Messages in this thread | | | Date | Fri, 29 May 2020 14:57:58 +0530 | From | Pratyush Yadav <> | Subject | Re: [PATCH v4 2/7] mtd: spi-nor: sfdp: parse xSPI Profile 1.0 table |
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On 29/05/20 03:36PM, Mason Yang wrote: > JESD251, xSPI profile 1.0 table supports octal DTR mode. > Extract information like the fast read opcode, dummy cycles for various > frequencies, the number of dummy cycles needed for a Read Status > Register command, the number of address bytes needed for a Read > Status Register command, read volatile register command and write > volatile register command.
Like I said before, please don't re-introduce the functions. My patch series already parses the table. Add whatever new feature you want on top of it.
> According to BFPT 20th DWORD of octal maximum speed, driver get it's > specific dummy cycles from profile 1.0 table and then could update > it to device by their fixup hooks.
My patch [0] already find out the dummy cycles from the table as you suggested, though it doesn't consult the BFPT. Instead, it uses the dummy cycle fields themselves as indication that a speed is supported or not.
[0] https://lore.kernel.org/linux-mtd/20200525091544.17270-10-p.yadav@ti.com/
-- Regards, Pratyush Yadav
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