From 3487a63955c34ea508bcf4ca5131ddd953876e2d Mon Sep 17 00:00:00 2001
From: Sourav Poddar <sourav.poddar@ti.com>
Date: Wed, 6 Nov 2013 20:05:35 +0530
Subject: [PATCH] drivers: mtd: m25p80: add quad read support

Some flash also support quad read mode. Adding support for quad read
mode in m25p80 for Spansion and Macronix flash.

[Tweaked by Brian]

With this patch, quad-read support will override fast-read and
normal-read, if the SPI controller and flash chip both support it.

Signed-off-by: Sourav Poddar <sourav.poddar@ti.com>
Tested-by: Sourav Poddar <sourav.poddar@ti.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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