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authorDavid S. Miller <davem@davemloft.net>2008-09-03 02:04:41 -0700
committerDavid S. Miller <davem@davemloft.net>2008-09-03 02:05:19 -0700
commit5280267c1dddb8d413595b87dc406624bb497946 (patch)
tree541701a1c15d17b7b5535beebd8e4f258d31395c /arch/sparc64/kernel
parent9723f38eb53eac9a851210b629555a37afa3f15c (diff)
sparc: Fix handling of LANCE and ESP parent nodes in of_device.c
The device nodes that sit above 'esp' and 'le' on SBUS lack a 'ranges' property, but we should pass the translation up to the parent node so that the SBUS level ranges get applied. Based upon a bug report from Robert Reif. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc64/kernel')
-rw-r--r--arch/sparc64/kernel/of_device.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/arch/sparc64/kernel/of_device.c b/arch/sparc64/kernel/of_device.c
index e427086e3b5..c15bcdf75c0 100644
--- a/arch/sparc64/kernel/of_device.c
+++ b/arch/sparc64/kernel/of_device.c
@@ -438,8 +438,17 @@ static int __init use_1to1_mapping(struct device_node *pp)
/* If the parent is the dma node of an ISA bus, pass
* the translation up to the root.
+ *
+ * Some SBUS devices use intermediate nodes to express
+ * hierarchy within the device itself. These aren't
+ * real bus nodes, and don't have a 'ranges' property.
+ * But, we should still pass the translation work up
+ * to the SBUS itself.
*/
- if (!strcmp(pp->name, "dma"))
+ if (!strcmp(pp->name, "dma") ||
+ !strcmp(pp->name, "espdma") ||
+ !strcmp(pp->name, "ledma") ||
+ !strcmp(pp->name, "lebuffer"))
return 0;
/* Similarly for all PCI bridges, if we get this far