Read/Fast Read chip status sheet (re-send)

[Steven Zakulec]

(I'm re-sending this now because carldani asked if I could re-send it after
FOSDEM).
Hi, here's a copy of the sheet I created covering most of the chips (it's
the same chip list as in my previous list- the form factor & voltage one).
If I couldn't figure out whether the chip had read/fast read, I left it
blank.  Otherwise, I filled in on the sheet the instruction code, any notes,
and whether the mode(s) on the datasheet were the ones Flashrom wanted.

[Stefan Reinauer]

* Steven Zakulec  [110208 02:55]:
> (I'm re-sending this now because carldani asked if I could re-send it after
> FOSDEM).
> Hi, here's a copy of the sheet I created covering most of the chips (it's the
> same chip list as in my previous list- the form factor & voltage one).
> If I couldn't figure out whether the chip had read/fast read, I left it blank. 
> Otherwise, I filled in on the sheet the instruction code, any notes, and
> whether the mode(s) on the datasheet were the ones Flashrom wanted.

Any chance to make a flashrom patch from that?

[Steven Zakulec]

On Tue, Feb 8, 2011 at 6:53 PM, Stefan Reinauer <
[e-mail]> wrote:
> Steven Zakulec  [110208 02:55]:
> > (I'm re-sending this now because carldani asked if I could re-send it
>
> after
> > FOSDEM).
> > Hi, here's a copy of the sheet I created covering most of the chips (it's
>
> the
> > same chip list as in my previous list- the form factor & voltage one).
> > If I couldn't figure out whether the chip had read/fast read, I left it
>
> blank.
> > Otherwise, I filled in on the sheet the instruction code, any notes, and
> > whether the mode(s) on the datasheet were the ones Flashrom wanted.
>
> Any chance to make a flashrom patch from that?
>
> Right now, very little considering I'm not really sure how to turn it into

a patch. (I'm not really a programmer, I just sit in chatrooms with them).
If you happen to have a nice template I can paste things into, I'd be happy
to try doing that.

Sorry about that.

[Rudolf Marek]

Hi,

I believe Carl-Daniel did some RFC patch. I checked the VIA SPI and it seems the 
Fast Read Command should work. Also SB700 seems to have kind of support for this 
on register level, but in contrary the 45215_sb710_ds_pub_1.25.pdf says fast 
reads mode is unsupported???

7.11      SPI ROM Interface
SPI ROM is supported up to 33 MHz. Maximum ROM size supported is 16 MB. Burst 
read and fast read cycles are not supported.

Same for SB800.

I can try on VIA if it gets faster with some hacked version maybe.

Basically we could have just "Fast read" without any other data lines... It 
works like a "read" command with extra clock cycles and higher frequency.

Thanks,
Rudolf