diff --git a/components/soc/esp32p4/include/soc/Kconfig.soc_caps.in b/components/soc/esp32p4/include/soc/Kconfig.soc_caps.in
index ee43361272b..17e53307aeb 100644
--- a/components/soc/esp32p4/include/soc/Kconfig.soc_caps.in
+++ b/components/soc/esp32p4/include/soc/Kconfig.soc_caps.in
@@ -1383,6 +1383,10 @@ 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 b42233c1731..6611f478f07 100644
--- a/components/soc/esp32p4/include/soc/soc_caps.h
+++ b/components/soc/esp32p4/include/soc/soc_caps.h
@@ -489,6 +489,7 @@
 
 // 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 23e05ac2ada..86a19a5bad6 100644
--- a/components/soc/esp32s2/include/soc/Kconfig.soc_caps.in
+++ b/components/soc/esp32s2/include/soc/Kconfig.soc_caps.in
@@ -923,6 +923,10 @@ 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 fb79ae4d913..d7df4405b9c 100644
--- a/components/soc/esp32s2/include/soc/soc_caps.h
+++ b/components/soc/esp32s2/include/soc/soc_caps.h
@@ -385,6 +385,7 @@
 
 /*-------------------------- 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 27a5f07ba63..13ea9232926 100644
--- a/components/soc/esp32s3/include/soc/Kconfig.soc_caps.in
+++ b/components/soc/esp32s3/include/soc/Kconfig.soc_caps.in
@@ -1131,6 +1131,10 @@ 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 450f7a83f90..e7ad4b14a17 100644
--- a/components/soc/esp32s3/include/soc/soc_caps.h
+++ b/components/soc/esp32s3/include/soc/soc_caps.h
@@ -437,6 +437,7 @@
 
 /*-------------------------- 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,