[PATCH v0 3/5] arm64: dts: aspeed: Add initial AST2700 SoC device tree
Ryan Chen
ryan_chen at aspeedtech.com
Thu Jun 12 03:09:31 PDT 2025
This add the initial device tree support for the ASPEED AST2700 SoC.
- Add top-level compatible string "aspeed,ast2700" and set up
address-cells/size-cells for 64-bit address space.
- Describe a quad-core ARM Cortex-A35 CPU cluster with L2 cache,
including cache properties and PSCI enable-method.
- Add PMU and ARMv8 timer nodes with correct PPI interrupt wiring.
- Model the dual-SoC architecture with two simple-bus nodes:
soc0 (@0x10000000) and soc1 (@0x14000000).
- Add syscon nodes for both SoCs (syscon0, syscon1) with clock/reset
cell definitions and address mapping.
- Add GICv3 interrupt controller node under soc0, with full register
mapping and interrupt properties.
- Hierarchical interrupt controller structure:
- intc0 under soc0, with child intc0_11 node.
- intc1 under soc1, with child intc1_0~intc1_5 nodes.
- Add serial4 node under soc0, others serial node under soc1.
Signed-off-by: Ryan Chen <ryan_chen at aspeedtech.com>
---
arch/arm64/boot/dts/aspeed/aspeed-g7.dtsi | 380 ++++++++++++++++++++++
1 file changed, 380 insertions(+)
create mode 100644 arch/arm64/boot/dts/aspeed/aspeed-g7.dtsi
diff --git a/arch/arm64/boot/dts/aspeed/aspeed-g7.dtsi b/arch/arm64/boot/dts/aspeed/aspeed-g7.dtsi
new file mode 100644
index 000000000000..d197187bcf9f
--- /dev/null
+++ b/arch/arm64/boot/dts/aspeed/aspeed-g7.dtsi
@@ -0,0 +1,380 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+#include <dt-bindings/clock/aspeed,ast2700-scu.h>
+#include <dt-bindings/reset/aspeed,ast2700-scu.h>
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+
+/ {
+ #address-cells = <2>;
+ #size-cells = <1>;
+ interrupt-parent = <&gic>;
+
+ cpus {
+ #address-cells = <2>;
+ #size-cells = <0>;
+
+ cpu0: cpu at 0 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a35";
+ reg = <0x0 0x0>;
+ enable-method = "psci";
+ i-cache-size = <0x8000>;
+ i-cache-line-size = <64>;
+ i-cache-sets = <256>;
+ d-cache-size = <0x8000>;
+ d-cache-line-size = <64>;
+ d-cache-sets = <128>;
+ next-level-cache = <&l2>;
+ };
+
+ cpu1: cpu at 1 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a35";
+ enable-method = "psci";
+ reg = <0x0 0x1>;
+ i-cache-size = <0x8000>;
+ i-cache-line-size = <64>;
+ i-cache-sets = <256>;
+ d-cache-size = <0x8000>;
+ d-cache-line-size = <64>;
+ d-cache-sets = <128>;
+ next-level-cache = <&l2>;
+ };
+
+ cpu2: cpu at 2 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a35";
+ enable-method = "psci";
+ reg = <0x0 0x2>;
+ i-cache-size = <0x8000>;
+ i-cache-line-size = <64>;
+ i-cache-sets = <256>;
+ d-cache-size = <0x8000>;
+ d-cache-line-size = <64>;
+ d-cache-sets = <128>;
+ next-level-cache = <&l2>;
+ };
+
+ cpu3: cpu at 3 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a35";
+ enable-method = "psci";
+ reg = <0x0 0x3>;
+ i-cache-size = <0x8000>;
+ i-cache-line-size = <64>;
+ i-cache-sets = <256>;
+ d-cache-size = <0x8000>;
+ d-cache-line-size = <64>;
+ d-cache-sets = <128>;
+ next-level-cache = <&l2>;
+ };
+
+ l2: l2-cache0 {
+ compatible = "cache";
+ cache-level = <2>;
+ cache-unified;
+ cache-size = <0x80000>;
+ cache-line-size = <64>;
+ cache-sets = <1024>;
+ };
+ };
+
+ arm-pmu {
+ compatible = "arm,cortex-a35-pmu";
+ interrupts = <GIC_PPI 7 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>;
+ };
+
+ psci {
+ compatible = "arm,psci-1.0";
+ method = "smc";
+ };
+
+ timer {
+ compatible = "arm,armv8-timer";
+ interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
+ <GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
+ <GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
+ <GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>;
+ arm,cpu-registers-not-fw-configured;
+ always-on;
+ };
+
+ soc0: soc at 10000000 {
+ compatible = "simple-bus";
+ reg = <0x0 0x10000000 0x10000000>;
+ #address-cells = <2>;
+ #size-cells = <1>;
+ ranges;
+
+ syscon0: syscon at 12c02000 {
+ compatible = "aspeed,ast2700-scu0", "syscon", "simple-mfd";
