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Message-Id: <20240703-k1-01-basic-dt-v3-8-12f73b47461e@gentoo.org>
Date: Wed, 03 Jul 2024 14:55:11 +0000
From: Yixun Lan <dlan@...too.org>
To: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>, Conor Dooley <conor@...nel.org>,
Paul Walmsley <paul.walmsley@...ive.com>,
Palmer Dabbelt <palmer@...belt.com>, Albert Ou <aou@...s.berkeley.edu>,
Daniel Lezcano <daniel.lezcano@...aro.org>,
Thomas Gleixner <tglx@...utronix.de>,
Samuel Holland <samuel.holland@...ive.com>,
Anup Patel <anup@...infault.org>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Jiri Slaby <jirislaby@...nel.org>, Lubomir Rintel <lkundrak@...sk>
Cc: devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-riscv@...ts.infradead.org, linux-serial@...r.kernel.org,
Inochi Amaoto <inochiama@...look.com>, Icenowy Zheng <uwu@...nowy.me>,
Meng Zhang <zhangmeng.kevin@...cemit.com>, Yangyu Chen <cyy@...self.name>,
Yixun Lan <dlan@...too.org>
Subject: [PATCH v3 08/11] riscv: dts: add initial SpacemiT K1 SoC device
tree
From: Yangyu Chen <cyy@...self.name>
Banana Pi BPI-F3 motherboard is powered by SpacemiT K1[1].
Key features:
- 4 cores per cluster, 2 clusters on chip
- UART IP is Intel XScale UART
Some key considerations:
- ISA string is inferred from vendor documentation[2]
- Cluster topology is inferred from datasheet[1] and L2 in vendor dts[3]
- No coherent DMA on this board
Inferred by taking vendor ethernet and MMC drivers to the mainline
kernel. Without dma-noncoherent in soc node, the driver fails.
- No cache nodes now
The parameters from vendor dts are likely to be wrong. It has 512
sets for a 32KiB L1 Cache. In this case, each set is 64B in size.
When the size of the cache line is 64B, it is a directly mapped
cache rather than a set-associative cache, the latter is commonly
used. Thus, I didn't use the parameters from vendor dts.
Currently only support booting into console with only uart, other
features will be added soon later.
Link: https://docs.banana-pi.org/en/BPI-F3/SpacemiT_K1_datasheet [1]
Link: https://developer.spacemit.com/#/documentation?token=BWbGwbx7liGW21kq9lucSA6Vnpb [2]
Link: https://gitee.com/bianbu-linux/linux-6.1/blob/bl-v1.0.y/arch/riscv/boot/dts/spacemit/k1-x.dtsi [3]
Signed-off-by: Yangyu Chen <cyy@...self.name>
Signed-off-by: Yixun Lan <dlan@...too.org>
---
arch/riscv/boot/dts/spacemit/k1.dtsi | 376 +++++++++++++++++++++++++++++++++++
1 file changed, 376 insertions(+)
diff --git a/arch/riscv/boot/dts/spacemit/k1.dtsi b/arch/riscv/boot/dts/spacemit/k1.dtsi
new file mode 100644
index 0000000000000..a076e35855a2e
--- /dev/null
+++ b/arch/riscv/boot/dts/spacemit/k1.dtsi
@@ -0,0 +1,376 @@
+// SPDX-License-Identifier: GPL-2.0 OR MIT
+/*
+ * Copyright (C) 2024 Yangyu Chen <cyy@...self.name>
+ */
+
+/dts-v1/;
+/ {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ model = "SpacemiT K1";
+ compatible = "spacemit,k1";
+
+ aliases {
+ serial0 = &uart0;
+ serial1 = &uart2;
+ serial2 = &uart3;
+ serial3 = &uart4;
+ serial4 = &uart5;
+ serial5 = &uart6;
+ serial6 = &uart7;
+ serial7 = &uart8;
+ serial8 = &uart9;
+ };
+
+ cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ timebase-frequency = <24000000>;
+
+ 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>;
+ };
+ };
+ };
+
+ cpu_0: cpu@0 {
+ compatible = "spacemit,x60", "riscv";
+ device_type = "cpu";
+ reg = <0>;
+ riscv,isa = "rv64imafdcv_zicbom_zicbop_zicboz_zicntr_zicond_zicsr_zifencei_zihintpause_zihpm_zfh_zba_zbb_zbc_zbs_zkt_zvfh_zvkt_sscofpmf_sstc_svinval_svnapot_svpbmt";
+ riscv,isa-base = "rv64i";
+ riscv,isa-extensions = "i", "m", "a", "f", "d", "c", "v", "zicbom",
+ "zicbop", "zicboz", "zicntr", "zicond", "zicsr",
+ "zifencei", "zihintpause", "zihpm", "zfh", "zba",
+ "zbb", "zbc", "zbs", "zkt", "zvfh", "zvkt",
+ "sscofpmf", "sstc", "svinval", "svnapot", "svpbmt";
+ riscv,cbom-block-size = <64>;
+ riscv,cbop-block-size = <64>;
+ riscv,cboz-block-size = <64>;
+ mmu-type = "riscv,sv39";
+
+ cpu0_intc: interrupt-controller {
+ compatible = "riscv,cpu-intc";
+ interrupt-controller;
+ #interrupt-cells = <1>;
+ };
+ };
+
+ cpu_1: cpu@1 {
+ compatible = "spacemit,x60", "riscv";
+ device_type = "cpu";
+ reg = <1>;
+ riscv,isa = "rv64imafdcv_zicbom_zicbop_zicboz_zicntr_zicond_zicsr_zifencei_zihintpause_zihpm_zfh_zba_zbb_zbc_zbs_zkt_zvfh_zvkt_sscofpmf_sstc_svinval_svnapot_svpbmt";
+ riscv,isa-base = "rv64i";
+ riscv,isa-extensions = "i", "m", "a", "f", "d", "c", "v", "zicbom",
+ "zicbop", "zicboz", "zicntr", "zicond", "zicsr",
+ "zifencei", "zihintpause", "zihpm", "zfh", "zba",
+ "zbb", "zbc", "zbs", "zkt", "zvfh", "zvkt",
+ "sscofpmf", "sstc", "svinval", "svnapot", "svpbmt";
+ riscv,cbom-block-size = <64>;
+ riscv,cbop-block-size = <64>;
+ riscv,cboz-block-size = <64>;
+ mmu-type = "riscv,sv39";
+
+ cpu1_intc: interrupt-controller {
+ compatible = "riscv,cpu-intc";
+ interrupt-controller;
+ #interrupt-cells = <1>;
+ };
+ };
+
+ cpu_2: cpu@2 {
+ compatible = "spacemit,x60", "riscv";
+ device_type = "cpu";
+ reg = <2>;
+ riscv,isa = "rv64imafdcv_zicbom_zicbop_zicboz_zicntr_zicond_zicsr_zifencei_zihintpause_zihpm_zfh_zba_zbb_zbc_zbs_zkt_zvfh_zvkt_sscofpmf_sstc_svinval_svnapot_svpbmt";
+ riscv,isa-base = "rv64i";
+ riscv,isa-extensions = "i", "m", "a", "f", "d", "c", "v", "zicbom",
+ "zicbop", "zicboz", "zicntr", "zicond", "zicsr",
+ "zifencei", "zihintpause", "zihpm", "zfh", "zba",
+ "zbb", "zbc", "zbs", "zkt", "zvfh", "zvkt",
+ "sscofpmf", "sstc", "svinval", "svnapot", "svpbmt";
+ riscv,cbom-block-size = <64>;
+ riscv,cbop-block-size = <64>;
+ riscv,cboz-block-size = <64>;
+ mmu-type = "riscv,sv39";
+
+ cpu2_intc: interrupt-controller {
+ compatible = "riscv,cpu-intc";
+ interrupt-controller;
+ #interrupt-cells = <1>;
+ };
+ };
+
+ cpu_3: cpu@3 {
+ compatible = "spacemit,x60", "riscv";
+ device_type = "cpu";
+ reg = <3>;
+ riscv,isa = "rv64imafdcv_zicbom_zicbop_zicboz_zicntr_zicond_zicsr_zifencei_zihintpause_zihpm_zfh_zba_zbb_zbc_zbs_zkt_zvfh_zvkt_sscofpmf_sstc_svinval_svnapot_svpbmt";
+ riscv,isa-base = "rv64i";
+ riscv,isa-extensions = "i", "m", "a", "f", "d", "c", "v", "zicbom",
+ "zicbop", "zicboz", "zicntr", "zicond", "zicsr",
+ "zifencei", "zihintpause", "zihpm", "zfh", "zba",
+ "zbb", "zbc", "zbs", "zkt", "zvfh", "zvkt",
+ "sscofpmf", "sstc", "svinval", "svnapot", "svpbmt";
+ riscv,cbom-block-size = <64>;
+ riscv,cbop-block-size = <64>;
+ riscv,cboz-block-size = <64>;
+ mmu-type = "riscv,sv39";
+
+ cpu3_intc: interrupt-controller {
+ compatible = "riscv,cpu-intc";
+ interrupt-controller;
+ #interrupt-cells = <1>;
+ };
+ };
+
+ cpu_4: cpu@4 {
+ compatible = "spacemit,x60", "riscv";
+ device_type = "cpu";
+ reg = <4>;
+ riscv,isa = "rv64imafdcv_zicbom_zicbop_zicboz_zicntr_zicond_zicsr_zifencei_zihintpause_zihpm_zfh_zba_zbb_zbc_zbs_zkt_zvfh_zvkt_sscofpmf_sstc_svinval_svnapot_svpbmt";
+ riscv,isa-base = "rv64i";
+ riscv,isa-extensions = "i", "m", "a", "f", "d", "c", "v", "zicbom",
+ "zicbop", "zicboz", "zicntr", "zicond", "zicsr",
+ "zifencei", "zihintpause", "zihpm", "zfh", "zba",
+ "zbb", "zbc", "zbs", "zkt", "zvfh", "zvkt",
+ "sscofpmf", "sstc", "svinval", "svnapot", "svpbmt";
+ riscv,cbom-block-size = <64>;
+ riscv,cbop-block-size = <64>;
+ riscv,cboz-block-size = <64>;
+ mmu-type = "riscv,sv39";
+
+ cpu4_intc: interrupt-controller {
+ compatible = "riscv,cpu-intc";
+ interrupt-controller;
+ #interrupt-cells = <1>;
+ };
+ };
+
+ cpu_5: cpu@5 {
+ compatible = "spacemit,x60", "riscv";
+ device_type = "cpu";
+ reg = <5>;
+ riscv,isa = "rv64imafdcv_zicbom_zicbop_zicboz_zicntr_zicond_zicsr_zifencei_zihintpause_zihpm_zfh_zba_zbb_zbc_zbs_zkt_zvfh_zvkt_sscofpmf_sstc_svinval_svnapot_svpbmt";
+ riscv,isa-base = "rv64i";
+ riscv,isa-extensions = "i", "m", "a", "f", "d", "c", "v", "zicbom",
+ "zicbop", "zicboz", "zicntr", "zicond", "zicsr",
+ "zifencei", "zihintpause", "zihpm", "zfh", "zba",
+ "zbb", "zbc", "zbs", "zkt", "zvfh", "zvkt",
+ "sscofpmf", "sstc", "svinval", "svnapot", "svpbmt";
+ riscv,cbom-block-size = <64>;
+ riscv,cbop-block-size = <64>;
+ riscv,cboz-block-size = <64>;
+ mmu-type = "riscv,sv39";
+
+ cpu5_intc: interrupt-controller {
+ compatible = "riscv,cpu-intc";
+ interrupt-controller;
+ #interrupt-cells = <1>;
+ };
+ };
+
+ cpu_6: cpu@6 {
+ compatible = "spacemit,x60", "riscv";
+ device_type = "cpu";
+ reg = <6>;
+ riscv,isa = "rv64imafdcv_zicbom_zicbop_zicboz_zicntr_zicond_zicsr_zifencei_zihintpause_zihpm_zfh_zba_zbb_zbc_zbs_zkt_zvfh_zvkt_sscofpmf_sstc_svinval_svnapot_svpbmt";
+ riscv,isa-base = "rv64i";
+ riscv,isa-extensions = "i", "m", "a", "f", "d", "c", "v", "zicbom",
+ "zicbop", "zicboz", "zicntr", "zicond", "zicsr",
+ "zifencei", "zihintpause", "zihpm", "zfh", "zba",
+ "zbb", "zbc", "zbs", "zkt", "zvfh", "zvkt",
+ "sscofpmf", "sstc", "svinval", "svnapot", "svpbmt";
+ riscv,cbom-block-size = <64>;
+ riscv,cbop-block-size = <64>;
+ riscv,cboz-block-size = <64>;
+ mmu-type = "riscv,sv39";
+
+ cpu6_intc: interrupt-controller {
+ compatible = "riscv,cpu-intc";
+ interrupt-controller;
+ #interrupt-cells = <1>;
+ };
+ };
+
+ cpu_7: cpu@7 {
+ compatible = "spacemit,x60", "riscv";
+ device_type = "cpu";
+ reg = <7>;
+ riscv,isa = "rv64imafdcv_zicbom_zicbop_zicboz_zicntr_zicond_zicsr_zifencei_zihintpause_zihpm_zfh_zba_zbb_zbc_zbs_zkt_zvfh_zvkt_sscofpmf_sstc_svinval_svnapot_svpbmt";
+ riscv,isa-base = "rv64i";
+ riscv,isa-extensions = "i", "m", "a", "f", "d", "c", "v", "zicbom",
+ "zicbop", "zicboz", "zicntr", "zicond", "zicsr",
+ "zifencei", "zihintpause", "zihpm", "zfh", "zba",
+ "zbb", "zbc", "zbs", "zkt", "zvfh", "zvkt",
+ "sscofpmf", "sstc", "svinval", "svnapot", "svpbmt";
+ riscv,cbom-block-size = <64>;
+ riscv,cbop-block-size = <64>;
+ riscv,cboz-block-size = <64>;
+ mmu-type = "riscv,sv39";
+
+ cpu7_intc: interrupt-controller {
