mmu: flush ttb in map_io_sections
We need to flush out the ttb in order to make the changes observable to the page walker. Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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@ -188,6 +188,7 @@ void *map_io_sections(unsigned long phys, void *_start, size_t size)
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for (sec = start; sec < start + size; sec += (1 << 20))
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for (sec = start; sec < start + size; sec += (1 << 20))
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ttb[sec >> 20] = (phys++ << 20) | PMD_SECT_DEF_UNCACHED;
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ttb[sec >> 20] = (phys++ << 20) | PMD_SECT_DEF_UNCACHED;
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dma_flush_range((unsigned long)ttb, (unsigned long)ttb + 0x4000);
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tlb_invalidate();
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tlb_invalidate();
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return _start;
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return _start;
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}
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}
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