[PATCH 1/2] mtd: spi-nor: macronix: Add support for mx66l2g45g

[Michael Walle]

Hi,

Am 2022-05-23 12:12, schrieb Jiaqing Zhao:
>> Am 2022-05-23 10:50, schrieb Jiaqing Zhao:
>>> Yes this one supports SFDP according to its spec.
>>> 
>>> On my setup, I cannot see the sysfs object. Do I need to enable some 
>>> specific
>>> kernel config or it's SPI controller related? My setup is running 
>>> kernel 5.15.
>> 
>> No, it should be there since v5.14. See commit 36ac02286265. And you 
>> shouldn't
>> need to enable any special configuration option.
>> 
>> Did you do a "find /sys -name sfdp"?
>> 
>> -michael
> 
> I tried, it give empty result. The system I'm working on disables 
> kernel module,
> and the SPI controller driver calls spi_nor_probe() directly, will this 
> be the
> issue?
> 
> And is it possible to manually load the spi-nor driver via the bind 
> interface?
> If it is possible, what should the parameters be?

Is your spi flash probed at all?

-michael