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Commit 2de05a57 authored by Kukjin Kim's avatar Kukjin Kim
Browse files

Merge branch 'next/devel-exynos5250-1' into next/devel-samsung-2

parents ab5a4e63 380c3a54

Documentation/devicetree/bindings/arm/samsung/interrupt-combiner.txt

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* Samsung Exynos Interrupt Combiner Controller



Samsung's Exynos4 architecture includes a interrupt combiner controller which

can combine interrupt sources as a group and provide a single interrupt request

for the group. The interrupt request from each group are connected to a parent

interrupt controller, such as GIC in case of Exynos4210.



The interrupt combiner controller consists of multiple combiners. Upto eight

interrupt sources can be connected to a combiner. The combiner outputs one

combined interrupt for its eight interrupt sources. The combined interrupt

is usually connected to a parent interrupt controller.



A single node in the device tree is used to describe the interrupt combiner

controller module (which includes multiple combiners). A combiner in the

interrupt controller module shares config/control registers with other

combiners. For example, a 32-bit interrupt enable/disable config register

can accommodate upto 4 interrupt combiners (with each combiner supporting

upto 8 interrupt sources).



Required properties:

- compatible: should be "samsung,exynos4210-combiner".

- interrupt-controller: Identifies the node as an interrupt controller.

- #interrupt-cells: should be <2>. The meaning of the cells are

	* First Cell: Combiner Group Number.

	* Second Cell: Interrupt number within the group.

- reg: Base address and size of interrupt combiner registers.

- interrupts: The list of interrupts generated by the combiners which are then

    connected to a parent interrupt controller. The format of the interrupt

    specifier depends in the interrupt parent controller.



Optional properties:

- samsung,combiner-nr: The number of interrupt combiners supported. If this

  property is not specified, the default number of combiners is assumed

  to be 16.

- interrupt-parent: pHandle of the parent interrupt controller, if not

  inherited from the parent node.





Example:



	The following is a an example from the Exynos4210 SoC dtsi file.



	combiner:interrupt-controller@10440000 {

		compatible = "samsung,exynos4210-combiner";

		interrupt-controller;

		#interrupt-cells = <2>;

		reg = <0x10440000 0x1000>;

		interrupts = <0 0 0>, <0 1 0>, <0 2 0>, <0 3 0>,

			     <0 4 0>, <0 5 0>, <0 6 0>, <0 7 0>,

			     <0 8 0>, <0 9 0>, <0 10 0>, <0 11 0>,

			     <0 12 0>, <0 13 0>, <0 14 0>, <0 15 0>;

	};

arch/arm/Kconfig

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@@ -1088,7 +1088,6 @@ source "arch/arm/mach-sa1100/Kconfig" 


source "arch/arm/plat-samsung/Kconfig"

source "arch/arm/plat-s3c24xx/Kconfig"

source "arch/arm/plat-s5p/Kconfig"



source "arch/arm/plat-spear/Kconfig"

arch/arm/Makefile

+1 −1
Original line number Diff line number Diff line
@@ -209,7 +209,7 @@ plat-$(CONFIG_PLAT_NOMADIK) := nomadik 
plat-$(CONFIG_PLAT_ORION)	:= orion

plat-$(CONFIG_PLAT_PXA)		:= pxa

plat-$(CONFIG_PLAT_S3C24XX)	:= s3c24xx samsung

plat-$(CONFIG_PLAT_S5P)		:= s5p samsung

plat-$(CONFIG_PLAT_S5P)		:= samsung

plat-$(CONFIG_PLAT_SPEAR)	:= spear

plat-$(CONFIG_PLAT_VERSATILE)	:= versatile

arch/arm/boot/dts/exynos5250-smdk5250.dts

+48 −0
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@@ -23,4 +23,52 @@ 
	chosen {

		bootargs = "root=/dev/ram0 rw ramdisk=8192 console=ttySAC1,115200";

	};



	i2c@12C60000 {

		samsung,i2c-sda-delay = <100>;

		samsung,i2c-max-bus-freq = <20000>;

		gpios = <&gpb3 0 2 3 0>,

			<&gpb3 1 2 3 0>;



		eeprom@50 {

			compatible = "samsung,s524ad0xd1";

			reg = <0x50>;

		};

	};



	i2c@12C70000 {

		samsung,i2c-sda-delay = <100>;

		samsung,i2c-max-bus-freq = <20000>;

		gpios = <&gpb3 2 2 3 0>,

			<&gpb3 3 2 3 0>;



		eeprom@51 {

			compatible = "samsung,s524ad0xd1";

			reg = <0x51>;

		};

	};



	i2c@12C80000 {

		status = "disabled";

	};



	i2c@12C90000 {

		status = "disabled";

	};



	i2c@12CA0000 {

		status = "disabled";

	};



	i2c@12CB0000 {

		status = "disabled";

	};



	i2c@12CC0000 {

		status = "disabled";

	};



	i2c@12CD0000 {

		status = "disabled";

	};

