[PATCH 1/2] arm64: dts: stratix10: Add Stratix10 SMMU support

[thor . thayer]

From: Thor Thayer <thor.thayer@xxxxxxxxxxxxxxx>

Add SMMU support to the Stratix10 Device Tree which
includes adding the SMMU node and adding IOMMU stream
ids to the SMMU peripherals. Update bindings.

Signed-off-by: Thor Thayer <thor.thayer@xxxxxxxxxxxxxxx>
---
This patch is dependent on the patch series
"iommu/arm-smmu: Add runtime pm/sleep support"
(https://patchwork.ozlabs.org/cover/946160/)
---
 .../devicetree/bindings/iommu/arm,smmu.txt         | 25 ++++++++++++++++++
 arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi  | 30 ++++++++++++++++++++++
 2 files changed, 55 insertions(+)

diff --git a/Documentation/devicetree/bindings/iommu/arm,smmu.txt b/Documentation/devicetree/bindings/iommu/arm,smmu.txt
index 7c71a6ed465a..8e3fe0594e3e 100644
--- a/Documentation/devicetree/bindings/iommu/arm,smmu.txt
+++ b/Documentation/devicetree/bindings/iommu/arm,smmu.txt
@@ -18,6 +18,7 @@ conditions.
                         "arm,mmu-500"
                         "cavium,smmu-v2"
                         "qcom,<soc>-smmu-v2", "qcom,smmu-v2"
+                        "altr,smmu-v2"
 
                   depending on the particular implementation and/or the
                   version of the architecture implemented.
@@ -179,3 +180,27 @@ conditions.
 			 <&mmcc SMMU_MDP_AHB_CLK>;
 		clock-names = "bus", "iface";
 	};
+
+	/* Stratix10 arm,smmu-v2 implementation */
+	smmu5: iommu@fa000000 {
+		compatible = "altr,smmu-v2", "arm,mmu-500",
+			     "arm,smmu-v2";
+		reg = <0xfa000000 0x40000>;
+		#global-interrupts = <2>;
+		#iommu-cells = <1>;
+		clocks = <&clkmgr STRATIX10_L4_MAIN_CLK>;
+		clock-names = "masters";
+		interrupt-parent = <&intc>;
+		interrupts = <0 128 4>,	/* Global Secure Fault */
+			<0 129 4>, /* Global Non-secure Fault */
+			/* Non-secure Context Interrupts (32) */
+			<0 138 4>, <0 139 4>, <0 140 4>, <0 141 4>,
+			<0 142 4>, <0 143 4>, <0 144 4>, <0 145 4>,
+			<0 146 4>, <0 147 4>, <0 148 4>, <0 149 4>,
+			<0 150 4>, <0 151 4>, <0 152 4>, <0 153 4>,
+			<0 154 4>, <0 155 4>, <0 156 4>, <0 157 4>,
+			<0 158 4>, <0 159 4>, <0 160 4>, <0 161 4>,
+			<0 162 4>, <0 163 4>, <0 164 4>, <0 165 4>,
+			<0 166 4>, <0 167 4>, <0 168 4>, <0 169 4>;
+		stream-match-mask = <0x7ff0>;
+	};
diff --git a/arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi b/arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi
index d033da401c26..e38ca86d48f6 100644
--- a/arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi
+++ b/arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi
@@ -137,6 +137,7 @@
 			reset-names = "stmmaceth", "stmmaceth-ocp";
 			clocks = <&clkmgr STRATIX10_EMAC0_CLK>;
 			clock-names = "stmmaceth";
+			iommus = <&smmu 1>;
 			status = "disabled";
 		};
 
@@ -150,6 +151,7 @@
 			reset-names = "stmmaceth", "stmmaceth-ocp";
 			clocks = <&clkmgr STRATIX10_EMAC1_CLK>;
 			clock-names = "stmmaceth";
+			iommus = <&smmu 2>;
 			status = "disabled";
 		};
 
@@ -163,6 +165,7 @@
 			reset-names = "stmmaceth", "stmmaceth-ocp";
 			clocks = <&clkmgr STRATIX10_EMAC2_CLK>;
 			clock-names = "stmmaceth";
+			iommus = <&smmu 3>;
 			status = "disabled";
 		};
 
@@ -273,6 +276,7 @@
 			clocks = <&clkmgr STRATIX10_L4_MP_CLK>,
 				 <&clkmgr STRATIX10_SDMMC_CLK>;
 			clock-names = "biu", "ciu";
+			iommus = <&smmu 5>;
 			status = "disabled";
 		};
 
@@ -307,6 +311,30 @@
 			altr,modrst-offset = <0x20>;
 		};
 
+		smmu: iommu@fa000000 {
+			compatible = "altr,smmu-v2", "arm,mmu-500",
+				     "arm,smmu-v2";
+			reg = <0xfa000000 0x40000>;
+			#global-interrupts = <2>;
+			#iommu-cells = <1>;
+			clocks = <&clkmgr STRATIX10_L4_MAIN_CLK>;
+			clock-names = "masters";
+			interrupt-parent = <&intc>;
+			interrupts = <0 128 4>,	/* Global Secure Fault */
+				<0 129 4>, /* Global Non-secure Fault */
+				/* Non-secure Context Interrupts (32) */
+				<0 138 4>, <0 139 4>, <0 140 4>, <0 141 4>,
+				<0 142 4>, <0 143 4>, <0 144 4>, <0 145 4>,
+				<0 146 4>, <0 147 4>, <0 148 4>, <0 149 4>,
+				<0 150 4>, <0 151 4>, <0 152 4>, <0 153 4>,
+				<0 154 4>, <0 155 4>, <0 156 4>, <0 157 4>,
+				<0 158 4>, <0 159 4>, <0 160 4>, <0 161 4>,
+				<0 162 4>, <0 163 4>, <0 164 4>, <0 165 4>,
+				<0 166 4>, <0 167 4>, <0 168 4>, <0 169 4>;
+			stream-match-mask = <0x7ff0>;
+			status = "disabled";
+		};
+
 		spi0: spi@ffda4000 {
 			compatible = "snps,dw-apb-ssi";
 			#address-cells = <1>;
@@ -416,6 +444,7 @@
 			resets = <&rst USB0_RESET>, <&rst USB0_OCP_RESET>;
 			reset-names = "dwc2", "dwc2-ecc";
 			clocks = <&clkmgr STRATIX10_USB_CLK>;
+			iommus = <&smmu 6>;
 			status = "disabled";
 		};
 
@@ -428,6 +457,7 @@
 			resets = <&rst USB1_RESET>, <&rst USB1_OCP_RESET>;
 			reset-names = "dwc2", "dwc2-ecc";
 			clocks = <&clkmgr STRATIX10_USB_CLK>;
+			iommus = <&smmu 7>;
 			status = "disabled";
 		};
 
-- 
2.7.4