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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 = "ok";
- /*
- * 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 = "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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