diff --git a/components/soc/esp32h4/include/soc/Kconfig.soc_caps.in b/components/soc/esp32h4/include/soc/Kconfig.soc_caps.in
index 570e11b5fd9..5068c4633b8 100644
--- a/components/soc/esp32h4/include/soc/Kconfig.soc_caps.in
+++ b/components/soc/esp32h4/include/soc/Kconfig.soc_caps.in
@@ -1006,3 +1006,7 @@ config SOC_RCC_IS_INDEPENDENT
 config SOC_USB_OTG_PERIPH_NUM
     int
     default 1
+
+config SOC_USB_FSLS_PHY_NUM
+    int
+    default 1
diff --git a/components/soc/esp32h4/include/soc/soc_caps.h b/components/soc/esp32h4/include/soc/soc_caps.h
index 9739faf559d..1c1fab002c6 100644
--- a/components/soc/esp32h4/include/soc/soc_caps.h
+++ b/components/soc/esp32h4/include/soc/soc_caps.h
@@ -539,3 +539,4 @@
 
 /*-------------------------- USB CAPS ----------------------------------------*/
 #define SOC_USB_OTG_PERIPH_NUM          (1U)
+#define SOC_USB_FSLS_PHY_NUM            (1U)
diff --git a/components/soc/esp32p4/include/soc/Kconfig.soc_caps.in b/components/soc/esp32p4/include/soc/Kconfig.soc_caps.in
index bdac2e746c8..bbacbf19521 100644
--- a/components/soc/esp32p4/include/soc/Kconfig.soc_caps.in
+++ b/components/soc/esp32p4/include/soc/Kconfig.soc_caps.in
@@ -1163,6 +1163,10 @@ 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 e4543793f28..a8070619717 100644
--- a/components/soc/esp32p4/include/soc/soc_caps.h
+++ b/components/soc/esp32p4/include/soc/soc_caps.h
@@ -430,6 +430,7 @@
 
 // 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 14049a85c8c..51917176e30 100644
--- a/components/soc/esp32s2/include/soc/Kconfig.soc_caps.in
+++ b/components/soc/esp32s2/include/soc/Kconfig.soc_caps.in
@@ -747,6 +747,10 @@ 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 e454af050fe..9f6955a2afe 100644
--- a/components/soc/esp32s2/include/soc/soc_caps.h
+++ b/components/soc/esp32s2/include/soc/soc_caps.h
@@ -341,6 +341,7 @@
 
 /*-------------------------- 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 7b500cf80e8..33fbcdda60c 100644
--- a/components/soc/esp32s3/include/soc/Kconfig.soc_caps.in
+++ b/components/soc/esp32s3/include/soc/Kconfig.soc_caps.in
@@ -867,6 +867,10 @@ 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 261987e68f1..fb6c1b015f0 100644
--- a/components/soc/esp32s3/include/soc/soc_caps.h
+++ b/components/soc/esp32s3/include/soc/soc_caps.h
@@ -360,6 +360,7 @@
 
 /*-------------------------- 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,