On Thursday 17 September 2009, Alexei Babich wrote:
> 1. hwecc{no,1bit,4bit,8bit} (last two only for imx35, but still not sure)
> 2. cs{0,1,2,3} (only for imx35)
> 3. pagesize{512,2048,4096} (force override pin/fuse captured values, last one
> only for imx35)
> 4. buswidth{8,16} (force override pin/fuse captured values)
Other NAND drivers just have parameters to the "nand device"
registration call for all of those ... except #3, since the
device characteristics are retrieved from the actual NAND
chip found at the relevant address.
The option parsing code will be small; a lot less involved
than supporting multiple hardware ECC modes, for example!
Re "hweccno" ... simplify things, and don't. Just have the
NAND driver always implement hardware ECC, if its page I/O
calls are used. Use the generic NAND code to trigger "no
ECC" or "soft ECC" (a 1bit flavor) modes.
> 2. Is OpenOCD interacts correctly with MLC NAND-flash chips with
> large (4096 bytes) pages?
Should. It's not like they're any different from SLC except
that they can't be erased very much, right?
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