x86: slimbootloader: Add a slimbootloader device tree

Add a new device tree which has very minimum nodes
- x86 reset
- x86 tsc_timer
- x86 pci
- Slim Bootloader serial

Signed-off-by: Aiden Park <aiden.park@intel.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>

diff --git a/arch/x86/dts/Makefile b/arch/x86/dts/Makefile
index fa717bc0966e76095d06a4ea6bae8ce0f826a9a8..d4bdf62be6dc79c5cb100a1e10e49bbc49a951a6 100644 (file)
--- a/arch/x86/dts/Makefile
+++ b/arch/x86/dts/Makefile
@@ -18,6 +18,7 @@ dtb-y += bayleybay.dtb \
        qemu-x86_i440fx.dtb \
        qemu-x86_q35.dtb \
        theadorable-x86-dfi-bt700.dtb \
+       slimbootloader.dtb \
        baytrail_som-db5800-som-6867.dtb
 
 targets += $(dtb-y)

diff --git a/arch/x86/dts/slimbootloader.dts b/arch/x86/dts/slimbootloader.dts
new file mode 100644 (file)
index 0000000..d04095c
--- /dev/null
+++ b/arch/x86/dts/slimbootloader.dts
@@ -0,0 +1,27 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2019 Intel Corporation <www.intel.com>
+ */
+
+/dts-v1/;
+
+/include/ "skeleton.dtsi"
+/include/ "reset.dtsi"
+/include/ "tsc_timer.dtsi"
+
+/ {
+       model = "slimbootloader x86 payload";
+       compatible = "slimbootloader,x86-payload";
+
+       chosen {
+               stdout-path = &serial;
+       };
+
+       serial: serial {
+               compatible = "intel,slimbootloader-uart";
+       };
+
+       pci {
+               compatible = "pci-x86";
+       };
+};