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Commit 8945e37e authored by Kevin Cernekee's avatar Kevin Cernekee Committed by Ralf Baechle
Browse files

MIPS: BMIPS: Add DTS files for several platforms 



Most of the supported chips use legacy (non-DT) bootloaders, so they will
need to select an appropriate builtin DTB at compile time until the
bootloader is updated.  Provide suitable DTS files, and a means to compile
one of them into the kernel image.

Signed-off-by: default avatarKevin Cernekee <cernekee@gmail.com>
Signed-off-by: default avatarJaedon Shin <jaedon.shin@gmail.com>
Cc: f.fainelli@gmail.com
Cc: abrestic@chromium.org
Cc: tglx@linutronix.de
Cc: jason@lakedaemon.net
Cc: jogo@openwrt.org
Cc: arnd@arndb.de
Cc: computersforpeace@gmail.com
Cc: linux-mips@linux-mips.org
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/8858/


Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
parent 81a07b4a

arch/mips/Kconfig

+1 −0
Original line number Diff line number Diff line
@@ -926,6 +926,7 @@ source "arch/mips/ath25/Kconfig" 
source "arch/mips/ath79/Kconfig"

source "arch/mips/bcm47xx/Kconfig"

source "arch/mips/bcm63xx/Kconfig"

source "arch/mips/bmips/Kconfig"

source "arch/mips/jazz/Kconfig"

source "arch/mips/jz4740/Kconfig"

source "arch/mips/lantiq/Kconfig"

arch/mips/bmips/Kconfig

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+58 −0
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choice

	prompt "Built-in device tree"

	help

	  Legacy bootloaders do not pass a DTB pointer to the kernel, so

	  if a "wrapper" is not being used, the kernel will need to include

	  a device tree that matches the target board.



	  The builtin DTB will only be used if the firmware does not supply

	  a valid DTB.



config DT_NONE

	bool "None"



config DT_BCM93384WVG

	bool "BCM93384WVG Zephyr CPU"

	select BUILTIN_DTB



config DT_BCM93384WVG_VIPER

	bool "BCM93384WVG Viper CPU (EXPERIMENTAL)"

	select BUILTIN_DTB



config DT_BCM96368MVWG

	bool "BCM96368MVWG"

	select BUILTIN_DTB



config DT_BCM9EJTAGPRB

	bool "BCM9EJTAGPRB"

	select BUILTIN_DTB



config DT_BCM97125CBMB

	bool "BCM97125CBMB"

	select BUILTIN_DTB



config DT_BCM97346DBSMB

	bool "BCM97346DBSMB"

	select BUILTIN_DTB



config DT_BCM97358SVMB

	bool "BCM97358SVMB"

	select BUILTIN_DTB



config DT_BCM97360SVMB

	bool "BCM97360SVMB"

	select BUILTIN_DTB



config DT_BCM97362SVMB

	bool "BCM97362SVMB"

	select BUILTIN_DTB



config DT_BCM97420C

	bool "BCM97420C"

	select BUILTIN_DTB



config DT_BCM97425SVMB

	bool "BCM97425SVMB"

	select BUILTIN_DTB



endchoice

arch/mips/boot/dts/brcm/Makefile

+11 −1
Original line number Diff line number Diff line 
dtb-$(CONFIG_BMIPS_GENERIC)	+= bcm93384wvg.dtb

dtb-$(CONFIG_DT_BCM93384WVG)		+= bcm93384wvg.dtb

dtb-$(CONFIG_DT_BCM93384WVG_VIPER)	+= bcm93384wvg_viper.dtb

dtb-$(CONFIG_DT_BCM96368MVWG)		+= bcm96368mvwg.dtb

dtb-$(CONFIG_DT_BCM9EJTAGPRB)		+= bcm9ejtagprb.dtb

dtb-$(CONFIG_DT_BCM97125CBMB)		+= bcm97125cbmb.dtb

dtb-$(CONFIG_DT_BCM97346DBSMB)		+= bcm97346dbsmb.dtb

dtb-$(CONFIG_DT_BCM97358SVMB)		+= bcm97358svmb.dtb

dtb-$(CONFIG_DT_BCM97360SVMB)		+= bcm97360svmb.dtb

dtb-$(CONFIG_DT_BCM97362SVMB)		+= bcm97362svmb.dtb

dtb-$(CONFIG_DT_BCM97420C)		+= bcm97420c.dtb

dtb-$(CONFIG_DT_BCM97425SVMB)		+= bcm97425svmb.dtb



obj-y				+= $(patsubst %.dtb, %.dtb.o, $(dtb-y))

arch/mips/boot/dts/brcm/bcm3384_viper.dtsi

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/ {

	#address-cells = <1>;

	#size-cells = <1>;

	compatible = "brcm,bcm3384-viper", "brcm,bcm33843-viper";



	memory@0 {

		device_type = "memory";



