Subject: [PATCH v8 06/12] ARM: dts: Add description of System MMU of Exynos SoCs

From: [email-masked] (Cho KyongHo)
Date: Mon, 05 Aug 2013 20:16:40 +0900

> -----Original Message-----
> From: Bartlomiej Zolnierkiewicz [mailto:b.zolnierkie at samsung.com]
> Sent: Saturday, August 03, 2013 2:14 AM
> 
> Hi,
> 
> On Friday, July 26, 2013 08:28:19 PM Cho KyongHo wrote:
> > Signed-off-by: Cho KyongHo <[email-masked]>
> > ---
> >  .../bindings/iommu/samsung,exynos4210-sysmmu.txt   |  103 +++++++
> >  arch/arm/boot/dts/exynos4.dtsi                     |  122 ++++++++
> >  arch/arm/boot/dts/exynos4210.dtsi                  |   25 ++
> >  arch/arm/boot/dts/exynos4x12.dtsi                  |   76 +++++
> >  arch/arm/boot/dts/exynos5250.dtsi                  |  291 ++++++++++++++++++++
> >  5 files changed, 617 insertions(+), 0 deletions(-)
> >  create mode 100644 Documentation/devicetree/bindings/iommu/samsung,exynos4210-sysmmu.txt
> >
> > diff --git a/Documentation/devicetree/bindings/iommu/samsung,exynos4210-sysmmu.txt
> > b/Documentation/devicetree/bindings/iommu/samsung,exynos4210-sysmmu.txt
> > new file mode 100644
> > index 0000000..92f0a33
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/iommu/samsung,exynos4210-sysmmu.txt
> > @@ -0,0 +1,103 @@
> > +Samsung Exynos4210 IOMMU H/W, System MMU (System Memory Management Unit)
> > +
> > +Samsung's Exynos architecture contains System MMU that enables scattered
> > +physical memory chunks visible as a contiguous region to DMA-capable peripheral
> > +devices like MFC, FIMC, FIMD, GScaler, FIMC-IS and so forth.
> > +
> > +System MMU is a sort of IOMMU and support identical translation table format to
> > +ARMv7 translation tables with minimum set of page properties including access
> > +permissions, shareability and security protection. In addition, System MMU has
> > +another capabilities like L2 TLB or block-fetch buffers to minimize translation
> > +latency.
> > +
> > +A System MMU is dedicated to a single master peripheral device.  Thus, it is
> > +important to specify the correct System MMU in the device node of its master
> > +device. Whereas a System MMU is dedicated to a master device, the master device
> > +may have more than one System MMU.
> > +
> > +Required properties:
> > +- compatible: Should be "samsung,exynos4210-sysmmu"
> > +- reg: A tuple of base address and size of System MMU registers.
> > +- interrupt-parent: The phandle of the interrupt controller of System MMU
> > +- interrupts: A tuple of numbers that indicates the interrupt source.
> > +- clock-names: Should be "sysmmu" if the System MMU is needed to gate its clock.
> > +               Please refer to the following documents:
> > +	       Documentation/devicetree/bindings/clock/clock-bindings.txt
> > +	       Documentation/devicetree/bindings/clock/exynos4-clock.txt
> > +	       Documentation/devicetree/bindings/clock/exynos5250-clock.txt
> > +	       Optional "master" if the clock to the System MMU is gated by
> > +	       another gate clock other than "sysmmu". The System MMU driver
> > +	       sets "master" the parent of "sysmmu".
> > +	       Exynos4 SoCs, there needs no "master" clocks.
> > +	       Exynos5 SoCs, some System MMUs must have "master" clocks.
> > +- clocks: Required if the System MMU is needed to gate its clock.
> > +	  Please refer to the documents listed above.
> > +- samsung,power-domain: Required if the System MMU is needed to gate its power.
> > +	  Please refer to the following document:
> > +	  Documentation/devicetree/bindings/arm/exynos/power_domain.txt
> > +
> > +Required properties for the master peripheral devices:
> > +- iommu: phandles to the System MMUs of the device
> > +
> > +Examples:
> > +A System MMU is dedicated to a single master device.
