1 files changed, 71 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/spi/brcm,bcm63xx-spi.yaml b/Documentation/devicetree/bindings/spi/brcm,bcm63xx-spi.yaml
new file mode 100644
index 000000000000..fa03cdd68e70
--- /dev/null
+++ b/Documentation/devicetree/bindings/spi/brcm,bcm63xx-spi.yaml
@@ -0,0 +1,71 @@
+# SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/spi/brcm,bcm63xx-spi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Broadcom BCM6348/BCM6358 SPI controller
+
+maintainers:
+  - Jonas Gorski <jonas.gorski@gmail.com>
+
+description: |
+  Broadcom "Low Speed" SPI controller found in many older MIPS based Broadband
+  SoCs.
+
+  This controller has a limitation that can not keep the chip select line active
+  between the SPI transfers within the same SPI message. This can terminate the
+  transaction to some SPI devices prematurely. The issue can be worked around by
+  the controller's prepend mode.
+
+allOf:
+  - $ref: spi-controller.yaml#
+
+properties:
+  compatible:
+    oneOf:
+      - items:
+          - enum:
+              - brcm,bcm6368-spi
+              - brcm,bcm6362-spi
+              - brcm,bcm63268-spi
+          - const: brcm,bcm6358-spi
+      - enum:
+          - brcm,bcm6348-spi
+          - brcm,bcm6358-spi
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: SPI master reference clock
+
+  clock-names:
+    items:
+      - const: spi
+
+  interrupts:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - interrupts
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    spi@10000800 {
+        compatible = "brcm,bcm6368-spi", "brcm,bcm6358-spi";
+        reg = <0x10000800 0x70c>;
+        interrupts = <1>;
+        clocks = <&clkctl 9>;
+        clock-names = "spi";
+        num-cs = <5>;
+        #address-cells = <1>;
+        #size-cells = <0>;
+    };