Prepare ymdk/ymd75 for rev4 (#21484)

27 files changed, 727 insertions, 362 deletions

diff --git a/keyboards/ymdk/ymd75/config.h b/keyboards/ymdk/ymd75/config.h
deleted file mode 100644
index 4f0c47b20b..0000000000
--- a/keyboards/ymdk/ymd75/config.h
+++ /dev/null
@@ -1,32 +0,0 @@
-/*
-Base Copyright 2017 Luiz Ribeiro <luizribeiro@gmail.com>
-Modified 2017 Andrew Novak <ndrw.nvk@gmail.com>
-Modified 2018 Wayne Jones (WarmCatUK) <waynekjones@gmail.com>
-
-This program is free software: you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation, either version 2 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program.  If not, see <http://www.gnu.org/licenses/>.
-*/
-
-#pragma once
-
-#define RGBLIGHT_EFFECT_BREATHING
-#define RGBLIGHT_EFFECT_RAINBOW_MOOD
-#define RGBLIGHT_EFFECT_RAINBOW_SWIRL
-#define RGBLIGHT_EFFECT_SNAKE
-#define RGBLIGHT_EFFECT_KNIGHT
-#define RGBLIGHT_EFFECT_CHRISTMAS
-#define RGBLIGHT_EFFECT_STATIC_GRADIENT
-#define RGBLIGHT_EFFECT_RGB_TEST
-#define RGBLIGHT_EFFECT_ALTERNATING
-#define RGBLIGHT_EFFECT_TWINKLE
-#define DYNAMIC_KEYMAP_LAYER_COUNT 3
diff --git a/keyboards/ymdk/ymd75/info.json b/keyboards/ymdk/ymd75/info.json
deleted file mode 100644
index a19586fcc0..0000000000
--- a/keyboards/ymdk/ymd75/info.json
+++ /dev/null
@@ -1,286 +0,0 @@
-{
-    "keyboard_name": "YMD75 / MT84",
-    "manufacturer": "YMDK",
-    "url": "",
-    "maintainer": "qmk",
-    "usb": {
-        "vid": "0x20A0",
-        "pid": "0x422D"
-    },
-    "rgblight": {
-        "hue_steps": 12,
-        "saturation_steps": 15,
-        "brightness_steps": 18,
-        "led_count": 16
-    },
-    "ws2812": {
-        "pin": "E2"
-    },
-    "layouts": {
-        "LAYOUT": {
-            "layout": [
-                {"label": "Esc", "x": 0, "y": 0},
-                {"label": "F1", "x": 1, "y": 0},
-                {"label": "F2", "x": 2, "y": 0},
-                {"label": "F3", "x": 3, "y": 0},
-                {"label": "F4", "x": 4, "y": 0},
-                {"label": "F5", "x": 5, "y": 0},
-                {"label": "F6", "x": 6, "y": 0},
-                {"label": "F7", "x": 7, "y": 0},
-                {"label": "F8", "x": 8, "y": 0},
-                {"label": "F9", "x": 9, "y": 0},
-                {"label": "F10", "x": 10, "y": 0},
-                {"label": "F11", "x": 11, "y": 0},
-                {"label": "F12", "x": 12, "y": 0},
-                {"label": "PrtSc", "x": 13, "y": 0},
-                {"label": "Del", "x": 14, "y": 0},
-                {"label": "Fn", "x": 15, "y": 0},
-                {"label": "~", "x": 0, "y": 1},
-                {"label": "!", "x": 1, "y": 1},
-                {"label": "@", "x": 2, "y": 1},
-                {"label": "#", "x": 3, "y": 1},
-                {"label": "$", "x": 4, "y": 1},
-                {"label": "%", "x": 5, "y": 1},
-                {"label": "^", "x": 6, "y": 1},
-                {"label": "&", "x": 7, "y": 1},
-                {"label": "*", "x": 8, "y": 1},
-                {"label": "(", "x": 9, "y": 1},
-                {"label": ")", "x": 10, "y": 1},
-                {"label": "_", "x": 11, "y": 1},
-                {"label": "+", "x": 12, "y": 1},
