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Commit 65bd2004 authored by Michael Turquette's avatar Michael Turquette Committed by Stephen Boyd
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Merge tag 'v3.20-exynos5433-clk' of git://linuxtv.org/snawrocki/samsung into clk-next 

Clock controller driver for Exynos 5433 SoC.
parents 0bf0ff82 b2f0e5f2

Documentation/devicetree/bindings/clock/exynos5433-clock.txt

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* Samsung Exynos5433 CMU (Clock Management Units)



The Exynos5433 clock controller generates and supplies clock to various

controllers within the Exynos5433 SoC.



Required Properties:



- compatible: should be one of the following.

  - "samsung,exynos5433-cmu-top"   - clock controller compatible for CMU_TOP

    which generates clocks for IMEM/FSYS/G3D/GSCL/HEVC/MSCL/G2D/MFC/PERIC/PERIS

    domains and bus clocks.

  - "samsung,exynos5433-cmu-cpif"  - clock controller compatible for CMU_CPIF

    which generates clocks for LLI (Low Latency Interface) IP.

  - "samsung,exynos5433-cmu-mif"   - clock controller compatible for CMU_MIF

    which generates clocks for DRAM Memory Controller domain.

  - "samsung,exynos5433-cmu-peric" - clock controller compatible for CMU_PERIC

    which generates clocks for UART/I2C/SPI/I2S/PCM/SPDIF/PWM/SLIMBUS IPs.

  - "samsung,exynos5433-cmu-peris" - clock controller compatible for CMU_PERIS

    which generates clocks for PMU/TMU/MCT/WDT/RTC/SECKEY/TZPC IPs.

  - "samsung,exynos5433-cmu-fsys"  - clock controller compatible for CMU_FSYS

    which generates clocks for USB/UFS/SDMMC/TSI/PDMA IPs.

  - "samsung,exynos5433-cmu-g2d"   - clock controller compatible for CMU_G2D

    which generates clocks for G2D/MDMA IPs.

  - "samsung,exynos5433-cmu-disp"  - clock controller compatible for CMU_DISP

    which generates clocks for Display (DECON/HDMI/DSIM/MIXER) IPs.

  - "samsung,exynos5433-cmu-aud"   - clock controller compatible for CMU_AUD

    which generates clocks for Cortex-A5/BUS/AUDIO clocks.

  - "samsung,exynos5433-cmu-bus0", "samsung,exynos5433-cmu-bus1"

    and "samsung,exynos5433-cmu-bus2" - clock controller compatible for CMU_BUS

    which generates global data buses clock and global peripheral buses clock.

  - "samsung,exynos5433-cmu-g3d"  - clock controller compatible for CMU_G3D

    which generates clocks for 3D Graphics Engine IP.

  - "samsung,exynos5433-cmu-gscl"  - clock controller compatible for CMU_GSCL

    which generates clocks for GSCALER IPs.

  - "samsung,exynos5433-cmu-apollo"- clock controller compatible for CMU_APOLLO

    which generates clocks for Cortex-A53 Quad-core processor.

  - "samsung,exynos5433-cmu-atlas" - clock controller compatible for CMU_ATLAS

    which generates clocks for Cortex-A57 Quad-core processor, CoreSight and

    L2 cache controller.

  - "samsung,exynos5433-cmu-mscl" - clock controller compatible for CMU_MSCL

    which generates clocks for M2M (Memory to Memory) scaler and JPEG IPs.

  - "samsung,exynos5433-cmu-mfc"  - clock controller compatible for CMU_MFC

    which generates clocks for MFC(Multi-Format Codec) IP.

  - "samsung,exynos5433-cmu-hevc" - clock controller compatible for CMU_HEVC

    which generates clocks for HEVC(High Efficiency Video Codec) decoder IP.

  - "samsung,exynos5433-cmu-isp" - clock controller compatible for CMU_ISP

    which generates clocks for FIMC-ISP/DRC/SCLC/DIS/3DNR IPs.

  - "samsung,exynos5433-cmu-cam0" - clock controller compatible for CMU_CAM0

    which generates clocks for MIPI_CSIS{0|1}/FIMC_LITE_{A|B|D}/FIMC_3AA{0|1}

    IPs.

