Hi Horatiu,
On mer., janv. 09 2019, Horatiu Vultur <horatiu.vul...@microchip.com> wrote:
> Add device tree based on evaluation board pcb110.
>
> Signed-off-by: Horatiu Vultur <horatiu.vul...@microchip.com>
> ---
> MAINTAINERS | 1 +
> arch/mips/dts/jr2_pcb110.dts | 74 +++++++++++++++++
> arch/mips/dts/mscc,jr2.dtsi | 187
> +++++++++++++++++++++++++++++++++++++++++++
> 3 files changed, 262 insertions(+)
> create mode 100644 arch/mips/dts/jr2_pcb110.dts
> create mode 100644 arch/mips/dts/mscc,jr2.dtsi
>
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 495d3e5..f05c36b 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -521,6 +521,7 @@ F: arch/mips/mach-mscc/
> F: arch/mips/dts/luton*
> F: arch/mips/dts/mscc*
> F: arch/mips/dts/ocelot*
> +F: arch/mips/dts/jr2*
> F: board/mscc/
> F: configs/mscc*
> F: drivers/gpio/mscc_sgpio.c
> diff --git a/arch/mips/dts/jr2_pcb110.dts b/arch/mips/dts/jr2_pcb110.dts
> new file mode 100644
> index 0000000..54b8988
> --- /dev/null
> +++ b/arch/mips/dts/jr2_pcb110.dts
> @@ -0,0 +1,74 @@
> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> +/*
> + * Copyright (c) 2018 Microsemi Corporation
> + */
> +
> +/dts-v1/;
> +#include "mscc,jr2.dtsi"
> +
> +/ {
> + model = "Jaguar2 Cu8-Sfp16 PCB110 Reference Board";
> + compatible = "mscc,jr2-pcb110", "mscc,jr2";
> +
> + aliases {
> + spi0 = &spi0;
> + serial0 = &uart0;
> + };
> +
> + chosen {
> + stdout-path = "serial0:115200n8";
> + };
> +
> + gpio-leds {
> + compatible = "gpio-leds";
> +
> + status_green {
> + label = "pcb110:green:status";
> + gpios = <&gpio 12 0>;
> + default-state = "on";
> + };
> +
> + status_red {
> + label = "pcb110:red:status";
> + gpios = <&gpio 13 0>;
> + default-state = "off";
> + };
> + };
> +};
> +
> +&uart0 {
> + status = "okay";
> +};
> +
> +&spi0 {
> + status = "okay";
> + spi-flash@0 {
> + compatible = "spi-flash";
> + spi-max-frequency = <18000000>; /* input clock */
> + reg = <0>; /* CS0 */
> + };
> +};
> +
> +&gpio {
> + /* SPIO only use DO, CLK, no inputs */
> + sgpio1_pins: sgpio1-pins {
> + pins = "GPIO_4", "GPIO_5";
> + function = "sio1";
> + };
> +};
> +
> +&sgpio {
> + status = "okay";
> + sgpio-ports = <0x00ffffff>;
> +};
> +
> +&sgpio1 {
> + status = "okay";
> + sgpio-ports = <0x00ff0000>;
> +};
> +
> +&sgpio2 {
> + status = "okay";
> + sgpio-ports = <0x3f00ffff>;
> + gpio-ranges = <&sgpio2 0 0 96>;
> +};
> diff --git a/arch/mips/dts/mscc,jr2.dtsi b/arch/mips/dts/mscc,jr2.dtsi
> new file mode 100644
> index 0000000..1ae7873
> --- /dev/null
> +++ b/arch/mips/dts/mscc,jr2.dtsi
> @@ -0,0 +1,187 @@
> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> +/*
> + * Copyright (c) 2018 Microsemi Corporation
> + */
> +
> +/ {
> + #address-cells = <1>;
> + #size-cells = <1>;
> + compatible = "mscc,jr2";
> +
> + 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>;
> + };
> +
> + 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,jr2-cpu-syscon", "syscon";