> > +	gsc_0:  gsc at 0x13e00000 {
> > +		compatible = "samsung,exynos5-gsc";
> > +		reg = <0x13e00000 0x1000>;
> > +		interrupts = <0 85 0>;
> > +		samsung,power-domain = <&pd_gsc>;
> > +		clocks = <&clock 256>;
> > +		clock-names = "gscl";
> > +		iommu = <&sysmmu_gsc1>;
> > +	};
> > +
> > +	sysmmu_gsc0: sysmmu at 13E80000 {
> > +		compatible = "samsung,exynos4210-sysmmu";
> > +		reg = <0x13E80000 0x1000>;
> > +		interrupt-parent = <&combiner>;
> > +		interrupt-names = "sysmmu-gsc0";
> > +		interrupts = <2 0>;
> > +		clock-names = "sysmmu", "master";
> > +		clocks = <&clock 262>, <&clock 256>;
> > +		samsung,power-domain = <&pd_gsc>;
> > +		status = "ok";
> > +	};
> > +
> > +MFC has 2 System MMUs for each port that MFC is attached. Thus it seems natural
> > +to define 2 System MMUs for each port of the MFC:
> 
> Marek Szyprowski (added to cc:) has a patch fixing MFC to create separate
> mfc_l and mfc_r devices (like it was in the past). Using this patch it
> would be possible to bind sysmmu_mfc_l to mfc_l device and sysmmu_mfc_r to
> mfc_r device. This probably also requires adding some MFC specific handling
> in a device tree node and to the new master's device PM ops (in patch #10)
> as previously (in our trees) sysmmu_mfc r device was set as parent of
> sysmmu_mfc_l device which in turn was a parent for main MFC device (to make
> runtime Power Management work). However because MFC is the only device
> requiring use of multiple System MMUs above changes would allow us (unless
> I'm missing something?) to use just one System MMU device per struct
> exynos_iommu_client instance (making driver a lot simpler).
> 

Does it mean that we can make the exynos-iommu driver simpler
with Marek Szyprowski's patch?
It is welcome but I don't think it covers all topologies of System MMU and
master H/W. Those are getting more complex.

> > +	mfc: codec at 13400000 {
> > +		compatible = "samsung,mfc-v5";
> > +		reg = <0x13400000 0x10000>;
> > +		interrupts = <0 94 0>;
> > +		samsung,power-domain = <&pd_mfc>;
> > +		clocks = <&clock 170>, <&clock 273>;
> > +		clock-names = "sclk_mfc", "mfc";
> > +		status = "ok";
> > +		iommu = <&sysmmu_mfc_l>, <&sysmmu_mfc_r>;
> > +	};
> > +
> > +	sysmmu_mfc_l: sysmmu at 13620000 {
> > +		compatible = "samsung,exynos4210-sysmmu";
> > +		reg = <0x13620000 0x1000>;
> > +		interrupt-parent = <&combiner>;
> > +		interrupt-names = "sysmmu-mfc-l";
> > +		interrupts = <5 5>;
> > +		clock-names = "sysmmu";
> > +		clocks = <&clock 274>;
> > +		samsung,power-domain = <&pd_mfc>;
> > +		status = "ok";
> > +	};
> > +
> > +	sysmmu_mfc_r: sysmmu at 13630000 {
> > +		compatible = "samsung,exynos4210-sysmmu";
> > +		reg = <0x13630000 0x1000>;
> > +		interrupt-parent = <&combiner>;
> > +		interrupt-names = "sysmmu-mfc-r";
> > +		interrupts = <5 6>;
> > +		clock-names = "sysmmu";
> > +		clocks = <&clock 275>;
> > +		samsung,power-domain = <&pd_mfc>;
> > +		status = "ok";
> > +	};
> > +
> > diff --git a/arch/arm/boot/dts/exynos4.dtsi b/arch/arm/boot/dts/exynos4.dtsi
