diff --git a/hw/bsp/mimxrt1010_evk/board.h b/hw/bsp/imxrt/boards/mimxrt1010_evk/board.h
similarity index 73%
rename from hw/bsp/mimxrt1010_evk/board.h
rename to hw/bsp/imxrt/boards/mimxrt1010_evk/board.h
index 7e4b57297..4f21b52fa 100644
--- a/hw/bsp/mimxrt1010_evk/board.h
+++ b/hw/bsp/imxrt/boards/mimxrt1010_evk/board.h
@@ -33,4 +33,21 @@
 // required since iMX RT10xx SDK include this file for board size
 #define BOARD_FLASH_SIZE (0x1000000U)
 
+// LED
+#define LED_PINMUX            IOMUXC_GPIO_11_GPIOMUX_IO11
+#define LED_PORT              GPIO1
+#define LED_PIN               11
+#define LED_STATE_ON          0
+
+// SW8 button
+#define BUTTON_PINMUX         IOMUXC_GPIO_SD_05_GPIO2_IO05
+#define BUTTON_PORT           GPIO2
+#define BUTTON_PIN            5
+#define BUTTON_STATE_ACTIVE   0
+
+// UART
+#define UART_PORT             LPUART1
+#define UART_RX_PINMUX        IOMUXC_GPIO_09_LPUART1_RXD
+#define UART_TX_PINMUX        IOMUXC_GPIO_10_LPUART1_TXD
+
 #endif /* BOARD_H_ */
diff --git a/hw/bsp/imxrt/boards/mimxrt1010_evk/board.mk b/hw/bsp/imxrt/boards/mimxrt1010_evk/board.mk
new file mode 100644
index 000000000..507db7f00
--- /dev/null
+++ b/hw/bsp/imxrt/boards/mimxrt1010_evk/board.mk
@@ -0,0 +1,11 @@
+CFLAGS += -DCPU_MIMXRT1011DAE5A
+MCU_VARIANT = MIMXRT1011
+
+# For flash-jlink target
+JLINK_DEVICE = MIMXRT1011DAE5A
+
+# For flash-pyocd target
+PYOCD_TARGET = mimxrt1010
+
+# flash using pyocd
+flash: flash-pyocd
diff --git a/hw/bsp/mimxrt1010_evk/evkmimxrt1010_flexspi_nor_config.c b/hw/bsp/imxrt/boards/mimxrt1010_evk/evkmimxrt1010_flexspi_nor_config.c
similarity index 100%
rename from hw/bsp/mimxrt1010_evk/evkmimxrt1010_flexspi_nor_config.c
rename to hw/bsp/imxrt/boards/mimxrt1010_evk/evkmimxrt1010_flexspi_nor_config.c
diff --git a/hw/bsp/mimxrt1010_evk/evkmimxrt1010_flexspi_nor_config.h b/hw/bsp/imxrt/boards/mimxrt1010_evk/evkmimxrt1010_flexspi_nor_config.h
similarity index 100%
rename from hw/bsp/mimxrt1010_evk/evkmimxrt1010_flexspi_nor_config.h
rename to hw/bsp/imxrt/boards/mimxrt1010_evk/evkmimxrt1010_flexspi_nor_config.h
diff --git a/hw/bsp/mimxrt1015_evk/board.h b/hw/bsp/imxrt/boards/mimxrt1015_evk/board.h
similarity index 72%
rename from hw/bsp/mimxrt1015_evk/board.h
rename to hw/bsp/imxrt/boards/mimxrt1015_evk/board.h
index 5f3e31586..932ce7fd7 100644
--- a/hw/bsp/mimxrt1015_evk/board.h
+++ b/hw/bsp/imxrt/boards/mimxrt1015_evk/board.h
@@ -31,4 +31,21 @@
 // required since iMX RT10xx SDK include this file for board size
 #define BOARD_FLASH_SIZE (0x1000000U)
 
+// LED
+#define LED_PINMUX            IOMUXC_GPIO_SD_B1_01_GPIO3_IO21
+#define LED_PORT              GPIO3
+#define LED_PIN               21
+#define LED_STATE_ON          0
+
+// SW8 button
+#define BUTTON_PINMUX         IOMUXC_GPIO_EMC_09_GPIO2_IO09
+#define BUTTON_PORT           GPIO2
+#define BUTTON_PIN            9
+#define BUTTON_STATE_ACTIVE   0
+
+// UART
+#define UART_PORT             LPUART1
+#define UART_RX_PINMUX        IOMUXC_GPIO_AD_B0_07_LPUART1_RX
+#define UART_TX_PINMUX        IOMUXC_GPIO_AD_B0_06_LPUART1_TX
+
 #endif /* BOARD_H_ */
diff --git a/hw/bsp/imxrt/boards/mimxrt1015_evk/board.mk b/hw/bsp/imxrt/boards/mimxrt1015_evk/board.mk
new file mode 100644
index 000000000..17fd25dfe
--- /dev/null
+++ b/hw/bsp/imxrt/boards/mimxrt1015_evk/board.mk
@@ -0,0 +1,11 @@
+CFLAGS += -DCPU_MIMXRT1015DAF5A
+MCU_VARIANT = MIMXRT1015
+
+# For flash-jlink target
+JLINK_DEVICE = MIMXRT1015DAF5A
+
+# For flash-pyocd target
+PYOCD_TARGET = mimxrt1015
+
+# flash using pyocd
+flash: flash-pyocd
diff --git a/hw/bsp/mimxrt1015_evk/evkmimxrt1015_flexspi_nor_config.c b/hw/bsp/imxrt/boards/mimxrt1015_evk/evkmimxrt1015_flexspi_nor_config.c
similarity index 100%
rename from hw/bsp/mimxrt1015_evk/evkmimxrt1015_flexspi_nor_config.c
rename to hw/bsp/imxrt/boards/mimxrt1015_evk/evkmimxrt1015_flexspi_nor_config.c
diff --git a/hw/bsp/mimxrt1015_evk/evkmimxrt1015_flexspi_nor_config.h b/hw/bsp/imxrt/boards/mimxrt1015_evk/evkmimxrt1015_flexspi_nor_config.h
similarity index 100%
rename from hw/bsp/mimxrt1015_evk/evkmimxrt1015_flexspi_nor_config.h
rename to hw/bsp/imxrt/boards/mimxrt1015_evk/evkmimxrt1015_flexspi_nor_config.h
diff --git a/hw/bsp/mimxrt1020_evk/board.h b/hw/bsp/imxrt/boards/mimxrt1020_evk/board.h
similarity index 72%
rename from hw/bsp/mimxrt1020_evk/board.h
rename to hw/bsp/imxrt/boards/mimxrt1020_evk/board.h
index f1bd06369..56ed5855b 100644
--- a/hw/bsp/mimxrt1020_evk/board.h
+++ b/hw/bsp/imxrt/boards/mimxrt1020_evk/board.h
@@ -31,4 +31,21 @@
 // required since iMX RT10xx SDK include this file for board size
 #define BOARD_FLASH_SIZE (0x800000U)
 
+// LED
+#define LED_PINMUX            IOMUXC_GPIO_AD_B0_05_GPIO1_IO05
+#define LED_PORT              GPIO1
+#define LED_PIN               5
+#define LED_STATE_ON          0
+
+// SW8 button
+#define BUTTON_PINMUX         IOMUXC_SNVS_WAKEUP_GPIO5_IO00
+#define BUTTON_PORT           GPIO5
+#define BUTTON_PIN            0
+#define BUTTON_STATE_ACTIVE   0
+
+// UART
+#define UART_PORT             LPUART1
+#define UART_RX_PINMUX        IOMUXC_GPIO_AD_B0_07_LPUART1_RX
+#define UART_TX_PINMUX        IOMUXC_GPIO_AD_B0_06_LPUART1_TX
+
 #endif /* BOARD_H_ */
diff --git a/hw/bsp/imxrt/boards/mimxrt1020_evk/board.mk b/hw/bsp/imxrt/boards/mimxrt1020_evk/board.mk
new file mode 100644
index 000000000..b15da1b67
--- /dev/null
+++ b/hw/bsp/imxrt/boards/mimxrt1020_evk/board.mk
@@ -0,0 +1,11 @@
+CFLAGS += -DCPU_MIMXRT1021DAG5A
+MCU_VARIANT = MIMXRT1021
+
+# For flash-jlink target
+JLINK_DEVICE = MIMXRT1021DAG5A
+
+# For flash-pyocd target
+PYOCD_TARGET = mimxrt1020
+
+# flash using pyocd
+flash: flash-pyocd
diff --git a/hw/bsp/mimxrt1020_evk/evkmimxrt1020_flexspi_nor_config.c b/hw/bsp/imxrt/boards/mimxrt1020_evk/evkmimxrt1020_flexspi_nor_config.c
similarity index 100%
rename from hw/bsp/mimxrt1020_evk/evkmimxrt1020_flexspi_nor_config.c
rename to hw/bsp/imxrt/boards/mimxrt1020_evk/evkmimxrt1020_flexspi_nor_config.c
diff --git a/hw/bsp/mimxrt1020_evk/evkmimxrt1020_flexspi_nor_config.h b/hw/bsp/imxrt/boards/mimxrt1020_evk/evkmimxrt1020_flexspi_nor_config.h
similarity index 100%
rename from hw/bsp/mimxrt1020_evk/evkmimxrt1020_flexspi_nor_config.h
rename to hw/bsp/imxrt/boards/mimxrt1020_evk/evkmimxrt1020_flexspi_nor_config.h
diff --git a/hw/bsp/mimxrt1050_evkb/board.h b/hw/bsp/imxrt/boards/mimxrt1050_evkb/board.h
similarity index 72%
rename from hw/bsp/mimxrt1050_evkb/board.h
rename to hw/bsp/imxrt/boards/mimxrt1050_evkb/board.h
index 3f660ac7d..928fbd727 100644
--- a/hw/bsp/mimxrt1050_evkb/board.h
+++ b/hw/bsp/imxrt/boards/mimxrt1050_evkb/board.h
@@ -31,4 +31,21 @@
 // required since iMX RT10xx SDK include this file for board size
 #define BOARD_FLASH_SIZE (0x4000000U)
 
