SV: Fix to ROMRAM applications for EB40a

[Øyvind Harboe]

>> +	ROMRAM now copies to internal SRAM instead of the external
>> +	RAM board @ 0x2000000.
>
>This changes the current behaviour in an unconditional way. Could you
>change this so its controlled by CDL and by default uses the old
>behaviour.

How can I make .ldi scripts configurable via CDL?

>> +	* include/pkgconf/mlt_arm_at91_eb40a_romram.ldi:
>> +	Changed start address to be address 0x0.
>
>Any idea why it used to be 0x4000.

I don't really know.

- The EBxx HALs seems to be copy&paste jobbies,
so perhaps it bled over from a different HAL? The internal
ram is certainly not @ 0x2000000, as the comments in indicated.
- I use an ICE during development, so I haven't paid much attention
to the "angel" and other things that exist by default in the flash
of EB40a. Perhaps one of these can conditionally start executing
@ 0x4000? The RAM below <0x4000 would then be reserved for e.g.
Angel.
- Perhaps RAM <0x4000 is "reserved" for RedBoot? (I use my own
home brewed bootloader, because Redboot is too
developer oriented for deployment, missing serial ymodem to flash
programming and I don't need GDB support since I'm using an ICE).

> I know some targets have a
>translation look aside table in low memory. You don't want to write
>over the top of that.

"It works on my rocket".

I was hoping posting a patch might shed some light on why my changes
work :-)

Øyvind