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SubjectRe: [PATCH v2 2/2] arm64: dts: qcom: glymur: Add crypto engine and BAM
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On 5/5/2026 3:40 PM, Harshal Dev wrote:
> On almost all Qualcomm platforms, including Glymur, there is a Crypto
> engine IP block to which the CPU can off-load cryptographic computations
> for achieving acceleration.
> The engine is also DMA capable due to the presence of an associated Bus
> Access Manager (BAM) module.
>
> Describe the Crypto engine and its BAM.
>
> Signed-off-by: Harshal Dev <harshal.dev@oss.qualcomm.com>
> ---
> arch/arm64/boot/dts/qcom/glymur.dtsi | 26 ++++++++++++++++++++++++++
> 1 file changed, 26 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/qcom/glymur.dtsi b/arch/arm64/boot/dts/qcom/glymur.dtsi
> index f23cf81ddb77..349da9966d52 100644
> --- a/arch/arm64/boot/dts/qcom/glymur.dtsi
> +++ b/arch/arm64/boot/dts/qcom/glymur.dtsi
> @@ -3675,6 +3675,32 @@ pcie3b_phy: phy@f10000 {
> status = "disabled";
> };
>
> + cryptobam: dma-controller@1dc4000 {
> + 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 0x80 0x0>,
> + <&apps_smmu 0x81 0x0>;
> + qcom,ee = <0>;
> + qcom,controlled-remotely;
> + num-channels = <20>;
> + qcom,num-ees = <4>;
> + };
> +
> + crypto: crypto@1dfa000 {
> + compatible = "qcom,glymur-qce", "qcom,sm8150-qce", "qcom,qce";
> + reg = <0x0 0x01dfa000 0x0 0x6000>;
> + dmas = <&cryptobam 4>, <&cryptobam 5>;
> + dma-names = "rx",
> + "tx";
> + iommus = <&apps_smmu 0x80 0x0>,
> + <&apps_smmu 0x81 0x0>;
> + interconnects = <&aggre1_noc MASTER_CRYPTO QCOM_ICC_TAG_ALWAYS
> + &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ALWAYS>;
> + interconnect-names = "memory";
> + };
> +
> tcsr_mutex: hwlock@1f40000 {
> compatible = "qcom,tcsr-mutex";
> reg = <0x0 0x01f40000 0x0 0x20000>;

Tested-by: Wenjia Zhang <wenjia.zhang@oss.qualcomm.com> # on Glymur-crd
device

root@qcom-armv8a:~# bash /usr/libexec/libkcapi/kcapi-convenience.sh
[PASSED: 64-bit - 7.0.0-next-20260415-00003-g5de0c764975a-dirty]
Convenience message digest operation
===================================================================
Number of failures: 0
root@qcom-armv8a:~#

Regards,

Wenjia


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