MSCC: Add board support for Servalt SoC family
Add board support, configuration and DTS for Servalt SoC
family. Currently there is one board in this family.
Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
diff --git a/arch/mips/dts/Makefile b/arch/mips/dts/Makefile
index 1484db9..af264ff 100644
--- a/arch/mips/dts/Makefile
+++ b/arch/mips/dts/Makefile
@@ -20,6 +20,7 @@
dtb-$(CONFIG_SOC_LUTON) += luton_pcb090.dtb luton_pcb091.dtb
dtb-$(CONFIG_SOC_OCELOT) += ocelot_pcb120.dtb ocelot_pcb123.dtb
dtb-$(CONFIG_SOC_JR2) += jr2_pcb110.dtb jr2_pcb111.dtb serval2_pcb112.dtb
+dtb-$(CONFIG_SOC_SERVALT) += servalt_pcb116.dtb
targets += $(dtb-y)
diff --git a/arch/mips/dts/mscc,servalt.dtsi b/arch/mips/dts/mscc,servalt.dtsi
new file mode 100644
index 0000000..4beb7a3
--- /dev/null
+++ b/arch/mips/dts/mscc,servalt.dtsi
@@ -0,0 +1,149 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (c) 2018 Microsemi Corporation
+ */
+
+/ {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "mscc,servalt";
+
+ cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ cpu@0 {
+ compatible = "mips,mips24KEc";
+ device_type = "cpu";
+ clocks = <&cpu_clk>;
+ reg = <0>;
+ };
+ };
+
+ aliases {
+ serial0 = &uart0;
+ };
+
+ cpuintc: interrupt-controller@0 {
+ #address-cells = <0>;
+ #interrupt-cells = <1>;
+ interrupt-controller;
+ compatible = "mti,cpu-interrupt-controller";
+ };
+
+ cpu_clk: cpu-clock {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <500000000>;
+ };
+
+ sys_clk: sys-clk {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <250000000>;
+ };
+
+ ahb_clk: ahb-clk {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <250000000>;
+ };
+
+ ahb {
+ compatible = "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0 0x70000000 0x2000000>;
+
+ interrupt-parent = <&intc>;
+
+ cpu_ctrl: syscon@0 {
+ compatible = "mscc,servalt-cpu-syscon", "syscon";
+ reg = <0x0 0x2c>;
+ };
+
+ intc: interrupt-controller@70 {
+ compatible = "mscc,servalt-icpu-intr";
+ reg = <0x70 0x74>;
+ #interrupt-cells = <1>;
+ interrupt-controller;
+ interrupt-parent = <&cpuintc>;
+ interrupts = <2>;
+ };
+
+ uart0: serial@100000 {
+ pinctrl-0 = <&uart_pins>;
+ pinctrl-names = "default";
+ compatible = "ns16550a";
+ reg = <0x100000 0x20>;
+ interrupts = <6>;
+ clocks = <&ahb_clk>;
+ reg-io-width = <4>;
+ reg-shift = <2>;
+
+ status = "disabled";
+ };
+
+ uart2: serial@100800 {
+ pinctrl-0 = <&uart2_pins>;
+ pinctrl-names = "default";
+ compatible = "ns16550a";
+ reg = <0x100800 0x20>;
+ interrupts = <7>;
+ clocks = <&ahb_clk>;
+ reg-io-width = <4>;
+ reg-shift = <2>;
+
+ status = "disabled";
+ };
+
+ reset@1010008 {
+ compatible = "mscc,servalt-chip-reset";
+ reg = <0x1010008 0x4>;
+ };
+
+ gpio: pinctrl@1010034 {
+ compatible = "mscc,servalt-pinctrl";
+ reg = <0x1010034 0x90>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&gpio 0 0 36>;
+
+ sgpio_pins: sgpio-pins {
+ pins = "GPIO_0", "GPIO_1", "GPIO_2", "GPIO_3";
+ function = "sio";
+ };
+
+ uart_pins: uart-pins {
+ pins = "GPIO_6", "GPIO_7";
+ function = "uart";
+ };
+
+ uart2_pins: uart2-pins {
+ pins = "GPIO_20", "GPIO_21";
+ function = "uart2";
+ };
+ };
+
+ spi0: spi-bitbang {
+ compatible = "mscc,luton-bb-spi";
+ status = "okay";
+ reg = <0x50 0x4>;
+ num-chipselects = <1>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
+
+ sgpio: gpio@1010120 {
+ compatible = "mscc,ocelot-sgpio";
+ status = "disabled";
+ clocks = <&sys_clk>;
+ pinctrl-0 = <&sgpio_pins>;
+ pinctrl-names = "default";
+ reg = <0x1010120 0x100>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&sgpio 0 0 128>;
+ };
+ };
+};
diff --git a/arch/mips/dts/servalt_pcb116.dts b/arch/mips/dts/servalt_pcb116.dts
new file mode 100644
index 0000000..fb33312
--- /dev/null
+++ b/arch/mips/dts/servalt_pcb116.dts
@@ -0,0 +1,56 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (c) 2018 Microsemi Corporation
+ */
+
+/dts-v1/;
+#include "mscc,servalt.dtsi"
+
+/ {
+ model = "ServalT PCB116 Reference Board";
+ compatible = "mscc,servalt-pcb116", "mscc,servalt";
+
+ aliases {
+ spi0 = &spi0;
+ serial0 = &uart0;
+ };
+
+ chosen {
+ stdout-path = "serial0:115200n8";
+ };
+
+ gpio-leds {
+ compatible = "gpio-leds";
+
+ status_green {
+ label = "pcb116:green:status";
+ gpios = <&sgpio 70 0>; /* p6.2 */
+ default-state = "on";
+ };
+
+ status_red {
+ label = "pcb116:red:status";
+ gpios = <&sgpio 102 0>; /* p6.3 */
+ default-state = "off";
+ };
+ };
+};
+
+&uart0 {
+ status = "okay";
+};
+
+&spi0 {
+ status = "okay";
+ spi-flash@0 {
+ compatible = "spi-flash";
+ spi-max-frequency = <18000000>; /* input clock */
+ reg = <0>; /* CS0 */
+ spi-cs-high;
+ };
+};
+
+&sgpio {
+ status = "okay";
+ sgpio-ports = <0x0000fe7f>;
+};