From fc3d558d479ec4a3a7a8118979b4bee92d4d2cfc Mon Sep 17 00:00:00 2001
From: Jimmy Hedman <jimmy.hedman@gmail.com>
Date: Wed, 5 Jul 2023 00:28:12 +0200
Subject: [PATCH] Initial debug component support for rp2040 (#5056)

---
 esphome/components/debug/__init__.py         |  1 -
 esphome/components/debug/debug_component.cpp | 13 ++++++++++++-
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/esphome/components/debug/__init__.py b/esphome/components/debug/__init__.py
index 9742b3b19e..1955b5d22c 100644
--- a/esphome/components/debug/__init__.py
+++ b/esphome/components/debug/__init__.py
@@ -38,7 +38,6 @@ CONFIG_SCHEMA = cv.All(
             ),
         }
     ).extend(cv.polling_component_schema("60s")),
-    cv.only_on(["esp32", "esp8266"]),
 )
 
 
diff --git a/esphome/components/debug/debug_component.cpp b/esphome/components/debug/debug_component.cpp
index 9b7e256147..8b6a97068b 100644
--- a/esphome/components/debug/debug_component.cpp
+++ b/esphome/components/debug/debug_component.cpp
@@ -22,8 +22,12 @@
 #endif  // USE_ESP32
 
 #ifdef USE_ARDUINO
+#ifdef USE_RP2040
+#include <Arduino.h>
+#else
 #include <Esp.h>
 #endif
+#endif
 
 namespace esphome {
 namespace debug {
@@ -35,6 +39,8 @@ static uint32_t get_free_heap() {
   return ESP.getFreeHeap();  // NOLINT(readability-static-accessed-through-instance)
 #elif defined(USE_ESP32)
   return heap_caps_get_free_size(MALLOC_CAP_INTERNAL);
+#elif defined(USE_RP2040)
+  return rp2040.getFreeHeap();
 #endif
 }
 
@@ -65,7 +71,7 @@ void DebugComponent::dump_config() {
   this->free_heap_ = get_free_heap();
   ESP_LOGD(TAG, "Free Heap Size: %" PRIu32 " bytes", this->free_heap_);
 
-#ifdef USE_ARDUINO
+#if defined(USE_ARDUINO) && !defined(USE_RP2040)
   const char *flash_mode;
   switch (ESP.getFlashChipMode()) {  // NOLINT(readability-static-accessed-through-instance)
     case FM_QIO:
@@ -274,6 +280,11 @@ void DebugComponent::dump_config() {
   reset_reason = ESP.getResetReason().c_str();
 #endif
 
+#ifdef USE_RP2040
+  ESP_LOGD(TAG, "CPU Frequency: %u", rp2040.f_cpu());
+  device_info += "CPU Frequency: " + to_string(rp2040.f_cpu());
+#endif  // USE_RP2040
+
 #ifdef USE_TEXT_SENSOR
   if (this->device_info_ != nullptr) {
     if (device_info.length() > 255)