I am adding support for Xiaomi WR30U, it use mtk filogic MT7981B soc with 128M spi nand.
It's stock firmware, u-boot, bl2 enabled nmbm.
Should i enable it in my config?
If i did not enable it, what will happen?
Did bad block will be more?
Please help me with enable question, thanks!
See how other similar devices were added.
look at commit https://github.com/openwrt/openwrt/commit/7cbe34170e3d8471c1ebacde33a2372c92433be4
in mt7981b-glinet-gl-mt3000.dts You will find mediatek,nmbm;
and about nmbm
This is mediatek solution for bad-block collection and remapping.
Like additional layer on top of hardware NAND that is filesystem independent.
If bootloader have it enabled and OEM use it . This should be also enabled in OpenWRT
Thanks for your reply, the stock bootloader, u-boot and firmware enabled NMBM.
But the same devices in openwrt tree disabled them, their stock enabled NMBM.
Those devices rebuild their bootloader and u-boot with NMBM disabled in openwrt build.
What i should do in this situation?
I added another config with nmbm enabled.
Now it have two same layout config, one disable nmbm for openwrt u-boot and the other enable nmbm for other u-boot.
Problem solved.
According to @daniel 's advice, NMBM is not a necessary feature and should be disabled whenerver it is possible.
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