};

arch/arm/boot/dts/exynos5250.dtsi

+29 −31
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@@ -23,11 +23,11 @@ 
	compatible = "samsung,exynos5250";

	interrupt-parent = <&gic>;



	gic:interrupt-controller@10490000 {

	gic:interrupt-controller@10481000 {

		compatible = "arm,cortex-a9-gic";

		#interrupt-cells = <3>;

		interrupt-controller;

		reg = <0x10490000 0x1000>, <0x10480000 0x100>;

		reg = <0x10481000 0x1000>, <0x10482000 0x2000>;

	};



	watchdog {
@@ -42,30 +42,6 @@ 
		interrupts = <0 43 0>, <0 44 0>;

	};



	sdhci@12200000 {

		compatible = "samsung,exynos4210-sdhci";

		reg = <0x12200000 0x100>;

		interrupts = <0 75 0>;

	};



	sdhci@12210000 {

		compatible = "samsung,exynos4210-sdhci";

		reg = <0x12210000 0x100>;

		interrupts = <0 76 0>;

	};



	sdhci@12220000 {

		compatible = "samsung,exynos4210-sdhci";

		reg = <0x12220000 0x100>;

		interrupts = <0 77 0>;

	};



	sdhci@12230000 {

		compatible = "samsung,exynos4210-sdhci";

		reg = <0x12230000 0x100>;

		interrupts = <0 78 0>;

	};



	serial@12C00000 {

		compatible = "samsung,exynos4210-uart";

		reg = <0x12C00000 0x100>;
@@ -94,48 +70,64 @@ 
		compatible = "samsung,s3c2440-i2c";

		reg = <0x12C60000 0x100>;

		interrupts = <0 56 0>;

		#address-cells = <1>;

		#size-cells = <0>;

	};



	i2c@12C70000 {

		compatible = "samsung,s3c2440-i2c";

		reg = <0x12C70000 0x100>;

		interrupts = <0 57 0>;

		#address-cells = <1>;

		#size-cells = <0>;

	};



	i2c@12C80000 {

		compatible = "samsung,s3c2440-i2c";

		reg = <0x12C80000 0x100>;

		interrupts = <0 58 0>;

		#address-cells = <1>;

		#size-cells = <0>;

	};



	i2c@12C90000 {

		compatible = "samsung,s3c2440-i2c";

		reg = <0x12C90000 0x100>;

		interrupts = <0 59 0>;

		#address-cells = <1>;

		#size-cells = <0>;

	};



	i2c@12CA0000 {

		compatible = "samsung,s3c2440-i2c";

		reg = <0x12CA0000 0x100>;

		interrupts = <0 60 0>;

		#address-cells = <1>;

		#size-cells = <0>;

	};



	i2c@12CB0000 {

		compatible = "samsung,s3c2440-i2c";

		reg = <0x12CB0000 0x100>;

		interrupts = <0 61 0>;

		#address-cells = <1>;

		#size-cells = <0>;

	};



	i2c@12CC0000 {

		compatible = "samsung,s3c2440-i2c";

		reg = <0x12CC0000 0x100>;

		interrupts = <0 62 0>;

		#address-cells = <1>;

		#size-cells = <0>;

	};



	i2c@12CD0000 {

		compatible = "samsung,s3c2440-i2c";

		reg = <0x12CD0000 0x100>;

		interrupts = <0 63 0>;

		#address-cells = <1>;

		#size-cells = <0>;

	};



	amba {
@@ -157,13 +149,13 @@ 
			interrupts = <0 35 0>;

		};



		mdma0: pdma@10800000 {

		mdma0: mdma@10800000 {

			compatible = "arm,pl330", "arm,primecell";

			reg = <0x10800000 0x1000>;

			interrupts = <0 33 0>;

		};



		mdma1: pdma@11C10000 {

		mdma1: mdma@11C10000 {

			compatible = "arm,pl330", "arm,primecell";

			reg = <0x11C10000 0x1000>;

			interrupts = <0 124 0>;
@@ -242,6 +234,12 @@ 
			#gpio-cells = <4>;

		};



		gpc4: gpio-controller@114002E0 {

			compatible = "samsung,exynos4-gpio";

			reg = <0x114002E0 0x20>;

			#gpio-cells = <4>;

		};



		gpd0: gpio-controller@11400160 {

			compatible = "samsung,exynos4-gpio";

			reg = <0x11400160 0x20>;
@@ -388,19 +386,19 @@ 


		gpv2: gpio-controller@10D10040 {

			compatible = "samsung,exynos4-gpio";

			reg = <0x10D10040 0x20>;

			reg = <0x10D10060 0x20>;

			#gpio-cells = <4>;

		};



		gpv3: gpio-controller@10D10060 {

			compatible = "samsung,exynos4-gpio";

			reg = <0x10D10060 0x20>;

			reg = <0x10D10080 0x20>;

			#gpio-cells = <4>;

		};



		gpv4: gpio-controller@10D10080 {

			compatible = "samsung,exynos4-gpio";

			reg = <0x10D10080 0x20>;

			reg = <0x10D100C0 0x20>;

			#gpio-cells = <4>;

		};