-                {"label": "Backspace", "x": 13, "y": 1, "w": 2},
-                {"label": "Home", "x": 15, "y": 1},
-                {"label": "Tab", "x": 0, "y": 2, "w": 1.5},
-                {"label": "Q", "x": 1.5, "y": 2},
-                {"label": "W", "x": 2.5, "y": 2},
-                {"label": "E", "x": 3.5, "y": 2},
-                {"label": "R", "x": 4.5, "y": 2},
-                {"label": "T", "x": 5.5, "y": 2},
-                {"label": "Y", "x": 6.5, "y": 2},
-                {"label": "U", "x": 7.5, "y": 2},
-                {"label": "I", "x": 8.5, "y": 2},
-                {"label": "O", "x": 9.5, "y": 2},
-                {"label": "P", "x": 10.5, "y": 2},
-                {"label": "{", "x": 11.5, "y": 2},
-                {"label": "}", "x": 12.5, "y": 2},
-                {"label": "|", "x": 13.5, "y": 2, "w": 1.5},
-                {"label": "End", "x": 15, "y": 2},
-                {"label": "Caps Lock", "x": 0, "y": 3, "w": 1.75},
-                {"label": "A", "x": 1.75, "y": 3},
-                {"label": "S", "x": 2.75, "y": 3},
-                {"label": "D", "x": 3.75, "y": 3},
-                {"label": "F", "x": 4.75, "y": 3},
-                {"label": "G", "x": 5.75, "y": 3},
-                {"label": "H", "x": 6.75, "y": 3},
-                {"label": "J", "x": 7.75, "y": 3},
-                {"label": "K", "x": 8.75, "y": 3},
-                {"label": "L", "x": 9.75, "y": 3},
-                {"label": ":", "x": 10.75, "y": 3},
-                {"label": "\"", "x": 11.75, "y": 3},
-                {"label": "Enter", "x": 12.75, "y": 3, "w": 2.25},
-                {"label": "Page Up", "x": 15, "y": 3},
-                {"label": "Shift", "x": 0, "y": 4, "w": 2.25},
-                {"label": "Z", "x": 2.25, "y": 4},
-                {"label": "X", "x": 3.25, "y": 4},
-                {"label": "C", "x": 4.25, "y": 4},
-                {"label": "V", "x": 5.25, "y": 4},
-                {"label": "B", "x": 6.25, "y": 4},
-                {"label": "N", "x": 7.25, "y": 4},
-                {"label": "M", "x": 8.25, "y": 4},
-                {"label": "<", "x": 9.25, "y": 4},
-                {"label": ">", "x": 10.25, "y": 4},
-                {"label": "?", "x": 11.25, "y": 4},
-                {"label": "Shift", "x": 12.25, "y": 4, "w": 1.75},
-                {"label": "\u2191", "x": 14, "y": 4},
-                {"label": "Page Down", "x": 15, "y": 4},
-                {"label": "Ctrl", "x": 0, "y": 5, "w": 1.25},
-                {"label": "GUI", "x": 1.25, "y": 5, "w": 1.25},
-                {"label": "Alt", "x": 2.5, "y": 5, "w": 1.25},
-                {"x": 3.75, "y": 5, "w": 6.25},
-                {"label": "Alt", "x": 10, "y": 5},
-                {"label": "Fn", "x": 11, "y": 5},
-                {"label": "Ctrl", "x": 12, "y": 5},
-                {"label": "\u2190", "x": 13, "y": 5},
-                {"label": "\u2193", "x": 14, "y": 5},
-                {"label": "\u2192", "x": 15, "y": 5}
-            ]
-        },
-        "LAYOUT_75_iso": {
-            "layout": [
-                {"label": "Esc", "x": 0, "y": 0},
-                {"label": "F1", "x": 1, "y": 0},
