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, 178 insertions, 0 deletions

diff --git a/arch/arm64/Kconfig.platforms b/arch/arm64/Kconfig.platforms
index a231815f549b..c5f6a57f16b8 100644
--- a/arch/arm64/Kconfig.platforms
+++ b/arch/arm64/Kconfig.platforms
@@ -52,6 +52,11 @@ config ARCH_BERLIN
 	help
 	  This enables support for Marvell Berlin SoC Family
 
+config ARCH_BITMAIN
+	bool "Bitmain SoC Platforms"
+	help
+	  This enables support for the Bitmain SoC Family.
+
 config ARCH_BRCMSTB
 	bool "Broadcom Set-Top-Box SoCs"
 	select BRCMSTB_L2_IRQ
diff --git a/arch/arm64/boot/dts/Makefile b/arch/arm64/boot/dts/Makefile
index 4690364d584b..5bc7533a12c7 100644
--- a/arch/arm64/boot/dts/Makefile
+++ b/arch/arm64/boot/dts/Makefile
@@ -7,6 +7,7 @@ subdir-y += amd
 subdir-y += amlogic
 subdir-y += apm
 subdir-y += arm
+subdir-y += bitmain
 subdir-y += broadcom
 subdir-y += cavium
 subdir-y += exynos
diff --git a/arch/arm64/boot/dts/bitmain/Makefile b/arch/arm64/boot/dts/bitmain/Makefile
new file mode 100644
index 000000000000..be90a6071be0
--- /dev/null
+++ b/arch/arm64/boot/dts/bitmain/Makefile
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0+
+
+dtb-$(CONFIG_ARCH_BITMAIN) += bm1880-sophon-edge.dtb
diff --git a/arch/arm64/boot/dts/bitmain/bm1880-sophon-edge.dts b/arch/arm64/boot/dts/bitmain/bm1880-sophon-edge.dts
new file mode 100644
index 000000000000..6a3255597138
--- /dev/null
+++ b/arch/arm64/boot/dts/bitmain/bm1880-sophon-edge.dts
@@ -0,0 +1,50 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (c) 2019 Linaro Ltd.
+ * Author: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
+ */
+
+/dts-v1/;
+
+#include "bm1880.dtsi"
+
+/ {
+	compatible = "bitmain,sophon-edge", "bitmain,bm1880";
+	model = "Sophon Edge";
+
+	aliases {
+		serial0 = &uart0;
+		serial1 = &uart2;
+		serial2 = &uart1;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
+	memory@0 {
+		device_type = "memory";
+		reg = <0x1 0x00000000 0x0 0x40000000>; // 1GB
+	};
+
+	uart_clk: uart-clk {
+		compatible = "fixed-clock";
+		clock-frequency = <500000000>;
+		#clock-cells = <0>;
+	};
+};
+
+&uart0 {
+	status = "okay";
+	clocks = <&uart_clk>;
+};
+
+&uart1 {
+	status = "okay";
+	clocks = <&uart_clk>;
+};
+
+&uart2 {
+	status = "okay";
+	clocks = <&uart_clk>;
+};
diff --git a/arch/arm64/boot/dts/bitmain/bm1880.dtsi b/arch/arm64/boot/dts/bitmain/bm1880.dtsi
new file mode 100644
index 000000000000..55a4769e0de2
--- /dev/null
+++ b/arch/arm64/boot/dts/bitmain/bm1880.dtsi
@@ -0,0 +1,119 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (c) 2019 Linaro Ltd.
+ * Author: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
+ */
+
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+
+/ {
+	compatible = "bitmain,bm1880";
+	interrupt-parent = <&gic>;
+	#address-cells = <2>;
+	#size-cells = <2>;
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		cpu0: cpu@0 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a53";
+			reg = <0x0>;
+			enable-method = "psci";
+		};
+
+		cpu1: cpu@1 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a53";
+			reg = <0x1>;
+			enable-method = "psci";
+		};
+	};
+
+	reserved-memory {
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		secmon@100000000 {
+			reg = <0x1 0x00000000 0x0 0x20000>;
+			no-map;
+		};
+
+		jpu@130000000 {
+			reg = <0x1 0x30000000 0x0 0x08000000>; // 128M
+			no-map;
+		};
+
+		vpu@138000000 {
+			reg = <0x1 0x38000000 0x0 0x08000000>; // 128M
+			no-map;
+		};
+	};
+
+	psci {
+		compatible = "arm,psci-0.2";
+		method = "smc";
+	};
+
+	timer {
+		compatible = "arm,armv8-timer";
+		interrupts = <GIC_PPI 13 IRQ_TYPE_LEVEL_LOW>,
+			     <GIC_PPI 14 IRQ_TYPE_LEVEL_LOW>,
+			     <GIC_PPI 11 IRQ_TYPE_LEVEL_LOW>,
+			     <GIC_PPI 10 IRQ_TYPE_LEVEL_LOW>;
+	};
+
+	soc {
+		compatible = "simple-bus";
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		gic: interrupt-controller@50001000 {
+			compatible = "arm,gic-400";
+			reg = <0x0 0x50001000 0x0 0x1000>,
+			      <0x0 0x50002000 0x0 0x2000>;
+			interrupts = <GIC_PPI 9 IRQ_TYPE_LEVEL_LOW>;
+			interrupt-controller;
+			#interrupt-cells = <3>;
+		};
+
+		uart0: serial@58018000 {
+			compatible = "snps,dw-apb-uart";
+			reg = <0x0 0x58018000 0x0 0x2000>;
+			interrupts = <GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>;
+			reg-shift = <2>;
+			reg-io-width = <4>;
+			status = "disabled";
+		};
+
+		uart1: serial@5801A000 {
+			compatible = "snps,dw-apb-uart";
+			reg = <0x0 0x5801a000 0x0 0x2000>;
+			interrupts = <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>;
+			reg-shift = <2>;
+			reg-io-width = <4>;
+			status = "disabled";
+		};
+
+		uart2: serial@5801C000 {
+			compatible = "snps,dw-apb-uart";
+			reg = <0x0 0x5801c000 0x0 0x2000>;
+			interrupts = <GIC_SPI 15 IRQ_TYPE_LEVEL_HIGH>;
+			reg-shift = <2>;
+			reg-io-width = <4>;
+			status = "disabled";
+		};
+
+		uart3: serial@5801E000 {
+			compatible = "snps,dw-apb-uart";
+			reg = <0x0 0x5801e000 0x0 0x2000>;
+			interrupts = <GIC_SPI 18 IRQ_TYPE_LEVEL_HIGH>;
+			reg-shift = <2>;
+			reg-io-width = <4>;
+			status = "disabled";
+		};
+	};
+};