arch/arm64/boot/dts/amlogic/amlogic-t7-a311d2-khadas-vim4.dts

   1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
   2 /*
   3  * Copyright (c) 2022 Wesion, Inc. All rights reserved.
   4  */
   5
   6 /dts-v1/;
   7
   8 #include "amlogic-t7.dtsi"
   9
  10 / {
  11         model = "Khadas vim4";
  12         compatible = "khadas,vim4", "amlogic,a311d2", "amlogic,t7";
  13
  14         aliases {
  15                 serial0 = &uart_a;
  16         };
  17
  18         memory@0 {
  19                 device_type = "memory";
  20                 reg = <0x0 0x0 0x2 0x0>; /* 8 GB */
  21         };
  22
  23         reserved-memory {
  24                 #address-cells = <2>;
  25                 #size-cells = <2>;
  26                 ranges;
  27
  28                 /* 3 MiB reserved for ARM Trusted Firmware (BL31) */
  29                 secmon_reserved: secmon@5000000 {
  30                         reg = <0x0 0x05000000 0x0 0x300000>;
  31                         no-map;
  32                 };
  33
  34                 /* 32 MiB reserved for ARM Trusted Firmware (BL32) */
  35                 secmon_reserved_bl32: secmon@5300000 {
  36                         reg = <0x0 0x05300000 0x0 0x2000000>;
  37                         no-map;
  38                 };
  39         };
  40
  41         xtal: xtal-clk {
  42                 compatible = "fixed-clock";
  43                 clock-frequency = <24000000>;
  44                 clock-output-names = "xtal";
  45                 #clock-cells = <0>;
  46         };
  47
  48 };
  49
  50 &uart_a {
  51         status = "okay";
  52         clocks = <&xtal>, <&xtal>, <&xtal>;
  53         clock-names = "xtal", "pclk", "baud";
  54 };