  - "samsung,exynos5433-cmu-cam1" - clock controller compatible for CMU_CAM1

    which generates clocks for Cortex-A5/MIPI_CSIS2/FIMC-LITE_C/FIMC-FD IPs.



- reg: physical base address of the controller and length of memory mapped

  region.



- #clock-cells: should be 1.



- clocks: list of the clock controller input clock identifiers,

	from common clock bindings. Please refer the next section

	to find the input clocks for a given controller.



- clock-names: list of the clock controller input clock names,

	as described in clock-bindings.txt.



	Input clocks for top clock controller:

		- oscclk

		- sclk_mphy_pll

		- sclk_mfc_pll

		- sclk_bus_pll



	Input clocks for cpif clock controller:

		- oscclk



	Input clocks for mif clock controller:

		- oscclk

		- sclk_mphy_pll



	Input clocks for fsys clock controller:

		- oscclk

		- sclk_ufs_mphy

		- div_aclk_fsys_200

		- sclk_pcie_100_fsys

		- sclk_ufsunipro_fsys

		- sclk_mmc2_fsys

		- sclk_mmc1_fsys

		- sclk_mmc0_fsys

		- sclk_usbhost30_fsys

		- sclk_usbdrd30_fsys



	Input clocks for g2d clock controller:

		- oscclk

		- aclk_g2d_266

		- aclk_g2d_400



	Input clocks for disp clock controller:

		- oscclk

		- sclk_dsim1_disp

		- sclk_dsim0_disp

		- sclk_dsd_disp

		- sclk_decon_tv_eclk_disp

		- sclk_decon_vclk_disp

		- sclk_decon_eclk_disp

		- sclk_decon_tv_vclk_disp

		- aclk_disp_333



	Input clocks for bus0 clock controller:

		- aclk_bus0_400



	Input clocks for bus1 clock controller:

		- aclk_bus1_400



	Input clocks for bus2 clock controller:

		- oscclk

		- aclk_bus2_400



	Input clocks for g3d clock controller:

		- oscclk

		- aclk_g3d_400



	Input clocks for gscl clock controller:

		- oscclk

		- aclk_gscl_111

		- aclk_gscl_333



	Input clocks for apollo clock controller:

		- oscclk

		- sclk_bus_pll_apollo



	Input clocks for atlas clock controller:

		- oscclk

		- sclk_bus_pll_atlas



	Input clocks for mscl clock controller:

		- oscclk

		- sclk_jpeg_mscl

		- aclk_mscl_400



	Input clocks for mfc clock controller:

		- oscclk

		- aclk_mfc_400



	Input clocks for hevc clock controller:

		- oscclk

		- aclk_hevc_400



	Input clocks for isp clock controller:

		- oscclk

		- aclk_isp_dis_400

		- aclk_isp_400



	Input clocks for cam0 clock controller:

		- oscclk

		- aclk_cam0_333

		- aclk_cam0_400

		- aclk_cam0_552



	Input clocks for cam1 clock controller:

		- oscclk

		- sclk_isp_uart_cam1

		- sclk_isp_spi1_cam1

		- sclk_isp_spi0_cam1

		- aclk_cam1_333

		- aclk_cam1_400

		- aclk_cam1_552



Each clock is assigned an identifier and client nodes can use this identifier

to specify the clock which they consume.



All available clocks are defined as preprocessor macros in

dt-bindings/clock/exynos5433.h header and can be used in device

tree sources.



Example 1: Examples of 'oscclk' source clock node are listed below.



	xxti: xxti {

		compatible = "fixed-clock";

		clock-output-names = "oscclk";

		#clock-cells = <0>;

	};



Example 2: Examples of clock controller nodes are listed below.



	cmu_top: clock-controller@10030000 {

		compatible = "samsung,exynos5433-cmu-top";

		reg = <0x10030000 0x0c04>;

		#clock-cells = <1>;



		clock-names = "oscclk",

			"sclk_mphy_pll",

			"sclk_mfc_pll",

			"sclk_bus_pll";

		clocks = <&xxti>,

		       <&cmu_cpif CLK_SCLK_MPHY_PLL>,

		       <&cmu_mif CLK_SCLK_MFC_PLL>,

		       <&cmu_mif CLK_SCLK_BUS_PLL>;