> > index 359694c..ba74ee8 100644
> > --- a/arch/arm/boot/dts/exynos4.dtsi
> > +++ b/arch/arm/boot/dts/exynos4.dtsi
> > @@ -161,6 +161,7 @@
> >  		interrupts = <0 94 0>;
> >  		samsung,power-domain = <&pd_mfc>;
> >  		status = "disabled";
> > +		iommu = <&sysmmu_mfc_l>, <&sysmmu_mfc_r>;
> >  	};
> >
> >  	serial at 13800000 {
> > @@ -395,5 +396,126 @@
> >  		clock-names = "sclk_fimd", "fimd";
> >  		samsung,power-domain = <&pd_lcd0>;
> >  		status = "disabled";
> > +		iommu = <&sysmmu_fimd0>;
> > +	};
> > +
> > +	sysmmu_mfc_l: sysmmu at 13620000 {
> > +		compatible = "samsung,exynos4210-sysmmu";
> > +		reg = <0x13620000 0x1000>;
> > +		interrupt-parent = <&combiner>;
> > +		interrupt-names = "sysmmu-mfc-l";
> > +		interrupts = <5 5>;
> > +		clock-names = "sysmmu";
> > +		clocks = <&clock 274>;
> > +		samsung,power-domain = <&pd_mfc>;
> > +		status = "ok";
> > +	};
> > +
> > +	sysmmu_mfc_r: sysmmu at 13630000 {
> > +		compatible = "samsung,exynos4210-sysmmu";
> > +		reg = <0x13630000 0x1000>;
> > +		interrupt-parent = <&combiner>;
> > +		interrupt-names = "sysmmu-mfc-r";
> > +		interrupts = <5 6>;
> > +		clock-names = "sysmmu";
> > +		clocks = <&clock 275>;
> > +		samsung,power-domain = <&pd_mfc>;
> > +		status = "ok";
> > +	};
> > +
> > +	sysmmu_tv: sysmmu at 13E20000 {
> > +		compatible = "samsung,exynos4210-sysmmu";
> > +		reg = <0x13E20000 0x1000>;
> > +		interrupt-parent = <&combiner>;
> > +		interrupt-names = "sysmmu-tv";
> > +		interrupts = <5 4>;
> > +		clock-names = "sysmmu";
> > +		clocks = <&clock 272>;
> > +		samsung,power-domain = <&pd_tv>;
> > +		status = "ok";
> > +	};
> > +
> > +	sysmmu_fimc0: sysmmu at 11A20000 {
> > +		compatible = "samsung,exynos4210-sysmmu";
> > +		reg = <0x11A20000 0x1000>;
> > +		interrupt-parent = <&combiner>;
> > +		interrupt-names = "sysmmu-fimc0";
> > +		interrupts = <4 2>;
> > +		clock-names = "sysmmu";
> > +		clocks = <&clock 263>;
> > +		samsung,power-domain = <&pd_cam>;
> > +		status = "ok";
> > +	};
> > +
> > +	sysmmu_fimc1: sysmmu at 11A30000 {
> > +		compatible = "samsung,exynos4210-sysmmu";
> > +		reg = <0x11A30000 0x1000>;
> > +		interrupt-parent = <&combiner>;
> > +		interrupt-names = "sysmmu-fimc1";
> > +		interrupts = <4 3>;
> > +		clock-names = "sysmmu";
> > +		clocks = <&clock 264>;
> > +		samsung,power-domain = <&pd_cam>;
> > +		status = "ok";
> > +	};
> > +
> > +	sysmmu_fimc2: sysmmu at 11A40000 {
> > +		compatible = "samsung,exynos4210-sysmmu";
> > +		reg = <0x11A40000 0x1000>;
> > +		interrupt-parent = <&combiner>;
> > +		interrupt-names = "sysmmu-fimc2";
> > +		interrupts = <4 4>;
> > +		clock-names = "sysmmu";
> > +		clocks = <&clock 265>;
> > +		samsung,power-domain = <&pd_cam>;
> > +		status = "ok";
> > +	};
> > +
> > +	sysmmu_fimc3: sysmmu at 11A50000 {
> > +		compatible = "samsung,exynos4210-sysmmu";
> > +		reg = <0x11A50000 0x1000>;
> > +		interrupt-parent = <&combiner>;
> > +		interrupt-names = "sysmmu-fimc3";
> > +		interrupts = <4 5>;
