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// SPDX-License-Identifier: ISC
/*
* Device Tree file for ADI Engineering Coyote platform.
* Derived from boardfiles written by MontaVista software.
* Ethernet set-up from OpenWrt.
*/
/dts-v1/;
#include "intel-ixp42x.dtsi"
#include <dt-bindings/input/input.h>
/ {
model = "ADI Engineering Coyote reference design";
compatible = "adieng,coyote", "intel,ixp42x";
#address-cells = <1>;
#size-cells = <1>;
memory@0 {
/* CHECKME: 16 MB SDRAM minimum, maybe the Coyote actually has more */
device_type = "memory";
reg = <0x00000000 0x01000000>;
};
chosen {
bootargs = "console=ttyS0,115200n8 root=/dev/sda1 rw rootwait";
stdout-path = "uart1:115200n8";
};
aliases {
/* These are switched around */
serial0 = &uart1;
serial1 = &uart0;
};
soc {
bus@c4000000 {
flash@0,0 {
compatible = "intel,ixp4xx-flash", "cfi-flash";
bank-width = <2>;
/*
* 32 MB of Flash in 128 0x20000 sized blocks
* mapped in at CS0 and CS1
*/
reg = <0 0x00000000 0x2000000>;
/* 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 = <0x1ff>;
};
};
};
pci@c0000000 {
status = "okay";
/*
* Taken from Coyote PCI boardfile.
* We have slots (IDSEL) 1 and 2 with one assigned IRQ
* each handling all IRQs.
*/
#interrupt-cells = <1>;
interrupt-map-mask = <0xf800 0 0 7>;
interrupt-map =
/* IDSEL 1 */
<0x0800 0 0 1 &gpio0 6 IRQ_TYPE_LEVEL_LOW>, /* INT A on slot 1 is irq 6 */
<0x0800 0 0 2 &gpio0 6 IRQ_TYPE_LEVEL_LOW>, /* INT B on slot 1 is irq 6 */
<0x0800 0 0 3 &gpio0 6 IRQ_TYPE_LEVEL_LOW>, /* INT C on slot 1 is irq 6 */
<0x0800 0 0 4 &gpio0 6 IRQ_TYPE_LEVEL_LOW>, /* INT D on slot 1 is irq 6 */
/* IDSEL 2 */
<0x1000 0 0 1 &gpio0 11 IRQ_TYPE_LEVEL_LOW>, /* INT A on slot 2 is irq 11 */
<0x1000 0 0 2 &gpio0 11 IRQ_TYPE_LEVEL_LOW>, /* INT B on slot 2 is irq 11 */
<0x1000 0 0 3 &gpio0 11 IRQ_TYPE_LEVEL_LOW>, /* INT C on slot 2 is irq 11 */
<0x1000 0 0 4 &gpio0 11 IRQ_TYPE_LEVEL_LOW>; /* INT D on slot 2 is irq 11 */
};
/* EthB */
ethernet@c8009000 {
status = "okay";
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 = "okay";
queue-rx = <&qmgr 4>;
queue-txready = <&qmgr 21>;
phy-mode = "rgmii";
phy-handle = <&phy4>;
};
};
};
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