diff --git a/components/esp_phy/src/phy_override.c b/components/esp_phy/src/phy_override.c
index add05e5ac8..5c99078ae1 100644
--- a/components/esp_phy/src/phy_override.c
+++ b/components/esp_phy/src/phy_override.c
@@ -39,12 +39,12 @@ void set_xpd_sar(bool en)
 }
 
 //add spinlock protection
-void phy_i2c_enter_critical(void)
+IRAM_ATTR void phy_i2c_enter_critical(void)
 {
     regi2c_enter_critical();
 }
 
-void phy_i2c_exit_critical(void)
+IRAM_ATTR void phy_i2c_exit_critical(void)
 {
     regi2c_exit_critical();
 }