[U-Boot] NAND only (no NOR)

Nowadays, do many (PowerPC) embedded devices already risk omitting NOR flash and use a NAND device solely for booting and storing images ?

I'm talking about systems with 10 years life-cycle (so no MP3-players nor medical systems but somewhere in between).

We have a MPC8313E-RDB and I know booting from NAND is possible. U-boot seems to support it well, I assume it can read the kernel, ramdisk and dtb from NAND in memory and bootm this.

However, having no NOR flash means: - NAND should be programmable via JTAG (BDI3000 doesn't support this, Lauterbach/trace32 does) - Critical software images (u-boot, kernel, dtb) stored on NAND, while there's no NAND 'scrubbing', etc..

Thoughts/comments are welcome.