We have a shipping product based on the Logic PD AM3517 SOM module, and our code base is built on Linux 2.6.37 which is listed as the supported Linux Kernel on the TI support page. (http://www.ti.com/tool/linuxezsdk-sitara)

There is an “Design-In Notice” published by NAND FLASH maker Macronix that notes two requirements in later major Linux releases 3.8.x and 4.4.x. to properly manage NAND FLASH issues in older releases. (see sections 5.1 and 8.2 of this document: http://www.macronix.com/L...ign-In%20Notice.pdf)

I have been asking around about board support for later Kernels beyond 2.6.37, and that seems to be a NO-GO. So several of us were wondering if anyone had ever considered sort of "back-porting" layers of drivers, like perhaps the MTD, UBI and UBIFS from say a later Kernel like 4.4.x to our old supported 2.6.37.....how crazy / possible us that?

Our NAND FLASH issues seem to stem from improper handling of empty space and I think scrubbing the the supported NAND drivers in 2.6.37......so rather than trying to reverse engineer those changes from the latest drivers and re-engineering them into the old source..........how about just pulling in them all as one big port. (and we might also get other NAND FLASH enhancements as well.....)

Any thoughts....any experience.....any read flag warnings?

Thanks,

-Quentin Lewis