Re: spdmem matching (Was: envstat drivers on SUN Ultra-45?)

Hello,

On Sat, 24 Jan 2026 18:46:58 +0100
Julian Coleman <[email protected]> wrote:

> Hi,
> 
> I have my U45 running and notice this as well:
> 
> > [     1.000000] spdmem0 at iic0 addr 0x57
> > [     1.000000] spdmem0: FPM
> > [     1.000000] spdmem0: 0 rows, 0 cols, 0 banks, 0ns tRAC, 0ns tCAC  
> 
> However it's not on a memory card.  We match because spdmem_i2c.c has an
> entry matching the compatible string:
> 
>   { .compat = "i2c-at34c02" },
> 
> as well as (later) name matches for "dimm-spd" and "dimm".  Looking at
> the ofctl output that I have handy, it looks like all the memory modules
> have  "dimm-spd" or "dimm".  So, can we remove this compatible entry?

I think I added it because my Tadpole Viper has it as the only entry in
'compatible', and IIRC the name matching didn't find it for some
reason. It's been years ago though, memory is fuzzy :/

Since it's causing confusion I have no objection to removing it.

have fun
Michael