On 27 July 2015 22:00:15 CEST, Scott Wood <scottw...@freescale.com> wrote: >On Tue, 2015-07-21 at 00:35 +0200, Marcel Ziswiler wrote: >> From: Marcel Ziswiler <marcel.ziswi...@toradex.com> >> >> Fix PIO read_byte() implementation not only used for the legacy READ >ID >> but also the PARAM command now required for proper ONFI detection. >> >> This fix is inspired by Lucas Stach's Linux Tegra NAND driver of >late. > >Could you explain a bit more how this fixes issues with READ PARAM?
I vaguely remember that those commands are special on 16-bit bus NAND (e.g. always return 8-bit data regardless) and later Linux MTD fixed/changed the way this is handled which in turn broke once U-Boot pulled that in. Which as explained in my commit message this fixes by doing what Lucas does in Linux (not mainline yet but getting there soon I hope). >> While at it also disable subpage writes. > >Why are these two changes combined? Well just because it's a one line fix but if required I can split that in a separate patch as well. _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
