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iommu/mediatek: Add a flag STD_AXI_MODE

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Add a new flag STD_AXI_MODE which is prepared for infra and apu iommu
which use the standard axi mode. All the current SoC don't use this flag.

Signed-off-by: Yong Wu <yong.wu@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Link: https://lore.kernel.org/r/20220503071427.2285-13-yong.wu@mediatek.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Yong Wu 2022-05-03 15:14:03 +08:00 committed by Joerg Roedel
parent 9a87005ed9
commit d265a4addc
1 changed files with 3 additions and 1 deletions
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4
drivers/iommu/mtk_iommu.c
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@ -122,6 +122,7 @@
#define IOVA_34_EN BIT(8)
#define SHARE_PGTABLE BIT(9) /* 2 HW share pgtable */
#define DCM_DISABLE BIT(10)
#define STD_AXI_MODE BIT(11) /* For non MM iommu */
#define MTK_IOMMU_HAS_FLAG(pdata, _x) \
((((pdata)->flags) & (_x)) == (_x))
@ -785,7 +786,8 @@ static int mtk_iommu_hw_init(const struct mtk_iommu_data *data)
regval = 0;
} else {
regval = readl_relaxed(data->base + REG_MMU_MISC_CTRL);
regval &= ~F_MMU_STANDARD_AXI_MODE_MASK;
if (!MTK_IOMMU_HAS_FLAG(data->plat_data, STD_AXI_MODE))
regval &= ~F_MMU_STANDARD_AXI_MODE_MASK;
if (MTK_IOMMU_HAS_FLAG(data->plat_data, OUT_ORDER_WR_EN))
regval &= ~F_MMU_IN_ORDER_WR_EN_MASK;
}