Merge tag 'armsoc-newsoc' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM new SoC family support from Arnd Bergmann:
 "Two new SoC families are added this time.

  Sugaya Taichi submitted support for the Milbeaut SoC family from
  Socionext and explains:

    "SC2000 is a SoC of the Milbeaut series. equipped with a DSP
     optimized for computer vision. It also features advanced
     functionalities such as 360-degree, real-time spherical stitching
     with multi cameras, image stabilization for without mechanical
     gimbals, and rolling shutter correction. More detail is below:

       https://www.socionext.com/en/products/assp/milbeaut/SC2000.html"

  Interestingly, this one has a history dating back to older chips made
  by Socionext and previously Matsushita/Panasonic based on their own
  mn10300 CPU architecture that was removed from the kernel last year.

  Manivannan Sadhasivam adds support for another SoC family, this is the
  Bitmain BM1880 chip used in the Sophon Edge TPU developer board.

  The chip is intended for Deep Learning applications, and comes with
  dual-core Arm Cortex-A53 to run Linux as well as a RISC-V
  microcontroller core to control the tensor unit. For the moment, the
  TPU is not accessible in mainline Linux, so we treat it as a generic
  Arm SoC.

  More information is available at

       https://www.sophon.ai/"

* tag 'armsoc-newsoc' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
  ARM: multi_v7_defconfig: add ARCH_MILBEAUT and ARCH_MILBEAUT_M10V
  ARM: configs: Add Milbeaut M10V defconfig
  ARM: dts: milbeaut: Add device tree set for the Milbeaut M10V board
  clocksource/drivers/timer-milbeaut: Introduce timer for Milbeaut SoCs
  dt-bindings: timer: Add Milbeaut M10V timer description
  ARM: milbeaut: Add basic support for Milbeaut m10v SoC
  dt-bindings: Add documentation for Milbeaut SoCs
  dt-bindings: arm: Add SMP enable-method for Milbeaut
  dt-bindings: sram: milbeaut: Add binding for Milbeaut smp-sram
  MAINTAINERS: Add entry for Bitmain SoC platform
  arm64: dts: bitmain: Add Sophon Egde board support
  arm64: dts: bitmain: Add BM1880 SoC support
  arm64: Add ARCH_BITMAIN platform
  dt-bindings: arm: Document Bitmain BM1880 SoC

5 files changed, 82 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/arm/bitmain.yaml b/Documentation/devicetree/bindings/arm/bitmain.yaml
new file mode 100644
index 000000000000..0efdb4ac028e
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/bitmain.yaml
@@ -0,0 +1,18 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/bitmain.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Bitmain platform device tree bindings
+
+maintainers:
+  - Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
+
+properties:
+  compatible:
+    items:
+      - enum:
+        - bitmain,sophon-edge
+      - const: bitmain,bm1880
+...
diff --git a/Documentation/devicetree/bindings/arm/cpus.yaml b/Documentation/devicetree/bindings/arm/cpus.yaml
index 298c17b327c6..365dcf384d73 100644
--- a/Documentation/devicetree/bindings/arm/cpus.yaml
+++ b/Documentation/devicetree/bindings/arm/cpus.yaml
@@ -228,6 +228,7 @@ patternProperties:
                 - renesas,r9a06g032-smp
                 - rockchip,rk3036-smp
                 - rockchip,rk3066-smp
+		- socionext,milbeaut-m10v-smp
                 - ste,dbx500-smp
 
       cpu-release-addr:
diff --git a/Documentation/devicetree/bindings/arm/socionext/milbeaut.yaml b/Documentation/devicetree/bindings/arm/socionext/milbeaut.yaml
new file mode 100644
index 000000000000..aae53fc3cb1e
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/socionext/milbeaut.yaml
@@ -0,0 +1,22 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/milbeaut.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Milbeaut platforms device tree bindings
+
+maintainers:
+  - Taichi Sugaya <sugaya.taichi@socionext.com>
+  - Takao Orito <orito.takao@socionext.com>
+
+properties:
+  $nodename:
+    const: '/'
+  compatible:
+    oneOf:
+      - items:
+          - enum:
+              - socionext,milbeaut-m10v-evb
+          - const: socionext,sc2000a
+...
diff --git a/Documentation/devicetree/bindings/sram/milbeaut-smp-sram.txt b/Documentation/devicetree/bindings/sram/milbeaut-smp-sram.txt
new file mode 100644
index 000000000000..194f6a3c1c1e
--- /dev/null
+++ b/Documentation/devicetree/bindings/sram/milbeaut-smp-sram.txt
@@ -0,0 +1,24 @@
+Milbeaut SRAM for smp bringup
+
+Milbeaut SoCs use a part of the sram for the bringup of the secondary cores.
+Once they get powered up in the bootloader, they stay at the specific part
+of the sram.
+Therefore the part needs to be added as the sub-node of mmio-sram.
+
+Required sub-node properties:
+- compatible : should be "socionext,milbeaut-smp-sram"
+
+Example:
+
+        sram: sram@0 {
+                compatible = "mmio-sram";
+                reg = <0x0 0x10000>;
+                #address-cells = <1>;
+                #size-cells = <1>;
+                ranges = <0 0x0 0x10000>;
+
+                smp-sram@f100 {
+                        compatible = "socionext,milbeaut-smp-sram";
+                        reg = <0xf100 0x20>;
+                };
+        };
diff --git a/Documentation/devicetree/bindings/timer/socionext,milbeaut-timer.txt b/Documentation/devicetree/bindings/timer/socionext,milbeaut-timer.txt
new file mode 100644
index 000000000000..ac44c4b67530
--- /dev/null
+++ b/Documentation/devicetree/bindings/timer/socionext,milbeaut-timer.txt
@@ -0,0 +1,17 @@
+Milbeaut SoCs Timer Controller
+
+Required properties:
+
+- compatible : should be "socionext,milbeaut-timer".
+- reg : Specifies base physical address and size of the registers.
+- interrupts : The interrupt of the first timer.
+- clocks: phandle to the input clk.
+
+Example:
+
+timer {
+	compatible = "socionext,milbeaut-timer";
+	reg = <0x1e000050 0x20>
+	interrupts = <0 91 4>;
+	clocks = <&clk 4>;
+};