[PATCH v6 07/10] arm64: dts: morello: Add support for common functionalities

Vincenzo Frascino
2025-02-20T18:04:59Z

The Morello architecture is an experimental extension to Armv8.2-A,
which extends the AArch64 state with the principles proposed in
version 7 of the Capability Hardware Enhanced RISC Instructions
(CHERI) ISA.

The Morello Platform (soc) and the Fixed Virtual Platfom (fvp) share
some functionalities that have conveniently been included in
morello.dtsi to avoid duplication.

Introduce morello.dtsi.

Note: Morello fvp will be introduced with a future patch series.

Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
---
arch/arm64/boot/dts/arm/morello.dtsi | 323 +++++++++++++++++++++++++++
1 file changed, 323 insertions(+)
create mode 100644 arch/arm64/boot/dts/arm/morello.dtsi

diff --git a/arch/arm64/boot/dts/arm/morello.dtsi b/arch/arm64/boot/dts/arm/morello.dtsi
new file mode 100644
index 000000000000..e35e5e482720
--- /dev/null
+++ b/arch/arm64/boot/dts/arm/morello.dtsi
@@ -0,0 +1,323 @@
+// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
+/*
+ * Copyright (c) 2020-2024, Arm Limited. All rights reserved.
+ */
+
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+
+/ {
+ interrupt-parent = <&gic>;
+
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ soc_refclk50mhz: clock-50000000 {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <50000000>;
+ clock-output-names = "apb_pclk";
+ };
+
+ soc_refclk85mhz: clock-85000000 {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <85000000>;
+ clock-output-names = "iofpga:aclk";
+ };
+
+ cpus {
+ #address-cells = <2>;
+ #size-cells = <0>;
+
+ cpu0: cpu@0 {
+ compatible = "arm,rainier";
+ reg = <0x0 0x0>;
+ device_type = "cpu";
+ enable-method = "psci";
+ /* 4 ways set associative */
+ i-cache-size = <0x10000>;
+ i-cache-line-size = <64>;
+ i-cache-sets = <512>;
+ d-cache-size = <0x10000>;
+ d-cache-line-size = <64>;
+ d-cache-sets = <512>;
+ next-level-cache = <&l2_0>;
+ clocks = <&scmi_dvfs 0>;
+
+ l2_0: l2-cache-0 {
+ compatible = "cache";
+ cache-level = <2>;
+ /* 8 ways set associative */
+ cache-size = <0x100000>;
+ cache-line-size = <64>;
+ cache-sets = <2048>;
+ cache-unified;
+ next-level-cache = <&l3_0>;
+
+ l3_0: l3-cache {
+ compatible = "cache";
+ cache-level = <3>;
+ cache-size = <0x100000>;
+ cache-unified;
+ };
+ };
+ };
+
+ cpu1: cpu@100 {
+ compatible = "arm,rainier";
+ reg = <0x0 0x100>;
+ device_type = "cpu";
+ enable-method = "psci";
+ /* 4 ways set associative */
+ i-cache-size = <0x10000>;
+ i-cache-line-size = <64>;
+ i-cache-sets = <512>;
+ d-cache-size = <0x10000>;
+ d-cache-line-size = <64>;
+ d-cache-sets = <512>;
+ next-level-cache = <&l2_1>;
+ clocks = <&scmi_dvfs 0>;
+
+ l2_1: l2-cache-1 {
+ compatible = "cache";
+ cache-level = <2>;
+ /* 8 ways set associative */
+ cache-size = <0x100000>;
+ cache-line-size = <64>;
+ cache-sets = <2048>;
+ cache-unified;
+ next-level-cache = <&l3_0>;
+ };
+ };
+
+ cpu2: cpu@10000 {
+ compatible = "arm,rainier";
+ reg = <0x0 0x10000>;
+ device_type = "cpu";
+ enable-method = "psci";
+ /* 4 ways set associative */
+ i-cache-size = <0x10000>;
+ i-cache-line-size = <64>;
+ i-cache-sets = <512>;
+ d-cache-size = <0x10000>;
+ d-cache-line-size = <64>;
+ d-cache-sets = <512>;
+ next-level-cache = <&l2_2>;
+ clocks = <&scmi_dvfs 1>;
+
+ l2_2: l2-cache-2 {
+ compatible = "cache";
+ cache-level = <2>;
+ /* 8 ways set associative */
+ cache-size = <0x100000>;
+ cache-line-size = <64>;
+ cache-sets = <2048>;
+ cache-unified;
+ next-level-cache = <&l3_0>;
+ };
+ };
+
+ cpu3: cpu@10100 {
+ compatible = "arm,rainier";
+ reg = <0x0 0x10100>;
+ device_type = "cpu";
+ enable-method = "psci";
+ /* 4 ways set associative */
+ i-cache-size = <0x10000>;
+ i-cache-line-size = <64>;
+ i-cache-sets = <512>;
+ d-cache-size = <0x10000>;
+ d-cache-line-size = <64>;
+ d-cache-sets = <512>;
+ next-level-cache = <&l2_3>;
+ clocks = <&scmi_dvfs 1>;
+
+ l2_3: l2-cache-3 {
