Split out mcu_selection to platform (#19701)

4 files changed, 922 insertions, 922 deletions

diff --git a/builddefs/build_keyboard.mk b/builddefs/build_keyboard.mk
index 6d355c9b85..def0be69b6 100644
--- a/builddefs/build_keyboard.mk
+++ b/builddefs/build_keyboard.mk
@@ -182,7 +182,8 @@ endif
 
 include $(BUILDDEFS_PATH)/converters.mk
 
-include $(BUILDDEFS_PATH)/mcu_selection.mk
+MCU_ORIG := $(MCU)
+include $(wildcard $(PLATFORM_PATH)/*/mcu_selection.mk)
 
 # PLATFORM_KEY should be detected in info.json via key 'processor' (or rules.mk 'MCU')
 ifeq ($(PLATFORM_KEY),)
diff --git a/builddefs/mcu_selection.mk b/builddefs/mcu_selection.mk
index 1d05902fab..139597f9cb 100644
--- a/builddefs/mcu_selection.mk
+++ b/builddefs/mcu_selection.mk
@@ -1,923 +1,2 @@
-MCU_ORIG := $(MCU)
 
-ifneq ($(findstring MKL26Z64, $(MCU)),)
-  # Cortex version
-  MCU = cortex-m0plus
 
-  # ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7
-  ARMV = 6
-
-  ## chip/board settings
-  # - the next two should match the directories in
-  #   <chibios[-contrib]>/os/hal/ports/$(MCU_PORT_NAME)/$(MCU_SERIES)
-  #   OR
-  #   <chibios[-contrib]>/os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES)
-  MCU_FAMILY = KINETIS
-  MCU_SERIES = KL2x
-
-  # Linker script to use
-  # - it should exist either in <chibios>/os/common/ports/ARMCMx/compilers/GCC/ld/
-  #   or <keyboard_dir>/ld/
-  MCU_LDSCRIPT ?= MKL26Z64
-
-  # Startup code to use
-  #  - it should exist in <chibios>/os/common/ports/ARMCMx/compilers/GCC/mk/
-  MCU_STARTUP ?= kl2x
-
-  # Board: it should exist either in <chibios>/os/hal/boards/,
-  # <keyboard_dir>/boards/, or drivers/boards/
-  BOARD ?= PJRC_TEENSY_LC
-endif
-
-ifneq ($(findstring MK20DX128, $(MCU)),)
-  # Cortex version
-  MCU = cortex-m4
-
-  # ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7
-  ARMV = 7
-
-  ## chip/board settings
-  # - the next two should match the directories in
-  #   <chibios[-contrib]>/os/hal/ports/$(MCU_PORT_NAME)/$(MCU_SERIES)
-  #   OR
-  #   <chibios[-contrib]>/os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES)
-  MCU_FAMILY = KINETIS
-  MCU_SERIES = K20x
-
-  # Linker script to use
-  # - it should exist either in <chibios>/os/common/ports/ARMCMx/compilers/GCC/ld/
-  #   or <keyboard_dir>/ld/
-  MCU_LDSCRIPT ?= MK20DX128
-
-  # Startup code to use
-  #  - it should exist in <chibios>/os/common/ports/ARMCMx/compilers/GCC/mk/
-  MCU_STARTUP ?= k20x5
-
-  # Board: it should exist either in <chibios>/os/hal/boards/,
-  # <keyboard_dir>/boards/, or drivers/boards/
-  BOARD ?= PJRC_TEENSY_3
-endif
-
-ifneq ($(findstring MK20DX256, $(MCU)),)
-  # Cortex version
-  MCU = cortex-m4
-
-  # ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7
-  ARMV = 7
-
-  ## chip/board settings
-  # - the next two should match the directories in
-  #   <chibios[-contrib]>/os/hal/ports/$(MCU_PORT_NAME)/$(MCU_SERIES)
-  #   OR
-  #   <chibios[-contrib]>/os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES)
-  MCU_FAMILY = KINETIS
-  MCU_SERIES = K20x
-
-  # Linker script to use
-  # - it should exist either in <chibios>/os/common/ports/ARMCMx/compilers/GCC/ld/
-  #   or <keyboard_dir>/ld/
-  MCU_LDSCRIPT ?= MK20DX256
-
-  # Startup code to use
-  #  - it should exist in <chibios>/os/common/ports/ARMCMx/compilers/GCC/mk/
-  MCU_STARTUP ?= k20x7
-
-  # Board: it should exist either in <chibios>/os/hal/boards/,
-  # <keyboard_dir>/boards/, or drivers/boards/
-  BOARD ?= PJRC_TEENSY_3_1
-endif
-
-ifneq ($(findstring MK64FX512, $(MCU)),)
-  # Cortex version
-  MCU = cortex-m4
-
-  # ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7
-  ARMV = 7
-
-  ## chip/board settings
-  # - the next two should match the directories in
-  #   <chibios>/os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES)
-  MCU_FAMILY = KINETIS
-  MCU_SERIES = K60x
-
-  # Linker script to use
-  # - it should exist either in <chibios>/os/common/ports/ARMCMx/compilers/GCC/ld/
-  #   or <keyboard_dir>/ld/
-  MCU_LDSCRIPT ?= MK64FX512
-
-  # Startup code to use
-  #  - it should exist in <chibios>/os/common/startup/ARMCMx/compilers/GCC/mk/
-  MCU_STARTUP ?= k60x
-
-  # Board: it should exist either in <chibios>/os/hal/boards/,
-  # <keyboard_dir>/boards/, or drivers/boards/
-  BOARD ?= PJRC_TEENSY_3_5
-endif
-
-ifneq ($(findstring MK66FX1M0, $(MCU)),)
-  # Cortex version
-  MCU = cortex-m4
-
-  # ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7
-  ARMV = 7
-
-  ## chip/board settings
-  # - the next two should match the directories in
-  #   <chibios[-contrib]>/os/hal/ports/$(MCU_PORT_NAME)/$(MCU_SERIES)
-  #   OR
-  #   <chibios[-contrib]>/os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES)
-  MCU_FAMILY = KINETIS
-  MCU_SERIES = MK66F18
-
-  # Linker script to use
-  # - it should exist either in <chibios>/os/common/ports/ARMCMx/compilers/GCC/ld/
-  #   or <keyboard_dir>/ld/
-  MCU_LDSCRIPT ?= MK66FX1M0
-
-  # Startup code to use
-  #  - it should exist in <chibios>/os/common/startup/ARMCMx/compilers/GCC/mk/
-  MCU_STARTUP ?= MK66F18
-
-  # Board: it should exist either in <chibios>/os/hal/boards/,
-  # <keyboard_dir>/boards/, or drivers/boards/
-  BOARD ?= PJRC_TEENSY_3_6
-endif
-
-ifneq ($(findstring RP2040, $(MCU)),)
-  # Cortex version
-  MCU = cortex-m0plus
-
-  # ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7
-  CHIBIOS_PORT = ARMv6-M-RP2
-
-  ## chip/board settings
-  # - the next two should match the directories in
-  #   <chibios[-contrib]>/os/hal/ports/$(MCU_PORT_NAME)/$(MCU_SERIES)
-  #   OR
-  #   <chibios[-contrib]>/os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES)
-  MCU_FAMILY = RP
-  MCU_SERIES = RP2040
-
-  # Linker script to use
-  # - it should exist either in <chibios>/os/common/ports/ARMCMx/compilers/GCC/ld/
-  #   or <keyboard_dir>/ld/
-  STARTUPLD_CONTRIB = $(CHIBIOS_CONTRIB)/os/common/startup/ARMCMx/compilers/GCC/ld
-  MCU_LDSCRIPT ?= RP2040_FLASH_TIMECRIT
-  LDFLAGS += -L $(STARTUPLD_CONTRIB)
-
-  # Startup code to use
-  #  - it should exist in <chibios>/os/common/startup/ARMCMx/compilers/GCC/mk/
-  MCU_STARTUP ?= rp2040
-
-  # Board: it should exist either in <chibios>/os/hal/boards/,
-  # <keyboard_dir>/boards/, or drivers/boards/
-  BOARD ?= GENERIC_PROMICRO_RP2040
-
-  # Default UF2 Bootloader settings
-  UF2_FAMILY ?= RP2040
-  FIRMWARE_FORMAT ?= uf2
-endif
-
-ifneq ($(findstring STM32F042, $(MCU)),)
-  # Cortex version
-  MCU = cortex-m0
-
-  # ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7
-  ARMV = 6
-
-  ## chip/board settings
-  # - the next two should match the directories in
-  #   <chibios[-contrib]>/os/hal/ports/$(MCU_PORT_NAME)/$(MCU_SERIES)
-  #   OR
-  #   <chibios[-contrib]>/os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES)
-  MCU_FAMILY = STM32
-  MCU_SERIES = STM32F0xx
-
-  # Linker script to use
-  # - it should exist either in <chibios>/os/common/startup/ARMCMx/compilers/GCC/ld/
-  #   or <keyboard_dir>/ld/
-  MCU_LDSCRIPT ?= STM32F042x6
-
-  # Startup code to use
-  #  - it should exist in <chibios>/os/common/startup/ARMCMx/compilers/GCC/mk/
-  MCU_STARTUP ?= stm32f0xx
-
-  # Board: it should exist either in <chibios>/os/hal/boards/,
-  # <keyboard_dir>/boards/, or drivers/boards/
-  BOARD ?= GENERIC_STM32_F042X6
-
-  USE_FPU ?= no
-
-  # UF2 settings
-  UF2_FAMILY ?= STM32F0
-
-  # Stack sizes: Since this chip has limited RAM capacity, the stack area needs to be reduced.
