No functional change. Only move the code position to make the code more
readable.
1. Put the register smi-common above smi-larb. Prepare to add some others
register setting.
2. Put mtk_smi_larb_unbind around larb_bind.
3. Sort the SoC data alphabetically. and put them in one line as the
current kernel allow it.
Signed-off-by: Yong Wu <yong...@mediatek.com>
Reviewed-by: Ikjoon Jang <i...@chromium.org>
---
drivers/memory/mtk-smi.c | 188 ++++++++++++++++-----------------------
1 file changed, 75 insertions(+), 113 deletions(-)
diff --git a/drivers/memory/mtk-smi.c b/drivers/memory/mtk-smi.c
index 02a584dfb9b1..33b6c5efe102 100644
--- a/drivers/memory/mtk-smi.c
+++ b/drivers/memory/mtk-smi.c
@@ -17,13 +17,16 @@
#include <dt-bindings/memory/mt2701-larb-port.h>
#include <dt-bindings/memory/mtk-memory-port.h>
-/* mt8173 */
-#define SMI_LARB_MMU_EN 0xf00
+/* SMI COMMON */
+#define SMI_BUS_SEL 0x220
+#define SMI_BUS_LARB_SHIFT(larbid) ((larbid) << 1)
+/* All are MMU0 defaultly. Only specialize mmu1 here. */
+#define F_MMU1_LARB(larbid) (0x1 << SMI_BUS_LARB_SHIFT(larbid))
-/* mt8167 */
-#define MT8167_SMI_LARB_MMU_EN 0xfc0
+/* SMI LARB */
-/* mt2701 */
+/* Below are about mmu enable registers, they are different in SoCs */
+/* gen1: mt2701 */
#define REG_SMI_SECUR_CON_BASE 0x5c0
/* every register control 8 port, register offset 0x4 */
@@ -41,20 +44,21 @@
/* mt2701 domain should be set to 3 */
#define SMI_SECUR_CON_VAL_DOMAIN(id) (0x3 << ((((id) & 0x7) << 2) + 1))
-/* mt2712 */
-#define SMI_LARB_NONSEC_CON(id) (0x380 + ((id) * 4))
-#define F_MMU_EN BIT(0)
-#define BANK_SEL(id) ({ \
+/* gen2: */
+/* mt8167 */
+#define MT8167_SMI_LARB_MMU_EN 0xfc0
+
+/* mt8173 */
+#define MT8173_SMI_LARB_MMU_EN 0xf00
+
+/* general */
+#define SMI_LARB_NONSEC_CON(id) (0x380 + ((id) * 4))
+#define F_MMU_EN BIT(0)
+#define BANK_SEL(id) ({ \
u32 _id = (id) & 0x3; \
(_id << 8 | _id << 10 | _id << 12 | _id << 14); \
})
-/* SMI COMMON */
-#define SMI_BUS_SEL 0x220
-#define SMI_BUS_LARB_SHIFT(larbid) ((larbid) << 1)
-/* All are MMU0 defaultly. Only specialize mmu1 here. */
-#define F_MMU1_LARB(larbid) (0x1 << SMI_BUS_LARB_SHIFT(larbid))
-
enum mtk_smi_type {
MTK_SMI_GEN1,
MTK_SMI_GEN2
@@ -140,36 +144,16 @@ mtk_smi_larb_bind(struct device *dev, struct device
*master, void *data)
return -ENODEV;
}
-static void mtk_smi_larb_config_port_gen2_general(struct device *dev)
-{
- struct mtk_smi_larb *larb = dev_get_drvdata(dev);
- u32 reg;
- int i;
-
- if (BIT(larb->larbid) & larb->larb_gen->larb_direct_to_common_mask)
- return;
-
- for_each_set_bit(i, (unsigned long *)larb->mmu, 32) {
- reg = readl_relaxed(larb->base + SMI_LARB_NONSEC_CON(i));
- reg |= F_MMU_EN;
- reg |= BANK_SEL(larb->bank[i]);
- writel(reg, larb->base + SMI_LARB_NONSEC_CON(i));
- }
-}
-
-static void mtk_smi_larb_config_port_mt8173(struct device *dev)
