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    Subject[patch 04/13] powerpc: fix cell iommu setup
    A small bug crept in the iommu driver when we made it more
    generic. This patch is needed for boards that have a dma
    window that does not start at bus address zero.

    Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>

    Index: linux-2.6.15-rc5/arch/powerpc/platforms/cell/iommu.c
    ===================================================================
    --- linux-2.6.15-rc5.orig/arch/powerpc/platforms/cell/iommu.c
    +++ linux-2.6.15-rc5/arch/powerpc/platforms/cell/iommu.c
    @@ -289,7 +289,7 @@ static void cell_do_map_iommu(struct cel
    ioc_base = iommu->mapped_base;
    ioc_mmio_base = iommu->mapped_mmio_base;

    - for (real_address = 0, io_address = 0;
    + for (real_address = 0, io_address = map_start;
    io_address <= map_start + map_size;
    real_address += io_page_size, io_address += io_page_size) {
    ioste = get_iost_entry(fake_iopt, io_address, io_page_size);
    @@ -302,7 +302,7 @@ static void cell_do_map_iommu(struct cel
    set_iopt_cache(ioc_mmio_base,
    get_ioc_hash_1way(ioste, io_address),
    get_ioc_tag(ioste, io_address),
    - get_iopt_entry(real_address-map_start, ioid, IOPT_PROT_RW));
    + get_iopt_entry(real_address, ioid, IOPT_PROT_RW));
    }
    }

    --

    -
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