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https://github.com/torvalds/linux
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53e9cb1dcd
This patch adds the device tree node for si5351 clock generator and the corresponding oscillator connected to it. It also limits i2c frequency to 100kHz as there are bus locks reported on higher frequencies. Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
138 lines
2.4 KiB
Plaintext
138 lines
2.4 KiB
Plaintext
/dts-v1/;
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/include/ "dove.dtsi"
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/ {
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model = "SolidRun CuBox";
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compatible = "solidrun,cubox", "marvell,dove";
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memory {
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device_type = "memory";
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reg = <0x00000000 0x40000000>;
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};
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chosen {
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bootargs = "console=ttyS0,115200n8 earlyprintk";
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};
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leds {
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compatible = "gpio-leds";
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pinctrl-0 = <&pmx_gpio_18>;
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pinctrl-names = "default";
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power {
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label = "Power";
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gpios = <&gpio0 18 1>;
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linux,default-trigger = "default-on";
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};
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};
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regulators {
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compatible = "simple-bus";
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#address-cells = <1>;
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#size-cells = <0>;
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usb_power: regulator@1 {
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compatible = "regulator-fixed";
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reg = <1>;
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regulator-name = "USB Power";
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regulator-min-microvolt = <5000000>;
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regulator-max-microvolt = <5000000>;
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enable-active-high;
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regulator-always-on;
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regulator-boot-on;
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gpio = <&gpio0 1 0>;
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};
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};
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clocks {
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/* 25MHz reference crystal */
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ref25: oscillator {
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compatible = "fixed-clock";
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#clock-cells = <0>;
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clock-frequency = <25000000>;
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};
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};
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};
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&uart0 { status = "okay"; };
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&sata0 { status = "okay"; };
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&i2c0 {
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status = "okay";
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clock-frequency = <100000>;
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si5351: clock-generator {
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compatible = "silabs,si5351a-msop";
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reg = <0x60>;
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#address-cells = <1>;
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#size-cells = <0>;
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#clock-cells = <1>;
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/* connect xtal input to 25MHz reference */
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clocks = <&ref25>;
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/* connect xtal input as source of pll0 and pll1 */
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silabs,pll-source = <0 0>, <1 0>;
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clkout0 {
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reg = <0>;
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silabs,drive-strength = <8>;
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silabs,multisynth-source = <0>;
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silabs,clock-source = <0>;
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silabs,pll-master;
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};
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clkout1 {
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reg = <1>;
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silabs,drive-strength = <8>;
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silabs,multisynth-source = <1>;
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silabs,clock-source = <0>;
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silabs,pll-master;
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};
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clkout2 {
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reg = <2>;
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silabs,multisynth-source = <1>;
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silabs,clock-source = <0>;
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};
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};
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};
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&sdio0 {
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status = "okay";
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/* sdio0 card detect is connected to wrong pin on CuBox */
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cd-gpios = <&gpio0 12 1>;
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};
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&spi0 {
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status = "okay";
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/* spi0.0: 4M Flash Winbond W25Q32BV */
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spi-flash@0 {
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compatible = "st,w25q32";
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spi-max-frequency = <20000000>;
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reg = <0>;
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};
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};
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&pinctrl {
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pinctrl-0 = <&pmx_gpio_1 &pmx_gpio_12>;
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pinctrl-names = "default";
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pmx_gpio_1: pmx-gpio-1 {
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marvell,pins = "mpp1";
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marvell,function = "gpio";
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};
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pmx_gpio_12: pmx-gpio-12 {
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marvell,pins = "mpp12";
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marvell,function = "gpio";
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};
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pmx_gpio_18: pmx-gpio-18 {
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marvell,pins = "mpp18";
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marvell,function = "gpio";
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};
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};
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