Commit 0ec48870 authored by Caleb James DeLisle's avatar Caleb James DeLisle Committed by Thomas Bogendoerfer
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mips: dts: Add EcoNet DTS with EN751221 and SmartFiber XP8421-B board 



Add DTS files in support of EcoNet platform, including SmartFiber XP8421-B,
a low cost commercially available board based on EN751221.

Signed-off-by: default avatarCaleb James DeLisle <cjd@cjdns.fr>
Signed-off-by: default avatarThomas Bogendoerfer <tsbogend@alpha.franken.de>
parent abc2d0bc

arch/mips/boot/dts/Makefile

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# SPDX-License-Identifier: GPL-2.0

subdir-$(CONFIG_BMIPS_GENERIC)		+= brcm

subdir-$(CONFIG_CAVIUM_OCTEON_SOC)	+= cavium-octeon

subdir-$(CONFIG_ECONET)			+= econet

subdir-$(CONFIG_EYEQ)			+= mobileye

subdir-$(CONFIG_FIT_IMAGE_FDT_MARDUK)   += img

subdir-$(CONFIG_FIT_IMAGE_FDT_BOSTON)	+= img

arch/mips/boot/dts/econet/Makefile

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# SPDX-License-Identifier: GPL-2.0

dtb-$(CONFIG_DTB_ECONET_SMARTFIBER_XP8421_B)	+= en751221_smartfiber_xp8421-b.dtb

arch/mips/boot/dts/econet/en751221.dtsi

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// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)

/dts-v1/;



/ {

	compatible = "econet,en751221";

	#address-cells = <1>;

	#size-cells = <1>;



	hpt_clock: clock {

		compatible = "fixed-clock";

		#clock-cells = <0>;

		clock-frequency = <200000000>;  /* 200 MHz */

	};



	cpus: cpus {

		#address-cells = <1>;

		#size-cells = <0>;



		cpu@0 {

			device_type = "cpu";

			compatible = "mips,mips24KEc";

			reg = <0>;

		};

	};



	cpuintc: interrupt-controller {

		compatible = "mti,cpu-interrupt-controller";

		interrupt-controller;

		#address-cells = <0>;

		#interrupt-cells = <1>;

	};



	intc: interrupt-controller@1fb40000 {

		compatible = "econet,en751221-intc";

		reg = <0x1fb40000 0x100>;

		interrupt-parent = <&cpuintc>;

		interrupts = <2>;



		interrupt-controller;

		#interrupt-cells = <1>;

		econet,shadow-interrupts = <7 2>, <8 3>, <13 12>, <30 29>;

	};



	uart: serial@1fbf0000 {

		compatible = "ns16550";

		reg = <0x1fbf0000 0x30>;

		reg-io-width = <4>;

		reg-shift = <2>;

		interrupt-parent = <&intc>;

		interrupts = <0>;

		/*

		 * Conversion of baud rate to clock frequency requires a

		 * computation that is not in the ns16550 driver, so this

		 * uart is fixed at 115200 baud.

		 */

		clock-frequency = <1843200>;

	};



	timer_hpt: timer@1fbf0400 {

		compatible = "econet,en751221-timer";

		reg = <0x1fbf0400 0x100>;



		interrupt-parent = <&intc>;

		interrupts = <30>;

		clocks = <&hpt_clock>;

	};

};

arch/mips/boot/dts/econet/en751221_smartfiber_xp8421-b.dts

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// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)

/dts-v1/;



#include "en751221.dtsi"



/ {

	model = "SmartFiber XP8421-B";

	compatible = "smartfiber,xp8421-b", "econet,en751221";



	memory@0 {

		device_type = "memory";

		reg = <0x00000000 0x1c000000>;

	};



	chosen {

		stdout-path = "/serial@1fbf0000:115200";

		linux,usable-memory-range = <0x00020000 0x1bfe0000>;

	};

};

arch/mips/econet/Kconfig

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@@ -32,6 +32,17 @@ choice 


	config DTB_ECONET_NONE

		bool "None"



	config DTB_ECONET_SMARTFIBER_XP8421_B

		bool "EN751221 SmartFiber XP8421-B"

		depends on SOC_ECONET_EN751221

		select BUILTIN_DTB

		help

		  The SmartFiber XP8421-B is a device based on the EN751221 SoC.

		  It has 512MB of memory and 256MB of NAND flash. This kernel

		  needs only an appended initramfs to boot. It can be loaded

		  through XMODEM and booted from memory in the bootloader, or

		  it can be packed in tclinux.trx format and written to flash.

endchoice



endif