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Commit d44a1138 authored by Joel Stanley's avatar Joel Stanley
Browse files

arm/dts: Add Aspeed ast2400 device tree 



A common device tree for all forth gen/ast2400 systems and a board
specific dts for the Palmetto OpenPower developemnt machine which was
used for testing.

Signed-off-by: default avatarJoel Stanley <joel@jms.id.au>
parent 5f1a7ab2

arch/arm/boot/dts/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -839,6 +839,7 @@ dtb-$(CONFIG_ARCH_MEDIATEK) += \ 
	mt8127-moose.dtb \

	mt8135-evbp1.dtb

dtb-$(CONFIG_ARCH_ZX) += zx296702-ad1.dtb

dtb-$(CONFIG_ARCH_ASPEED) += aspeed-bmc-opp-palmetto.dtb

endif



dtstree		:= $(srctree)/$(src)

arch/arm/boot/dts/aspeed-bmc-opp-palmetto.dts

0 → 100644
+25 −0
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/dts-v1/;



#include "aspeed-g4.dtsi"



/ {

	model = "Palmetto BMC";

	compatible = "tyan,palmetto-bmc", "aspeed,ast2400";



	aliases {

		serial4 = &uart5;

	};



	chosen {

		stdout-path = &uart5;

		bootargs = "console=ttyS4,38400 earlyprintk";

	};



	memory {

		reg = <0x40000000 0x10000000>;

	};

};



&uart5 {

	status = "okay";

};

arch/arm/boot/dts/aspeed-g4.dtsi

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+161 −0
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#include "skeleton.dtsi"



/ {

	model = "Aspeed BMC";

	compatible = "aspeed,ast2400";

	#address-cells = <1>;

	#size-cells = <1>;

	interrupt-parent = <&vic>;



	cpus {

		#address-cells = <1>;

		#size-cells = <0>;



		cpu@0 {

			compatible = "arm,arm926ej-s";

			device_type = "cpu";

			reg = <0>;

		};

	};



	clocks {

		clk_clkin: clk_clkin {

			#clock-cells = <0>;

			compatible = "fixed-clock";

			clock-frequency = <48000000>;

		};



	};



	ahb {

		compatible = "simple-bus";

		#address-cells = <1>;

		#size-cells = <1>;

		ranges;



		vic: interrupt-controller@1e6c0080 {

			compatible = "aspeed,ast2400-vic";

			interrupt-controller;

			#interrupt-cells = <1>;

			valid-sources = <0xffffffff 0x0007ffff>;

			reg = <0x1e6c0080 0x80>;

		};



		apb {

			compatible = "simple-bus";

			#address-cells = <1>;

			#size-cells = <1>;

			ranges;



			clk_hpll: clk_hpll@1e6e2070 {

				#clock-cells = <0>;

				compatible = "aspeed,g4-hpll-clock";

				reg = <0x1e6e2070 0x4>;

				clocks = <&clk_clkin>;

			};



			clk_apb: clk_apb@1e6e2008 {

				#clock-cells = <0>;

				compatible = "aspeed,g4-apb-clock";

				reg = <0x1e6e2008 0x4>;

				clocks = <&clk_hpll>;

			};



			clk_uart: clk_uart@1e6e2008 {

				#clock-cells = <0>;

				compatible = "aspeed,uart-clock";

				reg = <0x1e6e202c 0x4>;

			};



			sram@1e720000 {

				compatible = "mmio-sram";

				reg = <0x1e720000 0x8000>;	// 32K

			};



			timer: timer@1e782000 {

				compatible = "aspeed,ast2400-timer";

				reg = <0x1e782000 0x90>;

				// The moxart_timer driver registers only one

				// interrupt and assumes it's for timer 1

				//interrupts = <16 17 18 35 36 37 38 39>;

				interrupts = <16>;

				clocks = <&clk_apb>;

			};



			wdt1: wdt@1e785000 {

				compatible = "aspeed,wdt";

				reg = <0x1e785000 0x1c>;

				interrupts = <27>;

			};



			wdt2: wdt@1e785020 {

				compatible = "aspeed,wdt";

				reg = <0x1e785020 0x1c>;

				interrupts = <27>;

				clocks = <&clk_apb>;

				status = "disabled";

			};



			uart1: serial@1e783000 {

				compatible = "ns16550a";

				reg = <0x1e783000 0x1000>;

				reg-shift = <2>;

				interrupts = <9>;

				clocks = <&clk_uart>;

				no-loopback-test;

				status = "disabled";

			};



			uart2: serial@1e78d000 {

				compatible = "ns16550a";

				reg = <0x1e78d000 0x1000>;

				reg-shift = <2>;

				interrupts = <32>;

				clocks = <&clk_uart>;

				no-loopback-test;

				status = "disabled";

			};



			uart3: serial@1e78e000 {

				compatible = "ns16550a";

				reg = <0x1e78e000 0x1000>;

				reg-shift = <2>;

				interrupts = <33>;

				clocks = <&clk_uart>;

				no-loopback-test;

				status = "disabled";

			};



			uart4: serial@1e78f000 {

				compatible = "ns16550a";

				reg = <0x1e78f000 0x1000>;

				reg-shift = <2>;

				interrupts = <34>;

				clocks = <&clk_uart>;

				no-loopback-test;

				status = "disabled";

			};



			uart5: serial@1e784000 {

				compatible = "ns16550a";

				reg = <0x1e784000 0x1000>;

				reg-shift = <2>;

				interrupts = <10>;

				clocks = <&clk_uart>;

				current-speed = <38400>;

				no-loopback-test;

				status = "disabled";

			};



			uart6: serial@1e787000 {

				compatible = "ns16550a";

				reg = <0x1e787000 0x1000>;

				reg-shift = <2>;

				interrupts = <10>;

				clocks = <&clk_uart>;

				no-loopback-test;

				status = "disabled";

			};

		};

	};

};