	};



	cmu_cpif: clock-controller@10fc0000 {

		compatible = "samsung,exynos5433-cmu-cpif";

		reg = <0x10fc0000 0x0c04>;

		#clock-cells = <1>;



		clock-names = "oscclk";

		clocks = <&xxti>;

	};



	cmu_mif: clock-controller@105b0000 {

		compatible = "samsung,exynos5433-cmu-mif";

		reg = <0x105b0000 0x100c>;

		#clock-cells = <1>;



		clock-names = "oscclk",

			"sclk_mphy_pll";

		clocks = <&xxti>,

		       <&cmu_cpif CLK_SCLK_MPHY_PLL>;

	};



	cmu_peric: clock-controller@14c80000 {

		compatible = "samsung,exynos5433-cmu-peric";

		reg = <0x14c80000 0x0b08>;

		#clock-cells = <1>;

	};



	cmu_peris: clock-controller@10040000 {

		compatible = "samsung,exynos5433-cmu-peris";

		reg = <0x10040000 0x0b20>;

		#clock-cells = <1>;

	};



	cmu_fsys: clock-controller@156e0000 {

		compatible = "samsung,exynos5433-cmu-fsys";

		reg = <0x156e0000 0x0b04>;

		#clock-cells = <1>;



		clock-names = "oscclk",

			"sclk_ufs_mphy",

			"div_aclk_fsys_200",

			"sclk_pcie_100_fsys",

			"sclk_ufsunipro_fsys",

			"sclk_mmc2_fsys",

			"sclk_mmc1_fsys",

			"sclk_mmc0_fsys",

			"sclk_usbhost30_fsys",

			"sclk_usbdrd30_fsys";

		clocks = <&xxti>,

		       <&cmu_cpif CLK_SCLK_UFS_MPHY>,

		       <&cmu_top CLK_DIV_ACLK_FSYS_200>,

		       <&cmu_top CLK_SCLK_PCIE_100_FSYS>,

		       <&cmu_top CLK_SCLK_UFSUNIPRO_FSYS>,

		       <&cmu_top CLK_SCLK_MMC2_FSYS>,

		       <&cmu_top CLK_SCLK_MMC1_FSYS>,

		       <&cmu_top CLK_SCLK_MMC0_FSYS>,

		       <&cmu_top CLK_SCLK_USBHOST30_FSYS>,

		       <&cmu_top CLK_SCLK_USBDRD30_FSYS>;

	};



	cmu_g2d: clock-controller@12460000 {

		compatible = "samsung,exynos5433-cmu-g2d";

		reg = <0x12460000 0x0b08>;

		#clock-cells = <1>;



		clock-names = "oscclk",

			"aclk_g2d_266",

			"aclk_g2d_400";

		clocks = <&xxti>,

		       <&cmu_top CLK_ACLK_G2D_266>,

		       <&cmu_top CLK_ACLK_G2D_400>;

	};



	cmu_disp: clock-controller@13b90000 {

		compatible = "samsung,exynos5433-cmu-disp";

		reg = <0x13b90000 0x0c04>;

		#clock-cells = <1>;



		clock-names = "oscclk",

			"sclk_dsim1_disp",

			"sclk_dsim0_disp",

			"sclk_dsd_disp",

			"sclk_decon_tv_eclk_disp",

			"sclk_decon_vclk_disp",

			"sclk_decon_eclk_disp",

			"sclk_decon_tv_vclk_disp",

			"aclk_disp_333";

		clocks = <&xxti>,

		       <&cmu_mif CLK_SCLK_DSIM1_DISP>,

		       <&cmu_mif CLK_SCLK_DSIM0_DISP>,

		       <&cmu_mif CLK_SCLK_DSD_DISP>,

		       <&cmu_mif CLK_SCLK_DECON_TV_ECLK_DISP>,

		       <&cmu_mif CLK_SCLK_DECON_VCLK_DISP>,

		       <&cmu_mif CLK_SCLK_DECON_ECLK_DISP>,

		       <&cmu_mif CLK_SCLK_DECON_TV_VCLK_DISP>,

		       <&cmu_mif CLK_ACLK_DISP_333>;