-  # This ensures that the EEPROM page buffer fits into RAM
-  USE_PROCESS_STACKSIZE = 0x600
-  USE_EXCEPTIONS_STACKSIZE = 0x300
-
-  # Bootloader address for STM32 DFU
-  STM32_BOOTLOADER_ADDRESS ?= 0x1FFFC400
-endif
-
-ifneq ($(findstring STM32F072, $(MCU)),)
-  # Cortex version
-  MCU = cortex-m0
-
-  # ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7
-  ARMV = 6
-
-  ## chip/board settings
-  # - the next two should match the directories in
-  #   <chibios[-contrib]>/os/hal/ports/$(MCU_PORT_NAME)/$(MCU_SERIES)
-  #   OR
-  #   <chibios[-contrib]>/os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES)
-  MCU_FAMILY = STM32
-  MCU_SERIES = STM32F0xx
-
-  # Linker script to use
-  # - it should exist either in <chibios>/os/common/startup/ARMCMx/compilers/GCC/ld/
-  #   or <keyboard_dir>/ld/
-  MCU_LDSCRIPT ?= STM32F072xB
-
-  # Startup code to use
-  #  - it should exist in <chibios>/os/common/startup/ARMCMx/compilers/GCC/mk/
-  MCU_STARTUP ?= stm32f0xx
-
-  # Board: it should exist either in <chibios>/os/hal/boards/,
-  # <keyboard_dir>/boards/, or drivers/boards/
-  BOARD ?= GENERIC_STM32_F072XB
-
-  USE_FPU ?= no
-
-  # UF2 settings
-  UF2_FAMILY ?= STM32F0
-
-  # Bootloader address for STM32 DFU
-  STM32_BOOTLOADER_ADDRESS ?= 0x1FFFC800
-endif
-
-ifneq ($(findstring STM32F103, $(MCU)),)
-  # Cortex version
-  MCU = cortex-m3
-
-  # ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7
-  ARMV = 7
-
-  ## chip/board settings
-  # - the next two should match the directories in
-  #   <chibios[-contrib]>/os/hal/ports/$(MCU_PORT_NAME)/$(MCU_SERIES)
-  #   OR
-  #   <chibios[-contrib]>/os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES)
-  MCU_FAMILY = STM32
-  MCU_SERIES = STM32F1xx
-
-  # Linker script to use
-  # - it should exist either in <chibios>/os/common/startup/ARMCMx/compilers/GCC/ld/
-  #   or <keyboard_dir>/ld/
-  ifeq ($(strip $(BOOTLOADER)), uf2boot)
-    MCU_LDSCRIPT ?= STM32F103xB_uf2boot
-  else
-    MCU_LDSCRIPT ?= STM32F103x8
-  endif
-
-  # Startup code to use
-  #  - it should exist in <chibios>/os/common/startup/ARMCMx/compilers/GCC/mk/
-  MCU_STARTUP ?= stm32f1xx
-
-  # Board: it should exist either in <chibios>/os/hal/boards/,
-  # <keyboard_dir>/boards/, or drivers/boards/
-  BOARD ?= GENERIC_STM32_F103
-
-  USE_FPU ?= no
-
-  # UF2 settings
-  UF2_FAMILY ?= STM32F1
-endif
-
-ifneq ($(findstring STM32F303, $(MCU)),)
-  # Cortex version
-  MCU = cortex-m4
-
-  # ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7
-  ARMV = 7
-
-  ## chip/board settings
-  # - the next two should match the directories in
-  #   <chibios[-contrib]>/os/hal/ports/$(MCU_PORT_NAME)/$(MCU_SERIES)
-  #   OR
-  #   <chibios[-contrib]>/os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES)
-  MCU_FAMILY = STM32
-  MCU_SERIES = STM32F3xx
-
-  # Linker script to use
-  # - it should exist either in <chibios>/os/common/startup/ARMCMx/compilers/GCC/ld/
-  #   or <keyboard_dir>/ld/
-  ifeq ($(strip $(BOOTLOADER)), tinyuf2)
-    MCU_LDSCRIPT ?= STM32F303xC_tinyuf2
-  else
-    MCU_LDSCRIPT ?= STM32F303xC
-  endif
-
-  # Startup code to use
-  #  - it should exist in <chibios>/os/common/startup/ARMCMx/compilers/GCC/mk/
-  MCU_STARTUP ?= stm32f3xx
-
-  # Board: it should exist either in <chibios>/os/hal/boards/,
-  # <keyboard_dir>/boards/, or drivers/boards/
-  BOARD ?= GENERIC_STM32_F303XC
-
-  USE_FPU ?= yes
-
-  # UF2 settings
-  UF2_FAMILY ?= STM32F3
-
-  # Bootloader address for STM32 DFU
-  STM32_BOOTLOADER_ADDRESS ?= 0x1FFFD800
-endif
-
-ifneq ($(findstring STM32F401, $(MCU)),)
-  # Cortex version
-  MCU = cortex-m4
-
-  # ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7
-  ARMV = 7
-
-  ## chip/board settings
-  # - the next two should match the directories in
-  #   <chibios[-contrib]>/os/hal/ports/$(MCU_PORT_NAME)/$(MCU_SERIES)
-  #   OR
-  #   <chibios[-contrib]>/os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES)
-  MCU_FAMILY = STM32
-  MCU_SERIES = STM32F4xx
-
-  # Linker script to use
-  # - it should exist either in <chibios>/os/common/startup/ARMCMx/compilers/GCC/ld/
-  #   or <keyboard_dir>/ld/
-  ifeq ($(strip $(BOOTLOADER)), tinyuf2)
-    MCU_LDSCRIPT ?= STM32F401xC_tinyuf2
-  else
-    MCU_LDSCRIPT ?= STM32F401xC
-  endif
-
-  # Startup code to use
-  #  - it should exist in <chibios>/os/common/startup/ARMCMx/compilers/GCC/mk/
-  MCU_STARTUP ?= stm32f4xx
-
-  # Board: it should exist either in <chibios>/os/hal/boards/,
-  # <keyboard_dir>/boards/, or drivers/boards/
-  BOARD ?= GENERIC_STM32_F401XC
-
-  USE_FPU ?= yes
-
-  # UF2 settings
-  UF2_FAMILY ?= STM32F4
-
-  # Bootloader address for STM32 DFU
-  STM32_BOOTLOADER_ADDRESS ?= 0x1FFF0000
-
-  # Revert to legacy wear-leveling driver until ChibiOS's EFL driver is fixed with 128kB and 384kB variants.
