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// SPDX-License-Identifier: ISC
/*
* Device Tree file for the Intel IXDPG425 reference design.
* Derived from boardfiles written by MontaVista software.
* Ethernet set-up from OpenWrt.
*
* The device has 4 x FXS RJ11 ports for analog phones for
* internet telephony. (Not supported yet.)
*
* The device has 9 status LEDs we do not support yet.
*
* This device is very similar to ADI engingeering Coyote.
*/
/dts-v1/;
#include "intel-ixp42x.dtsi"
#include <dt-bindings/input/input.h>
/ {
model = "Intel IXDPG425 reference design";
compatible = "intel,ixdpg425", "intel,ixp42x";
#address-cells = <1>;
#size-cells = <1>;
memory@0 {
/* 32 MB SDRAM */
device_type = "memory";
reg = <0x00000000 0x02000000>;
};
chosen {
bootargs = "console=ttyS0,115200n8 root=/dev/sda1 rw rootwait";
stdout-path = "uart0:115200n8";
};
aliases {
serial0 = &uart0;
};
soc {
bus@c4000000 {
flash@0,0 {
compatible = "intel,ixp4xx-flash", "cfi-flash";
bank-width = <2>;
/*
* CHECKME: the product brief says 16MB in a flash
* socket.
*/
reg = <0 0x00000000 0x1000000>;
/* Configure expansion bus to allow writes */
intel,ixp4xx-eb-write-enable = <1>;
partitions {
compatible = "redboot-fis";
/* CHECKME: guess this is Redboot FIS */
fis-index-block = <0x7f>;
};
};
};
pci@c0000000 {
status = "ok";
/*
* Taken from IXDPG425 PCI boardfile.
* We have slots (IDSEL) 12, 13 and 14 with one assigned IRQ
* for 12 & 13 and one for 14.
*/
interrupt-map =
/* IDSEL 12 */
<0x6000 0 0 1 &gpio0 7 IRQ_TYPE_LEVEL_LOW>, /* INT A on slot 12 is irq 7 */
<0x6000 0 0 2 &gpio0 7 IRQ_TYPE_LEVEL_LOW>, /* INT B on slot 12 is irq 7 */
<0x6000 0 0 3 &gpio0 7 IRQ_TYPE_LEVEL_LOW>, /* INT C on slot 12 is irq 7 */
<0x6000 0 0 4 &gpio0 7 IRQ_TYPE_LEVEL_LOW>, /* INT D on slot 12 is irq 7 */
/* IDSEL 13 */
<0x6800 0 0 1 &gpio0 7 IRQ_TYPE_LEVEL_LOW>, /* INT A on slot 13 is irq 7 */
<0x6800 0 0 2 &gpio0 7 IRQ_TYPE_LEVEL_LOW>, /* INT B on slot 13 is irq 7 */
<0x6800 0 0 3 &gpio0 7 IRQ_TYPE_LEVEL_LOW>, /* INT C on slot 13 is irq 7 */
<0x6800 0 0 4 &gpio0 7 IRQ_TYPE_LEVEL_LOW>, /* INT D on slot 13 is irq 7 */
/* IDSEL 14 */
<0x7000 0 0 1 &gpio0 6 IRQ_TYPE_LEVEL_LOW>, /* INT A on slot 14 is irq 6 */
<0x7000 0 0 2 &gpio0 6 IRQ_TYPE_LEVEL_LOW>, /* INT B on slot 14 is irq 6 */
<0x7000 0 0 3 &gpio0 6 IRQ_TYPE_LEVEL_LOW>, /* INT C on slot 14 is irq 6 */
<0x7000 0 0 4 &gpio0 6 IRQ_TYPE_LEVEL_LOW>; /* INT D on slot 14 is irq 6 */
};
/*
* CHECKME: this ethernet setup seems dubious. Photos of the board shows some kind
* of Realtek DSA switch on the board.
*/
/* EthB */
ethernet@c8009000 {
status = "ok";
queue-rx = <&qmgr 3>;
queue-txready = <&qmgr 20>;
phy-mode = "rgmii";
phy-handle = <&phy5>;
mdio {
#address-cells = <1>;
#size-cells = <0>;
phy4: ethernet-phy@4 {
reg = <4>;
};
phy5: ethernet-phy@5 {
reg = <5>;
};
};
};
/* EthC */
ethernet@c800a000 {
status = "ok";
queue-rx = <&qmgr 4>;
queue-txready = <&qmgr 21>;
phy-mode = "rgmii";
phy-handle = <&phy4>;
};
};
};
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