commit 65f8394ccf25af95c387134bb1e47f9d19d775c6
author Mithun Maragiri <mmaragiri@nvidia.com> Fri Jul 20 14:41:33 2018 -0700
committer Varun Wadekar <vwadekar@nvidia.com> Mon Mar 09 15:25:15 2020 -0700
tree 1f579dd137f22880928ee2d39920a1b0f71fa527
parent f74639ef8adbceea0cca41ac45b52cf2e0149085

Tegra210: disable ERRATA_A57_829520

ERRATA_A57_829520 disables "indirect branch prediction" for
EL1 on cpu reset, leading to 15% drop in CPU performance
with coremark benchmarks.

Tegra210 already has a hardware fix for ARM BUG#829520,so
this errata is not needed.

This patch disables the errata to get increased performance
numbers.

Change-Id: I0b42e8badd19a8101f6a55d80eb2d953597d3c20
Signed-off-by: Mithun Maragiri <mmaragiri@nvidia.com>

plat/nvidia/tegra/soc/t210/platform_t210.mk

diff --git a/plat/nvidia/tegra/soc/t210/platform_t210.mk b/plat/nvidia/tegra/soc/t210/platform_t210.mk
index 0d27bcd..ba827a0 100644
--- a/plat/nvidia/tegra/soc/t210/platform_t210.mk
+++ b/plat/nvidia/tegra/soc/t210/platform_t210.mk
@@ -46,7 +46,6 @@
 ERRATA_A57_826974		:=	1
 ERRATA_A57_826977		:=	1
 ERRATA_A57_828024		:=	1
-ERRATA_A57_829520		:=	1
 ERRATA_A57_833471		:=	1
 
 # Enable workarounds for selected Cortex-A53 erratas.