+// LED
+#define LED_PINMUX            IOMUXC_GPIO_AD_B0_09_GPIO1_IO09
+#define LED_PORT              GPIO1
+#define LED_PIN               9
+#define LED_STATE_ON          0
+
+// SW8 button
+#define BUTTON_PINMUX         IOMUXC_SNVS_WAKEUP_GPIO5_IO00
+#define BUTTON_PORT           GPIO5
+#define BUTTON_PIN            0
+#define BUTTON_STATE_ACTIVE   0
+
+// UART
+#define UART_PORT             LPUART1
+#define UART_RX_PINMUX        IOMUXC_GPIO_AD_B0_13_LPUART1_RX
+#define UART_TX_PINMUX        IOMUXC_GPIO_AD_B0_12_LPUART1_TX
+
 #endif /* BOARD_H_ */
diff --git a/hw/bsp/imxrt/boards/mimxrt1050_evkb/board.mk b/hw/bsp/imxrt/boards/mimxrt1050_evkb/board.mk
new file mode 100644
index 000000000..9fd229105
--- /dev/null
+++ b/hw/bsp/imxrt/boards/mimxrt1050_evkb/board.mk
@@ -0,0 +1,8 @@
+CFLAGS += -DCPU_MIMXRT1052DVL6B
+MCU_VARIANT = MIMXRT1052
+
+# For flash-pyocd target
+PYOCD_TARGET = mimxrt1050
+
+# flash using pyocd
+flash: flash-pyocd
diff --git a/hw/bsp/mimxrt1050_evkb/evkbimxrt1050_flexspi_nor_config.c b/hw/bsp/imxrt/boards/mimxrt1050_evkb/evkbimxrt1050_flexspi_nor_config.c
similarity index 100%
rename from hw/bsp/mimxrt1050_evkb/evkbimxrt1050_flexspi_nor_config.c
rename to hw/bsp/imxrt/boards/mimxrt1050_evkb/evkbimxrt1050_flexspi_nor_config.c
diff --git a/hw/bsp/mimxrt1050_evkb/evkbimxrt1050_flexspi_nor_config.h b/hw/bsp/imxrt/boards/mimxrt1050_evkb/evkbimxrt1050_flexspi_nor_config.h
similarity index 100%
rename from hw/bsp/mimxrt1050_evkb/evkbimxrt1050_flexspi_nor_config.h
rename to hw/bsp/imxrt/boards/mimxrt1050_evkb/evkbimxrt1050_flexspi_nor_config.h
diff --git a/hw/bsp/mimxrt1060_evk/board.h b/hw/bsp/imxrt/boards/mimxrt1060_evk/board.h
similarity index 72%
rename from hw/bsp/mimxrt1060_evk/board.h
rename to hw/bsp/imxrt/boards/mimxrt1060_evk/board.h
index f1bd06369..7fa37e33f 100644
--- a/hw/bsp/mimxrt1060_evk/board.h
+++ b/hw/bsp/imxrt/boards/mimxrt1060_evk/board.h
@@ -31,4 +31,21 @@
 // required since iMX RT10xx SDK include this file for board size
 #define BOARD_FLASH_SIZE (0x800000U)
 
+// LED
+#define LED_PINMUX            IOMUXC_GPIO_AD_B0_09_GPIO1_IO09
+#define LED_PORT              GPIO1
+#define LED_PIN               9
+#define LED_STATE_ON          0
+
+// SW8 button
+#define BUTTON_PINMUX         IOMUXC_SNVS_WAKEUP_GPIO5_IO00
+#define BUTTON_PORT           GPIO5
+#define BUTTON_PIN            0
+#define BUTTON_STATE_ACTIVE   0
+
+// UART
+#define UART_PORT             LPUART1
+#define UART_RX_PINMUX        IOMUXC_GPIO_AD_B0_13_LPUART1_RX
+#define UART_TX_PINMUX        IOMUXC_GPIO_AD_B0_12_LPUART1_TX
+
 #endif /* BOARD_H_ */
diff --git a/hw/bsp/imxrt/boards/mimxrt1060_evk/board.mk b/hw/bsp/imxrt/boards/mimxrt1060_evk/board.mk
new file mode 100644
index 000000000..d0498dbb1
--- /dev/null
+++ b/hw/bsp/imxrt/boards/mimxrt1060_evk/board.mk
@@ -0,0 +1,11 @@
+CFLAGS += -DCPU_MIMXRT1062DVL6A
+MCU_VARIANT = MIMXRT1062
+
+# For flash-jlink target
+JLINK_DEVICE = MIMXRT1062xxx6A
+
+# For flash-pyocd target
+PYOCD_TARGET = mimxrt1060
+
+# flash using pyocd
+flash: flash-pyocd
diff --git a/hw/bsp/mimxrt1060_evk/evkmimxrt1060_flexspi_nor_config.c b/hw/bsp/imxrt/boards/mimxrt1060_evk/evkmimxrt1060_flexspi_nor_config.c
similarity index 100%
rename from hw/bsp/mimxrt1060_evk/evkmimxrt1060_flexspi_nor_config.c
rename to hw/bsp/imxrt/boards/mimxrt1060_evk/evkmimxrt1060_flexspi_nor_config.c
diff --git a/hw/bsp/mimxrt1060_evk/evkmimxrt1060_flexspi_nor_config.h b/hw/bsp/imxrt/boards/mimxrt1060_evk/evkmimxrt1060_flexspi_nor_config.h
similarity index 100%
rename from hw/bsp/mimxrt1060_evk/evkmimxrt1060_flexspi_nor_config.h
rename to hw/bsp/imxrt/boards/mimxrt1060_evk/evkmimxrt1060_flexspi_nor_config.h
diff --git a/hw/bsp/mimxrt1064_evk/board.h b/hw/bsp/imxrt/boards/mimxrt1064_evk/board.h
similarity index 72%
rename from hw/bsp/mimxrt1064_evk/board.h
rename to hw/bsp/imxrt/boards/mimxrt1064_evk/board.h
index 3157e7d5e..5f51e91a2 100644
--- a/hw/bsp/mimxrt1064_evk/board.h
+++ b/hw/bsp/imxrt/boards/mimxrt1064_evk/board.h
@@ -31,4 +31,22 @@
 // required since iMX RT10xx SDK include this file for board size
 #define BOARD_FLASH_SIZE (0x400000U)
 
+// LED
+#define LED_PINMUX            IOMUXC_GPIO_AD_B0_09_GPIO1_IO09
+#define LED_PORT              GPIO1
+#define LED_PIN               9
+#define LED_STATE_ON          0
+
+// SW8 button
+#define BUTTON_PINMUX         IOMUXC_SNVS_WAKEUP_GPIO5_IO00
+#define BUTTON_PORT           GPIO5
+#define BUTTON_PIN            0
+#define BUTTON_STATE_ACTIVE   0
+
+// UART
+#define UART_PORT             LPUART1
+#define UART_RX_PINMUX        IOMUXC_GPIO_AD_B0_13_LPUART1_RX
+#define UART_TX_PINMUX        IOMUXC_GPIO_AD_B0_12_LPUART1_TX
+
+
 #endif /* BOARD_H_ */
diff --git a/hw/bsp/imxrt/boards/mimxrt1064_evk/board.mk b/hw/bsp/imxrt/boards/mimxrt1064_evk/board.mk
new file mode 100644
index 000000000..586d74fe5
--- /dev/null
+++ b/hw/bsp/imxrt/boards/mimxrt1064_evk/board.mk
@@ -0,0 +1,11 @@
+CFLAGS += -DCPU_MIMXRT1064DVL6A
+MCU_VARIANT = MIMXRT1064
+
+# For flash-jlink target
+JLINK_DEVICE = MIMXRT1064xxx6A
+
+# For flash-pyocd target
+PYOCD_TARGET = mimxrt1064
+
+# flash using pyocd
+flash: flash-pyocd
diff --git a/hw/bsp/mimxrt1064_evk/evkmimxrt1064_flexspi_nor_config.c b/hw/bsp/imxrt/boards/mimxrt1064_evk/evkmimxrt1064_flexspi_nor_config.c
similarity index 100%
rename from hw/bsp/mimxrt1064_evk/evkmimxrt1064_flexspi_nor_config.c
rename to hw/bsp/imxrt/boards/mimxrt1064_evk/evkmimxrt1064_flexspi_nor_config.c
diff --git a/hw/bsp/mimxrt1064_evk/evkmimxrt1064_flexspi_nor_config.h b/hw/bsp/imxrt/boards/mimxrt1064_evk/evkmimxrt1064_flexspi_nor_config.h
similarity index 100%
rename from hw/bsp/mimxrt1064_evk/evkmimxrt1064_flexspi_nor_config.h
rename to hw/bsp/imxrt/boards/mimxrt1064_evk/evkmimxrt1064_flexspi_nor_config.h
diff --git a/hw/bsp/mimxrt1060_evk/mimxrt1060_evk.c b/hw/bsp/imxrt/family.c
similarity index 89%
rename from hw/bsp/mimxrt1060_evk/mimxrt1060_evk.c
rename to hw/bsp/imxrt/family.c
index 6fb00b9b7..9dff104f1 100644
--- a/hw/bsp/mimxrt1060_evk/mimxrt1060_evk.c
+++ b/hw/bsp/imxrt/family.c
@@ -24,7 +24,8 @@
  * This file is part of the TinyUSB stack.
  */
 
