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omap: iommu: fix pte programming 

Fix the pte programming to set the page attributes correctly
by replacing the bitwise check with an explicit values check.

Otherwise, 16MB entries will be erroneously programmed like
4KB entries, which is not what the hardware expects.

Signed-off-by: Suman Anna <s-anna@ti.com>
Acked-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
This commit is contained in:
Suman Anna 2011-05-04 17:45:37 -05:00 committed by Ohad Ben-Cohen
parent 61c4f2c81c
commit 7e20b6f39a
1 changed files with 2 additions and 2 deletions
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4
arch/arm/mach-omap2/iommu2.c
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@ -225,8 +225,8 @@ static u32 omap2_get_pte_attr(struct iotlb_entry *e)
attr = e->mixed << 5;
attr |= e->endian;
attr |= e->elsz >> 3;
attr <<= ((e->pgsz & MMU_CAM_PGSZ_4K) ? 0 : 6);
attr <<= (((e->pgsz == MMU_CAM_PGSZ_4K) ||
(e->pgsz == MMU_CAM_PGSZ_64K)) ? 0 : 6);
return attr;
}