[PATCH] powerpc/pasemi: Seach for PCI root bus by compatible property
flat view
STALE3009d
From: Darren Stevens <hidden>
Date: 2018-07-25 22:00:59
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Linus Torvalds
Pasemi arch code finds the root of the PCI-e bus by searching the device-tree for a node called 'pxp'. But the root bus has a compatible property of 'pasemi,rootbus' so search for that instead. Signed-off-by: Darren Stevens <redacted> --- This works on the Amigaone X1000, I don't know if this method of finding the pci bus was there bcause of earlier firmwares.
diff --git a/arch/powerpc/platforms/pasemi/pci.c b/arch/powerpc/platforms/pasemi/pci.c
index c7c8607..be62380 100644
--- a/arch/powerpc/platforms/pasemi/pci.c
+++ b/arch/powerpc/platforms/pasemi/pci.c@@ -216,6 +216,7 @@ static int __init pas_add_bridge(struct device_node *dev) void __init pas_pci_init(void) { struct device_node *np, *root; + int res; root = of_find_node_by_path("/"); if (!root) {
@@ -226,11 +227,11 @@ void __init pas_pci_init(void) pci_set_flags(PCI_SCAN_ALL_PCIE_DEVS); - for (np = NULL; (np = of_get_next_child(root, np)) != NULL;) - if (np->name && !strcmp(np->name, "pxp") && !pas_add_bridge(np)) - of_node_get(np); - - of_node_put(root); + np = of_find_compatible_node(root, NULL, "pasemi,rootbus"); + if (np) { + res = pas_add_bridge(np); + of_node_put(np); + } } void __iomem *pasemi_pci_getcfgaddr(struct pci_dev *dev, int offset)