BGE_PCIE_TLDLPL_PORT
v = CSR_READ_4(sc, BGE_PCIE_TLDLPL_PORT);
CSR_WRITE_4(sc, BGE_PCIE_TLDLPL_PORT, v | (1 << 25));
v = CSR_READ_4(sc, BGE_PCIE_TLDLPL_PORT);
CSR_WRITE_4(sc, BGE_PCIE_TLDLPL_PORT, v | (1 << 25));