diff --git a/components/esp_rom/patches/esp_rom_uart.c b/components/esp_rom/patches/esp_rom_uart.c
index 93736cbe10..7f71a542e2 100644
--- a/components/esp_rom/patches/esp_rom_uart.c
+++ b/components/esp_rom/patches/esp_rom_uart.c
@@ -1,23 +1,14 @@
-// Copyright 2010-2020 Espressif Systems (Shanghai) PTE LTD
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+/*
+ * SPDX-FileCopyrightText: 2010-2022 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
 
 #include <stdint.h>
 #include <stdlib.h>
 #include "esp_attr.h"
 #include "sdkconfig.h"
 #include "hal/uart_ll.h"
-#include "soc/uart_struct.h"
 
 #if CONFIG_IDF_TARGET_ESP32
 /**
@@ -25,24 +16,11 @@
  */
 IRAM_ATTR void esp_rom_uart_tx_wait_idle(uint8_t uart_no)
 {
-    uart_dev_t *device = NULL;
-    switch (uart_no) {
-    case 0:
-        device = &UART0;
-        break;
-    case 1:
-        device = &UART1;
-        break;
-    default:
-        device = &UART2;
-        break;
-    }
-    while (!uart_ll_is_tx_idle(device));
+    while (!uart_ll_is_tx_idle(UART_LL_GET_HW(uart_no))) {};
 }
 #endif
 
 IRAM_ATTR void esp_rom_uart_set_clock_baudrate(uint8_t uart_no, uint32_t clock_hz, uint32_t baud_rate)
 {
-    extern void uart_div_modify(uint8_t uart_no, uint32_t DivLatchValue);
-    uart_div_modify(uart_no, (clock_hz << 4) / baud_rate);
+    uart_ll_set_baudrate(UART_LL_GET_HW(uart_no), baud_rate, clock_hz);
 }
diff --git a/tools/ci/check_copyright_ignore.txt b/tools/ci/check_copyright_ignore.txt
index 61370e4344..f88797bcd2 100644
--- a/tools/ci/check_copyright_ignore.txt
+++ b/tools/ci/check_copyright_ignore.txt
@@ -594,7 +594,6 @@ components/esp_rom/linux/esp_rom_md5.c
 components/esp_rom/linux/esp_rom_sys.c
 components/esp_rom/patches/esp_rom_crc.c
 components/esp_rom/patches/esp_rom_tjpgd.c
-components/esp_rom/patches/esp_rom_uart.c
 components/esp_rom/test/test_libgcc.c
 components/esp_rom/test/test_miniz.c
 components/esp_rom/test/test_tjpgd.c