SpacemiT K3 is equipped with 8 X100 cores, which are RVA23 compliant.
Add nodes of uarts, timer and interrupt-controllers.
Signed-off-by: Guodong Xu <guodong@riscstar.com>
---
v4: Fix missing blank space after commas in compatible string.
Add m-mode imsic and aplic node.
Reorder properties in simsic, saplic, mimsic, and maplic nodes
to match DTS coding style.
v3: Remove "supm" from the riscv,isa-extensions list.
v2: Remove aliases from k3.dtsi, they should be in board DTS.
Updated riscv,isa-extensions with new extensions from the extensions.yaml.
---
arch/riscv/boot/dts/spacemit/k3.dtsi | 590 +++++++++++++++++++++++++++++++++++
1 file changed, 590 insertions(+)
diff --git a/arch/riscv/boot/dts/spacemit/k3.dtsi b/arch/riscv/boot/dts/spacemit/k3.dtsi
new file mode 100644
index 000000000000..a815f85cf5a6
--- /dev/null
+++ b/arch/riscv/boot/dts/spacemit/k3.dtsi
@@ -0,0 +1,590 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/*
+ * Copyright (c) 2025 SpacemiT (Hangzhou) Technology Co. Ltd
+ * Copyright (c) 2025 Guodong Xu <guodong@riscstar.com>
+ */
+
+#include <dt-bindings/interrupt-controller/irq.h>
+
+/dts-v1/;
+
+/ {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ model = "SpacemiT K3";
+ compatible = "spacemit,k3";
+
+ cpus: cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ timebase-frequency = <24000000>;
+
+ cpu_0: cpu@0 {
+ compatible = "spacemit,x100", "riscv";
+ device_type = "cpu";
+ reg = <0>;
+ riscv,isa-base = "rv64i";
+ riscv,isa-extensions = "i", "m", "a", "f", "d", "c", "b", "v", "h",
+ "sha", "shcounterenw", "shgatpa", "shtvala",
+ "shvsatpa", "shvstvala", "shvstvecd", "smaia",
+ "smstateen", "ssaia", "ssccptr", "sscofpmf",
+ "sscounterenw", "ssnpm", "ssstateen", "sstc",
+ "sstvala", "sstvecd", "ssu64xl", "svade",
+ "svinval", "svnapot", "svpbmt", "za64rs",
+ "zawrs", "zba", "zbb", "zbc", "zbs", "zca",
+ "zcb", "zcd", "zcmop", "zfa", "zfbfmin",
+ "zfh", "zfhmin", "zicbom", "zicbop", "zicboz",
+ "ziccamoa", "ziccif", "zicclsm", "zicntr",
+ "zicond", "zicsr", "zifencei", "zihintntl",
+ "zihintpause", "zihpm", "zimop", "zkt", "zvbb",
+ "zvbc", "zvfbfmin", "zvfbfwma", "zvfh",
+ "zvfhmin", "zvkb", "zvkg", "zvkn", "zvknc",
+ "zvkned", "zvkng", "zvknha", "zvknhb", "zvks",
+ "zvksc", "zvksed", "zvksg", "zvksh", "zvkt";
+ riscv,cbom-block-size = <64>;
+ riscv,cbop-block-size = <64>;
+ riscv,cboz-block-size = <64>;
+ i-cache-block-size = <64>;
+ i-cache-size = <65536>;
+ i-cache-sets = <256>;
+ d-cache-block-size = <64>;
+ d-cache-size = <65536>;
+ d-cache-sets = <256>;
+ next-level-cache = <&l2_cache0>;
+ mmu-type = "riscv,sv39";
+
+ cpu0_intc: interrupt-controller {
+ compatible = "riscv,cpu-intc";
+ #interrupt-cells = <1>;
+ interrupt-controller;
+ };
+ };
+
+ cpu_1: cpu@1 {
+ compatible = "spacemit,x100", "riscv";
+ device_type = "cpu";
+ reg = <1>;
+ riscv,isa-base = "rv64i";
+ riscv,isa-extensions = "i", "m", "a", "f", "d", "c", "b", "v", "h",
+ "sha", "shcounterenw", "shgatpa", "shtvala",
+ "shvsatpa", "shvstvala", "shvstvecd", "smaia",
+ "smstateen", "ssaia", "ssccptr", "sscofpmf",
+ "sscounterenw", "ssnpm", "ssstateen", "sstc",
+ "sstvala", "sstvecd", "ssu64xl", "svade",
+ "svinval", "svnapot", "svpbmt", "za64rs",
+ "zawrs", "zba", "zbb", "zbc", "zbs", "zca",
+ "zcb", "zcd", "zcmop", "zfa", "zfbfmin",
+ "zfh", "zfhmin", "zicbom", "zicbop", "zicboz",
+ "ziccamoa", "ziccif", "zicclsm", "zicntr",
+ "zicond", "zicsr", "zifencei", "zihintntl",
+ "zihintpause", "zihpm", "zimop", "zkt", "zvbb",
+ "zvbc", "zvfbfmin", "zvfbfwma", "zvfh",
+ "zvfhmin", "zvkb", "zvkg", "zvkn", "zvknc",
+ "zvkned", "zvkng", "zvknha", "zvknhb", "zvks",
+ "zvksc", "zvksed", "zvksg", "zvksh", "zvkt";
+ riscv,cbom-block-size = <64>;
+ riscv,cbop-block-size = <64>;
+ riscv,cboz-block-size = <64>;
+ i-cache-block-size = <64>;
+ i-cache-size = <65536>;
+ i-cache-sets = <256>;
+ d-cache-block-size = <64>;
+ d-cache-size = <65536>;
+ d-cache-sets = <256>;
+ next-level-cache = <&l2_cache0>;
+ mmu-type = "riscv,sv39";
+
+ cpu1_intc: interrupt-controller {
+ compatible = "riscv,cpu-intc";
+ #interrupt-cells = <1>;
+ interrupt-controller;
+ };
+ };
+
+ cpu_2: cpu@2 {
+ compatible = "spacemit,x100", "riscv";
+ device_type = "cpu";
+ reg = <2>;
+ riscv,isa-base = "rv64i";
+ riscv,isa-extensions = "i", "m", "a", "f", "d", "c", "b", "v", "h",
+ "sha", "shcounterenw", "shgatpa", "shtvala",
+ "shvsatpa", "shvstvala", "shvstvecd", "smaia",
+ "smstateen", "ssaia", "ssccptr", "sscofpmf",
+ "sscounterenw", "ssnpm", "ssstateen", "sstc",
+ "sstvala", "sstvecd", "ssu64xl", "svade",
+ "svinval", "svnapot", "svpbmt", "za64rs",
+ "zawrs", "zba", "zbb", "zbc", "zbs", "zca",
+ "zcb", "zcd", "zcmop", "zfa", "zfbfmin",
+ "zfh", "zfhmin", "zicbom", "zicbop", "zicboz",
+ "ziccamoa", "ziccif", "zicclsm", "zicntr",
+ "zicond", "zicsr", "zifencei", "zihintntl",
+ "zihintpause", "zihpm", "zimop", "zkt", "zvbb",
+ "zvbc", "zvfbfmin", "zvfbfwma", "zvfh",
+ "zvfhmin", "zvkb", "zvkg", "zvkn", "zvknc",
+ "zvkned", "zvkng", "zvknha", "zvknhb", "zvks",
+ "zvksc", "zvksed", "zvksg", "zvksh", "zvkt";
+ riscv,cbom-block-size = <64>;
+ riscv,cbop-block-size = <64>;
+ riscv,cboz-block-size = <64>;
+ i-cache-block-size = <64>;
+ i-cache-size = <65536>;