+static void
+mtk_smi_larb_unbind(struct device *dev, struct device *master, void *data)
{
- struct mtk_smi_larb *larb = dev_get_drvdata(dev);
-
- writel(*larb->mmu, larb->base + SMI_LARB_MMU_EN);
+ /* Do nothing as the iommu is always enabled. */
}
-static void mtk_smi_larb_config_port_mt8167(struct device *dev)
-{
- struct mtk_smi_larb *larb = dev_get_drvdata(dev);
-
- writel(*larb->mmu, larb->base + MT8167_SMI_LARB_MMU_EN);
-}
+static const struct component_ops mtk_smi_larb_component_ops = {
+ .bind = mtk_smi_larb_bind,
+ .unbind = mtk_smi_larb_unbind,
+};
static void mtk_smi_larb_config_port_gen1(struct device *dev)
{
@@ -202,26 +186,36 @@ static void mtk_smi_larb_config_port_gen1(struct device
*dev)
}
}
-static void
-mtk_smi_larb_unbind(struct device *dev, struct device *master, void *data)
+static void mtk_smi_larb_config_port_mt8167(struct device *dev)
{
- /* Do nothing as the iommu is always enabled. */
+ struct mtk_smi_larb *larb = dev_get_drvdata(dev);
+
+ writel(*larb->mmu, larb->base + MT8167_SMI_LARB_MMU_EN);
}
-static const struct component_ops mtk_smi_larb_component_ops = {
- .bind = mtk_smi_larb_bind,
- .unbind = mtk_smi_larb_unbind,
-};
+static void mtk_smi_larb_config_port_mt8173(struct device *dev)
+{
+ struct mtk_smi_larb *larb = dev_get_drvdata(dev);
-static const struct mtk_smi_larb_gen mtk_smi_larb_mt8173 = {
- /* mt8173 do not need the port in larb */
- .config_port = mtk_smi_larb_config_port_mt8173,
-};
+ writel(*larb->mmu, larb->base + MT8173_SMI_LARB_MMU_EN);
+}
-static const struct mtk_smi_larb_gen mtk_smi_larb_mt8167 = {
- /* mt8167 do not need the port in larb */
- .config_port = mtk_smi_larb_config_port_mt8167,
-};
+static void mtk_smi_larb_config_port_gen2_general(struct device *dev)
+{
+ struct mtk_smi_larb *larb = dev_get_drvdata(dev);
+ u32 reg;
+ int i;
+
+ if (BIT(larb->larbid) & larb->larb_gen->larb_direct_to_common_mask)
+ return;
+
+ for_each_set_bit(i, (unsigned long *)larb->mmu, 32) {
+ reg = readl_relaxed(larb->base + SMI_LARB_NONSEC_CON(i));
+ reg |= F_MMU_EN;
+ reg |= BANK_SEL(larb->bank[i]);
+ writel(reg, larb->base + SMI_LARB_NONSEC_CON(i));
+ }
+}
static const struct mtk_smi_larb_gen mtk_smi_larb_mt2701 = {
.port_in_larb = {
@@ -243,6 +237,16 @@ static const struct mtk_smi_larb_gen mtk_smi_larb_mt6779 =
{
/* DUMMY | IPU0 | IPU1 | CCU | MDLA */
};
+static const struct mtk_smi_larb_gen mtk_smi_larb_mt8167 = {
+ /* mt8167 do not need the port in larb */
+ .config_port = mtk_smi_larb_config_port_mt8167,
+};
+
+static const struct mtk_smi_larb_gen mtk_smi_larb_mt8173 = {
+ /* mt8173 do not need the port in larb */
+ .config_port = mtk_smi_larb_config_port_mt8173,
+};
+
static const struct mtk_smi_larb_gen mtk_smi_larb_mt8183 = {
.config_port = mtk_smi_larb_config_port_gen2_general,
