Re: [PATCH v5 10/10] iommu/mediatek: Add mt6779 basic support
From: Matthias Brugger <matthias.bgg@gmail.com>
Date: 2020-06-29 20:44:53
Also in:
linux-devicetree, linux-iommu, linux-mediatek, lkml
On 29/06/2020 09:13, Chao Hao wrote:
1. Start from mt6779, INVLDT_SEL move to offset=0x2c, so we add REG_MMU_INV_SEL_GEN2 definition and mt6779 uses it. 2. Add mt6779_data to support mm_iommu HW init. Cc: Yong Wu <yong.wu@mediatek.com> Cc: Matthias Brugger <matthias.bgg@gmail.com> Signed-off-by: Chao Hao <redacted>
Reviewed by: Matthias Brugger [off-list ref]
quoted hunk ↗ jump to hunk
--- 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 e46e2deee3fd..1575196d9cd5 100644 --- a/drivers/iommu/mtk_iommu.c +++ b/drivers/iommu/mtk_iommu.c@@ -37,6 +37,7 @@ #define REG_MMU_INVLD_START_A 0x024 #define REG_MMU_INVLD_END_A 0x028 +#define REG_MMU_INV_SEL_GEN2 0x02c #define REG_MMU_INV_SEL_GEN1 0x038 #define F_INVLD_EN0 BIT(0) #define F_INVLD_EN1 BIT(1)@@ -798,6 +799,15 @@ static const struct mtk_iommu_plat_data mt2712_data = { .larbid_remap = {{0}, {1}, {2}, {3}, {4}, {5}, {6}, {7}}, }; +static const struct mtk_iommu_plat_data mt6779_data = { + .m4u_plat = M4U_MT6779, + .flags = HAS_SUB_COMM | + OUT_ORDER_EN | + WR_THROT_EN, + .inv_sel_reg = REG_MMU_INV_SEL_GEN2, + .larbid_remap = {{0}, {1}, {2}, {3}, {5}, {7, 8}, {10}, {9}}, +}; + static const struct mtk_iommu_plat_data mt8173_data = { .m4u_plat = M4U_MT8173, .flags = HAS_4GB_MODE |@@ -816,6 +826,7 @@ 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,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 ce4f4e8f03aa..a080db2e8a93 100644 --- a/drivers/iommu/mtk_iommu.h +++ b/drivers/iommu/mtk_iommu.h@@ -43,6 +43,7 @@ struct mtk_iommu_suspend_reg { enum mtk_iommu_plat { M4U_MT2701, M4U_MT2712, + M4U_MT6779, M4U_MT8173, M4U_MT8183, };
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