Quelle imx28-btt3.dtsi
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// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
/*
* Copyright 2024
* Lukasz Majewski, DENX Software Engineering, lukma@denx.de
*/
/dts-v1/;
#include "imx28-lwe.dtsi"
/ {
model = "BTT3";
compatible = "lwn,imx28-btt3", "fsl,imx28";
chosen {
bootargs = "root=/dev/mmcblk0p2 rootfstype=ext4 ro rootwait console=ttyAMA0,115200 panic=1 quiet";
};
memory@40000000 {
reg = <0x40000000 0x10000000>;
device_type = "memory";
};
panel {
compatible = "powertip,hx8238a", "panel-dpi";
power-supply = <®_3v3>;
width-mm = <70>;
height-mm = <52>;
panel-timing {
clock-frequency = <6500000>;
hactive = <320>;
vactive = <240>;
hfront-porch = <20>;
hback-porch = <38>;
hsync-len = <30>;
vfront-porch = <4>;
vback-porch = <14>;
vsync-len = <4>;
hsync-active = <0>;
vsync-active = <0>;
de-active = <0>;
pixelclk-active = <1>;
};
port {
panel_in: endpoint {
remote-endpoint = <&display_out>;
};
};
};
poweroff {
compatible = "gpio-poweroff";
gpios = <&gpio0 24 GPIO_ACTIVE_HIGH>;
};
sound {
compatible = "simple-audio-card";
simple-audio-card,name = "BTTC Audio";
simple-audio-card,widgets = "Speaker", "BTTC Speaker";
simple-audio-card,routing = "BTTC Speaker", "SPKOUTN", "BTTC Speaker", "SPKOUTP";
simple-audio-card,dai-link@0 {
format = "left_j";
bitclock-master = <&dai0_master>;
frame-master = <&dai0_master>;
mclk-fs = <256>;
dai0_master: cpu {
sound-dai = <&saif0>;
};
codec {
sound-dai = <&wm89xx>;
clocks = <&saif0>;
};
};
};
wifi_pwrseq: sdio-pwrseq {
compatible = "mmc-pwrseq-simple";
pinctrl-names = "default";
pinctrl-0 = <&wifi_en_pin_bttc>;
reset-gpios = <&gpio0 27 GPIO_ACTIVE_LOW>;
/* W1-163 needs 60us for WL_EN to be low and */
/* 150ms after high before downloading FW is possible */
post-power-on-delay-ms = <200>;
power-off-delay-us = <100>;
};
};
&auart0 {
pinctrl-names = "default";
pinctrl-0 = <&auart0_2pins_a>;
status = "okay";
};
&auart3 {
pinctrl-names = "default";
pinctrl-0 = <&auart3_pins_a>;
uart-has-rtscts;
status = "okay";
};
&i2c0 {
wm89xx: audio-codec@1a {
compatible = "wlf,wm8940";
reg = <0x1a>;
#sound-dai-cells = <0>;
};
};
&lcdif {
pinctrl-names = "default";
pinctrl-0 = <&lcdif_24bit_pins_a>, <&lcdif_sync_pins_bttc>,
<&lcdif_reset_pins_bttc>;
status = "okay";
port {
display_out: endpoint {
remote-endpoint = <&panel_in>;
};
};
};
&mac0 {
clocks = <&clks 57>, <&clks 57>, <&clks 64>;
clock-names = "ipg", "ahb", "enet_out";
phy-handle = <&mac0_phy>;
phy-mode = "rmii";
phy-supply = <®_3v3>;
/*
* This MAC address is adjusted during production.
* Value specified below is used as a fallback during recovery.
*/
local-mac-address = [ 00 11 B8 00 BF 8A ];
status = "okay";
mdio {
#address-cells = <1>;
#size-cells = <0>;
mac0_phy: ethernet-phy@0 {
/* LAN8720Ai - PHY ID */
compatible = "ethernet-phy-id0007.c0f0","ethernet-phy-ieee802.3-c22";
reg = <0>;
smsc,disable-energy-detect;
max-speed = <100>;
reset-gpios = <&gpio4 12 GPIO_ACTIVE_LOW>;
reset-assert-us = <1000>;
reset-deassert-us = <1000>;
};
};
};
&pinctrl {
pinctrl-names = "default";
pinctrl-0 = <&hog_pins_a>, <&hog_pins_rev>;
hog_pins_a: hog@0 {
reg = <0>;
fsl,pinmux-ids = <
MX28_PAD_GPMI_RDY2__GPIO_0_22
MX28_PAD_GPMI_RDY3__GPIO_0_23
MX28_PAD_GPMI_RDN__GPIO_0_24
