From 8a24ff94d1e66211b0941e9110001d37a94fa460 Mon Sep 17 00:00:00 2001
From: Dave Johnson <davejohnson3000@gmail.com>
Date: Thu, 26 Jul 2018 03:58:28 -0700
Subject: [PATCH] AT90USB1286 PIO cleanup and optimization (#11230)

-normalize `env` and `board` to lowercase naming convention.
-make board `name` follow descriptive convention.
-implement `-fsingle-precision-constant` compile optimization per https://github.com/MarlinFirmware/Marlin/pull/11178#issuecomment-401673901
-fix typo in 5DPRINT entry.
---
 Marlin/src/pins/pins.h                             | 14 +++++++-------
 .../boards/{at90USB1286.json => at90usb1286.json}  |  4 ++--
 platformio.ini                                     |  8 ++++----
 3 files changed, 13 insertions(+), 13 deletions(-)
 rename buildroot/share/PlatformIO/boards/{at90USB1286.json => at90usb1286.json} (77%)

diff --git a/Marlin/src/pins/pins.h b/Marlin/src/pins/pins.h
index e4ab0b12c..1d2452afe 100644
--- a/Marlin/src/pins/pins.h
+++ b/Marlin/src/pins/pins.h
@@ -252,21 +252,21 @@
 //
 
 #elif MB(TEENSYLU)
-  #include "pins_TEENSYLU.h"          // AT90USB1286, AT90USB1286P                  env:at90USB1286_CDC
+  #include "pins_TEENSYLU.h"          // AT90USB1286, AT90USB1286P                  env:at90usb1286_cdc
 #elif MB(PRINTRBOARD)
-  #include "pins_PRINTRBOARD.h"       // AT90USB1286                                env:at90USB1286_DFU
+  #include "pins_PRINTRBOARD.h"       // AT90USB1286                                env:at90usb1286_dfu
 #elif MB(PRINTRBOARD_REVF)
-  #include "pins_PRINTRBOARD_REVF.h"  // AT90USB1286                                env:at90USB1286_DFU
+  #include "pins_PRINTRBOARD_REVF.h"  // AT90USB1286                                env:at90usb1286_dfu
 #elif MB(BRAINWAVE)
-  #include "pins_BRAINWAVE.h"         // AT90USB646                                 env:at90USB1286_CDC
+  #include "pins_BRAINWAVE.h"         // AT90USB646                                 env:at90usb1286_cdc
 #elif MB(BRAINWAVE_PRO)
-  #include "pins_BRAINWAVE_PRO.h"     // AT90USB1286                                env:at90USB1286_CDC
+  #include "pins_BRAINWAVE_PRO.h"     // AT90USB1286                                env:at90usb1286_cdc
 #elif MB(SAV_MKI)
-  #include "pins_SAV_MKI.h"           // AT90USB1286                                env:at90USB1286_CDC
+  #include "pins_SAV_MKI.h"           // AT90USB1286                                env:at90usb1286_cdc
 #elif MB(TEENSY2)
   #include "pins_TEENSY2.h"           // AT90USB1286                                env:teensy20
 #elif MB(5DPRINT)
-  #include "pins_5DPRINT.h"           // AT90USB1286                                ?env:at90USB1286_DFU
+  #include "pins_5DPRINT.h"           // AT90USB1286                                env:at90usb1286_dfu
 
 //
 // LPC1768 ARM Cortex M3
diff --git a/buildroot/share/PlatformIO/boards/at90USB1286.json b/buildroot/share/PlatformIO/boards/at90usb1286.json
similarity index 77%
rename from buildroot/share/PlatformIO/boards/at90USB1286.json
rename to buildroot/share/PlatformIO/boards/at90usb1286.json
index f8d82d123..63c9ce44d 100644
--- a/buildroot/share/PlatformIO/boards/at90USB1286.json
+++ b/buildroot/share/PlatformIO/boards/at90usb1286.json
@@ -1,14 +1,14 @@
 {
   "build": {
     "core": "teensy",
-    "extra_flags": "-DTEENSY2PP",
+    "extra_flags": "-DTEENSY2PP  -fsingle-precision-constant",
     "f_cpu": "16000000L",
     "mcu": "at90usb1286"
   },
   "frameworks": [
     "arduino"
   ],
-  "name": "at90USB1286.json",
+  "name": "Atmel AT90USB1286 based",
   "upload": {
     "maximum_ram_size": 8192,
     "maximum_size": 122880,
diff --git a/platformio.ini b/platformio.ini
index 837600c3c..ba543e4f6 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -81,10 +81,10 @@ monitor_speed     = 250000
 # - SAV_MKI
 # - TEENSYLU
 #
-[env:at90USB1286_CDC]
+[env:at90usb1286_cdc]
 platform      = teensy
 framework     = arduino
-board         = at90USB1286
+board         = at90usb1286
 build_flags   = ${common.build_flags}
 lib_deps      = ${common.lib_deps}
 lib_ldf_mode  = deep+
@@ -98,10 +98,10 @@ monitor_speed = 250000
 # - PrintrBoard Rev.F
 # - ? 5DPRINT ?
 #
-[env:at90USB1286_DFU]
+[env:at90usb1286_dfu]
 platform      = teensy
 framework     = arduino
-board         = at90USB1286
+board         = at90usb1286
 build_flags   = ${common.build_flags}
 lib_deps      = ${common.lib_deps}
 lib_ldf_mode  = deep+