diff options
| author | Mitchel Humpherys <mitchelh@codeaurora.org> | 2014-12-11 17:21:28 -0800 |
|---|---|---|
| committer | David Keitel <dkeitel@codeaurora.org> | 2016-03-22 11:11:25 -0700 |
| commit | 630d965c36ca2a33273384edd6c19657e9d14b5a (patch) | |
| tree | 55cc6c5b2e89c98d4ed2ec87e3ee3c08552895c2 | |
| parent | 86d7c80b5af1f17a14b0dd91b127074f7e215b98 (diff) | |
iommu/arm-smmu: don't touch the secure STLBIALL register
Currently we do a STLBIALL when we initialize the SMMU. However, in
some configurations that register is not supposed to be touched and is
marked as "Secure only" in the spec. Rip it out.
Change-Id: I3a6e3f171f8f9fd82257270e3a7202ecbc8bd6ad
Signed-off-by: Mitchel Humpherys <mitchelh@codeaurora.org>
| -rw-r--r-- | drivers/iommu/arm-smmu.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c index ed60e950c361..6dac151ee330 100644 --- a/drivers/iommu/arm-smmu.c +++ b/drivers/iommu/arm-smmu.c @@ -175,7 +175,6 @@ #define PIDR2_ARCH_MASK 0xf /* Global TLB invalidation */ -#define ARM_SMMU_GR0_STLBIALL 0x60 #define ARM_SMMU_GR0_TLBIVMID 0x64 #define ARM_SMMU_GR0_TLBIALLNSNH 0x68 #define ARM_SMMU_GR0_TLBIALLH 0x6c @@ -2077,7 +2076,6 @@ static void arm_smmu_device_reset(struct arm_smmu_device *smmu) } /* Invalidate the TLB, just in case */ - writel_relaxed(0, gr0_base + ARM_SMMU_GR0_STLBIALL); writel_relaxed(0, gr0_base + ARM_SMMU_GR0_TLBIALLH); writel_relaxed(0, gr0_base + ARM_SMMU_GR0_TLBIALLNSNH); |