S25FS512SDSMFI011 Linux 5.10.35 driver

[KeTs_2342536]

Hi Team,

Have S25FS512SDSMFI011 Linux 5.10.35 driver?

Main chip is NXP LS1046A.

Exist major issue is starting R/W issue of SPI Flash; read is OK, but write is fail at NOR Flash.

Regard,

Kevin

[Yuvraj]

Hi,

Thank you for contacting Infineon Technologies.

It looks like an issue of overlaid 4KB sector support in older version of Linux. 

Hope this would help: https://patchwork.ozlabs.org/project/linux-mtd/list/?series=205504&state=*

The patches in this link fixes that bugs.
It was upstreamed since v5.12.

Please confirm if this fix is already back-ported to your v5.10 version.


Regards,

Yuvraj 

[KeTs_2342536]

Hi Yuvraj,

We want to adjust Uniform Sector Architecture mode, but it seems impossible to adjust.

 

 

Could you help us?

It’s our exist source code.

Regard,

Kevin 

[Yuvraj · Accepted solution]

Hi,

The source code you are using has some problems.

1) You are using 4 as address length i.e., SPI_MEM_OP_ADDR(4,. This device is 3-byte address mode by default. So, you needs to use 3 or enter 4B address mode in advance.

2) You are using 0x0080004 as register address but CR3NV is assigned to 0x00000004.

3) dummy cycles for Read Any Register (65h) is 8 cycles by default. Use '1' (means '1' byte = 8 cycles in single SPI mode) instead of SPI_MEM_OP_NO_DUMMY.


Thanks and Regards,

Yuvraj