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- // SPDX-License-Identifier: ISC
- /*
- * Device Tree file for the Gateworks Avila GW2348 board.
- * This machine is based on IXP425.
- */
- /dts-v1/;
- #include "intel-ixp42x.dtsi"
- #include <dt-bindings/input/input.h>
- / {
- model = "Gateworks Avila GW2348";
- compatible = "gateworks,gw2348", "intel,ixp42x";
- #address-cells = <1>;
- #size-cells = <1>;
- memory@0 {
- device_type = "memory";
- reg = <0x00000000 0x4000000>;
- };
- chosen {
- bootargs = "console=ttyS0,115200n8";
- stdout-path = "uart0:115200n8";
- };
- aliases {
- serial0 = &uart0;
- };
- leds {
- compatible = "gpio-leds";
- led-user {
- label = "gw2348:green:user";
- gpios = <&gpio0 3 GPIO_ACTIVE_LOW>;
- default-state = "on";
- linux,default-trigger = "heartbeat";
- };
- };
- i2c {
- compatible = "i2c-gpio";
- sda-gpios = <&gpio0 7 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>;
- scl-gpios = <&gpio0 6 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>;
- #address-cells = <1>;
- #size-cells = <0>;
- hwmon@28 {
- compatible = "adi,ad7418";
- reg = <0x28>;
- };
- rtc: ds1672@68 {
- compatible = "dallas,ds1672";
- reg = <0x68>;
- };
- eeprom@51 {
- compatible = "atmel,24c08";
- reg = <0x51>;
- pagesize = <16>;
- size = <1024>;
- read-only;
- };
- };
- soc {
- bus@c4000000 {
- flash@0,0 {
- compatible = "intel,ixp4xx-flash", "cfi-flash";
- bank-width = <2>;
- /* Enable writes on the expansion bus */
- intel,ixp4xx-eb-write-enable = <1>;
- /* 16 MB of Flash mapped in at CS0 */
- reg = <0 0x00000000 0x1000000>;
- partitions {
- compatible = "redboot-fis";
- /* Eraseblock at 0x0fe0000 */
- fis-index-block = <0x7f>;
- };
- };
- ide@1,0 {
- compatible = "intel,ixp4xx-compact-flash";
- /*
- * Set up expansion bus config to a really slow timing.
- * The CF driver will dynamically reconfigure these timings
- * depending on selected PIO mode (0-4).
- */
- intel,ixp4xx-eb-t1 = <3>; // 3 cycles extra address phase
- intel,ixp4xx-eb-t2 = <3>; // 3 cycles extra setup phase
- intel,ixp4xx-eb-t3 = <15>; // 15 cycles extra strobe phase
- intel,ixp4xx-eb-t4 = <3>; // 3 cycles extra hold phase
- intel,ixp4xx-eb-t5 = <15>; // 15 cycles extra recovery phase
- intel,ixp4xx-eb-cycle-type = <0>; // Intel cycle type
- intel,ixp4xx-eb-byte-access-on-halfword = <1>;
- intel,ixp4xx-eb-mux-address-and-data = <0>;
- intel,ixp4xx-eb-ahb-split-transfers = <0>;
- intel,ixp4xx-eb-write-enable = <1>;
- intel,ixp4xx-eb-byte-access = <1>;
- /* First register set is CMD second is CTL (notice it uses CS2) */
- reg = <1 0x00000000 0x1000000>, <2 0x00000000 0x1000000>;
- interrupt-parent = <&gpio0>;
- interrupts = <12 IRQ_TYPE_EDGE_RISING>;
- };
- /*
- * FIXME: Latch LEDs or extra UARTs at CS4
- */
- };
- pci@c0000000 {
- status = "ok";
- /*
- * Taken from Avila PCI boardfile.
- *
- * We have up to 4 slots (IDSEL) with 4 swizzled IRQs.
- */
- #interrupt-cells = <1>;
- interrupt-map-mask = <0xf800 0 0 7>;
- interrupt-map =
- /* IDSEL 1 */
- <0x0800 0 0 1 &gpio0 11 IRQ_TYPE_LEVEL_LOW>, /* INT A on slot 1 is irq 11 */
- <0x0800 0 0 2 &gpio0 10 IRQ_TYPE_LEVEL_LOW>, /* INT B on slot 1 is irq 10 */
- <0x0800 0 0 3 &gpio0 9 IRQ_TYPE_LEVEL_LOW>, /* INT C on slot 1 is irq 9 */
- <0x0800 0 0 4 &gpio0 8 IRQ_TYPE_LEVEL_LOW>, /* INT D on slot 1 is irq 8 */
- /* IDSEL 2 */
- <0x1000 0 0 1 &gpio0 10 IRQ_TYPE_LEVEL_LOW>, /* INT A on slot 2 is irq 10 */
- <0x1000 0 0 2 &gpio0 9 IRQ_TYPE_LEVEL_LOW>, /* INT B on slot 2 is irq 9 */
- <0x1000 0 0 3 &gpio0 8 IRQ_TYPE_LEVEL_LOW>, /* INT C on slot 2 is irq 8 */
- <0x1000 0 0 4 &gpio0 11 IRQ_TYPE_LEVEL_LOW>, /* INT D on slot 2 is irq 11 */
- /* IDSEL 3 */
- <0x1800 0 0 1 &gpio0 9 IRQ_TYPE_LEVEL_LOW>, /* INT A on slot 3 is irq 9 */
- <0x1800 0 0 2 &gpio0 8 IRQ_TYPE_LEVEL_LOW>, /* INT B on slot 3 is irq 8 */
- <0x1800 0 0 3 &gpio0 11 IRQ_TYPE_LEVEL_LOW>, /* INT C on slot 3 is irq 11 */
- <0x1800 0 0 4 &gpio0 10 IRQ_TYPE_LEVEL_LOW>, /* INT D on slot 3 is irq 10 */
- /* IDSEL 4 */
- <0x2000 0 0 1 &gpio0 8 IRQ_TYPE_LEVEL_LOW>, /* INT A on slot 4 is irq 8 */
- <0x2000 0 0 2 &gpio0 11 IRQ_TYPE_LEVEL_LOW>, /* INT B on slot 4 is irq 11 */
- <0x2000 0 0 3 &gpio0 10 IRQ_TYPE_LEVEL_LOW>, /* INT C on slot 4 is irq 10 */
- <0x2000 0 0 4 &gpio0 9 IRQ_TYPE_LEVEL_LOW>; /* INT D on slot 4 is irq 9 */
- };
- /* EthB */
- ethernet@c8009000 {
- status = "ok";
- queue-rx = <&qmgr 3>;
- queue-txready = <&qmgr 20>;
- phy-mode = "rgmii";
- phy-handle = <&phy0>;
- mdio {
- #address-cells = <1>;
- #size-cells = <0>;
- phy0: ethernet-phy@0 {
- reg = <0>;
- };
- phy1: ethernet-phy@1 {
- reg = <1>;
- };
- };
- };
- /* EthC */
- ethernet@c800a000 {
- status = "ok";
- queue-rx = <&qmgr 4>;
- queue-txready = <&qmgr 21>;
- phy-mode = "rgmii";
- phy-handle = <&phy1>;
- };
- };
- };
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