[PATCH 5/5] bsps/sparc: Simplify memory initialization

[Jiri Gaisler]

On 6/8/21 4:14 PM, Sebastian Huber wrote:
> On 08/06/2021 16:03, Gedare Bloom wrote:
>> I guess at
>> some time, loading initialized data from the ROM was needed, but now
>> it is not?
>
> I asked about this some time ago. I think these days the RTEMS application is always loaded by a boot loader (GRMON). If the data copy is really necessary, then an application can still add this step as a very early system initialization step, since boot_card() and the system initialization loop doesn't use global data (only read-only and BSS data). However, the SMP startup would still not work in this case. A boot loader is a better place to load the sections.
>
The code is an artifact from the old erc32 days, when we would boot and execute from ROM and the .data had to be copied over to RAM. With leon1/2/3, this is not used anymore as a boot loader is made from the RAM image using a custom tool (mkprom).

Jiri.