-                {"label": "F2", "x": 2, "y": 0},
-                {"label": "F3", "x": 3, "y": 0},
-                {"label": "F4", "x": 4, "y": 0},
-                {"label": "F5", "x": 5, "y": 0},
-                {"label": "F6", "x": 6, "y": 0},
-                {"label": "F7", "x": 7, "y": 0},
-                {"label": "F8", "x": 8, "y": 0},
-                {"label": "F9", "x": 9, "y": 0},
-                {"label": "F10", "x": 10, "y": 0},
-                {"label": "F11", "x": 11, "y": 0},
-                {"label": "F12", "x": 12, "y": 0},
-                {"label": "PrtSc", "x": 13, "y": 0},
-                {"label": "Pause", "x": 14, "y": 0},
-                {"label": "Delete", "x": 15, "y": 0},
-                {"label": "~", "x": 0, "y": 1},
-                {"label": "1", "x": 1, "y": 1},
-                {"label": "2", "x": 2, "y": 1},
-                {"label": "3", "x": 3, "y": 1},
-                {"label": "4", "x": 4, "y": 1},
-                {"label": "5", "x": 5, "y": 1},
-                {"label": "6", "x": 6, "y": 1},
-                {"label": "7", "x": 7, "y": 1},
-                {"label": "8", "x": 8, "y": 1},
-                {"label": "9", "x": 9, "y": 1},
-                {"label": "0", "x": 10, "y": 1},
-                {"label": "_", "x": 11, "y": 1},
-                {"label": "+", "x": 12, "y": 1},
-                {"label": "Backspace", "x": 13, "y": 1, "w": 2},
-                {"label": "Home", "x": 15, "y": 1},
-                {"label": "Tab", "x": 0, "y": 2, "w": 1.5},
-                {"label": "Q", "x": 1.5, "y": 2},
-                {"label": "W", "x": 2.5, "y": 2},
-                {"label": "E", "x": 3.5, "y": 2},
-                {"label": "R", "x": 4.5, "y": 2},
-                {"label": "T", "x": 5.5, "y": 2},
-                {"label": "Y", "x": 6.5, "y": 2},
-                {"label": "U", "x": 7.5, "y": 2},
-                {"label": "I", "x": 8.5, "y": 2},
-                {"label": "O", "x": 9.5, "y": 2},
-                {"label": "P", "x": 10.5, "y": 2},
-                {"label": "{", "x": 11.5, "y": 2},
-                {"label": "}", "x": 12.5, "y": 2},
-                {"label": "Page Up", "x": 15, "y": 2},
-                {"label": "Caps Lock", "x": 0, "y": 3, "w": 1.75},
-                {"label": "A", "x": 1.75, "y": 3},
-                {"label": "S", "x": 2.75, "y": 3},
-                {"label": "D", "x": 3.75, "y": 3},
-                {"label": "F", "x": 4.75, "y": 3},
-                {"label": "G", "x": 5.75, "y": 3},
-                {"label": "H", "x": 6.75, "y": 3},
-                {"label": "J", "x": 7.75, "y": 3},
-                {"label": "K", "x": 8.75, "y": 3},
-                {"label": "L", "x": 9.75, "y": 3},
-                {"label": ":", "x": 10.75, "y": 3},
-                {"label": "@", "x": 11.75, "y": 3},
-                {"label": "~", "x": 12.75, "y": 3},
-                {"label": "Enter", "x": 13.75, "y": 2, "w": 1.25, "h": 2},
-                {"label": "Page Down", "x": 15, "y": 3},
-                {"label": "Shift", "x": 0, "y": 4, "w": 1.25},
-                {"label": "|", "x": 1.25, "y": 4},