-#include "../board.h"
+#include "bsp/board.h"
+#include "board.h"
 #include "fsl_device_registers.h"
 #include "fsl_gpio.h"
 #include "fsl_iomuxc.h"
@@ -33,22 +34,6 @@
 
 #include "clock_config.h"
 
-#define LED_PINMUX            IOMUXC_GPIO_AD_B0_09_GPIO1_IO09
-#define LED_PORT              GPIO1
-#define LED_PIN               9
-#define LED_STATE_ON          0
-
-// SW8 button
-#define BUTTON_PINMUX         IOMUXC_SNVS_WAKEUP_GPIO5_IO00
-#define BUTTON_PORT           GPIO5
-#define BUTTON_PIN            0
-#define BUTTON_STATE_ACTIVE   0
-
-// UART
-#define UART_PORT             LPUART1
-#define UART_RX_PINMUX        IOMUXC_GPIO_AD_B0_13_LPUART1_RX
-#define UART_TX_PINMUX        IOMUXC_GPIO_AD_B0_12_LPUART1_TX
-
 // needed by fsl_flexspi_nor_boot
 const uint8_t dcd_data[] = { 0x00 };
 
@@ -79,6 +64,7 @@ void board_init(void)
 
   // Button
   IOMUXC_SetPinMux( BUTTON_PINMUX, 0U);
+  IOMUXC_SetPinConfig(BUTTON_PINMUX, 0x01B0A0U);
   gpio_pin_config_t button_config = { kGPIO_DigitalInput, 0, kGPIO_IntRisingEdge, };
   GPIO_PinInit(BUTTON_PORT, BUTTON_PIN, &button_config);
 
@@ -100,7 +86,14 @@ void board_init(void)
   CLOCK_EnableUsbhs0PhyPllClock(kCLOCK_Usbphy480M, 480000000U);
   CLOCK_EnableUsbhs0Clock(kCLOCK_Usb480M, 480000000U);
 
-  USBPHY_Type* usb_phy = USBPHY1;
+  USBPHY_Type* usb_phy;
+
+  // RT105x RT106x have dual USB controller. TODO support USB2
+#ifdef USBPHY1
+  usb_phy = USBPHY1;
+#else
+  usb_phy = USBPHY;
+#endif
 
   // Enable PHY support for Low speed device + LS via FS Hub
   usb_phy->CTRL |= USBPHY_CTRL_SET_ENUTMILEVEL2_MASK | USBPHY_CTRL_SET_ENUTMILEVEL3_MASK;
diff --git a/hw/bsp/mimxrt1015_evk/board.mk b/hw/bsp/imxrt/family.mk
similarity index 70%
rename from hw/bsp/mimxrt1015_evk/board.mk
rename to hw/bsp/imxrt/family.mk
index 3ce7c2f82..47d403069 100644
--- a/hw/bsp/mimxrt1015_evk/board.mk
+++ b/hw/bsp/imxrt/family.mk
@@ -1,3 +1,5 @@
+include $(TOP)/$(BOARD_PATH)/board.mk
+
 CFLAGS += \
   -mthumb \
   -mabi=aapcs \
@@ -5,7 +7,6 @@ CFLAGS += \
   -mfloat-abi=hard \
   -mfpu=fpv5-d16 \
   -D__ARMVFP__=0 -D__ARMFPV5__=0\
-  -DCPU_MIMXRT1015DAF5A \
   -DXIP_EXTERNAL_FLASH=1 \
   -DXIP_BOOT_HEADER_ENABLE=1 \
   -DCFG_TUSB_MCU=OPT_MCU_MIMXRT10XX
@@ -13,13 +14,17 @@ CFLAGS += \
 # mcu driver cause following warnings
 CFLAGS += -Wno-error=unused-parameter -Wno-error=implicit-fallthrough=
 
-MCU_DIR = hw/mcu/nxp/sdk/devices/MIMXRT1015
+MCU_DIR = hw/mcu/nxp/sdk/devices/$(MCU_VARIANT)
 
 # All source paths should be relative to the top level.
-LD_FILE = $(MCU_DIR)/gcc/MIMXRT1015xxxxx_flexspi_nor.ld
+LD_FILE = $(MCU_DIR)/gcc/$(MCU_VARIANT)xxxxx_flexspi_nor.ld
+
+# TODO for net_lwip_webserver exmaple, but may not needed !! 
+LDFLAGS += \
+	-Wl,--defsym,__stack_size__=0x800 \
 
 SRC_C += \
-	$(MCU_DIR)/system_MIMXRT1015.c \
+	$(MCU_DIR)/system_$(MCU_VARIANT).c \
 	$(MCU_DIR)/xip/fsl_flexspi_nor_boot.c \
 	$(MCU_DIR)/project_template/clock_config.c \
 	$(MCU_DIR)/drivers/fsl_clock.c \
@@ -28,13 +33,13 @@ SRC_C += \
 	$(MCU_DIR)/drivers/fsl_lpuart.c
 
 INC += \
-	$(TOP)/hw/bsp/$(BOARD) \
+	$(TOP)/$(BOARD_PATH) \
 	$(TOP)/$(MCU_DIR)/../../CMSIS/Include \
 	$(TOP)/$(MCU_DIR) \
 	$(TOP)/$(MCU_DIR)/drivers \
 	$(TOP)/$(MCU_DIR)/project_template \
 
-SRC_S += $(MCU_DIR)/gcc/startup_MIMXRT1015.S
+SRC_S += $(MCU_DIR)/gcc/startup_$(MCU_VARIANT).S
 
 # For TinyUSB port source
 VENDOR = nxp
@@ -43,11 +48,3 @@ CHIP_FAMILY = transdimension
 # For freeRTOS port source
 FREERTOS_PORT = ARM_CM7/r0p1
 
