If the sandbox device tree is provided to U-Boot (with the -d flag) then it
will use the device tree version in preference to the built-in device. The
only difference is the colour.

Signed-off-by: Simon Glass <s...@chromium.org>
---

Changes in v3:
- Change pre-reloc fdt property to 'u-boot,dm-pre-reloc'

Changes in v2: None

 arch/sandbox/dts/sandbox.dts | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/arch/sandbox/dts/sandbox.dts b/arch/sandbox/dts/sandbox.dts
index efffacb..fd2b44b 100644
--- a/arch/sandbox/dts/sandbox.dts
+++ b/arch/sandbox/dts/sandbox.dts
@@ -1,6 +1,16 @@
 /dts-v1/;
 
 / {
+       aliases {
+               console = "/serial";
+       };
+
+       uart0: serial {
+               compatible = "sandbox,serial";
+               u-boot,dm-pre-reloc;
+               text-colour = "cyan";
+       };
+
        triangle {
                compatible = "demo-shape";
                colour = "cyan";
-- 
2.0.0.526.g5318336

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