[U-Boot] [PATCH] MTD/SPI/FLASH: add support for Ramtron FRAMs using SPI

[Mike Frysinger <vapier@gentoo.org>]

On Saturday, August 28, 2010 18:15:43 Reinhard Meyer wrote:
> Dear Mike Frysinger,
> > On Thursday, August 26, 2010 16:00:50 Reinhard Meyer wrote:
> > interesting, but what if we push it further.  something like this
> > (untested):
>
> That code does not address the following issues to complete extend:
> 
> 1. JEDEC conformant that have ID in first byte
> 2. JEDEC conformant that have ID in later byte

why doesnt it ?  look at the structure i created a bit closer as well as the 
code that parses it.

> The question that remains is if any ID can be assigned twice in different
> positions and them meaning different manufacturers?
> 
> 7f 7f 7f 7f 7f 7f c2 = ramtron

{ 6, 0xc2, ramtron_probe, },

> 7f 7f 7f c2 = some other manufacturer?

{ 3, 0xc2, some_other_manu_probe, },

> 3. non JEDEC conformant or those that do not honor the read-id command
> and thus present 0xff _if_ the MISO line is pulled up

that isnt really changed at all by my patch.  there is a simple idcode[0] == 
0xff branch for people to call probe functions which are prepared to handle 
non-jedec compatible probes.
-mike
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