-                {"label": "Z", "x": 2.25, "y": 4},
-                {"label": "X", "x": 3.25, "y": 4},
-                {"label": "C", "x": 4.25, "y": 4},
-                {"label": "V", "x": 5.25, "y": 4},
-                {"label": "B", "x": 6.25, "y": 4},
-                {"label": "N", "x": 7.25, "y": 4},
-                {"label": "M", "x": 8.25, "y": 4},
-                {"label": "<", "x": 9.25, "y": 4},
-                {"label": ">", "x": 10.25, "y": 4},
-                {"label": "?", "x": 11.25, "y": 4},
-                {"label": "Shift", "x": 12.25, "y": 4, "w": 1.75},
-                {"label": "Up", "x": 14, "y": 4},
-                {"label": "End", "x": 15, "y": 4},
-                {"label": "Ctrl", "x": 0, "y": 5, "w": 1.25},
-                {"label": "Win", "x": 1.25, "y": 5, "w": 1.25},
-                {"label": "Alt", "x": 2.5, "y": 5, "w": 1.25},
-                {"label": "Space", "x": 3.75, "y": 5, "w": 6.25},
-                {"label": "AltGr", "x": 10, "y": 5},
-                {"label": "Menu", "x": 11, "y": 5},
-                {"label": "Ctrl", "x": 12, "y": 5},
-                {"label": "Left", "x": 13, "y": 5},
-                {"label": "Down", "x": 14, "y": 5},
-                {"label": "Right", "x": 15, "y": 5}
-            ]
-        },
-        "LAYOUT_75_iso_rwkl": {
-            "layout": [
-                {"label": "Esc", "x": 0, "y": 0},
-                {"label": "F1", "x": 1, "y": 0},
-                {"label": "F2", "x": 2, "y": 0},
-                {"label": "F3", "x": 3, "y": 0},
-                {"label": "F4", "x": 4, "y": 0},
-                {"label": "F5", "x": 5, "y": 0},
-                {"label": "F6", "x": 6, "y": 0},
-                {"label": "F7", "x": 7, "y": 0},
-                {"label": "F8", "x": 8, "y": 0},
-                {"label": "F9", "x": 9, "y": 0},
-                {"label": "F10", "x": 10, "y": 0},
-                {"label": "F11", "x": 11, "y": 0},
-                {"label": "F12", "x": 12, "y": 0},
-                {"label": "PrtSc", "x": 13, "y": 0},
-                {"label": "Pause", "x": 14, "y": 0},
-                {"label": "Delete", "x": 15, "y": 0},
-                {"label": "~", "x": 0, "y": 1},
-                {"label": "1", "x": 1, "y": 1},
-                {"label": "2", "x": 2, "y": 1},
-                {"label": "3", "x": 3, "y": 1},
-                {"label": "4", "x": 4, "y": 1},
-                {"label": "5", "x": 5, "y": 1},
-                {"label": "6", "x": 6, "y": 1},
-                {"label": "7", "x": 7, "y": 1},
-                {"label": "8", "x": 8, "y": 1},
-                {"label": "9", "x": 9, "y": 1},
-                {"label": "0", "x": 10, "y": 1},
-                {"label": "_", "x": 11, "y": 1},
-                {"label": "+", "x": 12, "y": 1},
-                {"label": "Backspace", "x": 13, "y": 1, "w": 2},
-                {"label": "Home", "x": 15, "y": 1},
-                {"label": "Tab", "x": 0, "y": 2, "w": 1.5},
-                {"label": "Q", "x": 1.5, "y": 2},
-                {"label": "W", "x": 2.5, "y": 2},
-                {"label": "E", "x": 3.5, "y": 2},
-                {"label": "R", "x": 4.5, "y": 2},
