From 4b884d0f463ccf4b399b0eeb40d38635853f0ab4 Mon Sep 17 00:00:00 2001
From: armando <douyiwen@espressif.com>
Date: Thu, 22 Jan 2026 10:00:52 +0800
Subject: [PATCH] fix(kconfig): fixed default cpu freq issue on <rev3

---
 components/esp_system/port/soc/esp32p4/Kconfig.cpu | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/components/esp_system/port/soc/esp32p4/Kconfig.cpu b/components/esp_system/port/soc/esp32p4/Kconfig.cpu
index d88464cc99..3d7e7ba91c 100644
--- a/components/esp_system/port/soc/esp32p4/Kconfig.cpu
+++ b/components/esp_system/port/soc/esp32p4/Kconfig.cpu
@@ -1,3 +1,14 @@
+config ESP_FORCE_400MHZ_ON_REV_LESS_V3
+    bool "Force 400MHz on revision < 3.0 (EXPERIMENTAL)"
+    depends on ESP32P4_SELECTS_REV_LESS_V3
+    default n
+    help
+        Running at 400MHz on ESP32-P4 revision < 3.0 requires chips that have
+        passed additional qualification. Enable this option only if you have
+        confirmed with Espressif that your specific chips are qualified for
+        400MHz operation. Using unqualified chips at 400MHz may result in
+        instability or reduced reliability.
+
 choice ESP_DEFAULT_CPU_FREQ_MHZ
     prompt "CPU frequency"
     default ESP_DEFAULT_CPU_FREQ_MHZ_40 if IDF_ENV_FPGA || ESP_BRINGUP_BYPASS_CPU_CLK_SETTING
@@ -14,6 +25,7 @@ choice ESP_DEFAULT_CPU_FREQ_MHZ
         depends on ESP32P4_SELECTS_REV_LESS_V3
     config ESP_DEFAULT_CPU_FREQ_MHZ_400
         bool "400 MHz"
+        depends on !ESP32P4_SELECTS_REV_LESS_V3 || ESP_FORCE_400MHZ_ON_REV_LESS_V3
 endchoice
 
 config ESP_DEFAULT_CPU_FREQ_MHZ