Cortex-A57: Implement workaround for erratum 859972
Erratum 855972 applies to revision r1p3 or earlier Cortex-A57 CPUs. The
recommended workaround is to disable instruction prefetch.
Change-Id: I56eeac0b753eb1432bd940083372ad6f7e93b16a
Signed-off-by: Eleanor Bonnici <Eleanor.bonnici@arm.com>
Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>
diff --git a/include/lib/cpus/aarch32/cortex_a57.h b/include/lib/cpus/aarch32/cortex_a57.h
index d3ae5b9..3fac9c7 100644
--- a/include/lib/cpus/aarch32/cortex_a57.h
+++ b/include/lib/cpus/aarch32/cortex_a57.h
@@ -49,6 +49,7 @@
#define CORTEX_A57_CPUACTLR_NO_ALLOC_WBWA (ULL(1) << 49)
#define CORTEX_A57_CPUACTLR_DCC_AS_DCCI (ULL(1) << 44)
#define CORTEX_A57_CPUACTLR_FORCE_FPSCR_FLUSH (ULL(1) << 38)
+#define CORTEX_A57_CPUACTLR_DIS_INSTR_PREFETCH (ULL(1) << 32)
#define CORTEX_A57_CPUACTLR_DIS_STREAMING (ULL(3) << 27)
#define CORTEX_A57_CPUACTLR_DIS_L1_STREAMING (ULL(3) << 25)
#define CORTEX_A57_CPUACTLR_DIS_INDIRECT_PREDICTOR (ULL(1) << 4)