diff --git a/components/soc/esp32p4/include/soc/Kconfig.soc_caps.in b/components/soc/esp32p4/include/soc/Kconfig.soc_caps.in
index 4c7c9af7849..468f0239696 100644
--- a/components/soc/esp32p4/include/soc/Kconfig.soc_caps.in
+++ b/components/soc/esp32p4/include/soc/Kconfig.soc_caps.in
@@ -1135,6 +1135,10 @@ config SOC_USB_OTG_PERIPH_NUM
     int
     default 2
 
+config SOC_USB_FSLS_PHY_NUM
+    int
+    default 1
+
 config SOC_USB_UTMI_PHY_NUM
     int
     default 1
diff --git a/components/soc/esp32p4/include/soc/soc_caps.h b/components/soc/esp32p4/include/soc/soc_caps.h
index 41c406ef90c..7c1ac3b929a 100644
--- a/components/soc/esp32p4/include/soc/soc_caps.h
+++ b/components/soc/esp32p4/include/soc/soc_caps.h
@@ -429,6 +429,7 @@
 
 // USB OTG Caps
 #define SOC_USB_OTG_PERIPH_NUM          (2U)
+#define SOC_USB_FSLS_PHY_NUM            (1U)
 
 // USB PHY Caps
 #define SOC_USB_UTMI_PHY_NUM            (1U)
diff --git a/components/soc/esp32s2/include/soc/Kconfig.soc_caps.in b/components/soc/esp32s2/include/soc/Kconfig.soc_caps.in
index 122c369f484..b641cfd1947 100644
--- a/components/soc/esp32s2/include/soc/Kconfig.soc_caps.in
+++ b/components/soc/esp32s2/include/soc/Kconfig.soc_caps.in
@@ -907,6 +907,10 @@ config SOC_USB_OTG_PERIPH_NUM
     int
     default 1
 
+config SOC_USB_FSLS_PHY_NUM
+    int
+    default 1
+
 config SOC_SHA_DMA_MAX_BUFFER_SIZE
     int
     default 3968
diff --git a/components/soc/esp32s2/include/soc/soc_caps.h b/components/soc/esp32s2/include/soc/soc_caps.h
index 29f35cdafca..0bddf4df5c0 100644
--- a/components/soc/esp32s2/include/soc/soc_caps.h
+++ b/components/soc/esp32s2/include/soc/soc_caps.h
@@ -381,6 +381,7 @@
 
 /*-------------------------- USB CAPS ----------------------------------------*/
 #define SOC_USB_OTG_PERIPH_NUM          (1U)
+#define SOC_USB_FSLS_PHY_NUM            (1U)
 
 /*--------------------------- SHA CAPS ---------------------------------------*/
 /* Max amount of bytes in a single DMA operation is 4095,
diff --git a/components/soc/esp32s3/include/soc/Kconfig.soc_caps.in b/components/soc/esp32s3/include/soc/Kconfig.soc_caps.in
index fc1ac552235..f35780aa9ac 100644
--- a/components/soc/esp32s3/include/soc/Kconfig.soc_caps.in
+++ b/components/soc/esp32s3/include/soc/Kconfig.soc_caps.in
@@ -1103,6 +1103,10 @@ config SOC_USB_OTG_PERIPH_NUM
     int
     default 1
 
+config SOC_USB_FSLS_PHY_NUM
+    int
+    default 1
+
 config SOC_SHA_DMA_MAX_BUFFER_SIZE
     int
     default 3968
diff --git a/components/soc/esp32s3/include/soc/soc_caps.h b/components/soc/esp32s3/include/soc/soc_caps.h
index e0840e331c3..f5e72423f6c 100644
--- a/components/soc/esp32s3/include/soc/soc_caps.h
+++ b/components/soc/esp32s3/include/soc/soc_caps.h
@@ -428,6 +428,7 @@
 
 /*-------------------------- USB CAPS ----------------------------------------*/
 #define SOC_USB_OTG_PERIPH_NUM          (1U)
+#define SOC_USB_FSLS_PHY_NUM            (1U)
 
 /*--------------------------- SHA CAPS ---------------------------------------*/
 /* Max amount of bytes in a single DMA operation is 4095,