From mboxrd@z Thu Jan 1 00:00:00 1970 From: Robin Murphy Subject: [PATCH 1/3] arm64/dts: Add SMMUs to Juno Date: Mon, 17 Oct 2016 13:13:34 +0100 Message-ID: Return-path: Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org Cc: Liviu Dudau , Sudeep Holla , Lorenzo Pieralisi List-Id: devicetree@vger.kernel.org Juno has seperate MMU-401 instances in front of the DMA-330, both HDLCD controllers, the USB host controller, the PCIe root complex, and the CoreSight ETR. Since there is still work to do to make all the relevant subsystems interact nicely with the presence of an IOMMU, add the nodes to aid develompent and testing but leave them disabled by default to avoid nasty surprises. CC: Liviu Dudau CC: Sudeep Holla CC: Lorenzo Pieralisi Signed-off-by: Robin Murphy --- arch/arm64/boot/dts/arm/juno-base.dtsi | 80 ++++++++++++++++++++++++++++++++++ 1 file changed, 80 insertions(+) diff --git a/arch/arm64/boot/dts/arm/juno-base.dtsi b/arch/arm64/boot/dts/arm/juno-base.dtsi index 334271a25f70..100810a8b929 100644 --- a/arch/arm64/boot/dts/arm/juno-base.dtsi +++ b/arch/arm64/boot/dts/arm/juno-base.dtsi @@ -29,6 +29,28 @@ clock-names = "apb_pclk"; }; + smmu_pcie: iommu@2b500000 { + compatible = "arm,mmu-401", "arm,smmu-v1"; + reg = <0x0 0x2b500000 0x0 0x10000>; + interrupts = , + ; + #iommu-cells = <1>; + #global-interrupts = <1>; + dma-coherent; + status = "disabled"; + }; + + smmu_etr: iommu@2b600000 { + compatible = "arm,mmu-401", "arm,smmu-v1"; + reg = <0x0 0x2b600000 0x0 0x10000>; + interrupts = , + ; + #iommu-cells = <1>; + #global-interrupts = <1>; + dma-coherent; + status = "disabled"; + }; + gic: interrupt-controller@2c010000 { compatible = "arm,gic-400", "arm,cortex-a15-gic"; reg = <0x0 0x2c010000 0 0x1000>, @@ -146,6 +168,7 @@ etr@20070000 { compatible = "arm,coresight-tmc", "arm,primecell"; reg = <0 0x20070000 0 0x1000>; + iommus = <&smmu_etr 0>; clocks = <&soc_smc50mhz>; clock-names = "apb_pclk"; @@ -404,6 +427,8 @@ <0 0 0 4 &gic 0 0 0 139 4>; msi-parent = <&v2m_0>; status = "disabled"; + iommu-map-mask = <0x0>; /* RC has no means to output PCI RID */ + iommu-map = <0x0 &smmu_pcie 0x0 0x1>; }; scpi { @@ -484,6 +509,48 @@ /include/ "juno-clocks.dtsi" + smmu_dma: iommu@7fb00000 { + compatible = "arm,mmu-401", "arm,smmu-v1"; + reg = <0x0 0x7fb00000 0x0 0x10000>; + interrupts = , + ; + #iommu-cells = <1>; + #global-interrupts = <1>; + dma-coherent; + status = "disabled"; + }; + + smmu_hdlcd1: iommu@7fb10000 { + compatible = "arm,mmu-401", "arm,smmu-v1"; + reg = <0x0 0x7fb10000 0x0 0x10000>; + interrupts = , + ; + #iommu-cells = <1>; + #global-interrupts = <1>; + status = "disabled"; + }; + + smmu_hdlcd0: iommu@7fb20000 { + compatible = "arm,mmu-401", "arm,smmu-v1"; + reg = <0x0 0x7fb20000 0x0 0x10000>; + interrupts = , + ; + #iommu-cells = <1>; + #global-interrupts = <1>; + status = "disabled"; + }; + + smmu_usb: iommu@7fb30000 { + compatible = "arm,mmu-401", "arm,smmu-v1"; + reg = <0x0 0x7fb30000 0x0 0x10000>; + interrupts = , + ; + #iommu-cells = <1>; + #global-interrupts = <1>; + dma-coherent; + status = "disabled"; + }; + dma@7ff00000 { compatible = "arm,pl330", "arm,primecell"; reg = <0x0 0x7ff00000 0 0x1000>; @@ -499,6 +566,15 @@ , , ; + iommus = <&smmu_dma 0>, + <&smmu_dma 1>, + <&smmu_dma 2>, + <&smmu_dma 3>, + <&smmu_dma 4>, + <&smmu_dma 5>, + <&smmu_dma 6>, + <&smmu_dma 7>, + <&smmu_dma 8>; clocks = <&soc_faxiclk>; clock-names = "apb_pclk"; }; @@ -507,6 +583,7 @@ compatible = "arm,hdlcd"; reg = <0 0x7ff50000 0 0x1000>; interrupts = ; + iommus = <&smmu_hdlcd1 0>; clocks = <&scpi_clk 3>; clock-names = "pxlclk"; @@ -521,6 +598,7 @@ compatible = "arm,hdlcd"; reg = <0 0x7ff60000 0 0x1000>; interrupts = ; + iommus = <&smmu_hdlcd0 0>; clocks = <&scpi_clk 3>; clock-names = "pxlclk"; @@ -574,6 +652,7 @@ compatible = "generic-ohci"; reg = <0x0 0x7ffb0000 0x0 0x10000>; interrupts = ; + iommus = <&smmu_usb 0>; clocks = <&soc_usb48mhz>; }; @@ -581,6 +660,7 @@ compatible = "generic-ehci"; reg = <0x0 0x7ffc0000 0x0 0x10000>; interrupts = ; + iommus = <&smmu_usb 0>; clocks = <&soc_usb48mhz>; }; -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html