arm64/microchip/sparx5_pcb134_emmc.dts

0001 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
0002 /*
0003  * Copyright (c) 2020 Microchip Technology Inc. and its subsidiaries.
0004  */
0005
0006 /dts-v1/;
0007 #include "sparx5_pcb134_board.dtsi"
0008
0009 / {
0010         model = "Sparx5 PCB134 Reference Board (eMMC enabled)";
0011         compatible = "microchip,sparx5-pcb134", "microchip,sparx5";
0012
0013         memory@0 {
0014                 device_type = "memory";
0015                 reg = <0x00000000 0x00000000 0x10000000>;
0016         };
0017 };
0018
0019 &gpio {
0020         emmc_pins: emmc-pins {
0021                 /* NB: No "GPIO_35", "GPIO_36", "GPIO_37"
0022                  * (N/A: CARD_nDETECT, CARD_WP, CARD_LED)
0023                  */
0024                 pins = "GPIO_34", "GPIO_38", "GPIO_39",
0025                         "GPIO_40", "GPIO_41", "GPIO_42",
0026                         "GPIO_43", "GPIO_44", "GPIO_45",
0027                         "GPIO_46", "GPIO_47";
0028                 drive-strength = <3>;
0029                 function = "emmc";
0030         };
0031 };
0032
0033 &sdhci0 {
0034         status = "okay";
0035         pinctrl-0 = <&emmc_pins>;
0036         non-removable;
0037         max-frequency = <52000000>;
0038         bus-width = <8>;
0039         microchip,clock-delay = <10>;
0040 };