linux-kernel - [PATCH v5] arm64: dts: qcom: x1e80100: Add crypto engine

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Message-Id: <20251210-crypto_dt_node_x1e80100-v5-1-5ad22a869a56@oss.qualcomm.com>
Date: Wed, 10 Dec 2025 10:55:33 +0530
From: Harshal Dev <harshal.dev@....qualcomm.com>
To: Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>
Cc: linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, Val Packett <val@...kett.cool>,
        Stephan Gerhold <stephan.gerhold@...aro.org>,
        Abel Vesa <abel.vesa@....qualcomm.com>,
        Udit Tiwari <quic_utiwari@...cinc.com>,
        Neeraj Soni <quic_neersoni@...cinc.com>,
        Wenjia Zhang <wenjia.zhang@....qualcomm.com>,
        Konrad Dybcio <konrad.dybcio@....qualcomm.com>,
        Harshal Dev <harshal.dev@....qualcomm.com>
Subject: [PATCH v5] arm64: dts: qcom: x1e80100: Add crypto engine

On X Elite, there is a crypto engine IP block similar to ones found on
SM8x50 platforms.

Describe the crypto engine and its BAM.

Tested-by: Wenjia Zhang <wenjia.zhang@....qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
Signed-off-by: Harshal Dev <harshal.dev@....qualcomm.com>
---
The dt-binding schema update for the x1e80100 compatible is here
(already merged):
    
https://lore.kernel.org/all/20250213-dt-bindings-qcom-qce-x1e80100-v1-1-d17ef73a1c12@linaro.org/
---
Changes in v5:
- Sorted the nodes correctly as per their unit address.
- Collected Tested-by and Reviewed-by tags.
- Link to v4: https://lore.kernel.org/r/20251208-crypto_dt_node_x1e80100-v4-1-f5d03bb2c501@oss.qualcomm.com

Changes in v4:
- Updated iommu property to use 0x0 instead of 0x0000 in last cell.
- Updated dma-names property by listing one dma channel name per line.
- Use QCOM_ICC_TAG_ALWAYS symbol instead of 0 in the interconnects property.
- Link to v3: https://lore.kernel.org/r/20251127-crypto_dt_node_x1e80100-v3-1-29722003fe83@oss.qualcomm.com
---
Changes in v3:
- Fixed num-channels and qcom,num-ees properties by updating them to 20 and 4 respectively.
- Link to v2: https://lore.kernel.org/all/20250221-x1e80100-crypto-v2-1-413ecf68dcd7@linaro.org
Changes in v2:
- Added EE and channels numbers in BAM node, like Stephan suggested.
- Added v1.7.4 compatible as well.
- Link to v1: https://lore.kernel.org/r/20250213-x1e80100-crypto-v1-1-f93afdd4025a@linaro.org
---
 arch/arm64/boot/dts/qcom/x1e80100.dtsi | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/x1e80100.dtsi b/arch/arm64/boot/dts/qcom/x1e80100.dtsi
index 51576d9c935d..7066130f242d 100644
--- a/arch/arm64/boot/dts/qcom/x1e80100.dtsi
+++ b/arch/arm64/boot/dts/qcom/x1e80100.dtsi
@@ -3760,6 +3760,32 @@ pcie4_phy: phy@...e000 {
 			status = "disabled";
 		};
 
+		cryptobam: dma-controller@...4000 {
+			compatible = "qcom,bam-v1.7.4", "qcom,bam-v1.7.0";
+			reg = <0x0 0x01dc4000 0x0 0x28000>;
+			interrupts = <GIC_SPI 272 IRQ_TYPE_LEVEL_HIGH>;
+			#dma-cells = <1>;
+			iommus = <&apps_smmu 0x480 0x0>,
+				 <&apps_smmu 0x481 0x0>;
+			qcom,ee = <0>;
+			qcom,controlled-remotely;
+			num-channels = <20>;
+			qcom,num-ees = <4>;
+		};
+
+		crypto: crypto@...a000 {
+			compatible = "qcom,x1e80100-qce", "qcom,sm8150-qce", "qcom,qce";
+			reg = <0x0 0x01dfa000 0x0 0x6000>;
+			dmas = <&cryptobam 4>, <&cryptobam 5>;
+			dma-names = "rx",
+				    "tx";
+			iommus = <&apps_smmu 0x480 0x0>,
+				 <&apps_smmu 0x481 0x0>;
+			interconnects = <&aggre2_noc MASTER_CRYPTO QCOM_ICC_TAG_ALWAYS
+					 &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ALWAYS>;
+			interconnect-names = "memory";
+		};
+
 		tcsr_mutex: hwlock@...0000 {
 			compatible = "qcom,tcsr-mutex";
 			reg = <0 0x01f40000 0 0x20000>;

---
base-commit: 765e56e41a5af2d456ddda6cbd617b9d3295ab4e
change-id: 20251127-crypto_dt_node_x1e80100-bcb1a2837b56

Best regards,
-- 
Harshal Dev <harshal.dev@....qualcomm.com>