diff --git a/soc/runtime/rtiocrg.c b/soc/runtime/rtiocrg.c
index aaafe95e9..255f2a308 100644
--- a/soc/runtime/rtiocrg.c
+++ b/soc/runtime/rtiocrg.c
@@ -10,7 +10,9 @@ void rtiocrg_init(void)
     char b;
     int clk;
 
+#ifdef CSR_RTIO_CRG_PLL_RESET_ADDR
     rtio_crg_pll_reset_write(0);
+#endif
     b = 'i';
     clk = 0;
     fs_read("startup_clock", &b, 1, NULL);
@@ -31,7 +33,11 @@ void rtiocrg_init(void)
 
 int rtiocrg_check(void)
 {
+#ifdef CSR_RTIO_CRG_PLL_RESET_ADDR
     return rtio_crg_pll_locked_read();
+#else
+    return 1;
+#endif
 }
 
 int rtiocrg_switch_clock(int clk)
@@ -40,16 +46,22 @@ int rtiocrg_switch_clock(int clk)
 
     current_clk = rtio_crg_clock_sel_read();
     if(clk == current_clk) {
+#ifdef CSR_RTIO_CRG_PLL_RESET_ADDR
         busywait_us(150);
         if(!rtio_crg_pll_locked_read())
             return 0;
+#endif
         return 1;
     }
+#ifdef CSR_RTIO_CRG_PLL_RESET_ADDR
     rtio_crg_pll_reset_write(1);
+#endif
     rtio_crg_clock_sel_write(clk);
+#ifdef CSR_RTIO_CRG_PLL_RESET_ADDR
     rtio_crg_pll_reset_write(0);
     busywait_us(150);
     if(!rtio_crg_pll_locked_read())
         return 0;
+#endif
     return 1;
 }