[OpenWrt-Devel] Random data on rootfs_data for tp-wr2543nd-v1 only with ath79

Chuanhong Guo gch981213 at gmail.com
Thu Feb 6 21:57:03 EST 2020


On Fri, Feb 7, 2020 at 6:44 AM Luiz Angelo Daros de Luca
<luizluca at gmail.com> wrote:
> Hello,
> I isolated the problem to be kernel upgrade from 4.14 to 4.19. If I build ath79 with 4.14, it simply works.
> The mtd problem also happens while booting 4.19 without touching the flash 4.19 (using initram image).

Flash reading is handled differently between 4.14 and 4.19. 4.14 reads
directly from 0x1f000000 where spi is mapped. But the interface used
for that got removed in 4.19 so bit-bang mode is used instead.
Could you try if removing
also breaks ath79/4.14?

Chuanhong Guo

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