@@ -1,2 +1,3 @@
# SPDX-License-Identifier: GPL-2.0
dtb-y += cisco_sg220-26.dtb
+dtb-y += cameo-rtl9302c-2x-rtl8224-2xge.dtb
new file mode 100644
@@ -0,0 +1,73 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/dts-v1/;
+
+#include "rtl930x.dtsi"
+
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/leds/common.h>
+#include <dt-bindings/thermal/thermal.h>
+
+/ {
+ compatible = "cameo,rtl9302c-2x-rtl8224-2xge", "realtek,rtl9302-soc";
+ model = "RTL9302C Development Board";
+
+ memory@0 {
+ device_type = "memory";
+ reg = <0x0 0x8000000>;
+ };
+
+ chosen {
+ stdout-path = "serial0:115200n8";
+ };
+};
+
+&uart0 {
+ status = "okay";
+};
+
+&spi0 {
+ status = "okay";
+ flash@0 {
+ compatible = "jedec,spi-nor";
+ reg = <0>;
+ spi-max-frequency = <10000000>;
+
+ partitions {
+ compatible = "fixed-partitions";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ partition@0 {
+ label = "LOADER";
+ reg = <0x0 0xe0000>;
+ read-only;
+ };
+ partition@e0000 {
+ label = "BDINFO";
+ reg = <0xe0000 0x10000>;
+ };
+ partition@f0000 {
+ label = "SYSINFO";
+ reg = <0xf0000 0x10000>;
+ read-only;
+ };
+ partition@100000 {
+ label = "JFFS2 CFG";
+ reg = <0x100000 0x100000>;
+ };
+ partition@200000 {
+ label = "JFFS2 LOG";
+ reg = <0x200000 0x100000>;
+ };
+ partition@300000 {
+ label = "RUNTIME";
+ reg = <0x300000 0xe80000>;
+ };
+ partition@1180000 {
+ label = "RUNTIME2";
+ reg = <0x1180000 0xe80000>;
+ };
+ };
+ };
+};
new file mode 100644
@@ -0,0 +1,79 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR BSD-2-Clause
+
+#include "rtl83xx.dtsi"
+
+/ {
+ compatible = "realtek,rtl9302-soc";
+
+ cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ cpu@0 {
+ device_type = "cpu";
+ compatible = "mips,mips34Kc";
+ reg = <0>;
+ clocks = <&baseclk 0>;
+ clock-names = "cpu";
+ };
+ };
+
+ baseclk: clock-800mhz {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <800000000>;
+ };
+
+ lx_clk: clock-175mhz {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <175000000>;
+ };
+};
+
+&soc {
+ intc: interrupt-controller@3000 {
+ compatible = "realtek,rtl9300-intc", "realtek,rtl-intc";
+ reg = <0x3000 0x18>, <0x3018 0x18>;
+ interrupt-controller;
+ #interrupt-cells = <1>;
+
+ interrupt-parent = <&cpuintc>;
+ interrupts = <2>, <3>, <4>, <5>, <6>, <7>;
+ };
+
+ spi0: spi@1200 {
+ compatible = "realtek,rtl8380-spi";
+ reg = <0x1200 0x100>;
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
+
+ timer0: timer@3200 {
+ compatible = "realtek,rtl9302-timer", "realtek,otto-timer";
+ reg = <0x3200 0x10>, <0x3210 0x10>, <0x3220 0x10>,
+ <0x3230 0x10>, <0x3240 0x10>;
+
+ interrupt-parent = <&intc>;
+ interrupts = <7>, <8>, <9>, <10>, <11>;
+ clocks = <&lx_clk>;
+ };
+};
+
+&uart0 {
+ /delete-property/ clock-frequency;
+ clocks = <&lx_clk>;
+
+ interrupt-parent = <&intc>;
+ interrupts = <30>;
+};
+
+&uart1 {
+ /delete-property/ clock-frequency;
+ clocks = <&lx_clk>;
+
+ interrupt-parent = <&intc>;
+ interrupts = <31>;
+};
+
Add support for the RTL9302 SoC and the RTL9302C_2xRTL8224_2XGE reference board. The RTL930x family of SoCs are Realtek switches with an embedded MIPS core (800MHz 34Kc). Most of the peripherals are similar to the RTL838x SoC and can make use of many existing drivers. Add in full DSA switch support is still a work in progress. Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz> --- Notes: Changes in v5: - Use same mtd partition names as Realtek reference software Changes in v4: - None Changes in v3: - Use full board name Changes in v2: - Use specific compatibles instead of rtl930x - Remove unnecessary irq flags (interrupt controller is one-cell) - Remove earlycon - Name clocks as recommended in dt schema arch/mips/boot/dts/realtek/Makefile | 1 + .../cameo-rtl9302c-2x-rtl8224-2xge.dts | 73 +++++++++++++++++ arch/mips/boot/dts/realtek/rtl930x.dtsi | 79 +++++++++++++++++++ 3 files changed, 153 insertions(+) create mode 100644 arch/mips/boot/dts/realtek/cameo-rtl9302c-2x-rtl8224-2xge.dts create mode 100644 arch/mips/boot/dts/realtek/rtl930x.dtsi