	};



	cmu_aud: clock-controller@114c0000 {

		compatible = "samsung,exynos5433-cmu-aud";

		reg = <0x114c0000 0x0b04>;

		#clock-cells = <1>;

	};



	cmu_bus0: clock-controller@13600000 {

		compatible = "samsung,exynos5433-cmu-bus0";

		reg = <0x13600000 0x0b04>;

		#clock-cells = <1>;



		clock-names = "aclk_bus0_400";

		clocks = <&cmu_top CLK_ACLK_BUS0_400>;

	};



	cmu_bus1: clock-controller@14800000 {

		compatible = "samsung,exynos5433-cmu-bus1";

		reg = <0x14800000 0x0b04>;

		#clock-cells = <1>;



		clock-names = "aclk_bus1_400";

		clocks = <&cmu_top CLK_ACLK_BUS1_400>;

	};



	cmu_bus2: clock-controller@13400000 {

		compatible = "samsung,exynos5433-cmu-bus2";

		reg = <0x13400000 0x0b04>;

		#clock-cells = <1>;



		clock-names = "oscclk", "aclk_bus2_400";

		clocks = <&xxti>, <&cmu_mif CLK_ACLK_BUS2_400>;

	};



	cmu_g3d: clock-controller@14aa0000 {

		compatible = "samsung,exynos5433-cmu-g3d";

		reg = <0x14aa0000 0x1000>;

		#clock-cells = <1>;



		clock-names = "oscclk", "aclk_g3d_400";

		clocks = <&xxti>, <&cmu_top CLK_ACLK_G3D_400>;

	};



	cmu_gscl: clock-controller@13cf0000 {

		compatible = "samsung,exynos5433-cmu-gscl";

		reg = <0x13cf0000 0x0b10>;

		#clock-cells = <1>;



		clock-names = "oscclk",

			"aclk_gscl_111",

			"aclk_gscl_333";

		clocks = <&xxti>,

			<&cmu_top CLK_ACLK_GSCL_111>,

			<&cmu_top CLK_ACLK_GSCL_333>;

	};



	cmu_apollo: clock-controller@11900000 {

		compatible = "samsung,exynos5433-cmu-apollo";

		reg = <0x11900000 0x1088>;

		#clock-cells = <1>;



		clock-names = "oscclk", "sclk_bus_pll_apollo";

		clocks = <&xxti>, <&cmu_mif CLK_SCLK_BUS_PLL_APOLLO>;

	};



	cmu_atlas: clock-controller@11800000 {

		compatible = "samsung,exynos5433-cmu-atlas";

		reg = <0x11800000 0x1088>;

		#clock-cells = <1>;



		clock-names = "oscclk", "sclk_bus_pll_atlas";

		clocks = <&xxti>, <&cmu_mif CLK_SCLK_BUS_PLL_ATLAS>;

	};



	cmu_mscl: clock-controller@105d0000 {

		compatible = "samsung,exynos5433-cmu-mscl";

		reg = <0x105d0000 0x0b10>;

		#clock-cells = <1>;



		clock-names = "oscclk",

			"sclk_jpeg_mscl",

			"aclk_mscl_400";

		clocks = <&xxti>,

		       <&cmu_top CLK_SCLK_JPEG_MSCL>,

		       <&cmu_top CLK_ACLK_MSCL_400>;

	};



	cmu_mfc: clock-controller@15280000 {

		compatible = "samsung,exynos5433-cmu-mfc";

		reg = <0x15280000 0x0b08>;

		#clock-cells = <1>;



		clock-names = "oscclk", "aclk_mfc_400";

		clocks = <&xxti>, <&cmu_top CLK_ACLK_MFC_400>;

	};



	cmu_hevc: clock-controller@14f80000 {

		compatible = "samsung,exynos5433-cmu-hevc";

		reg = <0x14f80000 0x0b08>;

