@@ -90,24 +90,30 @@ gpio-poweroff {
timeout-ms = <5000>;
};
- /* The first 16MB region on the expansion bus */
+
flash@50000000 {
- compatible = "intel,ixp4xx-flash", "cfi-flash";
- bank-width = <2>;
- /*
- * 8 MB of Flash in 0x20000 byte blocks
- * mapped in at 0x50000000
- */
- reg = <0x50000000 0x800000>;
-
- partitions {
- compatible = "redboot-fis";
- /* Eraseblock at 0x7e0000 */
- fis-index-block = <0x3f>;
- };
};
soc {
+ bus@50000000 {
+ /* The first 16MB region at CS0 on the expansion bus */
+ flash@0 {
+ compatible = "intel,ixp4xx-flash", "cfi-flash";
+ bank-width = <2>;
+ /*
+ * 8 MB of Flash in 0x20000 byte blocks
+ * mapped in at CS0.
+ */
+ reg = <0x00000000 0x800000>;
+
+ partitions {
+ compatible = "redboot-fis";
+ /* Eraseblock at 0x7e0000 */
+ fis-index-block = <0x3f>;
+ };
+ };
+ };
+
ethernet@c8009000 {
status = "ok";
queue-rx = <&qmgr 3>;
@@ -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>;
+ 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>;
+ partitions {
+ compatible = "redboot-fis";
+ /* Eraseblock at 0x1fe0000 */
+ fis-index-block = <0xff>;
+ };
+ };
};
- };
- soc {
ethernet@c800a000 {
status = "ok";
queue-rx = <&qmgr 4>;
@@ -14,6 +14,19 @@ soc {
compatible = "simple-bus";
interrupt-parent = <&intcon>;
+ /*
+ * The IXP4xx expansion bus is a set of 16 or 32MB
+ * windows in the 256MB space from 0x50000000 to
+ * 0x5fffffff.
+ */
+ bus@50000000 {
+ compatible = "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0x00000000 0x50000000 0x10000000>;
+ dma-ranges = <0x00000000 0x50000000 0x10000000>;
+ };
+
qmgr: queue-manager@60000000 {
compatible = "intel,ixp4xx-ahb-queue-manager";
reg = <0x60000000 0x4000>;
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> --- .../boot/dts/intel-ixp42x-linksys-nslu2.dts | 34 +++++++++++-------- .../dts/intel-ixp43x-gateworks-gw2358.dts | 30 ++++++++-------- arch/arm/boot/dts/intel-ixp4xx.dtsi | 13 +++++++ 3 files changed, 49 insertions(+), 28 deletions(-)