The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)

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FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/src/arm64/microchip/sparx5_pcb134_emmc.dts

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    1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
    2 /*
    3  * Copyright (c) 2020 Microchip Technology Inc. and its subsidiaries.
    4  */
    5 
    6 /dts-v1/;
    7 #include "sparx5_pcb134_board.dtsi"
    8 
    9 / {
   10         model = "Sparx5 PCB134 Reference Board (eMMC enabled)";
   11         compatible = "microchip,sparx5-pcb134", "microchip,sparx5";
   12 
   13         memory@0 {
   14                 device_type = "memory";
   15                 reg = <0x00000000 0x00000000 0x10000000>;
   16         };
   17 };
   18 
   19 &gpio {
   20         emmc_pins: emmc-pins {
   21                 /* NB: No "GPIO_35", "GPIO_36", "GPIO_37"
   22                  * (N/A: CARD_nDETECT, CARD_WP, CARD_LED)
   23                  */
   24                 pins = "GPIO_34", "GPIO_38", "GPIO_39",
   25                         "GPIO_40", "GPIO_41", "GPIO_42",
   26                         "GPIO_43", "GPIO_44", "GPIO_45",
   27                         "GPIO_46", "GPIO_47";
   28                 drive-strength = <3>;
   29                 function = "emmc";
   30         };
   31 };
   32 
   33 &sdhci0 {
   34         status = "okay";
   35         pinctrl-0 = <&emmc_pins>;
   36         non-removable;
   37         max-frequency = <52000000>;
   38         bus-width = <8>;
   39         microchip,clock-delay = <10>;
   40 };

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