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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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50408b7def
This device tree does not provide the correct CPU name, as various CPU models and revisions are used in AmigaOnes. Also the PCI root node does not contain a interrupt mapping property, as all boards have different interrupt routing. However the kernel can do a 1:1 mapping of all PCI interrupts, as only i8259 legacy interrupts are used. Signed-off-by: Gerhard Pircher <gerhard_pircher@gmx.net> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
174 lines
4.1 KiB
Plaintext
174 lines
4.1 KiB
Plaintext
/*
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* AmigaOne Device Tree Source
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*
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* Copyright 2008 Gerhard Pircher (gerhard_pircher@gmx.net)
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*/
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/dts-v1/;
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/ {
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model = "AmigaOne";
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compatible = "eyetech,amigaone";
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coherency-off;
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#address-cells = <1>;
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#size-cells = <1>;
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cpus {
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#cpus = <1>;
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#address-cells = <1>;
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#size-cells = <0>;
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cpu@0 {
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device_type = "cpu";
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reg = <0>;
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d-cache-line-size = <32>; // 32 bytes
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i-cache-line-size = <32>; // 32 bytes
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d-cache-size = <32768>; // L1, 32K
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i-cache-size = <32768>; // L1, 32K
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timebase-frequency = <0>; // 33.3 MHz, from U-boot
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clock-frequency = <0>; // From U-boot
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bus-frequency = <0>; // From U-boot
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};
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};
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memory {
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device_type = "memory";
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reg = <0 0>; // From U-boot
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};
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pci@80000000 {
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device_type = "pci";
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compatible = "mai-logic,articia-s";
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bus-frequency = <33333333>;
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bus-range = <0 0xff>;
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ranges = <0x01000000 0 0x00000000 0xfe000000 0 0x00c00000 // PCI I/O
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0x02000000 0 0x80000000 0x80000000 0 0x7d000000 // PCI memory
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0x02000000 0 0x00000000 0xfd000000 0 0x01000000>; // PCI alias memory (ISA)
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// Configuration address and data register.
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reg = <0xfec00cf8 4
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0xfee00cfc 4>;
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8259-interrupt-acknowledge = <0xfef00000>;
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// Do not define a interrupt-parent here, if there is no
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// interrupt-map property.
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#address-cells = <3>;
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#size-cells = <2>;
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isa@7 {
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device_type = "isa";
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compatible = "pciclass,0601";
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vendor-id = <0x00001106>;
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device-id = <0x00000686>;
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revision-id = <0x00000010>;
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class-code = <0x00060100>;
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subsystem-id = <0>;
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subsystem-vendor-id = <0>;
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devsel-speed = <0x00000001>;
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min-grant = <0>;
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max-latency = <0>;
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/* First 64k for I/O at 0x0 on PCI mapped to 0x0 on ISA. */
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ranges = <0x00000001 0 0x01000000 0 0x00000000 0x00010000>;
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interrupt-parent = <&i8259>;
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#interrupt-cells = <2>;
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#address-cells = <2>;
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#size-cells = <1>;
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dma-controller@0 {
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compatible = "pnpPNP,200";
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reg = <1 0x00000000 0x00000020
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1 0x00000080 0x00000010
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1 0x000000c0 0x00000020>;
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};
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i8259: interrupt-controller@20 {
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device_type = "interrupt-controller";
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compatible = "pnpPNP,000";
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interrupt-controller;
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reg = <1 0x00000020 0x00000002
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1 0x000000a0 0x00000002
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1 0x000004d0 0x00000002>;
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reserved-interrupts = <2>;
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#interrupt-cells = <2>;
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};
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timer@40 {
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// Also adds pcspkr to platform devices.
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compatible = "pnpPNP,100";
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reg = <1 0x00000040 0x00000020>;
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};
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8042@60 {
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device_type = "8042";
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reg = <1 0x00000060 0x00000001
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1 0x00000064 0x00000001>;
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interrupts = <1 3 12 3>;
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#address-cells = <1>;
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#size-cells = <0>;
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keyboard@0 {
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compatible = "pnpPNP,303";
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reg = <0>;
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};
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mouse@1 {
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compatible = "pnpPNP,f03";
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reg = <1>;
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};
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};
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rtc@70 {
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compatible = "pnpPNP,b00";
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reg = <1 0x00000070 0x00000002>;
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interrupts = <8 3>;
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};
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serial@3f8 {
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device_type = "serial";
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compatible = "pnpPNP,501","pnpPNP,500";
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reg = <1 0x000003f8 0x00000008>;
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interrupts = <4 3>;
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clock-frequency = <1843200>;
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current-speed = <115200>;
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};
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serial@2f8 {
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device_type = "serial";
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compatible = "pnpPNP,501","pnpPNP,500";
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reg = <1 0x000002f8 0x00000008>;
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interrupts = <3 3>;
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clock-frequency = <1843200>;
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current-speed = <115200>;
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};
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parallel@378 {
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device_type = "parallel";
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// No ECP support for now, otherwise add "pnpPNP,401".
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compatible = "pnpPNP,400";
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reg = <1 0x00000378 0x00000003
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1 0x00000778 0x00000003>;
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};
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fdc@3f0 {
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device_type = "fdc";
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compatible = "pnpPNP,700";
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reg = <1 0x000003f0 0x00000008>;
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interrupts = <6 3>;
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#address-cells = <1>;
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#size-cells = <0>;
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disk@0 {
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reg = <0>;
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};
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};
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};
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};
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chosen {
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linux,stdout-path = "/pci@80000000/isa@7/serial@3f8";
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};
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};
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