Merge tag 'for-linus' of https://github.com/openrisc/linux

Pull OpenRISC updates from Stafford Horne:
 "Just a few documentation updates from the community:

   - Device tree documentation conversion from txt to yaml

   - Documentation addition to help users getting started with initramfs
     on OpenRISC

* tag 'for-linus' of https://github.com/openrisc/linux:
  dt-bindings: interrupt-controller: Convert openrisc,ompic to DT schema
  dt-bindings: interrupt-controller: Convert opencores,or1k-pic to DT schema
  Documentation:openrisc: Add build instructions with initramfs

Author: torvalds

Documentation/arch/openrisc/openrisc_port.rst

@@ -40,6 +40,12 @@ Build the Linux kernel as usual::
 	make ARCH=openrisc CROSS_COMPILE="or1k-linux-" defconfig
 	make ARCH=openrisc CROSS_COMPILE="or1k-linux-"
 
+If you want to embed initramfs in the kernel, also pass ``CONFIG_INITRAMFS_SOURCE``. For example::
+
+	make ARCH=openrisc CROSS_COMPILE="or1k-linux-" CONFIG_INITRAMFS_SOURCE="path/to/rootfs path/to/devnodes"
+
+For more information on this, please check Documentation/filesystems/ramfs-rootfs-initramfs.rst.
+
 3) Running on FPGA (optional)
 
 The OpenRISC community typically uses FuseSoC to manage building and programming

Documentation/devicetree/bindings/interrupt-controller/opencores,or1k-pic.txt

@@ -0,0 +1,38 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/interrupt-controller/opencores,or1k-pic.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: OpenRISC 1000 Programmable Interrupt Controller
+
+maintainers:
+  - Stefan Kristiansson <[email protected]>
+
+properties:
+  compatible:
+    enum:
+      - opencores,or1k-pic-level
+      - opencores,or1k-pic-edge
+      - opencores,or1200-pic
+      - opencores,or1k-pic
+
+  interrupt-controller: true
+
+  '#interrupt-cells':
+    const: 1
+
+required:
+  - compatible
+  - interrupt-controller
+  - '#interrupt-cells'
+
+additionalProperties: false
+
+examples:
+  - |
+    interrupt-controller {
+        compatible = "opencores,or1k-pic-level";
+        interrupt-controller;
+        #interrupt-cells = <1>;
+    };

Documentation/devicetree/bindings/interrupt-controller/opencores,or1k-pic.yaml

@@ -0,0 +1,45 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/interrupt-controller/openrisc,ompic.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Open Multi-Processor Interrupt Controller
+
+maintainers:
+  - Stafford Horne <[email protected]>
+
+properties:
+  compatible:
+    items:
+      - const: openrisc,ompic
+
+  reg:
+    maxItems: 1
+
+  interrupt-controller: true
+
+  '#interrupt-cells':
+    const: 0
+
+  interrupts:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - interrupt-controller
+  - '#interrupt-cells'
+  - interrupts
+
+additionalProperties: false
+
+examples:
+  - |
+    interrupt-controller@98000000 {
+        compatible = "openrisc,ompic";
+        reg = <0x98000000 16>;
+        interrupt-controller;
+        #interrupt-cells = <0>;
+        interrupts = <1>;
+    };