powerpc/powernv: Supports PHB3

The patch intends to initialize PHB3 during system boot stage. The
flag "PNV_PHB_MODEL_PHB3" is introduced to differentiate IODA2
compatible PHB3 from other types of PHBs.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

1 files changed, 5 insertions, 3 deletions

diff --git a/arch/powerpc/platforms/powernv/pci.h b/arch/powerpc/platforms/powernv/pci.h
index 42ddfba79651..f6314d65c4d9 100644
--- a/arch/powerpc/platforms/powernv/pci.h
+++ b/arch/powerpc/platforms/powernv/pci.h
@@ -4,9 +4,9 @@
 struct pci_dn;
 
 enum pnv_phb_type {
-        PNV_PHB_P5IOC2,
-        PNV_PHB_IODA1,
-        PNV_PHB_IODA2,
+        PNV_PHB_P5IOC2  = 0,
+        PNV_PHB_IODA1   = 1,
+        PNV_PHB_IODA2   = 2,
 };
 
 /* Precise PHB model for error management */
@@ -14,6 +14,7 @@ enum pnv_phb_model {
         PNV_PHB_MODEL_UNKNOWN,
         PNV_PHB_MODEL_P5IOC2,
         PNV_PHB_MODEL_P7IOC,
+        PNV_PHB_MODEL_PHB3,
 };
 
 #define PNV_PCI_DIAG_BUF_SIZE   4096
@@ -148,6 +149,7 @@ extern void pnv_pci_setup_iommu_table(struct iommu_table *tbl,
                                       u64 dma_offset);
 extern void pnv_pci_init_p5ioc2_hub(struct device_node *np);
 extern void pnv_pci_init_ioda_hub(struct device_node *np);
+extern void pnv_pci_init_ioda2_phb(struct device_node *np);
 
 
 #endif /* __POWERNV_PCI_H */