Update bootloader.mk (#6698)

bootloader.mk

@@ -19,12 +19,14 @@
 #
 # Sets the bootloader defined in the keyboard's/keymap's rules.mk
 # Current options:
-#   atmel-dfu
-#   lufa-dfu
-#   qmk-dfu
-#   halfkay
-#   caterina
-#   bootloadHID
+#
+# halfkay        PJRC Teensy
+# caterina       Pro Micro (Sparkfun/generic)
+# atmel-dfu      Atmel factory DFU
+# lufa-dfu       LUFA DFU
+# qmk-dfu        QMK DFU (LUFA + blinkenlight)
+# bootloadHID    HIDBootFlash compatible (ATmega32A)
+# USBasp         USBaspLoader (ATmega328P)
 #
 # BOOTLOADER_SIZE can still be defined manually, but it's recommended
 # you add any possible configuration to this list
@@ -32,40 +34,40 @@
 ifeq ($(strip $(BOOTLOADER)), atmel-dfu)
     OPT_DEFS += -DBOOTLOADER_ATMEL_DFU
     OPT_DEFS += -DBOOTLOADER_DFU
-    ifeq ($(strip $(MCU)), atmega32u4)
-      BOOTLOADER_SIZE = 4096
+    ifneq (,$(filter $(MCU), at90usb646 atmega16u2 atmega16u4 atmega32u2 atmega32u4))
+        BOOTLOADER_SIZE = 4096
     endif
     ifeq ($(strip $(MCU)), at90usb1286)
-      BOOTLOADER_SIZE = 8192
+        BOOTLOADER_SIZE = 8192
     endif
 endif
 ifeq ($(strip $(BOOTLOADER)), lufa-dfu)
     OPT_DEFS += -DBOOTLOADER_LUFA_DFU
     OPT_DEFS += -DBOOTLOADER_DFU
-    ifeq ($(strip $(MCU)), atmega32u4)
-      BOOTLOADER_SIZE = 4096
+    ifneq (,$(filter $(MCU), at90usb646 atmega16u2 atmega16u4 atmega32u2 atmega32u4))
+        BOOTLOADER_SIZE = 4096
     endif
     ifeq ($(strip $(MCU)), at90usb1286)
-      BOOTLOADER_SIZE = 8192
+        BOOTLOADER_SIZE = 8192
     endif
 endif
 ifeq ($(strip $(BOOTLOADER)), qmk-dfu)
     OPT_DEFS += -DBOOTLOADER_QMK_DFU
     OPT_DEFS += -DBOOTLOADER_DFU
-    ifeq ($(strip $(MCU)), atmega32u4)
-      BOOTLOADER_SIZE = 4096
+    ifneq (,$(filter $(MCU), at90usb646 atmega16u2 atmega16u4 atmega32u2 atmega32u4))
+        BOOTLOADER_SIZE = 4096
     endif
     ifeq ($(strip $(MCU)), at90usb1286)
-      BOOTLOADER_SIZE = 8192
+        BOOTLOADER_SIZE = 8192
     endif
 endif
 ifeq ($(strip $(BOOTLOADER)), halfkay)
     OPT_DEFS += -DBOOTLOADER_HALFKAY
     ifeq ($(strip $(MCU)), atmega32u4)
-      BOOTLOADER_SIZE = 512
+        BOOTLOADER_SIZE = 512
     endif
     ifeq ($(strip $(MCU)), at90usb1286)
-      BOOTLOADER_SIZE = 1024
+        BOOTLOADER_SIZE = 1024
     endif
 endif
 ifeq ($(strip $(BOOTLOADER)), caterina)