pci/layerscape: Setup mmu-masters property for the PCIe

Setup mmu-masters property for the PCIe controllers. This would be
used by the Linux SMMU driver, while setting up stream ID table mappings
for the PCIe devices.

Signed-off-by: Varun Sethi <Varun.Sethi@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>

diff --git a/drivers/pci/pcie_layerscape.c b/drivers/pci/pcie_layerscape.c
index 95cfe8c..2f24a6a 100644 (file)
--- a/drivers/pci/pcie_layerscape.c
+++ b/drivers/pci/pcie_layerscape.c
@@ -689,6 +689,7 @@ void fdt_fixup_smmu_pcie(void *blob)
 {
        int count;
        u32 stream_ids[MAX_STREAM_IDS];
+       u32 ctlr_streamid = 0x300;
 
        #ifdef CONFIG_PCIE1
        /* PEX1 stream ID fixup */
@@ -696,6 +697,8 @@ void fdt_fixup_smmu_pcie(void *blob)
        alloc_stream_ids(FSL_PEX1_STREAM_ID_START, count, stream_ids,
                         MAX_STREAM_IDS);
        pcie_set_available_streamids(blob, "/pcie@3400000", stream_ids, count);
+       append_mmu_masters(blob, "/iommu@5000000", "/pcie@3400000",
+                          &ctlr_streamid, 1);
        #endif
 
        #ifdef CONFIG_PCIE2
@@ -704,6 +707,8 @@ void fdt_fixup_smmu_pcie(void *blob)
        alloc_stream_ids(FSL_PEX2_STREAM_ID_START, count, stream_ids,
                         MAX_STREAM_IDS);
        pcie_set_available_streamids(blob, "/pcie@3500000", stream_ids, count);
+       append_mmu_masters(blob, "/iommu@5000000", "/pcie@3500000",
+                          &ctlr_streamid, 1);
        #endif
 
        #ifdef CONFIG_PCIE3
@@ -712,6 +717,8 @@ void fdt_fixup_smmu_pcie(void *blob)
        alloc_stream_ids(FSL_PEX3_STREAM_ID_START, count, stream_ids,
                         MAX_STREAM_IDS);
        pcie_set_available_streamids(blob, "/pcie@3600000", stream_ids, count);
+       append_mmu_masters(blob, "/iommu@5000000", "/pcie@3600000",
+                          &ctlr_streamid, 1);
        #endif
 
        #ifdef CONFIG_PCIE4
@@ -720,6 +727,8 @@ void fdt_fixup_smmu_pcie(void *blob)
        alloc_stream_ids(FSL_PEX4_STREAM_ID_START, count, stream_ids,
                         MAX_STREAM_IDS);
        pcie_set_available_streamids(blob, "/pcie@3700000", stream_ids, count);
+       append_mmu_masters(blob, "/iommu@5000000", "/pcie@3700000",
+                          &ctlr_streamid, 1);
        #endif
 }
 #endif