Hi,
I updated the AmigaOne device tree based on the comments in this thread:
http://ozlabs.org/pipermail/linuxppc-dev/2007-June/038069.html
All the ISA devices are now subnodes of the PCI2ISA bridge, which marks
the first 64k (of PCI address space) as I/O space. The pci node doesn't
contain any interrupt routing information, because interrupt routing
differs between the three AmigaOne models. Thus I would like to omit it,
if it is not really necessary. The PCI host for bus 0 is a subnode of
the pci node, but I'm not sure if this is correct.
Please take a look at the reg and ranges properties of the PCI devices.
The PCI OF spec defined "zero" reg properties (like
reg = <00xxxx00 00000000 00000000 00000000 00000000>, where xxxx is
the device number), even if all the other BARs are defined. What are
they good for?
The BARs of the VIA IDE controller are assumed to be relocateable,
even if the address is fixed in compatibility mode.
BTW: Is there a way to specify the addresses for PCI config with
indirect addressing?
Thanks!
regards,
Gerhard
/*
* AmigaOne Device Tree Source
*
* Copyright 2007 Gerhard Pircher ([EMAIL PROTECTED])
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*/
/ {
model = "Eyetech,AmigaOne";
compatible = "Eyetech,AmigaOne" "MAI,Teron";
#address-cells = <1>;
#size-cells = <1>;
cpus {
#address-cells = <1>;
#size-cells = <0>;
[EMAIL PROTECTED] {
device_type = "cpu";
reg = <0>;
d-cache-line-size = <20>; // 32 bytes
i-cache-line-size = <20>; // 32 bytes
d-cache-size = <8000>; // L1, 32K
i-cache-size = <8000>; // L1, 32K
timebase-frequency = <0>; // 33.3 MHz, from U-boot
clock-frequency = <0>; // From U-boot
bus-frequency = <0>; // From U-boot
32-bit;
};
};
memory {
device_type = "memory";
reg = <0 0>; // From U-boot
};
[EMAIL PROTECTED] {
device_type = "pci";
bus-frequency = <01fca055>; // 33.3MHz
bus-range = <0 1>;
reg = <80000000 7f000000>; //
Whole PCI space.
ranges = <01000000 0 00000000 fe000000 0 00c00000 // PCI
I/O
02000000 0 80000000 80000000 0 7d000000 // PCI
memory
02000000 0 fd000000 fd000000 0 01000000>; // PCI
alias memory
8259-interrupt-acknowledge = <fef00000>;
#address-cells = <3>;
#size-cells = <2>;
[EMAIL PROTECTED] {
vendor-id = 0x000010cc;
device-id = 0x00000660;
revision-id = 0x00000001;
class-code = 0x00060000;
subsystem-id = 0x00000000;
subsystem-vendor-id = 0x00000000;
devsel-speed = 0x00000001;
66mhz-capable;
min-grant = 0x00000000;
max-latency = 0x00000000;
// AGP aperture is unset.
reg = <42000010 0 00000000 0 00400000>;
assigned-addresses = <42000010 0 00000000 0 00400000>;
}
[EMAIL PROTECTED] {
device_type = "isa";
vendor-id = 0x00001106;
device-id = 0x00000686;
revision-id = 0x00000010;
class-code = 0x00060100;
subsystem-id = 0x00000000;
subsystem-vendor-id = 0x00000000;
devsel-speed = 0x00000001;
min-grant = 0x00000000;
max-latency = 0x00000000;
/* First 64k for I/O at 0x0 on PCI mapped to 0x0 on
ISA. */
ranges = <00000001 0 01000000 0 00000000 00010000>;
interrupt-parent = <&/[EMAIL PROTECTED]/[EMAIL
PROTECTED]/interrupt-controller>;
#interrupt-cells = <2>;
#address-cells = <2>;
#size-cells = <1>;
dma-controller {
device_type = "dma-controller";
compatible = "pnpPNP,200";
reg = <00000001 00000000 00000010
00000001 00000080 00000010
00000001 000000c0 00000020>;
/* Channel 4 reserverd, cascade mode, 2x32k
transfer/counter
* widths and bus master capability. Is this
really necessary?
