dw_pcie_writeb_dbi
dw_pcie_writeb_dbi(pci, cap + lane_eq_offset + i, presets[i]);
dw_pcie_writeb_dbi(pci, PCI_CAPABILITY_LIST, next_pos);
dw_pcie_writeb_dbi(pci, pre_pos + 1, next_pos);
dw_pcie_writeb_dbi(pci, offset + i, val);