Cleanup rules.mk for 16U2 and 32U2 keyboards (#6768)

* Cleanup rules.mk for 16U2 and 32U2 keyboards

* Add back Tap Dance build option

20 files changed, 115 insertions, 708 deletions

diff --git a/keyboards/2key2crawl/rules.mk b/keyboards/2key2crawl/rules.mk
index feff75b1f3..c7bacab796 100644
--- a/keyboards/2key2crawl/rules.mk
+++ b/keyboards/2key2crawl/rules.mk
@@ -1,18 +1,16 @@
 # MCU name
 MCU = atmega32u2
 
-
 # Bootloader selection
 #   Teensy       halfkay
 #   Pro Micro    caterina
 #   Atmel DFU    atmel-dfu
 #   LUFA DFU     lufa-dfu
 #   QMK DFU      qmk-dfu
-#   atmega32a    bootloadHID
+#   ATmega32A    bootloadHID
+#   ATmega328P   USBasp
 BOOTLOADER = atmel-dfu
 
-
-
 # Build Options
 #   comment out to disable the options.
 #
diff --git a/keyboards/alps64/rules.mk b/keyboards/alps64/rules.mk
index d618e1c3ca..79d9cb3607 100644
--- a/keyboards/alps64/rules.mk
+++ b/keyboards/alps64/rules.mk
@@ -1,13 +1,14 @@
 # MCU name
 MCU = atmega32u2
 
-# Boot Section Size in *bytes*
-#   Teensy halfKay   512
-#   Teensy++ halfKay 1024
-#   Atmel DFU loader 4096
-#   LUFA bootloader  4096
-#   USBaspLoader     2048
-# OPT_DEFS += -DBOOTLOADER_SIZE=4096
+# Bootloader selection
+#   Teensy       halfkay
+#   Pro Micro    caterina
+#   Atmel DFU    atmel-dfu
+#   LUFA DFU     lufa-dfu
+#   QMK DFU      qmk-dfu
+#   ATmega32A    bootloadHID
+#   ATmega328P   USBasp
 BOOTLOADER = atmel-dfu
 
 # Build Options
diff --git a/keyboards/bigseries/rules.mk b/keyboards/bigseries/rules.mk
index c862f0b256..a3dd1ad6c5 100755
--- a/keyboards/bigseries/rules.mk
+++ b/keyboards/bigseries/rules.mk
@@ -1,45 +1,15 @@
 # MCU name
 MCU = atmega32u2
 
-# 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(+60)
-OPT_DEFS += -DINTERRUPT_CONTROL_ENDPOINT
-
-
-# Boot Section Size in *bytes*
-OPT_DEFS += -DBOOTLOADER_SIZE=4096
-
+# Bootloader selection
+#   Teensy       halfkay
+#   Pro Micro    caterina
+#   Atmel DFU    atmel-dfu
+#   LUFA DFU     lufa-dfu
+#   QMK DFU      qmk-dfu
+#   ATmega32A    bootloadHID
+#   ATmega328P   USBasp
+BOOTLOADER = atmel-dfu
 
 # Build Options
 #   comment out to disable the options.
diff --git a/keyboards/bpiphany/frosty_flake/rules.mk b/keyboards/bpiphany/frosty_flake/rules.mk
index 74d24b8402..a890c4a594 100644
--- a/keyboards/bpiphany/frosty_flake/rules.mk
+++ b/keyboards/bpiphany/frosty_flake/rules.mk
@@ -1,51 +1,15 @@
 # MCU name
 MCU = atmega32u2
 
-# 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(+60)
-OPT_DEFS += -DINTERRUPT_CONTROL_ENDPOINT
-
-
-# Boot Section Size in *bytes*
-#   Teensy halfKay   512
-#   Teensy++ halfKay 1024
-#   Atmel DFU loader 4096
-#   LUFA bootloader  4096
-#   USBaspLoader     2048
-OPT_DEFS += -DBOOTLOADER_SIZE=4096
-
+# Bootloader selection
+#   Teensy       halfkay
+#   Pro Micro    caterina
+#   Atmel DFU    atmel-dfu
+#   LUFA DFU     lufa-dfu
+#   QMK DFU      qmk-dfu
+#   ATmega32A    bootloadHID
+#   ATmega328P   USBasp
+BOOTLOADER = atmel-dfu
 