-# For flash-jlink target
-JLINK_DEVICE = MIMXRT1015DAF5A
-
-# For flash-pyocd target
-PYOCD_TARGET = mimxrt1015
-
-# flash using pyocd
-flash: flash-pyocd
diff --git a/hw/bsp/mimxrt1010_evk/board.mk b/hw/bsp/mimxrt1010_evk/board.mk
deleted file mode 100644
index bb714c1c5..000000000
--- a/hw/bsp/mimxrt1010_evk/board.mk
+++ /dev/null
@@ -1,57 +0,0 @@
-CFLAGS += \
-  -mthumb \
-  -mabi=aapcs \
-  -mcpu=cortex-m7 \
-  -mfloat-abi=hard \
-  -mfpu=fpv5-d16 \
-  -D__ARMVFP__=0 -D__ARMFPV5__=0\
-  -DCPU_MIMXRT1011DAE5A \
-  -DXIP_EXTERNAL_FLASH=1 \
-  -DXIP_BOOT_HEADER_ENABLE=1 \
-  -DCFG_TUSB_MCU=OPT_MCU_MIMXRT10XX
-
-# mcu driver cause following warnings
-# CFLAGS += -Wno-error=unused-parameter -Wno-error=implicit-fallthrough=
-CFLAGS += -Wno-error=unused-parameter
-
-MCU_DIR = hw/mcu/nxp/sdk/devices/MIMXRT1011
-
-# All source paths should be relative to the top level.
-LD_FILE = $(MCU_DIR)/gcc/MIMXRT1011xxxxx_flexspi_nor.ld
-
-LDFLAGS += \
-	-Wl,--defsym,__stack_size__=0x800 \
-
-SRC_C += \
-	$(MCU_DIR)/system_MIMXRT1011.c \
-	$(MCU_DIR)/xip/fsl_flexspi_nor_boot.c \
-	$(MCU_DIR)/project_template/clock_config.c \
-	$(MCU_DIR)/drivers/fsl_clock.c \
-	$(MCU_DIR)/drivers/fsl_gpio.c \
-	$(MCU_DIR)/drivers/fsl_common.c \
-	$(MCU_DIR)/drivers/fsl_lpuart.c
-
-INC += \
-	$(TOP)/hw/bsp/$(BOARD) \
-	$(TOP)/$(MCU_DIR)/../../CMSIS/Include \
-	$(TOP)/$(MCU_DIR) \
-	$(TOP)/$(MCU_DIR)/drivers \
-	$(TOP)/$(MCU_DIR)/project_template \
-
-SRC_S += $(MCU_DIR)/gcc/startup_MIMXRT1011.S
-
-# For TinyUSB port source
-VENDOR = nxp
-CHIP_FAMILY = transdimension
-
-# For freeRTOS port source
-FREERTOS_PORT = ARM_CM7/r0p1
-
-# For flash-jlink target
-JLINK_DEVICE = MIMXRT1011DAE5A
-
-# For flash-pyocd target
-PYOCD_TARGET = mimxrt1010
-
-# flash using pyocd
-flash: flash-pyocd
diff --git a/hw/bsp/mimxrt1010_evk/mimxrt1010_evk.c b/hw/bsp/mimxrt1010_evk/mimxrt1010_evk.c
deleted file mode 100644
index 1c4b1798c..000000000
--- a/hw/bsp/mimxrt1010_evk/mimxrt1010_evk.c
+++ /dev/null
@@ -1,170 +0,0 @@
-/* 
- * The MIT License (MIT)
- *
- * Copyright (c) 2018, hathach (tinyusb.org)
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- *
- * This file is part of the TinyUSB stack.
- */
-
-#include "../board.h"
-#include "fsl_device_registers.h"
-#include "fsl_gpio.h"
-#include "fsl_iomuxc.h"
-#include "fsl_clock.h"
-#include "fsl_lpuart.h"
-
-#include "clock_config.h"
-
-#define LED_PINMUX            IOMUXC_GPIO_11_GPIOMUX_IO11
-#define LED_PORT              GPIO1
-#define LED_PIN               11
-#define LED_STATE_ON          0
-
-// SW8 button
-#define BUTTON_PINMUX         IOMUXC_GPIO_SD_05_GPIO2_IO05
-#define BUTTON_PORT           GPIO2
-#define BUTTON_PIN            5
-#define BUTTON_STATE_ACTIVE   0
-
-// UART
-#define UART_PORT             LPUART1
-#define UART_RX_PINMUX        IOMUXC_GPIO_09_LPUART1_RXD
-#define UART_TX_PINMUX        IOMUXC_GPIO_10_LPUART1_TXD
-
-const uint8_t dcd_data[] = { 0x00 };
-
-void board_init(void)
-{
-  // Init clock
-  BOARD_BootClockRUN();
-  SystemCoreClockUpdate();
-
-  // Enable IOCON clock
-  CLOCK_EnableClock(kCLOCK_Iomuxc);
-
-#if CFG_TUSB_OS == OPT_OS_NONE
-  // 1ms tick timer
-  SysTick_Config(SystemCoreClock / 1000);
-#elif CFG_TUSB_OS == OPT_OS_FREERTOS
-  // If freeRTOS is used, IRQ priority is limit by max syscall ( smaller is higher )
-//  NVIC_SetPriority(USB0_IRQn, configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY );
-#endif
-
-  // LED
-  IOMUXC_SetPinMux( LED_PINMUX, 0U);
-  IOMUXC_SetPinConfig( LED_PINMUX, 0x10B0U);
-
-  gpio_pin_config_t led_config = { kGPIO_DigitalOutput, 0, kGPIO_NoIntmode };
-  GPIO_PinInit(LED_PORT, LED_PIN, &led_config);
-  board_led_write(true);
-
-  // Button
-  IOMUXC_SetPinMux( BUTTON_PINMUX, 0U);
-  IOMUXC_SetPinConfig(BUTTON_PINMUX, 0x01B0A0U);
-  gpio_pin_config_t button_config = { kGPIO_DigitalInput, 0, kGPIO_IntRisingEdge, };
-  GPIO_PinInit(BUTTON_PORT, BUTTON_PIN, &button_config);
-
-  // UART
-  IOMUXC_SetPinMux( UART_TX_PINMUX, 0U);
-  IOMUXC_SetPinMux( UART_RX_PINMUX, 0U);
-  IOMUXC_SetPinConfig( UART_TX_PINMUX, 0x10B0u);
-  IOMUXC_SetPinConfig( UART_RX_PINMUX, 0x10B0u);
-
-  lpuart_config_t uart_config;
-  LPUART_GetDefaultConfig(&uart_config);
-  uart_config.baudRate_Bps = CFG_BOARD_UART_BAUDRATE;
-  uart_config.enableTx = true;
-  uart_config.enableRx = true;
-  LPUART_Init(UART_PORT, &uart_config, (CLOCK_GetPllFreq(kCLOCK_PllUsb1) / 6U) / (CLOCK_GetDiv(kCLOCK_UartDiv) + 1U));
-
-  //------------- USB0 -------------//
-  // Clock
-  CLOCK_EnableUsbhs0PhyPllClock(kCLOCK_Usbphy480M, 480000000U);
-  CLOCK_EnableUsbhs0Clock(kCLOCK_Usb480M, 480000000U);
-
-  USBPHY_Type* usb_phy = USBPHY;
-
-  // Enable PHY support for Low speed device + LS via FS Hub
-  usb_phy->CTRL |= USBPHY_CTRL_SET_ENUTMILEVEL2_MASK | USBPHY_CTRL_SET_ENUTMILEVEL3_MASK;
-
-  // Enable all power for normal operation
-  usb_phy->PWD = 0;
-
-  // TX Timing
-  uint32_t phytx = usb_phy->TX;
-  phytx &= ~(USBPHY_TX_D_CAL_MASK | USBPHY_TX_TXCAL45DM_MASK | USBPHY_TX_TXCAL45DP_MASK);
-  phytx |= USBPHY_TX_D_CAL(0x0C) | USBPHY_TX_TXCAL45DP(0x06) | USBPHY_TX_TXCAL45DM(0x06);
-  usb_phy->TX = phytx;
-}
-
-//--------------------------------------------------------------------+
-// USB Interrupt Handler
-//--------------------------------------------------------------------+
-void USB_OTG1_IRQHandler(void)
-{
-  #if CFG_TUSB_RHPORT0_MODE & OPT_MODE_HOST
-    tuh_int_handler(0);
-  #endif
-
-  #if CFG_TUSB_RHPORT0_MODE & OPT_MODE_DEVICE
-    tud_int_handler(0);
-  #endif
-}
-
-//--------------------------------------------------------------------+
-// Board porting API
-//--------------------------------------------------------------------+
-
-void board_led_write(bool state)
-{
-  GPIO_PinWrite(LED_PORT, LED_PIN, state ? LED_STATE_ON : (1-LED_STATE_ON));
-}
-
-uint32_t board_button_read(void)
-{
-  // active low
-  return BUTTON_STATE_ACTIVE == GPIO_PinRead(BUTTON_PORT, BUTTON_PIN);
-}
-
-int board_uart_read(uint8_t* buf, int len)
-{
-  LPUART_ReadBlocking(UART_PORT, buf, len);
-  return len;
-}
-
-int board_uart_write(void const * buf, int len)
-{
-  LPUART_WriteBlocking(UART_PORT, (uint8_t*)buf, len);
-  return len;
-}
-
-#if CFG_TUSB_OS == OPT_OS_NONE
-volatile uint32_t system_ticks = 0;