+ i-cache-sets = <256>;
+ d-cache-block-size = <64>;
+ d-cache-size = <65536>;
+ d-cache-sets = <256>;
+ next-level-cache = <&l2_cache0>;
+ mmu-type = "riscv,sv39";
+
+ cpu2_intc: interrupt-controller {
+ compatible = "riscv,cpu-intc";
+ #interrupt-cells = <1>;
+ interrupt-controller;
+ };
+ };
+
+ cpu_3: cpu@3 {
+ compatible = "spacemit,x100", "riscv";
+ device_type = "cpu";
+ reg = <3>;
+ riscv,isa-base = "rv64i";
+ riscv,isa-extensions = "i", "m", "a", "f", "d", "c", "b", "v", "h",
+ "sha", "shcounterenw", "shgatpa", "shtvala",
+ "shvsatpa", "shvstvala", "shvstvecd", "smaia",
+ "smstateen", "ssaia", "ssccptr", "sscofpmf",
+ "sscounterenw", "ssnpm", "ssstateen", "sstc",
+ "sstvala", "sstvecd", "ssu64xl", "svade",
+ "svinval", "svnapot", "svpbmt", "za64rs",
+ "zawrs", "zba", "zbb", "zbc", "zbs", "zca",
+ "zcb", "zcd", "zcmop", "zfa", "zfbfmin",
+ "zfh", "zfhmin", "zicbom", "zicbop", "zicboz",
+ "ziccamoa", "ziccif", "zicclsm", "zicntr",
+ "zicond", "zicsr", "zifencei", "zihintntl",
+ "zihintpause", "zihpm", "zimop", "zkt", "zvbb",
+ "zvbc", "zvfbfmin", "zvfbfwma", "zvfh",
+ "zvfhmin", "zvkb", "zvkg", "zvkn", "zvknc",
+ "zvkned", "zvkng", "zvknha", "zvknhb", "zvks",
+ "zvksc", "zvksed", "zvksg", "zvksh", "zvkt";
+ riscv,cbom-block-size = <64>;
+ riscv,cbop-block-size = <64>;
+ riscv,cboz-block-size = <64>;
+ i-cache-block-size = <64>;
+ i-cache-size = <65536>;
+ i-cache-sets = <256>;
+ d-cache-block-size = <64>;
+ d-cache-size = <65536>;
+ d-cache-sets = <256>;
+ next-level-cache = <&l2_cache0>;
+ mmu-type = "riscv,sv39";
+
+ cpu3_intc: interrupt-controller {
+ compatible = "riscv,cpu-intc";
+ #interrupt-cells = <1>;
+ interrupt-controller;
+ };
+ };
+
+ cpu_4: cpu@4 {
+ compatible = "spacemit,x100", "riscv";
+ device_type = "cpu";
+ reg = <4>;
+ riscv,isa-base = "rv64i";
+ riscv,isa-extensions = "i", "m", "a", "f", "d", "c", "b", "v", "h",
+ "sha", "shcounterenw", "shgatpa", "shtvala",
+ "shvsatpa", "shvstvala", "shvstvecd", "smaia",
+ "smstateen", "ssaia", "ssccptr", "sscofpmf",
+ "sscounterenw", "ssnpm", "ssstateen", "sstc",
+ "sstvala", "sstvecd", "ssu64xl", "svade",
+ "svinval", "svnapot", "svpbmt", "za64rs",
+ "zawrs", "zba", "zbb", "zbc", "zbs", "zca",
+ "zcb", "zcd", "zcmop", "zfa", "zfbfmin",
+ "zfh", "zfhmin", "zicbom", "zicbop", "zicboz",
+ "ziccamoa", "ziccif", "zicclsm", "zicntr",
+ "zicond", "zicsr", "zifencei", "zihintntl",
+ "zihintpause", "zihpm", "zimop", "zkt", "zvbb",
+ "zvbc", "zvfbfmin", "zvfbfwma", "zvfh",
+ "zvfhmin", "zvkb", "zvkg", "zvkn", "zvknc",
+ "zvkned", "zvkng", "zvknha", "zvknhb", "zvks",
+ "zvksc", "zvksed", "zvksg", "zvksh", "zvkt";
+ riscv,cbom-block-size = <64>;
+ riscv,cbop-block-size = <64>;
+ riscv,cboz-block-size = <64>;
+ i-cache-block-size = <64>;
+ i-cache-size = <65536>;
+ i-cache-sets = <256>;
+ d-cache-block-size = <64>;
+ d-cache-size = <65536>;
+ d-cache-sets = <256>;
+ next-level-cache = <&l2_cache1>;
+ mmu-type = "riscv,sv39";
+
+ cpu4_intc: interrupt-controller {
+ compatible = "riscv,cpu-intc";
+ #interrupt-cells = <1>;
+ interrupt-controller;
+ };
+ };
+
+ cpu_5: cpu@5 {
+ compatible = "spacemit,x100", "riscv";
+ device_type = "cpu";
+ reg = <5>;
+ riscv,isa-base = "rv64i";
+ riscv,isa-extensions = "i", "m", "a", "f", "d", "c", "b", "v", "h",
+ "sha", "shcounterenw", "shgatpa", "shtvala",
+ "shvsatpa", "shvstvala", "shvstvecd", "smaia",
+ "smstateen", "ssaia", "ssccptr", "sscofpmf",
+ "sscounterenw", "ssnpm", "ssstateen", "sstc",
+ "sstvala", "sstvecd", "ssu64xl", "svade",
+ "svinval", "svnapot", "svpbmt", "za64rs",
+ "zawrs", "zba", "zbb", "zbc", "zbs", "zca",
+ "zcb", "zcd", "zcmop", "zfa", "zfbfmin",
+ "zfh", "zfhmin", "zicbom", "zicbop", "zicboz",
+ "ziccamoa", "ziccif", "zicclsm", "zicntr",
+ "zicond", "zicsr", "zifencei", "zihintntl",
+ "zihintpause", "zihpm", "zimop", "zkt", "zvbb",
+ "zvbc", "zvfbfmin", "zvfbfwma", "zvfh",
+ "zvfhmin", "zvkb", "zvkg", "zvkn", "zvknc",
+ "zvkned", "zvkng", "zvknha", "zvknhb", "zvks",
+ "zvksc", "zvksed", "zvksg", "zvksh", "zvkt";
+ riscv,cbom-block-size = <64>;
+ riscv,cbop-block-size = <64>;
+ riscv,cboz-block-size = <64>;
+ i-cache-block-size = <64>;
+ i-cache-size = <65536>;
+ i-cache-sets = <256>;
+ d-cache-block-size = <64>;
+ d-cache-size = <65536>;
+ d-cache-sets = <256>;
+ next-level-cache = <&l2_cache1>;
+ mmu-type = "riscv,sv39";
+
+ cpu5_intc: interrupt-controller {
+ compatible = "riscv,cpu-intc";
+ #interrupt-cells = <1>;
+ interrupt-controller;
+ };
+ };
+
+ cpu_6: cpu@6 {
+ compatible = "spacemit,x100", "riscv";
+ device_type = "cpu";
+ reg = <6>;
+ riscv,isa-base = "rv64i";
+ riscv,isa-extensions = "i", "m", "a", "f", "d", "c", "b", "v", "h",
+ "sha", "shcounterenw", "shgatpa", "shtvala",
+ "shvsatpa", "shvstvala", "shvstvecd", "smaia",
+ "smstateen", "ssaia", "ssccptr", "sscofpmf",
+ "sscounterenw", "ssnpm", "ssstateen", "sstc",
+ "sstvala", "sstvecd", "ssu64xl", "svade",
+ "svinval", "svnapot", "svpbmt", "za64rs",
+ "zawrs", "zba", "zbb", "zbc", "zbs", "zca",
+ "zcb", "zcd", "zcmop", "zfa", "zfbfmin",
+ "zfh", "zfhmin", "zicbom", "zicbop", "zicboz",
+ "ziccamoa", "ziccif", "zicclsm", "zicntr",
+ "zicond", "zicsr", "zifencei", "zihintntl",
+ "zihintpause", "zihpm", "zimop", "zkt", "zvbb",
