From: Sebastian Andrzej Siewior Date: Wed, 6 Apr 2016 15:39:07 +0000 (+0200) Subject: ARM: imx: always use TWD on IMX6Q X-Git-Tag: v4.7-rc1~138^2~4^2 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=acc98009b87a811f9f815650274a1044474cd167;p=karo-tx-linux.git ARM: imx: always use TWD on IMX6Q There is no reason to limit the TWD to be used on SMP kernels only if the hardware has it available. On Wandboard i.MX6SOLO, running PREEMPT-RT and cyclictest I see as max immediately after start in idle: UP : ~90us SMP: ~50us UP + TWD: ~20us. Based on this numbers I prefer the TWD over the slightly slower MXC timer. Signed-off-by: Sebastian Andrzej Siewior Signed-off-by: Shawn Guo --- diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig index 8973fae25436..dd905b9602a0 100644 --- a/arch/arm/mach-imx/Kconfig +++ b/arch/arm/mach-imx/Kconfig @@ -526,7 +526,7 @@ config SOC_IMX6Q bool "i.MX6 Quad/DualLite support" select ARM_ERRATA_764369 if SMP select HAVE_ARM_SCU if SMP - select HAVE_ARM_TWD if SMP + select HAVE_ARM_TWD select PCI_DOMAINS if PCI select PINCTRL_IMX6Q select SOC_IMX6