.larb_direct_to_common_mask = BIT(2) | BIT(3) | BIT(7),
@@ -254,34 +258,13 @@ static const struct mtk_smi_larb_gen mtk_smi_larb_mt8192
= {
};
static const struct of_device_id mtk_smi_larb_of_ids[] = {
- {
- .compatible = "mediatek,mt8167-smi-larb",
- .data = &mtk_smi_larb_mt8167
- },
- {
- .compatible = "mediatek,mt8173-smi-larb",
- .data = &mtk_smi_larb_mt8173
- },
- {
- .compatible = "mediatek,mt2701-smi-larb",
- .data = &mtk_smi_larb_mt2701
- },
- {
- .compatible = "mediatek,mt2712-smi-larb",
- .data = &mtk_smi_larb_mt2712
- },
- {
- .compatible = "mediatek,mt6779-smi-larb",
- .data = &mtk_smi_larb_mt6779
- },
- {
- .compatible = "mediatek,mt8183-smi-larb",
- .data = &mtk_smi_larb_mt8183
- },
- {
- .compatible = "mediatek,mt8192-smi-larb",
- .data = &mtk_smi_larb_mt8192
- },
+ {.compatible = "mediatek,mt2701-smi-larb", .data =
&mtk_smi_larb_mt2701},
+ {.compatible = "mediatek,mt2712-smi-larb", .data =
&mtk_smi_larb_mt2712},
+ {.compatible = "mediatek,mt6779-smi-larb", .data =
&mtk_smi_larb_mt6779},
+ {.compatible = "mediatek,mt8167-smi-larb", .data =
&mtk_smi_larb_mt8167},
+ {.compatible = "mediatek,mt8173-smi-larb", .data =
&mtk_smi_larb_mt8173},
+ {.compatible = "mediatek,mt8183-smi-larb", .data =
&mtk_smi_larb_mt8183},
+ {.compatible = "mediatek,mt8192-smi-larb", .data =
&mtk_smi_larb_mt8192},
{}
};
@@ -438,34 +421,13 @@ static const struct mtk_smi_common_plat
mtk_smi_common_mt8192 = {
};
static const struct of_device_id mtk_smi_common_of_ids[] = {
- {
- .compatible = "mediatek,mt8173-smi-common",
- .data = &mtk_smi_common_gen2,
- },
- {
- .compatible = "mediatek,mt8167-smi-common",
- .data = &mtk_smi_common_gen2,
- },
- {
- .compatible = "mediatek,mt2701-smi-common",
- .data = &mtk_smi_common_gen1,
- },
- {
- .compatible = "mediatek,mt2712-smi-common",
- .data = &mtk_smi_common_gen2,
- },
- {
- .compatible = "mediatek,mt6779-smi-common",
- .data = &mtk_smi_common_mt6779,
- },
- {
- .compatible = "mediatek,mt8183-smi-common",
- .data = &mtk_smi_common_mt8183,
- },
- {
- .compatible = "mediatek,mt8192-smi-common",
- .data = &mtk_smi_common_mt8192,
- },
+ {.compatible = "mediatek,mt2701-smi-common", .data =
&mtk_smi_common_gen1},
+ {.compatible = "mediatek,mt2712-smi-common", .data =
&mtk_smi_common_gen2},
+ {.compatible = "mediatek,mt6779-smi-common", .data =
&mtk_smi_common_mt6779},
+ {.compatible = "mediatek,mt8167-smi-common", .data =
&mtk_smi_common_gen2},
+ {.compatible = "mediatek,mt8173-smi-common", .data =
&mtk_smi_common_gen2},
+ {.compatible = "mediatek,mt8183-smi-common", .data =
&mtk_smi_common_mt8183},
+ {.compatible = "mediatek,mt8192-smi-common", .data =
&mtk_smi_common_mt8192},
{}
};
--
2.18.0
_______________________________________________
iommu mailing list
iommu@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/iommu