+ "zvbc", "zvfbfmin", "zvfbfwma", "zvfh",
+ "zvfhmin", "zvkb", "zvkg", "zvkn", "zvknc",
+ "zvkned", "zvkng", "zvknha", "zvknhb", "zvks",
+ "zvksc", "zvksed", "zvksg", "zvksh", "zvkt";
+ riscv,cbom-block-size = <64>;
+ riscv,cbop-block-size = <64>;
+ riscv,cboz-block-size = <64>;
+ i-cache-block-size = <64>;
+ i-cache-size = <65536>;
+ i-cache-sets = <256>;
+ d-cache-block-size = <64>;
+ d-cache-size = <65536>;
+ d-cache-sets = <256>;
+ next-level-cache = <&l2_cache1>;
+ mmu-type = "riscv,sv39";
+
+ cpu6_intc: interrupt-controller {
+ compatible = "riscv,cpu-intc";
+ #interrupt-cells = <1>;
+ interrupt-controller;
+ };
+ };
+
+ cpu_7: cpu@7 {
+ compatible = "spacemit,x100", "riscv";
+ device_type = "cpu";
+ reg = <7>;
+ riscv,isa-base = "rv64i";
+ riscv,isa-extensions = "i", "m", "a", "f", "d", "c", "b", "v", "h",
+ "sha", "shcounterenw", "shgatpa", "shtvala",
+ "shvsatpa", "shvstvala", "shvstvecd", "smaia",
+ "smstateen", "ssaia", "ssccptr", "sscofpmf",
+ "sscounterenw", "ssnpm", "ssstateen", "sstc",
+ "sstvala", "sstvecd", "ssu64xl", "svade",
+ "svinval", "svnapot", "svpbmt", "za64rs",
+ "zawrs", "zba", "zbb", "zbc", "zbs", "zca",
+ "zcb", "zcd", "zcmop", "zfa", "zfbfmin",
+ "zfh", "zfhmin", "zicbom", "zicbop", "zicboz",
+ "ziccamoa", "ziccif", "zicclsm", "zicntr",
+ "zicond", "zicsr", "zifencei", "zihintntl",
+ "zihintpause", "zihpm", "zimop", "zkt", "zvbb",
+ "zvbc", "zvfbfmin", "zvfbfwma", "zvfh",
+ "zvfhmin", "zvkb", "zvkg", "zvkn", "zvknc",
+ "zvkned", "zvkng", "zvknha", "zvknhb", "zvks",
+ "zvksc", "zvksed", "zvksg", "zvksh", "zvkt";
+ riscv,cbom-block-size = <64>;
+ riscv,cbop-block-size = <64>;
+ riscv,cboz-block-size = <64>;
+ i-cache-block-size = <64>;
+ i-cache-size = <65536>;
+ i-cache-sets = <256>;
+ d-cache-block-size = <64>;
+ d-cache-size = <65536>;
+ d-cache-sets = <256>;
+ next-level-cache = <&l2_cache1>;
+ mmu-type = "riscv,sv39";
+
+ cpu7_intc: interrupt-controller {
+ compatible = "riscv,cpu-intc";
+ #interrupt-cells = <1>;
+ interrupt-controller;
+ };
+ };
+
+ l2_cache0: cache-controller-0 {
+ compatible = "cache";
+ cache-block-size = <64>;
+ cache-level = <2>;
+ cache-size = <4194304>;
+ cache-sets = <4096>;
+ cache-unified;
+ };
+
+ l2_cache1: cache-controller-1 {
+ compatible = "cache";
+ cache-block-size = <64>;
+ cache-level = <2>;
+ cache-size = <4194304>;
+ cache-sets = <4096>;
+ cache-unified;
+ };
+
+ cpu-map {
+ cluster0 {
+ core0 {
+ cpu = <&cpu_0>;
+ };
+ core1 {
+ cpu = <&cpu_1>;
+ };
+ core2 {
+ cpu = <&cpu_2>;
+ };
+ core3 {
+ cpu = <&cpu_3>;
+ };
+ };
+
+ cluster1 {
+ core0 {
+ cpu = <&cpu_4>;
+ };
+ core1 {
+ cpu = <&cpu_5>;
+ };
+ core2 {
+ cpu = <&cpu_6>;
+ };
+ core3 {
+ cpu = <&cpu_7>;
+ };
+ };
+ };
+ };
+
+ soc: soc {
+ compatible = "simple-bus";
+ interrupt-parent = <&saplic>;
+ #address-cells = <2>;
+ #size-cells = <2>;
+ dma-noncoherent;
+ ranges;
+
+ uart0: serial@d4017000 {
+ compatible = "spacemit,k3-uart", "intel,xscale-uart";
+ reg = <0x0 0xd4017000 0x0 0x100>;
+ reg-shift = <2>;
+ reg-io-width = <4>;
+ clock-frequency = <14700000>;
+ interrupts = <42 IRQ_TYPE_LEVEL_HIGH>;
+
+ status = "disabled";
+ };
+
+ uart2: serial@d4017100 {
+ compatible = "spacemit,k3-uart", "intel,xscale-uart";
+ reg = <0x0 0xd4017100 0x0 0x100>;
+ reg-shift = <2>;
+ reg-io-width = <4>;
+ clock-frequency = <14700000>;
+ interrupts = <44 IRQ_TYPE_LEVEL_HIGH>;
+
+ status = "disabled";
+ };
+
+ uart3: serial@d4017200 {
+ compatible = "spacemit,k3-uart", "intel,xscale-uart";
+ reg = <0x0 0xd4017200 0x0 0x100>;
+ reg-shift = <2>;
+ reg-io-width = <4>;
+ clock-frequency = <14700000>;
+ interrupts = <45 IRQ_TYPE_LEVEL_HIGH>;
+
+ status = "disabled";
+ };
+
+ uart4: serial@d4017300 {
+ compatible = "spacemit,k3-uart", "intel,xscale-uart";
+ reg = <0x0 0xd4017300 0x0 0x100>;
+ reg-shift = <2>;
+ reg-io-width = <4>;
+ clock-frequency = <14700000>;
+ interrupts = <46 IRQ_TYPE_LEVEL_HIGH>;
+
+ status = "disabled";
+ };
+
+ uart5: serial@d4017400 {
+ compatible = "spacemit,k3-uart", "intel,xscale-uart";
+ reg = <0x0 0xd4017400 0x0 0x100>;
+ reg-shift = <2>;
+ reg-io-width = <4>;
+ clock-frequency = <14700000>;
+ interrupts = <47 IRQ_TYPE_LEVEL_HIGH>;
+
+ status = "disabled";
+ };
+
+ uart6: serial@d4017500 {
+ compatible = "spacemit,k3-uart", "intel,xscale-uart";
+ reg = <0x0 0xd4017500 0x0 0x100>;
+ reg-shift = <2>;
+ reg-io-width = <4>;
+ clock-frequency = <14700000>;
+ interrupts = <48 IRQ_TYPE_LEVEL_HIGH>;
+
+ status = "disabled";
+ };
+
+ uart7: serial@d4017600 {
+ compatible = "spacemit,k3-uart", "intel,xscale-uart";
+ reg = <0x0 0xd4017600 0x0 0x100>;
+ reg-shift = <2>;
+ reg-io-width = <4>;
+ clock-frequency = <14700000>;
+ interrupts = <49 IRQ_TYPE_LEVEL_HIGH>;
+
+ status = "disabled";
+ };
+
+ uart8: serial@d4017700 {
+ compatible = "spacemit,k3-uart", "intel,xscale-uart";
+ reg = <0x0 0xd4017700 0x0 0x100>;
+ reg-shift = <2>;
+ reg-io-width = <4>;
+ clock-frequency = <14700000>;
+ interrupts = <50 IRQ_TYPE_LEVEL_HIGH>;
+
+ status = "disabled";
+ };
+
+ uart9: serial@d4017800 {
+ compatible = "spacemit,k3-uart", "intel,xscale-uart";
+ reg = <0x0 0xd4017800 0x0 0x100>;
+ reg-shift = <2>;
+ reg-io-width = <4>;
+ clock-frequency = <14700000>;
+ interrupts = <51 IRQ_TYPE_LEVEL_HIGH>;
+
