powerpc/mpc85xx_ds: convert to unified PCI init

Similar to how the primary PCI bridge is identified by looking
for an isa subnode, we determine whether to apply uli exclusions
by looking for a uli subnode.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

diff --git a/arch/powerpc/platforms/85xx/mpc85xx_ds.c b/arch/powerpc/platforms/85xx/mpc85xx_ds.c
index d30f6c4..6d3265f 100644 (file)
--- a/arch/powerpc/platforms/85xx/mpc85xx_ds.c
+++ b/arch/powerpc/platforms/85xx/mpc85xx_ds.c
@@ -114,71 +114,53 @@ void __init mpc85xx_ds_pic_init(void)
 }
 
 #ifdef CONFIG_PCI
-static int primary_phb_addr;
 extern int uli_exclude_device(struct pci_controller *hose,
                                u_char bus, u_char devfn);
 
+static struct device_node *pci_with_uli;
+
 static int mpc85xx_exclude_device(struct pci_controller *hose,
                                   u_char bus, u_char devfn)
 {
-       struct device_node* node;
-       struct resource rsrc;
-
-       node = hose->dn;
-       of_address_to_resource(node, 0, &rsrc);
-
-       if ((rsrc.start & 0xfffff) == primary_phb_addr) {
+       if (hose->dn == pci_with_uli)
                return uli_exclude_device(hose, bus, devfn);
-       }
 
        return PCIBIOS_SUCCESSFUL;
 }
 #endif /* CONFIG_PCI */
 
-/*
- * Setup the architecture
- */
-static void __init mpc85xx_ds_setup_arch(void)
+static void __init mpc85xx_ds_pci_init(void)
 {
 #ifdef CONFIG_PCI
-       struct device_node *np;
-       struct pci_controller *hose;
-#endif
-       dma_addr_t max = 0xffffffff;
+       struct device_node *node;
 
-       if (ppc_md.progress)
-               ppc_md.progress("mpc85xx_ds_setup_arch()", 0);
+       fsl_pci_init();
 
-#ifdef CONFIG_PCI
-       for_each_node_by_type(np, "pci") {
-               if (of_device_is_compatible(np, "fsl,mpc8540-pci") ||
-                   of_device_is_compatible(np, "fsl,mpc8548-pcie") ||
-                   of_device_is_compatible(np, "fsl,p2020-pcie")) {
-                       struct resource rsrc;
-                       of_address_to_resource(np, 0, &rsrc);
-                       if ((rsrc.start & 0xfffff) == primary_phb_addr)
-                               fsl_add_bridge(np, 1);
-                       else
-                               fsl_add_bridge(np, 0);
-
-                       hose = pci_find_hose_for_OF_device(np);
-                       max = min(max, hose->dma_window_base_cur +
-                                       hose->dma_window_size);
+       /* See if we have a ULI under the primary */
+
+       node = of_find_node_by_name(NULL, "uli1575");
+       while ((pci_with_uli = of_get_parent(node))) {
+               of_node_put(node);
+               node = pci_with_uli;
+
+               if (pci_with_uli == fsl_pci_primary) {
+                       ppc_md.pci_exclude_device = mpc85xx_exclude_device;
+                       break;
                }
        }
-
-       ppc_md.pci_exclude_device = mpc85xx_exclude_device;
 #endif
+}
 
-       mpc85xx_smp_init();
+/*
+ * Setup the architecture
+ */
+static void __init mpc85xx_ds_setup_arch(void)
+{
+       if (ppc_md.progress)
+               ppc_md.progress("mpc85xx_ds_setup_arch()", 0);
 
-#ifdef CONFIG_SWIOTLB
-       if ((memblock_end_of_DRAM() - 1) > max) {
-               ppc_swiotlb_enable = 1;
-               set_pci_dma_ops(&swiotlb_dma_ops);
-               ppc_md.pci_dma_dev_setup = pci_dma_dev_setup_swiotlb;
-       }
-#endif
+       mpc85xx_ds_pci_init();
+       mpc85xx_smp_init();
 
        printk("MPC85xx DS board from Freescale Semiconductor\n");
 }
@@ -190,14 +172,7 @@ static int __init mpc8544_ds_probe(void)
 {
        unsigned long root = of_get_flat_dt_root();
 
-       if (of_flat_dt_is_compatible(root, "MPC8544DS")) {
-#ifdef CONFIG_PCI
-               primary_phb_addr = 0xb000;
-#endif
-               return 1;
-       }
-
-       return 0;
+       return !!of_flat_dt_is_compatible(root, "MPC8544DS");
 }
 
 machine_device_initcall(mpc8544_ds, mpc85xx_common_publish_devices);
@@ -215,14 +190,7 @@ static int __init mpc8572_ds_probe(void)
 {
        unsigned long root = of_get_flat_dt_root();
 
-       if (of_flat_dt_is_compatible(root, "fsl,MPC8572DS")) {
-#ifdef CONFIG_PCI
-               primary_phb_addr = 0x8000;
-#endif
-               return 1;
-       }
-
-       return 0;
+       return !!of_flat_dt_is_compatible(root, "fsl,MPC8572DS");
 }
 
 /*
@@ -232,14 +200,7 @@ static int __init p2020_ds_probe(void)
 {
        unsigned long root = of_get_flat_dt_root();
 
-       if (of_flat_dt_is_compatible(root, "fsl,P2020DS")) {
-#ifdef CONFIG_PCI
-               primary_phb_addr = 0x9000;
-#endif
-               return 1;
-       }
-
-       return 0;
+       return !!of_flat_dt_is_compatible(root, "fsl,P2020DS");
 }
 
 define_machine(mpc8544_ds) {