From 4b97a8244226646e7670167d83569738d809c85b Mon Sep 17 00:00:00 2001
From: Bharat Bhushan <Bharat.Bhushan@nxp.com>
Date: Thu, 31 Aug 2017 13:26:46 +0530
Subject: [PATCH] pci: layerscape: Fixup iommu-map for LS208xA
Commit 0aaa1a9 added support for LS208xA devices but fixing
iommu-map property is missing. This patch adds support for
fixing iommu-map.
Signed-off-by: Bharat Bhushan <Bharat.Bhushan@nxp.com>
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
[YS: revised commit message]
Reviewed-by: York Sun <york.sun@nxp.com>
---
drivers/pci/pcie_layerscape_fixup.c | 19 ++++++++++++++-----
1 file changed, 14 insertions(+), 5 deletions(-)
diff --git a/drivers/pci/pcie_layerscape_fixup.c b/drivers/pci/pcie_layerscape_fixup.c
index 9e6c2f5dfcf..3dae20103da 100644
--- a/drivers/pci/pcie_layerscape_fixup.c
+++ b/drivers/pci/pcie_layerscape_fixup.c
@@ -130,19 +130,28 @@ static void fdt_pcie_set_iommu_map_entry(void *blob, struct ls_pcie *pcie,
u32 iommu_map[4];
int nodeoffset;
int lenp;
+ uint svr;
+ char *compat = NULL;
/* find pci controller node */
nodeoffset = fdt_node_offset_by_compat_reg(blob, "fsl,ls-pcie",
pcie->dbi_res.start);
if (nodeoffset < 0) {
#ifdef CONFIG_FSL_PCIE_COMPAT /* Compatible with older version of dts node */
- nodeoffset = fdt_node_offset_by_compat_reg(blob,
- CONFIG_FSL_PCIE_COMPAT, pcie->dbi_res.start);
+ svr = (get_svr() >> SVR_VAR_PER_SHIFT) & 0xFFFFFE;
+ if (svr == SVR_LS2088A || svr == SVR_LS2084A ||
+ svr == SVR_LS2048A || svr == SVR_LS2044A ||
+ svr == SVR_LS2081A || svr == SVR_LS2041A)
+ compat = "fsl,ls2088a-pcie";
+ else
+ compat = CONFIG_FSL_PCIE_COMPAT;
+
+ if (compat)
+ nodeoffset = fdt_node_offset_by_compat_reg(blob,
+ compat, pcie->dbi_res.start);
+#endif
if (nodeoffset < 0)
return;
-#else
- return;
-#endif
}
/* get phandle to iommu controller */
--
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