From: Nathan Lynch <ntl@pobox.com>
Date: Wed, 3 Jan 2007 18:56:28 +0000 (-0600)
Subject: [POWERPC] maple: improve CPC9x5 host bridge detection
X-Git-Tag: v2.6.21-rc2~42^2~3^2~102
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=f1f003330b4489f0e6502e1315bf9d764ed5f757;p=platform%2Fkernel%2Flinux-stable.git

[POWERPC] maple: improve CPC9x5 host bridge detection

Identify CPC9x5 PCI Express, AGP, and HT host bridges using
device_type and compatible properties, which is a more flexible method
than using the name property (which can differ between firmwares and
models).

Signed-off-by: Nathan Lynch <ntl@pobox.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
---

diff --git a/arch/powerpc/platforms/maple/pci.c b/arch/powerpc/platforms/maple/pci.c
index 3f6a69f..011f0f1 100644
--- a/arch/powerpc/platforms/maple/pci.c
+++ b/arch/powerpc/platforms/maple/pci.c
@@ -560,13 +560,16 @@ void __init maple_pci_init(void)
 		return;
 	}
 	for (np = NULL; (np = of_get_next_child(root, np)) != NULL;) {
-		if (np->name == NULL)
+		if (!np->type)
 			continue;
-		if (!strcmp(np->name, "pci") || !strcmp(np->name, "pcie")) {
-			if (add_bridge(np) == 0)
-				of_node_get(np);
-		}
-		if (strcmp(np->name, "ht") == 0) {
+		if (strcmp(np->type, "pci") && strcmp(np->type, "ht"))
+			continue;
+		if ((device_is_compatible(np, "u4-pcie") ||
+		     device_is_compatible(np, "u3-agp")) &&
+		    add_bridge(np) == 0)
+			of_node_get(np);
+
+		if (device_is_compatible(np, "u3-ht")) {
 			of_node_get(np);
 			ht = np;
 		}