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linux/arch/powerpc/boot/dts/mpc885ads.dts
Scott Wood 15f8c604a7 [POWERPC] cpm: Describe multi-user ram in its own device node.
The way the current CPM binding describes available multi-user (a.k.a.
dual-ported) RAM doesn't work well when there are multiple free regions,
and it doesn't work at all if the region doesn't begin at the start of
the muram area (as the hardware needs to be programmed with offsets into
this area).  The latter situation can happen with SMC UARTs on CPM2, as its
parameter RAM is relocatable, u-boot puts it at zero, and the kernel doesn't
support moving it.

It is now described with a muram node, similar to QE.  The current CPM
binding is sufficiently recent (i.e. never appeared in an official release)
that compatibility with existing device trees is not an issue.

The code supporting the new binding is shared between cpm1 and cpm2, rather
than remain separated.  QE should be able to use this code as well, once
minor fixes are made to its device trees.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-10-04 15:47:05 -05:00

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/*
* MPC885 ADS Device Tree Source
*
* Copyright 2006 MontaVista Software, Inc.
* Copyright 2007 Freescale Semiconductor, Inc.
*
* 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 = "MPC885ADS";
compatible = "fsl,mpc885ads";
#address-cells = <1>;
#size-cells = <1>;
cpus {
#address-cells = <1>;
#size-cells = <0>;
PowerPC,885@0 {
device_type = "cpu";
reg = <0>;
d-cache-line-size = <d#16>;
i-cache-line-size = <d#16>;
d-cache-size = <d#8192>;
i-cache-size = <d#8192>;
timebase-frequency = <0>;
bus-frequency = <0>;
clock-frequency = <0>;
interrupts = <f 2>; // decrementer interrupt
interrupt-parent = <&PIC>;
};
};
memory {
device_type = "memory";
reg = <0 0>;
};
localbus@ff000100 {
compatible = "fsl,mpc885-localbus", "fsl,pq1-localbus";
#address-cells = <2>;
#size-cells = <1>;
reg = <ff000100 40>;
ranges = <
0 0 fe000000 00800000
1 0 ff080000 00008000
5 0 ff0a0000 00008000
>;
flash@0,0 {
compatible = "jedec-flash";
reg = <0 0 800000>;
bank-width = <4>;
device-width = <1>;
};
board-control@1,0 {
reg = <1 0 20 5 300 4>;
compatible = "fsl,mpc885ads-bcsr";
};
};
soc@ff000000 {
compatible = "fsl,mpc885", "fsl,pq1-soc";
#address-cells = <1>;
#size-cells = <1>;
device_type = "soc";
ranges = <0 ff000000 00004000>;
bus-frequency = <0>;
// Temporary -- will go away once kernel uses ranges for get_immrbase().
reg = <ff000000 4000>;
mdio@e00 {
compatible = "fsl,mpc885-fec-mdio", "fsl,pq1-fec-mdio";
reg = <e00 188>;
#address-cells = <1>;
#size-cells = <0>;
PHY0: ethernet-phy@0 {
reg = <0>;
device_type = "ethernet-phy";
};
PHY1: ethernet-phy@1 {
reg = <1>;
device_type = "ethernet-phy";
};
PHY2: ethernet-phy@2 {
reg = <2>;
device_type = "ethernet-phy";
};
};
ethernet@e00 {
device_type = "network";
compatible = "fsl,mpc885-fec-enet",
"fsl,pq1-fec-enet";
reg = <e00 188>;
local-mac-address = [ 00 00 00 00 00 00 ];
interrupts = <3 1>;
interrupt-parent = <&PIC>;
phy-handle = <&PHY0>;
linux,network-index = <0>;
};
ethernet@1e00 {
device_type = "network";
compatible = "fsl,mpc885-fec-enet",
"fsl,pq1-fec-enet";
reg = <1e00 188>;
local-mac-address = [ 00 00 00 00 00 00 ];
interrupts = <7 1>;
interrupt-parent = <&PIC>;
phy-handle = <&PHY1>;
linux,network-index = <1>;
};
PIC: interrupt-controller@0 {
interrupt-controller;
#interrupt-cells = <2>;
reg = <0 24>;
compatible = "fsl,mpc885-pic", "fsl,pq1-pic";
};
pcmcia@80 {
#address-cells = <3>;
#interrupt-cells = <1>;
#size-cells = <2>;
compatible = "fsl,pq-pcmcia";
device_type = "pcmcia";
reg = <80 80>;
interrupt-parent = <&PIC>;
interrupts = <d 1>;
};
cpm@9c0 {
#address-cells = <1>;
#size-cells = <1>;
compatible = "fsl,mpc885-cpm", "fsl,cpm1";
command-proc = <9c0>;
interrupts = <0>; // cpm error interrupt
interrupt-parent = <&CPM_PIC>;
reg = <9c0 40>;
ranges;
muram@2000 {
#address-cells = <1>;
#size-cells = <1>;
ranges = <0 2000 2000>;
data@0 {
compatible = "fsl,cpm-muram-data";
reg = <0 1c00>;
};
};
brg@9f0 {
compatible = "fsl,mpc885-brg",
"fsl,cpm1-brg",
"fsl,cpm-brg";
reg = <9f0 10>;
};
CPM_PIC: interrupt-controller@930 {
interrupt-controller;
#interrupt-cells = <1>;
interrupts = <5 2 0 2>;
interrupt-parent = <&PIC>;
reg = <930 20>;
compatible = "fsl,mpc885-cpm-pic",
"fsl,cpm1-pic";
};
serial@a80 {
device_type = "serial";
compatible = "fsl,mpc885-smc-uart",
"fsl,cpm1-smc-uart";
reg = <a80 10 3e80 40>;
interrupts = <4>;
interrupt-parent = <&CPM_PIC>;
fsl,cpm-brg = <1>;
fsl,cpm-command = <0090>;
};
serial@a90 {
device_type = "serial";
compatible = "fsl,mpc885-smc-uart",
"fsl,cpm1-smc-uart";
reg = <a90 10 3f80 40>;
interrupts = <3>;
interrupt-parent = <&CPM_PIC>;
fsl,cpm-brg = <2>;
fsl,cpm-command = <00d0>;
};
ethernet@a40 {
device_type = "network";
compatible = "fsl,mpc885-scc-enet",
"fsl,cpm1-scc-enet";
reg = <a40 18 3e00 100>;
local-mac-address = [ 00 00 00 00 00 00 ];
interrupts = <1c>;
interrupt-parent = <&CPM_PIC>;
phy-handle = <&PHY2>;
fsl,cpm-command = <0080>;
linux,network-index = <2>;
};
};
};
chosen {
linux,stdout-path = "/soc/cpm/serial@a80";
};
};