+ status = "disabled";
+ };
+
+ uart10: serial@d401f000 {
+ compatible = "spacemit,k3-uart", "intel,xscale-uart";
+ reg = <0x0 0xd401f000 0x0 0x100>;
+ reg-shift = <2>;
+ reg-io-width = <4>;
+ clock-frequency = <14700000>;
+ interrupts = <281 IRQ_TYPE_LEVEL_HIGH>;
+
+ status = "disabled";
+ };
+
+ simsic: interrupt-controller@e0400000 {
+ compatible = "spacemit,k3-imsics", "riscv,imsics";
+ reg = <0x0 0xe0400000 0x0 0x200000>;
+ #interrupt-cells = <0>;
+ #msi-cells = <0>;
+ interrupt-controller;
+ interrupts-extended = <&cpu0_intc 9>, <&cpu1_intc 9>,
+ <&cpu2_intc 9>, <&cpu3_intc 9>,
+ <&cpu4_intc 9>, <&cpu5_intc 9>,
+ <&cpu6_intc 9>, <&cpu7_intc 9>;
+ msi-controller;
+ riscv,guest-index-bits = <6>;
+ riscv,hart-index-bits = <4>;
+ riscv,num-guest-ids = <511>;
+ riscv,num-ids = <511>;
+ };
+
+ saplic: interrupt-controller@e0804000 {
+ compatible = "spacemit,k3-aplic", "riscv,aplic";
+ reg = <0x0 0xe0804000 0x0 0x4000>;
+ #interrupt-cells = <2>;
+ interrupt-controller;
+ msi-parent = <&simsic>;
+ riscv,num-sources = <512>;
+ };
+
+ clint: timer@e081c000 {
+ compatible = "spacemit,k3-clint", "sifive,clint0";
+ reg = <0x0 0xe081c000 0x0 0x4000>;
+ interrupts-extended = <&cpu0_intc 3>, <&cpu0_intc 7>,
+ <&cpu1_intc 3>, <&cpu1_intc 7>,
+ <&cpu2_intc 3>, <&cpu2_intc 7>,
+ <&cpu3_intc 3>, <&cpu3_intc 7>,
+ <&cpu4_intc 3>, <&cpu4_intc 7>,
+ <&cpu5_intc 3>, <&cpu5_intc 7>,
+ <&cpu6_intc 3>, <&cpu6_intc 7>,
+ <&cpu7_intc 3>, <&cpu7_intc 7>;
+ };
+
+ mimsic: interrupt-controller@f1000000 {
+ compatible = "spacemit,k3-imsics", "riscv,imsics";
+ reg = <0x0 0xf1000000 0x0 0x10000>;
+ #interrupt-cells = <0>;
+ #msi-cells = <0>;
+ interrupt-controller;
+ interrupts-extended = <&cpu0_intc 11>, <&cpu1_intc 11>,
+ <&cpu2_intc 11>, <&cpu3_intc 11>,
+ <&cpu4_intc 11>, <&cpu5_intc 11>,
+ <&cpu6_intc 11>, <&cpu7_intc 11>;
+ msi-controller;
+ riscv,guest-index-bits = <6>;
+ riscv,hart-index-bits = <4>;
+ riscv,num-guest-ids = <511>;
+ riscv,num-ids = <511>;
+
+ status = "disabled";
+ };
+
+ maplic: interrupt-controller@f1800000 {
+ compatible = "spacemit,k3-aplic", "riscv,aplic";
+ reg = <0x0 0xf1800000 0x0 0x4000>;
+ #interrupt-cells = <2>;
+ interrupt-controller;
+ msi-parent = <&mimsic>;
+ riscv,children = <&saplic>;
+ riscv,delegate = <&saplic 1 512>;
+ riscv,num-sources = <512>;
+
+ status = "disabled";
+ };
+ };
+};
--
2.43.0On Sat, Jan 10, 2026 at 01:18:22PM +0800, Guodong Xu wrote:
> SpacemiT K3 is equipped with 8 X100 cores, which are RVA23 compliant.
> Add nodes of uarts, timer and interrupt-controllers.
>
> Signed-off-by: Guodong Xu <guodong@riscstar.com>
> ---
> v4: Fix missing blank space after commas in compatible string.
> Add m-mode imsic and aplic node.
> Reorder properties in simsic, saplic, mimsic, and maplic nodes
> to match DTS coding style.
> v3: Remove "supm" from the riscv,isa-extensions list.
> v2: Remove aliases from k3.dtsi, they should be in board DTS.
> Updated riscv,isa-extensions with new extensions from the extensions.yaml.
> ---
> arch/riscv/boot/dts/spacemit/k3.dtsi | 590 +++++++++++++++++++++++++++++++++++
> 1 file changed, 590 insertions(+)
>
> diff --git a/arch/riscv/boot/dts/spacemit/k3.dtsi b/arch/riscv/boot/dts/spacemit/k3.dtsi
> new file mode 100644
> index 000000000000..a815f85cf5a6
> --- /dev/null
> +++ b/arch/riscv/boot/dts/spacemit/k3.dtsi
> @@ -0,0 +1,590 @@
> +// SPDX-License-Identifier: (GPL-2.0 OR MIT)
> +/*
> + * Copyright (c) 2025 SpacemiT (Hangzhou) Technology Co. Ltd
> + * Copyright (c) 2025 Guodong Xu <guodong@riscstar.com>
> + */
> +
> +#include <dt-bindings/interrupt-controller/irq.h>
> +
> +/dts-v1/;
> +
> +/ {
> + #address-cells = <2>;
> + #size-cells = <2>;
> + model = "SpacemiT K3";
> + compatible = "spacemit,k3";
> +
> + cpus: cpus {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + timebase-frequency = <24000000>;
> +
> + cpu_0: cpu@0 {
> + compatible = "spacemit,x100", "riscv";
> + device_type = "cpu";
> + reg = <0>;
> + riscv,isa-base = "rv64i";
> + riscv,isa-extensions = "i", "m", "a", "f", "d", "c", "b", "v", "h",
> + "sha", "shcounterenw", "shgatpa", "shtvala",
> + "shvsatpa", "shvstvala", "shvstvecd", "smaia",
> + "smstateen", "ssaia", "ssccptr", "sscofpmf",
> + "sscounterenw", "ssnpm", "ssstateen", "sstc",
> + "sstvala", "sstvecd", "ssu64xl", "svade",
> + "svinval", "svnapot", "svpbmt", "za64rs",
> + "zawrs", "zba", "zbb", "zbc", "zbs", "zca",
> + "zcb", "zcd", "zcmop", "zfa", "zfbfmin",
> + "zfh", "zfhmin", "zicbom", "zicbop", "zicboz",
> + "ziccamoa", "ziccif", "zicclsm", "zicntr",
> + "zicond", "zicsr", "zifencei", "zihintntl",
> + "zihintpause", "zihpm", "zimop", "zkt", "zvbb",
> + "zvbc", "zvfbfmin", "zvfbfwma", "zvfh",
> + "zvfhmin", "zvkb", "zvkg", "zvkn", "zvknc",
> + "zvkned", "zvkng", "zvknha", "zvknhb", "zvks",
> + "zvksc", "zvksed", "zvksg", "zvksh", "zvkt";
> + riscv,cbom-block-size = <64>;
> + riscv,cbop-block-size = <64>;
> + riscv,cboz-block-size = <64>;
> + i-cache-block-size = <64>;
> + i-cache-size = <65536>;
> + i-cache-sets = <256>;
> + d-cache-block-size = <64>;
> + d-cache-size = <65536>;
> + d-cache-sets = <256>;
> + next-level-cache = <&l2_cache0>;
> + mmu-type = "riscv,sv39";
I think this should be riscv,sv48? IIRC K3 supports it.
