From: Yong Wu <yong.wu@mediatek.com>
To: Fabien Parent <fparent@baylibre.com>
Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
iommu@lists.linux-foundation.org, robh+dt@kernel.org,
linux-mediatek@lists.infradead.org, miles.chen@mediatek.com,
matthias.bgg@gmail.com, linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v4 3/3] iommu/mediatek: add support for MT8167
Date: Mon, 14 Sep 2020 16:03:21 +0800 [thread overview]
Message-ID: <1600070601.27773.14.camel@mhfsdcap03> (raw)
In-Reply-To: <20200907101649.1573134-3-fparent@baylibre.com>
On Mon, 2020-09-07 at 12:16 +0200, Fabien Parent wrote:
> Add support for the IOMMU on MT8167
>
> Signed-off-by: Fabien Parent <fparent@baylibre.com>
Reviewed-by: Yong Wu <yong.wu@mediatek.com>
> ---
>
> V4;
> * Removed HAS_4GB_MODE flag since this SoC does not seem to support it
> V3:
> * use LEGACY_IVRP_PADDR flag instead of using a platform data member
> V2:
> * removed if based on m4u_plat, and using instead the new
> has_legacy_ivrp_paddr member that was introduced in patch 2.
>
> ---
> drivers/iommu/mtk_iommu.c | 8 ++++++++
> drivers/iommu/mtk_iommu.h | 1 +
> 2 files changed, 9 insertions(+)
>
> diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
> index b1f85a7e9346..4ff071eb5279 100644
> --- a/drivers/iommu/mtk_iommu.c
> +++ b/drivers/iommu/mtk_iommu.c
> @@ -817,6 +817,13 @@ static const struct mtk_iommu_plat_data mt6779_data = {
> .larbid_remap = {{0}, {1}, {2}, {3}, {5}, {7, 8}, {10}, {9}},
> };
>
> +static const struct mtk_iommu_plat_data mt8167_data = {
> + .m4u_plat = M4U_MT8167,
> + .flags = RESET_AXI | HAS_LEGACY_IVRP_PADDR,
> + .inv_sel_reg = REG_MMU_INV_SEL_GEN1,
> + .larbid_remap = {{0}, {1}, {2}}, /* Linear mapping. */
> +};
> +
> static const struct mtk_iommu_plat_data mt8173_data = {
> .m4u_plat = M4U_MT8173,
> .flags = HAS_4GB_MODE | HAS_BCLK | RESET_AXI |
> @@ -835,6 +842,7 @@ 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,mt6779-m4u", .data = &mt6779_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 122925dbe547..df32b3e3408b 100644
> --- a/drivers/iommu/mtk_iommu.h
> +++ b/drivers/iommu/mtk_iommu.h
> @@ -39,6 +39,7 @@ enum mtk_iommu_plat {
> M4U_MT2701,
> M4U_MT2712,
> M4U_MT6779,
> + M4U_MT8167,
> M4U_MT8173,
> M4U_MT8183,
> };
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next prev parent reply other threads:[~2020-09-14 8:05 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-07 10:16 [PATCH v4 1/3] dt-bindings: iommu: Add binding for MediaTek MT8167 IOMMU Fabien Parent
2020-09-07 10:16 ` [PATCH v4 2/3] iommu/mediatek: add flag for legacy ivrp paddr Fabien Parent
2020-09-14 9:19 ` Matthias Brugger
2020-09-07 10:16 ` [PATCH v4 3/3] iommu/mediatek: add support for MT8167 Fabien Parent
2020-09-14 8:03 ` Yong Wu [this message]
2020-09-18 8:29 ` [PATCH v4 1/3] dt-bindings: iommu: Add binding for MediaTek MT8167 IOMMU Joerg Roedel
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