sandbox: Build a device tree file for sandbox
Add support for building a device tree for sandbox's CONFIG_OF_HOSTFILE
option to make it easier to use device tree with sandbox.
This adjusts the Makefile to build a u-boot.dtb file which can be passed
to sandbox U-Boot with:
./u-boot -d u-boot.dtb
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/sandbox/config.mk b/arch/sandbox/config.mk
index 23b057e..668aa71 100644
--- a/arch/sandbox/config.mk
+++ b/arch/sandbox/config.mk
@@ -11,3 +11,5 @@
cmd_u-boot__ = $(CC) -o $@ -T u-boot.lds \
-Wl,--start-group $(u-boot-main) -Wl,--end-group \
$(PLATFORM_LIBS) -Wl,-Map -Wl,u-boot.map
+
+CONFIG_ARCH_DEVICE_TREE := sandbox
diff --git a/arch/sandbox/dts/Makefile b/arch/sandbox/dts/Makefile
new file mode 100644
index 0000000..a4c980b
--- /dev/null
+++ b/arch/sandbox/dts/Makefile
@@ -0,0 +1,11 @@
+dtb-$(CONFIG_SANDBOX) += sandbox.dtb
+
+targets += $(dtb-y)
+
+DTC_FLAGS += -R 4 -p 0x1000
+
+PHONY += dtbs
+dtbs: $(addprefix $(obj)/, $(dtb-y))
+ @:
+
+clean-files := *.dtb
diff --git a/arch/sandbox/dts/sandbox.dts b/arch/sandbox/dts/sandbox.dts
new file mode 100644
index 0000000..96a4438
--- /dev/null
+++ b/arch/sandbox/dts/sandbox.dts
@@ -0,0 +1,20 @@
+/dts-v1/;
+
+/ {
+ triangle {
+ compatible = "demo-shape";
+ colour = "cyan";
+ sides = <3>;
+ character = <83>;
+ };
+ square {
+ compatible = "demo-shape";
+ colour = "blue";
+ sides = <4>;
+ };
+ hexagon {
+ compatible = "demo-simple";
+ colour = "white";
+ sides = <6>;
+ };
+};