[PATCH v2 0/9] ARM: multi-platform kconfig cleanup and mach-virt removal
From: arnd@arndb.de (Arnd Bergmann)
Date: 2014-02-12 13:26:41
On Tuesday 11 February 2014, Rob Herring wrote:
From: Rob Herring <robh@kernel.org> This series removes common kconfig options required by multi-platform builds out of individual platforms as they are redundant. Patches 2 and 3 make SMP and CACHE_L2X0 config options visible on MULTI_V7 builds as most platforms enable these options and all platforms can run with them enabled.
Overall looks pretty good, let's wait for a few more Acks or a possible Nak and then put it into arm-soc. You can add my 'Acked-by' to all patches if you like.
The previous version [1] was mainly a discussion about v6 vs. v6K. Several platforms have this wrong and incorrectly select v6 when the more optimal v6K option could be used. After more research, my memory about i.MX31 was wrong and it does need to remain v6.
Just curious: do you have more information on this? Are all i.MX31 ARMv6 and all i.MX35 v6k as the current Kconfig claims, or is it more complicated?
Finally, patch 8 removes mach-virt as it is no longer needed. The core ARM code can handle all the necessary initialization and mach-virt is left as a kconfig option. Although not really related to this series, it would otherwise conflict with it.
Makes sense. It's still a cleanup, so you could send it as a separate patch to be applied on-top of the pull rather than the same pull request, although the difference is really marginal. You are probably right in leaving out the non-multiplatform platforms, but maybe we can figure out whether they should be changed as well, especially as some of them are going to become multiplatform-enabled in the future: * ARCH_S5P64X0 should be changed, it's next on the list * DaVinci/TNETV107X looks rather broken, I wonder if we should just remove it entirely rather than fix it. I have a series to fix all 'randconfig' build bugs locally and there were a lot of them for TNETV107X, and I doubt fixing the build will actually give you a booting kernel. * ARCH_MSM7X00A should just be changed, although probably nobody really cares. * integrator and realview apparently allow both CPU_V6 and CPU_V6K to be manually selected. Is that actually the correct behavior in that both kinds of core tiles exist? Arnd