+ reg = <0x0 0x12c02000 0x1000>;
+ ranges = <0x0 0x0 0 0x12c02000 0x1000>;
+ #address-cells = <2>;
+ #size-cells = <1>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ };
+
+ gic: interrupt-controller at 12200000 {
+ compatible = "arm,gic-v3";
+ reg = <0 0x12200000 0x10000>, /* GICD */
+ <0 0x12280000 0x80000>, /* GICR */
+ <0 0x40440000 0x1000>; /* GICC */
+ #interrupt-cells = <3>;
+ interrupt-controller;
+ interrupts = <GIC_PPI 9 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>;
+ interrupt-parent = <&gic>;
+ };
+
+ serial4: serial at 12c1a000 {
+ compatible = "ns16550a";
+ reg = <0x0 0x12c1a000 0x1000>;
+ clocks = <&syscon0 SCU0_CLK_GATE_UART4CLK>;
+ interrupts = <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>;
+ reg-shift = <2>;
+ status = "disabled";
+ };
+ };
+
+ soc1: soc at 14000000 {
+ compatible = "simple-bus";
+ reg = <0x0 0x14000000 0x10000000>;
+ #address-cells = <2>;
+ #size-cells = <1>;
+ ranges;
+
+ syscon1: syscon at 14c02000 {
+ compatible = "aspeed,ast2700-scu1", "syscon", "simple-mfd";
+ reg = <0x0 0x14c02000 0x1000>;
+ ranges = <0x0 0x0 0x0 0x14c02000 0x1000>;
+ #address-cells = <2>;
+ #size-cells = <1>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ };
+
+ serial12: serial at 14c33b00 {
+ compatible = "ns16550a";
+ reg = <0x0 0x14c33b00 0x100>;
+ clocks = <&syscon1 SCU1_CLK_GATE_UART12CLK>;
+ interrupts-extended =
+ <&intc1_4 18 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>;
+ reg-shift = <2>;
+ status = "disabled";
+ };
+ };
+};
+
+&soc0 {
+ intc0: interrupt-controller at 12100000 {
+ compatible = "simple-mfd";
+ reg = <0 0x12100000 0x4000>;
+ ranges = <0x0 0x0 0x0 0x12100000 0x4000>;
+ #address-cells = <2>;
+ #size-cells = <1>;
+
+ intc0_11: interrupt-controller at 1b00 {
+ compatible = "aspeed,ast2700-intc-ic";
+ reg = <0x0 0x1b00 0x10>;
+ #interrupt-cells = <2>;
+ interrupt-controller;
+ interrupts = <GIC_SPI 192 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>,
+ <GIC_SPI 193 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>,
+ <GIC_SPI 194 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>,
+ <GIC_SPI 195 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>,
+ <GIC_SPI 196 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>,
+ <GIC_SPI 197 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>;
+ };
+ };
+};
+
+&soc1 {
+ intc1: interrupt-controller at 14c18000 {
+ compatible = "simple-mfd";
+ reg = <0 0x14c18000 0x400>;
+ ranges = <0x0 0x0 0x0 0x14c18000 0x400>;
+ #address-cells = <2>;
+ #size-cells = <1>;
+
+ intc1_0: interrupt-controller at 100 {
+ compatible = "aspeed,ast2700-intc-ic";
+ reg = <0x0 0x100 0x10>;
+ #interrupt-cells = <2>;
+ interrupt-controller;
+ interrupts-extended =
+ <&intc0_11 0 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>;
+ };
+
+ intc1_1: interrupt-controller at 110 {
+ compatible = "aspeed,ast2700-intc-ic";
+ reg = <0x0 0x110 0x10>;
+ #interrupt-cells = <2>;
+ interrupt-controller;
+ interrupts-extended =
+ <&intc0_11 1 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>;
+ };
+
+ intc1_2: interrupt-controller at 120 {
+ compatible = "aspeed,ast2700-intc-ic";
+ reg = <0x0 0x120 0x10>;
+ #interrupt-cells = <2>;
+ interrupt-controller;
+ interrupts-extended =
+ <&intc0_11 2 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>;
+ };
+
+ intc1_3: interrupt-controller at 130 {
+ compatible = "aspeed,ast2700-intc-ic";
+ reg = <0x0 0x130 0x10>;
+ #interrupt-cells = <2>;
+ interrupt-controller;
+ interrupts-extended =
+ <&intc0_11 3 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>;
+ };
+
+ intc1_4: interrupt-controller at 140 {
+ compatible = "aspeed,ast2700-intc-ic";
+ reg = <0x0 0x140 0x10>;
+ #interrupt-cells = <2>;
+ interrupt-controller;
+ interrupts-extended =
+ <&intc0_11 4 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>;
+ };
+
+ intc1_5: interrupt-controller at 150 {
+ compatible = "aspeed,ast2700-intc-ic";
+ reg = <0x0 0x150 0x10>;
+ #interrupt-cells = <2>;
+ interrupt-controller;
+ interrupts-extended =
