On Tue, Sep 24, 2013 at 04:07:01PM +0100, Andreas Herrmann wrote: > Signed-off-by: Andreas Herrmann <andreas.herrm...@calxeda.com> > --- > drivers/iommu/arm-smmu.c | 9 +++++++++ > 1 file changed, 9 insertions(+) > > diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c > index 251564e..a499146 100644 > --- a/drivers/iommu/arm-smmu.c > +++ b/drivers/iommu/arm-smmu.c > @@ -645,6 +645,10 @@ static void arm_smmu_init_context_bank(struct > arm_smmu_domain *smmu_domain) > stage1 = root_cfg->cbar != CBAR_TYPE_S2_TRANS; > cb_base = ARM_SMMU_CB_BASE(smmu) + ARM_SMMU_CB(smmu, root_cfg->cbndx); > > + /* clear fsr */ > + writel_relaxed(0xffffffff, cb_base + ARM_SMMU_CB_FSR); > + writel_relaxed(0, cb_base + ARM_SMMU_CB_FSYNR0); > + > /* CBAR */ > reg = root_cfg->cbar; > if (smmu->version == 1) > @@ -1570,6 +1574,11 @@ static void arm_smmu_device_reset(struct > arm_smmu_device *smmu) > int i = 0; > u32 scr0 = readl_relaxed(gr0_base + ARM_SMMU_GR0_sCR0); > > + /* clear global FSRs */ > + writel(0xffffffff, gr0_base + ARM_SMMU_GR0_sGFSR); > + writel(0, gr0_base + ARM_SMMU_GR0_sGFSYNR0); > + writel(0, gr0_base + ARM_SMMU_GR0_sGFSYNR1);
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