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

[prabhakar at freescale.com]

> -----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

-prabhakar