_OUT_PACKETS), &ep->regs->ep_rsp);
BIT(SET_NAK_OUT_PACKETS) |
writel(BIT(SET_NAK_OUT_PACKETS), &ep->regs->ep_rsp);
((ep->dev->chiprev == CHIPREV_1) << SET_NAK_OUT_PACKETS) |
writel(BIT(SET_NAK_OUT_PACKETS), &ep->regs->ep_rsp);