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![Wenyou Yang](/assets/img/avatar_default.png)
The device tree source files of at91sam9n12ek boards are copied from the Linux v4.10, do the changes as below. - Add the reg property for the pinctrl node. - Move the gpio (pioA, pioB, pioC, pioD) nodes as the pinctrl's slibling nodes, instead of the child nodes. - Change the compatible of the spi flash to "spi-flash". - Add the spi0 aliases. - Fix the pinctrl-names of mmc0 node. - Add the "u-boot,dm-pre-reloc" property to determine which nodes are used by the board_init_f stage. - Fix the compilation warnings. Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com> Reviewed-by: Simon Glass <sjg@chromium.org>
266 lines
5.2 KiB
Plaintext
266 lines
5.2 KiB
Plaintext
/*
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* at91sam9n12ek.dts - Device Tree file for AT91SAM9N12-EK board
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*
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* Copyright (C) 2012 Atmel,
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* 2012 Hong Xu <hong.xu@atmel.com>
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*
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* Licensed under GPLv2 or later.
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*/
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/dts-v1/;
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#include "at91sam9n12.dtsi"
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/ {
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model = "Atmel AT91SAM9N12-EK";
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compatible = "atmel,at91sam9n12ek", "atmel,at91sam9n12", "atmel,at91sam9";
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chosen {
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bootargs = "root=/dev/mtdblock1 rw rootfstype=jffs2";
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stdout-path = "serial0:115200n8";
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u-boot,dm-pre-reloc;
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};
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memory {
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reg = <0x20000000 0x8000000>;
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};
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clocks {
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slow_xtal {
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clock-frequency = <32768>;
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};
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main_xtal {
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clock-frequency = <16000000>;
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};
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};
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ahb {
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apb {
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dbgu: serial@fffff200 {
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u-boot,dm-pre-reloc;
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status = "okay";
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};
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ssc0: ssc@f0010000 {
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status = "okay";
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};
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i2c0: i2c@f8010000 {
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status = "okay";
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wm8904: codec@1a {
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compatible = "wlf,wm8904";
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reg = <0x1a>;
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clocks = <&pck0>;
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clock-names = "mclk";
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};
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qt1070: keyboard@1b {
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compatible = "qt1070";
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reg = <0x1b>;
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interrupt-parent = <&pioA>;
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interrupts = <2 IRQ_TYPE_EDGE_FALLING>;
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pinctrl-names = "default";
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pinctrl-0 = <&pinctrl_qt1070_irq>;
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};
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};
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mmc0: mmc@f0008000 {
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pinctrl-names = "default";
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pinctrl-0 = <
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&pinctrl_board_mmc0
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&pinctrl_mmc0_slot0_clk_cmd_dat0
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&pinctrl_mmc0_slot0_dat1_3>;
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status = "okay";
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slot@0 {
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reg = <0>;
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bus-width = <4>;
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cd-gpios = <&pioA 7 GPIO_ACTIVE_HIGH>;
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};
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};
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pinctrl@fffff400 {
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mmc0 {
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pinctrl_board_mmc0: mmc0-board {
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atmel,pins =
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<AT91_PIOA 7 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP_DEGLITCH>; /* PA7 gpio CD pin pull up and deglitch */
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};
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};
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qt1070 {
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pinctrl_qt1070_irq: qt1070_irq {
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atmel,pins =
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<AT91_PIOA 2 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP_DEGLITCH>;
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};
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};
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sound {
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pinctrl_pck0_as_audio_mck: pck0_as_audio_mck {
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atmel,pins =
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<AT91_PIOB 10 AT91_PERIPH_B AT91_PINCTRL_NONE>;
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};
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};
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usb1 {
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pinctrl_usb1_vbus_sense: usb1_vbus_sense {
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atmel,pins =
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<AT91_PIOB 16 AT91_PERIPH_GPIO AT91_PINCTRL_DEGLITCH>; /* PB16 gpio usb vbus sense, no pull up and deglitch */
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};
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};
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};
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spi0: spi@f0000000 {
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status = "okay";
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cs-gpios = <&pioA 14 0>, <0>, <0>, <0>;
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spi_flash@0 {
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compatible = "spi-flash";
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spi-max-frequency = <50000000>;
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reg = <0>;
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};
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};
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hlcdc: hlcdc@f8038000 {
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status = "okay";
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hlcdc-display-controller {
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pinctrl-names = "default";
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pinctrl-0 = <&pinctrl_lcd_base &pinctrl_lcd_rgb888>;
