[PATCH] pci: layerscape: Fixup PCIe EP mode DT nodes for LX2160A rev2
Zhiqiang Hou
Zhiqiang.Hou at nxp.com
Sun Sep 13 17:12:50 CEST 2020
From: Hou Zhiqiang <Zhiqiang.Hou at nxp.com>
LX2160A rev2 uses different PCIe controller, so EP mode DT
nodes also need to be fixed up.
Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou at nxp.com>
---
drivers/pci/pcie_layerscape_fixup_common.c | 26 ++++++++++++++++++++++
1 file changed, 26 insertions(+)
diff --git a/drivers/pci/pcie_layerscape_fixup_common.c b/drivers/pci/pcie_layerscape_fixup_common.c
index fef0a75f11..0a42997696 100644
--- a/drivers/pci/pcie_layerscape_fixup_common.c
+++ b/drivers/pci/pcie_layerscape_fixup_common.c
@@ -41,6 +41,8 @@ int lx2_board_fix_fdt(void *fdt)
{ "config_axi_slave", "config" }
};
int off = -1, i;
+ const fdt32_t *prop;
+ u32 ob_wins, ib_wins;
off = fdt_node_offset_by_compatible(fdt, -1, "fsl,lx2160a-pcie");
while (off != -FDT_ERR_NOTFOUND) {
@@ -86,6 +88,30 @@ int lx2_board_fix_fdt(void *fdt)
off = fdt_node_offset_by_compatible(fdt, off,
"fsl,lx2160a-pcie");
}
+
+ /* Fixup PCIe EP nodes */
+ off = -1;
+ off = fdt_node_offset_by_compatible(fdt, off, "fsl,lx2160a-pcie-ep");
+ while (off != -FDT_ERR_NOTFOUND) {
+ fdt_setprop_string(fdt, off, "compatible",
+ "fsl,lx2160ar2-pcie-ep");
+ prop = fdt_getprop(fdt, off, "apio-wins", NULL);
+ if (!prop) {
+ printf("%s: Failed to fixup PCIe EP node @0x%x\n",
+ __func__, off);
+ continue;
+ }
+
+ ob_wins = fdt32_to_cpu(*prop);
+ ib_wins = (ob_wins == 256) ? 24 : 8;
+ fdt_setprop_u32(fdt, off, "num-ib-windows", ib_wins);
+ fdt_setprop_u32(fdt, off, "num-ob-windows", ob_wins);
+ fdt_delprop(fdt, off, "apio-wins");
+
+ off = fdt_node_offset_by_compatible(fdt, off,
+ "fsl,lx2160a-pcie-ep");
+ }
+
return 0;
}
--
2.17.1
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