iommu/exynos: Remove prefetch buffer setting
authorCho KyongHo <pullip.cho@samsung.com>
Mon, 12 May 2014 06:14:50 +0000 (11:44 +0530)
committerJoerg Roedel <jroedel@suse.de>
Tue, 13 May 2014 17:12:53 +0000 (19:12 +0200)
commit8f8fcf970e5866150af98233ae7ebf25ffe8cba7
tree6731398b633a279e4fa22ff0198019e8953c7b4e
parent3ad6b7f3a41ba6bf4503be442802072ca9dc8336
iommu/exynos: Remove prefetch buffer setting

Prefetch buffer is a cache of System MMU 3.x and caches a block of
page table entries to make effect of larger page with small pages.
However, how to control prefetch buffers and the specifications of
prefetch buffers different from minor versions of System MMU v3.
Prefetch buffers must be controled with care because there are some
restrictions in H/W design.

The interface and implementation to initiate prefetch buffers will
be prepared later.

Signed-off-by: Cho KyongHo <pullip.cho@samsung.com>
Signed-off-by: Shaik Ameer Basha <shaik.ameer@samsung.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
drivers/iommu/exynos-iommu.c