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-rw-r--r--drivers/iommu/exynos-iommu.c14
1 files changed, 0 insertions, 14 deletions
diff --git a/drivers/iommu/exynos-iommu.c b/drivers/iommu/exynos-iommu.c
index 06fc70ee4389..4fc31fc6a49a 100644
--- a/drivers/iommu/exynos-iommu.c
+++ b/drivers/iommu/exynos-iommu.c
@@ -245,13 +245,6 @@ static void __sysmmu_set_ptbase(void __iomem *sfrbase,
__sysmmu_tlb_invalidate(sfrbase);
}
-static void __sysmmu_set_prefbuf(void __iomem *sfrbase, unsigned long base,
- unsigned long size, int idx)
-{
- __raw_writel(base, sfrbase + REG_PB0_SADDR + idx * 8);
- __raw_writel(size - 1 + base, sfrbase + REG_PB0_EADDR + idx * 8);
-}
-
static void __set_fault_handler(struct sysmmu_drvdata *data,
sysmmu_fault_handler_t handler)
{
@@ -401,13 +394,6 @@ static int __exynos_sysmmu_enable(struct sysmmu_drvdata *data,
data->pgtable = pgtable;
__sysmmu_set_ptbase(data->sfrbase, pgtable);
- if ((readl(data->sfrbase + REG_MMU_VERSION) >> 28) == 3) {
- /* System MMU version is 3.x */
- __raw_writel((1 << 12) | (2 << 28),
- data->sfrbase + REG_MMU_CFG);
- __sysmmu_set_prefbuf(data->sfrbase, 0, -1, 0);
- __sysmmu_set_prefbuf(data->sfrbase, 0, -1, 1);
- }
__raw_writel(CTRL_ENABLE, data->sfrbase + REG_MMU_CTRL);