Add devicetree support for Bitmain BM1880 SoC, consisting of a Dual
core ARM Cortex A53 subsystem, a Single core RISC-V subsystem and a Tensor
Processor subsystem. Only ARM Cortex A53 Application processor subsystem
support is enabled for now.
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx>
---
arch/arm64/boot/dts/Makefile | 1 +
arch/arm64/boot/dts/bitmain/bm1880.dtsi | 119 ++++++++++++++++++++++++
2 files changed, 120 insertions(+)
create mode 100644 arch/arm64/boot/dts/bitmain/bm1880.dtsi
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/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@xxxxxxxxxx>
+ */
+
+#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";
+ };
+ };
+};
--
2.17.1
