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-rw-r--r--builddefs/mcu_selection.mk35
1 files changed, 35 insertions, 0 deletions
diff --git a/builddefs/mcu_selection.mk b/builddefs/mcu_selection.mk
index d5fb731e08..135f663c14 100644
--- a/builddefs/mcu_selection.mk
+++ b/builddefs/mcu_selection.mk
@@ -116,6 +116,41 @@ ifneq ($(findstring MK66FX1M0, $(MCU)),)
BOARD ?= PJRC_TEENSY_3_6
endif
+ifneq ($(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