 # Build Options
 #   change yes to no to disable
diff --git a/keyboards/bpiphany/kitten_paw/rules.mk b/keyboards/bpiphany/kitten_paw/rules.mk
index 68c31d3027..72a7f14b3f 100644
--- a/keyboards/bpiphany/kitten_paw/rules.mk
+++ b/keyboards/bpiphany/kitten_paw/rules.mk
@@ -1,51 +1,15 @@
 # MCU name
 MCU = atmega32u2
 
-# 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(+60)
-OPT_DEFS += -DINTERRUPT_CONTROL_ENDPOINT
-
-
-# Boot Section Size in *bytes*
-#   Teensy halfKay   512
-#   Teensy++ halfKay 1024
-#   Atmel DFU loader 4096
-#   LUFA bootloader  4096
-#   USBaspLoader     2048
-	OPT_DEFS += -DBOOTLOADER_SIZE=4096
-
+# Bootloader selection
+#   Teensy       halfkay
+#   Pro Micro    caterina
+#   Atmel DFU    atmel-dfu
+#   LUFA DFU     lufa-dfu
+#   QMK DFU      qmk-dfu
+#   ATmega32A    bootloadHID
+#   ATmega328P   USBasp
+BOOTLOADER = atmel-dfu
 
 # Build Options
 #   change yes to no to disable
diff --git a/keyboards/bpiphany/pegasushoof/rules.mk b/keyboards/bpiphany/pegasushoof/rules.mk
index 58b8f09e11..0910feb61b 100644
--- a/keyboards/bpiphany/pegasushoof/rules.mk
+++ b/keyboards/bpiphany/pegasushoof/rules.mk
@@ -1,42 +1,15 @@
 # MCU name
 MCU = atmega32u2
 
-# 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(+60)
-OPT_DEFS += -DINTERRUPT_CONTROL_ENDPOINT
-
-BOOTLOADER=atmel-dfu
+# Bootloader selection
+#   Teensy       halfkay
+#   Pro Micro    caterina
+#   Atmel DFU    atmel-dfu
+#   LUFA DFU     lufa-dfu
+#   QMK DFU      qmk-dfu
+#   ATmega32A    bootloadHID
+#   ATmega328P   USBasp
+BOOTLOADER = atmel-dfu
 
 # Build Options
 #   change yes to no to disable
diff --git a/keyboards/bpiphany/tiger_lily/rules.mk b/keyboards/bpiphany/tiger_lily/rules.mk
index d471ceb2e5..edd3ab6a4a 100644
--- a/keyboards/bpiphany/tiger_lily/rules.mk
+++ b/keyboards/bpiphany/tiger_lily/rules.mk
@@ -1,51 +1,15 @@
 # MCU name
 MCU = atmega32u2
 
-# 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(+60)
-OPT_DEFS += -DINTERRUPT_CONTROL_ENDPOINT
-
-
-# Boot Section Size in *bytes*
-#   Teensy halfKay   512
-#   Teensy++ halfKay 1024
-#   Atmel DFU loader 4096
-#   LUFA bootloader  4096
-#   USBaspLoader     2048
-OPT_DEFS += -DBOOTLOADER_SIZE=4096
-
+# Bootloader selection
+#   Teensy       halfkay
+#   Pro Micro    caterina
+#   Atmel DFU    atmel-dfu
+#   LUFA DFU     lufa-dfu
+#   QMK DFU      qmk-dfu
+#   ATmega32A    bootloadHID
+#   ATmega328P   USBasp
+BOOTLOADER = atmel-dfu
 
 # Build Options
 #   change yes to no to disable
diff --git a/keyboards/bpiphany/unloved_bastard/rules.mk b/keyboards/bpiphany/unloved_bastard/rules.mk
index aa3346b5c2..e0d75dde8a 100644
--- a/keyboards/bpiphany/unloved_bastard/rules.mk
+++ b/keyboards/bpiphany/unloved_bastard/rules.mk
@@ -1,51 +1,15 @@
 # MCU name
 MCU = atmega32u2
 
