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-rw-r--r--builddefs/bootloader.mk11
1 files changed, 10 insertions, 1 deletions
diff --git a/builddefs/bootloader.mk b/builddefs/bootloader.mk
index 470febc346..56ef7ff5d8 100644
--- a/builddefs/bootloader.mk
+++ b/builddefs/bootloader.mk
@@ -38,9 +38,18 @@
# RISC-V:
# gd32v-dfu GD32V USB DFU in ROM
#
+# If you need to provide your own implementation, you can set inside `rules.mk`
+# `BOOTLOADER = custom` -- you'll need to provide your own implementations. See
+# the respective file under `platforms/<PLATFORM>/bootloaders/custom.c` to see
+# which functions may be overridden.
+#
# BOOTLOADER_SIZE can still be defined manually, but it's recommended
# you add any possible configuration to this list
+ifeq ($(strip $(BOOTLOADER)), custom)
+ OPT_DEFS += -DBOOTLOADER_CUSTOM
+ BOOTLOADER_TYPE = custom
+endif
ifeq ($(strip $(BOOTLOADER)), atmel-dfu)
OPT_DEFS += -DBOOTLOADER_ATMEL_DFU
OPT_DEFS += -DBOOTLOADER_DFU
@@ -195,5 +204,5 @@ ifeq ($(strip $(BOOTLOADER)), md-boot)
endif
ifeq ($(strip $(BOOTLOADER_TYPE)),)
- BOOTLOADER_TYPE = none
+ $(error No bootloader specified. Please set an appropriate 'BOOTLOADER' in your keyboard's 'rules.mk' file)
endif