-void SysTick_Handler(void)
-{
-  system_ticks++;
-}
-
-uint32_t board_millis(void)
-{
-  return system_ticks;
-}
-#endif
diff --git a/hw/bsp/mimxrt1015_evk/mimxrt1015_evk.c b/hw/bsp/mimxrt1015_evk/mimxrt1015_evk.c
deleted file mode 100644
index 2b1f3cc80..000000000
--- a/hw/bsp/mimxrt1015_evk/mimxrt1015_evk.c
+++ /dev/null
@@ -1,170 +0,0 @@
-/* 
- * The MIT License (MIT)
- *
- * Copyright (c) 2018, hathach (tinyusb.org)
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- *
- * This file is part of the TinyUSB stack.
- */
-
-#include "../board.h"
-#include "fsl_device_registers.h"
-#include "fsl_gpio.h"
-#include "fsl_iomuxc.h"
-#include "fsl_clock.h"
-#include "fsl_lpuart.h"
-
-#include "clock_config.h"
-
-#define LED_PINMUX            IOMUXC_GPIO_SD_B1_01_GPIO3_IO21
-#define LED_PORT              GPIO3
-#define LED_PIN               21
-#define LED_STATE_ON          0
-
-// SW8 button
-#define BUTTON_PINMUX         IOMUXC_GPIO_EMC_09_GPIO2_IO09
-#define BUTTON_PORT           GPIO2
-#define BUTTON_PIN            9
-#define BUTTON_STATE_ACTIVE   0
-
-// UART
-#define UART_PORT             LPUART1
-#define UART_RX_PINMUX        IOMUXC_GPIO_AD_B0_07_LPUART1_RX
-#define UART_TX_PINMUX        IOMUXC_GPIO_AD_B0_06_LPUART1_TX
-
-const uint8_t dcd_data[] = { 0x00 };
-
-void board_init(void)
-{
-  // Init clock
-  BOARD_BootClockRUN();
-  SystemCoreClockUpdate();
-
-  // Enable IOCON clock
-  CLOCK_EnableClock(kCLOCK_Iomuxc);
-
-#if CFG_TUSB_OS == OPT_OS_NONE
-  // 1ms tick timer
-  SysTick_Config(SystemCoreClock / 1000);
-#elif CFG_TUSB_OS == OPT_OS_FREERTOS
-  // If freeRTOS is used, IRQ priority is limit by max syscall ( smaller is higher )
-//  NVIC_SetPriority(USB0_IRQn, configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY );
-#endif
-
-  // LED
-  IOMUXC_SetPinMux( LED_PINMUX, 0U);
-  IOMUXC_SetPinConfig( LED_PINMUX, 0x10B0U);
-
-  gpio_pin_config_t led_config = { kGPIO_DigitalOutput, 0, kGPIO_NoIntmode };
-  GPIO_PinInit(LED_PORT, LED_PIN, &led_config);
-  board_led_write(true);
-
-  // Button
-  IOMUXC_SetPinMux( BUTTON_PINMUX, 0U);
-  IOMUXC_SetPinConfig(BUTTON_PINMUX, 0x01B0A0U);
-  gpio_pin_config_t button_config = { kGPIO_DigitalInput, 0, kGPIO_IntRisingEdge, };
-  GPIO_PinInit(BUTTON_PORT, BUTTON_PIN, &button_config);
-
-  // UART
-  IOMUXC_SetPinMux( UART_TX_PINMUX, 0U);
-  IOMUXC_SetPinMux( UART_RX_PINMUX, 0U);
-  IOMUXC_SetPinConfig( UART_TX_PINMUX, 0x10B0u);
-  IOMUXC_SetPinConfig( UART_RX_PINMUX, 0x10B0u);
-
-  lpuart_config_t uart_config;
-  LPUART_GetDefaultConfig(&uart_config);
-  uart_config.baudRate_Bps = CFG_BOARD_UART_BAUDRATE;
-  uart_config.enableTx = true;
-  uart_config.enableRx = true;
-  LPUART_Init(UART_PORT, &uart_config, (CLOCK_GetPllFreq(kCLOCK_PllUsb1) / 6U) / (CLOCK_GetDiv(kCLOCK_UartDiv) + 1U));
-
-  //------------- USB0 -------------//
-  // Clock
-  CLOCK_EnableUsbhs0PhyPllClock(kCLOCK_Usbphy480M, 480000000U);
-  CLOCK_EnableUsbhs0Clock(kCLOCK_Usb480M, 480000000U);
-
-  USBPHY_Type* usb_phy = USBPHY;
-
-  // Enable PHY support for Low speed device + LS via FS Hub
-  usb_phy->CTRL |= USBPHY_CTRL_SET_ENUTMILEVEL2_MASK | USBPHY_CTRL_SET_ENUTMILEVEL3_MASK;
-
-  // Enable all power for normal operation
-  usb_phy->PWD = 0;
-
-  // TX Timing
-  uint32_t phytx = usb_phy->TX;
-  phytx &= ~(USBPHY_TX_D_CAL_MASK | USBPHY_TX_TXCAL45DM_MASK | USBPHY_TX_TXCAL45DP_MASK);
-  phytx |= USBPHY_TX_D_CAL(0x0C) | USBPHY_TX_TXCAL45DP(0x06) | USBPHY_TX_TXCAL45DM(0x06);
-  usb_phy->TX = phytx;
-}
-
-//--------------------------------------------------------------------+
-// USB Interrupt Handler
-//--------------------------------------------------------------------+
-void USB_OTG1_IRQHandler(void)
-{
-  #if CFG_TUSB_RHPORT0_MODE & OPT_MODE_HOST
-    tuh_int_handler(0);
-  #endif
-
-  #if CFG_TUSB_RHPORT0_MODE & OPT_MODE_DEVICE
-    tud_int_handler(0);
-  #endif
-}
-
-//--------------------------------------------------------------------+
-// Board porting API
-//--------------------------------------------------------------------+
-
-void board_led_write(bool state)
-{
-  GPIO_PinWrite(LED_PORT, LED_PIN, state ? LED_STATE_ON : (1-LED_STATE_ON));
-}
-
-uint32_t board_button_read(void)
-{
-  // active low
-  return BUTTON_STATE_ACTIVE == GPIO_PinRead(BUTTON_PORT, BUTTON_PIN);
-}
-
-int board_uart_read(uint8_t* buf, int len)
-{
-  LPUART_ReadBlocking(UART_PORT, buf, len);
-  return len;
-}
-
-int board_uart_write(void const * buf, int len)
-{
-  LPUART_WriteBlocking(UART_PORT, (uint8_t*)buf, len);
-  return len;
-}
-
-#if CFG_TUSB_OS == OPT_OS_NONE
-volatile uint32_t system_ticks = 0;
-void SysTick_Handler(void)
-{
-  system_ticks++;
-}
-
-uint32_t board_millis(void)
-{
-  return system_ticks;
-}
-#endif
diff --git a/hw/bsp/mimxrt1020_evk/board.mk b/hw/bsp/mimxrt1020_evk/board.mk
deleted file mode 100644
index 66bcdf89b..000000000
--- a/hw/bsp/mimxrt1020_evk/board.mk
+++ /dev/null
@@ -1,53 +0,0 @@
-CFLAGS += \
-  -mthumb \
-  -mabi=aapcs \
-  -mcpu=cortex-m7 \
-  -mfloat-abi=hard \
-  -mfpu=fpv5-d16 \
-  -D__ARMVFP__=0 -D__ARMFPV5__=0\
-  -DCPU_MIMXRT1021DAG5A \
-  -DXIP_EXTERNAL_FLASH=1 \
-  -DXIP_BOOT_HEADER_ENABLE=1 \
-  -DCFG_TUSB_MCU=OPT_MCU_MIMXRT10XX
-
-# mcu driver cause following warnings
-CFLAGS += -Wno-error=unused-parameter
-
-MCU_DIR = hw/mcu/nxp/sdk/devices/MIMXRT1021
-
-# All source paths should be relative to the top level.
-LD_FILE = $(MCU_DIR)/gcc/MIMXRT1021xxxxx_flexspi_nor.ld
-
-SRC_C += \
-	$(MCU_DIR)/system_MIMXRT1021.c \
-	$(MCU_DIR)/xip/fsl_flexspi_nor_boot.c \
-	$(MCU_DIR)/project_template/clock_config.c \
-	$(MCU_DIR)/drivers/fsl_clock.c \
-	$(MCU_DIR)/drivers/fsl_gpio.c \
-	$(MCU_DIR)/drivers/fsl_common.c \
-	$(MCU_DIR)/drivers/fsl_lpuart.c
-
-INC += \
-	$(TOP)/hw/bsp/$(BOARD) \
-	$(TOP)/$(MCU_DIR)/../../CMSIS/Include \
-	$(TOP)/$(MCU_DIR) \
-	$(TOP)/$(MCU_DIR)/drivers \
-	$(TOP)/$(MCU_DIR)/project_template \
-
-SRC_S += $(MCU_DIR)/gcc/startup_MIMXRT1021.S
-
-# For TinyUSB port source
-VENDOR = nxp
-CHIP_FAMILY = transdimension
-
-# For freeRTOS port source
-FREERTOS_PORT = ARM_CM7/r0p1
-
-# For flash-jlink target
-JLINK_DEVICE = MIMXRT1021DAG5A
-
-# For flash-pyocd target
-PYOCD_TARGET = mimxrt1020
-
-# flash using pyocd
-flash: flash-pyocd
