diff --git a/arch/risc-v/src/fe310/fe310_clockconfig.c b/arch/risc-v/src/fe310/fe310_clockconfig.c
index cb9606fb322..356884654c4 100644
--- a/arch/risc-v/src/fe310/fe310_clockconfig.c
+++ b/arch/risc-v/src/fe310/fe310_clockconfig.c
@@ -56,8 +56,8 @@
 #define EXT_OSC 16000000
 
 #define PLL_64M  (1 + (31 << 4) + (3 << 10)) /* R:2 F:64 Q:8 8M/512M/64M  */
-#define PLL_128M (1 + (31 << 4) + (2 << 10)) /* R:2 F:64 Q:8 8M/512M/128M */
-#define PLL_256M (1 + (31 << 4) + (1 << 10)) /* R:2 F:64 Q:8 8M/512M/256M */
+#define PLL_128M (1 + (31 << 4) + (2 << 10)) /* R:2 F:64 Q:4 8M/512M/128M */
+#define PLL_256M (1 + (31 << 4) + (1 << 10)) /* R:2 F:64 Q:2 8M/512M/256M */
 
 /****************************************************************************
  * Public Functions