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port@0 {
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hlcdc_panel_output: endpoint@0 {
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reg = <0>;
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remote-endpoint = <&panel_input>;
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};
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};
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};
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};
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usb1: gadget@f803c000 {
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pinctrl-names = "default";
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pinctrl-0 = <&pinctrl_usb1_vbus_sense>;
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atmel,vbus-gpio = <&pioB 16 GPIO_ACTIVE_HIGH>;
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status = "okay";
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};
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watchdog@fffffe40 {
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status = "okay";
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};
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rtc@fffffeb0 {
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status = "okay";
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};
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};
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nand0: nand@40000000 {
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nand-bus-width = <8>;
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nand-ecc-mode = "hw";
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atmel,has-pmecc;
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atmel,pmecc-cap = <2>;
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atmel,pmecc-sector-size = <512>;
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nand-on-flash-bbt;
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status = "okay";
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};
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usb0: ohci@00500000 {
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num-ports = <1>;
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atmel,vbus-gpio = <&pioB 7 GPIO_ACTIVE_LOW>;
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status = "okay";
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};
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};
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backlight: backlight {
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compatible = "pwm-backlight";
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pwms = <&hlcdc_pwm 0 50000 0>;
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brightness-levels = <0 4 8 16 32 64 128 255>;
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default-brightness-level = <6>;
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power-supply = <&bl_reg>;
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status = "okay";
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};
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bl_reg: backlight_regulator {
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compatible = "regulator-fixed";
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regulator-name = "backlight-power-supply";
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regulator-min-microvolt = <5000000>;
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regulator-max-microvolt = <5000000>;
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status = "okay";
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};
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leds {
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compatible = "gpio-leds";
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d8 {
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label = "d8";
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gpios = <&pioB 4 GPIO_ACTIVE_LOW>;
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linux,default-trigger = "mmc0";
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};
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d9 {
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label = "d9";
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gpios = <&pioB 5 GPIO_ACTIVE_LOW>;
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linux,default-trigger = "nand-disk";
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};
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d10 {
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label = "d10";
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gpios = <&pioB 6 GPIO_ACTIVE_HIGH>;
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linux,default-trigger = "heartbeat";
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};
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};
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gpio_keys {
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compatible = "gpio-keys";
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enter {
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label = "Enter";
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gpios = <&pioB 3 GPIO_ACTIVE_LOW>;
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linux,code = <28>;
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wakeup-source;
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};
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};
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panel: panel {
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compatible = "qiaodian,qd43003c0-40", "simple-panel";
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backlight = <&backlight>;
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power-supply = <&panel_reg>;
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#address-cells = <1>;
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#size-cells = <0>;
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status = "okay";
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port@0 {
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reg = <0>;
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#address-cells = <1>;
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#size-cells = <0>;
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panel_input: endpoint@0 {
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reg = <0>;
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remote-endpoint = <&hlcdc_panel_output>;
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};
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};
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};
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panel_reg: panel_regulator {
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compatible = "regulator-fixed";
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regulator-name = "panel-power-supply";
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regulator-min-microvolt = <3300000>;
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regulator-max-microvolt = <3300000>;
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status = "okay";
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};
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sound {
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compatible = "atmel,asoc-wm8904";
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pinctrl-names = "default";
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pinctrl-0 = <&pinctrl_pck0_as_audio_mck>;
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atmel,model = "wm8904 @ AT91SAM9N12";
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atmel,audio-routing =
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"Headphone Jack", "HPOUTL",
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"Headphone Jack", "HPOUTR",
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"IN2L", "Line In Jack",
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"IN2R", "Line In Jack",
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"Mic", "MICBIAS",
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"IN1L", "Mic";
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atmel,ssc-controller = <&ssc0>;
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atmel,audio-codec = <&wm8904>;
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};
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};
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