Add device tree based on evaluation board pcb105.
Signed-off-by: Horatiu Vultur horatiu.vultur@microchip.com --- arch/mips/dts/mscc,serval.dtsi | 149 ++++++++++++++++++++++++++++++++++++++++ arch/mips/dts/serval_pcb105.dts | 56 +++++++++++++++ 2 files changed, 205 insertions(+) create mode 100644 arch/mips/dts/mscc,serval.dtsi create mode 100644 arch/mips/dts/serval_pcb105.dts
diff --git a/arch/mips/dts/mscc,serval.dtsi b/arch/mips/dts/mscc,serval.dtsi new file mode 100644 index 0000000..bd60051 --- /dev/null +++ b/arch/mips/dts/mscc,serval.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,serval"; + + 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 = <416666666>; + }; + + sys_clk: sys-clk { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <208333333>; + }; + + ahb_clk: ahb-clk { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <208333333>; + }; + + ahb { + compatible = "simple-bus"; + #address-cells = <1>; + #size-cells = <1>; + ranges = <0 0x70000000 0x2000000>; + + interrupt-parent = <&intc>; + + cpu_ctrl: syscon@0 { + compatible = "mscc,serval-cpu-syscon", "syscon"; + reg = <0x0 0x2c>; + }; + + intc: interrupt-controller@70 { + compatible = "mscc,serval-icpu-intr"; + reg = <0x70 0x70>; + #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@1070008 { + compatible = "mscc,serval-chip-reset"; + reg = <0x1070008 0x4>; + }; + + gpio: pinctrl@1070034 { + compatible = "mscc,serval-pinctrl"; + reg = <0x1070034 0x68>; + gpio-controller; + #gpio-cells = <2>; + gpio-ranges = <&gpio 0 0 22>; + + sgpio_pins: sgpio-pins { + pins = "GPIO_0", "GPIO_2", "GPIO_3", "GPIO_1"; + function = "sio"; + }; + + uart_pins: uart-pins { + pins = "GPIO_26", "GPIO_27"; + function = "uart"; + }; + + uart2_pins: uart2-pins { + pins = "GPIO_13", "GPIO_14"; + 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@10700b4 { + compatible = "mscc,luton-sgpio"; + status = "disabled"; + clocks = <&sys_clk>; + pinctrl-0 = <&sgpio_pins>; + pinctrl-names = "default"; + reg = <0x10700b4 0x100>; + gpio-controller; + #gpio-cells = <2>; + gpio-ranges = <&sgpio 0 0 64>; + }; + }; +}; diff --git a/arch/mips/dts/serval_pcb105.dts b/arch/mips/dts/serval_pcb105.dts new file mode 100644 index 0000000..d0d6fac --- /dev/null +++ b/arch/mips/dts/serval_pcb105.dts @@ -0,0 +1,56 @@ +// SPDX-License-Identifier: (GPL-2.0+ OR MIT) +/* + * Copyright (c) 2018 Microsemi Corporation + */ + +/dts-v1/; +#include "mscc,serval.dtsi" + +/ { + model = "Serval PCB105 Reference Board"; + compatible = "mscc,serval-pcb105", "mscc,serval"; + + aliases { + spi0 = &spi0; + serial0 = &uart0; + }; + + chosen { + stdout-path = "serial0:115200n8"; + }; + + gpio-leds { + compatible = "gpio-leds"; + + status_green { + label = "pcb105:green:status"; + gpios = <&sgpio 43 1>; /* p11.1 */ + default-state = "on"; + }; + + status_red { + label = "pcb105:red:status"; + gpios = <&sgpio 11 1>; /* p11.0 */ + default-state = "off"; + }; + }; +}; + +&uart0 { + status = "okay"; +}; + +&spi0 { + status = "okay"; + spi-flash@0 { + compatible = "spi-flash"; + spi-max-frequency = <18000000>; /* input clock */ + reg = <0>; /* CS0 */ + spi-cs-high; + }; +}; + +&sgpio { + status = "okay"; + sgpio-ports = <0x00FFFFFF>; +};