CDNS_PCIE_LM_PTM_CTRL
val = cdns_pcie_readl(pcie, CDNS_PCIE_LM_PTM_CTRL);
cdns_pcie_writel(pcie, CDNS_PCIE_LM_PTM_CTRL, val & ~CDNS_PCIE_LM_TPM_CTRL_PTMRSEN);
val = cdns_pcie_readl(pcie, CDNS_PCIE_LM_PTM_CTRL);
cdns_pcie_writel(pcie, CDNS_PCIE_LM_PTM_CTRL, val | CDNS_PCIE_LM_TPM_CTRL_PTMRSEN);