diff options
| -rw-r--r-- | drivers/iommu/exynos-iommu.c | 25 |
1 files changed, 9 insertions, 16 deletions
diff --git a/drivers/iommu/exynos-iommu.c b/drivers/iommu/exynos-iommu.c index 3a577a4..15787a1 100644 --- a/drivers/iommu/exynos-iommu.c +++ b/drivers/iommu/exynos-iommu.c @@ -383,24 +383,17 @@ static bool __sysmmu_disable(struct sysmmu_drvdata *data) static void __sysmmu_init_config(struct sysmmu_drvdata *data) { - unsigned int cfg = CFG_LRU | CFG_QOS(15); - unsigned int ver; - - ver = MMU_RAW_VER(__raw_readl(data->sfrbase + REG_MMU_VERSION)); - if (MMU_MAJ_VER(ver) == 3) { - if (MMU_MIN_VER(ver) >= 2) { - cfg |= CFG_FLPDCACHE; - if (MMU_MIN_VER(ver) == 3) { - cfg |= CFG_ACGEN; - cfg &= ~CFG_LRU; - } else { - cfg |= CFG_SYSSEL; - } - } - } + unsigned int cfg; + + data->version = MMU_RAW_VER(__raw_readl(data->sfrbase + REG_MMU_VERSION)); + if (data->version <= MAKE_MMU_VER(3, 1)) + cfg = CFG_LRU | CFG_QOS(15); + else if (data->version <= MAKE_MMU_VER(3, 2)) + cfg = CFG_LRU | CFG_QOS(15) | CFG_FLPDCACHE | CFG_SYSSEL; + else + cfg = CFG_QOS(15) | CFG_FLPDCACHE | CFG_ACGEN; __raw_writel(cfg, data->sfrbase + REG_MMU_CFG); - data->version = ver; } static void __sysmmu_enable_nocount(struct sysmmu_drvdata *data) |
