ARM: dts: ixp4xx: Create a proper expansion bus
The IXP4xx expansion bus is 24 bits (256 MB) that is memory
mapped between 0x50000000-0x5fffffff usin a set of chip
selects. The size of the windows is 16 or 32MB defined by
the boot loader system configuration at runtime.
Create a rudimentary simple-bus and move the flash memories
to the expansion bus, inside the SoC.
Cc: Zoltan HERPAI <wigyori@uid0.hu>
Cc: Raylynn Knight <rayknight@me.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
diff --git a/arch/arm/boot/dts/intel-ixp43x-gateworks-gw2358.dts b/arch/arm/boot/dts/intel-ixp43x-gateworks-gw2358.dts
index 130a245..581ff18 100644
--- a/arch/arm/boot/dts/intel-ixp43x-gateworks-gw2358.dts
+++ b/arch/arm/boot/dts/intel-ixp43x-gateworks-gw2358.dts
@@ -76,23 +76,25 @@ pld1: pld@57 {
};
};
- flash@50000000 {
- compatible = "intel,ixp4xx-flash", "cfi-flash";
- bank-width = <2>;
- /*
- * 32 MB of Flash in 0x20000 byte blocks
- * mapped in at 0x50000000
- */
- reg = <0x50000000 0x2000000>;
-
- partitions {
- compatible = "redboot-fis";
- /* Eraseblock at 0x1fe0000 */
- fis-index-block = <0xff>;
- };
- };
-
soc {
+ bus@50000000 {
+ flash@0 {
+ compatible = "intel,ixp4xx-flash", "cfi-flash";
+ bank-width = <2>;
+ /*
+ * 32 MB of Flash in 0x20000 byte blocks
+ * mapped in at CS0.
+ */
+ reg = <0x00000000 0x2000000>;
+
+ partitions {
+ compatible = "redboot-fis";
+ /* Eraseblock at 0x1fe0000 */
+ fis-index-block = <0xff>;
+ };
+ };
+ };
+
pci@c0000000 {
status = "ok";