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iommu/mediatek: Rename the register STANDARD_AXI_MODE(0x48) to MISC_CTRL

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For iommu offset=0x48 register, only the previous mt8173/mt8183 use the
name STANDARD_AXI_MODE, all the latest SoC extend the register more
feature by different bits, for example: axi_mode, in_order_en, coherent_en
and so on. So rename REG_MMU_MISC_CTRL may be more proper.

This patch only rename the register name, no functional change.

Signed-off-by: Chao Hao <chao.hao@mediatek.com>
Reviewed-by: Yong Wu <yong.wu@mediatek.com>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Link: https://lore.kernel.org/r/20200703044127.27438-3-chao.hao@mediatek.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Chao Hao 2020-07-03 12:41:19 +08:00 committed by Joerg Roedel
parent 349b00c9c0
commit 75eed35087
2 changed files with 11 additions and 8 deletions
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14
drivers/iommu/mtk_iommu.c
View File

@ -41,7 +41,7 @@
#define F_INVLD_EN0 BIT(0)
#define F_INVLD_EN1 BIT(1)
#define REG_MMU_STANDARD_AXI_MODE 0x048
#define REG_MMU_MISC_CTRL 0x048
#define REG_MMU_DCM_DIS 0x050
#define REG_MMU_CTRL_REG 0x110
@ -573,8 +573,10 @@ static int mtk_iommu_hw_init(const struct mtk_iommu_data *data)
}
writel_relaxed(0, data->base + REG_MMU_DCM_DIS);
if (data->plat_data->reset_axi)
writel_relaxed(0, data->base + REG_MMU_STANDARD_AXI_MODE);
if (data->plat_data->reset_axi) {
/* The register is called STANDARD_AXI_MODE in this case */
writel_relaxed(0, data->base + REG_MMU_MISC_CTRL);
}
if (devm_request_irq(data->dev, data->irq, mtk_iommu_isr, 0,
dev_name(data->dev), (void *)data)) {
@ -718,8 +720,7 @@ static int __maybe_unused mtk_iommu_suspend(struct device *dev)
struct mtk_iommu_suspend_reg *reg = &data->reg;
void __iomem *base = data->base;
reg->standard_axi_mode = readl_relaxed(base +
REG_MMU_STANDARD_AXI_MODE);
reg->misc_ctrl = readl_relaxed(base + REG_MMU_MISC_CTRL);
reg->dcm_dis = readl_relaxed(base + REG_MMU_DCM_DIS);
reg->ctrl_reg = readl_relaxed(base + REG_MMU_CTRL_REG);
reg->int_control0 = readl_relaxed(base + REG_MMU_INT_CONTROL0);
@ -743,8 +744,7 @@ static int __maybe_unused mtk_iommu_resume(struct device *dev)
dev_err(data->dev, "Failed to enable clk(%d) in resume\n", ret);
return ret;
}
writel_relaxed(reg->standard_axi_mode,
base + REG_MMU_STANDARD_AXI_MODE);
writel_relaxed(reg->misc_ctrl, base + REG_MMU_MISC_CTRL);
writel_relaxed(reg->dcm_dis, base + REG_MMU_DCM_DIS);
writel_relaxed(reg->ctrl_reg, base + REG_MMU_CTRL_REG);
writel_relaxed(reg->int_control0, base + REG_MMU_INT_CONTROL0);

5
drivers/iommu/mtk_iommu.h
View File

@ -18,7 +18,10 @@
#include <soc/mediatek/smi.h>
struct mtk_iommu_suspend_reg {
u32 standard_axi_mode;
union {
u32 standard_axi_mode;/* v1 */
u32 misc_ctrl;/* v2 */
};
u32 dcm_dis;
u32 ctrl_reg;
u32 int_control0;