On 05/06/2013 11:53:52 AM, Michal Simek wrote:
Hi guys,
Zynq supports 8 and 16bit ONFI nand flashes.
We can count number of connected pins and from that
we know if 8bit or 16bit nand flash is used.
I have looked at the code and contains ONFI detection
with correct detection of bus width + checking later.
Why also not setup proper chip->options for NAND_BUSWIDTH_16?
Not sure how others but if driver expect just ONFI devices
and support 8 and 16bit options why not just to setup
chip options based on information from ONFI or
not check that (busw != (chip->options & NAND_BUSWIDTH_16))
for onfi case.
This is fixed in current Linux, with NAND_BUSWIDTH_AUTO. There was a
patchset to merge in recent Linux MTD code a while back, but an
expected respin didn't come. I'll try to fix it up when I process this
merge window's patches.
-Scott
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