[PATCH v2 0/7] Add Cortina Access basic DM drivers

Tom Rini trini at konsulko.com
Fri Jan 24 20:52:15 CET 2020


On Fri, Jan 24, 2020 at 06:58:13PM +0000, Alex Nemirovsky wrote:

> one last thing, since we are moving SoC code out of the board tree.
> would you prefer each SoC specific header directly in top level
> include directory or within nclude/cortina subdirectory?  i.e.
> include/ca7774.h vs include/cortina/ca7774.h?

Inside of arch/arm/include/asm/mach-caxxxx/ you can split things how you
think makes the most sense.  There's many other examples to look at
here.

> 
> > On Jan 24, 2020, at 10:42 AM, Tom Rini <trini at konsulko.com> wrote:
> > 
> > On Fri, Jan 24, 2020 at 06:34:40PM +0000, Alex Nemirovsky wrote:
> > 
> >> Sounds good Tom. We will send the next series with the ARMv8 low_level.S moved to arch/mach-caxxxx/
> >> Thanks for you guidance.  Did you see anything else in 2nd series that needs modified before we send 
> >> series 3 or can we assume those are fine to avoid sending another series after this issues is fixed in series 3?
> > 
> > That was all I noticed, thanks again.
> > 
> >> 
> >>> On Jan 24, 2020, at 10:30 AM, Tom Rini <trini at konsulko.com> wrote:
> >>> 
> >>> On Fri, Jan 24, 2020 at 05:55:29PM +0000, Alex Nemirovsky wrote:
> >>>> Looking inside
> >>>> grep -h CA board/cortina/common/armv8/lowlevel_init.S
> >>>> #if defined(CONFIG_SOC_CA7774)
> >>>> #if defined(CONFIG_SOC_CA8277B)
> >>>> 
> >>>> as we understand it, the alternative would lead to maintaining duplicate but slightly different code for each ARM based SoC in
> >>>> arch/arm/mach-ca7774
> >>>> arch/arm/mach-ca8277B
> >>>> arch/arm/mach-ca7742
> >>>> arch/arm/mach-ca8279
> >>>> arch/arm/mach-caXnnn
> >>>> 
> >>>> correct?  or should we simply create a arch/arm/mach-caxxxx, arch/mips/mach-caxxxx,  arch/xtensa/mach-axxxx, arch/riscv/mach-caxxxx, etc to maintain similar
> >>>> changes to each arch related custom code which varies slightly for each SoC variation within each architecture?
> >>>> What’s best to avoid maintaining duplicate code across SoC variations within the same ISA family?
> >>> 
> >>> I would hope we can get by with arch/arm/mach-caxxxx or so and
> >>> board/cortina/common/.  How are you handling common code in the linux
> >>> kernel?
> >>> 
> >>> -- 
> >>> Tom
> >> 
> > 
> > -- 
> > Tom
> 

-- 
Tom
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 833 bytes
Desc: not available
URL: <https://lists.denx.de/pipermail/u-boot/attachments/20200124/b4f76a3b/attachment.sig>


More information about the U-Boot mailing list