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// SPDX-License-Identifier: ISC
/*
* Device Tree file for Intel XScale Network Processors
* in the IXP 4xx series.
*/
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/gpio/gpio.h>
/ {
soc {
#address-cells = <1>;
#size-cells = <1>;
ranges;
compatible = "simple-bus";
interrupt-parent = <&intcon>;
/*
* The IXP4xx expansion bus is a set of 16 or 32MB
* windows in the 256MB space from 0x50000000 to
* 0x5fffffff.
*/
bus@50000000 {
compatible = "simple-bus";
#address-cells = <1>;
#size-cells = <1>;
ranges = <0x00000000 0x50000000 0x10000000>;
dma-ranges = <0x00000000 0x50000000 0x10000000>;
};
qmgr: queue-manager@60000000 {
compatible = "intel,ixp4xx-ahb-queue-manager";
reg = <0x60000000 0x4000>;
interrupts = <3 IRQ_TYPE_LEVEL_HIGH>, <4 IRQ_TYPE_LEVEL_HIGH>;
};
pci@c0000000 {
/* compatible filled in by per-soc device tree */
reg = <0xc0000000 0x1000>;
interrupts = <8 IRQ_TYPE_LEVEL_HIGH>,
<9 IRQ_TYPE_LEVEL_HIGH>,
<10 IRQ_TYPE_LEVEL_HIGH>;
#address-cells = <3>;
#size-cells = <2>;
device_type = "pci";
bus-range = <0x00 0xff>;
status = "disabled";
ranges =
/*
* 64MB 32bit non-prefetchable memory 0x48000000-0x4bffffff
* done in 4 chunks of 16MB each.
*/
<0x02000000 0 0x48000000 0x48000000 0 0x04000000>,
/* 64KB I/O space at 0x4c000000 */
<0x01000000 0 0x00000000 0x4c000000 0 0x00010000>;
/*
* This needs to map to the start of physical memory so
* PCI devices can see all (hopefully) memory. This is done
* using 4 1:1 16MB windows, so the RAM should not be more than
* 64 MB for this to work. If your memory is anywhere else
* than at 0x0 you need to alter this.
*/
dma-ranges =
<0x02000000 0 0x00000000 0x00000000 0 0x04000000>;
#interrupt-cells = <1>;
interrupt-map-mask = <0xf800 0 0 7>;
/* Each unique DTS using PCI must specify the swizzling */
};
uart0: serial@c8000000 {
compatible = "intel,xscale-uart";
reg = <0xc8000000 0x1000>;
/*
* The reg-offset and reg-shift is a side effect
* of running the platform in big endian mode.
*/
reg-offset = <3>;
reg-shift = <2>;
interrupts = <15 IRQ_TYPE_LEVEL_HIGH>;
clock-frequency = <14745600>;
no-loopback-test;
};
gpio0: gpio@c8004000 {
compatible = "intel,ixp4xx-gpio";
reg = <0xc8004000 0x1000>;
gpio-controller;
#gpio-cells = <2>;
interrupt-controller;
#interrupt-cells = <2>;
};
intcon: interrupt-controller@c8003000 {
/*
* Note: no compatible string. The subvariant of the
* chip needs to define what version it is. The
* location of the interrupt controller is fixed in
* memory across all variants.
*/
reg = <0xc8003000 0x100>;
interrupt-controller;
#interrupt-cells = <2>;
};
timer@c8005000 {
compatible = "intel,ixp4xx-timer";
reg = <0xc8005000 0x100>;
interrupts = <5 IRQ_TYPE_LEVEL_HIGH>;
};
npe: npe@c8006000 {
compatible = "intel,ixp4xx-network-processing-engine";
reg = <0xc8006000 0x1000>, <0xc8007000 0x1000>, <0xc8008000 0x1000>;
/* NPE-C contains a crypto accelerator */
crypto {
compatible = "intel,ixp4xx-crypto";
intel,npe-handle = <&npe 2>;
queue-rx = <&qmgr 30>;
queue-txready = <&qmgr 29>;
};
};
/* This is known as EthB */
ethernet@c8009000 {
compatible = "intel,ixp4xx-ethernet";
reg = <0xc8009000 0x1000>;
status = "disabled";
/* Dummy values that depend on firmware */
queue-rx = <&qmgr 3>;
queue-txready = <&qmgr 20>;
intel,npe-handle = <&npe 1>;
};
/* This is known as EthC */
ethernet@c800a000 {
compatible = "intel,ixp4xx-ethernet";
reg = <0xc800a000 0x1000>;
status = "disabled";
/* Dummy values that depend on firmware */
queue-rx = <&qmgr 0>;
queue-txready = <&qmgr 0>;
intel,npe-handle = <&npe 2>;
};
/* This is known as EthA */
ethernet@c800c000 {
compatible = "intel,ixp4xx-ethernet";
reg = <0xc800c000 0x1000>;
status = "disabled";
intel,npe = <0>;
/* Dummy values that depend on firmware */
queue-rx = <&qmgr 0>;
queue-txready = <&qmgr 0>;
};
};
};
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