Merge branch 'feat/h4_introduce_step4_rom_support' into 'master'

feat(esp32h4): add esp_rom and efuse files (stage4)

See merge request espressif/esp-idf!37160

Author: Kainarx

components/efuse/efuse_table_gen.py

@@ -495,8 +495,7 @@ def main():
     global idf_target
 
     parser = argparse.ArgumentParser(description='ESP32 eFuse Manager')
-    parser.add_argument('--idf_target', '-t', help='Target chip type', choices=['esp32', 'esp32s2', 'esp32s3', 'esp32c3',
-                        'esp32c2', 'esp32c6', 'esp32h2', 'esp32p4', 'esp32c5', 'esp32c61'], default='esp32')
+    parser.add_argument('--idf_target', '-t', help='Target chip type', default='esp32')
     parser.add_argument('--quiet', '-q', help="Don't print non-critical status messages to stderr", action='store_true')
     parser.add_argument('--debug', help='Create header file with debug info', default=False, action='store_false')
     parser.add_argument('--info', help='Print info about range of used bits', default=False, action='store_true')

components/efuse/esp32h4/esp_efuse_fields.c

@@ -0,0 +1,55 @@
+/*
+ * SPDX-FileCopyrightText: 2025 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include "esp_efuse.h"
+#include "esp_efuse_utility.h"
+#include "esp_efuse_table.h"
+#include "stdlib.h"
+#include "esp_types.h"
+#include "assert.h"
+#include "esp_err.h"
+#include "esp_log.h"
+#include "soc/efuse_periph.h"
+#include "sys/param.h"
+
+static __attribute__((unused)) const char *TAG = "efuse";
+
+// Contains functions that provide access to efuse fields which are often used in IDF.
+
+// Returns chip package from efuse
+uint32_t esp_efuse_get_pkg_ver(void)
+{
+    uint32_t pkg_ver = 0;
+#ifdef EFUSE_PKG_VERSION
+    esp_efuse_read_field_blob(ESP_EFUSE_PKG_VERSION, &pkg_ver, ESP_EFUSE_PKG_VERSION[0]->bit_count);
+#endif
+    return pkg_ver;
+}
+
+
+esp_err_t esp_efuse_set_rom_log_scheme(esp_efuse_rom_log_scheme_t log_scheme)
+{
+    int cur_log_scheme = 0;
+    esp_efuse_read_field_blob(ESP_EFUSE_UART_PRINT_CONTROL, &cur_log_scheme, 2);
+    if (!cur_log_scheme) { // not burned yet
+        return esp_efuse_write_field_blob(ESP_EFUSE_UART_PRINT_CONTROL, &log_scheme, 2);
+    } else {
+        return ESP_ERR_INVALID_STATE;
+    }
+}
+
+esp_err_t esp_efuse_disable_rom_download_mode(void)
+{
+    return esp_efuse_write_field_bit(ESP_EFUSE_DIS_DOWNLOAD_MODE);
+}
+
+esp_err_t esp_efuse_enable_rom_secure_download_mode(void)
+{
+    if (esp_efuse_read_field_bit(ESP_EFUSE_DIS_DOWNLOAD_MODE)) {
+        return ESP_ERR_INVALID_STATE;
+    }
+    return esp_efuse_write_field_bit(ESP_EFUSE_ENABLE_SECURITY_DOWNLOAD);
+}