AM625: OSPI NOR flash filesystem

Hello Tony,

Please refer to the filesystems packaged inside the Linux SDK under filesystem/am62xx-evm. Is base-image or thinlinux or tiny suitable for their usecase?
https://software-dl.ti.com/processor-sdk-linux/esd/AM62X/09_02_01_09/exports/docs/linux/Foundational_Components_Filesystem.html

I would expect that the customer would use the bootmode switches to dictate the boot source.

I am reassigning your thread to another team member to comment on flashing the filesystem to NOR flash.

Regards,

Nick

Hi, Nick, Prashant,

Is the tisdk-tiny-initramfs-am62xx-evm.cpio also a filesystem? how to use it? Can it be used with OSPI NOR or OSPI NAND?

in SDK8.6, there is a tisdk-tiny-image-am62xx-evm.tar.xz filesystem. 

Hi Tony,

Tony Tang said:

Is the tisdk-tiny-initramfs-am62xx-evm.cpio also a filesystem? how to use it? Can it be used with OSPI NOR or OSPI NAND?

This is indeed a filesystem but in a CPIO archive format to be used for booting Linux Kernel with an embedded minimal root filesystem. It is built into the Linux Kernel itself and so isn't flashed separately to any flash media.

Please refer to this FAQ for more understanding

https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1176944/faq-linux-how-to-boot-sitara-am3x-am4x-am6x-devices-from-initramfs-cpio-archive-ram-disk

 As for booting with regular filesystem, afaik we use UBIFS for NOR/NAND media

https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1018036/am6442-how-to-create-ospi-rootfs-ubifs-and-boot-linux-from-ospi-without-sd

I will reassign the thread to the subject matter expert for further support on this thread.

Regards,

Prashant