> > +		clock-names = "sysmmu";
> > +		clocks = <&clock 266>;
> > +		samsung,power-domain = <&pd_cam>;
> > +		status = "ok";
> > +	};
> > +
> > +	sysmmu_jpeg: sysmmu at 11A60000 {
> > +		compatible = "samsung,exynos4210-sysmmu";
> > +		reg = <0x11A60000 0x1000>;
> > +		interrupt-parent = <&combiner>;
> > +		interrupt-names = "sysmmu-jpeg";
> > +		interrupts = <4 6>;
> > +		clock-names = "sysmmu";
> > +		clocks = <&clock 267>;
> > +		samsung,power-domain = <&pd_cam>;
> > +		status = "ok";
> > +	};
> > +
> > +	sysmmu_rotator: sysmmu at 12A30000 {
> > +		compatible = "samsung,exynos4210-sysmmu";
> > +		reg = <0x12A30000 0x1000>;
> > +		interrupt-parent = <&combiner>;
> > +		interrupt-names = "sysmmu-rotator";
> > +		interrupts = <5 0>;
> > +		clock-names = "sysmmu";
> > +		clocks = <&clock 281>;
> > +		samsung,power-domain = <&pd_lcd0>;
> > +		status = "ok";
> > +	};
> > +
> > +	sysmmu_fimd0: sysmmu at 11E20000 {
> > +		compatible = "samsung,exynos4210-sysmmu";
> > +		reg = <0x11E20000 0x1000>;
> > +		interrupt-parent = <&combiner>;
> > +		interrupt-names = "sysmmu-fimd0";
> > +		interrupts = <5 2>;
> > +		clock-names = "sysmmu";
> > +		clocks = <&clock 287>;
> > +		samsung,power-domain = <&pd_lcd0>;
> > +		status = "ok";
> >  	};
> >  };
> > diff --git a/arch/arm/boot/dts/exynos4210.dtsi b/arch/arm/boot/dts/exynos4210.dtsi
> > index 54710de..09b13da 100644
> > --- a/arch/arm/boot/dts/exynos4210.dtsi
> > +++ b/arch/arm/boot/dts/exynos4210.dtsi
> > @@ -119,5 +119,30 @@
> >  		reg = <0x12800000 0x1000>;
> >  		interrupts = <0 89 0>;
> >  		status = "disabled";
> > +		iommu = <&sysmmu_g2d>;
> > +	};
> > +
> > +	sysmmu_g2d: sysmmu at 12A20000 {
> > +		compatible = "samsung,exynos4210-sysmmu";
> > +		reg = <0x12A20000 0x1000>;
> > +		interrupt-parent = <&combiner>;
> > +		interrupt-names = "sysmmu-g2d";
> > +		interrupts = <4 7>;
> > +		clock-names = "sysmmu";
> > +		clocks = <&clock 280>;
> > +		samsung,power-domain = <&pd_lcd0>;
> > +		status = "ok";
> > +	};
> > +
> > +	sysmmu_fimd1: sysmmu at 12220000 {
> > +		compatible = "samsung,exynos4210-sysmmu";
> > +		interrupt-parent = <&combiner>;
> > +		interrupt-names = "sysmmu-fimd1";
> > +		reg = <0x12220000 0x1000>;
> > +		interrupts = <5 3>;
> > +		clock-names = "sysmmu";
> > +		clocks = <&clock 291>;
> > +		samsung,power-domain = <&pd_lcd1>;
> > +		status = "ok";
> >  	};
> >  };
> > diff --git a/arch/arm/boot/dts/exynos4x12.dtsi b/arch/arm/boot/dts/exynos4x12.dtsi
> > index e3380a7..681db32 100644
> > --- a/arch/arm/boot/dts/exynos4x12.dtsi
> > +++ b/arch/arm/boot/dts/exynos4x12.dtsi
> > @@ -79,4 +79,80 @@
> >  		interrupts = <0 89 0>;
> >  		status = "disabled";
> >  	};
> > +
> > +	sysmmu_g2d: sysmmu at 10A40000{
> > +		compatible = "samsung,exynos4210-sysmmu";
> > +		reg = <0x10A40000 0x1000>;
> > +		interrupt-parent = <&combiner>;
> > +		interrupt-names = "sysmmu-g2d";
> > +		interrupts = <4 7>;
> > +		clock-names = "sysmmu";
> > +		status = "ok";
> > +	};
> > +
