+Yong.Wu. On Fri, 2020-01-03 at 17:26 +0100, Fabien Parent wrote: > Add support for the IOMMU on MT8167 > > Signed-off-by: Fabien Parent <fpar...@baylibre.com> > --- > drivers/iommu/mtk_iommu.c | 11 ++++++++++- > drivers/iommu/mtk_iommu.h | 1 + > 2 files changed, 11 insertions(+), 1 deletion(-) > > diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c > index 6fc1f5ecf91e..5fc6178a82dc 100644 > --- a/drivers/iommu/mtk_iommu.c > +++ b/drivers/iommu/mtk_iommu.c > @@ -569,7 +569,8 @@ static int mtk_iommu_hw_init(const struct mtk_iommu_data > *data) > F_INT_PRETETCH_TRANSATION_FIFO_FAULT; > writel_relaxed(regval, data->base + REG_MMU_INT_MAIN_CONTROL); > > - if (data->plat_data->m4u_plat == M4U_MT8173) > + if (data->plat_data->m4u_plat == M4U_MT8173 || > + data->plat_data->m4u_plat == M4U_MT8167) > regval = (data->protect_base >> 1) | (data->enable_4GB << 31); > else > regval = lower_32_bits(data->protect_base) | > @@ -782,6 +783,13 @@ static const struct mtk_iommu_plat_data mt2712_data = { > .larbid_remap = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}, > }; > > +static const struct mtk_iommu_plat_data mt8167_data = { > + .m4u_plat = M4U_MT8167, > + .has_4gb_mode = true, > + .reset_axi = true, > + .larbid_remap = {0, 1, 2, 3, 4, 5}, /* Linear mapping. */ > +}; > + > static const struct mtk_iommu_plat_data mt8173_data = { > .m4u_plat = M4U_MT8173, > .has_4gb_mode = true, > @@ -798,6 +806,7 @@ static const struct mtk_iommu_plat_data mt8183_data = { > > static const struct of_device_id mtk_iommu_of_ids[] = { > { .compatible = "mediatek,mt2712-m4u", .data = &mt2712_data}, > + { .compatible = "mediatek,mt8167-m4u", .data = &mt8167_data}, > { .compatible = "mediatek,mt8173-m4u", .data = &mt8173_data}, > { .compatible = "mediatek,mt8183-m4u", .data = &mt8183_data}, > {} > diff --git a/drivers/iommu/mtk_iommu.h b/drivers/iommu/mtk_iommu.h > index ea949a324e33..cb8fd5970cd4 100644 > --- a/drivers/iommu/mtk_iommu.h > +++ b/drivers/iommu/mtk_iommu.h > @@ -30,6 +30,7 @@ struct mtk_iommu_suspend_reg { > enum mtk_iommu_plat { > M4U_MT2701, > M4U_MT2712, > + M4U_MT8167, > M4U_MT8173, > M4U_MT8183, > };
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