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Fri, 20 Sep 2019 01:53:25 -0400 (EDT) X-Mailer: MessagingEngine.com Webmail Interface User-Agent: Cyrus-JMAP/3.1.7-238-g170a812-fmstable-20190913v1 Mime-Version: 1.0 Message-Id: In-Reply-To: <20190919142654.1578823-1-arnd@arndb.de> References: <20190919142654.1578823-1-arnd@arndb.de> Date: Fri, 20 Sep 2019 15:24:01 +0930 From: "Andrew Jeffery" To: "Arnd Bergmann" , "Joel Stanley" Subject: Re: [PATCH] ARM: aspeed: ast2500 is ARMv6K X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190919_225330_694097_ABEDCDA4 X-CRM114-Status: GOOD ( 12.92 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-aspeed@lists.ozlabs.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Thu, 19 Sep 2019, at 23:56, Arnd Bergmann wrote: > Linux supports both the original ARMv6 level (early ARM1136) and ARMv6K > (later ARM1136, ARM1176 and ARM11mpcore). > > ast2500 falls into the second categoy, being based on arm1176jzf-s. > This is enabled by default when using ARCH_MULTI_V6, so we should > not 'select CPU_V6'. > > Removing this will lead to more efficient use of atomic instructions. > > Signed-off-by: Arnd Bergmann > --- > arch/arm/mach-aspeed/Kconfig | 1 - > 1 file changed, 1 deletion(-) > > diff --git a/arch/arm/mach-aspeed/Kconfig b/arch/arm/mach-aspeed/Kconfig > index a293137f5814..163931a03136 100644 > --- a/arch/arm/mach-aspeed/Kconfig > +++ b/arch/arm/mach-aspeed/Kconfig > @@ -26,7 +26,6 @@ config MACH_ASPEED_G4 > config MACH_ASPEED_G5 > bool "Aspeed SoC 5th Generation" > depends on ARCH_MULTI_V6 > - select CPU_V6 > select PINCTRL_ASPEED_G5 if !CC_IS_CLANG Unrelated, but I'm intrigued by this. Looks like I should try compile it with clang and fix the fallout. Andrew _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel