This commit adds device tree support for the NXP S32G3-based
S32G-VNP-RDB3 Board [1].
The S32G3 features an 8-core ARM Cortex-A53 based SoC developed by NXP.
The device tree files are derived from the official NXP downstream
Linux tree [2].
This addition encompasses a limited selection of peripherals that
are upstream-supported. Apart from the ARM System Modules
(GIC, Generic Timer, etc.), the following IPs have been validated:
* UART: fsl-linflexuart
* SDHC: fsl-imx-esdhc
Clock settings for the chip rely on ATF Firmware [3].
Pin control integration into the device tree is pending and currently
relies on Firmware/U-Boot settings [4].
These changes were validated using BSP39 Firmware/U-Boot from NXP [5].
The modifications enable booting the official Ubuntu 22.04 from NXP on
the RDB3 with default settings from the SD card and eMMC.
[1] https://www.nxp.com/design/design-center/designs/s32g3-vehicle-networking-reference-design:S32G-VNP-RDB3
[2] https://github.com/nxp-auto-linux/linux
[3] https://github.com/nxp-auto-linux/arm-trusted-firmware
[4] https://github.com/nxp-auto-linux/u-boot
[5] https://github.com/nxp-auto-linux/auto_yocto_bsp
Signed-off-by: Wadim Mueller <wafgo01@xxxxxxxxx>
---
arch/arm64/boot/dts/freescale/Makefile | 1 +
arch/arm64/boot/dts/freescale/s32g3.dtsi | 237 ++++++++++++++++++
.../boot/dts/freescale/s32g399a-rdb3.dts | 45 ++++
3 files changed, 283 insertions(+)
create mode 100644 arch/arm64/boot/dts/freescale/s32g3.dtsi
create mode 100644 arch/arm64/boot/dts/freescale/s32g399a-rdb3.dts
diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile
index 2cb0212b63c6..e701008dbc7b 100644
--- a/arch/arm64/boot/dts/freescale/Makefile
+++ b/arch/arm64/boot/dts/freescale/Makefile
@@ -252,3 +252,4 @@ dtb-$(CONFIG_ARCH_MXC) += imx8mp-venice-gw74xx-rpidsi.dtb
dtb-$(CONFIG_ARCH_S32) += s32g274a-evb.dtb
dtb-$(CONFIG_ARCH_S32) += s32g274a-rdb2.dtb
dtb-$(CONFIG_ARCH_S32) += s32v234-evb.dtb
+dtb-$(CONFIG_ARCH_S32) += s32g399a-rdb3.dtb
diff --git a/arch/arm64/boot/dts/freescale/s32g3.dtsi b/arch/arm64/boot/dts/freescale/s32g3.dtsi
new file mode 100644
index 000000000000..54428285eec2
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/s32g3.dtsi
@@ -0,0 +1,237 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright 2021-2023 NXP
+ *
+ * Authors: Ghennadi Procopciuc <ghennadi.procopciuc@xxxxxxx>
+ * Ciprian Costea <ciprianmarian.costea@xxxxxxx>
+ * Andra-Teodora Ilie <andra.ilie@xxxxxxx>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ */
+
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+/ {
+ compatible = "nxp,s32g3";
+ interrupt-parent = <&gic>;
+ #address-cells = <0x02>;
+ #size-cells = <0x02>;
+
+ cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ cpu-map {
+ cluster0 {
+ core0 {
+ cpu = <&cpu0>;
+ };
+
+ core1 {
+ cpu = <&cpu1>;
+ };
+
+ core2 {
+ cpu = <&cpu2>;
+ };
+
+ core3 {
+ cpu = <&cpu3>;
+ };
+ };
+
+ cluster1 {
+ core0 {
+ cpu = <&cpu4>;
+ };
+
+ core1 {
+ cpu = <&cpu5>;
+ };
+
+ core2 {
+ cpu = <&cpu6>;
+ };
+
+ core3 {
+ cpu = <&cpu7>;
+ };
+ };
+ };
+
+ cpu0: cpu@0 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a53";
+ reg = <0x0>;
+ enable-method = "psci";
+ clocks = <&dfs 0>;
+ };
+
+ cpu1: cpu@1 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a53";
+ reg = <0x1>;
+ enable-method = "psci";
+ clocks = <&dfs 0>;
+ };
+
+ cpu2: cpu@2 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a53";
+ reg = <0x2>;
+ enable-method = "psci";
+ clocks = <&dfs 0>;
+ };
+
+ cpu3: cpu@3 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a53";
+ reg = <0x3>;
+ enable-method = "psci";
+ clocks = <&dfs 0>;
+ };
+
+ cpu4: cpu@100 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a53";
+ reg = <0x100>;
+ enable-method = "psci";
+ clocks = <&dfs 0>;
+ };
+
+ cpu5: cpu@101 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a53";
+ reg = <0x101>;
+ enable-method = "psci";
+ clocks = <&dfs 0>;
+ };
+
+ cpu6: cpu@102 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a53";
+ reg = <0x102>;
+ enable-method = "psci";
+ clocks = <&dfs 0>;
+ };
+
+ cpu7: cpu@103 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a53";
+ reg = <0x103>;
+ enable-method = "psci";
+ clocks = <&dfs 0>;
+ };
+ };
+
+ pmu {
+ compatible = "arm,cortex-a53-pmu";
+ interrupts = <GIC_PPI 7 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
+ timer {
+ compatible = "arm,armv8-timer";
+ interrupt-parent = <&gic>;
+ interrupts = <GIC_PPI 13 IRQ_TYPE_LEVEL_LOW>, /* sec-phys */
+ <GIC_PPI 14 IRQ_TYPE_LEVEL_LOW>, /* phys */
+ <GIC_PPI 11 IRQ_TYPE_LEVEL_LOW>, /* virt */
+ <GIC_PPI 10 IRQ_TYPE_LEVEL_LOW>, /* hyp-phys */
+ <GIC_PPI 12 IRQ_TYPE_LEVEL_LOW>; /* hyp-virt */
+ arm,no-tick-in-suspend;
+ };
+
+ reserved-memory {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+
+ scmi_shmem: shm@d0000000 {
+ compatible = "arm,scmi-shmem";
+ reg = <0x0 0xd0000000 0x0 0x80>;
+ no-map;
+ };
+ };
+
+ firmware {
+ scmi: scmi {
+ compatible = "arm,scmi-smc";
+ shmem = <&scmi_shmem>;
+ arm,smc-id = <0xc20000fe>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ dfs: protocol@13 {
+ reg = <0x13>;
+ #clock-cells = <1>;
+ };
+
+ clks: protocol@14 {
+ reg = <0x14>;
+ #clock-cells = <1>;
+ };
+ };
+
+ psci: psci {
+ compatible = "arm,psci-1.0";
+ method = "smc";
+ };
+ };
+
+ soc@0 {
+ compatible = "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0 0 0 0x80000000>;
+
+ uart0: serial@401c8000 {
+ compatible = "nxp,s32g3-linflexuart",
+ "fsl,s32v234-linflexuart";
+ reg = <0x401c8000 0x3000>;
+ interrupts = <GIC_SPI 82 IRQ_TYPE_EDGE_RISING>;
+ status = "disabled";
+ };
+
+ uart1: serial@401cc000 {
+ compatible = "nxp,s32g3-linflexuart",
+ "fsl,s32v234-linflexuart";
+ reg = <0x401cc000 0x3000>;
+ interrupts = <GIC_SPI 83 IRQ_TYPE_EDGE_RISING>;
+ status = "disabled";
+ };
+
+ uart2: serial@402bc000 {
+ compatible = "nxp,s32g3-linflexuart",
+ "fsl,s32v234-linflexuart";
+ reg = <0x402bc000 0x3000>;
+ interrupts = <GIC_SPI 84 IRQ_TYPE_EDGE_RISING>;
+ status = "disabled";
+ };
+
+ gic: interrupt-controller@50800000 {
+ compatible = "arm,gic-v3";
+ #interrupt-cells = <3>;
+ interrupt-controller;
+ reg = <0x50800000 0x10000>,
+ <0x50900000 0x200000>,
+ <0x50400000 0x2000>,
+ <0x50410000 0x2000>,
+ <0x50420000 0x2000>;
+ interrupts = <GIC_PPI 9 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
+ usdhc0: mmc@402f0000 {
+ compatible = "nxp,s32g3-usdhc",
+ "nxp,s32g2-usdhc";
+ reg = <0x402f0000 0x1000>;
+ interrupts = <GIC_SPI 36 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&clks 32>,
+ <&clks 31>,
+ <&clks 33>;
+ clock-names = "ipg", "ahb", "per";
+ status = "disabled";
+ };
+ };
+};
diff --git a/arch/arm64/boot/dts/freescale/s32g399a-rdb3.dts b/arch/arm64/boot/dts/freescale/s32g399a-rdb3.dts
new file mode 100644
index 000000000000..db6b4db89612
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/s32g399a-rdb3.dts
@@ -0,0 +1,45 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright 2021-2023 NXP
+ *
+ * NXP S32G3 Reference Design Board 3 (S32G-VNP-RDB3)
+ */
+
+/dts-v1/;
+
+#include "s32g3.dtsi"
+
+/ {
+ model = "NXP S32G3 Reference Design Board 3 (S32G-VNP-RDB3)";
+ compatible = "nxp,s32g399a-rdb3", "nxp,s32g3";
+
+ aliases {
+ serial0 = &uart0;
+ serial1 = &uart1;
+ mmc0 = &usdhc0;
+ };
+
+ chosen {
+ stdout-path = "serial0:115200n8";
+ };
+
+ /* 4GiB RAM */
+ memory@80000000 {
+ device_type = "memory";
+ reg = <0x0 0x80000000 0 0x80000000>,
+ <0x8 0x80000000 0 0x80000000>;
+ };
+};
+
+&uart0 {
+ status = "okay";
+};
+
+&uart1 {
+ status = "okay";
+};
+
+&usdhc0 {
+ bus-width = <8>;
+ status = "okay";
+};
--
2.25.1
