target/linux/mediatek/files-6.6/arch/arm64/boot/dts/mediatek/mt7988a-bananapi-bpi-r4-emmc.dtso

   1 // SPDX-License-Identifier: (GPL-2.0 OR MIT)
   2 /*
   3  * Copyright (C) 2021 MediaTek Inc.
   4  * Author: Frank Wunderlich <frank-w@public-files.de>
   5  */
   6
   7 /dts-v1/;
   8 /plugin/;
   9
  10 / {
  11         compatible = "bananapi,bpi-r4", "mediatek,mt7988a";
  12
  13         fragment@0 {
  14                 target-path = "/soc/mmc@11230000";
  15                 __overlay__ {
  16                         pinctrl-names = "default", "state_uhs";
  17                         pinctrl-0 = <&mmc0_pins_emmc_51>;
  18                         pinctrl-1 = <&mmc0_pins_emmc_51>;
  19                         bus-width = <8>;
  20                         max-frequency = <200000000>;
  21                         cap-mmc-highspeed;
  22                         mmc-hs200-1_8v;
  23                         mmc-hs400-1_8v;
  24                         hs400-ds-delay = <0x12814>;
  25                         vqmmc-supply = <&reg_1p8v>;
  26                         vmmc-supply = <&reg_3p3v>;
  27                         non-removable;
  28                         no-sd;
  29                         no-sdio;
  30                         status = "okay";
  31                         #address-cells = <1>;
  32                         #size-cells = <0>;
  33
  34                         card@0 {
  35                                 compatible = "mmc-card";
  36                                 reg = <0>;
  37
  38                                 block {
  39                                         compatible = "block-device";
  40                                         partitions {
  41                                                 block-partition-env {
  42                                                         partname = "ubootenv";
  43                                                         nvmem-layout {
  44                                                                 compatible = "u-boot,env-layout";
  45                                                         };
  46                                                 };
  47                                                 emmc_rootfs: block-partition-production {
  48                                                         partname = "production";
  49                                                 };
  50                                         };
  51                                 };
  52                         };
  53                 };
  54         };
  55
  56         fragment@2 {
  57                 target-path = "/chosen";
  58                 __overlay__ {
  59                         rootdisk-emmc = <&emmc_rootfs>;
  60                 };
  61         };
  62 };