[U-Boot] [PATCH v5 24/28] armv8/ls2085aqds: NAND boot support

[York Sun <yorksun@freescale.com>]

On 03/24/2015 09:34 AM, Kushwaha Prabhakar-B32579 wrote:
> 
>> -----Original Message-----
>> From: Sun York-R58495
>> Sent: Tuesday, March 24, 2015 9:15 PM
>> To: Wood Scott-B07421
>> Cc: u-boot at lists.denx.de; Kushwaha Prabhakar-B32579
>> Subject: Re: [PATCH v5 24/28] armv8/ls2085aqds: NAND boot support
>>
>>
>>
>> On 03/23/2015 06:34 PM, Scott Wood wrote:
>>> On Fri, 2015-03-20 at 19:28 -0700, York Sun wrote:
>>>> +Generage NAND image
>>>> +-------------------
>>>> +To form the NAND image, build u-boot with LS2085AQDS_NAND_defconfig.
>>>> +Append u-boot-with-spl.bin after RCW image. The RCW image should
>>>> +have these PBI commands
>>>> +
>>>> +1) CCSR 4-byte write to 0x00e00404, data=0x00000000
>>>> +2) CCSR 4-byte write to 0x00e00400, data=0x1800a000
>>>> +3) Block Copy: SRC=0x0104, SRC_ADDR=0x000000c0,
>>>> +DEST_ADDR=0x1800a000,
>>>> +BLOCK_SIZE=0x00014000
>>>
>>> The RCW source should probably be 0x107, not 0x104.  Bit 0x002
>>> requests first/last bad block markers rather than first/second, and
>>> bit 0x001 enables ECC.  Also, this documentation is LS2085A-specific
>>> (most of it will probably apply to all chips with this chassis), not
>>> RDB or QDS specific, with the exception of the RCW source ID which
>>> depends on the specific NAND chip.  It would be better to put it in
>>> one place rather than duplicate it, with a table of RCW source IDs for each
>> board.
>>>
>>> Also, you have RDB as having SRC=0x104, but that (as well as 0x107) is
>>> for a 2K-page NAND chip.  RDB has a 4K-page NAND, so I think you want
>>> RCW source to be 0x111.
>>>
>>
> for RDB. I think RCW source should be 0x119. 
> bad block at first/last page(ONFI requirement) and 4bit ECC
> 

I think 0x119 is correct. It is the same value I read back from rcw_src. I just
verified it boots OK. I have been using 0x104 as the source id incorrectly but
it also boots.

York