+ compatible = "cache";
+ cache-level = <2>;
+ /* 8 ways set associative */
+ cache-size = <0x100000>;
+ cache-line-size = <64>;
+ cache-sets = <2048>;
+ cache-unified;
+ next-level-cache = <&l3_0>;
+ };
+ };
+ };
+
+ firmware {
+ interrupt-parent = <&gic>;
+
+ scmi {
+ compatible = "arm,scmi";
+ mbox-names = "tx", "rx";
+ mboxes = <&mailbox 1 0>, <&mailbox 1 1>;
+ shmem = <&cpu_scp_hpri0>, <&cpu_scp_hpri1>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ scmi_dvfs: protocol@13 {
+ reg = <0x13>;
+ #clock-cells = <1>;
+ };
+
+ scmi_clk: protocol@14 {
+ reg = <0x14>;
+ #clock-cells = <1>;
+ };
+ };
+ };
+
+ /* The first bank of memory, memory map is actually provided by UEFI. */
+ memory@80000000 {
+ device_type = "memory";
+ /* [0x80000000-0xffffffff] */
+ reg = <0x00000000 0x80000000 0x0 0x7f000000>;
+ };
+
+ memory@8080000000 {
+ device_type = "memory";
+ /* [0x8080000000-0x83f7ffffff] */
+ reg = <0x00000080 0x80000000 0x3 0x78000000>;
+ };
+
+ pmu {
+ compatible = "arm,rainier-pmu";
+ interrupts = <GIC_PPI 7 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
+ psci {
+ compatible = "arm,psci-0.2";
+ method = "smc";
+ };
+
+ reserved-memory {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+
+ secure-firmware@ff000000 {
+ reg = <0x0 0xff000000 0x0 0x01000000>;
+ no-map;
+ };
+ };
+
+ spe-pmu {
+ compatible = "arm,statistical-profiling-extension-v1";
+ interrupts = <GIC_PPI 5 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
+ soc: soc {
+ compatible = "simple-bus";
+ #address-cells = <2>;
+ #size-cells = <2>;
+ interrupt-parent = <&gic>;
+ ranges;
+
+ uart0: serial@2a400000 {
+ compatible = "arm,pl011", "arm,primecell";
+ reg = <0x0 0x2a400000 0x0 0x1000>;
+ interrupts = <GIC_SPI 63 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&soc_refclk50mhz>, <&soc_refclk50mhz>;
+ clock-names = "uartclk", "apb_pclk";
+
+ status = "disabled";
+ };
+
+ gic: interrupt-controller@2c010000 {
+ compatible = "arm,gic-v3";
+ reg = <0x0 0x30000000 0x0 0x10000>, /* GICD */
+ <0x0 0x300c0000 0x0 0x80000>; /* GICR */
+
+ interrupts = <GIC_PPI 9 IRQ_TYPE_LEVEL_HIGH>;
+
+ #interrupt-cells = <3>;
+ interrupt-controller;
+
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+
+ its1: msi-controller@30040000 {
+ compatible = "arm,gic-v3-its";
+ reg = <0x0 0x30040000 0x0 0x20000>;
+
+ msi-controller;
+ #msi-cells = <1>;
+ };
+
+ its2: msi-controller@30060000 {
+ compatible = "arm,gic-v3-its";
+ reg = <0x0 0x30060000 0x0 0x20000>;
+
+ msi-controller;
+ #msi-cells = <1>;
+ };
+
+ its_ccix: msi-controller@30080000 {
+ compatible = "arm,gic-v3-its";
+ reg = <0x0 0x30080000 0x0 0x20000>;
+
+ msi-controller;
+ #msi-cells = <1>;
+ };
+
+ its_pcie: msi-controller@300a0000 {
+ compatible = "arm,gic-v3-its";
+ reg = <0x0 0x300a0000 0x0 0x20000>;
+
+ msi-controller;
+ #msi-cells = <1>;
+ };
+ };
+
+ smmu_dp: iommu@2ce00000 {
+ compatible = "arm,smmu-v3";
+ reg = <0x0 0x2ce00000 0x0 0x40000>;
+
+ interrupts = <GIC_SPI 76 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 80 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 78 IRQ_TYPE_EDGE_RISING>;
+ interrupt-names = "eventq", "gerror", "cmdq-sync";
+ #iommu-cells = <1>;
+ };
+
+ mailbox: mhu@45000000 {
+ compatible = "arm,mhu-doorbell", "arm,primecell";
+ reg = <0x0 0x45000000 0x0 0x1000>;
+
+ interrupts = <GIC_SPI 318 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 316 IRQ_TYPE_LEVEL_HIGH>;
+ #mbox-cells = <2>;
+ clocks = <&soc_refclk50mhz>;
+ clock-names = "apb_pclk";
+ };
+
+ sram: sram@45200000 {
+ compatible = "mmio-sram";
+ reg = <0x0 0x06000000 0x0 0x8000>;
+ ranges = <0 0x0 0x06000000 0x8000>;
+
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ cpu_scp_hpri0: scp-sram@0 {
+ compatible = "arm,scmi-shmem";
+ reg = <0x0 0x80>;
+ };
+
+ cpu_scp_hpri1: scp-sram@80 {
+ compatible = "arm,scmi-shmem";
+ reg = <0x80 0x80>;
+ };
+ };
+ };
+
+ 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>;
+ };
+};
--
2.43.0