[PATCH v3 3/3] iommu/mediatek: add support for MT8365 SoC

From: Alexandre Mergnat
Date: Mon Oct 10 2022 - 08:54:48 EST


From: Fabien Parent <fparent@xxxxxxxxxxxx>

Add IOMMU support for MT8365 SoC.

Signed-off-by: Fabien Parent <fparent@xxxxxxxxxxxx>
Reviewed-by: Amjad Ouled-Ameur <aouledameur@xxxxxxxxxxxx>
Tested-by: Amjad Ouled-Ameur <aouledameur@xxxxxxxxxxxx>
Signed-off-by: Markus Schneider-Pargmann <msp@xxxxxxxxxxxx>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxx>
Signed-off-by: Alexandre Mergnat <amergnat@xxxxxxxxxxxx>
---
drivers/iommu/mtk_iommu.c | 13 +++++++++++++
1 file changed, 13 insertions(+)

diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
index 35e9731c3441..50ee1f833c2b 100644
--- a/drivers/iommu/mtk_iommu.c
+++ b/drivers/iommu/mtk_iommu.c
@@ -170,6 +170,7 @@ enum mtk_iommu_plat {
M4U_MT8186,
M4U_MT8192,
M4U_MT8195,
+ M4U_MT8365,
};

struct mtk_iommu_iova_region {
@@ -1528,6 +1529,17 @@ static const struct mtk_iommu_plat_data mt8195_data_vpp = {
{4, MTK_INVALID_LARBID, MTK_INVALID_LARBID, MTK_INVALID_LARBID, 6}},
};

+static const struct mtk_iommu_plat_data mt8365_data = {
+ .m4u_plat = M4U_MT8365,
+ .flags = RESET_AXI | HAS_INT_ID_PORT_WIDTH_6,
+ .inv_sel_reg = REG_MMU_INV_SEL_GEN1,
+ .banks_num = 1,
+ .banks_enable = {true},
+ .iova_region = single_domain,
+ .iova_region_nr = ARRAY_SIZE(single_domain),
+ .larbid_remap = {{0}, {1}, {2}, {3}, {4}, {5}}, /* Linear mapping. */
+};
+
static const struct of_device_id mtk_iommu_of_ids[] = {
{ .compatible = "mediatek,mt2712-m4u", .data = &mt2712_data},
{ .compatible = "mediatek,mt6779-m4u", .data = &mt6779_data},
@@ -1540,6 +1552,7 @@ static const struct of_device_id mtk_iommu_of_ids[] = {
{ .compatible = "mediatek,mt8195-iommu-infra", .data = &mt8195_data_infra},
{ .compatible = "mediatek,mt8195-iommu-vdo", .data = &mt8195_data_vdo},
{ .compatible = "mediatek,mt8195-iommu-vpp", .data = &mt8195_data_vpp},
+ { .compatible = "mediatek,mt8365-m4u", .data = &mt8365_data},
{}
};


--
b4 0.10.1