* [PATCH V2] ARM: mach-bcm: add ARM_ERRATA_775420
@ 2014-04-18 17:13 Scott Branden
2014-04-25 13:58 ` Matt Porter
0 siblings, 1 reply; 2+ messages in thread
From: Scott Branden @ 2014-04-18 17:13 UTC (permalink / raw)
To: linux-arm-kernel
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 <sbranden@broadcom.com>
Tested-by: Markus Mayer <markus.mayer@linaro.org>
Reviewed-by: Markus Mayer <markus.mayer@linaro.org>
Reviewed-by: Alex Elder <elder@linaro.org>
Acked-by: Matt Porter <mporter@linaro.org>
---
arch/arm/mach-bcm/Kconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm/mach-bcm/Kconfig b/arch/arm/mach-bcm/Kconfig
index 49c914c..9ef7f65 100644
--- a/arch/arm/mach-bcm/Kconfig
+++ b/arch/arm/mach-bcm/Kconfig
@@ -15,6 +15,7 @@ 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
--
1.7.9.5
^ permalink raw reply related [flat|nested] 2+ messages in thread
* [PATCH V2] ARM: mach-bcm: add ARM_ERRATA_775420
2014-04-18 17:13 [PATCH V2] ARM: mach-bcm: add ARM_ERRATA_775420 Scott Branden
@ 2014-04-25 13:58 ` Matt Porter
0 siblings, 0 replies; 2+ messages in thread
From: Matt Porter @ 2014-04-25 13:58 UTC (permalink / raw)
To: linux-arm-kernel
On Fri, Apr 18, 2014 at 10:13:20AM -0700, Scott Branden wrote:
> 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.
Applied to mach-bcm for-3.16/soc
Thanks,
Matt
> Signed-off-by: Scott Branden <sbranden@broadcom.com>
> Tested-by: Markus Mayer <markus.mayer@linaro.org>
> Reviewed-by: Markus Mayer <markus.mayer@linaro.org>
> Reviewed-by: Alex Elder <elder@linaro.org>
> Acked-by: Matt Porter <mporter@linaro.org>
> ---
> arch/arm/mach-bcm/Kconfig | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/arch/arm/mach-bcm/Kconfig b/arch/arm/mach-bcm/Kconfig
> index 49c914c..9ef7f65 100644
> --- a/arch/arm/mach-bcm/Kconfig
> +++ b/arch/arm/mach-bcm/Kconfig
> @@ -15,6 +15,7 @@ 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
> --
> 1.7.9.5
>
^ permalink raw reply [flat|nested] 2+ messages in thread
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