-  EEPROM_DRIVER ?= wear_leveling
-  WEAR_LEVELING_DRIVER ?= legacy
-endif
-
-ifneq ($(findstring STM32F405, $(MCU)),)
-  # Cortex version
-  MCU = cortex-m4
-
-  # ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7
-  ARMV = 7
-
-  ## chip/board settings
-  # - the next two should match the directories in
-  #   <chibios[-contrib]>/os/hal/ports/$(MCU_PORT_NAME)/$(MCU_SERIES)
-  #   OR
-  #   <chibios[-contrib]>/os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES)
-  MCU_FAMILY = STM32
-  MCU_SERIES = STM32F4xx
-
-  # Linker script to use
-  # - it should exist either in <chibios>/os/common/ports/ARMCMx/compilers/GCC/ld/
-  #   or <keyboard_dir>/ld/
-  MCU_LDSCRIPT ?= STM32F405xG
-
-  # Startup code to use
-  #  - it should exist in <chibios>/os/common/startup/ARMCMx/compilers/GCC/mk/
-  MCU_STARTUP ?= stm32f4xx
-
-  # Board: it should exist either in <chibios>/os/hal/boards/,
-  # <keyboard_dir>/boards/, or drivers/boards/
-  BOARD ?= GENERIC_STM32_F405XG
-
-  USE_FPU ?= yes
-
-  # UF2 settings
-  UF2_FAMILY ?= STM32F4
-
-  # Bootloader address for STM32 DFU
-  STM32_BOOTLOADER_ADDRESS ?= 0x1FFF0000
-endif
-
-ifneq ($(findstring STM32F407, $(MCU)),)
-  # Cortex version
-  MCU = cortex-m4
-
-  # ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7
-  ARMV = 7
-
-  ## chip/board settings
-  # - the next two should match the directories in
-  #   <chibios[-contrib]>/os/hal/ports/$(MCU_PORT_NAME)/$(MCU_SERIES)
-  #   OR
-  #   <chibios[-contrib]>/os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES)
-  MCU_FAMILY = STM32
-  MCU_SERIES = STM32F4xx
-
-  # Linker script to use
-  # - it should exist either in <chibios>/os/common/startup/ARMCMx/compilers/GCC/ld/
-  #   or <keyboard_dir>/ld/
-  MCU_LDSCRIPT ?= STM32F407xE
-
-  # Startup code to use
-  #  - it should exist in <chibios>/os/common/startup/ARMCMx/compilers/GCC/mk/
-  MCU_STARTUP ?= stm32f4xx
-
-  # Board: it should exist either in <chibios>/os/hal/boards/,
-  # <keyboard_dir>/boards/, or drivers/boards/
-  BOARD ?= GENERIC_STM32_F407XE
-
-  USE_FPU ?= yes
-
-  # UF2 settings
-  UF2_FAMILY ?= STM32F4
-
-  # Bootloader address for STM32 DFU
-  STM32_BOOTLOADER_ADDRESS ?= 0x1FFF0000
-endif
-
-ifneq ($(findstring STM32F411, $(MCU)),)
-  # Cortex version
-  MCU = cortex-m4
-
-  # ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7
-  ARMV = 7
-
-  ## chip/board settings
-  # - the next two should match the directories in
-  #   <chibios[-contrib]>/os/hal/ports/$(MCU_PORT_NAME)/$(MCU_SERIES)
-  #   OR
-  #   <chibios[-contrib]>/os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES)
-  MCU_FAMILY = STM32
-  MCU_SERIES = STM32F4xx
-
-  # Linker script to use
-  # - it should exist either in <chibios>/os/common/startup/ARMCMx/compilers/GCC/ld/
-  #   or <keyboard_dir>/ld/
-  ifeq ($(strip $(BOOTLOADER)), tinyuf2)
-    MCU_LDSCRIPT ?= STM32F411xE_tinyuf2
-  else
-    MCU_LDSCRIPT ?= STM32F411xE
-  endif
-
-  # Startup code to use
-  #  - it should exist in <chibios>/os/common/startup/ARMCMx/compilers/GCC/mk/
-  MCU_STARTUP ?= stm32f4xx
-
-  # Board: it should exist either in <chibios>/os/hal/boards/,
-  # <keyboard_dir>/boards/, or drivers/boards/
-  BOARD ?= GENERIC_STM32_F411XE
-
-  USE_FPU ?= yes
-
-  # UF2 settings
-  UF2_FAMILY ?= STM32F4
-
-  # Bootloader address for STM32 DFU
-  STM32_BOOTLOADER_ADDRESS ?= 0x1FFF0000
-endif
-
-ifneq ($(findstring STM32F446, $(MCU)),)
-  # Cortex version
-  MCU = cortex-m4
-
-  # ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7
-  ARMV = 7
-
-  ## chip/board settings
-  # - the next two should match the directories in
-  #   <chibios[-contrib]>/os/hal/ports/$(MCU_PORT_NAME)/$(MCU_SERIES)
-  #   OR
-  #   <chibios[-contrib]>/os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES)
-  MCU_FAMILY = STM32
-  MCU_SERIES = STM32F4xx
-
-  # Linker script to use
-  # - it should exist either in <chibios>/os/common/startup/ARMCMx/compilers/GCC/ld/
-  #   or <keyboard_dir>/ld/
-  MCU_LDSCRIPT ?= STM32F446xE
-
-  # Startup code to use
-  #  - it should exist in <chibios>/os/common/startup/ARMCMx/compilers/GCC/mk/
-  MCU_STARTUP ?= stm32f4xx
-
-  # Board: it should exist either in <chibios>/os/hal/boards/,
-  # <keyboard_dir>/boards/, or drivers/boards/
-  BOARD ?= GENERIC_STM32_F446XE
-
-  USE_FPU ?= yes
-
-  # Bootloader address for STM32 DFU
-  STM32_BOOTLOADER_ADDRESS ?= 0x1FFF0000
-
-  # Default as no chibios efl config
-  EEPROM_DRIVER ?= transient
-endif
-
-ifneq ($(findstring STM32G431, $(MCU)),)
-  # Cortex version
-  MCU = cortex-m4
-
-  # ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7
-  ARMV = 7
-
-  ## chip/board settings
-  # - the next two should match the directories in
-  #   <chibios[-contrib]>/os/hal/ports/$(MCU_PORT_NAME)/$(MCU_SERIES)
-  #   OR
-  #   <chibios[-contrib]>/os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES)
-  MCU_FAMILY = STM32
-  MCU_SERIES = STM32G4xx
-
-  # Linker script to use
-  # - it should exist either in <chibios>/os/common/startup/ARMCMx/compilers/GCC/ld/
-  #   or <keyboard_dir>/ld/
-  MCU_LDSCRIPT ?= STM32G431xB
-
-  # Startup code to use
-  #  - it should exist in <chibios>/os/common/startup/ARMCMx/compilers/GCC/mk/
-  MCU_STARTUP ?= stm32g4xx
-
-  # Board: it should exist either in <chibios>/os/hal/boards/,
-  # <keyboard_dir>/boards/, or drivers/boards/
-  BOARD ?= GENERIC_STM32_G431XB
-
-  USE_FPU ?= yes
-
-  # UF2 settings
-  UF2_FAMILY ?= STM32G4
-
-  # Bootloader address for STM32 DFU
-  STM32_BOOTLOADER_ADDRESS ?= 0x1FFF0000
-endif
-
-ifneq ($(findstring STM32G474, $(MCU)),)
-  # Cortex version
-  MCU = cortex-m4
-
-  # ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7
-  ARMV = 7
-
-  ## chip/board settings
-  # - the next two should match the directories in
-  #   <chibios[-contrib]>/os/hal/ports/$(MCU_PORT_NAME)/$(MCU_SERIES)
-  #   OR
-  #   <chibios[-contrib]>/os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES)
-  MCU_FAMILY = STM32
-  MCU_SERIES = STM32G4xx
-
-  # Linker script to use
-  # - it should exist either in <chibios>/os/common/startup/ARMCMx/compilers/GCC/ld/
-  #   or <keyboard_dir>/ld/
-  MCU_LDSCRIPT ?= STM32G474xE
-
-  # Startup code to use
-  #  - it should exist in <chibios>/os/common/startup/ARMCMx/compilers/GCC/mk/
-  MCU_STARTUP ?= stm32g4xx
-
-  # Board: it should exist either in <chibios>/os/hal/boards/,
-  # <keyboard_dir>/boards/, or drivers/boards/
-  BOARD ?= GENERIC_STM32_G474XE
-
-  USE_FPU ?= yes
-
-  # UF2 settings
-  UF2_FAMILY ?= STM32G4
-
-  # Bootloader address for STM32 DFU
-  STM32_BOOTLOADER_ADDRESS ?= 0x1FFF0000
-endif
-
-ifneq (,$(filter $(MCU),STM32L432 STM32L442))
-  # Cortex version
-  MCU = cortex-m4
-
-  # ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7
-  ARMV = 7
-
-  ## chip/board settings
-  # - the next two should match the directories in
-  #   <chibios[-contrib]>/os/hal/ports/$(MCU_PORT_NAME)/$(MCU_SERIES)
-  #   OR
-  #   <chibios[-contrib]>/os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES)
-  MCU_FAMILY = STM32
-  MCU_SERIES = STM32L4xx
-
-  # Linker script to use
-  # - it should exist either in <chibios>/os/common/startup/ARMCMx/compilers/GCC/ld/
-  #   or <keyboard_dir>/ld/
-  MCU_LDSCRIPT ?= STM32L432xC
-
-  # Startup code to use
-  #  - it should exist in <chibios>/os/common/startup/ARMCMx/compilers/GCC/mk/
-  MCU_STARTUP ?= stm32l4xx
-
-  # Board: it should exist either in <chibios>/os/hal/boards/,
-  # <keyboard_dir>/boards/, or drivers/boards/
-  BOARD ?= GENERIC_STM32_L432XC
-
-  PLATFORM_NAME ?= platform_l432
-
-  USE_FPU ?= yes
-
-  # UF2 settings
-  UF2_FAMILY ?= STM32L4
-
-  # Bootloader address for STM32 DFU
-  STM32_BOOTLOADER_ADDRESS ?= 0x1FFF0000
-endif
-
-ifneq (,$(filter $(MCU),STM32L433 STM32L443))
-  # Cortex version
-  MCU = cortex-m4
-
-  # ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7
-  ARMV = 7
-
-  ## chip/board settings
-  # - the next two should match the directories in
-  #   <chibios[-contrib]>/os/hal/ports/$(MCU_PORT_NAME)/$(MCU_SERIES)
-  #   OR
-  #   <chibios[-contrib]>/os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES)
-  MCU_FAMILY = STM32
-  MCU_SERIES = STM32L4xx
-
-  # Linker script to use
-  # - it should exist either in <chibios>/os/common/startup/ARMCMx/compilers/GCC/ld/