-# 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(+60)
-OPT_DEFS += -DINTERRUPT_CONTROL_ENDPOINT
-
-
-# Boot Section Size in *bytes*
-#   Teensy halfKay   512
-#   Teensy++ halfKay 1024
-#   Atmel DFU loader 4096
-#   LUFA bootloader  4096
-#   USBaspLoader     2048
-OPT_DEFS += -DBOOTLOADER_SIZE=4096
-
+# Bootloader selection
+#   Teensy       halfkay
+#   Pro Micro    caterina
+#   Atmel DFU    atmel-dfu
+#   LUFA DFU     lufa-dfu
+#   QMK DFU      qmk-dfu
+#   ATmega32A    bootloadHID
+#   ATmega328P   USBasp
+BOOTLOADER = atmel-dfu
 
 # Build Options
 #   change yes to no to disable
diff --git a/keyboards/handwired/6macro/rules.mk b/keyboards/handwired/6macro/rules.mk
index fc886fb9af..13760ae066 100644
--- a/keyboards/handwired/6macro/rules.mk
+++ b/keyboards/handwired/6macro/rules.mk
@@ -1,63 +1,16 @@
 # MCU name
 MCU = atmega32u2
 
-# 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(+60)
-OPT_DEFS += -DINTERRUPT_CONTROL_ENDPOINT
-
-
 # Bootloader selection
 #   Teensy       halfkay
 #   Pro Micro    caterina
 #   Atmel DFU    atmel-dfu
 #   LUFA DFU     lufa-dfu
 #   QMK DFU      qmk-dfu
-#   atmega32a    bootloadHID
+#   ATmega32A    bootloadHID
+#   ATmega328P   USBasp
 BOOTLOADER = atmel-dfu
 
-
-# If you don't know the bootloader type, then you can specify the
-# Boot Section Size in *bytes* by uncommenting out the OPT_DEFS line
-#   Teensy halfKay      512
-#   Teensy++ halfKay    1024
-#   Atmel DFU loader    4096
-#   LUFA bootloader     4096
-#   USBaspLoader        2048
-# OPT_DEFS += -DBOOTLOADER_SIZE=4096
-
-
 # Build Options
 #   change yes to no to disable
 #
diff --git a/keyboards/idb_60/rules.mk b/keyboards/idb_60/rules.mk
index b5c9413470..b57f12db6a 100644
--- a/keyboards/idb_60/rules.mk
+++ b/keyboards/idb_60/rules.mk
@@ -1,52 +1,16 @@
 # MCU name
 MCU = atmega32u2
 
-# 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(+60)
-OPT_DEFS += -DINTERRUPT_CONTROL_ENDPOINT
-
-
-# Boot Section Size in *bytes*
-#   Teensy halfKay   512
-#   Teensy++ halfKay 1024
-#   Atmel DFU loader 4096
-#   LUFA bootloader  4096
-#   USBaspLoader     2048
+# Bootloader selection
+#   Teensy       halfkay
+#   Pro Micro    caterina
+#   Atmel DFU    atmel-dfu
+#   LUFA DFU     lufa-dfu
+#   QMK DFU      qmk-dfu
+#   ATmega32A    bootloadHID
+#   ATmega328P   USBasp
 BOOTLOADER = atmel-dfu
 
-
 # Build Options
 #   comment out to disable the options.
 #
@@ -62,4 +26,4 @@ NKRO_ENABLE = yes			# USB Nkey Rollover - if this doesn't work, see here: https:
 # BACKLIGHT_ENABLE = yes	# Enable keyboard backlight functionality
 # MIDI_ENABLE = YES			# MIDI controls
 # UNICODE_ENABLE = YES		# Unicode
-# BLUETOOTH_ENABLE = yes	# Enable Bluetooth with the Adafruit EZ-Key HID
\ No newline at end of file
+# BLUETOOTH_ENABLE = yes	# Enable Bluetooth with the Adafruit EZ-Key HID
diff --git a/keyboards/illuminati/is0/rules.mk b/keyboards/illuminati/is0/rules.mk
index 065d0d2843..7baa8f4c3a 100644
--- a/keyboards/illuminati/is0/rules.mk
+++ b/keyboards/illuminati/is0/rules.mk
@@ -1,63 +1,16 @@
 # MCU name
 MCU = atmega32u2
 
