[POWERPC] 4xx: Fix PCI mem in sequoia DTS

This patch is fixes the sequoia.dts device tree file to use the values defined
in the 440Epx data sheet from AMCC.

That fixes an issue where some devices, including graphics cards, would not
initialize properly because the PCI resource space was not big enough.

Signed-off-by: Christian Ehrhardt <ehrhardt@linux.vnet.ibm.com>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>

1 files changed, 7 insertions, 2 deletions

diff --git a/arch/powerpc/boot/dts/sequoia.dts b/arch/powerpc/boot/dts/sequoia.dts
index a1ae4d6ec99..72d67564bdf 100644
--- a/arch/powerpc/boot/dts/sequoia.dts
+++ b/arch/powerpc/boot/dts/sequoia.dts
@@ -342,9 +342,14 @@
                         /* Outbound ranges, one memory and one IO,
                          * later cannot be changed. Chip supports a second
                          * IO range but we don't use it for now
+                         * From the 440EPx user manual:
+                         * PCI 1 Memory     1 8000 0000     1 BFFF FFFF     1GB
+                         * I/O              1 E800 0000     1 E800 FFFF     64KB
+                         * I/O              1 E880 0000     1 EBFF FFFF     56MB
                          */
-                        ranges = <02000000 0 80000000 1 80000000 0 10000000
-                                01000000 0 00000000 1 e8000000 0 00100000>;
+                        ranges = <02000000 0 80000000 1 80000000 0 40000000
+                                01000000 0 00000000 1 e8000000 0 00010000
+                                01000000 0 00000000 1 e8800000 0 03800000>;
 
                         /* Inbound 2GB range starting at 0 */
                         dma-ranges = <42000000 0 0 0 0 0 80000000>;