diff --git a/hw/bsp/mimxrt1020_evk/mimxrt1020_evk.c b/hw/bsp/mimxrt1020_evk/mimxrt1020_evk.c
deleted file mode 100644
index 273f3a0c9..000000000
--- a/hw/bsp/mimxrt1020_evk/mimxrt1020_evk.c
+++ /dev/null
@@ -1,169 +0,0 @@
-/* 
- * The MIT License (MIT)
- *
- * Copyright (c) 2018, hathach (tinyusb.org)
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- *
- * This file is part of the TinyUSB stack.
- */
-
-#include "../board.h"
-#include "fsl_device_registers.h"
-#include "fsl_gpio.h"
-#include "fsl_iomuxc.h"
-#include "fsl_clock.h"
-#include "fsl_lpuart.h"
-
-#include "clock_config.h"
-
-#define LED_PINMUX            IOMUXC_GPIO_AD_B0_05_GPIO1_IO05
-#define LED_PORT              GPIO1
-#define LED_PIN               5
-#define LED_STATE_ON          0
-
-// SW8 button
-#define BUTTON_PINMUX         IOMUXC_SNVS_WAKEUP_GPIO5_IO00
-#define BUTTON_PORT           GPIO5
-#define BUTTON_PIN            0
-#define BUTTON_STATE_ACTIVE   0
-
-// UART
-#define UART_PORT             LPUART1
-#define UART_RX_PINMUX        IOMUXC_GPIO_AD_B0_07_LPUART1_RX
-#define UART_TX_PINMUX        IOMUXC_GPIO_AD_B0_06_LPUART1_TX
-
-const uint8_t dcd_data[] = { 0x00 };
-
-void board_init(void)
-{
-  // Init clock
-  BOARD_BootClockRUN();
-  SystemCoreClockUpdate();
-
-  // Enable IOCON clock
-  CLOCK_EnableClock(kCLOCK_Iomuxc);
-
-#if CFG_TUSB_OS == OPT_OS_NONE
-  // 1ms tick timer
-  SysTick_Config(SystemCoreClock / 1000);
-#elif CFG_TUSB_OS == OPT_OS_FREERTOS
-  // If freeRTOS is used, IRQ priority is limit by max syscall ( smaller is higher )
-//  NVIC_SetPriority(USB0_IRQn, configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY );
-#endif
-
-  // LED
-  IOMUXC_SetPinMux( LED_PINMUX, 0U);
-  IOMUXC_SetPinConfig( LED_PINMUX, 0x10B0U);
-
-  gpio_pin_config_t led_config = { kGPIO_DigitalOutput, 0, kGPIO_NoIntmode };
-  GPIO_PinInit(LED_PORT, LED_PIN, &led_config);
-  board_led_write(true);
-
-  // Button
-  IOMUXC_SetPinMux( BUTTON_PINMUX, 0U);
-  gpio_pin_config_t button_config = { kGPIO_DigitalInput, 0, kGPIO_IntRisingEdge, };
-  GPIO_PinInit(BUTTON_PORT, BUTTON_PIN, &button_config);
-
-  // UART
-  IOMUXC_SetPinMux( UART_TX_PINMUX, 0U);
-  IOMUXC_SetPinMux( UART_RX_PINMUX, 0U);
-  IOMUXC_SetPinConfig( UART_TX_PINMUX, 0x10B0u);
-  IOMUXC_SetPinConfig( UART_RX_PINMUX, 0x10B0u);
-
-  lpuart_config_t uart_config;
-  LPUART_GetDefaultConfig(&uart_config);
-  uart_config.baudRate_Bps = CFG_BOARD_UART_BAUDRATE;
-  uart_config.enableTx = true;
-  uart_config.enableRx = true;
-  LPUART_Init(UART_PORT, &uart_config, (CLOCK_GetPllFreq(kCLOCK_PllUsb1) / 6U) / (CLOCK_GetDiv(kCLOCK_UartDiv) + 1U));
-
-  //------------- USB0 -------------//
-  // Clock
-  CLOCK_EnableUsbhs0PhyPllClock(kCLOCK_Usbphy480M, 480000000U);
-  CLOCK_EnableUsbhs0Clock(kCLOCK_Usb480M, 480000000U);
-
-  USBPHY_Type* usb_phy = USBPHY;
-
-  // Enable PHY support for Low speed device + LS via FS Hub
-  usb_phy->CTRL |= USBPHY_CTRL_SET_ENUTMILEVEL2_MASK | USBPHY_CTRL_SET_ENUTMILEVEL3_MASK;
-
-  // Enable all power for normal operation
-  usb_phy->PWD = 0;
-
-  // TX Timing
-  uint32_t phytx = usb_phy->TX;
-  phytx &= ~(USBPHY_TX_D_CAL_MASK | USBPHY_TX_TXCAL45DM_MASK | USBPHY_TX_TXCAL45DP_MASK);
-  phytx |= USBPHY_TX_D_CAL(0x0C) | USBPHY_TX_TXCAL45DP(0x06) | USBPHY_TX_TXCAL45DM(0x06);
-  usb_phy->TX = phytx;
-}
-
-//--------------------------------------------------------------------+
-// USB Interrupt Handler
-//--------------------------------------------------------------------+
-void USB_OTG1_IRQHandler(void)
-{
-  #if CFG_TUSB_RHPORT0_MODE & OPT_MODE_HOST
-    tuh_int_handler(0);
-  #endif
-
-  #if CFG_TUSB_RHPORT0_MODE & OPT_MODE_DEVICE
-    tud_int_handler(0);
-  #endif
-}
-
-//--------------------------------------------------------------------+
-// Board porting API
-//--------------------------------------------------------------------+
-
-void board_led_write(bool state)
-{
-  GPIO_PinWrite(LED_PORT, LED_PIN, state ? LED_STATE_ON : (1-LED_STATE_ON));
-}
-
-uint32_t board_button_read(void)
-{
-  // active low
-  return BUTTON_STATE_ACTIVE == GPIO_PinRead(BUTTON_PORT, BUTTON_PIN);
-}
-
-int board_uart_read(uint8_t* buf, int len)
-{
-  LPUART_ReadBlocking(UART_PORT, buf, len);
-  return len;
-}
-
-int board_uart_write(void const * buf, int len)
-{
-  LPUART_WriteBlocking(UART_PORT, (uint8_t*)buf, len);
-  return len;
-}
-
-#if CFG_TUSB_OS == OPT_OS_NONE
-volatile uint32_t system_ticks = 0;
-void SysTick_Handler(void)
-{
-  system_ticks++;
-}
-
-uint32_t board_millis(void)
-{
-  return system_ticks;
-}
-#endif
diff --git a/hw/bsp/mimxrt1050_evkb/board.mk b/hw/bsp/mimxrt1050_evkb/board.mk
deleted file mode 100644
index 123e2ea82..000000000
--- a/hw/bsp/mimxrt1050_evkb/board.mk
+++ /dev/null
@@ -1,50 +0,0 @@
-CFLAGS += \
-  -mthumb \
-  -mabi=aapcs \
-  -mcpu=cortex-m7 \
-  -mfloat-abi=hard \
-  -mfpu=fpv5-d16 \
-  -D__ARMVFP__=0 -D__ARMFPV5__=0\
-  -DCPU_MIMXRT1052DVL6B \
-  -DXIP_EXTERNAL_FLASH=1 \
-  -DXIP_BOOT_HEADER_ENABLE=1 \
-  -DCFG_TUSB_MCU=OPT_MCU_MIMXRT10XX
-
-# mcu driver cause following warnings
-CFLAGS += -Wno-error=unused-parameter
-
-MCU_DIR = hw/mcu/nxp/sdk/devices/MIMXRT1052
-
-# All source paths should be relative to the top level.
-LD_FILE = $(MCU_DIR)/gcc/MIMXRT1052xxxxx_flexspi_nor.ld
-
-SRC_C += \
-	$(MCU_DIR)/system_MIMXRT1052.c \
-	$(MCU_DIR)/xip/fsl_flexspi_nor_boot.c \
-	$(MCU_DIR)/project_template/clock_config.c \
-	$(MCU_DIR)/drivers/fsl_clock.c \
-	$(MCU_DIR)/drivers/fsl_gpio.c \
-	$(MCU_DIR)/drivers/fsl_common.c \
-	$(MCU_DIR)/drivers/fsl_lpuart.c
-
-INC += \
-	$(TOP)/hw/bsp/$(BOARD) \
-	$(TOP)/$(MCU_DIR)/../../CMSIS/Include \
-	$(TOP)/$(MCU_DIR) \
-	$(TOP)/$(MCU_DIR)/drivers \
-	$(TOP)/$(MCU_DIR)/project_template \
-
-SRC_S += $(MCU_DIR)/gcc/startup_MIMXRT1052.S
-
-# For TinyUSB port source
-VENDOR = nxp
-CHIP_FAMILY = transdimension
-
-# For freeRTOS port source
-FREERTOS_PORT = ARM_CM7/r0p1
-
-# For flash-pyocd target
-PYOCD_TARGET = mimxrt1050
-
-# flash using pyocd
-flash: flash-pyocd
diff --git a/hw/bsp/mimxrt1050_evkb/mimxrt1050_evkb.c b/hw/bsp/mimxrt1050_evkb/mimxrt1050_evkb.c
deleted file mode 100644
index 1042bcfe7..000000000
--- a/hw/bsp/mimxrt1050_evkb/mimxrt1050_evkb.c
+++ /dev/null
@@ -1,184 +0,0 @@
-/* 
- * The MIT License (MIT)
- *
- * Copyright (c) 2018, hathach (tinyusb.org)