+ compatible = "riscv,cpu-intc";
+ interrupt-controller;
+ #interrupt-cells = <1>;
+ };
+ };
+
+ };
+
+ soc {
+ compatible = "simple-bus";
+ interrupt-parent = <&plic>;
+ #address-cells = <2>;
+ #size-cells = <2>;
+ dma-noncoherent;
+ ranges;
+
+ uart0: serial@...17000 {
+ compatible = "spacemit,k1-uart", "intel,xscale-uart";
+ reg = <0x0 0xd4017000 0x0 0x100>;
+ interrupts = <42>;
+ clock-frequency = <14857000>;
+ reg-shift = <2>;
+ reg-io-width = <4>;
+ status = "disabled";
+ };
+
+ uart2: serial@...17100 {
+ compatible = "spacemit,k1-uart", "intel,xscale-uart";
+ reg = <0x0 0xd4017100 0x0 0x100>;
+ interrupts = <44>;
+ clock-frequency = <14857000>;
+ reg-shift = <2>;
+ reg-io-width = <4>;
+ status = "disabled";
+ };
+
+ uart3: serial@...17200 {
+ compatible = "spacemit,k1-uart", "intel,xscale-uart";
+ reg = <0x0 0xd4017200 0x0 0x100>;
+ interrupts = <45>;
+ clock-frequency = <14857000>;
+ reg-shift = <2>;
+ reg-io-width = <4>;
+ status = "disabled";
+ };
+
+ uart4: serial@...17300 {
+ compatible = "spacemit,k1-uart", "intel,xscale-uart";
+ reg = <0x0 0xd4017300 0x0 0x100>;
+ interrupts = <46>;
+ clock-frequency = <14857000>;
+ reg-shift = <2>;
+ reg-io-width = <4>;
+ status = "disabled";
+ };
+
+ uart5: serial@...17400 {
+ compatible = "spacemit,k1-uart", "intel,xscale-uart";
+ reg = <0x0 0xd4017400 0x0 0x100>;
+ interrupts = <47>;
+ clock-frequency = <14857000>;
+ reg-shift = <2>;
+ reg-io-width = <4>;
+ status = "disabled";
+ };
+
+ uart6: serial@...17500 {
+ compatible = "spacemit,k1-uart", "intel,xscale-uart";
+ reg = <0x0 0xd4017500 0x0 0x100>;
+ interrupts = <48>;
+ clock-frequency = <14857000>;
+ reg-shift = <2>;
+ reg-io-width = <4>;
+ status = "disabled";
+ };
+
+ uart7: serial@...17600 {
+ compatible = "spacemit,k1-uart", "intel,xscale-uart";
+ reg = <0x0 0xd4017600 0x0 0x100>;
+ interrupts = <49>;
+ clock-frequency = <14857000>;
+ reg-shift = <2>;
+ reg-io-width = <4>;
+ status = "disabled";
+ };
+
+ uart8: serial@...17700 {
+ compatible = "spacemit,k1-uart", "intel,xscale-uart";
+ reg = <0x0 0xd4017700 0x0 0x100>;
+ interrupts = <50>;
+ clock-frequency = <14857000>;
+ reg-shift = <2>;
+ reg-io-width = <4>;
+ status = "disabled";
+ };
+
+ uart9: serial@...17800 {
+ compatible = "spacemit,k1-uart", "intel,xscale-uart";
+ reg = <0x0 0xd4017800 0x0 0x100>;
+ interrupts = <51>;
+ clock-frequency = <14857000>;
+ reg-shift = <2>;
+ reg-io-width = <4>;
+ status = "disabled";
+ };
+
+ plic: interrupt-controller@...00000 {
+ compatible = "spacemit,k1-plic", "sifive,plic-1.0.0";
+ reg = <0x0 0xe0000000 0x0 0x4000000>;
+ interrupts-extended = <&cpu0_intc 11>, <&cpu0_intc 9>,
+ <&cpu1_intc 11>, <&cpu1_intc 9>,
+ <&cpu2_intc 11>, <&cpu2_intc 9>,
+ <&cpu3_intc 11>, <&cpu3_intc 9>,
+ <&cpu4_intc 11>, <&cpu4_intc 9>,
+ <&cpu5_intc 11>, <&cpu5_intc 9>,
+ <&cpu6_intc 11>, <&cpu6_intc 9>,
+ <&cpu7_intc 11>, <&cpu7_intc 9>;
+ interrupt-controller;
+ #address-cells = <0>;
+ #interrupt-cells = <1>;
+ riscv,ndev = <159>;
+ };
+
+ clint: timer@...00000 {
+ compatible = "spacemit,k1-clint", "sifive,clint0";
+ reg = <0x0 0xe4000000 0x0 0x10000>;
+ 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>;
+ };
+ };
+};
--
2.45.2
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