		/* Typical ranges.  The bootloader should fill these in. */

		reg = <0x06000000 0x02000000>,

		      <0x0e000000 0x02000000>;

	};



	cpus {

		#address-cells = <1>;

		#size-cells = <0>;



		/* 1/2 of the CPU core clock (standard MIPS behavior) */

		mips-hpt-frequency = <300000000>;



		cpu@0 {

			compatible = "brcm,bmips4350";

			device_type = "cpu";

			reg = <0>;

		};

	};



	cpu_intc: cpu_intc {

		#address-cells = <0>;

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



		interrupt-controller;

		#interrupt-cells = <1>;

	};



	clocks {

		periph_clk: periph_clk {

			compatible = "fixed-clock";

			#clock-cells = <0>;

			clock-frequency = <54000000>;

		};

	};



	aliases {

		uart0 = &uart0;

	};



	ubus {

		#address-cells = <1>;

		#size-cells = <1>;



		compatible = "brcm,ubus", "simple-bus";

		ranges;

		/* No dma-ranges on Viper. */



		periph_intc: periph_intc@14e00048 {

			compatible = "brcm,bcm3380-l2-intc";

			reg = <0x14e00048 0x4 0x14e0004c 0x4>,

			      <0x14e00350 0x4 0x14e00354 0x4>;



			interrupt-controller;

			#interrupt-cells = <1>;



			interrupt-parent = <&cpu_intc>;

			interrupts = <4>;

		};



		cmips_intc: cmips_intc@151f8048 {

			compatible = "brcm,bcm3380-l2-intc";

			reg = <0x151f8048 0x4 0x151f804c 0x4>;



			interrupt-controller;

			#interrupt-cells = <1>;



			interrupt-parent = <&periph_intc>;

			interrupts = <30>;

			brcm,int-map-mask = <0xffffffff>;

		};



		uart0: serial@14e00520 {

			compatible = "brcm,bcm6345-uart";

			reg = <0x14e00520 0x18>;

			interrupt-parent = <&periph_intc>;

			interrupts = <2>;

			clocks = <&periph_clk>;

			status = "disabled";

		};



		ehci0: usb@15400300 {

			compatible = "brcm,bcm3384-ehci", "generic-ehci";

			reg = <0x15400300 0x100>;

			big-endian;

			interrupt-parent = <&periph_intc>;

			interrupts = <41>;

			status = "disabled";

		};



		ohci0: usb@15400400 {

			compatible = "brcm,bcm3384-ohci", "generic-ohci";

			reg = <0x15400400 0x100>;

			big-endian;

			no-big-frame-no;

			interrupt-parent = <&periph_intc>;

			interrupts = <40>;

			status = "disabled";

		};

	};

};

arch/mips/boot/dts/brcm/bcm6328.dtsi

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/ {

	#address-cells = <1>;

	#size-cells = <1>;

	compatible = "brcm,bcm6328";



	cpus {

		#address-cells = <1>;

		#size-cells = <0>;



		mips-hpt-frequency = <160000000>;



		cpu@0 {

			compatible = "brcm,bmips4350";

			device_type = "cpu";

			reg = <0>;

		};



		cpu@1 {

			compatible = "brcm,bmips4350";

			device_type = "cpu";

			reg = <1>;

		};

	};



	clocks {

		periph_clk: periph_clk {

			compatible = "fixed-clock";

			#clock-cells = <0>;

			clock-frequency = <50000000>;

		};

	};



	aliases {

		uart0 = &uart0;

	};



	cpu_intc: cpu_intc {

		#address-cells = <0>;

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



		interrupt-controller;

		#interrupt-cells = <1>;

	};



	ubus {

		#address-cells = <1>;

		#size-cells = <1>;



		compatible = "simple-bus";

		ranges;



		periph_intc: periph_intc@10000020 {

			compatible = "brcm,bcm3380-l2-intc";

			reg = <0x10000024 0x4 0x1000002c 0x4>,

			      <0x10000020 0x4 0x10000028 0x4>;



			interrupt-controller;

			#interrupt-cells = <1>;



			interrupt-parent = <&cpu_intc>;

			interrupts = <2>;

		};



		uart0: serial@10000100 {

			compatible = "brcm,bcm6345-uart";

			reg = <0x10000100 0x18>;

			interrupt-parent = <&periph_intc>;

			interrupts = <28>;

			clocks = <&periph_clk>;

			status = "disabled";

		};



		timer: timer@10000040 {

			compatible = "syscon";

			reg = <0x10000040 0x2c>;

			little-endian;

		};



		reboot {

			compatible = "syscon-reboot";

			regmap = <&timer>;

			offset = <0x28>;

			mask = <0x1>;

		};

	};

};