Regards,
Inochi
> +
> + cpu0_intc: interrupt-controller {
> + compatible = "riscv,cpu-intc";
> + #interrupt-cells = <1>;
> + interrupt-controller;
> + };
> + };
> +
> + cpu_1: cpu@1 {
> + compatible = "spacemit,x100", "riscv";
> + device_type = "cpu";
> + reg = <1>;
> + riscv,isa-base = "rv64i";
> + riscv,isa-extensions = "i", "m", "a", "f", "d", "c", "b", "v", "h",
> + "sha", "shcounterenw", "shgatpa", "shtvala",
> + "shvsatpa", "shvstvala", "shvstvecd", "smaia",
> + "smstateen", "ssaia", "ssccptr", "sscofpmf",
> + "sscounterenw", "ssnpm", "ssstateen", "sstc",
> + "sstvala", "sstvecd", "ssu64xl", "svade",
> + "svinval", "svnapot", "svpbmt", "za64rs",
> + "zawrs", "zba", "zbb", "zbc", "zbs", "zca",
> + "zcb", "zcd", "zcmop", "zfa", "zfbfmin",
> + "zfh", "zfhmin", "zicbom", "zicbop", "zicboz",
> + "ziccamoa", "ziccif", "zicclsm", "zicntr",
> + "zicond", "zicsr", "zifencei", "zihintntl",
> + "zihintpause", "zihpm", "zimop", "zkt", "zvbb",
> + "zvbc", "zvfbfmin", "zvfbfwma", "zvfh",
> + "zvfhmin", "zvkb", "zvkg", "zvkn", "zvknc",
> + "zvkned", "zvkng", "zvknha", "zvknhb", "zvks",
> + "zvksc", "zvksed", "zvksg", "zvksh", "zvkt";
> + riscv,cbom-block-size = <64>;
> + riscv,cbop-block-size = <64>;
> + riscv,cboz-block-size = <64>;
> + i-cache-block-size = <64>;
> + i-cache-size = <65536>;
> + i-cache-sets = <256>;
> + d-cache-block-size = <64>;
> + d-cache-size = <65536>;
> + d-cache-sets = <256>;
> + next-level-cache = <&l2_cache0>;
> + mmu-type = "riscv,sv39";
> +
> + cpu1_intc: interrupt-controller {
> + compatible = "riscv,cpu-intc";
> + #interrupt-cells = <1>;
> + interrupt-controller;
> + };
> + };
> +
> + cpu_2: cpu@2 {
> + compatible = "spacemit,x100", "riscv";
> + device_type = "cpu";
> + reg = <2>;
> + riscv,isa-base = "rv64i";
> + riscv,isa-extensions = "i", "m", "a", "f", "d", "c", "b", "v", "h",
> + "sha", "shcounterenw", "shgatpa", "shtvala",
> + "shvsatpa", "shvstvala", "shvstvecd", "smaia",
> + "smstateen", "ssaia", "ssccptr", "sscofpmf",
> + "sscounterenw", "ssnpm", "ssstateen", "sstc",
> + "sstvala", "sstvecd", "ssu64xl", "svade",
> + "svinval", "svnapot", "svpbmt", "za64rs",
> + "zawrs", "zba", "zbb", "zbc", "zbs", "zca",
> + "zcb", "zcd", "zcmop", "zfa", "zfbfmin",
> + "zfh", "zfhmin", "zicbom", "zicbop", "zicboz",
> + "ziccamoa", "ziccif", "zicclsm", "zicntr",
> + "zicond", "zicsr", "zifencei", "zihintntl",
> + "zihintpause", "zihpm", "zimop", "zkt", "zvbb",
> + "zvbc", "zvfbfmin", "zvfbfwma", "zvfh",
> + "zvfhmin", "zvkb", "zvkg", "zvkn", "zvknc",
> + "zvkned", "zvkng", "zvknha", "zvknhb", "zvks",
> + "zvksc", "zvksed", "zvksg", "zvksh", "zvkt";
> + riscv,cbom-block-size = <64>;
> + riscv,cbop-block-size = <64>;
> + riscv,cboz-block-size = <64>;
> + i-cache-block-size = <64>;
> + i-cache-size = <65536>;
> + i-cache-sets = <256>;
> + d-cache-block-size = <64>;
> + d-cache-size = <65536>;
> + d-cache-sets = <256>;
> + next-level-cache = <&l2_cache0>;
> + mmu-type = "riscv,sv39";
> +
> + cpu2_intc: interrupt-controller {
> + compatible = "riscv,cpu-intc";
> + #interrupt-cells = <1>;
> + interrupt-controller;
> + };
> + };
> +
> + cpu_3: cpu@3 {
> + compatible = "spacemit,x100", "riscv";
> + device_type = "cpu";
> + reg = <3>;
> + riscv,isa-base = "rv64i";
> + riscv,isa-extensions = "i", "m", "a", "f", "d", "c", "b", "v", "h",
> + "sha", "shcounterenw", "shgatpa", "shtvala",
> + "shvsatpa", "shvstvala", "shvstvecd", "smaia",
> + "smstateen", "ssaia", "ssccptr", "sscofpmf",
> + "sscounterenw", "ssnpm", "ssstateen", "sstc",
> + "sstvala", "sstvecd", "ssu64xl", "svade",
> + "svinval", "svnapot", "svpbmt", "za64rs",
> + "zawrs", "zba", "zbb", "zbc", "zbs", "zca",
> + "zcb", "zcd", "zcmop", "zfa", "zfbfmin",
> + "zfh", "zfhmin", "zicbom", "zicbop", "zicboz",
> + "ziccamoa", "ziccif", "zicclsm", "zicntr",
> + "zicond", "zicsr", "zifencei", "zihintntl",
> + "zihintpause", "zihpm", "zimop", "zkt", "zvbb",
> + "zvbc", "zvfbfmin", "zvfbfwma", "zvfh",
> + "zvfhmin", "zvkb", "zvkg", "zvkn", "zvknc",
> + "zvkned", "zvkng", "zvknha", "zvknhb", "zvks",
> + "zvksc", "zvksed", "zvksg", "zvksh", "zvkt";
> + riscv,cbom-block-size = <64>;
> + riscv,cbop-block-size = <64>;
> + riscv,cboz-block-size = <64>;
> + i-cache-block-size = <64>;
> + i-cache-size = <65536>;
> + i-cache-sets = <256>;
> + d-cache-block-size = <64>;
> + d-cache-size = <65536>;
> + d-cache-sets = <256>;
> + next-level-cache = <&l2_cache0>;
> + mmu-type = "riscv,sv39";
> +
> + cpu3_intc: interrupt-controller {
> + compatible = "riscv,cpu-intc";
> + #interrupt-cells = <1>;
> + interrupt-controller;
> + };
> + };
> +
> + cpu_4: cpu@4 {
> + compatible = "spacemit,x100", "riscv";
> + device_type = "cpu";
> + reg = <4>;
> + riscv,isa-base = "rv64i";
> + riscv,isa-extensions = "i", "m", "a", "f", "d", "c", "b", "v", "h",
> + "sha", "shcounterenw", "shgatpa", "shtvala",
> + "shvsatpa", "shvstvala", "shvstvecd", "smaia",
> + "smstateen", "ssaia", "ssccptr", "sscofpmf",
> + "sscounterenw", "ssnpm", "ssstateen", "sstc",
> + "sstvala", "sstvecd", "ssu64xl", "svade",
> + "svinval", "svnapot", "svpbmt", "za64rs",