> > +	sysmmu_fimc_isp: sysmmu at 12260000 {
> > +		compatible = "samsung,exynos4210-sysmmu";
> > +		reg = <0x12260000 0x1000>;
> > +		interrupt-parent = <&combiner>;
> > +		interrupt-names = "sysmmu-fimc_isp";
> > +		interrupts = <16 2>;
> > +		clock-names = "sysmmu";
> > +		clocks = <&clock 362>;
> > +		status = "ok";
> > +	};
> > +
> > +	sysmmu_fimc_drc: sysmmu at 12270000 {
> > +		compatible = "samsung,exynos4210-sysmmu";
> > +		reg = <0x12270000 0x1000>;
> > +		interrupt-parent = <&combiner>;
> > +		interrupt-names = "sysmmu-fimc_drc";
> > +		interrupts = <16 3>;
> > +		clock-names = "sysmmu";
> > +		clocks = <&clock 363>;
> > +		status = "ok";
> > +	};
> > +
> > +	sysmmu_fimc_fd: sysmmu at 122A0000 {
> > +		compatible = "samsung,exynos4210-sysmmu";
> > +		reg = <0x122A0000 0x1000>;
> > +		interrupt-parent = <&combiner>;
> > +		interrupt-names = "sysmmu-fimc_fd";
> > +		interrupts = <16 4>;
> > +		clock-names = "sysmmu";
> > +		clocks = <&clock 364>;
> > +		status = "ok";
> > +	};
> > +
> > +	sysmmu_fimc_mcuctl: sysmmu at 122B0000 {
> > +		compatible = "samsung,exynos4210-sysmmu";
> > +		reg = <0x122B0000 0x1000>;
> > +		interrupt-parent = <&combiner>;
> > +		interrupt-names = "sysmmu-fimc_mcuctl";
> > +		interrupts = <16 5>;
> > +		clock-names = "sysmmu";
> > +		clocks = <&clock 376>;
> > +		status = "ok";
> > +	};
> > +
> > +	sysmmu_fimc_lite0: sysmmu at 123B0000 {
> > +		compatible = "samsung,exynos4210-sysmmu";
> > +		reg = <0x123B0000 0x1000>;
> > +		interrupt-parent = <&combiner>;
> > +		interrupt-names = "sysmmu-fimc_lite0";
> > +		interrupts = <16 0>;
> > +		clock-names = "sysmmu";
> > +		clocks = <&clock 366>;
> > +		status = "ok";
> > +	};
> > +
> > +	sysmmu_fimc_lite1: sysmmu at 123C0000 {
> > +		compatible = "samsung,exynos4210-sysmmu";
> > +		reg = <0x123C0000 0x1000>;
> > +		interrupt-parent = <&combiner>;
> > +		interrupt-names = "sysmmu-fimc_lite1";
> > +		interrupts = <16 1>;
> > +		clock-names = "sysmmu";
> > +		clocks = <&clock 365>;
> > +		status = "ok";
> > +	};
> >  };
> > diff --git a/arch/arm/boot/dts/exynos5250.dtsi b/arch/arm/boot/dts/exynos5250.dtsi
> > index fc9fb3d..130d23d 100644
> > --- a/arch/arm/boot/dts/exynos5250.dtsi
> > +++ b/arch/arm/boot/dts/exynos5250.dtsi
> > @@ -66,6 +66,16 @@
> >  		reg = <0x10044040 0x20>;
> >  	};
> >
> > +	pd_isp: mfc-power-domain at 0x10044020 {
> > +		compatible = "samsung,exynos4210-pd";
> > +		reg = <0x10044020 0x20>;
> > +	};
> > +
> > +	pd_disp1: mfc-power-domain at 0x100440A0 {
> > +		compatible = "samsung,exynos4210-pd";
> > +		reg = <0x100440A0 0x20>;
> > +	};
> > +
> >  	clock: clock-controller at 0x10010000 {
> >  		compatible = "samsung,exynos5250-clock";
> >  		reg = <0x10010000 0x30000>;
> > @@ -180,6 +190,7 @@
> >  		reg = <0x11000000 0x10000>;
> >  		interrupts = <0 96 0>;
> >  		samsung,power-domain = <&pd_mfc>;
> > +		iommu = <&sysmmu_mfc_l &sysmmu_mfc_l>;
> 
> Shouldn't it be:
> 
> 	iommu = <&sysmmu_mfc_l>, <&sysmmu_mfc_r>;
> 
> ?

Oh. yes you are right.
Thanks.

