fix(errata): workaround for Cortex-A510 erratum 2347730
Cortex-A510 erratum 2347730 is a Cat B erratum that affects
revisions r0p0, r0p1, r0p2, r0p3, r1p0 and r1p1. It is
fixed in r1p2. The workaround is to set CPUACTLR_EL1[17]
to 1, which will disable specific microarchitectural clock
gating behaviour.
SDEN can be found here:
https://developer.arm.com/documentation/SDEN1873351/latest
https://developer.arm.com/documentation/SDEN1873361/latest
Signed-off-by: Akram Ahmad <Akram.Ahmad@arm.com>
Change-Id: I115386284c2d91bd61515142f971e2e72de43e68
diff --git a/lib/cpus/cpu-ops.mk b/lib/cpus/cpu-ops.mk
index 9f1064a..36832cd 100644
--- a/lib/cpus/cpu-ops.mk
+++ b/lib/cpus/cpu-ops.mk
@@ -653,6 +653,11 @@
# to revisions r0p0, r0p1, r0p2, r0p3 and r1p0, and is fixed in r1p1.
ERRATA_A510_2172148 ?=0
+# Flag to apply erratum 2347730 workaround during reset. This erratum applies
+# to revisions r0p0, r0p1, r0p2, r0p3, r1p0 and r1p1 of the Cortex-A510 CPU,
+# and is fixed in r1p2.
+ERRATA_A510_2347730 ?=0
+
# Flag to apply erratum 2371937 workaround during reset. This erratum applies
# to revisions r0p0, r0p1, r0p2, r0p3, r1p0, and r1p1. It is fixed in r1p2.
ERRATA_A510_2371937 ?=0
@@ -1235,6 +1240,10 @@
$(eval $(call assert_boolean,ERRATA_A510_2172148))
$(eval $(call add_define,ERRATA_A510_2172148))
+# Process ERRATA_A510_2347730 flag
+$(eval $(call assert_boolean,ERRATA_A510_2347730))
+$(eval $(call add_define,ERRATA_A510_2347730))
+
# Process ERRATA_A510_2371937 flag
$(eval $(call assert_boolean,ERRATA_A510_2371937))
$(eval $(call add_define,ERRATA_A510_2371937))