-  #   or <keyboard_dir>/ld/
-  MCU_LDSCRIPT ?= STM32L432xC
-
-  # Startup code to use
-  #  - it should exist in <chibios>/os/common/startup/ARMCMx/compilers/GCC/mk/
-  MCU_STARTUP ?= stm32l4xx
-
-  # Board: it should exist either in <chibios>/os/hal/boards/,
-  # <keyboard_dir>/boards/, or drivers/boards/
-  BOARD ?= GENERIC_STM32_L433XC
-
-  PLATFORM_NAME ?= platform_l432
-
-  USE_FPU ?= yes
-
-  # UF2 settings
-  UF2_FAMILY ?= STM32L4
-
-  # Bootloader address for STM32 DFU
-  STM32_BOOTLOADER_ADDRESS ?= 0x1FFF0000
-endif
-
-ifneq (,$(filter $(MCU),STM32L412 STM32L422))
-  # Cortex version
-  MCU = cortex-m4
-
-  # ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7
-  ARMV = 7
-
-  ## chip/board settings
-  # - the next two should match the directories in
-  #   <chibios[-contrib]>/os/hal/ports/$(MCU_PORT_NAME)/$(MCU_SERIES)
-  #   OR
-  #   <chibios[-contrib]>/os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES)
-  MCU_FAMILY = STM32
-  MCU_SERIES = STM32L4xx
-
-  # Linker script to use
-  # - it should exist either in <chibios>/os/common/startup/ARMCMx/compilers/GCC/ld/
-  #   or <keyboard_dir>/ld/
-  MCU_LDSCRIPT ?= STM32L412xB
-
-  # Startup code to use
-  #  - it should exist in <chibios>/os/common/startup/ARMCMx/compilers/GCC/mk/
-  MCU_STARTUP ?= stm32l4xx
-
-  # Board: it should exist either in <chibios>/os/hal/boards/,
-  # <keyboard_dir>/boards/, or drivers/boards/
-  BOARD ?= GENERIC_STM32_L412XB
-
-  PLATFORM_NAME ?= platform_l412_l422
-
-  USE_FPU ?= yes
-
-  # UF2 settings
-  UF2_FAMILY ?= STM32L4
-
-  # Bootloader address for STM32 DFU
-  STM32_BOOTLOADER_ADDRESS ?= 0x1FFF0000
-endif
-
-ifneq ($(findstring WB32F3G71, $(MCU)),)
-  # Cortex version
-  MCU = cortex-m3
-
-  # ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7
-  ARMV = 7
-
-  ## chip/board settings
-  # - the next two should match the directories in
-  #   <chibios[-contrib]>/os/hal/ports/$(MCU_PORT_NAME)/$(MCU_SERIES)
-  #   OR
-  #   <chibios[-contrib]>/os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES)
-  MCU_FAMILY = WB32
-  MCU_SERIES = WB32F3G71xx
-
-  # Linker script to use
-  # - it should exist either in <chibios>/os/common/ports/ARMCMx/compilers/GCC/ld/
-  #   or <keyboard_dir>/ld/
-  MCU_LDSCRIPT ?= WB32F3G71x9
-
-  # Startup code to use
-  #  - it should exist in <chibios>/os/common/startup/ARMCMx/compilers/GCC/mk/
-  MCU_STARTUP ?= wb32f3g71xx
-
-  # Board: it should exist either in <chibios>/os/hal/boards/,
-  # <keyboard_dir>/boards/, or drivers/boards/
-  BOARD ?= GENERIC_WB32_F3G71XX
-
-  USE_FPU ?= no
-
-  # Bootloader address for WB32 DFU
-  WB32_BOOTLOADER_ADDRESS ?= 0x1FFFE000
-endif
-
-ifneq ($(findstring WB32FQ95, $(MCU)),)
-  # Cortex version
-  MCU = cortex-m3
-
-  # ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7
-  ARMV = 7
-
-  ## chip/board settings
-  # - the next two should match the directories in
-  #   <chibios[-contrib]>/os/hal/ports/$(MCU_PORT_NAME)/$(MCU_SERIES)
-  #   OR
-  #   <chibios[-contrib]>/os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES)
-  MCU_FAMILY = WB32
-  MCU_SERIES = WB32FQ95xx
-
-  # Linker script to use
-  # - it should exist either in <chibios>/os/common/ports/ARMCMx/compilers/GCC/ld/
-  #   or <keyboard_dir>/ld/
-  MCU_LDSCRIPT ?= WB32FQ95xB
-
-  # Startup code to use
-  #  - it should exist in <chibios>/os/common/startup/ARMCMx/compilers/GCC/mk/
-  MCU_STARTUP ?= wb32fq95xx
-
-  # Board: it should exist either in <chibios>/os/hal/boards/,
-  # <keyboard_dir>/boards/, or drivers/boards/
-  BOARD ?= GENERIC_WB32_FQ95XX
-
-  USE_FPU ?= no
-
-  # Bootloader address for WB32 DFU
-  WB32_BOOTLOADER_ADDRESS ?= 0x1FFFE000
-endif
-
-ifneq ($(findstring GD32VF103, $(MCU)),)
-  # RISC-V
-  MCU = risc-v
-
-  # RISC-V extensions and abi configuration
-  MCU_ARCH = rv32imac
-  MCU_ABI = ilp32
-  MCU_CMODEL = medlow
-
-  ## chip/board settings
-  # - the next two should match the directories in
-  #   <chibios[-contrib]>/os/hal/ports/$(MCU_PORT_NAME)/$(MCU_SERIES)
-  #   OR
-  #   <chibios[-contrib]>/os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES)
-  MCU_PORT_NAME = GD
-  MCU_FAMILY = GD32V
-  MCU_SERIES = GD32VF103
-
-  # Linker script to use
-  # - it should exist either in <chibios>/os/common/startup/RISCV-ECLIC/compilers/GCC/ld/
-  #   or <keyboard_dir>/ld/
-  MCU_LDSCRIPT ?= GD32VF103xB
-
-  # Startup code to use
-  #  - it should exist in <chibios>/os/common/startup/RISCV-ECLIC/compilers/GCC/mk/
-  MCU_STARTUP ?= gd32vf103
-
-  # Board: it should exist either in <chibios>/os/hal/boards/,
-  # <keyboard_dir>/boards/, or drivers/boards/
-  BOARD ?= SIPEED_LONGAN_NANO
-
-  USE_FPU ?= no
-endif
-
-ifneq (,$(filter $(MCU),at90usb162 atmega16u2 atmega32u2 atmega16u4 atmega32u4 at90usb646 at90usb647 at90usb1286 at90usb1287))
-  PROTOCOL = LUFA
-
-  # Processor frequency.
-  #     This will define a symbol, F_CPU, in all source code files equal to the
-  #     processor frequency in Hz. You can then use this symbol in your source code to
-  #     calculate timings. Do NOT tack on a 'UL' at the end, this will be done
-  #     automatically to create a 32-bit value in your source code.
-  #
-  #     This will be an integer division of F_USB below, as it is sourced by
-  #     F_USB after it has run through any CPU prescalers. Note that this value
-  #     does not *change* the processor frequency - it should merely be updated to
-  #     reflect the processor speed set externally so that the code can use accurate
-  #     software delays.
-  F_CPU ?= 16000000
-
-  # LUFA specific
-  #
-  # Target architecture (see library "Board Types" documentation).
-  ARCH = AVR8
-
-  # Input clock frequency.
-  #     This will define a symbol, F_USB, in all source code files equal to the
-  #     input clock frequency (before any prescaling is performed) in Hz. This value may
-  #     differ from F_CPU if prescaling is used on the latter, and is required as the
-  #     raw input clock is fed directly to the PLL sections of the AVR for high speed
-  #     clock generation for the USB and other AVR subsections. Do NOT tack on a 'UL'
-  #     at the end, this will be done automatically to create a 32-bit value in your
-  #     source code.
-  #
-  #     If no clock division is performed on the input clock inside the AVR (via the
-  #     CPU clock adjust registers or the clock division fuses), this will be equal to F_CPU.
-  F_USB ?= $(F_CPU)
-
-  # Interrupt driven control endpoint task
-  ifeq (,$(filter $(NO_INTERRUPT_CONTROL_ENDPOINT),yes))
-    OPT_DEFS += -DINTERRUPT_CONTROL_ENDPOINT
-  endif
-  ifneq (,$(filter $(MCU),at90usb162 atmega16u2 atmega32u2))
-    NO_I2C = yes
-  endif
-endif
-
-ifneq (,$(filter $(MCU),atmega32a))
-  # MCU name for avrdude
-  AVRDUDE_MCU = m32
-
-  PROTOCOL = VUSB
-
-  # Processor frequency.
-  #     This will define a symbol, F_CPU, in all source code files equal to the
-  #     processor frequency in Hz. You can then use this symbol in your source code to
-  #     calculate timings. Do NOT tack on a 'UL' at the end, this will be done
-  #     automatically to create a 32-bit value in your source code.
-  F_CPU ?= 12000000
-endif
-
-ifneq (,$(filter $(MCU),atmega328p))
-  # MCU name for avrdude
-  AVRDUDE_MCU = m328p
-
-  PROTOCOL = VUSB
-
-  # Processor frequency.
-  #     This will define a symbol, F_CPU, in all source code files equal to the
-  #     processor frequency in Hz. You can then use this symbol in your source code to
-  #     calculate timings. Do NOT tack on a 'UL' at the end, this will be done
-  #     automatically to create a 32-bit value in your source code.
-  F_CPU ?= 16000000
-endif
-
-ifneq (,$(filter $(MCU),atmega328))
-  # MCU name for avrdude
-  AVRDUDE_MCU = m328
-
-  PROTOCOL = VUSB
-
-  # Processor frequency.
-  #     This will define a symbol, F_CPU, in all source code files equal to the
-  #     processor frequency in Hz. You can then use this symbol in your source code to
-  #     calculate timings. Do NOT tack on a 'UL' at the end, this will be done
-  #     automatically to create a 32-bit value in your source code.
-  F_CPU ?= 16000000
-endif
-
-ifneq (,$(filter $(MCU),attiny85))
-  PROTOCOL = VUSB
-
-  # Processor frequency.
