[U-Boot] [PATCH v2 5/8] nand: Merge new implementation of 1-bit ECC from Linux nand driver

[Scott Wood]

On 10/31/2011 07:22 AM, Christian Hitz wrote:
> Am 29.10.2011 00:30, schrieb Scott Wood:
>> On 10/12/2011 02:32 AM, Christian Hitz wrote:
>>> [backport from linux commit 02f8c6aee8df3cdc935e9bdd4f2d020306035dbe]
>>>
>>> This patch synchronizes the nand driver with the Linux 3.0 state.
>>>
>>> Signed-off-by: Christian Hitz <christian.hitz at aizo.com>
>>> Cc: Scott Wood <scottwood at freescale.com>
>>> ---
>>>
>>> Adds 1416 bytes to the image size.
>>
>> What does this version of the code do that warrants the code size
>> increase?  This could break some SPLs.
>>
>> If it's just a speed issue, we probably want to stick with the current code.
> 
> It's the rewrite for performance and support for 512 byte pages, but this is
> on the basis of the rewritten code.

Several SPLs make use of nand_ecc.c, so NACK replacing it with a larger
implementation.

We could have the new ECC implementation available as a build-time
alternative, though.

-Scott