PARF_SYS_CTRL
val = readl_relaxed(pcie_ep->parf + PARF_SYS_CTRL);
writel_relaxed(val, pcie_ep->parf + PARF_SYS_CTRL);
val = readl(pcie->parf + PARF_SYS_CTRL);
writel(val, pcie->parf + PARF_SYS_CTRL);
pcie->parf + PARF_SYS_CTRL);
val = readl(pcie->parf + PARF_SYS_CTRL);
writel(val, pcie->parf + PARF_SYS_CTRL);
pcie->parf + PARF_SYS_CTRL);