-  #     This will define a symbol, F_CPU, in all source code files equal to the
-  #     processor frequency in Hz. You can then use this symbol in your source code to
-  #     calculate timings. Do NOT tack on a 'UL' at the end, this will be done
-  #     automatically to create a 32-bit value in your source code.
-  F_CPU ?= 16500000
-endif
diff --git a/platforms/avr/mcu_selection.mk b/platforms/avr/mcu_selection.mk
new file mode 100644
index 0000000000..c49818fbfb
--- /dev/null
+++ b/platforms/avr/mcu_selection.mk
@@ -0,0 +1,95 @@
+ifneq (,$(filter $(MCU),at90usb162 atmega16u2 atmega32u2 atmega16u4 atmega32u4 at90usb646 at90usb647 at90usb1286 at90usb1287))
+  PROTOCOL = LUFA
+
+  # Processor frequency.
+  #     This will define a symbol, F_CPU, in all source code files equal to the
+  #     processor frequency in Hz. You can then use this symbol in your source code to
+  #     calculate timings. Do NOT tack on a 'UL' at the end, this will be done
+  #     automatically to create a 32-bit value in your source code.
+  #
+  #     This will be an integer division of F_USB below, as it is sourced by
+  #     F_USB after it has run through any CPU prescalers. Note that this value
+  #     does not *change* the processor frequency - it should merely be updated to
+  #     reflect the processor speed set externally so that the code can use accurate
+  #     software delays.
+  F_CPU ?= 16000000
+
+  # LUFA specific
+  #
+  # Target architecture (see library "Board Types" documentation).
+  ARCH = AVR8
+
+  # Input clock frequency.
+  #     This will define a symbol, F_USB, in all source code files equal to the
+  #     input clock frequency (before any prescaling is performed) in Hz. This value may
+  #     differ from F_CPU if prescaling is used on the latter, and is required as the
+  #     raw input clock is fed directly to the PLL sections of the AVR for high speed
+  #     clock generation for the USB and other AVR subsections. Do NOT tack on a 'UL'
+  #     at the end, this will be done automatically to create a 32-bit value in your
+  #     source code.
+  #
+  #     If no clock division is performed on the input clock inside the AVR (via the
+  #     CPU clock adjust registers or the clock division fuses), this will be equal to F_CPU.
+  F_USB ?= $(F_CPU)
+
+  # Interrupt driven control endpoint task
+  ifeq (,$(filter $(NO_INTERRUPT_CONTROL_ENDPOINT),yes))
+    OPT_DEFS += -DINTERRUPT_CONTROL_ENDPOINT
+  endif
+  ifneq (,$(filter $(MCU),at90usb162 atmega16u2 atmega32u2))
+    NO_I2C = yes
+  endif
+endif
+
+ifneq (,$(filter $(MCU),atmega32a))
+  # MCU name for avrdude
+  AVRDUDE_MCU = m32
+
+  PROTOCOL = VUSB
+
+  # Processor frequency.
+  #     This will define a symbol, F_CPU, in all source code files equal to the
+  #     processor frequency in Hz. You can then use this symbol in your source code to
+  #     calculate timings. Do NOT tack on a 'UL' at the end, this will be done
+  #     automatically to create a 32-bit value in your source code.
+  F_CPU ?= 12000000
+endif
+
+ifneq (,$(filter $(MCU),atmega328p))
+  # MCU name for avrdude
+  AVRDUDE_MCU = m328p
+
+  PROTOCOL = VUSB
+
+  # Processor frequency.
+  #     This will define a symbol, F_CPU, in all source code files equal to the
+  #     processor frequency in Hz. You can then use this symbol in your source code to
+  #     calculate timings. Do NOT tack on a 'UL' at the end, this will be done
+  #     automatically to create a 32-bit value in your source code.
+  F_CPU ?= 16000000
+endif
+
+ifneq (,$(filter $(MCU),atmega328))
+  # MCU name for avrdude
+  AVRDUDE_MCU = m328
+
+  PROTOCOL = VUSB
+
+  # Processor frequency.
+  #     This will define a symbol, F_CPU, in all source code files equal to the
+  #     processor frequency in Hz. You can then use this symbol in your source code to
+  #     calculate timings. Do NOT tack on a 'UL' at the end, this will be done
+  #     automatically to create a 32-bit value in your source code.
+  F_CPU ?= 16000000
+endif
+
+ifneq (,$(filter $(MCU),attiny85))
+  PROTOCOL = VUSB
+
+  # Processor frequency.
+  #     This will define a symbol, F_CPU, in all source code files equal to the
+  #     processor frequency in Hz. You can then use this symbol in your source code to
+  #     calculate timings. Do NOT tack on a 'UL' at the end, this will be done
+  #     automatically to create a 32-bit value in your source code.
+  F_CPU ?= 16500000
+endif
diff --git a/platforms/chibios/mcu_selection.mk b/platforms/chibios/mcu_selection.mk
new file mode 100644
index 0000000000..6b6488466b
--- /dev/null
+++ b/platforms/chibios/mcu_selection.mk
@@ -0,0 +1,825 @@
+ifneq ($(findstring MKL26Z64, $(MCU)),)
+  # Cortex version
+  MCU = cortex-m0plus
+
+  # ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7
+  ARMV = 6
+
+  ## chip/board settings
+  # - the next two should match the directories in
+  #   <chibios[-contrib]>/os/hal/ports/$(MCU_PORT_NAME)/$(MCU_SERIES)
+  #   OR
+  #   <chibios[-contrib]>/os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES)
+  MCU_FAMILY = KINETIS
+  MCU_SERIES = KL2x
+
+  # Linker script to use
+  # - it should exist either in <chibios>/os/common/ports/ARMCMx/compilers/GCC/ld/
+  #   or <keyboard_dir>/ld/
+  MCU_LDSCRIPT ?= MKL26Z64
+
+  # Startup code to use
+  #  - it should exist in <chibios>/os/common/ports/ARMCMx/compilers/GCC/mk/
+  MCU_STARTUP ?= kl2x
+
+  # Board: it should exist either in <chibios>/os/hal/boards/,
+  # <keyboard_dir>/boards/, or drivers/boards/
+  BOARD ?= PJRC_TEENSY_LC
+endif
+
+ifneq ($(findstring MK20DX128, $(MCU)),)
+  # Cortex version
+  MCU = cortex-m4
+
+  # ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7
+  ARMV = 7
+
+  ## chip/board settings
+  # - the next two should match the directories in
+  #   <chibios[-contrib]>/os/hal/ports/$(MCU_PORT_NAME)/$(MCU_SERIES)
+  #   OR
+  #   <chibios[-contrib]>/os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES)
+  MCU_FAMILY = KINETIS
+  MCU_SERIES = K20x
+
+  # Linker script to use
+  # - it should exist either in <chibios>/os/common/ports/ARMCMx/compilers/GCC/ld/
+  #   or <keyboard_dir>/ld/
+  MCU_LDSCRIPT ?= MK20DX128
+
+  # Startup code to use
+  #  - it should exist in <chibios>/os/common/ports/ARMCMx/compilers/GCC/mk/
+  MCU_STARTUP ?= k20x5
+
+  # Board: it should exist either in <chibios>/os/hal/boards/,
+  # <keyboard_dir>/boards/, or drivers/boards/
+  BOARD ?= PJRC_TEENSY_3
+endif
+
+ifneq ($(findstring MK20DX256, $(MCU)),)
+  # Cortex version
+  MCU = cortex-m4
+
+  # ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7
+  ARMV = 7
+
+  ## chip/board settings
+  # - the next two should match the directories in
+  #   <chibios[-contrib]>/os/hal/ports/$(MCU_PORT_NAME)/$(MCU_SERIES)
+  #   OR
+  #   <chibios[-contrib]>/os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES)
+  MCU_FAMILY = KINETIS
+  MCU_SERIES = K20x
+
+  # Linker script to use
+  # - it should exist either in <chibios>/os/common/ports/ARMCMx/compilers/GCC/ld/
+  #   or <keyboard_dir>/ld/
+  MCU_LDSCRIPT ?= MK20DX256
+
+  # Startup code to use
+  #  - it should exist in <chibios>/os/common/ports/ARMCMx/compilers/GCC/mk/
+  MCU_STARTUP ?= k20x7
+
+  # Board: it should exist either in <chibios>/os/hal/boards/,
+  # <keyboard_dir>/boards/, or drivers/boards/
+  BOARD ?= PJRC_TEENSY_3_1
+endif
+
+ifneq ($(findstring MK64FX512, $(MCU)),)
+  # Cortex version
+  MCU = cortex-m4
+
+  # ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7
+  ARMV = 7
+
+  ## chip/board settings
+  # - the next two should match the directories in
+  #   <chibios>/os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES)
+  MCU_FAMILY = KINETIS
+  MCU_SERIES = K60x
+
+  # Linker script to use
+  # - it should exist either in <chibios>/os/common/ports/ARMCMx/compilers/GCC/ld/
+  #   or <keyboard_dir>/ld/
+  MCU_LDSCRIPT ?= MK64FX512
+
+  # Startup code to use
+  #  - it should exist in <chibios>/os/common/startup/ARMCMx/compilers/GCC/mk/
+  MCU_STARTUP ?= k60x
+
+  # Board: it should exist either in <chibios>/os/hal/boards/,