> 
> Best regards,
> --
> Bartlomiej Zolnierkiewicz
> Samsung R&D Institute Poland
> Samsung Electronics
> 
> >  	};
> >
> >  	rtc {
> > @@ -571,6 +582,7 @@
> >  		samsung,power-domain = <&pd_gsc>;
> >  		clocks = <&clock 256>;
> >  		clock-names = "gscl";
> > +		iommu = <&sysmmu_gsc1>;
> >  	};
> >
> >  	gsc_1:  gsc at 0x13e10000 {
> > @@ -580,6 +592,7 @@
> >  		samsung,power-domain = <&pd_gsc>;
> >  		clocks = <&clock 257>;
> >  		clock-names = "gscl";
> > +		iommu = <&sysmmu_gsc1>;
> >  	};
> >
> >  	gsc_2:  gsc at 0x13e20000 {
> > @@ -589,6 +602,7 @@
> >  		samsung,power-domain = <&pd_gsc>;
> >  		clocks = <&clock 258>;
> >  		clock-names = "gscl";
> > +		iommu = <&sysmmu_gsc2>;
> >  	};
> >
> >  	gsc_3:  gsc at 0x13e30000 {
> > @@ -598,6 +612,7 @@
> >  		samsung,power-domain = <&pd_gsc>;
> >  		clocks = <&clock 259>;
> >  		clock-names = "gscl";
> > +		iommu = <&sysmmu_gsc3>;
> >  	};
> >
> >  	hdmi {
> > @@ -614,6 +629,7 @@
> >  		compatible = "samsung,exynos5-mixer";
> >  		reg = <0x14450000 0x10000>;
> >  		interrupts = <0 94 0>;
> > +		iommu = <&sysmmu_tv>;
> >  	};
> >
> >  	dp-controller {
> > @@ -638,5 +654,280 @@
> >  		interrupts = <18 4>, <18 5>, <18 6>;
> >  		clocks = <&clock 133>, <&clock 339>;
> >  		clock-names = "sclk_fimd", "fimd";
> > +		iommu = <&sysmmu_fimd1>;
> > +	};
> > +
> > +	sysmmu_mfc_l: sysmmu at 11210000 {
> > +		compatible = "samsung,exynos4210-sysmmu";
> > +		reg = <0x11210000 0x1000>;
> > +		interrupt-parent = <&combiner>;
> > +		interrupt-names = "sysmmu-mfc_l";
> > +		interrupts = <8 5>;
> > +		clock-names = "sysmmu", "master";
> > +		clocks = <&clock 267>, <&clock 266>;
> > +		samsung,power-domain = <&pd_mfc>;
> > +		status = "ok";
> > +	};
> > +
> > +	sysmmu_mfc_r: sysmmu at 11200000 {
> > +		compatible = "samsung,exynos4210-sysmmu";
> > +		reg = <0x11200000 0x1000>;
> > +		interrupt-parent = <&combiner>;
> > +		interrupt-names = "sysmmu-mfc_r";
> > +		interrupts = <6 2>;
> > +		clock-names = "sysmmu", "master";
> > +		clocks = <&clock 268>, <&clock 266>;
> > +		samsung,power-domain = <&pd_mfc>;
> > +		status = "ok";
> > +	};
> > +
> > +	sysmmu_tv: sysmmu at 14650000 {
> > +		compatible = "samsung,exynos4210-sysmmu";
> > +		reg = <0x14650000 0x1000>;
> > +		interrupt-parent = <&combiner>;
> > +		interrupt-names = "sysmmu-tv";
> > +		interrupts = <7 4>;
> > +		clock-names = "sysmmu";
> > +		clocks = <&clock 349>;
> > +		samsung,power-domain = <&pd_disp1>;
> > +		status = "ok";
> > +	};
> > +
> > +	sysmmu_gsc0: sysmmu at 13E80000 {
> > +		compatible = "samsung,exynos4210-sysmmu";
> > +		reg = <0x13E80000 0x1000>;
> > +		interrupt-parent = <&combiner>;
> > +		interrupt-names = "sysmmu-gsc0";
> > +		interrupts = <2 0>;
> > +		clock-names = "sysmmu", "master";
> > +		clocks = <&clock 262>, <&clock 256>;
> > +		samsung,power-domain = <&pd_gsc>;
> > +		status = "ok";
> > +	};
> > +
> > +	sysmmu_gsc1: sysmmu at 13E90000 {
> > +		compatible = "samsung,exynos4210-sysmmu";
> > +		reg = <0x13E90000 0x1000>;
> > +		interrupt-parent = <&combiner>;
> > +		interrupt-names = "sysmmu-gsc1";
> > +		interrupts = <2 2>;
> > +		clock-names = "sysmmu", "master";
> > +		clocks = <&clock 263>, <&clock 257>;
> > +		samsung,power-domain = <&pd_gsc>;
> > +		status = "ok";
> > +	};
> > +
> > +	sysmmu_gsc2: sysmmu at 13EA0000 {
> > +		compatible = "samsung,exynos4210-sysmmu";
