From: Scott Branden Date: Fri, 18 Apr 2014 17:13:20 +0000 (-0700) Subject: ARM: mach-bcm: add ARM_ERRATA_775420 X-Git-Tag: firefly_0821_release~176^2~3465^2~47^2~16^2~1 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=ffc1086a5512c9b6b3dacc2648cc8ba7fa530cb9;p=firefly-linux-kernel-4.4.55.git ARM: mach-bcm: add ARM_ERRATA_775420 ARM_ERRATA_775420 needs to be enabled. A data cache maintenance operation which aborts, followed by an ISB, without any DSB in-between, might lead to deadlock. Affects: bug present in Cortex-A9 r3p0 and earlier. Fixed in r4p0. Cortex-A9 r3p0 is used in a multitude of Broadcom parts including the bcm21664, bcm281xx, 5301x families of devices. Signed-off-by: Scott Branden Tested-by: Markus Mayer Reviewed-by: Markus Mayer Reviewed-by: Alex Elder Signed-off-by: Matt Porter --- diff --git a/arch/arm/mach-bcm/Kconfig b/arch/arm/mach-bcm/Kconfig index 7f6ed6c3d367..daead394b75c 100644 --- a/arch/arm/mach-bcm/Kconfig +++ b/arch/arm/mach-bcm/Kconfig @@ -12,6 +12,7 @@ config ARCH_BCM_MOBILE select ARCH_REQUIRE_GPIOLIB select ARM_ERRATA_754322 select ARM_ERRATA_764369 if SMP + select ARM_ERRATA_775420 select ARM_GIC select GPIO_BCM_KONA select TICK_ONESHOT