DBGP_CLAIM
ctrl |= DBGP_CLAIM;
if ((ctrl & DBGP_CLAIM) != DBGP_CLAIM) {
writel(ctrl & ~DBGP_CLAIM, &ehci_debug->control);
ctrl &= ~(DBGP_CLAIM | DBGP_OUT);
ctrl &= ~(DBGP_CLAIM);