[rescue] SPARCstation 1 boot woes

[Dave McGuire]

On 6/2/25 21:04, Maciej W. Rozycki wrote:
>>> I don't currently have plans as I quickly modified another project so it's a
>>> bit of a mess, I may refactor it in the future for release.
>>>
>>> It works pretty much as expected, it just maps the PROM in from the physical
>>> address based on the model/series selected, checks for the size and then
>>> sends it over XMODEM.
>>>
>>> If there is anything specific you are interested in, let me know!
>>
>>    Ok, no worries.  I'm just interested in how you mapped the PROM into the
>> address space.
> 
>   IIUC it's a bare metal app, so it can do whatever hardware permits, such
> as map MMIO locations via the MMU to gain access (I'm not familiar enough
> with the SPARC architecture to know if it has a real mode, in which case
> no mapping would be required and any bus locations could be peeked at
> directly).

   Yes, of course.  I could go dig it up in the docs, but I just wanted 
to read his code.  I don't need to do it, but I'm interested enough to 
spend 10mins reading his code, and not interested enough to spend a few 
hours slogging through the docs.  But the code is unavailable, so I'm 
forgetting about it.

             -Dave

-- 
Dave McGuire, AK4HZ
New Kensington, PA