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- *
- * This file is part of the TinyUSB stack.
- */
-
-#include "../board.h"
-#include "fsl_device_registers.h"
-#include "fsl_gpio.h"
-#include "fsl_iomuxc.h"
-#include "fsl_clock.h"
-#include "fsl_lpuart.h"
-
-#include "clock_config.h"
-
-#define LED_PINMUX            IOMUXC_GPIO_AD_B0_09_GPIO1_IO09
-#define LED_PORT              GPIO1
-#define LED_PIN               9
-#define LED_STATE_ON          0
-
-// SW8 button
-#define BUTTON_PINMUX         IOMUXC_SNVS_WAKEUP_GPIO5_IO00
-#define BUTTON_PORT           GPIO5
-#define BUTTON_PIN            0
-#define BUTTON_STATE_ACTIVE   0
-
-// UART
-#define UART_PORT             LPUART1
-#define UART_RX_PINMUX        IOMUXC_GPIO_AD_B0_13_LPUART1_RX
-#define UART_TX_PINMUX        IOMUXC_GPIO_AD_B0_12_LPUART1_TX
-
-const uint8_t dcd_data[] = { 0x00 };
-
-void board_init(void)
-{
-  // Init clock
-  BOARD_BootClockRUN();
-  SystemCoreClockUpdate();
-
-  // Enable IOCON clock
-  CLOCK_EnableClock(kCLOCK_Iomuxc);
-
-#if CFG_TUSB_OS == OPT_OS_NONE
-  // 1ms tick timer
-  SysTick_Config(SystemCoreClock / 1000);
-#elif CFG_TUSB_OS == OPT_OS_FREERTOS
-  // If freeRTOS is used, IRQ priority is limit by max syscall ( smaller is higher )
-//  NVIC_SetPriority(USB0_IRQn, configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY );
-#endif
-
-  // LED
-  IOMUXC_SetPinMux( LED_PINMUX, 0U);
-  IOMUXC_SetPinConfig( LED_PINMUX, 0x10B0U);
-
-  gpio_pin_config_t led_config = { kGPIO_DigitalOutput, 0, kGPIO_NoIntmode };
-  GPIO_PinInit(LED_PORT, LED_PIN, &led_config);
-  board_led_write(true);
-
-  // Button
-  IOMUXC_SetPinMux( BUTTON_PINMUX, 0U);
-  gpio_pin_config_t button_config = { kGPIO_DigitalInput, 0, kGPIO_IntRisingEdge, };
-  GPIO_PinInit(BUTTON_PORT, BUTTON_PIN, &button_config);
-
-  // UART
-  IOMUXC_SetPinMux( UART_TX_PINMUX, 0U);
-  IOMUXC_SetPinMux( UART_RX_PINMUX, 0U);
-  IOMUXC_SetPinConfig( UART_TX_PINMUX, 0x10B0u);
-  IOMUXC_SetPinConfig( UART_RX_PINMUX, 0x10B0u);
-
-  lpuart_config_t uart_config;
-  LPUART_GetDefaultConfig(&uart_config);
-  uart_config.baudRate_Bps = CFG_BOARD_UART_BAUDRATE;
-  uart_config.enableTx = true;
-  uart_config.enableRx = true;
-  LPUART_Init(UART_PORT, &uart_config, (CLOCK_GetPllFreq(kCLOCK_PllUsb1) / 6U) / (CLOCK_GetDiv(kCLOCK_UartDiv) + 1U));
-
-  //------------- USB0 -------------//
-  // Clock
-  CLOCK_EnableUsbhs0PhyPllClock(kCLOCK_Usbphy480M, 480000000U);
-  CLOCK_EnableUsbhs0Clock(kCLOCK_Usb480M, 480000000U);
-
-  USBPHY_Type* usb_phy = USBPHY1;
-
-  // Enable PHY support for Low speed device + LS via FS Hub
-  usb_phy->CTRL |= USBPHY_CTRL_SET_ENUTMILEVEL2_MASK | USBPHY_CTRL_SET_ENUTMILEVEL3_MASK;
-
-  // Enable all power for normal operation
-  usb_phy->PWD = 0;
-
-  // TX Timing
-  uint32_t phytx = usb_phy->TX;
-  phytx &= ~(USBPHY_TX_D_CAL_MASK | USBPHY_TX_TXCAL45DM_MASK | USBPHY_TX_TXCAL45DP_MASK);
-  phytx |= USBPHY_TX_D_CAL(0x0C) | USBPHY_TX_TXCAL45DP(0x06) | USBPHY_TX_TXCAL45DM(0x06);
-  usb_phy->TX = phytx;
-
-  // USB1
-//  CLOCK_EnableUsbhs1PhyPllClock(kCLOCK_Usbphy480M, 480000000U);
-//  CLOCK_EnableUsbhs1Clock(kCLOCK_Usb480M, 480000000U);
-}
-
-//--------------------------------------------------------------------+
-// USB Interrupt Handler
-//--------------------------------------------------------------------+
-void USB_OTG1_IRQHandler(void)
-{
-  #if CFG_TUSB_RHPORT0_MODE & OPT_MODE_HOST
-    tuh_int_handler(0);
-  #endif
-
-  #if CFG_TUSB_RHPORT0_MODE & OPT_MODE_DEVICE
-    tud_int_handler(0);
-  #endif
-}
-
-void USB_OTG2_IRQHandler(void)
-{
-  #if CFG_TUSB_RHPORT1_MODE & OPT_MODE_HOST
-    tuh_int_handler(1);
-  #endif
-
-  #if CFG_TUSB_RHPORT1_MODE & OPT_MODE_DEVICE
-    tud_int_handler(1);
-  #endif
-}
-
-//--------------------------------------------------------------------+
-// Board porting API
-//--------------------------------------------------------------------+
-
-void board_led_write(bool state)
-{
-  GPIO_PinWrite(LED_PORT, LED_PIN, state ? LED_STATE_ON : (1-LED_STATE_ON));
-}
-
-uint32_t board_button_read(void)
-{
-  // active low
-  return BUTTON_STATE_ACTIVE == GPIO_PinRead(BUTTON_PORT, BUTTON_PIN);
-}
-
-int board_uart_read(uint8_t* buf, int len)
-{
-  LPUART_ReadBlocking(UART_PORT, buf, len);
-  return len;
-}
-
-int board_uart_write(void const * buf, int len)
-{
-  LPUART_WriteBlocking(UART_PORT, (uint8_t*)buf, len);
-  return len;
-}
-
-#if CFG_TUSB_OS == OPT_OS_NONE
-volatile uint32_t system_ticks = 0;
-void SysTick_Handler(void)
-{
-  system_ticks++;
-}
-
-uint32_t board_millis(void)
-{
-  return system_ticks;
-}
-#endif
diff --git a/hw/bsp/mimxrt1060_evk/board.mk b/hw/bsp/mimxrt1060_evk/board.mk
deleted file mode 100644
index 5c93e1cdf..000000000
--- a/hw/bsp/mimxrt1060_evk/board.mk
+++ /dev/null
@@ -1,53 +0,0 @@
-CFLAGS += \
-  -mthumb \
-  -mabi=aapcs \
-  -mcpu=cortex-m7 \
-  -mfloat-abi=hard \
-  -mfpu=fpv5-d16 \
-  -D__ARMVFP__=0 -D__ARMFPV5__=0\
-  -DCPU_MIMXRT1062DVL6A \
-  -DXIP_EXTERNAL_FLASH=1 \
-  -DXIP_BOOT_HEADER_ENABLE=1 \
-  -DCFG_TUSB_MCU=OPT_MCU_MIMXRT10XX
-
-# mcu driver cause following warnings
-CFLAGS += -Wno-error=unused-parameter
-
-MCU_DIR = hw/mcu/nxp/sdk/devices/MIMXRT1062
-
-# All source paths should be relative to the top level.
-LD_FILE = $(MCU_DIR)/gcc/MIMXRT1062xxxxx_flexspi_nor.ld
-
-SRC_C += \
-	$(MCU_DIR)/system_MIMXRT1062.c \
-	$(MCU_DIR)/xip/fsl_flexspi_nor_boot.c \
-	$(MCU_DIR)/project_template/clock_config.c \
-	$(MCU_DIR)/drivers/fsl_clock.c \
-	$(MCU_DIR)/drivers/fsl_gpio.c \
-	$(MCU_DIR)/drivers/fsl_common.c \
-	$(MCU_DIR)/drivers/fsl_lpuart.c
-
-INC += \
-	$(TOP)/hw/bsp/$(BOARD) \
-	$(TOP)/$(MCU_DIR)/../../CMSIS/Include \
-	$(TOP)/$(MCU_DIR) \
-	$(TOP)/$(MCU_DIR)/drivers \
-	$(TOP)/$(MCU_DIR)/project_template \
-
-SRC_S += $(MCU_DIR)/gcc/startup_MIMXRT1062.S
-
-# For TinyUSB port source
-VENDOR = nxp
-CHIP_FAMILY = transdimension
-
-# For freeRTOS port source
-FREERTOS_PORT = ARM_CM7/r0p1
-
-# For flash-jlink target
-JLINK_DEVICE = MIMXRT1062xxx6A
-
-# For flash-pyocd target
-PYOCD_TARGET = mimxrt1060
-
-# flash using pyocd
-flash: flash-pyocd
diff --git a/hw/bsp/mimxrt1064_evk/board.mk b/hw/bsp/mimxrt1064_evk/board.mk
deleted file mode 100644
index f6a277497..000000000
