Add ESP32-S3 support (#5091)

* feat: add initial support for ESP32-S3 (#3442)

* feat: add initial support for esp32-s3

* esp32s3: fix merge errors

* esp32s3: Fix Watchdog registers bad names

* esp32s3: fix linker relocation errors and support for ESP binary

* esp32s3: fix memory section overlap

* esp32s3: correct clock frequencies

* esp32s3: more stable cpu

* esp32s3: enable basic gpio support

* esp32s3: simplify loading and check extensions

* esp32s3: synchronize cpu features with clang

* esp32s3: correct iram origin

---------

Co-authored-by: Denys Vitali <denys@denv.it>
Co-authored-by: Olivier Fauchon <ofauchon2204@gmail.com>

builder/build.go

@@ -1042,7 +1042,7 @@ func Build(pkgName, outpath, tmpdir string, config *compileopts.Config) (BuildRe
 		if err != nil {
 			return result, err
 		}
-	case "esp32", "esp32-img", "esp32c3", "esp8266":
+	case "esp32", "esp32-img", "esp32c3", "esp32s3", "esp8266":
 		// Special format for the ESP family of chips (parsed by the ROM
 		// bootloader).
 		result.Binary = filepath.Join(tmpdir, "main"+outext)

builder/builder_test.go

@@ -28,6 +28,7 @@ func TestClangAttributes(t *testing.T) {
 		"cortex-m4",
 		"cortex-m7",
 		"esp32c3",
+		"esp32s3",
 		"fe310",
 		"gameboy-advance",
 		"k210",

builder/esp.go

@@ -100,11 +100,12 @@ func makeESPFirmwareImage(infile, outfile, format string) error {
 	chip_id := map[string]uint16{
 		"esp32":   0x0000,
 		"esp32c3": 0x0005,
+		"esp32s3": 0x0009,
 	}[chip]
 
 	// Image header.
 	switch chip {
-	case "esp32", "esp32c3":
+	case "esp32", "esp32c3", "esp32s3":
 		// Header format:
 		// https://github.com/espressif/esp-idf/blob/v4.3/components/bootloader_support/include/esp_app_format.h#L71
 		// Note: not adding a SHA256 hash as the binary is modified by