MX28_PAD_LCD_VSYNC__GPIO_1_28
MX28_PAD_SSP2_SS1__GPIO_2_20
MX28_PAD_SSP2_SS2__GPIO_2_21
MX28_PAD_AUART2_CTS__GPIO_3_10
MX28_PAD_AUART2_RTS__GPIO_3_11
MX28_PAD_GPMI_WRN__GPIO_0_25
MX28_PAD_ENET0_RXD2__GPIO_4_9
MX28_PAD_ENET0_TXD2__GPIO_4_11
>;
fsl,drive-strength = <MXS_DRIVE_4mA>;
fsl,voltage = <MXS_VOLTAGE_HIGH>;
fsl,pull-up = <MXS_PULL_DISABLE>;
};
hog_pins_rev: hog@1 {
reg = <1>;
fsl,pinmux-ids = <
MX28_PAD_ENET0_RXD3__GPIO_4_10
MX28_PAD_ENET0_TX_CLK__GPIO_4_5
MX28_PAD_ENET0_COL__GPIO_4_14
MX28_PAD_ENET0_CRS__GPIO_4_15
>;
fsl,drive-strength = <MXS_DRIVE_4mA>;
fsl,voltage = <MXS_VOLTAGE_HIGH>;
fsl,pull-up = <MXS_PULL_DISABLE>;
};
keypad_pins_bttc: keypad-bttc@0 {
reg = <0>;
fsl,pinmux-ids = <
MX28_PAD_GPMI_D00__GPIO_0_0
MX28_PAD_AUART0_CTS__GPIO_3_2
MX28_PAD_AUART0_RTS__GPIO_3_3
MX28_PAD_GPMI_D03__GPIO_0_3
MX28_PAD_GPMI_D04__GPIO_0_4
MX28_PAD_GPMI_D05__GPIO_0_5
MX28_PAD_GPMI_D06__GPIO_0_6
MX28_PAD_GPMI_D07__GPIO_0_7
MX28_PAD_GPMI_CE1N__GPIO_0_17
MX28_PAD_GPMI_CE2N__GPIO_0_18
MX28_PAD_GPMI_CE3N__GPIO_0_19
MX28_PAD_GPMI_RDY0__GPIO_0_20
>;
fsl,drive-strength = <MXS_DRIVE_4mA>;
fsl,voltage = <MXS_VOLTAGE_HIGH>;
fsl,pull-up = <MXS_PULL_DISABLE>;
};
lcdif_sync_pins_bttc: lcdif-bttc@0 {
reg = <0>;
fsl,pinmux-ids = <
MX28_PAD_LCD_DOTCLK__LCD_DOTCLK
MX28_PAD_LCD_ENABLE__LCD_ENABLE
MX28_PAD_LCD_HSYNC__LCD_HSYNC
MX28_PAD_LCD_RD_E__LCD_VSYNC
>;
fsl,drive-strength = <MXS_DRIVE_4mA>;
fsl,voltage = <MXS_VOLTAGE_HIGH>;
fsl,pull-up = <MXS_PULL_DISABLE>;
};
lcdif_reset_pins_bttc: lcdif-bttc@1 {
reg = <1>;
fsl,pinmux-ids = <
MX28_PAD_LCD_RESET__GPIO_3_30
>;
fsl,drive-strength = <MXS_DRIVE_4mA>;
fsl,voltage = <MXS_VOLTAGE_HIGH>;
fsl,pull-up = <MXS_PULL_ENABLE>;
};
ssp1_sdio_pins_a: ssp1-sdio@0 {
reg = <0>;
fsl,pinmux-ids = <
MX28_PAD_SSP1_DATA0__SSP1_D0
MX28_PAD_GPMI_D01__SSP1_D1
MX28_PAD_GPMI_D02__SSP1_D2
MX28_PAD_SSP1_DATA3__SSP1_D3
MX28_PAD_SSP1_CMD__SSP1_CMD
MX28_PAD_SSP1_SCK__SSP1_SCK
>;
fsl,drive-strength = <MXS_DRIVE_8mA>;
fsl,voltage = <MXS_VOLTAGE_HIGH>;
fsl,pull-up = <MXS_PULL_ENABLE>;
};
wifi_en_pin_bttc: wifi-en-pin@0 {
reg = <0>;
fsl,pinmux-ids = <
MX28_PAD_GPMI_CLE__GPIO_0_27
>;
fsl,drive-strength = <MXS_DRIVE_8mA>;
fsl,voltage = <MXS_VOLTAGE_HIGH>;
fsl,pull-up = <MXS_PULL_ENABLE>;
};
};
&pwm {
pinctrl-names = "default";
pinctrl-0 = <&pwm3_pins_a>;
status = "okay";
};
®_usb_5v {
gpio = <&gpio1 28 GPIO_ACTIVE_HIGH>;
};
&saif0 {
pinctrl-names = "default";
pinctrl-0 = <&saif0_pins_a>;
#sound-dai-cells = <0>;
assigned-clocks = <&clks 53>;
assigned-clock-rates = <12000000>;
status = "okay";
};
&saif1 {
pinctrl-names = "default";
pinctrl-0 = <&saif1_pins_a>;
#sound-dai-cells = <0>;
fsl,saif-master = <&saif0>;
status = "okay";
};
&ssp1 {
compatible = "fsl,imx28-mmc";
pinctrl-names = "default";
pinctrl-0 = <&ssp1_sdio_pins_a>;
bus-width = <4>;
no-1-8-v; /* force 3.3V VIO */
non-removable;
vmmc-supply = <®_3v3>;
mmc-pwrseq = <&wifi_pwrseq>;
keep-power-in-suspend;
status = "okay";
wifi@1 {
reg = <1>;
compatible = "brcm,bcm4329-fmac";
};
};
&ssp2 {
compatible = "fsl,imx28-spi";
pinctrl-names = "default";
pinctrl-0 = <&spi2_pins_a>;
status = "okay";
};
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2026-04-07
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