Hi! On Fri, Feb 7, 2020 at 6:44 AM Luiz Angelo Daros de Luca <luizl...@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 target/linux/ath79/patches-4.14/461-spi-ath79-add-fast-flash-read.patch also breaks ath79/4.14? Regards, Chuanhong Guo _______________________________________________ openwrt-devel mailing list openwrt-devel@lists.openwrt.org https://lists.openwrt.org/mailman/listinfo/openwrt-devel
