Re: [patch] Mips64 Ocelot-C and Jaguar ATX platform support

[Louis Hamilton <hamilton@redhat.com>]

Will,

William Jhun wrote:

> Louis,
>
> Using Ralf's pre-packaged mips64 gcc 2.95.4 / binutils 2.13.2.1 .rpm, I
> wasn't able to get this to build without having CPU-specific gcc opts
> (patch below, please verify what flags are appropriate). Also, shouldn't
Arggh.. my (different) build environment meant messing with options in my
arch/mips64/Makefile  (like using "-march=rm9000" instead of 
"-mcpu=r8000 -mips4").
The CFLAGS change below looks fine.
Btw, an ifdef for CONFIG_CPU_RM7000 will be required too, using the
same CFLAGS options as the rm9000.

> define_bool CONFIG_BOOT_ELF32 y
>
> be in the config-shared.in in the jaguar section? 
yes

> At this point (with latest linux_2_4 tree), I can boot the kernel but get
> a hang after mounting NFS root via the gt64340 eth0. If I can find a
> serial cable for the second port, I might try to step with kgdb...
>
> Thanks,
> Will
thanks

> Index: arch/mips64/Makefile
> ===================================================================
> RCS file: /home/cvs/linux/arch/mips64/Makefile,v
> retrieving revision 1.22.2.34
> diff -U3 -r1.22.2.34 Makefile
> --- arch/mips64/Makefile        5 Jul 2003 13:17:04 -0000       1.22.2.34
> +++ arch/mips64/Makefile        28 Jul 2003 18:37:47 -0000
> @@ -79,6 +79,9 @@
> #CFLAGS                += -mips64      # Should be used then we get a
> MIPS64 compiler
> CFLAGS         += -mcpu=r8000 -mips4
> endif
> +ifdef CONFIG_CPU_RM9000
> +GCCFLAGS       += -mcpu=r8000 -mips4
> +endif
>
> #
> # We unconditionally build the math emulator
>
> On Wed, 23 Jul 2003, Louis Hamilton wrote:
>
> > Ralf,
> >
> > Here is 64-bit support for both the RM7000-based Ocelot-C and
> > RM9000-based Jaguar ATX platforms.
> > Since the port was 2.4.21 based, this patch submission is for the 2.4 tree.
> > This patch supersedes the Ocelot-C patch I sent earlier, since it
> > encompasses both platforms.
> >
> > Notes the board support lives under arch/mips/momentum.
> > Also, CONFIG_BOARD_SCACHE and CONFIG_RM7000_CPU_SCACHE are utilized and
> > integrated into each platform's default configuration files.
> > As in the first patch, drivers/net/mv64340_eth.{c,h} is added to provide
> > ethernet support.
> >
> > If it looks ok, please check changes into the tree.
> >
> > Regards,
> > Louis
> >
> > Louis Hamilton
> > Red Hat, Inc.