+ <&intc0_11 5 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>;
+ };
+ };
+
+ serial0: serial at 14c33000 {
+ compatible = "ns16550a";
+ reg = <0x0 0x14c33000 0x100>;
+ clocks = <&syscon1 SCU1_CLK_GATE_UART0CLK>;
+ interrupts-extended = <&intc1_4 7 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>;
+ reg-shift = <2>;
+ status = "disabled";
+ };
+
+ serial1: serial at 14c33100 {
+ compatible = "ns16550a";
+ reg = <0x0 0x14c33100 0x100>;
+ clocks = <&syscon1 SCU1_CLK_GATE_UART1CLK>;
+ interrupts-extended = <&intc1_4 8 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>;
+ reg-shift = <2>;
+ status = "disabled";
+ };
+
+ serial2: serial at 14c33200 {
+ compatible = "ns16550a";
+ reg = <0x0 0x14c33200 0x100>;
+ clocks = <&syscon1 SCU1_CLK_GATE_UART2CLK>;
+ interrupts-extended = <&intc1_4 9 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>;
+ reg-shift = <2>;
+ status = "disabled";
+ };
+
+ serial3: serial at 14c33300 {
+ compatible = "ns16550a";
+ reg = <0x0 0x14c33300 0x100>;
+ clocks = <&syscon1 SCU1_CLK_GATE_UART3CLK>;
+ interrupts-extended = <&intc1_4 10 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>;
+ reg-shift = <2>;
+ status = "disabled";
+ };
+
+ serial5: serial at 14c33400 {
+ compatible = "ns16550a";
+ reg = <0x0 0x14c33400 0x100>;
+ clocks = <&syscon1 SCU1_CLK_GATE_UART5CLK>;
+ interrupts-extended = <&intc1_4 11 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>;
+ reg-shift = <2>;
+ status = "disabled";
+ };
+
+ serial6: serial at 14c33500 {
+ compatible = "ns16550a";
+ reg = <0x0 0x14c33500 0x100>;
+ clocks = <&syscon1 SCU1_CLK_GATE_UART6CLK>;
+ interrupts-extended = <&intc1_4 12 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>;
+ reg-shift = <2>;
+ status = "disabled";
+ };
+
+ serial7: serial at 14c33600 {
+ compatible = "ns16550a";
+ reg = <0x0 0x14c33600 0x100>;
+ clocks = <&syscon1 SCU1_CLK_GATE_UART7CLK>;
+ interrupts-extended = <&intc1_4 13 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>;
+ reg-shift = <2>;
+ status = "disabled";
+ };
+
+ serial8: serial at 14c33700 {
+ compatible = "ns16550a";
+ reg = <0x0 0x14c33700 0x100>;
+ clocks = <&syscon1 SCU1_CLK_GATE_UART8CLK>;
+ interrupts-extended = <&intc1_4 14 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>;
+ reg-shift = <2>;
+ status = "disabled";
+ };
+
+ serial9: serial at 14c33800 {
+ compatible = "ns16550a";
+ reg = <0x0 0x14c33800 0x100>;
+ clocks = <&syscon1 SCU1_CLK_GATE_UART9CLK>;
+ interrupts-extended = <&intc1_4 15 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>;
+ reg-shift = <2>;
+ status = "disabled";
+ };
+
+ serial10: serial at 14c33900 {
+ compatible = "ns16550a";
+ reg = <0x0 0x14c33900 0x100>;
+ clocks = <&syscon1 SCU1_CLK_GATE_UART10CLK>;
+ interrupts-extended = <&intc1_4 16 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>;
+ reg-shift = <2>;
+ status = "disabled";
+ };
+
+ serial11: serial at 14c33a00 {
+ compatible = "ns16550a";
+ reg = <0x0 0x14c33a00 0x100>;
+ clocks = <&syscon1 SCU1_CLK_GATE_UART11CLK>;
+ interrupts-extended = <&intc1_4 17 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>;
+ reg-shift = <2>;
+ status = "disabled";
+ };
+
+ serial12: serial at 14c33b00 {
+ compatible = "ns16550a";
+ reg = <0x0 0x14c33b00 0x100>;
+ clocks = <&syscon1 SCU1_CLK_GATE_UART12CLK>;
+ interrupts-extended = <&intc1_4 18 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>;
+ reg-shift = <2>;
+ pinctrl-names = "default";
+ };
+
+ serial13: serial at 14c33c00 {
+ compatible = "ns16550a";
+ reg = <0x0 0x14c33c00 0x100>;
+ clocks = <&syscon1 SCU1_CLK_UART13>;
+ interrupts-extended = <&intc1_0 23 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>;
+ reg-shift = <2>;
+ status = "disabled";
+ };
+
+ serial14: serial at 14c33d00 {
+ compatible = "ns16550a";
+ reg = <0x0 0x14c33d00 0x100>;
+ clocks = <&syscon1 SCU1_CLK_UART14>;
+ interrupts-extended = <&intc1_1 23 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>;
+ reg-shift = <2>;
+ status = "disabled";
+ };
+};
+
--
2.34.1
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