jakllsch:

Installing a new build on a RT-N56U (v1) via TFTP results in a unresponsive system stuck in a boot loop.

These messages appear on the console:
[ 2.358662] of-flash 1c000000.nor-flash: do_map_probe() failed for type cfi_probe
[ 2.377424] of-flash 1c000000.nor-flash: do_map_probe() failed
[ 4.615722] VFS: Cannot open root device "(null)" or unknown-block(0,0): error -6

Bisection determined that this boot loop began occuring with:

commit dcdc6d9
Author: Mathias Kresin dev@kresin.me
Date: Wed Aug 22 07:26:39 2018 +0200

ramips: fix rt3883 pci pinmux