diff mbox series

[V3,8/8] arm64: tegra: Add external memory controller node for Tegra210

Message ID 20190510084719.18902-9-josephl@nvidia.com (mailing list archive)
State Superseded, archived
Headers show
Series Add EMC scaling support for Tegra210 | expand

Commit Message

Joseph Lo May 10, 2019, 8:47 a.m. UTC 
Add external memory controller (EMC) node for Tegra210

Signed-off-by: Joseph Lo <josephl@nvidia.com>
---
 arch/arm64/boot/dts/nvidia/tegra210.dtsi | 33 ++++++++++++++++++++++++
 1 file changed, 33 insertions(+)
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Patch

diff --git a/arch/arm64/boot/dts/nvidia/tegra210.dtsi b/arch/arm64/boot/dts/nvidia/tegra210.dtsi
index bc71ef8f9a09..b9ccfee39ed2 100644
--- a/arch/arm64/boot/dts/nvidia/tegra210.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra210.dtsi
@@ -872,6 +872,27 @@ 
 		#iommu-cells = <1>;
 	};
 
+	external-memory-controller@7001b000 {
+		compatible = "nvidia,tegra210-emc";
+		reg = <0x0 0x7001b000 0x0 0x1000>,
+		      <0x0 0x7001e000 0x0 0x1000>,
+		      <0x0 0x7001f000 0x0 0x1000>;
+		clocks = <&tegra_car TEGRA210_CLK_EMC>,
+			 <&tegra_car TEGRA210_CLK_PLL_M>,
+			 <&tegra_car TEGRA210_CLK_PLL_C>,
+			 <&tegra_car TEGRA210_CLK_PLL_P>,
+			 <&tegra_car TEGRA210_CLK_CLK_M>,
+			 <&tegra_car TEGRA210_CLK_PLL_M_UD>,
+			 <&tegra_car TEGRA210_CLK_PLL_MB_UD>,
+			 <&tegra_car TEGRA210_CLK_PLL_MB>,
+			 <&tegra_car TEGRA210_CLK_PLL_P_UD>;
+		clock-names = "emc", "pll_m", "pll_c", "pll_p", "clk_m",
+			      "pll_m_ud", "pll_mb_ud", "pll_mb", "pll_p_ud";
+		interrupts = <GIC_SPI 78 IRQ_TYPE_LEVEL_HIGH>;
+		memory-region = <&emc_table>;
+		nvidia,memory-controller = <&mc>;
+	};
+
 	sata@70020000 {
 		compatible = "nvidia,tegra210-ahci";
 		reg = <0x0 0x70027000 0x0 0x2000>, /* AHCI */
@@ -1431,6 +1452,18 @@ 
 		};
 	};
 
+	reserved-memory {
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		emc_table: emc-table@8be00000 {
+			compatible = "nvidia,tegra210-emc-table";
+			reg = <0x0 0x8be00000 0x0 0x10000>;
+			status = "disabled";
+		};
+	};
+
 	timer {
 		compatible = "arm,armv8-timer";
 		interrupts = <GIC_PPI 13