From: David S. Miller <davem@sunset.davemloft.net>
Date: Mon, 14 May 2007 05:01:18 +0000 (-0700)
Subject: [SPARC64]: Be more resiliant with PCI I/O space regs.
X-Git-Tag: v2.6.22-rc2~111^2~10
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=49d23cfcec5d36a91e118d28148d353bf8f0bc03;p=linux-2.6

[SPARC64]: Be more resiliant with PCI I/O space regs.

If we miss on the ranges, just toss the translation up to the parent
instead of failing.

Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/arch/sparc64/kernel/of_device.c b/arch/sparc64/kernel/of_device.c
index 7455f5d055..16cc46a718 100644
--- a/arch/sparc64/kernel/of_device.c
+++ b/arch/sparc64/kernel/of_device.c
@@ -537,6 +537,13 @@ static int __init build_one_resource(struct device_node *parent,
 			return 0;
 	}
 
+	/* When we miss an I/O space match on PCI, just pass it up
+	 * to the next PCI bridge and/or controller.
+	 */
+	if (!strcmp(bus->name, "pci") &&
+	    (addr[0] & 0x03000000) == 0x01000000)
+		return 0;
+
 	return 1;
 }