> > +		reg = <0x13EA0000 0x1000>;
> > +		interrupt-parent = <&combiner>;
> > +		interrupt-names = "sysmmu-gsc2";
> > +		interrupts = <2 4>;
> > +		clock-names = "sysmmu", "master";
> > +		clocks = <&clock 264>, <&clock 258>;
> > +		samsung,power-domain = <&pd_gsc>;
> > +		status = "ok";
> > +	};
> > +
> > +	sysmmu_gsc3: sysmmu at 13EB0000 {
> > +		compatible = "samsung,exynos4210-sysmmu";
> > +		reg = <0x13EB0000 0x1000>;
> > +		interrupt-parent = <&combiner>;
> > +		interrupt-names = "sysmmu-gsc3";
> > +		interrupts = <2 6>;
> > +		clock-names = "sysmmu", "master";
> > +		clocks = <&clock 265>, <&clock 259>;
> > +		samsung,power-domain = <&pd_gsc>;
> > +		status = "ok";
> > +	};
> > +
> > +	sysmmu_fimd1: sysmmu at 14640000 {
> > +		compatible = "samsung,exynos4210-sysmmu";
> > +		reg = <0x14640000 0x1000>;
> > +		interrupt-parent = <&combiner>;
> > +		interrupt-names = "sysmmu-fimd1";
> > +		interrupts = <3 2>;
> > +		clock-names = "sysmmu";
> > +		clocks = <&clock 350>;
> > +		samsung,power-domain = <&pd_disp1>;
> > +		status = "ok";
> > +	};
> > +
> > +	sysmmu_rotator: sysmmu at 11D40000 {
> > +		compatible = "samsung,exynos4210-sysmmu";
> > +		reg = <0x11D40000 0x1000>;
> > +		interrupt-parent = <&combiner>;
> > +		interrupt-names = "sysmmu-rotator";
> > +		interrupts = <4 0>;
> > +		clock-names = "sysmmu";
> > +		clocks = <&clock 272>;
> > +		status = "ok";
> > +	};
> > +
> > +	sysmmu_fimc_isp: sysmmu at 13260000 {
> > +		compatible = "samsung,exynos4210-sysmmu";
> > +		reg = <0x13260000 0x1000>;
> > +		interrupt-parent = <&combiner>;
> > +		interrupt-names = "sysmmu-fimc_isp";
> > +		interrupts = <10 6>;
> > +		clock-names = "sysmmu";
> > +		clocks = <&clock 361>;
> > +		samsung,power-domain = <&pd_isp>;
> > +		status = "ok";
> > +	};
> > +
> > +	sysmmu_fimc_drc: sysmmu at 13270000 {
> > +		compatible = "samsung,exynos4210-sysmmu";
> > +		reg = <0x13270000 0x1000>;
> > +		interrupt-parent = <&combiner>;
> > +		interrupt-names = "sysmmu-fimc_drc";
> > +		interrupts = <11 6>;
> > +		clock-names = "sysmmu";
> > +		clocks = <&clock 362>;
> > +		samsung,power-domain = <&pd_isp>;
> > +		status = "ok";
> > +	};
> > +
> > +	sysmmu_fimc_fd: sysmmu at 132A0000 {
> > +		compatible = "samsung,exynos4210-sysmmu";
> > +		reg = <0x132A0000 0x1000>;
> > +		interrupt-parent = <&combiner>;
> > +		interrupt-names = "sysmmu-fimc_fd";
> > +		interrupts = <5 0>;
> > +		clock-names = "sysmmu";
> > +		clocks = <&clock 363>;
> > +		samsung,power-domain = <&pd_isp>;
> > +		status = "ok";
> > +	};
> > +
> > +	sysmmu_fimc_scc: sysmmu at 13280000 {
> > +		compatible = "samsung,exynos4210-sysmmu";
> > +		reg = <0x13280000 0x1000>;
> > +		interrupt-parent = <&combiner>;
> > +		interrupt-names = "sysmmu-fimc_scalerc";
> > +		interrupts = <5 2>;
> > +		clock-names = "sysmmu";
> > +		clocks = <&clock 364>;
> > +		samsung,power-domain = <&pd_isp>;
> > +		status = "ok";
> > +	};
> > +
> > +	sysmmu_fimc_scp: sysmmu at 13290000 {
> > +		compatible = "samsung,exynos4210-sysmmu";
> > +		reg = <0x13290000 0x1000>;
> > +		interrupt-parent = <&combiner>;
> > +		interrupt-names = "sysmmu-fimc_scalerp";
> > +		interrupts = <3 6>;
> > +		clock-names = "sysmmu";
> > +		clocks = <&clock 365>;
> > +		samsung,power-domain = <&pd_isp>;
> > +		status = "ok";
> > +	};
> > +
> > +	sysmmu_fimc_mcuctl: sysmmu at 132B0000 {
> > +		compatible = "samsung,exynos4210-sysmmu";
