fix(errata): workaround for Cortex-X2 erratum 2216384
Cortex-X2 erratum 2216384 is a Cat B erratum that applies to
revisions r0p0, r1p0 and r2p0 of CPU. It is fixed in r2p1.
The workaround is to set CPUACTLR5_EL1[17] to 1'b1 followed by
applying an instruction patching sequence.
SDEN can be found here:
https://developer.arm.com/documentation/SDEN1775100/latest
Signed-off-by: Bipin Ravi <bipin.ravi@arm.com>
Change-Id: I3c216161678887c06a28c59644e784e0c7d37bab
diff --git a/include/lib/cpus/aarch64/cortex_x2.h b/include/lib/cpus/aarch64/cortex_x2.h
index e1695cd..e3d0fa9 100644
--- a/include/lib/cpus/aarch64/cortex_x2.h
+++ b/include/lib/cpus/aarch64/cortex_x2.h
@@ -34,6 +34,7 @@
* CPU Auxiliary Control Register 5 definitions
******************************************************************************/
#define CORTEX_X2_CPUACTLR5_EL1 S3_0_C15_C8_0
+#define CORTEX_X2_CPUACTLR5_EL1_BIT_17 (ULL(1) << 17)
/*******************************************************************************
* CPU Implementation Specific Selected Instruction registers