--- a/hw/bsp/mimxrt1064_evk/board.mk
+++ /dev/null
@@ -1,53 +0,0 @@
-CFLAGS += \
-  -mthumb \
-  -mabi=aapcs \
-  -mcpu=cortex-m7 \
-  -mfloat-abi=hard \
-  -mfpu=fpv5-d16 \
-  -D__ARMVFP__=0 -D__ARMFPV5__=0\
-  -DCPU_MIMXRT1064DVL6A \
-  -DXIP_EXTERNAL_FLASH=1 \
-  -DXIP_BOOT_HEADER_ENABLE=1 \
-  -DCFG_TUSB_MCU=OPT_MCU_MIMXRT10XX
-
-# mcu driver cause following warnings
-CFLAGS += -Wno-error=unused-parameter
-
-MCU_DIR = hw/mcu/nxp/sdk/devices/MIMXRT1064
-
-# All source paths should be relative to the top level.
-LD_FILE = $(MCU_DIR)/gcc/MIMXRT1064xxxxx_flexspi_nor.ld
-
-SRC_C += \
-	$(MCU_DIR)/system_MIMXRT1064.c \
-	$(MCU_DIR)/xip/fsl_flexspi_nor_boot.c \
-	$(MCU_DIR)/project_template/clock_config.c \
-	$(MCU_DIR)/drivers/fsl_clock.c \
-	$(MCU_DIR)/drivers/fsl_gpio.c \
-	$(MCU_DIR)/drivers/fsl_common.c \
-	$(MCU_DIR)/drivers/fsl_lpuart.c
-
-INC += \
-	$(TOP)/hw/bsp/$(BOARD) \
-	$(TOP)/$(MCU_DIR)/../../CMSIS/Include \
-	$(TOP)/$(MCU_DIR) \
-	$(TOP)/$(MCU_DIR)/drivers \
-	$(TOP)/$(MCU_DIR)/project_template \
-
-SRC_S += $(MCU_DIR)/gcc/startup_MIMXRT1064.S
-
-# For TinyUSB port source
-VENDOR = nxp
-CHIP_FAMILY = transdimension
-
-# For freeRTOS port source
-FREERTOS_PORT = ARM_CM7/r0p1
-
-# For flash-jlink target
-JLINK_DEVICE = MIMXRT1064xxx6A
-
-# For flash-pyocd target
-PYOCD_TARGET = mimxrt1064
-
-# flash using pyocd
-flash: flash-pyocd
diff --git a/hw/bsp/mimxrt1064_evk/mimxrt1064_evk.c b/hw/bsp/mimxrt1064_evk/mimxrt1064_evk.c
deleted file mode 100644
index 1042bcfe7..000000000
--- a/hw/bsp/mimxrt1064_evk/mimxrt1064_evk.c
+++ /dev/null
@@ -1,184 +0,0 @@
-/* 
- * The MIT License (MIT)
- *
- * Copyright (c) 2018, hathach (tinyusb.org)
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- *
- * This file is part of the TinyUSB stack.
- */
-
-#include "../board.h"
-#include "fsl_device_registers.h"
-#include "fsl_gpio.h"
-#include "fsl_iomuxc.h"
-#include "fsl_clock.h"
-#include "fsl_lpuart.h"
-
-#include "clock_config.h"
-
-#define LED_PINMUX            IOMUXC_GPIO_AD_B0_09_GPIO1_IO09
-#define LED_PORT              GPIO1
-#define LED_PIN               9
-#define LED_STATE_ON          0
-
-// SW8 button
-#define BUTTON_PINMUX         IOMUXC_SNVS_WAKEUP_GPIO5_IO00
-#define BUTTON_PORT           GPIO5
-#define BUTTON_PIN            0
-#define BUTTON_STATE_ACTIVE   0
-
-// UART
-#define UART_PORT             LPUART1
-#define UART_RX_PINMUX        IOMUXC_GPIO_AD_B0_13_LPUART1_RX
-#define UART_TX_PINMUX        IOMUXC_GPIO_AD_B0_12_LPUART1_TX
-
-const uint8_t dcd_data[] = { 0x00 };
-
-void board_init(void)
-{
-  // Init clock
-  BOARD_BootClockRUN();
-  SystemCoreClockUpdate();
-
-  // Enable IOCON clock
-  CLOCK_EnableClock(kCLOCK_Iomuxc);
-
-#if CFG_TUSB_OS == OPT_OS_NONE
-  // 1ms tick timer
-  SysTick_Config(SystemCoreClock / 1000);
-#elif CFG_TUSB_OS == OPT_OS_FREERTOS
-  // If freeRTOS is used, IRQ priority is limit by max syscall ( smaller is higher )
-//  NVIC_SetPriority(USB0_IRQn, configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY );
-#endif
-
-  // LED
-  IOMUXC_SetPinMux( LED_PINMUX, 0U);
-  IOMUXC_SetPinConfig( LED_PINMUX, 0x10B0U);
-
-  gpio_pin_config_t led_config = { kGPIO_DigitalOutput, 0, kGPIO_NoIntmode };
-  GPIO_PinInit(LED_PORT, LED_PIN, &led_config);
-  board_led_write(true);
-
-  // Button
-  IOMUXC_SetPinMux( BUTTON_PINMUX, 0U);
-  gpio_pin_config_t button_config = { kGPIO_DigitalInput, 0, kGPIO_IntRisingEdge, };
-  GPIO_PinInit(BUTTON_PORT, BUTTON_PIN, &button_config);
-
-  // UART
-  IOMUXC_SetPinMux( UART_TX_PINMUX, 0U);
-  IOMUXC_SetPinMux( UART_RX_PINMUX, 0U);
-  IOMUXC_SetPinConfig( UART_TX_PINMUX, 0x10B0u);
-  IOMUXC_SetPinConfig( UART_RX_PINMUX, 0x10B0u);
-
-  lpuart_config_t uart_config;
-  LPUART_GetDefaultConfig(&uart_config);
-  uart_config.baudRate_Bps = CFG_BOARD_UART_BAUDRATE;
-  uart_config.enableTx = true;
-  uart_config.enableRx = true;
-  LPUART_Init(UART_PORT, &uart_config, (CLOCK_GetPllFreq(kCLOCK_PllUsb1) / 6U) / (CLOCK_GetDiv(kCLOCK_UartDiv) + 1U));
-
-  //------------- USB0 -------------//
-  // Clock
-  CLOCK_EnableUsbhs0PhyPllClock(kCLOCK_Usbphy480M, 480000000U);
-  CLOCK_EnableUsbhs0Clock(kCLOCK_Usb480M, 480000000U);
-
-  USBPHY_Type* usb_phy = USBPHY1;
-
-  // Enable PHY support for Low speed device + LS via FS Hub
-  usb_phy->CTRL |= USBPHY_CTRL_SET_ENUTMILEVEL2_MASK | USBPHY_CTRL_SET_ENUTMILEVEL3_MASK;
-
-  // Enable all power for normal operation
-  usb_phy->PWD = 0;
-
-  // TX Timing
-  uint32_t phytx = usb_phy->TX;
-  phytx &= ~(USBPHY_TX_D_CAL_MASK | USBPHY_TX_TXCAL45DM_MASK | USBPHY_TX_TXCAL45DP_MASK);
-  phytx |= USBPHY_TX_D_CAL(0x0C) | USBPHY_TX_TXCAL45DP(0x06) | USBPHY_TX_TXCAL45DM(0x06);
-  usb_phy->TX = phytx;
-
-  // USB1
-//  CLOCK_EnableUsbhs1PhyPllClock(kCLOCK_Usbphy480M, 480000000U);
-//  CLOCK_EnableUsbhs1Clock(kCLOCK_Usb480M, 480000000U);
-}
-
-//--------------------------------------------------------------------+
-// USB Interrupt Handler
-//--------------------------------------------------------------------+
-void USB_OTG1_IRQHandler(void)
-{
-  #if CFG_TUSB_RHPORT0_MODE & OPT_MODE_HOST
-    tuh_int_handler(0);
-  #endif
-
-  #if CFG_TUSB_RHPORT0_MODE & OPT_MODE_DEVICE
-    tud_int_handler(0);
-  #endif
-}
-
-void USB_OTG2_IRQHandler(void)
-{
-  #if CFG_TUSB_RHPORT1_MODE & OPT_MODE_HOST
-    tuh_int_handler(1);
-  #endif
-
-  #if CFG_TUSB_RHPORT1_MODE & OPT_MODE_DEVICE
-    tud_int_handler(1);
-  #endif
-}
-
-//--------------------------------------------------------------------+
-// Board porting API
-//--------------------------------------------------------------------+
-
-void board_led_write(bool state)
-{
-  GPIO_PinWrite(LED_PORT, LED_PIN, state ? LED_STATE_ON : (1-LED_STATE_ON));
-}
-
-uint32_t board_button_read(void)
-{
-  // active low
-  return BUTTON_STATE_ACTIVE == GPIO_PinRead(BUTTON_PORT, BUTTON_PIN);
-}
-
-int board_uart_read(uint8_t* buf, int len)
-{
-  LPUART_ReadBlocking(UART_PORT, buf, len);
-  return len;
-}
-
-int board_uart_write(void const * buf, int len)
-{
-  LPUART_WriteBlocking(UART_PORT, (uint8_t*)buf, len);
-  return len;
-}
-
-#if CFG_TUSB_OS == OPT_OS_NONE
-volatile uint32_t system_ticks = 0;
-void SysTick_Handler(void)
-{
-  system_ticks++;
-}
-
-uint32_t board_millis(void)
-{
-  return system_ticks;
-}
-#endif