Hi John, >> >> ltq_mtd->map->map_priv_1 = LTQ_NOR_PROBING; > > this line should be dropped Yes, I noticed this mistake. I fixed it but forgotten to add thix fix to my commit -_- >> + /* We swap the addresses only if the EBU endianness swap is disabled */ >> + if (ltq_ebu_r32(LTQ_EBU_BUSCON0) & BIT(30)) > > add a define for BIT(30) please and we should really check if this a > v1.2 or newer. if my memory is correct this was a silicon bug inside > v1.0 and v1.1 In my kernel (OpenWrt) boot log I have : [ 0.000000] Linux version 4.4.14 (qa@serveurQA) (gcc version 5.3.0 (OpenWrt GCC 5.3.0 50020) ) #150 SMP Tue Jan 17 09:18:24 UTC 2017 [ 0.000000] SoC: xRX200 rev 1.2 [ 0.000000] bootconsole [early0] enabled [ 0.000000] CPU0 revision is: 00019556 (MIPS 34Kc) It would be better to ensure that the SoC version is >= 1.2 (as this bug was fixed in this version). You can get more informations in my OpenWrt pull request : https://github.com/openwrt/openwrt/pull/321 Regards, Sebastien.