Try to add basic DT support for the Amlogic's Meson-AXG A113D SoC,
which describe components as follows: Reserve Memory, CPU, GIC, IRQ,
Timer, UART. It's capable of booting up into the serial console.
Signed-off-by: Yixun Lan <dlan@xxxxxxxxxx>
---
arch/arm64/boot/dts/amlogic/Makefile | 1 +
arch/arm64/boot/dts/amlogic/meson-axg-s400.dts | 22 +++
arch/arm64/boot/dts/amlogic/meson-axg.dtsi | 204 +++++++++++++++++++++++++
3 files changed, 227 insertions(+)
create mode 100644 arch/arm64/boot/dts/amlogic/meson-axg-s400.dts
create mode 100644 arch/arm64/boot/dts/amlogic/meson-axg.dtsi
diff --git a/arch/arm64/boot/dts/amlogic/Makefile b/arch/arm64/boot/dts/amlogic/Makefile
index 7a9f48c27b1f..aedecf088272 100644
--- a/arch/arm64/boot/dts/amlogic/Makefile
+++ b/arch/arm64/boot/dts/amlogic/Makefile
@@ -1,3 +1,4 @@
+dtb-$(CONFIG_ARCH_MESON) += meson-axg-s400.dtb
dtb-$(CONFIG_ARCH_MESON) += meson-gxbb-nanopi-k2.dtb
dtb-$(CONFIG_ARCH_MESON) += meson-gxbb-nexbox-a95x.dtb
dtb-$(CONFIG_ARCH_MESON) += meson-gxbb-odroidc2.dtb
diff --git a/arch/arm64/boot/dts/amlogic/meson-axg-s400.dts b/arch/arm64/boot/dts/amlogic/meson-axg-s400.dts
new file mode 100644
index 000000000000..70eca1f8736a
--- /dev/null
+++ b/arch/arm64/boot/dts/amlogic/meson-axg-s400.dts
@@ -0,0 +1,22 @@
+/*
+ * Copyright (c) 2017 Amlogic, Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+ */
+
+/dts-v1/;
+
+#include "meson-axg.dtsi"
+
+/ {
+ compatible = "amlogic,s400", "amlogic,a113d", "amlogic,meson-axg";
+ model = "Amlogic Meson AXG S400 Development Board";
+
+ aliases {
+ serial0 = &uart_AO;
+ };
+};
+
+&uart_AO {
+ status = "okay";
+};
diff --git a/arch/arm64/boot/dts/amlogic/meson-axg.dtsi b/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
new file mode 100644
index 000000000000..003832890d2b
--- /dev/null
+++ b/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
@@ -0,0 +1,204 @@
+/*
+ * Copyright (c) 2017 Amlogic, Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+ */
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+
+/ {
+ compatible = "amlogic,meson-axg";
+
+ interrupt-parent = <&gic>;
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ reserved-memory {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+
+ /* 16 MiB reserved for Hardware ROM Firmware */
+ hwrom_reserved: hwrom@0 {
+ reg = <0x0 0x0 0x0 0x1000000>;
+ no-map;
+ };
+
+ /* Alternate 3 MiB reserved for ARM Trusted Firmware (BL31) */
+ secmon_reserved: secmon@05000000 {
+ reg = <0x0 0x05000000 0x0 0x300000>;
+ no-map;
+ };
+ };
+
+ cpus {
+ #address-cells = <0x2>;
+ #size-cells = <0x0>;
+
+ cpu0: cpu@0 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a53", "arm,armv8";
+ reg = <0x0 0x0>;
+ enable-method = "psci";
+ next-level-cache = <&l2>;
+ };
+
+ cpu1: cpu@1 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a53", "arm,armv8";
+ reg = <0x0 0x1>;
+ enable-method = "psci";
+ next-level-cache = <&l2>;
+ };
+
+ cpu2: cpu@2 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a53", "arm,armv8";
+ reg = <0x0 0x2>;
+ enable-method = "psci";
+ next-level-cache = <&l2>;
+ };
+
+ cpu3: cpu@3 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a53", "arm,armv8";
+ reg = <0x0 0x3>;
+ enable-method = "psci";
+ next-level-cache = <&l2>;
+ };
+
+ l2: l2-cache0 {
+ compatible = "cache";
+ };
+ };
+
+ arm-pmu {
+ compatible = "arm,cortex-a53-pmu";
