fix(errata): workaround for Cortex-A78C erratum 2395411
Cortex-A78C erratum 2395411 is a Cat B erratum that affects
revisions r0p1 and r0p2, and is currently open. The workaround
is to set CPUACTLR2_EL1[40] to 1, which will disable folding
of demand requests into older prefetches with L2 miss requests
outstanding.
SDEN can be found here:
https://developer.arm.com/documentation/SDEN2004089/latest
Signed-off-by: Akram Ahmad <Akram.Ahmad@arm.com>
Change-Id: I4f0fb278ac20a2eb4dd7e4efd1b1246dd85e48c4
diff --git a/lib/cpus/cpu-ops.mk b/lib/cpus/cpu-ops.mk
index b114824..088e885 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 2395411 workaround during reset. This erratum applies
+# to revisions r0p1 and r0p2 of the A78C cpu. It is still open.
+ERRATA_A78C_2395411 ?=0
+
# Flag to apply erratum 1821534 workaround during reset. This erratum applies
# to revisions r0p0 - r1p0 of the X1 cpu and fixed in r1p1.
ERRATA_X1_1821534 ?=0
@@ -939,6 +943,10 @@
$(eval $(call assert_boolean,ERRATA_A78C_2242638))
$(eval $(call add_define,ERRATA_A78C_2242638))
+# Process ERRATA_A78C_2395411 flag
+$(eval $(call assert_boolean,ERRATA_A78C_2395411))
+$(eval $(call add_define,ERRATA_A78C_2395411))
+
# Process ERRATA_X1_1821534 flag
$(eval $(call assert_boolean,ERRATA_X1_1821534))
$(eval $(call add_define,ERRATA_X1_1821534))