Messages in this thread | | | Date | Tue, 28 Sep 2021 14:54:40 +0200 | From | Miquel Raynal <> | Subject | Re: [PATCH 3/3] mtd: rawnand: qcom: Add support for page scope read |
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Hello,
mdalam@codeaurora.org wrote on Tue, 28 Sep 2021 17:51:00 +0530:
> On 2021-09-15 15:27, Md Sadre Alam wrote: > > QPIC V2.0 onwards QPIC controller support enhanced read mode > > like page scope read and multi page read. > > > > In QPIC V1, SW is needed to write EXEC_CMD register for each
the driver needs to (same below)
> > Code word and collect any Status related to that CW before > > issueing EXEC_CMD for next CW. > > > > Page scope command is truly a page mode command where SW is > > required to issue EXEC_CMD only once for a page. Controller > > HW takes care of Codeword specific details and automatically > > returns status associated with each CW to BAM pipe, dedicated > > for status deposition. > > > > With this command, SW now can issue one read command for a page > > and upon receiving completion interrupt, can process status, > > that have already been deposited in memory through status BAM pipe. > > > > Signed-off-by: Md Sadre Alam <mdalam@codeaurora.org> > > --- > > drivers/mtd/nand/raw/qcom_nandc.c | 77 > ++++++++++++++++++++++++++++++++++++--- > > 1 file changed, 71 insertions(+), 6 deletions(-) > >
Thanks, Miquèl
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