Commit 4d29db20 authored by Krzysztof Kozlowski's avatar Krzysztof Kozlowski Committed by Bjorn Andersson
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arm64: dts: qcom: sm8350: fix BAM DMA crash and reboot 



SM8350 HDK and MTP boards were silently dying and rebooting during BAM
DMA probe, probably during reading BAM_REVISION register:

  [    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 not yet operational, thus mark it as failed and
disable also QCE because it won't work without BAM DMA.

Fixes: f1040a7f ("arm64: dts: qcom: sm8350: Add Crypto Engine support")
Signed-off-by: default avatarKrzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230626145959.646747-1-krzysztof.kozlowski@linaro.org


Signed-off-by: default avatarBjorn Andersson <andersson@kernel.org>
parent 9ea2c3fb

arch/arm64/boot/dts/qcom/sm8350.dtsi

+4 −0
Original line number Diff line number Diff line
@@ -1744,6 +1744,8 @@ 
			qcom,controlled-remotely;

			iommus = <&apps_smmu 0x594 0x0011>,

				 <&apps_smmu 0x596 0x0011>;

			/* FIXME: Probing BAM DMA causes some abort and system hang */

			status = "fail";

		};



		crypto: crypto@1dfa000 {
@@ -1755,6 +1757,8 @@ 
				 <&apps_smmu 0x596 0x0011>;

			interconnects = <&aggre2_noc MASTER_CRYPTO 0 &mc_virt SLAVE_EBI1 0>;

			interconnect-names = "memory";

			/* FIXME: dependency BAM DMA is disabled */

			status = "disabled";

		};



		ipa: ipa@1e40000 {