+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,
>  };

_______________________________________________
iommu mailing list
iommu@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/iommu

Reply via email to