+ writel(upper_32_bits(pp->mem_bus_addr),
+ pcie->dbi + PCIE20_PLR_IATU_UTAR);
+
-+ /* 1K PCIE buffer setting */
-+ writel(0x3, pcie->dbi + PCIE20_AXI_MSTR_RESP_COMP_CTRL0);
++ /* 256B PCIE buffer setting */
++ writel(0x1, pcie->dbi + PCIE20_AXI_MSTR_RESP_COMP_CTRL0);
+ writel(0x1, pcie->dbi + PCIE20_AXI_MSTR_RESP_COMP_CTRL1);
+}
+