-                {"label": "T", "x": 5.5, "y": 2},
-                {"label": "Y", "x": 6.5, "y": 2},
-                {"label": "U", "x": 7.5, "y": 2},
-                {"label": "I", "x": 8.5, "y": 2},
-                {"label": "O", "x": 9.5, "y": 2},
-                {"label": "P", "x": 10.5, "y": 2},
-                {"label": "{", "x": 11.5, "y": 2},
-                {"label": "}", "x": 12.5, "y": 2},
-                {"label": "Page Up", "x": 15, "y": 2},
-                {"label": "Caps Lock", "x": 0, "y": 3, "w": 1.75},
-                {"label": "A", "x": 1.75, "y": 3},
-                {"label": "S", "x": 2.75, "y": 3},
-                {"label": "D", "x": 3.75, "y": 3},
-                {"label": "F", "x": 4.75, "y": 3},
-                {"label": "G", "x": 5.75, "y": 3},
-                {"label": "H", "x": 6.75, "y": 3},
-                {"label": "J", "x": 7.75, "y": 3},
-                {"label": "K", "x": 8.75, "y": 3},
-                {"label": "L", "x": 9.75, "y": 3},
-                {"label": ":", "x": 10.75, "y": 3},
-                {"label": "@", "x": 11.75, "y": 3},
-                {"label": "~", "x": 12.75, "y": 3},
-                {"label": "Enter", "x": 13.75, "y": 2, "w": 1.25, "h": 2},
-                {"label": "Page Down", "x": 15, "y": 3},
-                {"label": "Shift", "x": 0, "y": 4, "w": 1.25},
-                {"label": "|", "x": 1.25, "y": 4},
-                {"label": "Z", "x": 2.25, "y": 4},
-                {"label": "X", "x": 3.25, "y": 4},
-                {"label": "C", "x": 4.25, "y": 4},
-                {"label": "V", "x": 5.25, "y": 4},
-                {"label": "B", "x": 6.25, "y": 4},
-                {"label": "N", "x": 7.25, "y": 4},
-                {"label": "M", "x": 8.25, "y": 4},
-                {"label": "<", "x": 9.25, "y": 4},
-                {"label": ">", "x": 10.25, "y": 4},
-                {"label": "?", "x": 11.25, "y": 4},
-                {"label": "Shift", "x": 12.25, "y": 4, "w": 1.75},
-                {"label": "Up", "x": 14, "y": 4},
-                {"label": "End", "x": 15, "y": 4},
-                {"label": "Ctrl", "x": 0, "y": 5, "w": 1.25},
-                {"label": "Win", "x": 1.25, "y": 5, "w": 1.25},
-                {"label": "Alt", "x": 2.5, "y": 5, "w": 1.25},
-                {"label": "Space", "x": 3.75, "y": 5, "w": 6.25},
-                {"label": "AltGr", "x": 10, "y": 5, "w": 1.5},
-                {"label": "Ctrl", "x": 11.5, "y": 5, "w": 1.5},
-                {"label": "Left", "x": 13, "y": 5},
-                {"label": "Down", "x": 14, "y": 5},
-                {"label": "Right", "x": 15, "y": 5}
-            ]
-        }
-    }
-}
diff --git a/keyboards/ymdk/ymd75/readme.md b/keyboards/ymdk/ymd75/readme.md
index 78b4d089af..3a66b428db 100644
--- a/keyboards/ymdk/ymd75/readme.md
+++ b/keyboards/ymdk/ymd75/readme.md
@@ -2,23 +2,11 @@
 
 75% keyboard from YMDK. YMDK sell the board and name it "YMD75", however revision 1 of the PCB has "MT84" printed on both sides.
 
-This firmware can also be flashed onto the KBDFans KBD75 Round 2 Bootmapper Client boards sold during the mid-2018 timeframe.
