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Subject[PATCH 2/2] iommu/mediatek: add support for MT8167
Date
Add support for the IOMMU on MT8167

Signed-off-by: Fabien Parent <fparent@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,
};
--
2.25.0.rc0
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