Re: [PATCH v5 1/2] mtd: spi-nor: macronix: add support for Macronix octaflash

[zhengxunli@xxxxxxxxxxx]

Hi Tudor,

> Subject
> 
> Re: [PATCH v5 1/2] mtd: spi-nor: macronix: add support for Macronix 
octaflash
> 
> On 5/17/21 9:14 AM, Zhengxun Li wrote:
> > +       { "mx66lm1g45g", INFO(0xc2853b, 0, 32 * 1024, 4096,
> > +                             SECT_4K | SPI_NOR_OCTAL_DTR_READ |
> > +                             SPI_NOR_OCTAL_DTR_PP | 
SPI_NOR_4B_OPCODES)
> > +               .fixups = &octaflash_fixups },
> 
> I have a mx66lm1g45g which does not define SFDP tables, how you'll 
> differentiate
> between the two? Mine will fail after reset. I'm working to address 
> the flash ID
> collisions, will send patches soon. I won't queue any new flash 
> additions until
> we'll solve the ID collisions problem.

I asked our flash team, unfortunately, they said that due to SFDP on 
octaflash not existing from beginning, therefore, some old parts may not 
support the SFDP parameter inside the Flash. For MX66LM1G45G, we have SFDP 
available from 2020/03. However, other flash maybe meet the same problem, 
I will update them later. 

As for ID conflicts, I will discuss with them which series of flash has 
encountered this problem, and I will update it later.

Thanks,
Zhengxun


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