mips: luton: DT: Add pcb090

This prepares individual device trees for MSCC luton-based reference
boards - pcb090 and pcb091.

Note: Even though the devices trees are quite common, they will differ
significantly in coming patches.

Signed-off-by: Lars Povlsen <lars.povlsen@microchip.com>

diff --git a/arch/mips/dts/luton_pcb090.dts b/arch/mips/dts/luton_pcb090.dts
new file mode 100644 (file)
index 0000000..a3f8926
--- /dev/null
+++ b/arch/mips/dts/luton_pcb090.dts
@@ -0,0 +1,36 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (c) 2018 Microsemi Corporation
+ */
+
+/dts-v1/;
+#include "mscc,luton.dtsi"
+
+/ {
+       model = "Luton26 PCB090 Reference Board";
+       compatible = "mscc,luton-pcb090", "mscc,luton";
+
+       aliases {
+               serial0 = &uart0;
+               spi0 = &spi0;
+       };
+
+       chosen {
+               stdout-path = "serial0:115200n8";
+       };
+};
+
+&uart0 {
+       status = "okay";
+};
+
+&spi0 {
+       status = "okay";
+       spi-flash@0 {
+               compatible = "spi-flash";
+               spi-max-frequency = <18000000>; /* input clock */
+               reg = <0>; /* CS0 */
+               spi-cs-high;
+       };
+};
+