> + "zawrs", "zba", "zbb", "zbc", "zbs", "zca",
> + "zcb", "zcd", "zcmop", "zfa", "zfbfmin",
> + "zfh", "zfhmin", "zicbom", "zicbop", "zicboz",
> + "ziccamoa", "ziccif", "zicclsm", "zicntr",
> + "zicond", "zicsr", "zifencei", "zihintntl",
> + "zihintpause", "zihpm", "zimop", "zkt", "zvbb",
> + "zvbc", "zvfbfmin", "zvfbfwma", "zvfh",
> + "zvfhmin", "zvkb", "zvkg", "zvkn", "zvknc",
> + "zvkned", "zvkng", "zvknha", "zvknhb", "zvks",
> + "zvksc", "zvksed", "zvksg", "zvksh", "zvkt";
> + riscv,cbom-block-size = <64>;
> + riscv,cbop-block-size = <64>;
> + riscv,cboz-block-size = <64>;
> + i-cache-block-size = <64>;
> + i-cache-size = <65536>;
> + i-cache-sets = <256>;
> + d-cache-block-size = <64>;
> + d-cache-size = <65536>;
> + d-cache-sets = <256>;
> + next-level-cache = <&l2_cache1>;
> + mmu-type = "riscv,sv39";
> +
> + cpu4_intc: interrupt-controller {
> + compatible = "riscv,cpu-intc";
> + #interrupt-cells = <1>;
> + interrupt-controller;
> + };
> + };
> +
> + cpu_5: cpu@5 {
> + compatible = "spacemit,x100", "riscv";
> + device_type = "cpu";
> + reg = <5>;
> + riscv,isa-base = "rv64i";
> + riscv,isa-extensions = "i", "m", "a", "f", "d", "c", "b", "v", "h",
> + "sha", "shcounterenw", "shgatpa", "shtvala",
> + "shvsatpa", "shvstvala", "shvstvecd", "smaia",
> + "smstateen", "ssaia", "ssccptr", "sscofpmf",
> + "sscounterenw", "ssnpm", "ssstateen", "sstc",
> + "sstvala", "sstvecd", "ssu64xl", "svade",
> + "svinval", "svnapot", "svpbmt", "za64rs",
> + "zawrs", "zba", "zbb", "zbc", "zbs", "zca",
> + "zcb", "zcd", "zcmop", "zfa", "zfbfmin",
> + "zfh", "zfhmin", "zicbom", "zicbop", "zicboz",
> + "ziccamoa", "ziccif", "zicclsm", "zicntr",
> + "zicond", "zicsr", "zifencei", "zihintntl",
> + "zihintpause", "zihpm", "zimop", "zkt", "zvbb",
> + "zvbc", "zvfbfmin", "zvfbfwma", "zvfh",
> + "zvfhmin", "zvkb", "zvkg", "zvkn", "zvknc",
> + "zvkned", "zvkng", "zvknha", "zvknhb", "zvks",
> + "zvksc", "zvksed", "zvksg", "zvksh", "zvkt";
> + riscv,cbom-block-size = <64>;
> + riscv,cbop-block-size = <64>;
> + riscv,cboz-block-size = <64>;
> + i-cache-block-size = <64>;
> + i-cache-size = <65536>;
> + i-cache-sets = <256>;
> + d-cache-block-size = <64>;
> + d-cache-size = <65536>;
> + d-cache-sets = <256>;
> + next-level-cache = <&l2_cache1>;
> + mmu-type = "riscv,sv39";
> +
> + cpu5_intc: interrupt-controller {
> + compatible = "riscv,cpu-intc";
> + #interrupt-cells = <1>;
> + interrupt-controller;
> + };
> + };
> +
> + cpu_6: cpu@6 {
> + compatible = "spacemit,x100", "riscv";
> + device_type = "cpu";
> + reg = <6>;
> + riscv,isa-base = "rv64i";
> + riscv,isa-extensions = "i", "m", "a", "f", "d", "c", "b", "v", "h",
> + "sha", "shcounterenw", "shgatpa", "shtvala",
> + "shvsatpa", "shvstvala", "shvstvecd", "smaia",
> + "smstateen", "ssaia", "ssccptr", "sscofpmf",
> + "sscounterenw", "ssnpm", "ssstateen", "sstc",
> + "sstvala", "sstvecd", "ssu64xl", "svade",
> + "svinval", "svnapot", "svpbmt", "za64rs",
> + "zawrs", "zba", "zbb", "zbc", "zbs", "zca",
> + "zcb", "zcd", "zcmop", "zfa", "zfbfmin",
> + "zfh", "zfhmin", "zicbom", "zicbop", "zicboz",
> + "ziccamoa", "ziccif", "zicclsm", "zicntr",
> + "zicond", "zicsr", "zifencei", "zihintntl",
> + "zihintpause", "zihpm", "zimop", "zkt", "zvbb",
> + "zvbc", "zvfbfmin", "zvfbfwma", "zvfh",
> + "zvfhmin", "zvkb", "zvkg", "zvkn", "zvknc",
> + "zvkned", "zvkng", "zvknha", "zvknhb", "zvks",
> + "zvksc", "zvksed", "zvksg", "zvksh", "zvkt";
> + riscv,cbom-block-size = <64>;
> + riscv,cbop-block-size = <64>;
> + riscv,cboz-block-size = <64>;
> + i-cache-block-size = <64>;
> + i-cache-size = <65536>;
> + i-cache-sets = <256>;
> + d-cache-block-size = <64>;
> + d-cache-size = <65536>;
> + d-cache-sets = <256>;
> + next-level-cache = <&l2_cache1>;
> + mmu-type = "riscv,sv39";
> +
> + cpu6_intc: interrupt-controller {
> + compatible = "riscv,cpu-intc";
> + #interrupt-cells = <1>;
> + interrupt-controller;
> + };
> + };
> +
> + cpu_7: cpu@7 {
> + compatible = "spacemit,x100", "riscv";
> + device_type = "cpu";
> + reg = <7>;
> + riscv,isa-base = "rv64i";
> + riscv,isa-extensions = "i", "m", "a", "f", "d", "c", "b", "v", "h",
> + "sha", "shcounterenw", "shgatpa", "shtvala",
> + "shvsatpa", "shvstvala", "shvstvecd", "smaia",
> + "smstateen", "ssaia", "ssccptr", "sscofpmf",
> + "sscounterenw", "ssnpm", "ssstateen", "sstc",
> + "sstvala", "sstvecd", "ssu64xl", "svade",
> + "svinval", "svnapot", "svpbmt", "za64rs",
> + "zawrs", "zba", "zbb", "zbc", "zbs", "zca",
> + "zcb", "zcd", "zcmop", "zfa", "zfbfmin",
> + "zfh", "zfhmin", "zicbom", "zicbop", "zicboz",
> + "ziccamoa", "ziccif", "zicclsm", "zicntr",
> + "zicond", "zicsr", "zifencei", "zihintntl",
> + "zihintpause", "zihpm", "zimop", "zkt", "zvbb",
> + "zvbc", "zvfbfmin", "zvfbfwma", "zvfh",
> + "zvfhmin", "zvkb", "zvkg", "zvkn", "zvknc",
> + "zvkned", "zvkng", "zvknha", "zvknhb", "zvks",
> + "zvksc", "zvksed", "zvksg", "zvksh", "zvkt";
> + riscv,cbom-block-size = <64>;
> + riscv,cbop-block-size = <64>;
> + riscv,cboz-block-size = <64>;
> + i-cache-block-size = <64>;
> + i-cache-size = <65536>;
> + i-cache-sets = <256>;
> + d-cache-block-size = <64>;
