diff --git a/firmware/target/arm/as3525/system-as3525.c b/firmware/target/arm/as3525/system-as3525.c
index 41cc54301b..74e4f2bc7b 100644
--- a/firmware/target/arm/as3525/system-as3525.c
+++ b/firmware/target/arm/as3525/system-as3525.c
@@ -262,13 +262,15 @@ void system_init(void)
         "mcr p15, 0, r0, c1, c0   \n"
         : : : "r0" );
 
-    CGU_PLLASUP = 0;        /* enable PLLA */
+    CGU_COUNTA = 0xff;
     CGU_PLLA = AS3525_PLLA_SETTING;
+    CGU_PLLASUP = 0;        /* enable PLLA */
     while(!(CGU_INTCTRL & (1<<0)));           /* wait until PLLA is locked */
     
 #if (AS3525_MCLK_SEL == AS3525_CLK_PLLB)
-    CGU_PLLBSUP = 0;        /* enable PLLB */
+    CGU_COUNTB = 0xff;
     CGU_PLLB = AS3525_PLLB_SETTING;
+    CGU_PLLBSUP = 0;        /* enable PLLB */
     while(!(CGU_INTCTRL & (1<<1)));           /* wait until PLLB is locked */
 #endif