-# 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(+60)
-OPT_DEFS += -DINTERRUPT_CONTROL_ENDPOINT
-
-
 # Bootloader selection
 #   Teensy       halfkay
 #   Pro Micro    caterina
 #   Atmel DFU    atmel-dfu
 #   LUFA DFU     lufa-dfu
 #   QMK DFU      qmk-dfu
-#   atmega32a    bootloadHID
+#   ATmega32A    bootloadHID
+#   ATmega328P   USBasp
 BOOTLOADER = atmel-dfu
 
-
-# If you don't know the bootloader type, then you can specify the
-# Boot Section Size in *bytes* by uncommenting out the OPT_DEFS line
-#   Teensy halfKay      512
-#   Teensy++ halfKay    1024
-#   Atmel DFU loader    4096
-#   LUFA bootloader     4096
-#   USBaspLoader        2048
-# OPT_DEFS += -DBOOTLOADER_SIZE=4096
-
-
 # Build Options
 #   change yes to no to disable
 #
diff --git a/keyboards/kbdfans/kbdpad_mk2/rules.mk b/keyboards/kbdfans/kbdpad_mk2/rules.mk
index 90614e9409..cfb65f5edf 100644
--- a/keyboards/kbdfans/kbdpad_mk2/rules.mk
+++ b/keyboards/kbdfans/kbdpad_mk2/rules.mk
@@ -1,63 +1,16 @@
 # MCU name
 MCU = atmega32u2
 
-# 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(+60)
-OPT_DEFS += -DINTERRUPT_CONTROL_ENDPOINT
-
-
 # Bootloader selection
 #   Teensy       halfkay
 #   Pro Micro    caterina
 #   Atmel DFU    atmel-dfu
 #   LUFA DFU     lufa-dfu
 #   QMK DFU      qmk-dfu
-#   atmega32a    bootloadHID
+#   ATmega32A    bootloadHID
+#   ATmega328P   USBasp
 BOOTLOADER = atmel-dfu
 
-
-# If you don't know the bootloader type, then you can specify the
-# Boot Section Size in *bytes* by uncommenting out the OPT_DEFS line
-#   Teensy halfKay      512
-#   Teensy++ halfKay    1024
-#   Atmel DFU loader    4096
-#   LUFA bootloader     4096
-#   USBaspLoader        2048
-# OPT_DEFS += -DBOOTLOADER_SIZE=4096
-
-
 # Build Options
 #   change yes to no to disable
 #
diff --git a/keyboards/meme/rules.mk b/keyboards/meme/rules.mk
index c9f2bd450a..621c2dded1 100644
--- a/keyboards/meme/rules.mk
+++ b/keyboards/meme/rules.mk
@@ -1,51 +1,15 @@
 # MCU name
 MCU = atmega32u2
 
-# 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(+60)
-OPT_DEFS += -DINTERRUPT_CONTROL_ENDPOINT
-
-
-# Boot Section Size in *bytes*
-#   Teensy halfKay   512
-#   Teensy++ halfKay 1024
-#   Atmel DFU loader 4096
-#   LUFA bootloader  4096
-#   USBaspLoader     2048
-OPT_DEFS += -DBOOTLOADER_SIZE=4096
-
+# Bootloader selection
+#   Teensy       halfkay
+#   Pro Micro    caterina
+#   Atmel DFU    atmel-dfu
+#   LUFA DFU     lufa-dfu
+#   QMK DFU      qmk-dfu
+#   ATmega32A    bootloadHID
+#   ATmega328P   USBasp
+BOOTLOADER = atmel-dfu
 