> + d-cache-size = <65536>;
> + d-cache-sets = <256>;
> + next-level-cache = <&l2_cache1>;
> + mmu-type = "riscv,sv39";
> +
> + cpu7_intc: interrupt-controller {
> + compatible = "riscv,cpu-intc";
> + #interrupt-cells = <1>;
> + interrupt-controller;
> + };
> + };
> +
> + l2_cache0: cache-controller-0 {
> + compatible = "cache";
> + cache-block-size = <64>;
> + cache-level = <2>;
> + cache-size = <4194304>;
> + cache-sets = <4096>;
> + cache-unified;
> + };
> +
> + l2_cache1: cache-controller-1 {
> + compatible = "cache";
> + cache-block-size = <64>;
> + cache-level = <2>;
> + cache-size = <4194304>;
> + cache-sets = <4096>;
> + cache-unified;
> + };
> +
> + cpu-map {
> + cluster0 {
> + core0 {
> + cpu = <&cpu_0>;
> + };
> + core1 {
> + cpu = <&cpu_1>;
> + };
> + core2 {
> + cpu = <&cpu_2>;
> + };
> + core3 {
> + cpu = <&cpu_3>;
> + };
> + };
> +
> + cluster1 {
> + core0 {
> + cpu = <&cpu_4>;
> + };
> + core1 {
> + cpu = <&cpu_5>;
> + };
> + core2 {
> + cpu = <&cpu_6>;
> + };
> + core3 {
> + cpu = <&cpu_7>;
> + };
> + };
> + };
> + };
> +
> + soc: soc {
> + compatible = "simple-bus";
> + interrupt-parent = <&saplic>;
> + #address-cells = <2>;
> + #size-cells = <2>;
> + dma-noncoherent;
> + ranges;
> +
> + uart0: serial@d4017000 {
> + compatible = "spacemit,k3-uart", "intel,xscale-uart";
> + reg = <0x0 0xd4017000 0x0 0x100>;
> + reg-shift = <2>;
> + reg-io-width = <4>;
> + clock-frequency = <14700000>;
> + interrupts = <42 IRQ_TYPE_LEVEL_HIGH>;
> +
> + status = "disabled";
> + };
> +
> + uart2: serial@d4017100 {
> + compatible = "spacemit,k3-uart", "intel,xscale-uart";
> + reg = <0x0 0xd4017100 0x0 0x100>;
> + reg-shift = <2>;
> + reg-io-width = <4>;
> + clock-frequency = <14700000>;
> + interrupts = <44 IRQ_TYPE_LEVEL_HIGH>;
> +
> + status = "disabled";
> + };
> +
> + uart3: serial@d4017200 {
> + compatible = "spacemit,k3-uart", "intel,xscale-uart";
> + reg = <0x0 0xd4017200 0x0 0x100>;
> + reg-shift = <2>;
> + reg-io-width = <4>;
> + clock-frequency = <14700000>;
> + interrupts = <45 IRQ_TYPE_LEVEL_HIGH>;
> +
> + status = "disabled";
> + };
> +
> + uart4: serial@d4017300 {
> + compatible = "spacemit,k3-uart", "intel,xscale-uart";
> + reg = <0x0 0xd4017300 0x0 0x100>;
> + reg-shift = <2>;
> + reg-io-width = <4>;
> + clock-frequency = <14700000>;
> + interrupts = <46 IRQ_TYPE_LEVEL_HIGH>;
> +
> + status = "disabled";
> + };
> +
> + uart5: serial@d4017400 {
> + compatible = "spacemit,k3-uart", "intel,xscale-uart";
> + reg = <0x0 0xd4017400 0x0 0x100>;
> + reg-shift = <2>;
> + reg-io-width = <4>;
> + clock-frequency = <14700000>;
> + interrupts = <47 IRQ_TYPE_LEVEL_HIGH>;
> +
> + status = "disabled";
> + };
> +
> + uart6: serial@d4017500 {
> + compatible = "spacemit,k3-uart", "intel,xscale-uart";
> + reg = <0x0 0xd4017500 0x0 0x100>;
> + reg-shift = <2>;
> + reg-io-width = <4>;
> + clock-frequency = <14700000>;
> + interrupts = <48 IRQ_TYPE_LEVEL_HIGH>;
> +
> + status = "disabled";
> + };
> +
> + uart7: serial@d4017600 {
> + compatible = "spacemit,k3-uart", "intel,xscale-uart";
> + reg = <0x0 0xd4017600 0x0 0x100>;
> + reg-shift = <2>;
> + reg-io-width = <4>;
> + clock-frequency = <14700000>;
> + interrupts = <49 IRQ_TYPE_LEVEL_HIGH>;
> +
> + status = "disabled";
> + };
> +
> + uart8: serial@d4017700 {
> + compatible = "spacemit,k3-uart", "intel,xscale-uart";
> + reg = <0x0 0xd4017700 0x0 0x100>;
> + reg-shift = <2>;
> + reg-io-width = <4>;
> + clock-frequency = <14700000>;
> + interrupts = <50 IRQ_TYPE_LEVEL_HIGH>;
> +
> + status = "disabled";
> + };
> +
> + uart9: serial@d4017800 {
> + compatible = "spacemit,k3-uart", "intel,xscale-uart";
> + reg = <0x0 0xd4017800 0x0 0x100>;
> + reg-shift = <2>;
> + reg-io-width = <4>;
> + clock-frequency = <14700000>;
> + interrupts = <51 IRQ_TYPE_LEVEL_HIGH>;
> +
> + status = "disabled";
> + };
> +
> + uart10: serial@d401f000 {
> + compatible = "spacemit,k3-uart", "intel,xscale-uart";
> + reg = <0x0 0xd401f000 0x0 0x100>;
> + reg-shift = <2>;
> + reg-io-width = <4>;
> + clock-frequency = <14700000>;
> + interrupts = <281 IRQ_TYPE_LEVEL_HIGH>;
> +
> + status = "disabled";
> + };
> +
> + simsic: interrupt-controller@e0400000 {
> + compatible = "spacemit,k3-imsics", "riscv,imsics";
> + reg = <0x0 0xe0400000 0x0 0x200000>;
> + #interrupt-cells = <0>;
> + #msi-cells = <0>;
> + interrupt-controller;
> + interrupts-extended = <&cpu0_intc 9>, <&cpu1_intc 9>,
> + <&cpu2_intc 9>, <&cpu3_intc 9>,
> + <&cpu4_intc 9>, <&cpu5_intc 9>,
> + <&cpu6_intc 9>, <&cpu7_intc 9>;
> + msi-controller;
> + riscv,guest-index-bits = <6>;
> + riscv,hart-index-bits = <4>;
> + riscv,num-guest-ids = <511>;
> + riscv,num-ids = <511>;
> + };
> +
> + saplic: interrupt-controller@e0804000 {
> + compatible = "spacemit,k3-aplic", "riscv,aplic";
> + reg = <0x0 0xe0804000 0x0 0x4000>;
> + #interrupt-cells = <2>;
> + interrupt-controller;
> + msi-parent = <&simsic>;
> + riscv,num-sources = <512>;
> + };
> +
> + clint: timer@e081c000 {
> + compatible = "spacemit,k3-clint", "sifive,clint0";
> + reg = <0x0 0xe081c000 0x0 0x4000>;
> + interrupts-extended = <&cpu0_intc 3>, <&cpu0_intc 7>,
