iommu/mediatek: add support for MT8365 SoC

Add IOMMU support for MT8365 SoC.

Signed-off-by: Fabien Parent <fparent@baylibre.com>
Reviewed-by: Amjad Ouled-Ameur <aouledameur@baylibre.com>
Tested-by: Amjad Ouled-Ameur <aouledameur@baylibre.com>
Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Yong Wu <yong.wu@mediatek.com>
Signed-off-by: Alexandre Mergnat <amergnat@baylibre.com>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Link: https://lore.kernel.org/r/20221001-iommu-support-v6-3-be4fe8da254b@baylibre.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>

diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
index 885ba52..c80f33d 100644 (file)
--- 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 | 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},
        {}
 };