diff --git a/src/soc/intel/broadwell/bootblock/cpu.c b/src/soc/intel/broadwell/bootblock/cpu.c
index 7508bc2279..2f1ac51981 100644
--- a/src/soc/intel/broadwell/bootblock/cpu.c
+++ b/src/soc/intel/broadwell/bootblock/cpu.c
@@ -41,7 +41,6 @@ static void enable_rom_caching(void)
 	msr_t msr;
 
 	disable_cache();
-	/* Why only top 4MiB ? */
 	set_var_mtrr(1, CACHE_ROM_BASE, CACHE_ROM_SIZE, MTRR_TYPE_WRPROT);
 	enable_cache();