diff --git a/bsp/frdm-k64f/applications/startup.c b/bsp/frdm-k64f/applications/startup.c
index b3a7c3161eee38e82732ef5bef14df7c64962e6b..2df9e11de873c362b96da9783c3c8194d3ff47e8 100644
--- a/bsp/frdm-k64f/applications/startup.c
+++ b/bsp/frdm-k64f/applications/startup.c
@@ -1,11 +1,11 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2022, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
  * Date           Author       Notes
- * 
+ *
  */
 
 #include <rthw.h>
diff --git a/bsp/frdm-k64f/board/board.c b/bsp/frdm-k64f/board/board.c
index 334f571d6918d9cc0d27899e8df69f4165990de8..d21982756f79bf0fd781cf3de7f562b1cacd0f46 100644
--- a/bsp/frdm-k64f/board/board.c
+++ b/bsp/frdm-k64f/board/board.c
@@ -1,11 +1,11 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2022, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
  * Date           Author       Notes
- * 
+ *
  */
 
 #include <rthw.h>
@@ -69,7 +69,7 @@ void rt_hw_board_init()
 {
     /* NVIC Configuration */
     NVIC_Configuration();
-    
+
     BOARD_BootClockRUN();
 
     /* Configure the SysTick */
diff --git a/bsp/frdm-k64f/board/clock_config.c b/bsp/frdm-k64f/board/clock_config.c
index 3d5d55d77134116763fe770797ad6f0e83ab3699..93395efd1980f4790f6b6cbfecde6c6db9910047 100644
--- a/bsp/frdm-k64f/board/clock_config.c
+++ b/bsp/frdm-k64f/board/clock_config.c
@@ -196,7 +196,7 @@ void BOARD_BootClockRUN(void)
     CLOCK_SetXtal0Freq(oscConfig_BOARD_BootClockRUN.freq);
     /* Configure the Internal Reference clock (MCGIRCLK). */
     CLOCK_SetInternalRefClkConfig(mcgConfig_BOARD_BootClockRUN.irclkEnableMode,
-                                  mcgConfig_BOARD_BootClockRUN.ircs, 
+                                  mcgConfig_BOARD_BootClockRUN.ircs,
                                   mcgConfig_BOARD_BootClockRUN.fcrdiv);
     /* Configure FLL external reference divider (FRDIV). */
     CLOCK_CONFIG_SetFllExtRefDiv(mcgConfig_BOARD_BootClockRUN.frdiv);
diff --git a/bsp/frdm-k64f/board/drv_uart.c b/bsp/frdm-k64f/board/drv_uart.c
index c4a1da1013679b12849a1e5ea8cb006218d34797..28f9a81a3c21b24088e685989d25ffa770dad18f 100644
--- a/bsp/frdm-k64f/board/drv_uart.c
+++ b/bsp/frdm-k64f/board/drv_uart.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2022, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -243,7 +243,7 @@ void rt_hw_uart_init(void)
     config.parity    = PARITY_NONE;
     config.stop_bits = STOP_BITS_1;
     config.invert    = NRZ_NORMAL;
-	config.bufsz	 = RT_SERIAL_RB_BUFSZ;
+    config.bufsz     = RT_SERIAL_RB_BUFSZ;
 
     _k64_serial.ops    = &_k64_ops;
     _k64_serial.config = config;
diff --git a/bsp/frdm-k64f/board/drv_uart.h b/bsp/frdm-k64f/board/drv_uart.h
index 7fd78c9a4ef1f13d03bb75eb9431a6c9d18113db..d28e69f052b034c2b753b9d627ab2fcff2f65dce 100644
--- a/bsp/frdm-k64f/board/drv_uart.h
+++ b/bsp/frdm-k64f/board/drv_uart.h
@@ -1,11 +1,11 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2022, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
  * Date           Author       Notes
- * 
+ *
  */
 
 #ifndef DRV_UART_H
diff --git a/bsp/frdm-k64f/board/fsl_phy.c b/bsp/frdm-k64f/board/fsl_phy.c
index a5bef533d5fd743d983cfd1655de21a4635d0749..4d0191f4717b2a0248fa045501c694a73d23ab0e 100644
--- a/bsp/frdm-k64f/board/fsl_phy.c
+++ b/bsp/frdm-k64f/board/fsl_phy.c
@@ -80,7 +80,7 @@ status_t PHY_Init(ENET_Type *base, uint32_t phyAddr, uint32_t srcClock_Hz)
     while ((idReg != PHY_CONTROL_ID1) && (counter != 0))
     {
         PHY_Read(base, phyAddr, PHY_ID1_REG, &idReg);
-        counter --;       
+        counter --;
     }
 
     if (!counter)