Re: [LinuxBIOS] smbus_write_byte

[Marc Jones]

Joseph Smith wrote:
> Quoting Corey Osgood :
> > yhlu wrote:
> > > just provide one fake spd array...
> > >
> > > YH
> >
> > My thoughts exactly. You can't write to the smbus because there's no
> > device on the smbus at that location to receive those writes.
> >
> > -Corey
>
> How would I provide a fake spd array? Here is the situation. My board  
> has the onboard memory without a SPD, I could just hardcode this into  
> the northbridge raminit.c. But I don't want to do that so people that  
> may want to use the northbridge src for other boards won't have to  
> deal with it. So right now I have auto.c call a function that runs in  
> between sdram_set_spd_registers and sdram_enable, like this:
>
> sdram_set_spd_registers(memctrl);
>    onboard_sdram_set_registers(memctrl);
>    sdram_enable(0, memctrl);
>
> This function, onboard_sdram_set_registers manually sets up the regsters.
>
> Anyways I would also like to get the smbus_write_byte write going to  
> setup my tv-out registers on my tv-out chip?
>
> Thanks - Joe

Joe,
There is an example of an spd array in 
mainboard/artecgroup/dbe61/cache_as_ram_auto.c spd_read_byte(). You will 
have to generate the correct SPD values for your memory.

Is the normal smbus_write_byte not working?

Marc