+ interrupts = <GIC_SPI 137 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 138 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 153 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 154 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-affinity = <&cpu0>, <&cpu1>, <&cpu2>, <&cpu3>;
+ };
+
+ psci {
+ compatible = "arm,psci-1.0";
+ method = "smc";
+ };
+
+ timer {
+ compatible = "arm,armv8-timer";
+ interrupts = <GIC_PPI 13
+ (GIC_CPU_MASK_RAW(0xff) | IRQ_TYPE_LEVEL_LOW)>,
+ <GIC_PPI 14
+ (GIC_CPU_MASK_RAW(0xff) | IRQ_TYPE_LEVEL_LOW)>,
+ <GIC_PPI 11
+ (GIC_CPU_MASK_RAW(0xff) | IRQ_TYPE_LEVEL_LOW)>,
+ <GIC_PPI 10
+ (GIC_CPU_MASK_RAW(0xff) | IRQ_TYPE_LEVEL_LOW)>;
+ };
+
+ xtal: xtal-clk {
+ compatible = "fixed-clock";
+ clock-frequency = <24000000>;
+ clock-output-names = "xtal";
+ #clock-cells = <0>;
+ };
+
+ soc {
+ compatible = "simple-bus";
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+
+ cbus: cbus@ffd00000 {
+ compatible = "simple-bus";
+ reg = <0x0 0xffd00000 0x0 0x25000>;
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges = <0x0 0x0 0x0 0xffd00000 0x0 0x25000>;
+
+ uart_A: serial@24000 {
+ compatible = "amlogic,meson-gx-uart", "amlogic,meson-uart";
+ reg = <0x0 0x24000 0x0 0x14>;
+ interrupts = <GIC_SPI 26 IRQ_TYPE_EDGE_RISING>;
+ status = "disabled";
+ };
+
+ uart_B: serial@23000 {
+ compatible = "amlogic,meson-gx-uart", "amlogic,meson-uart";
+ reg = <0x0 0x23000 0x0 0x14>;
+ interrupts = <GIC_SPI 75 IRQ_TYPE_EDGE_RISING>;
+ status = "disabled";
+ };
+ };
+
+ gic: interrupt-controller@ffc01000 {
+ compatible = "arm,gic-400";
+ reg = <0x0 0xffc01000 0 0x1000>,
+ <0x0 0xffc02000 0 0x2000>,
+ <0x0 0xffc04000 0 0x2000>,
+ <0x0 0xffc06000 0 0x2000>;
+ interrupt-controller;
+ interrupts = <GIC_PPI 9
+ (GIC_CPU_MASK_SIMPLE(8) | IRQ_TYPE_LEVEL_HIGH)>;
+ #interrupt-cells = <3>;
+ #address-cells = <0>;
+ };
+
+ mailbox: mailbox@ff63dc00 {
+ compatible = "amlogic,meson-gx-mhu", "amlogic,meson-gxbb-mhu";
+ reg = <0 0xff63dc00 0 0x400>;
+ interrupts = <GIC_SPI 208 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 209 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 210 IRQ_TYPE_EDGE_RISING>;
+ #mbox-cells = <1>;
+ };
+
+ sram: sram@fffc0000 {
+ compatible = "amlogic,meson-axg-sram", "mmio-sram";
+ reg = <0x0 0xfffc0000 0x0 0x20000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0 0x0 0xfffc0000 0x20000>;
+
+ cpu_scp_lpri: scp-shmem@0 {
+ compatible = "amlogic,meson-axg-scp-shmem";
+ reg = <0x13000 0x400>;
+ };
+
+ cpu_scp_hpri: scp-shmem@200 {
+ compatible = "amlogic,meson-axg-scp-shmem";
+ reg = <0x13400 0x400>;
+ };
+ };
+
+ aobus: aobus@ff800000 {
+ compatible = "simple-bus";
+ reg = <0x0 0xff800000 0x0 0x100000>;
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges = <0x0 0x0 0x0 0xff800000 0x0 0x100000>;
+
+ uart_AO: serial@3000 {
+ compatible = "amlogic,meson-gx-uart", "amlogic,meson-ao-uart";
+ reg = <0x0 0x3000 0x0 0x18>;
+ interrupts = <GIC_SPI 193 IRQ_TYPE_EDGE_RISING>;
+ clocks = <&xtal>, <&xtal>, <&xtal>;
+ clock-names = "xtal", "pclk", "baud";
+ status = "disabled";
+ };
+
+ uart_AO_B: serial@4000 {
+ compatible = "amlogic,meson-gx-uart", "amlogic,meson-ao-uart";
+ reg = <0x0 0x4000 0x0 0x18>;
+ interrupts = <GIC_SPI 197 IRQ_TYPE_EDGE_RISING>;
+ clocks = <&xtal>, <&xtal>, <&xtal>;
+ clock-names = "xtal", "pclk", "baud";
+ status = "disabled";
+ };
+ };
+ };
+};
--
2.14.1
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