		#clock-cells = <1>;



		clock-names = "oscclk", "aclk_hevc_400";

		clocks = <&xxti>, <&cmu_top CLK_ACLK_HEVC_400>;

	};



	cmu_isp: clock-controller@146d0000 {

		compatible = "samsung,exynos5433-cmu-isp";

		reg = <0x146d0000 0x0b0c>;

		#clock-cells = <1>;



		clock-names = "oscclk",

			"aclk_isp_dis_400",

			"aclk_isp_400";

		clocks = <&xxti>,

		       <&cmu_top CLK_ACLK_ISP_DIS_400>,

		       <&cmu_top CLK_ACLK_ISP_400>;

	};



	cmu_cam0: clock-controller@120d0000 {

		compatible = "samsung,exynos5433-cmu-cam0";

		reg = <0x120d0000 0x0b0c>;

		#clock-cells = <1>;



		clock-names = "oscclk",

			"aclk_cam0_333",

			"aclk_cam0_400",

			"aclk_cam0_552";

		clocks = <&xxti>,

		       <&cmu_top CLK_ACLK_CAM0_333>,

		       <&cmu_top CLK_ACLK_CAM0_400>,

		       <&cmu_top CLK_ACLK_CAM0_552>;

	};



	cmu_cam1: clock-controller@145d0000 {

		compatible = "samsung,exynos5433-cmu-cam1";

		reg = <0x145d0000 0x0b08>;

		#clock-cells = <1>;



		clock-names = "oscclk",

			"sclk_isp_uart_cam1",

			"sclk_isp_spi1_cam1",

			"sclk_isp_spi0_cam1",

			"aclk_cam1_333",

			"aclk_cam1_400",

			"aclk_cam1_552";

		clocks = <&xxti>,

		       <&cmu_top CLK_SCLK_ISP_UART_CAM1>,

		       <&cmu_top CLK_SCLK_ISP_SPI1_CAM1>,

		       <&cmu_top CLK_SCLK_ISP_SPI0_CAM1>,

		       <&cmu_top CLK_ACLK_CAM1_333>,

		       <&cmu_top CLK_ACLK_CAM1_400>,

		       <&cmu_top CLK_ACLK_CAM1_552>;

	};



Example 3: UART controller node that consumes the clock generated by the clock

	   controller.



	serial_0: serial@14C10000 {

		compatible = "samsung,exynos5433-uart";

		reg = <0x14C10000 0x100>;

		interrupts = <0 421 0>;

		clocks = <&cmu_peric CLK_PCLK_UART0>,

			 <&cmu_peric CLK_SCLK_UART0>;

		clock-names = "uart", "clk_uart_baud0";

		pinctrl-names = "default";

		pinctrl-0 = <&uart0_bus>;

		status = "disabled";

	};

drivers/clk/samsung/Makefile

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@@ -10,6 +10,7 @@ obj-$(CONFIG_SOC_EXYNOS5250) += clk-exynos5250.o 
obj-$(CONFIG_SOC_EXYNOS5260)	+= clk-exynos5260.o

obj-$(CONFIG_SOC_EXYNOS5410)	+= clk-exynos5410.o

obj-$(CONFIG_SOC_EXYNOS5420)	+= clk-exynos5420.o

obj-$(CONFIG_ARCH_EXYNOS5433)	+= clk-exynos5433.o

obj-$(CONFIG_SOC_EXYNOS5440)	+= clk-exynos5440.o

obj-$(CONFIG_ARCH_EXYNOS)	+= clk-exynos-audss.o

obj-$(CONFIG_ARCH_EXYNOS)	+= clk-exynos-clkout.o

drivers/clk/samsung/clk-exynos-clkout.c

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Original line number Diff line number Diff line
@@ -151,3 +151,5 @@ CLK_OF_DECLARE(exynos5250_clkout, "samsung,exynos5250-pmu", 
		exynos5_clkout_init);

CLK_OF_DECLARE(exynos5420_clkout, "samsung,exynos5420-pmu",

		exynos5_clkout_init);

CLK_OF_DECLARE(exynos5433_clkout, "samsung,exynos5433-pmu",

		exynos5_clkout_init);

drivers/clk/samsung/clk-exynos5433.c

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