spi-nor: maxronix MX25L12835F support

Michael Walle michael at walle.cc
Mon Mar 1 08:50:15 EST 2021


Am 2021-03-01 14:36, schrieb Pratyush Yadav:
> I think printing the correct flash name is somewhat important. Other
> than the handful of people who are reading this thread, few would know
> that SPI NOR calls mx25l12835f as mx25l12805d or vice versa. This can
> cause a lot of confusion among people trying to debug any issues.

Unfortunately, this is kind of a mess. If multiple flash devices
share the same id, it seems to be first come first serve. The kernel
will print the name which was introduced first.

This isn't the only flash which is affected. Have a look at
   drivers/mtd/spi-nor/winbond.c
There are all kind of flash names, some of them are not even existing
as this particular string, eg. take w25q64jwm, its actually "Winbond
W25Q64JW-IM or W25Q64JW-JM".

So yes, it would be nice to have such a thing, but for now, I will
take the kernel output as a rough estimation what might really be
used on the board.

-michael



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