fix(errata): workaround for Cortex-A710 erratum 2267065
Cortex-A710 erratum 2267065 is a Cat B erratum that applies to
revisions r0p0, r1p0 and r2p0 of the CPU. It is fixed in r2p1.
The workaround is to set CPUACTLR_EL1[22] to 1'b1. Setting
CPUACTLR_EL1[22] will cause the CFP instruction to invalidate
all branch predictor resources regardless of context.
SDEN can be found here:
https://developer.arm.com/documentation/SDEN1775101/latest
Signed-off-by: Bipin Ravi <bipin.ravi@arm.com>
Change-Id: Ia9085aaf9b2b6a2b25d03ab36bd3774839fac9aa
diff --git a/include/lib/cpus/aarch64/cortex_a710.h b/include/lib/cpus/aarch64/cortex_a710.h
index d2bc146..b258f50 100644
--- a/include/lib/cpus/aarch64/cortex_a710.h
+++ b/include/lib/cpus/aarch64/cortex_a710.h
@@ -26,6 +26,7 @@
******************************************************************************/
#define CORTEX_A710_CPUACTLR_EL1 S3_0_C15_C1_0
#define CORTEX_A710_CPUACTLR_EL1_BIT_46 (ULL(1) << 46)
+#define CORTEX_A710_CPUACTLR_EL1_BIT_22 (ULL(1) << 22)
/*******************************************************************************
* CPU Auxiliary Control register specific definitions.