+  # <keyboard_dir>/boards/, or drivers/boards/
+  BOARD ?= PJRC_TEENSY_3_5
+endif
+
+ifneq ($(findstring MK66FX1M0, $(MCU)),)
+  # Cortex version
+  MCU = cortex-m4
+
+  # ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7
+  ARMV = 7
+
+  ## chip/board settings
+  # - the next two should match the directories in
+  #   <chibios[-contrib]>/os/hal/ports/$(MCU_PORT_NAME)/$(MCU_SERIES)
+  #   OR
+  #   <chibios[-contrib]>/os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES)
+  MCU_FAMILY = KINETIS
+  MCU_SERIES = MK66F18
+
+  # Linker script to use
+  # - it should exist either in <chibios>/os/common/ports/ARMCMx/compilers/GCC/ld/
+  #   or <keyboard_dir>/ld/
+  MCU_LDSCRIPT ?= MK66FX1M0
+
+  # Startup code to use
+  #  - it should exist in <chibios>/os/common/startup/ARMCMx/compilers/GCC/mk/
+  MCU_STARTUP ?= MK66F18
+
+  # Board: it should exist either in <chibios>/os/hal/boards/,
+  # <keyboard_dir>/boards/, or drivers/boards/
+  BOARD ?= PJRC_TEENSY_3_6
+endif
+
+ifneq ($(findstring RP2040, $(MCU)),)
+  # Cortex version
+  MCU = cortex-m0plus
+
+  # ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7
+  CHIBIOS_PORT = ARMv6-M-RP2
+
+  ## chip/board settings
+  # - the next two should match the directories in
+  #   <chibios[-contrib]>/os/hal/ports/$(MCU_PORT_NAME)/$(MCU_SERIES)
+  #   OR
+  #   <chibios[-contrib]>/os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES)
+  MCU_FAMILY = RP
+  MCU_SERIES = RP2040
+
+  # Linker script to use
+  # - it should exist either in <chibios>/os/common/ports/ARMCMx/compilers/GCC/ld/
+  #   or <keyboard_dir>/ld/
+  STARTUPLD_CONTRIB = $(CHIBIOS_CONTRIB)/os/common/startup/ARMCMx/compilers/GCC/ld
+  MCU_LDSCRIPT ?= RP2040_FLASH_TIMECRIT
+  LDFLAGS += -L $(STARTUPLD_CONTRIB)
+
+  # Startup code to use
+  #  - it should exist in <chibios>/os/common/startup/ARMCMx/compilers/GCC/mk/
+  MCU_STARTUP ?= rp2040
+
+  # Board: it should exist either in <chibios>/os/hal/boards/,
+  # <keyboard_dir>/boards/, or drivers/boards/
+  BOARD ?= GENERIC_PROMICRO_RP2040
+
+  # Default UF2 Bootloader settings
+  UF2_FAMILY ?= RP2040
+  FIRMWARE_FORMAT ?= uf2
+endif
+
+ifneq ($(findstring STM32F042, $(MCU)),)
+  # Cortex version
+  MCU = cortex-m0
+
+  # ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7
+  ARMV = 6
+
+  ## chip/board settings
+  # - the next two should match the directories in
+  #   <chibios[-contrib]>/os/hal/ports/$(MCU_PORT_NAME)/$(MCU_SERIES)
+  #   OR
+  #   <chibios[-contrib]>/os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES)
+  MCU_FAMILY = STM32
+  MCU_SERIES = STM32F0xx
+
+  # Linker script to use
+  # - it should exist either in <chibios>/os/common/startup/ARMCMx/compilers/GCC/ld/
+  #   or <keyboard_dir>/ld/
+  MCU_LDSCRIPT ?= STM32F042x6
+
+  # Startup code to use
+  #  - it should exist in <chibios>/os/common/startup/ARMCMx/compilers/GCC/mk/
+  MCU_STARTUP ?= stm32f0xx
+
+  # Board: it should exist either in <chibios>/os/hal/boards/,
+  # <keyboard_dir>/boards/, or drivers/boards/
+  BOARD ?= GENERIC_STM32_F042X6
+
+  USE_FPU ?= no
+
+  # UF2 settings
+  UF2_FAMILY ?= STM32F0
+
+  # Stack sizes: Since this chip has limited RAM capacity, the stack area needs to be reduced.
+  # This ensures that the EEPROM page buffer fits into RAM
+  USE_PROCESS_STACKSIZE = 0x600
+  USE_EXCEPTIONS_STACKSIZE = 0x300
+
+  # Bootloader address for STM32 DFU
+  STM32_BOOTLOADER_ADDRESS ?= 0x1FFFC400
+endif
+
+ifneq ($(findstring STM32F072, $(MCU)),)
+  # Cortex version
+  MCU = cortex-m0
+
+  # ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7
+  ARMV = 6
+
+  ## chip/board settings
+  # - the next two should match the directories in
+  #   <chibios[-contrib]>/os/hal/ports/$(MCU_PORT_NAME)/$(MCU_SERIES)
+  #   OR
+  #   <chibios[-contrib]>/os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES)
+  MCU_FAMILY = STM32
+  MCU_SERIES = STM32F0xx
+
+  # Linker script to use
+  # - it should exist either in <chibios>/os/common/startup/ARMCMx/compilers/GCC/ld/
+  #   or <keyboard_dir>/ld/
+  MCU_LDSCRIPT ?= STM32F072xB
+
+  # Startup code to use
+  #  - it should exist in <chibios>/os/common/startup/ARMCMx/compilers/GCC/mk/
+  MCU_STARTUP ?= stm32f0xx
+
+  # Board: it should exist either in <chibios>/os/hal/boards/,
+  # <keyboard_dir>/boards/, or drivers/boards/
+  BOARD ?= GENERIC_STM32_F072XB
+
+  USE_FPU ?= no
+
+  # UF2 settings
+  UF2_FAMILY ?= STM32F0
+
+  # Bootloader address for STM32 DFU
+  STM32_BOOTLOADER_ADDRESS ?= 0x1FFFC800
+endif
+
+ifneq ($(findstring STM32F103, $(MCU)),)
+  # Cortex version
+  MCU = cortex-m3
+
+  # ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7
+  ARMV = 7
+
+  ## chip/board settings
+  # - the next two should match the directories in
+  #   <chibios[-contrib]>/os/hal/ports/$(MCU_PORT_NAME)/$(MCU_SERIES)
+  #   OR
+  #   <chibios[-contrib]>/os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES)
+  MCU_FAMILY = STM32
+  MCU_SERIES = STM32F1xx
+
+  # Linker script to use
+  # - it should exist either in <chibios>/os/common/startup/ARMCMx/compilers/GCC/ld/
+  #   or <keyboard_dir>/ld/
+  ifeq ($(strip $(BOOTLOADER)), uf2boot)
+    MCU_LDSCRIPT ?= STM32F103xB_uf2boot
+  else
+    MCU_LDSCRIPT ?= STM32F103x8
+  endif
+
+  # Startup code to use
+  #  - it should exist in <chibios>/os/common/startup/ARMCMx/compilers/GCC/mk/
+  MCU_STARTUP ?= stm32f1xx
+
+  # Board: it should exist either in <chibios>/os/hal/boards/,
+  # <keyboard_dir>/boards/, or drivers/boards/
+  BOARD ?= GENERIC_STM32_F103
+
+  USE_FPU ?= no
+
+  # UF2 settings
+  UF2_FAMILY ?= STM32F1
+endif
+
+ifneq ($(findstring STM32F303, $(MCU)),)
+  # Cortex version
+  MCU = cortex-m4
+
+  # ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7
+  ARMV = 7
+
+  ## chip/board settings
+  # - the next two should match the directories in
+  #   <chibios[-contrib]>/os/hal/ports/$(MCU_PORT_NAME)/$(MCU_SERIES)
+  #   OR
+  #   <chibios[-contrib]>/os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES)
+  MCU_FAMILY = STM32
+  MCU_SERIES = STM32F3xx
+
+  # Linker script to use
+  # - it should exist either in <chibios>/os/common/startup/ARMCMx/compilers/GCC/ld/
+  #   or <keyboard_dir>/ld/
+  ifeq ($(strip $(BOOTLOADER)), tinyuf2)
+    MCU_LDSCRIPT ?= STM32F303xC_tinyuf2
+  else
+    MCU_LDSCRIPT ?= STM32F303xC
+  endif
+
+  # Startup code to use
+  #  - it should exist in <chibios>/os/common/startup/ARMCMx/compilers/GCC/mk/
+  MCU_STARTUP ?= stm32f3xx
+
+  # Board: it should exist either in <chibios>/os/hal/boards/,
+  # <keyboard_dir>/boards/, or drivers/boards/
+  BOARD ?= GENERIC_STM32_F303XC
+
+  USE_FPU ?= yes
+
+  # UF2 settings
+  UF2_FAMILY ?= STM32F3
+
+  # Bootloader address for STM32 DFU
+  STM32_BOOTLOADER_ADDRESS ?= 0x1FFFD800
+endif
+
+ifneq ($(findstring STM32F401, $(MCU)),)
+  # Cortex version
+  MCU = cortex-m4
+
+  # ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7
+  ARMV = 7
+
+  ## chip/board settings
+  # - the next two should match the directories in
+  #   <chibios[-contrib]>/os/hal/ports/$(MCU_PORT_NAME)/$(MCU_SERIES)
+  #   OR
+  #   <chibios[-contrib]>/os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES)
+  MCU_FAMILY = STM32
+  MCU_SERIES = STM32F4xx
+
+  # Linker script to use
+  # - it should exist either in <chibios>/os/common/startup/ARMCMx/compilers/GCC/ld/
+  #   or <keyboard_dir>/ld/
+  ifeq ($(strip $(BOOTLOADER)), tinyuf2)
+    MCU_LDSCRIPT ?= STM32F401xC_tinyuf2
+  else
+    MCU_LDSCRIPT ?= STM32F401xC
+  endif
+
+  # Startup code to use
+  #  - it should exist in <chibios>/os/common/startup/ARMCMx/compilers/GCC/mk/
+  MCU_STARTUP ?= stm32f4xx
+
+  # Board: it should exist either in <chibios>/os/hal/boards/,
+  # <keyboard_dir>/boards/, or drivers/boards/
+  BOARD ?= GENERIC_STM32_F401XC
+
+  USE_FPU ?= yes
+
+  # UF2 settings
+  UF2_FAMILY ?= STM32F4
+
+  # Bootloader address for STM32 DFU
+  STM32_BOOTLOADER_ADDRESS ?= 0x1FFF0000
+
+  # Revert to legacy wear-leveling driver until ChibiOS's EFL driver is fixed with 128kB and 384kB variants.