*/
/* dma = <4 4 20 20 1>; */
};
interrupt-controller {
device_type = "interrupt-controller";
compatible = "pnpPNP,000";
interrupt-controller;
reg = <00000001 00000020 00000002
00000001 000000a0 00000002
00000001 000004d0 00000002>;
reserved-interrupts = <2>;
};
[EMAIL PROTECTED] {
device_type = "8042";
compatible = "pnpPNP,303";
reg = <00000001 00000060 00000010>;
interrupts = <1 3 c 3>; //
IRQ1, IRQ12 (rising edge)
keyboard {
device_type = "keyboard";
compatible = "pnpPNP,303"; // Here
again?
reg = <0 0 0>;
};
mouse {
device_type = "mouse";
compatible = "pnpPNP,f03";
reg = <0 0 0>;
};
};
[EMAIL PROTECTED] {
/* device_type = "timer"; */ // No
device type binding for now.
compatibe = "pnpPNP,100"; // Also
add pcspkr to platform devices.
reg = <00000001 00000040 00000020>;
};
[EMAIL PROTECTED] {
device_type = "rtc";
compatible = "pnpPNP,b00"; //
<ds1385-rtc>; // What should be used here?
reg = <00000001 00000070 00000002>;
interrupts = <8 3>;
};
[EMAIL PROTECTED] {
device_type = "serial";
compatible = "pnpPNP,501" "pnpPNP,500"; //
"ns16550"; add property check to OF serial code.
reg = <00000001 000002f8 00000008>;
interrupts = <3 3>; // IRQ3
(rising edge)
clock-frequency = <0>; // Not
necessary?
};
[EMAIL PROTECTED] {
device_type = "serial";
compatible = "pnpPNP,501" "pnpPNP,500"; //
"ns16550"; add property check to OF serial code.
reg = <00000001 000003f8 00000008>;
interrupts = <4 3>; // IRQ4
(rising edge)
clock-frequency = <0>; // Not
necessary?
};
[EMAIL PROTECTED] {
device_type = "parallel";
compatible = "pnpPNP,400"; //
"pnpPNP,401" // No ECP support for now.
reg = <00000001 00000378 00000003
00000001 00000778 00000003>;
/* interrupts = <7>; */ // No
IRQ free on AmigaOne!
/* dma = <3 0 0 0>; */ //
Parallel port DMA mode?
};
[EMAIL PROTECTED] {
device_type = "fdc";
compatible = "pnpPNP,700";
reg = <00000001 000003f0 00000008>;
interrupts = <6 3>; // IRQ6
(rising edge)
/* dma = < >; */ //
Floppy DMA mode?
[EMAIL PROTECTED] {
device_type = "block";
reg = <0 0 0>;
};
};
};
[EMAIL PROTECTED],1 {
// Is there a device_type defined for IDE controllers?
vendor-id = 0x00001106;
device-id = 0x00000571;
revision-id = 0x00000006;
// Class code with PCI IDE programming interface
indicator.
class-code = 0x0001018f;
subsystem-id = 0;
subsystem-vendor-id = 0;
devsel-speed = 0x00000001;
min-grant = 0;
max-latency = 0;
fast-back-to-back;
// Assume base addresses are relocateable, even if
// controller operates in compatibility mode. Right?
reg = <21003910 0 00000000 0 00000000
21003914 0 00000000 0 00000000
21003918 0 00000000 0 00000000
2100391c 0 00000000 0 00000000
21003920 0 00000000 0 00000000>;
assigned-addresses = <01003910 0 000001f0 0 00000008
01003914 0 000003f4 0 00000004
01003918 0 00000170 0 00000008
0100391c 0 00000374 0 00000004
01003920 0 0000cc00 0 00000010>;
};
chosen {
linux,stdout-path = "/[EMAIL PROTECTED]/[EMAIL
PROTECTED]/[EMAIL PROTECTED]";
};
};
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