From mboxrd@z Thu Jan 1 00:00:00 1970 From: Waldemar Brodkorb Date: Fri, 19 Aug 2016 15:32:22 +0200 Subject: [Buildroot] [PATCH 1/1] arch/arm: Add Cortex-a53 CPU In-Reply-To: <20160819100320.1d2609bd@free-electrons.com> References: <1471565224-15625-1-git-send-email-flatmax@flatmax.org> <20160819100320.1d2609bd@free-electrons.com> Message-ID: <20160819133222.GO22524@waldemar-brodkorb.de> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: buildroot@busybox.net Hi Thomas, Thomas Petazzoni wrote, > Hello, > > On Fri, 19 Aug 2016 10:07:04 +1000, Matt Flax wrote: > > Adds the Cortex-a53 CPU to the target architecture variant choice. This sets > > the toolchain to use cortex-a53 as the target. The effect is that various > > cortex-a53 tunings are enabled for the compilation of packages. > > > > Signed-off-by: Matt Flax > > The A53 is an ARM64 CPU, so it should rather be added to > Config.in.aarch64 (in which we don't yet have a CPU selection, but that > can be added). > > Or are you building a 32 bits ARM system for a Cortex-A53 ? In that > case, adding it to Config.in.arm would be OK, but it's a bit annoying > that we would have to duplicate many ARM CPUs between Config.in.arm and > Config.in.aarch64. The new rpi3 can be compiled with optimization for cortex-a53 in ARM 32 bit mode. The aarch64 port for rpi3 isn't complete. So this might be a use case. I fixed one issue in uCLibc-ng in the past to allow cortex-a53 optimized builds. best regards Waldemar