* [ECOS] PowerPC Ports
@ 2001-02-27 20:36 Robert Klinkhammer
2001-02-28 2:46 ` Jesper Skov
0 siblings, 1 reply; 2+ messages in thread
From: Robert Klinkhammer @ 2001-02-27 20:36 UTC (permalink / raw)
To: ecos-discuss
I downloaded that latest version of ecos (1.3.1) since I have been =
thinking of using it. I noticed that
it only supports 603 via simulation.
If I were to go about porting this to other powerpc variants, would the =
perferred approach be to extend
the current 60x support to include this, and then, via defines, deal =
with the specific differences?
These defines would have to be entered into the "cdl" stuff? sigh...
Or,. the other question would be, has anyone already done this? I am =
hoping to use a motorola 750
based board.
Thanks,
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [ECOS] PowerPC Ports
2001-02-27 20:36 [ECOS] PowerPC Ports Robert Klinkhammer
@ 2001-02-28 2:46 ` Jesper Skov
0 siblings, 0 replies; 2+ messages in thread
From: Jesper Skov @ 2001-02-28 2:46 UTC (permalink / raw)
To: Robert Klinkhammer; +Cc: ecos-discuss
>>>>> "Robert" == Robert Klinkhammer <klink@mediaone.net> writes:
Robert> I downloaded that latest version of ecos (1.3.1) since I have
Robert> been = thinking of using it. I noticed that it only supports
Robert> 603 via simulation.
Robert> If I were to go about porting this to other powerpc variants,
Robert> would the = perferred approach be to extend the current 60x
Robert> support to include this, and then, via defines, deal = with
Robert> the specific differences? These defines would have to be
Robert> entered into the "cdl" stuff? sigh...
Yup. The only CDL change necessary should be adding the below though:
cdl_component CYGPKG_HAL_POWERPC_PPC750 {
display "PowerPC 750 microprocessor"
default_value 1
implements CYGINT_HAL_POWERPC_VARIANT
description "
The PowerPC 750 microprocessor."
cdl_option CYGHWR_HAL_POWERPC_FPU {
display "Variant FPU support"
calculated 1
}
cdl_option CYGPKG_HAL_POWERPC_MSBFIRST {
display "CPU Variant big-endian"
calculated 1
}
}
Spoils the naming scheme though - it is based on a 604 core, right?
But also introduces some new stuff... G4, right? We may want to
create a new 7xx variant HAL.
Robert> Or,. the other question would be, has anyone already done
Robert> this? I am = hoping to use a motorola 750 based board.
To the best of my knowledge you are the first to mention the 750.
Jesper
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2001-02-28 2:46 ` Jesper Skov
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