* [PATCH -next] arm64: dts: sdm630: Temporarily disable SMMUs by default
@ 2020-06-29 22:26 Konrad Dybcio
0 siblings, 0 replies; only message in thread
From: Konrad Dybcio @ 2020-06-29 22:26 UTC (permalink / raw
To: skrzynka
Cc: Konrad Dybcio, Andy Gross, Bjorn Andersson, Rob Herring,
linux-arm-msm, devicetree, linux-kernel
There happens to be an issue between how kernel handles
qcom-smmuv2 and how the hypervisor would like it to be
handled. That results in the platform hanging completely
after the SMMUs are probed.
Hence, disable the SMMU nodes temporarily, until the
issue is rectified.
This has been overlooked by me in the initial
porting stage, as my defconfig has SMMU disabled.
Signed-off-by: Konrad Dybcio <konradybcio@gmail.com>
---
arch/arm64/boot/dts/qcom/sdm630.dtsi | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/sdm630.dtsi b/arch/arm64/boot/dts/qcom/sdm630.dtsi
index 88efe8200c80..deb928d303c2 100644
--- a/arch/arm64/boot/dts/qcom/sdm630.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm630.dtsi
@@ -518,6 +518,8 @@ anoc2_smmu: iommu@16c0000 {
<GIC_SPI 472 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 473 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 474 IRQ_TYPE_LEVEL_HIGH>;
+
+ status = "disabled";
};
tcsr_mutex_regs: syscon@1f40000 {
@@ -749,6 +751,8 @@ kgsl_smmu: iommu@5040000 {
<GIC_SPI 117 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 349 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 350 IRQ_TYPE_LEVEL_HIGH>;
+
+ status = "disabled";
};
lpass_smmu: iommu@5100000 {
@@ -778,6 +782,8 @@ lpass_smmu: iommu@5100000 {
<GIC_SPI 225 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 310 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 404 IRQ_TYPE_LEVEL_HIGH>;
+
+ status = "disabled";
};
spmi_bus: spmi@800f000 {
@@ -1074,6 +1080,8 @@ mmss_smmu: iommu@cd00000 {
<GIC_SPI 274 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 275 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 276 IRQ_TYPE_LEVEL_HIGH>;
+
+ status = "disabled";
};
apcs_glb: mailbox@17911000 {
--
2.27.0
^ permalink raw reply related [flat|nested] only message in thread
only message in thread, other threads:[~2020-06-29 22:26 UTC | newest]
Thread overview: (only message) (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2020-06-29 22:26 [PATCH -next] arm64: dts: sdm630: Temporarily disable SMMUs by default Konrad Dybcio
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.