 # Build Options
 #   change yes to no to disable
diff --git a/keyboards/novelpad/rules.mk b/keyboards/novelpad/rules.mk
index e77a0d6515..54e4cea03b 100755
--- a/keyboards/novelpad/rules.mk
+++ b/keyboards/novelpad/rules.mk
@@ -1,17 +1,16 @@
 # MCU name
 MCU = atmega32u2
 
-
 # Bootloader selection
 #   Teensy       halfkay
 #   Pro Micro    caterina
 #   Atmel DFU    atmel-dfu
 #   LUFA DFU     lufa-dfu
 #   QMK DFU      qmk-dfu
-#   atmega32a    bootloadHID
+#   ATmega32A    bootloadHID
+#   ATmega328P   USBasp
 BOOTLOADER = atmel-dfu
 
-
 # Build Options
 #   comment out to disable the options.
 #
diff --git a/keyboards/primekb/prime_m/rules.mk b/keyboards/primekb/prime_m/rules.mk
index 72ad8325d3..615750bfb2 100644
--- a/keyboards/primekb/prime_m/rules.mk
+++ b/keyboards/primekb/prime_m/rules.mk
@@ -1,63 +1,16 @@
 # MCU name
 MCU = atmega32u2
 
-# 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(+60)
-OPT_DEFS += -DINTERRUPT_CONTROL_ENDPOINT
-
-
 # Bootloader selection
 #   Teensy       halfkay
 #   Pro Micro    caterina
 #   Atmel DFU    atmel-dfu
 #   LUFA DFU     lufa-dfu
 #   QMK DFU      qmk-dfu
-#   atmega32a    bootloadHID
+#   ATmega32A    bootloadHID
+#   ATmega328P   USBasp
 BOOTLOADER = atmel-dfu
 
-
-# If you don't know the bootloader type, then you can specify the
-# Boot Section Size in *bytes* by uncommenting out the OPT_DEFS line
-#   Teensy halfKay      512
-#   Teensy++ halfKay    1024
-#   Atmel DFU loader    4096
-#   LUFA bootloader     4096
-#   USBaspLoader        2048
-# OPT_DEFS += -DBOOTLOADER_SIZE=4096
-
-
 # Build Options
 #   change yes to no to disable
 #
diff --git a/keyboards/primekb/prime_o/rules.mk b/keyboards/primekb/prime_o/rules.mk
index 8d3b835f18..e9b7f1558b 100644
--- a/keyboards/primekb/prime_o/rules.mk
+++ b/keyboards/primekb/prime_o/rules.mk
@@ -1,63 +1,16 @@
 # MCU name
 MCU = atmega32u2
 
-# 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(+60)
-OPT_DEFS += -DINTERRUPT_CONTROL_ENDPOINT
-
-
 # Bootloader selection
 #   Teensy       halfkay
 #   Pro Micro    caterina
 #   Atmel DFU    atmel-dfu
 #   LUFA DFU     lufa-dfu
 #   QMK DFU      qmk-dfu
-#   atmega32a    bootloadHID
+#   ATmega32A    bootloadHID
+#   ATmega328P   USBasp
 BOOTLOADER = atmel-dfu
 
-
-# If you don't know the bootloader type, then you can specify the
-# Boot Section Size in *bytes* by uncommenting out the OPT_DEFS line
-#   Teensy halfKay      512
-#   Teensy++ halfKay    1024
-#   Atmel DFU loader    4096
-#   LUFA bootloader     4096
-#   USBaspLoader        2048
-# OPT_DEFS += -DBOOTLOADER_SIZE=4096
-
-
 # Build Options
 #   change yes to no to disable
 #
diff --git a/keyboards/sixkeyboard/rules.mk b/keyboards/sixkeyboard/rules.mk
index b718c7e65f..2befe17d8f 100644
--- a/keyboards/sixkeyboard/rules.mk
+++ b/keyboards/sixkeyboard/rules.mk
@@ -3,15 +3,15 @@ SRC = matrix.c
 # MCU name
 MCU = atmega16u2
 
