From bdf761329664ef09bdd33e659de7fa25f6970112 Mon Sep 17 00:00:00 2001
From: Damien George <damien@micropython.org>
Date: Mon, 1 Dec 2025 10:46:43 +1100
Subject: [PATCH] esp32/mphalport: Enable D-cache flushing on P4 for native
 code.

This is necessary to get native code running on the ESP32-P4.

Signed-off-by: Damien George <damien@micropython.org>
---
 ports/esp32/esp32_common.cmake | 1 +
 ports/esp32/mphalport.h        | 6 ++++++
 2 files changed, 7 insertions(+)

diff --git a/ports/esp32/esp32_common.cmake b/ports/esp32/esp32_common.cmake
index a52498a7fe..e3b1b81cae 100644
--- a/ports/esp32/esp32_common.cmake
+++ b/ports/esp32/esp32_common.cmake
@@ -166,6 +166,7 @@ list(APPEND IDF_COMPONENTS
     driver
     esp_adc
     esp_app_format
+    esp_mm
     esp_common
     esp_driver_touch_sens
     esp_eth
diff --git a/ports/esp32/mphalport.h b/ports/esp32/mphalport.h
index d779b6e66c..a2b11520a5 100644
--- a/ports/esp32/mphalport.h
+++ b/ports/esp32/mphalport.h
@@ -36,6 +36,7 @@
 #include "freertos/task.h"
 
 #include "driver/spi_master.h"
+#include "esp_cache.h"
 #include "soc/gpio_reg.h"
 
 #define MICROPY_PLATFORM_VERSION "IDF" IDF_VER
@@ -51,6 +52,11 @@
 #define MP_TASK_COREID (1)
 #endif
 
+#if CONFIG_IDF_TARGET_ESP32P4
+#define MP_HAL_CLEAN_DCACHE(data, len) \
+    esp_cache_msync((void *)(data), (len), ESP_CACHE_MSYNC_FLAG_UNALIGNED | ESP_CACHE_MSYNC_FLAG_DIR_C2M)
+#endif
+
 extern TaskHandle_t mp_main_task_handle;
 
 extern ringbuf_t stdin_ringbuf;