On Wed, Jun 21, 2023 at 04:36:27PM +0200, Krzysztof Kozlowski wrote:
> SM8350 HDK and MTP boards were silently dying and rebooting during BAM
> DMA probe:
>
> [ 1.574304] vreg_bob: Setting 3008000-3960000uV
> [ 1.576918] bam-dFormat: Log Type - Time(microsec) - Message -
> Optional Info
> Log Type: B - Since Boot(Power On Reset), D - Delta, S - Statistic
> S - QC_IMAGE_VERSION_STRING=BOOT.MXF.1.0-00637.1-LAHAINA-1
> S - IMAGE_VARIANT_STRING=SocLahainaLAA
> S - OEM_IMAGE_VERSION_STRING=crm-ubuntu77
> S - Boot Interface: UFS
>
> It seems that BAM DMA is locally controller (not by firmware) and
> requires proper initialization by the driver prior to use, at least on
> HDK8350 and MTP8350, but probably on all boards.
>
> Fixes: f1040a7fe8f0 ("arm64: dts: qcom: sm8350: Add Crypto Engine support")
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
Acked-by: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx>
- Mani
>
> ---
>
> Cc: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx>
> ---
> arch/arm64/boot/dts/qcom/sm8350.dtsi | 1 -
> 1 file changed, 1 deletion(-)
>
> diff --git a/arch/arm64/boot/dts/qcom/sm8350.dtsi b/arch/arm64/boot/dts/qcom/sm8350.dtsi
> index 88ef478cb5cc..b382ce66387e 100644
> --- a/arch/arm64/boot/dts/qcom/sm8350.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sm8350.dtsi
> @@ -1741,7 +1741,6 @@ cryptobam: dma-controller@1dc4000 {
> interrupts = <GIC_SPI 272 IRQ_TYPE_LEVEL_HIGH>;
> #dma-cells = <1>;
> qcom,ee = <0>;
> - qcom,controlled-remotely;
> iommus = <&apps_smmu 0x594 0x0011>,
> <&apps_smmu 0x596 0x0011>;
> };
> --
> 2.34.1
>
--
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