> > +		reg = <0x132B0000 0x1000>;
> > +		interrupt-parent = <&combiner>;
> > +		interrupt-names = "sysmmu-fimc_mcuctl";
> > +		interrupts = <5 4>;
> > +		clock-names = "sysmmu";
> > +		clocks = <&clock 366>;
> > +		samsung,power-domain = <&pd_isp>;
> > +		status = "ok";
> > +	};
> > +
> > +	sysmmu_fimc_odc: sysmmu at 132C0000 {
> > +		compatible = "samsung,exynos4210-sysmmu";
> > +		reg = <0x132C0000 0x1000>;
> > +		interrupt-parent = <&combiner>;
> > +		interrupt-names = "sysmmu-fimc_odc";
> > +		interrupts = <11 0>;
> > +		clock-names = "sysmmu";
> > +		clocks = <&clock 367>;
> > +		samsung,power-domain = <&pd_isp>;
> > +		status = "ok";
> > +	};
> > +
> > +	sysmmu_fimc_dis0: sysmmu at 132D0000 {
> > +		compatible = "samsung,exynos4210-sysmmu";
> > +		reg = <0x132D0000 0x1000>;
> > +		interrupt-parent = <&combiner>;
> > +		interrupt-names = "sysmmu-fimc_dis0";
> > +		interrupts = <10 4>;
> > +		clock-names = "sysmmu";
> > +		clocks = <&clock 368>;
> > +		samsung,power-domain = <&pd_isp>;
> > +		status = "ok";
> > +	};
> > +
> > +	sysmmu_fimc_dis1: sysmmu at 132E0000{
> > +		compatible = "samsung,exynos4210-sysmmu";
> > +		reg = <0x132E0000 0x1000>;
> > +		interrupt-parent = <&combiner>;
> > +		interrupt-names = "sysmmu-fimc_dis1";
> > +		interrupts = <9 4>;
> > +		clock-names = "sysmmu";
> > +		clocks = <&clock 369>;
> > +		samsung,power-domain = <&pd_isp>;
> > +		status = "ok";
> > +	};
> > +
> > +	sysmmu_fimc_3dnr: sysmmu at 132F0000 {
> > +		compatible = "samsung,exynos4210-sysmmu";
> > +		reg = <0x132F0000 0x1000>;
> > +		interrupt-parent = <&combiner>;
> > +		interrupt-names = "sysmmu-fimc_3dnr";
> > +		interrupts = <5 6>;
> > +		clock-names = "sysmmu";
> > +		clocks = <&clock 370>;
> > +		samsung,power-domain = <&pd_isp>;
> > +		status = "ok";
> > +	};
> > +
> > +	sysmmu_fimc_lite0: sysmmu at 13C40000 {
> > +		compatible = "samsung,exynos4210-sysmmu";
> > +		reg = <0x13C40000 0x1000>;
> > +		interrupt-parent = <&combiner>;
> > +		interrupt-names = "sysmmu-fimc_lite0";
> > +		interrupts = <3 4>;
> > +		clock-names = "sysmmu", "master";
> > +		clocks = <&clock 346>, <&clock 345>;
> > +		samsung,power-domain = <&pd_gsc>;
> > +		status = "ok";
> > +	};
> > +
> > +	sysmmu_fimc_lite1: sysmmu at 13C50000 {
> > +		compatible = "samsung,exynos4210-sysmmu";
> > +		reg = <0x13C50000 0x1000>;
> > +		interrupt-parent = <&combiner>;
> > +		interrupt-names = "sysmmu-fimc_lite1";
> > +		interrupts = <24 1>;
> > +		clock-names = "sysmmu", "master";
> > +		clocks = <&clock 347>, <&clock 345>;
> > +		samsung,power-domain = <&pd_gsc>;
> > +		status = "ok";
> > +	};
> > +
> > +	sysmmu_fimc_jpeg: sysmmu at 11F20000 {
> > +		compatible = "samsung,exynos4210-sysmmu";
> > +		reg = <0x11F20000 0x1000>;
> > +		interrupt-parent = <&combiner>;
> > +		interrupt-names = "sysmmu-jpeg";
> > +		interrupts = <4 2>;
> > +		clock-names = "sysmmu", "master";
> > +		clocks = <&clock 273>, <&clock 270>;
> > +		samsung,power-domain = <&pd_gsc>;
> > +		status = "ok";
> > +	};
> > +
> > +	sysmmu_fimc_2d: sysmmu at 10A60000 {
> > +		compatible = "samsung,exynos4210-sysmmu";
> > +		reg = <0x10A60000 0x1000>;
> > +		interrupt-parent = <&combiner>;
> > +		interrupt-names = "sysmmu-2d";
> > +		interrupts = <24 5>;
> > +		clock-names = "sysmmu";
> > +		clocks = <&clock 361>;
> > +		status = "ok";
> >  	};
> >  };