--- a/arch/mips/alchemy/common/clock.c
+++ b/arch/mips/alchemy/common/clock.c
@@ -128,6 +128,8 @@
t = 396000000;
else {
t = alchemy_rdsys(AU1000_SYS_CPUPLL) & 0x7f;
+ if (alchemy_get_cputype() != ALCHEMY_CPU_AU1300)
+ t &= 0x3f;
t *= parent_rate;
}