fix(cpus): workaround for Cortex-A78C erratum 2376749
Cortex-A78C erratum 2376749 is a Cat B erratum that applies
to revisions r0p1 and r0p2 of the A78C and is currently open.
The workaround is to set CPUACTLR2_EL1[0] to 1 to force
PLDW/PFRM ST to behave like PLD/PRFM LD and not cause
invalidations to other PE caches.
SDEN can be found here:
https://developer.arm.com/documentation/SDEN2004089/latest
Signed-off-by: Akram Ahmad <Akram.Ahmad@arm.com>
Change-Id: I3b29f4b7f167bf499d5d11ffef91a94861bd1383
diff --git a/lib/cpus/cpu-ops.mk b/lib/cpus/cpu-ops.mk
index 36832cd..f8e2cbf 100644
--- a/lib/cpus/cpu-ops.mk
+++ b/lib/cpus/cpu-ops.mk
@@ -369,6 +369,10 @@
# to revisions r0p1 and r0p2 of the A78C cpu. It is still open.
ERRATA_A78C_2242638 ?=0
+# Flag to apply erratum 2376749 workaround during reset. This erratum applies
+# to revisions r0p1 and r0p2 of the A78C cpu. It is still open.
+ERRATA_A78C_2376749 ?=0
+
# Flag to apply erratum 2395411 workaround during reset. This erratum applies
# to revisions r0p1 and r0p2 of the A78C cpu. It is still open.
ERRATA_A78C_2395411 ?=0
@@ -964,6 +968,10 @@
$(eval $(call assert_boolean,ERRATA_A78C_2242638))
$(eval $(call add_define,ERRATA_A78C_2242638))
+# Process ERRATA_A78C_2376749 flag
+$(eval $(call assert_boolean,ERRATA_A78C_2376749))
+$(eval $(call add_define,ERRATA_A78C_2376749))
+
# Process ERRATA_A78C_2395411 flag
$(eval $(call assert_boolean,ERRATA_A78C_2395411))
$(eval $(call add_define,ERRATA_A78C_2395411))