arm/dts: Add Aspeed ast2400 device tree

A common device tree for all forth gen/ast2400 systems and a board
specific dts for the Palmetto OpenPower developemnt machine which was
used for testing.

Signed-off-by: Joel Stanley <joel@jms.id.au>

1 files changed, 25 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/aspeed-bmc-opp-palmetto.dts b/arch/arm/boot/dts/aspeed-bmc-opp-palmetto.dts
new file mode 100644
index 000000000000..cc5fcf2940bf
--- /dev/null
+++ b/arch/arm/boot/dts/aspeed-bmc-opp-palmetto.dts
@@ -0,0 +1,25 @@
+/dts-v1/;
+
+#include "aspeed-g4.dtsi"
+
+/ {
+	model = "Palmetto BMC";
+	compatible = "tyan,palmetto-bmc", "aspeed,ast2400";
+
+	aliases {
+		serial4 = &uart5;
+	};
+
+	chosen {
+		stdout-path = &uart5;
+		bootargs = "console=ttyS4,38400 earlyprintk";
+	};
+
+	memory {
+		reg = <0x40000000 0x10000000>;
+	};
+};
+
+&uart5 {
+	status = "okay";
+};