+  EEPROM_DRIVER ?= wear_leveling
+  WEAR_LEVELING_DRIVER ?= legacy
+endif
+
+ifneq ($(findstring STM32F405, $(MCU)),)
+  # Cortex version
+  MCU = cortex-m4
+
+  # ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7
+  ARMV = 7
+
+  ## chip/board settings
+  # - the next two should match the directories in
+  #   <chibios[-contrib]>/os/hal/ports/$(MCU_PORT_NAME)/$(MCU_SERIES)
+  #   OR
+  #   <chibios[-contrib]>/os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES)
+  MCU_FAMILY = STM32
+  MCU_SERIES = STM32F4xx
+
+  # Linker script to use
+  # - it should exist either in <chibios>/os/common/ports/ARMCMx/compilers/GCC/ld/
+  #   or <keyboard_dir>/ld/
+  MCU_LDSCRIPT ?= STM32F405xG
+
+  # Startup code to use
+  #  - it should exist in <chibios>/os/common/startup/ARMCMx/compilers/GCC/mk/
+  MCU_STARTUP ?= stm32f4xx
+
+  # Board: it should exist either in <chibios>/os/hal/boards/,
+  # <keyboard_dir>/boards/, or drivers/boards/
+  BOARD ?= GENERIC_STM32_F405XG
+
+  USE_FPU ?= yes
+
+  # UF2 settings
+  UF2_FAMILY ?= STM32F4
+
+  # Bootloader address for STM32 DFU
+  STM32_BOOTLOADER_ADDRESS ?= 0x1FFF0000
+endif
+
+ifneq ($(findstring STM32F407, $(MCU)),)
+  # Cortex version
+  MCU = cortex-m4
+
+  # ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7
+  ARMV = 7
+
+  ## chip/board settings
+  # - the next two should match the directories in
+  #   <chibios[-contrib]>/os/hal/ports/$(MCU_PORT_NAME)/$(MCU_SERIES)
+  #   OR
+  #   <chibios[-contrib]>/os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES)
+  MCU_FAMILY = STM32
+  MCU_SERIES = STM32F4xx
+
+  # Linker script to use
+  # - it should exist either in <chibios>/os/common/startup/ARMCMx/compilers/GCC/ld/
+  #   or <keyboard_dir>/ld/
+  MCU_LDSCRIPT ?= STM32F407xE
+
+  # Startup code to use
+  #  - it should exist in <chibios>/os/common/startup/ARMCMx/compilers/GCC/mk/
+  MCU_STARTUP ?= stm32f4xx
+
+  # Board: it should exist either in <chibios>/os/hal/boards/,
+  # <keyboard_dir>/boards/, or drivers/boards/
+  BOARD ?= GENERIC_STM32_F407XE
+
+  USE_FPU ?= yes
+
+  # UF2 settings
+  UF2_FAMILY ?= STM32F4
+
+  # Bootloader address for STM32 DFU
+  STM32_BOOTLOADER_ADDRESS ?= 0x1FFF0000
+endif
+
+ifneq ($(findstring STM32F411, $(MCU)),)
+  # Cortex version
+  MCU = cortex-m4
+
+  # ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7
+  ARMV = 7
+
+  ## chip/board settings
+  # - the next two should match the directories in
+  #   <chibios[-contrib]>/os/hal/ports/$(MCU_PORT_NAME)/$(MCU_SERIES)
+  #   OR
+  #   <chibios[-contrib]>/os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES)
+  MCU_FAMILY = STM32
+  MCU_SERIES = STM32F4xx
+
+  # Linker script to use
+  # - it should exist either in <chibios>/os/common/startup/ARMCMx/compilers/GCC/ld/
+  #   or <keyboard_dir>/ld/
+  ifeq ($(strip $(BOOTLOADER)), tinyuf2)
+    MCU_LDSCRIPT ?= STM32F411xE_tinyuf2
+  else
+    MCU_LDSCRIPT ?= STM32F411xE
+  endif
+
+  # Startup code to use
+  #  - it should exist in <chibios>/os/common/startup/ARMCMx/compilers/GCC/mk/
+  MCU_STARTUP ?= stm32f4xx
+
+  # Board: it should exist either in <chibios>/os/hal/boards/,
+  # <keyboard_dir>/boards/, or drivers/boards/
+  BOARD ?= GENERIC_STM32_F411XE
+
+  USE_FPU ?= yes
+
+  # UF2 settings
+  UF2_FAMILY ?= STM32F4
+
+  # Bootloader address for STM32 DFU
+  STM32_BOOTLOADER_ADDRESS ?= 0x1FFF0000
+endif
+
+ifneq ($(findstring STM32F446, $(MCU)),)
+  # Cortex version
+  MCU = cortex-m4
+
+  # ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7
+  ARMV = 7
+
+  ## chip/board settings
+  # - the next two should match the directories in
+  #   <chibios[-contrib]>/os/hal/ports/$(MCU_PORT_NAME)/$(MCU_SERIES)
+  #   OR
+  #   <chibios[-contrib]>/os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES)
+  MCU_FAMILY = STM32
+  MCU_SERIES = STM32F4xx
+
+  # Linker script to use
+  # - it should exist either in <chibios>/os/common/startup/ARMCMx/compilers/GCC/ld/
+  #   or <keyboard_dir>/ld/
+  MCU_LDSCRIPT ?= STM32F446xE
+
+  # Startup code to use
+  #  - it should exist in <chibios>/os/common/startup/ARMCMx/compilers/GCC/mk/
+  MCU_STARTUP ?= stm32f4xx
+
+  # Board: it should exist either in <chibios>/os/hal/boards/,
+  # <keyboard_dir>/boards/, or drivers/boards/
+  BOARD ?= GENERIC_STM32_F446XE
+
+  USE_FPU ?= yes
+
+  # Bootloader address for STM32 DFU
+  STM32_BOOTLOADER_ADDRESS ?= 0x1FFF0000
+
+  # Default as no chibios efl config
+  EEPROM_DRIVER ?= transient
+endif
+
+ifneq ($(findstring STM32G431, $(MCU)),)
+  # Cortex version
+  MCU = cortex-m4
+
+  # ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7
+  ARMV = 7
+
+  ## chip/board settings
+  # - the next two should match the directories in
+  #   <chibios[-contrib]>/os/hal/ports/$(MCU_PORT_NAME)/$(MCU_SERIES)
+  #   OR
+  #   <chibios[-contrib]>/os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES)
+  MCU_FAMILY = STM32
+  MCU_SERIES = STM32G4xx
+
+  # Linker script to use
+  # - it should exist either in <chibios>/os/common/startup/ARMCMx/compilers/GCC/ld/
+  #   or <keyboard_dir>/ld/
+  MCU_LDSCRIPT ?= STM32G431xB
+
+  # Startup code to use
+  #  - it should exist in <chibios>/os/common/startup/ARMCMx/compilers/GCC/mk/
+  MCU_STARTUP ?= stm32g4xx
+
+  # Board: it should exist either in <chibios>/os/hal/boards/,
+  # <keyboard_dir>/boards/, or drivers/boards/
+  BOARD ?= GENERIC_STM32_G431XB
+
+  USE_FPU ?= yes
+
+  # UF2 settings
+  UF2_FAMILY ?= STM32G4
+
+  # Bootloader address for STM32 DFU
+  STM32_BOOTLOADER_ADDRESS ?= 0x1FFF0000
+endif
+
+ifneq ($(findstring STM32G474, $(MCU)),)
+  # Cortex version
+  MCU = cortex-m4
+
+  # ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7
+  ARMV = 7
+
+  ## chip/board settings
+  # - the next two should match the directories in
+  #   <chibios[-contrib]>/os/hal/ports/$(MCU_PORT_NAME)/$(MCU_SERIES)
+  #   OR
+  #   <chibios[-contrib]>/os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES)
+  MCU_FAMILY = STM32
+  MCU_SERIES = STM32G4xx
+
+  # Linker script to use
+  # - it should exist either in <chibios>/os/common/startup/ARMCMx/compilers/GCC/ld/
+  #   or <keyboard_dir>/ld/
+  MCU_LDSCRIPT ?= STM32G474xE
+
+  # Startup code to use
+  #  - it should exist in <chibios>/os/common/startup/ARMCMx/compilers/GCC/mk/
+  MCU_STARTUP ?= stm32g4xx
+
+  # Board: it should exist either in <chibios>/os/hal/boards/,
+  # <keyboard_dir>/boards/, or drivers/boards/
+  BOARD ?= GENERIC_STM32_G474XE
+
+  USE_FPU ?= yes
+
+  # UF2 settings
