[U-Boot] [U-Boot, v5, 1/5] mtd: nand: don't use read_buf for 8-bit ONFI transfers

[Tom Rini]

On Tue, May 06, 2014 at 12:46:16AM +0530, pekon gupta wrote:

> From: Brian Norris <computersforpeace at gmail.com>
> 
> Porting below commit from linux-tree, preserving original authorship & commit log
> commit bd9c6e99b58255b9de1982711ac9487c9a2f18be
> Author:     Brian Norris <computersforpeace at gmail.com>
> mtd: nand: don't use read_buf for 8-bit ONFI transfers
> 
>   Use a repeated read_byte() instead of read_buf(), since for x16 buswidth
>   devices, we need to avoid the upper I/O[16:9] bits. See the following
>   commit for reference:
> 
>   commit 05f7835975dad6b3b517f9e23415985e648fb875 (from linux-tree)
>   Author: Uwe Kleine-König <u.kleine-koenig at pengutronix.de>
>   Date:   Thu Dec 5 22:22:04 2013 +0100
> 
>       mtd: nand: don't use {read,write}_buf for 8-bit transfers
> 
>   Now, I think that all barriers to probing ONFI on x16 devices are
>   removed, so remove the check from nand_flash_detect_onfi().
> 
> Signed-off-by: Pekon Gupta <pekon at ti.com>

Applied to u-boot-ti/master, thanks!

-- 
Tom
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