1// SPDX-License-Identifier: ISC
  2/*
  3 * Device Tree file for ADI Engineering Coyote platform.
  4 * Derived from boardfiles written by MontaVista software.
  5 * Ethernet set-up from OpenWrt.
  6 */
  7
  8/dts-v1/;
  9
 10#include "intel-ixp42x.dtsi"
 11#include <dt-bindings/input/input.h>
 12
 13/ {
 14	model = "ADI Engineering Coyote reference design";
 15	compatible = "adieng,coyote", "intel,ixp42x";
 16	#address-cells = <1>;
 17	#size-cells = <1>;
 18
 19	memory@0 {
 20		/* CHECKME: 16 MB SDRAM minimum, maybe the Coyote actually has more */
 21		device_type = "memory";
 22		reg = <0x00000000 0x01000000>;
 23	};
 24
 25	chosen {
 26		bootargs = "console=ttyS0,115200n8 root=/dev/sda1 rw rootwait";
 27		stdout-path = "uart1:115200n8";
 28	};
 29
 30	aliases {
 31		/* These are switched around */
 32		serial0 = &uart1;
 33		serial1 = &uart0;
 34	};
 35
 36	soc {
 37		bus@c4000000 {
 38			flash@0,0 {
 39				compatible = "intel,ixp4xx-flash", "cfi-flash";
 40				bank-width = <2>;
 41				/*
 42				 * 32 MB of Flash in 128 0x20000 sized blocks
 43				 * mapped in at CS0 and CS1
 44				 */
 45				reg = <0 0x00000000 0x2000000>;
 46
 47				/* Configure expansion bus to allow writes */
 48				intel,ixp4xx-eb-write-enable = <1>;
 49
 50				partitions {
 51					compatible = "redboot-fis";
 52					/* CHECKME: guess this is Redboot FIS */
 53					fis-index-block = <0x1ff>;
 54				};
 55			};
 56		};
 57
 58		pci@c0000000 {
 59			status = "ok";
 60
 61			/*
 62			 * Taken from Coyote PCI boardfile.
 63			 * We have slots (IDSEL) 1 and 2 with one assigned IRQ
 64			 * each handling all IRQs.
 65			 */
 66			#interrupt-cells = <1>;
 67			interrupt-map-mask = <0xf800 0 0 7>;
 68			interrupt-map =
 69			/* IDSEL 1 */
 70			<0x0800 0 0 1 &gpio0 6 IRQ_TYPE_LEVEL_LOW>, /* INT A on slot 1 is irq 6 */
 71			<0x0800 0 0 2 &gpio0 6 IRQ_TYPE_LEVEL_LOW>, /* INT B on slot 1 is irq 6 */
 72			<0x0800 0 0 3 &gpio0 6 IRQ_TYPE_LEVEL_LOW>, /* INT C on slot 1 is irq 6 */
 73			<0x0800 0 0 4 &gpio0 6 IRQ_TYPE_LEVEL_LOW>, /* INT D on slot 1 is irq 6 */
 74			/* IDSEL 2 */
 75			<0x1000 0 0 1 &gpio0 11 IRQ_TYPE_LEVEL_LOW>, /* INT A on slot 2 is irq 11 */
 76			<0x1000 0 0 2 &gpio0 11 IRQ_TYPE_LEVEL_LOW>, /* INT B on slot 2 is irq 11 */
 77			<0x1000 0 0 3 &gpio0 11 IRQ_TYPE_LEVEL_LOW>, /* INT C on slot 2 is irq 11 */
 78			<0x1000 0 0 4 &gpio0 11 IRQ_TYPE_LEVEL_LOW>; /* INT D on slot 2 is irq 11 */
 79		};
 80
 81		/* EthB */
 82		ethernet@c8009000 {
 83			status = "ok";
 84			queue-rx = <&qmgr 3>;
 85			queue-txready = <&qmgr 20>;
 86			phy-mode = "rgmii";
 87			phy-handle = <&phy5>;
 88
 89			mdio {
 90				#address-cells = <1>;
 91				#size-cells = <0>;
 92
 93				phy4: ethernet-phy@4 {
 94					reg = <4>;
 95				};
 96
 97				phy5: ethernet-phy@5 {
 98					reg = <5>;
 99				};
100			};
101		};
102
103		/* EthC */
104		ethernet@c800a000 {
105			status = "ok";
106			queue-rx = <&qmgr 4>;
107			queue-txready = <&qmgr 21>;
108			phy-mode = "rgmii";
109			phy-handle = <&phy4>;
110		};
111	};
112};