> + <&cpu1_intc 3>, <&cpu1_intc 7>,
> + <&cpu2_intc 3>, <&cpu2_intc 7>,
> + <&cpu3_intc 3>, <&cpu3_intc 7>,
> + <&cpu4_intc 3>, <&cpu4_intc 7>,
> + <&cpu5_intc 3>, <&cpu5_intc 7>,
> + <&cpu6_intc 3>, <&cpu6_intc 7>,
> + <&cpu7_intc 3>, <&cpu7_intc 7>;
> + };
> +
> + mimsic: interrupt-controller@f1000000 {
> + compatible = "spacemit,k3-imsics", "riscv,imsics";
> + reg = <0x0 0xf1000000 0x0 0x10000>;
> + #interrupt-cells = <0>;
> + #msi-cells = <0>;
> + interrupt-controller;
> + interrupts-extended = <&cpu0_intc 11>, <&cpu1_intc 11>,
> + <&cpu2_intc 11>, <&cpu3_intc 11>,
> + <&cpu4_intc 11>, <&cpu5_intc 11>,
> + <&cpu6_intc 11>, <&cpu7_intc 11>;
> + msi-controller;
> + riscv,guest-index-bits = <6>;
> + riscv,hart-index-bits = <4>;
> + riscv,num-guest-ids = <511>;
> + riscv,num-ids = <511>;
> +
> + status = "disabled";
> + };
> +
> + maplic: interrupt-controller@f1800000 {
> + compatible = "spacemit,k3-aplic", "riscv,aplic";
> + reg = <0x0 0xf1800000 0x0 0x4000>;
> + #interrupt-cells = <2>;
> + interrupt-controller;
> + msi-parent = <&mimsic>;
> + riscv,children = <&saplic>;
> + riscv,delegate = <&saplic 1 512>;
> + riscv,num-sources = <512>;
> +
> + status = "disabled";
> + };
> + };
> +};
>
> --
> 2.43.0
>
>
Hi Guodong, On 18:00 Sat 10 Jan , Inochi Amaoto wrote: > On Sat, Jan 10, 2026 at 01:18:22PM +0800, Guodong Xu wrote: > > SpacemiT K3 is equipped with 8 X100 cores, which are RVA23 compliant. > > Add nodes of uarts, timer and interrupt-controllers. > > > > Signed-off-by: Guodong Xu <guodong@riscstar.com> > > --- > > v4: Fix missing blank space after commas in compatible string. > > Add m-mode imsic and aplic node. > > Reorder properties in simsic, saplic, mimsic, and maplic nodes > > to match DTS coding style. > > v3: Remove "supm" from the riscv,isa-extensions list. > > v2: Remove aliases from k3.dtsi, they should be in board DTS. > > Updated riscv,isa-extensions with new extensions from the extensions.yaml. > > --- > > arch/riscv/boot/dts/spacemit/k3.dtsi | 590 +++++++++++++++++++++++++++++++++++ > > 1 file changed, 590 insertions(+) > > > > diff --git a/arch/riscv/boot/dts/spacemit/k3.dtsi b/arch/riscv/boot/dts/spacemit/k3.dtsi > > new file mode 100644 > > index 000000000000..a815f85cf5a6 > > --- /dev/null > > +++ b/arch/riscv/boot/dts/spacemit/k3.dtsi > > @@ -0,0 +1,590 @@ ... > > + d-cache-sets = <256>; > > + next-level-cache = <&l2_cache0>; > > > + mmu-type = "riscv,sv39"; > > I think this should be riscv,sv48? IIRC K3 supports it. > I would second the idea here, if the underlying hardware support sv48, there is no reason we should limit it in DTS, DT should reflect the actual hardware.. if user still prefer to use sv39 for simplicity, a "no4lvl" command line argument can be passed.. see arch/riscv/mm/init.c +860 -> set_satp_mode() -- Yixun Lan (dlan)
Hi, Yixun and Inochi On Sat, Jan 10, 2026 at 7:05 PM Yixun Lan <dlan@gentoo.org> wrote: > > Hi Guodong, > > On 18:00 Sat 10 Jan , Inochi Amaoto wrote: > > On Sat, Jan 10, 2026 at 01:18:22PM +0800, Guodong Xu wrote: > > > SpacemiT K3 is equipped with 8 X100 cores, which are RVA23 compliant. > > > Add nodes of uarts, timer and interrupt-controllers. > > > > > > Signed-off-by: Guodong Xu <guodong@riscstar.com> > > > --- > > > v4: Fix missing blank space after commas in compatible string. > > > Add m-mode imsic and aplic node. > > > Reorder properties in simsic, saplic, mimsic, and maplic nodes > > > to match DTS coding style. > > > v3: Remove "supm" from the riscv,isa-extensions list. > > > v2: Remove aliases from k3.dtsi, they should be in board DTS. > > > Updated riscv,isa-extensions with new extensions from the extensions.yaml. > > > --- > > > arch/riscv/boot/dts/spacemit/k3.dtsi | 590 +++++++++++++++++++++++++++++++++++ > > > 1 file changed, 590 insertions(+) > > > > > > diff --git a/arch/riscv/boot/dts/spacemit/k3.dtsi b/arch/riscv/boot/dts/spacemit/k3.dtsi > > > new file mode 100644 > > > index 000000000000..a815f85cf5a6 > > > --- /dev/null > > > +++ b/arch/riscv/boot/dts/spacemit/k3.dtsi > > > @@ -0,0 +1,590 @@ > ... > > > + d-cache-sets = <256>; > > > + next-level-cache = <&l2_cache0>; > > > > > + mmu-type = "riscv,sv39"; > > > > I think this should be riscv,sv48? IIRC K3 supports it. You are right that the underlying X100 IP core is capable of supporting both SV39 and SV48. However, not K3. > > > I would second the idea here, if the underlying hardware support sv48, > there is no reason we should limit it in DTS, DT should reflect the actual > hardware.. if user still prefer to use sv39 for simplicity, a "no4lvl" > command line argument can be passed.. see > arch/riscv/mm/init.c +860 -> set_satp_mode() I have double-checked with SpacemiT, according to SpacemiT, while the X100 core itself supports both SV39 and SV48, when it was integrated into the K3 SoC, it was specifically configured to support only SV39. In this case, the K3 SoC's MMU is configured for SV39 only, so mmu-type = "riscv,sv39" is the correct representation. Best regards, Guodong Xu > > -- > Yixun Lan (dlan)
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