From b45c48a7c30734272371fede01e96f499a314664 Mon Sep 17 00:00:00 2001 From: Nishanth Menon Date: Mon, 9 Mar 2015 17:12:00 -0500 Subject: ARM: Introduce erratum workaround for 454179 454179: Stale prediction may inhibit target address misprediction on next predicted taken branch Impacts: Every Cortex-A8 processors with revision lower than r2p1 Work around: Set IBE and disable branch size mispredict to 1 Also provide a hook for SoC specific handling to take place if needed. Based on ARM errata Document revision 20.0 (13 Nov 2010) Signed-off-by: Nishanth Menon Tested-by: Matt Porter Reviewed-by: Tom Rini --- README | 1 + 1 file changed, 1 insertion(+) (limited to 'README') diff --git a/README b/README index e918af73f9..c3226386cf 100644 --- a/README +++ b/README @@ -693,6 +693,7 @@ The following options need to be configured: NOTE: The following can be machine specific errata. These do have ability to provide rudimentary version and machine specific checks, but expect no product checks. + CONFIG_ARM_ERRATA_454179 CONFIG_ARM_ERRATA_798870 - Tegra SoC options: -- cgit v1.2.3