linux-kernel - Re: [PATCH v5 01/13] powerpc: Remove Xilinx PPC405/PPC440 support

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Message-ID: <20200616002720.GA1307277@ubuntu-n2-xlarge-x86>
Date:   Mon, 15 Jun 2020 17:27:20 -0700
From:   Nathan Chancellor <natechancellor@...il.com>
To:     Christophe Leroy <christophe.leroy@...roup.eu>
Cc:     Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        Michael Ellerman <mpe@...erman.id.au>, michal.simek@...inx.com,
        arnd@...db.de, linuxppc-dev@...ts.ozlabs.org,
        linux-kernel@...r.kernel.org, clang-built-linux@...glegroups.com
Subject: Re: [PATCH v5 01/13] powerpc: Remove Xilinx PPC405/PPC440 support

On Thu, May 21, 2020 at 04:55:52PM +0000, Christophe Leroy wrote:
> From: Michal Simek <michal.simek@...inx.com>
> 
> The latest Xilinx design tools called ISE and EDK has been released in
> October 2013. New tool doesn't support any PPC405/PPC440 new designs.
> These platforms are no longer supported and tested.
> 
> PowerPC 405/440 port is orphan from 2013 by
> commit cdeb89943bfc ("MAINTAINERS: Fix incorrect status tag") and
> commit 19624236cce1 ("MAINTAINERS: Update Grant's email address and maintainership")
> that's why it is time to remove the support fot these platforms.
> 
> Signed-off-by: Michal Simek <michal.simek@...inx.com>
> Acked-by: Arnd Bergmann <arnd@...db.de>
> Signed-off-by: Christophe Leroy <christophe.leroy@...roup.eu>

This patch causes qemu-system-ppc to fail to load ppc44x_defconfig:

$ make -skj"$(nproc)" ARCH=powerpc CROSS_COMPILE=powerpc-linux- O=out/ppc distclean ppc44x_defconfig zImage

$ timeout --foreground 30s unbuffer \
qemu-system-ppc \
-machine bamboo \
-no-reboot \
-append "console=ttyS0" \
-display none \
-initrd ../../cbl/github/boot-utils/images/ppc32/rootfs.cpio \
-kernel out/ppc/arch/powerpc/boot/zImage \
-m 128m \
-nodefaults \
-serial mon:stdio
qemu-system-ppc: could not load kernel 'out/ppc/arch/powerpc/boot/zImage'

$ ls out/ppc/arch/powerpc/boot/zImage
out/ppc/arch/powerpc/boot/zImage

Is this expected? Is there some other config or machine that we should
be testing instead?

Cheers,
Nathan