[U-Boot] [PATCH 2/9] riscv: Add a SYSCON driver for Andestech's PLIC

[Troy Benjegerdes <hozer@hozed.org>]

> > > >
> > > > Probably it makes more sense to put this to arch/riscv/cpu/ax25/Kconfig?
> > >
> > > I just refer to SIFIVE_CLINT. It also not make sense to place here, right ?
> >
> > Maybe, but since the cpu directory is renamed to 'generic', I am not
> > sure moving to that directory is a good idea.
> 
> Maybe I will still put it in /arch/riscv/Kconfig.
> And we can move them to the place they belong individually together if
> there have better place to accommodate to SIFIVE_CLINT.
> How do you think ?
> 



> > > > > +++ b/arch/riscv/lib/Makefile
> > > > > @@ -11,6 +11,7 @@ obj-$(CONFIG_CMD_GO) += boot.o
> > > > >  obj-y  += cache.o
> > > > >  obj-$(CONFIG_RISCV_RDTIME) += rdtime.o
> > > > >  obj-$(CONFIG_SIFIVE_CLINT) += sifive_clint.o
> > > > > +obj-$(CONFIG_NDS_PLIC) += nds_plic.o
> > > > >  obj-y  += interrupts.o
> > > > >  obj-y  += reset.o
> > > > >  obj-$(CONFIG_SBI_IPI) += sbi_ipi.o
> > > > > diff --git a/arch/riscv/lib/nds_plic.c b/arch/riscv/lib/nds_plic.c
> > > >
> > > > And move this driver to arch/riscv/cpu/ax25 since it's only available
> > > > in AX25 CPUs?
> > >
> > > Same as sifive_clint.c . Shall it also move away from /lib ?
> > >
> >
> > I agree, but see comments above :)


It seems to me there might be a usefull distinction between potentially 
generic things like the Sifive/Berkely/Rocket-chip clint [1] and other
vendor implementations which do not have necessarily have publicly 
reviewable hardware implementations.

[1] https://github.com/sifive/rocket-chip/blob/master/src/main/scala/devices/tilelink/CLINT.scala