-
-# Boot Section Size in *bytes*
-#   Teensy halfKay   512
-#   Teensy++ halfKay 1024
-#   Atmel DFU loader 4096
-#   LUFA bootloader  4096
-#   USBaspLoader     2048
-OPT_DEFS += -DBOOTLOADER_SIZE=4096
-
+# Bootloader selection
+#   Teensy       halfkay
+#   Pro Micro    caterina
+#   Atmel DFU    atmel-dfu
+#   LUFA DFU     lufa-dfu
+#   QMK DFU      qmk-dfu
+#   ATmega32A    bootloadHID
+#   ATmega328P   USBasp
+BOOTLOADER = atmel-dfu
 
 # Build Options
 #   comment out to disable the options.
diff --git a/keyboards/staryu/rules.mk b/keyboards/staryu/rules.mk
index ad4873a39a..52bb72ca7f 100755
--- a/keyboards/staryu/rules.mk
+++ b/keyboards/staryu/rules.mk
@@ -1,61 +1,16 @@
 # MCU name
 MCU = atmega32u2
 
-# 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(+60)
-OPT_DEFS += -DINTERRUPT_CONTROL_ENDPOINT
-
 # Bootloader selection
 #   Teensy       halfkay
 #   Pro Micro    caterina
 #   Atmel DFU    atmel-dfu
 #   LUFA DFU     lufa-dfu
 #   QMK DFU      qmk-dfu
-#   atmega32a    bootloadHID
+#   ATmega32A    bootloadHID
+#   ATmega328P   USBasp
 BOOTLOADER = lufa-dfu
 
-
-# If you don't know the bootloader type, then you can specify the
-# Boot Section Size in *bytes* by uncommenting out the OPT_DEFS line
-#   Teensy halfKay      512
-#   Teensy++ halfKay    1024
-#   Atmel DFU loader    4096
-#   LUFA bootloader     4096
-#   USBaspLoader        2048
-# OPT_DEFS += -DBOOTLOADER_SIZE=4096
-
-
 # Build Options
 #   comment out to disable the options.
 #
diff --git a/keyboards/ut472/rules.mk b/keyboards/ut472/rules.mk
index 6398eab21d..1dd477652b 100644
--- a/keyboards/ut472/rules.mk
+++ b/keyboards/ut472/rules.mk
@@ -1,53 +1,16 @@
 # MCU name
 MCU = atmega32u2
 
-# 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(+60)
-OPT_DEFS += -DINTERRUPT_CONTROL_ENDPOINT
-
 # Bootloader selection
 #   Teensy       halfkay
 #   Pro Micro    caterina
 #   Atmel DFU    atmel-dfu
 #   LUFA DFU     lufa-dfu
 #   QMK DFU      qmk-dfu
-#   atmega32a    bootloadHID
+#   ATmega32A    bootloadHID
+#   ATmega328P   USBasp
 BOOTLOADER = atmel-dfu
 
-
-
 # Build Options
 #   change yes to no to disable
 #
diff --git a/keyboards/xd004/v1/rules.mk b/keyboards/xd004/v1/rules.mk
index 9cc03498a7..e17ca648e1 100644
--- a/keyboards/xd004/v1/rules.mk
+++ b/keyboards/xd004/v1/rules.mk
@@ -1,17 +1,16 @@
 # MCU name
 MCU = atmega16u2
 
-
-# Boot Section Size in *bytes*
-#   Teensy halfKay   512
-#   Teensy++ halfKay 2048
-#   Atmel DFU loader 4096
-#   LUFA bootloader  4096
-#   USBaspLoader     2048
-OPT_DEFS += -DBOOTLOADER_SIZE=4096
+# Bootloader selection
+#   Teensy       halfkay
+#   Pro Micro    caterina
+#   Atmel DFU    atmel-dfu
+#   LUFA DFU     lufa-dfu
+#   QMK DFU      qmk-dfu
+#   ATmega32A    bootloadHID
+#   ATmega328P   USBasp
 BOOTLOADER = atmel-dfu
 
-
 # Build Options
 BOOTMAGIC_ENABLE = lite       # Virtual DIP switch configuration
 MOUSEKEY_ENABLE = no        # Mouse keys(+4700)