[U-Boot] [PATCH v2 08/16] tegra: nand: fix read_byte required for proper onfi detection

[Scott Wood]

On Tue, 2015-07-21 at 00:35 +0200, Marcel Ziswiler wrote:
> From: Marcel Ziswiler <marcel.ziswiler at 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?

> While at it also disable subpage writes.

Why are these two changes combined?

-Scott