> + reg = <0x0 0x2c>;
> + };
> +
> + intc: interrupt-controller@70 {
> + compatible = "mscc,jr2-icpu-intr";
> + reg = <0x70 0x94>;
> + #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";
> + };
> +
> + spi0: spi-master@101000 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + compatible = "snps,dw-apb-ssi";
> + reg = <0x101000 0x40>;
> + num-chipselect = <4>;
> + bus-num = <0>;
> + reg-io-width = <4>;
> + reg-shift = <2>;
> + spi-max-frequency = <18000000>; /* input clock */
> + clocks = <&ahb_clk>;
> +
> + status = "disabled";
> + };
> +
> + reset@1010008 {
> + compatible = "mscc,jr2-chip-reset";
> + reg = <0x1010008 0x4>;
> + };
> +
> + gpio: pinctrl@1070034 {
> + compatible = "mscc,jr2-pinctrl";
Actually the binding for the pin controller of the Jaguar 2 had already
been posted for the Linux kernel. So in order to be able to use the same
dts between Linux and U-Boot and should be good to use the same binding:
https://elixir.bootlin.com/linux/v5.0-rc1/source/Documentation/devicetree/bindings/pinctrl/mscc,ocelot-pinctrl.txt#L6
Gregory
> + reg = <0x1010038 0x90>;
> + gpio-controller;
> + #gpio-cells = <2>;
> + gpio-ranges = <&gpio 0 0 64>;
> +
> + sgpio_pins: sgpio-pins {
> + pins = "GPIO_0", "GPIO_1", "GPIO_2", "GPIO_3";
> + function = "sio";
> + };
> +
> + sgpio1_pins: sgpio1-pins {
> + pins = "GPIO_4", "GPIO_5", "GPIO_12", "GPIO_13";
> + function = "sio1";
> + };
> +
> + sgpio2_pins: sgpio2-pins {
> + pins = "GPIO_30", "GPIO_31",
> + "GPIO_32", "GPIO_33";
> + function = "sio2";
> + };
> +
> + uart_pins: uart-pins {
> + pins = "GPIO_10", "GPIO_11";
> + function = "uart";
> + };
> +
> + uart2_pins: uart2-pins {
> + pins = "GPIO_24", "GPIO_25";
> + function = "uart2";
> + };
> + };
> +
> + sgpio: gpio@1010150 {
> + compatible = "mscc,ocelot-sgpio";
> + status = "disabled";
> + pinctrl-0 = <&sgpio_pins>;
> + pinctrl-names = "default";
> + reg = <0x1010150 0x100>;
> + gpio-controller;
> + #gpio-cells = <2>;
> + gpio-ranges = <&sgpio 0 0 64>;
> + gpio-bank-name = "sgpio0_";
> + sgpio-clock = <0x14>;
> + };
> +
> + sgpio1: gpio@101025c {
> + compatible = "mscc,ocelot-sgpio";
> + status = "disabled";
> + pinctrl-0 = <&sgpio1_pins>;
> + pinctrl-names = "default";
> + reg = <0x101025c 0x100>;
> + gpio-controller;
> + #gpio-cells = <2>;
> + gpio-ranges = <&sgpio1 0 0 64>;
> + gpio-bank-name = "sgpio1_";
> + sgpio-clock = <0x14>;
> + };
> +
> + sgpio2: gpio@1010368 {
> + compatible = "mscc,ocelot-sgpio";
> + status = "disabled";
> + pinctrl-0 = <&sgpio2_pins>;
> + pinctrl-names = "default";
> + reg = <0x1010368 0x100>;
> + gpio-controller;
> + #gpio-cells = <2>;
> + gpio-ranges = <&sgpio2 0 0 64>;
> + gpio-bank-name = "sgpio2_";
> + sgpio-clock = <0x14>;
> + };
> + };
> +};
> --
> 2.7.4
>
--
Gregory Clement, Bootlin
Embedded Linux and Kernel engineering
http://bootlin.com
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