+  UF2_FAMILY ?= STM32G4
+
+  # Bootloader address for STM32 DFU
+  STM32_BOOTLOADER_ADDRESS ?= 0x1FFF0000
+endif
+
+ifneq (,$(filter $(MCU),STM32L432 STM32L442))
+  # Cortex version
+  MCU = cortex-m4
+
+  # ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7
+  ARMV = 7
+
+  ## chip/board settings
+  # - the next two should match the directories in
+  #   <chibios[-contrib]>/os/hal/ports/$(MCU_PORT_NAME)/$(MCU_SERIES)
+  #   OR
+  #   <chibios[-contrib]>/os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES)
+  MCU_FAMILY = STM32
+  MCU_SERIES = STM32L4xx
+
+  # Linker script to use
+  # - it should exist either in <chibios>/os/common/startup/ARMCMx/compilers/GCC/ld/
+  #   or <keyboard_dir>/ld/
+  MCU_LDSCRIPT ?= STM32L432xC
+
+  # Startup code to use
+  #  - it should exist in <chibios>/os/common/startup/ARMCMx/compilers/GCC/mk/
+  MCU_STARTUP ?= stm32l4xx
+
+  # Board: it should exist either in <chibios>/os/hal/boards/,
+  # <keyboard_dir>/boards/, or drivers/boards/
+  BOARD ?= GENERIC_STM32_L432XC
+
+  PLATFORM_NAME ?= platform_l432
+
+  USE_FPU ?= yes
+
+  # UF2 settings
+  UF2_FAMILY ?= STM32L4
+
+  # Bootloader address for STM32 DFU
+  STM32_BOOTLOADER_ADDRESS ?= 0x1FFF0000
+endif
+
+ifneq (,$(filter $(MCU),STM32L433 STM32L443))
+  # Cortex version
+  MCU = cortex-m4
+
+  # ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7
+  ARMV = 7
+
+  ## chip/board settings
+  # - the next two should match the directories in
+  #   <chibios[-contrib]>/os/hal/ports/$(MCU_PORT_NAME)/$(MCU_SERIES)
+  #   OR
+  #   <chibios[-contrib]>/os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES)
+  MCU_FAMILY = STM32
+  MCU_SERIES = STM32L4xx
+
+  # Linker script to use
+  # - it should exist either in <chibios>/os/common/startup/ARMCMx/compilers/GCC/ld/
+  #   or <keyboard_dir>/ld/
+  MCU_LDSCRIPT ?= STM32L432xC
+
+  # Startup code to use
+  #  - it should exist in <chibios>/os/common/startup/ARMCMx/compilers/GCC/mk/
+  MCU_STARTUP ?= stm32l4xx
+
+  # Board: it should exist either in <chibios>/os/hal/boards/,
+  # <keyboard_dir>/boards/, or drivers/boards/
+  BOARD ?= GENERIC_STM32_L433XC
+
+  PLATFORM_NAME ?= platform_l432
+
+  USE_FPU ?= yes
+
+  # UF2 settings
+  UF2_FAMILY ?= STM32L4
+
+  # Bootloader address for STM32 DFU
+  STM32_BOOTLOADER_ADDRESS ?= 0x1FFF0000
+endif
+
+ifneq (,$(filter $(MCU),STM32L412 STM32L422))
+  # Cortex version
+  MCU = cortex-m4
+
+  # ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7
+  ARMV = 7
+
+  ## chip/board settings
+  # - the next two should match the directories in
+  #   <chibios[-contrib]>/os/hal/ports/$(MCU_PORT_NAME)/$(MCU_SERIES)
+  #   OR
+  #   <chibios[-contrib]>/os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES)
+  MCU_FAMILY = STM32
+  MCU_SERIES = STM32L4xx
+
+  # Linker script to use
+  # - it should exist either in <chibios>/os/common/startup/ARMCMx/compilers/GCC/ld/
+  #   or <keyboard_dir>/ld/
+  MCU_LDSCRIPT ?= STM32L412xB
+
+  # Startup code to use
+  #  - it should exist in <chibios>/os/common/startup/ARMCMx/compilers/GCC/mk/
+  MCU_STARTUP ?= stm32l4xx
+
+  # Board: it should exist either in <chibios>/os/hal/boards/,
+  # <keyboard_dir>/boards/, or drivers/boards/
+  BOARD ?= GENERIC_STM32_L412XB
+
+  PLATFORM_NAME ?= platform_l412_l422
+
+  USE_FPU ?= yes
+
+  # UF2 settings
+  UF2_FAMILY ?= STM32L4
+
+  # Bootloader address for STM32 DFU
+  STM32_BOOTLOADER_ADDRESS ?= 0x1FFF0000
+endif
+
+ifneq ($(findstring WB32F3G71, $(MCU)),)
+  # Cortex version
+  MCU = cortex-m3
+
+  # ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7
+  ARMV = 7
+
+  ## chip/board settings
+  # - the next two should match the directories in
+  #   <chibios[-contrib]>/os/hal/ports/$(MCU_PORT_NAME)/$(MCU_SERIES)
+  #   OR
+  #   <chibios[-contrib]>/os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES)
+  MCU_FAMILY = WB32
+  MCU_SERIES = WB32F3G71xx
+
+  # Linker script to use
+  # - it should exist either in <chibios>/os/common/ports/ARMCMx/compilers/GCC/ld/
+  #   or <keyboard_dir>/ld/
+  MCU_LDSCRIPT ?= WB32F3G71x9
+
+  # Startup code to use
+  #  - it should exist in <chibios>/os/common/startup/ARMCMx/compilers/GCC/mk/
+  MCU_STARTUP ?= wb32f3g71xx
+
+  # Board: it should exist either in <chibios>/os/hal/boards/,
+  # <keyboard_dir>/boards/, or drivers/boards/
+  BOARD ?= GENERIC_WB32_F3G71XX
+
+  USE_FPU ?= no
+
+  # Bootloader address for WB32 DFU
+  WB32_BOOTLOADER_ADDRESS ?= 0x1FFFE000
+endif
+
+ifneq ($(findstring WB32FQ95, $(MCU)),)
+  # Cortex version
+  MCU = cortex-m3
+
+  # ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7
+  ARMV = 7
+
+  ## chip/board settings
+  # - the next two should match the directories in
+  #   <chibios[-contrib]>/os/hal/ports/$(MCU_PORT_NAME)/$(MCU_SERIES)
+  #   OR
+  #   <chibios[-contrib]>/os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES)
+  MCU_FAMILY = WB32
+  MCU_SERIES = WB32FQ95xx
+
+  # Linker script to use
+  # - it should exist either in <chibios>/os/common/ports/ARMCMx/compilers/GCC/ld/
+  #   or <keyboard_dir>/ld/
+  MCU_LDSCRIPT ?= WB32FQ95xB
+
+  # Startup code to use
+  #  - it should exist in <chibios>/os/common/startup/ARMCMx/compilers/GCC/mk/
+  MCU_STARTUP ?= wb32fq95xx
+
+  # Board: it should exist either in <chibios>/os/hal/boards/,
+  # <keyboard_dir>/boards/, or drivers/boards/
+  BOARD ?= GENERIC_WB32_FQ95XX
+
+  USE_FPU ?= no
+
+  # Bootloader address for WB32 DFU
+  WB32_BOOTLOADER_ADDRESS ?= 0x1FFFE000
+endif
+
+ifneq ($(findstring GD32VF103, $(MCU)),)
+  # RISC-V
+  MCU = risc-v
+
+  # RISC-V extensions and abi configuration
+  MCU_ARCH = rv32imac
+  MCU_ABI = ilp32
+  MCU_CMODEL = medlow
+
+  ## chip/board settings
+  # - the next two should match the directories in
+  #   <chibios[-contrib]>/os/hal/ports/$(MCU_PORT_NAME)/$(MCU_SERIES)
+  #   OR
+  #   <chibios[-contrib]>/os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES)
+  MCU_PORT_NAME = GD
+  MCU_FAMILY = GD32V
+  MCU_SERIES = GD32VF103
+
+  # Linker script to use
+  # - it should exist either in <chibios>/os/common/startup/RISCV-ECLIC/compilers/GCC/ld/
+  #   or <keyboard_dir>/ld/
+  MCU_LDSCRIPT ?= GD32VF103xB
+
+  # Startup code to use
+  #  - it should exist in <chibios>/os/common/startup/RISCV-ECLIC/compilers/GCC/mk/
+  MCU_STARTUP ?= gd32vf103
+
+  # Board: it should exist either in <chibios>/os/hal/boards/,
+  # <keyboard_dir>/boards/, or drivers/boards/
+  BOARD ?= SIPEED_LONGAN_NANO
+
+  USE_FPU ?= no
+endif