target/linux/mediatek/files-6.1/arch/arm64/boot/dts/mediatek/mt7988a-bananapi-bpi-r4-sd.dtso

   1 // SPDX-License-Identifier: (GPL-2.0 OR MIT)
   2 /*
   3  * Copyright (C) 2023 MediaTek Inc.
   4  * Author: Frank Wunderlich <frank-w@public-files.de>
   5  */
   6
   7 /dts-v1/;
   8 /plugin/;
   9
  10 #include <dt-bindings/gpio/gpio.h>
  11
  12 / {
  13         compatible = "bananapi,bpi-r4", "mediatek,mt7988a";
  14
  15         fragment@1 {
  16                 target-path = "/soc/mmc@11230000";
  17                 __overlay__ {
  18                         pinctrl-names = "default", "state_uhs";
  19                         pinctrl-0 = <&mmc0_pins_sdcard>;
  20                         pinctrl-1 = <&mmc0_pins_sdcard>;
  21                         cd-gpios = <&pio 12 GPIO_ACTIVE_LOW>;
  22                         bus-width = <4>;
  23                         max-frequency = <52000000>;
  24                         cap-sd-highspeed;
  25                         vmmc-supply = <&reg_3p3v>;
  26                         vqmmc-supply = <&reg_3p3v>;
  27                         no-mmc;
  28                         status = "okay";
  29                         #address-cells = <1>;
  30                         #size-cells = <0>;
  31
  32                         card@0 {
  33                                 compatible = "mmc-card";
  34                                 reg = <0>;
  35
  36                                 block {
  37                                         compatible = "block-device";
  38                                         partitions {
  39                                                 block-partition-env {
  40                                                         partname = "ubootenv";
  41                                                         nvmem-layout {
  42                                                                 compatible = "u-boot,env-layout";
  43                                                         };
  44                                                 };
  45                                                 sd_rootfs: block-partition-production {
  46                                                         partname = "production";
  47                                                 };
  48                                         };
  49                                 };
  50                         };
  51                 };
  52         };
  53
  54         fragment@2 {
  55                 target-path = "/chosen";
  56                 __overlay__ {
  57                         rootdisk-sd = <&sd_rootfs>;
  58                 };
  59         };
  60 };