🔨 Upload to Optiboot at 115200 (#23403)

ini/avr.ini

 board_upload.maximum_size = 126976
 
 #
-# Melzi and clones (ATmega1284p)
-#
-[env:melzi]
-platform     = atmelavr
-extends      = env:sanguino1284p
-upload_speed = 57600
-
-#
 # Sanguinololu (ATmega1284p stock bootloader with tuned flags)
 #
 
 
 [env:sanguino1284p_optimized]
 platform    = atmelavr
-extends     = env:melzi
+extends     = env:sanguino1284p
 build_flags = ${tuned_1284p.build_flags}
 
 #
-# Melzi and clones (alias for sanguino1284p_optimized)
+# Melzi and clones (ATmega1284p)
 #
+[env:melzi]
+platform     = atmelavr
+extends      = env:sanguino1284p
+upload_speed = 57600
+
 [env:melzi_optimized]
-platform = atmelavr
-extends  = env:sanguino1284p_optimized
+platform     = atmelavr
+extends      = env:sanguino1284p_optimized
+upload_speed = 57600
 
 #
 # Melzi and clones (Optiboot bootloader)
 platform    = atmelavr
 extends     = env:melzi_optiboot
 build_flags = ${tuned_1284p.build_flags}
-
-#
-# AT90USB1286 boards using CDC bootloader
-# - BRAINWAVE
-# - BRAINWAVE_PRO
-# - SAV_MKI
-# - TEENSYLU
-#
-[env:at90usb1286_cdc]
-platform   = teensy
-extends    = common_avr8
-board      = marlin_at90usb1286
-lib_ignore = ${env:common_avr8.lib_ignore}, Teensy_ADC, NativeEthernet
-
-#
-# AT90USB1286 boards using DFU bootloader
-# - Printrboard
-# - Printrboard Rev.F
-# - ? 5DPRINT ?
-#
-[env:at90usb1286_dfu]
-platform = teensy
-extends  = env:at90usb1286_cdc

ini/teensy.ini

 #################################
 
 #
+# AT90USB1286 boards using CDC bootloader
+# e.g., BRAINWAVE, BRAINWAVE_PRO, SAV_MKI, TEENSYLU
+#
+[env:at90usb1286_cdc]
+platform   = teensy
+extends    = common_avr8
+board      = marlin_at90usb1286
+lib_ignore = ${env:common_avr8.lib_ignore}, Teensy_ADC, NativeEthernet
+
+#
+# AT90USB1286 boards using DFU bootloader
+# e.g., Printrboard, Printrboard Rev.F, 5DPRINT
+#
+[env:at90usb1286_dfu]
+platform = teensy
+extends  = env:at90usb1286_cdc
+
+#
 # Teensy++ 2.0
 #
 [env:teensy20]