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Subject[PATCH 07/24] iommu/mediatek: Add flag NON_STD_AXI
Date
This patch add a new flag NON_STD_AXI, All the previous SoC support
this flag. this is a preparing patch for adding infra iommu and apu
iommu which don't support this flag.

Signed-off-by: Yong Wu <yong.wu@mediatek.com>
---
drivers/iommu/mtk_iommu.c | 16 ++++++++++------
1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
index a026e2ee4007..7fe9ebd879fe 100644
--- a/drivers/iommu/mtk_iommu.c
+++ b/drivers/iommu/mtk_iommu.c
@@ -124,6 +124,7 @@
#define IOVA_34_EN BIT(8)
#define SHARE_PGTABLE BIT(9) /* 2 HW share pgtable */
#define DCM_DISABLE BIT(10)
+#define NOT_STD_AXI_MODE BIT(11)

#define MTK_IOMMU_HAS_FLAG(pdata, _x) \
((((pdata)->flags) & (_x)) == (_x))
@@ -758,7 +759,8 @@ 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, NOT_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;
}
@@ -1021,7 +1023,8 @@ static const struct dev_pm_ops mtk_iommu_pm_ops = {

static const struct mtk_iommu_plat_data mt2712_data = {
.m4u_plat = M4U_MT2712,
- .flags = HAS_4GB_MODE | HAS_BCLK | HAS_VLD_PA_RNG | SHARE_PGTABLE,
+ .flags = HAS_4GB_MODE | HAS_BCLK | HAS_VLD_PA_RNG | SHARE_PGTABLE |
+ NOT_STD_AXI_MODE,
.hw_list = &m4ulist,
.inv_sel_reg = REG_MMU_INV_SEL_GEN1,
.iova_region = single_domain,
@@ -1031,7 +1034,8 @@ static const struct mtk_iommu_plat_data mt2712_data = {

static const struct mtk_iommu_plat_data mt6779_data = {
.m4u_plat = M4U_MT6779,
- .flags = HAS_SUB_COMM | OUT_ORDER_WR_EN | WR_THROT_EN,
+ .flags = HAS_SUB_COMM | OUT_ORDER_WR_EN | WR_THROT_EN |
+ NOT_STD_AXI_MODE,
.inv_sel_reg = REG_MMU_INV_SEL_GEN2,
.iova_region = single_domain,
.iova_region_nr = ARRAY_SIZE(single_domain),
@@ -1040,7 +1044,7 @@ static const struct mtk_iommu_plat_data mt6779_data = {

static const struct mtk_iommu_plat_data mt8167_data = {
.m4u_plat = M4U_MT8167,
- .flags = RESET_AXI | HAS_LEGACY_IVRP_PADDR,
+ .flags = RESET_AXI | HAS_LEGACY_IVRP_PADDR | NOT_STD_AXI_MODE,
.inv_sel_reg = REG_MMU_INV_SEL_GEN1,
.iova_region = single_domain,
.iova_region_nr = ARRAY_SIZE(single_domain),
@@ -1050,7 +1054,7 @@ static const struct mtk_iommu_plat_data mt8167_data = {
static const struct mtk_iommu_plat_data mt8173_data = {
.m4u_plat = M4U_MT8173,
.flags = HAS_4GB_MODE | HAS_BCLK | RESET_AXI |
- HAS_LEGACY_IVRP_PADDR,
+ HAS_LEGACY_IVRP_PADDR | NOT_STD_AXI_MODE,
.inv_sel_reg = REG_MMU_INV_SEL_GEN1,
.iova_region = single_domain,
.iova_region_nr = ARRAY_SIZE(single_domain),
@@ -1069,7 +1073,7 @@ static const struct mtk_iommu_plat_data mt8183_data = {
static const struct mtk_iommu_plat_data mt8192_data = {
.m4u_plat = M4U_MT8192,
.flags = HAS_BCLK | HAS_SUB_COMM | OUT_ORDER_WR_EN |
- WR_THROT_EN | IOVA_34_EN,
+ WR_THROT_EN | IOVA_34_EN | NOT_STD_AXI_MODE,
.inv_sel_reg = REG_MMU_INV_SEL_GEN2,
.iova_region = mt8192_multi_dom,
.iova_region_nr = ARRAY_SIZE(mt8192_multi_dom),
--
2.18.0
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