Re: [PATCH 1/5] mtd: ofpart: grab device tree node directly from master device node

From: Robert Jarzmik
Date: Thu Oct 29 2015 - 02:39:13 EST

Marek Vasut <marex@xxxxxxx> writes:

>> Isn't there the case of a single NAND controller with 2 identical chips,
>> each a 8 bit NAND chip, and the controller aggregating them to offer the
>> OS a single 16-bit NAND chip ?
> Is that using 1 or 2 physical chipselect lines on the CPU (controller) ?
I think it's 2 physical chipselects (CS0 and CS1). The way I understand it is
that the NAND controller asserts them both, issues the command on the command
line (shared between the 2 chips), and reads/writes on the separate data lines.


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