On Tue, Nov 03, 2015 at 03:36:11PM +0530, Vignesh R wrote: > + ti_qspi_enable_memory_map(spi); > + ti_qspi_setup_mmap_read(spi, read_opcode, addr_width, > + dummy_bytes); > + memcpy_fromio(buf, qspi->mmap_base + from, len); > + *retlen = len; > + ti_qspi_disable_memory_map(spi); We'll be constantly enabling and disabling memory mapping with this. I'm not sure that's a meaningful cost given that it doesn't actually remap anything but rather just switches hardware modes, we can always optimise it later if it is.
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