linux-kernel - [PATCH 3/3] iommu: mtk_iommu: add support for MT8365 SoC

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Date:   Mon, 30 May 2022 20:03:28 +0200
From:   Fabien Parent <fparent@...libre.com>
To:     Yong Wu <yong.wu@...iatek.com>, Joerg Roedel <joro@...tes.org>,
        Will Deacon <will@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>
Cc:     Fabien Parent <fparent@...libre.com>,
        iommu@...ts.linux-foundation.org,
        linux-mediatek@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH 3/3] iommu: mtk_iommu: add support for MT8365 SoC

Add IOMMU support for MT8365 SoC.

Signed-off-by: Fabien Parent <fparent@...libre.com>
---
 drivers/iommu/mtk_iommu.c | 11 +++++++++++
 drivers/iommu/mtk_iommu.h |  1 +
 2 files changed, 12 insertions(+)

diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
index b692347d8d56..039b8f9d5022 100644
--- a/drivers/iommu/mtk_iommu.c
+++ b/drivers/iommu/mtk_iommu.c
@@ -1093,6 +1093,16 @@ static const struct mtk_iommu_plat_data mt8192_data = {
 	.port_width     = 5,
 };
 
+static const struct mtk_iommu_plat_data mt8365_data = {
+	.m4u_plat     = M4U_MT8365,
+	.flags	      = RESET_AXI,
+	.inv_sel_reg  = REG_MMU_INV_SEL_GEN1,
+	.iova_region  = single_domain,
+	.iova_region_nr = ARRAY_SIZE(single_domain),
+	.larbid_remap = {{0}, {1}, {2}, {3}, {4}, {5}}, /* Linear mapping. */
+	.port_width   = 6,
+};
+
 static const struct of_device_id mtk_iommu_of_ids[] = {
 	{ .compatible = "mediatek,mt2712-m4u", .data = &mt2712_data},
 	{ .compatible = "mediatek,mt6779-m4u", .data = &mt6779_data},
@@ -1100,6 +1110,7 @@ static const struct of_device_id mtk_iommu_of_ids[] = {
 	{ .compatible = "mediatek,mt8173-m4u", .data = &mt8173_data},
 	{ .compatible = "mediatek,mt8183-m4u", .data = &mt8183_data},
 	{ .compatible = "mediatek,mt8192-m4u", .data = &mt8192_data},
+	{ .compatible = "mediatek,mt8365-m4u", .data = &mt8365_data},
 	{}
 };
 
diff --git a/drivers/iommu/mtk_iommu.h b/drivers/iommu/mtk_iommu.h
index 84cecaf6d61c..cb174fa6f2ab 100644
--- a/drivers/iommu/mtk_iommu.h
+++ b/drivers/iommu/mtk_iommu.h
@@ -46,6 +46,7 @@ enum mtk_iommu_plat {
 	M4U_MT8173,
 	M4U_MT8183,
 	M4U_MT8192,
+	M4U_MT8365,
 };
 
 struct mtk_iommu_iova_region;
-- 
2.36.1