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-rw-r--r--arch/arm/mach-zynqmp/mp.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/arm/mach-zynqmp/mp.c b/arch/arm/mach-zynqmp/mp.c
index 7a12f4b..b06c867 100644
--- a/arch/arm/mach-zynqmp/mp.c
+++ b/arch/arm/mach-zynqmp/mp.c
@@ -326,6 +326,10 @@ int cpu_release(u32 nr, int argc, char *const argv[])
flush_dcache_all();
if (!strncmp(argv[1], "lockstep", 8)) {
+ if (nr != ZYNQMP_CORE_RPU0) {
+ printf("Lockstep mode should run on ZYNQMP_CORE_RPU0\n");
+ return 1;
+ }
printf("R5 lockstep mode\n");
set_r5_reset(nr, LOCK);
set_r5_tcm_mode(LOCK);