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0ec4887009
Add DTS files in support of EcoNet platform, including SmartFiber XP8421-B, a low cost commercially available board based on EN751221. Signed-off-by: Caleb James DeLisle <cjd@cjdns.fr> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
67 lines
1.4 KiB
Text
67 lines
1.4 KiB
Text
// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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/dts-v1/;
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/ {
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compatible = "econet,en751221";
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#address-cells = <1>;
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#size-cells = <1>;
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hpt_clock: clock {
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compatible = "fixed-clock";
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#clock-cells = <0>;
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clock-frequency = <200000000>; /* 200 MHz */
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};
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cpus: cpus {
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#address-cells = <1>;
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#size-cells = <0>;
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cpu@0 {
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device_type = "cpu";
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compatible = "mips,mips24KEc";
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reg = <0>;
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};
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};
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cpuintc: interrupt-controller {
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compatible = "mti,cpu-interrupt-controller";
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interrupt-controller;
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#address-cells = <0>;
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#interrupt-cells = <1>;
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};
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intc: interrupt-controller@1fb40000 {
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compatible = "econet,en751221-intc";
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reg = <0x1fb40000 0x100>;
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interrupt-parent = <&cpuintc>;
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interrupts = <2>;
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interrupt-controller;
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#interrupt-cells = <1>;
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econet,shadow-interrupts = <7 2>, <8 3>, <13 12>, <30 29>;
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};
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uart: serial@1fbf0000 {
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compatible = "ns16550";
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reg = <0x1fbf0000 0x30>;
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reg-io-width = <4>;
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reg-shift = <2>;
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interrupt-parent = <&intc>;
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interrupts = <0>;
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/*
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* Conversion of baud rate to clock frequency requires a
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* computation that is not in the ns16550 driver, so this
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* uart is fixed at 115200 baud.
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*/
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clock-frequency = <1843200>;
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};
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timer_hpt: timer@1fbf0400 {
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compatible = "econet,en751221-timer";
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reg = <0x1fbf0400 0x100>;
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interrupt-parent = <&intc>;
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interrupts = <30>;
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clocks = <&hpt_clock>;
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};
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};
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