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ARC: [xplorer] Add device tree files for ARC Xplorer System
The ARC Xplorer System consists of a mainboard with peripherals, on which several daughter cards can be placed. This adds the device tree (include) files for: - the ARC Xplorer mainboard - the ARC Xplorer 770D CPU tile - the system that consists of the two above Signed-off-by: Mischa Jonker <[email protected]>
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‎arch/arc/boot/dts/xplorer_cputile_770.dtsi‎

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/*
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* Copyright (C) 2013 Synopsys, Inc. (www.synopsys.com)
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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/*
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* Device tree for ARC Xplorer 770D/EM6/AS221 CPU tile
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*/
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/ {
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compatible = "snps,arc";
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clock-frequency = <750000000>; /* 750 MHZ */
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#address-cells = <1>;
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#size-cells = <1>;
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cpu_tile {
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compatible = "simple-bus";
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#address-cells = <1>;
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#size-cells = <1>;
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ranges = <0x00000000 0xf0000000 0x10000000>;
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cpu_intc: arc700-intc@cpu {
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compatible = "snps,arc700-intc";
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interrupt-controller;
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#interrupt-cells = <1>;
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};
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/* this GPIO block serves as an interrupt controller and
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uses multiple interrupts on the ARC700 */
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gpio_intc: dw-apb-gpio-intc@0x3000 {
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compatible = "snps,dw-apb-gpio-intc";
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interrupt-controller;
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reg = < 0x3000 0x80 >;
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#interrupt-cells = <1>;
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interrupt-parent = <&cpu_intc>;
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interrupts = < 5 6 7 8 9 >;
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};
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/* this GPIO block serves as an interrupt controller and
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ORs all interrupts, so that only one interrupt on ARC700
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is used */
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ictl_intc: dw-apb-gpio-intc@0x2000 {
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compatible = "snps,dw-apb-gpio-intc";
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interrupt-controller;
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reg = < 0x2000 0x80 >;
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#interrupt-cells = <1>;
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interrupt-parent = <&cpu_intc>;
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interrupts = <15>;
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};
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debug_uart: dw-apb-uart@0x5000 {
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compatible = "snps,dw-apb-uart";
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reg = <0x5000 0x100>;
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clock-frequency = <33333000>;
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interrupt-parent = <&ictl_intc>;
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interrupts = <19>;
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baud = <115200>;
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reg-shift = <2>;
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reg-io-width = <4>;
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};
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arcpmu0: pmu {
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compatible = "snps,arc_pmu";
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};
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};
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memory {
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#address-cells = <1>;
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#size-cells = <1>;
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ranges = <0x00000000 0x80000000 0x40000000>;
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device_type = "memory";
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reg = <0x00000000 0x20000000>; /* 512MiB */
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};
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};

‎arch/arc/boot/dts/xplorer_fpga.dtsi‎

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/*
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* Copyright (C) 2013 Synopsys, Inc. (www.synopsys.com)
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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/ {
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fpga {
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compatible = "simple-bus";
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#address-cells = <1>;
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#size-cells = <1>;
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#interrupt-cells = <1>;
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ranges = <0x00000000 0xe0000000 0x10000000>;
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interrupt-parent = <&fpga_intc>;
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clocks {
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i2cclk: i2cclk {
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compatible = "fixed-clock";
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clock-frequency = <50000000>;
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#clock-cells = <0>;
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};
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apbclk: apbclk {
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compatible = "fixed-clock";
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clock-frequency = <50000000>;
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#clock-cells = <0>;
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};
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mmcclk: mmcclk {
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compatible = "fixed-clock";
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clock-frequency = <50000000>;
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#clock-cells = <0>;
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};
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};
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fpga_intc: dw-apb-ictl@0x12000 {
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#interrupt-cells = <1>;
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compatible = "snps,dw-apb-ictl";
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reg = < 0x12000 0x200 >;
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interrupt-controller;
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interrupt-parent = <&gpio_intc>;
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/* gpio[12] is input for interrupts from FPGA */
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/* first pin is #10, so interrupt idx 2 */
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interrupts = < 12 >;
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};
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ethernet@0x18000 {
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#interrupt-cells = <1>;
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compatible = "snps,dwmac";
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reg = < 0x18000 0x2000 >;
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interrupts = < 4 >;
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interrupt-names = "macirq";
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phy-mode = "rgmii";
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snps,phy-addr = < 1 >;
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snps,pbl = < 32 >;
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clocks = <&apbclk>;
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clock-names = "stmmaceth";
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};
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ehci@0x40000 {
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compatible = "snps,h20apb-ehci";
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reg = < 0x40000 0x100 >;
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interrupts = < 8 >;
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};
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/* ohci@0x60000 {
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compatible = "snps,h20apb-ohci";
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reg = < 0x60000 0x100 >;
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interrupts = < 8 >;
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}; */
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mmc@0x15000 {
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compatible = "snps,dw-mshc";
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reg = < 0x15000 0x400 >;
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num-slots = < 1 >;
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fifo-depth = < 16 >;
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card-detect-delay = < 200 >;
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clocks = <&apbclk>, <&mmcclk>;
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clock-names = "biu", "ciu";
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interrupts = < 7 >;
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bus-width = < 4 >;
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};
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uart@0x20000 {
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compatible = "snps,dw-apb-uart";
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reg = <0x20000 0x100>;
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clock-frequency = <33333333>;
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interrupts = <17>;
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baud = <115200>;
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reg-shift = <2>;
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reg-io-width = <4>;
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};
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uart@0x21000 {
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compatible = "snps,dw-apb-uart";
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reg = <0x21000 0x100>;
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clock-frequency = <33333333>;
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interrupts = <18>;
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baud = <115200>;
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reg-shift = <2>;
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reg-io-width = <4>;
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};
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uart@0x22000 {
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compatible = "snps,dw-apb-uart";
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reg = <0x22000 0x100>;
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clock-frequency = <33333333>;
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interrupts = <19>;
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baud = <115200>;
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reg-shift = <2>;
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reg-io-width = <4>;
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};
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i2c@0x1d000 {
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compatible = "snps,designware-i2c";
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reg = <0x1d000 0x100>;
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clock-frequency = <400000>;
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clocks = <&i2cclk>;
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interrupts = <14>;
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};
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i2c@0x1e000 {
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compatible = "snps,designware-i2c";
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reg = <0x1e000 0x100>;
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clock-frequency = <400000>;
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clocks = <&i2cclk>;
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interrupts = <15>;
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};
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i2c@0x1f000 {
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compatible = "snps,designware-i2c";
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reg = <0x1f000 0x100>;
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clock-frequency = <400000>;
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clocks = <&i2cclk>;
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interrupts = <16>;
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};
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};
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};

‎arch/arc/boot/dts/xplorer_system_770.dts‎

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/*
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* Copyright (C) 2013 Synopsys, Inc. (www.synopsys.com)
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*
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* ARC Xplorer System 770D/EM6/AS221
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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/dts-v1/;
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/include/ "xplorer_cputile_770.dtsi"
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/include/ "xplorer_fpga.dtsi"
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/ {
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compatible = "snps,xplorer770";
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chosen {
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bootargs = "console=ttyS3,115200n8";
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};
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};

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