[OpenWrt-Devel] [PATCH 3/3] ar71xx: add spi nand driver support

Pan, Miaoqing miaoqing at qti.qualcomm.com
Fri Jul 10 05:54:58 EDT 2015

Agree with you,  I investigated this, tried to merge two into one.  E.g.  Implement the common core for spinand,  separate  vendors related codes,  but give up finally as no device to verify mt29f:(  So I only add it to support for ath79 platform.


-----Original Message-----
From: Jonas Gorski [mailto:jogo at openwrt.org] 
Sent: Friday, July 10, 2015 5:44 PM
To: Pan, Miaoqing
Cc: OpenWrt Development List
Subject: Re: [OpenWrt-Devel] [PATCH 3/3] ar71xx: add spi nand driver support


On Fri, Jul 10, 2015 at 9:18 AM,  <miaoqing at qti.qualcomm.com> wrote:
> From: Miaoqing Pan <miaoqing at codeaurora.org>
> Derived from 'drivers/staging/mt29f_spinand'.
> Only support Giga Device SPI NAND device now,
>     - GD5F1GQ4U 1G 3.3V 8-bit
>     - GD5F2GQ4U 2G 3.3V 8-bit
>     - GD5F1GQ4R 1G 1.8V 8-bit
>     - GD5F2GQ4R 2G 1.8V 8-bit
> Signed-off-by: Miaoqing Pan <miaoqing at codeaurora.org>

This looks exactly like mt29f_spinand, except with ath79_ prefixed to everything. Also I don't see anything ath79 specific in here.

Why can't you just use mt29f_spinand directly? And why do you need to create a copy of it instead of just fixing it in the driver itself?

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