-
-* Keyboard Maintainer: [Wayne K Jones](github.com/WarmCatUK)
-* Hardware Supported: 
-   - rev1 (ATmega32a) 
-   - rev2 (ATmega32a) 
-   - rev3 (ATmega32u4)
-* Hardware Availability: <https://www.aliexpress.com/item/32812690592.html>
-
-Make example for this keyboard (after setting up your build environment):
-
-    make ymdk/ymd75/rev1:default
-
-Flashing example for this keyboard ([after setting up the bootloadHID flashing environment](https://docs.qmk.fm/#/flashing_bootloadhid))
-
-    make ymdk/ymd75/rev1:default:flash
-
-**Reset Key**: Hold down the key located at *Key below the top right key*, commonly programmed as *Backspace* while plugging in the keyboard. On PCB revision 2, enter the bootloader by holding `L_CTRL` while plugging in the keyboard.
+* Hardware Supported:
+    - rev1 (ATmega32a)
+        - This firmware can also be flashed onto the KBDFans KBD75 Round 2 Bootmapper Client boards sold during the mid-2018 timeframe.
+    - rev2 (ATmega32a)
+    - rev3 (ATmega32u4)
+    - rev4 (APM32F103)
 
 See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs).
diff --git a/keyboards/ymdk/ymd75/rev1/info.json b/keyboards/ymdk/ymd75/rev1/info.json
index 0f280a2eca..5f35c77bc2 100644
--- a/keyboards/ymdk/ymd75/rev1/info.json
+++ b/keyboards/ymdk/ymd75/rev1/info.json
@@ -1,5 +1,11 @@
 {
+    "keyboard_name": "YMD75 / MT84",
+    "manufacturer": "YMDK",
+    "url": "",
+    "maintainer": "qmk",
     "usb": {
+        "vid": "0x20A0",
+        "pid": "0x422D",
         "device_version": "1.0.0"
     },
     "matrix_pins": {
@@ -14,9 +20,27 @@
     "ws2812": {
         "driver": "i2c"
     },
+    "rgblight": {
+        "led_count": 16,
+        "animations": {
+            "alternating": true,
+            "breathing": true,
+            "christmas": true,
+            "knight": true,
+            "rainbow_mood": true,
+            "rainbow_swirl": true,
+            "rgb_test": true,
+            "snake": true,
+            "static_gradient": true,
+            "twinkle": true
+        }
+    },
     "indicators": {
         "caps_lock": "D1"
     },
+    "dynamic_keymap": {
+        "layer_count": 3
+    },
     "processor": "atmega32a",
     "bootloader": "bootloadhid",
     "layouts": {
diff --git a/keyboards/ymdk/ymd75/keymaps/default/keymap.c b/keyboards/ymdk/ymd75/rev1/keymaps/default/keymap.c
index e51f88bb43..e51f88bb43 100644
--- a/keyboards/ymdk/ymd75/keymaps/default/keymap.c
+++ b/keyboards/ymdk/ymd75/rev1/keymaps/default/keymap.c
diff --git a/keyboards/ymdk/ymd75/keymaps/default_iso/keymap.c b/keyboards/ymdk/ymd75/rev1/keymaps/default_iso/keymap.c
index 5041b72b9f..6e14c7ceb0 100644
--- a/keyboards/ymdk/ymd75/keymaps/default_iso/keymap.c
+++ b/keyboards/ymdk/ymd75/rev1/keymaps/default_iso/keymap.c
@@ -1,3 +1,21 @@
+/*
+Copyright 2017 Luiz Ribeiro <luizribeiro@gmail.com>
+Modified 2018 Wayne K Jones <github.com/WarmCatUK>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
 #include QMK_KEYBOARD_H
 
 const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
diff --git a/keyboards/ymdk/ymd75/keymaps/default_iso_rwkl/keymap.c b/keyboards/ymdk/ymd75/rev1/keymaps/default_iso_rwkl/keymap.c
index 0db1c8d288..ba3fde9cbe 100644
--- a/keyboards/ymdk/ymd75/keymaps/default_iso_rwkl/keymap.c
+++ b/keyboards/ymdk/ymd75/rev1/keymaps/default_iso_rwkl/keymap.c
@@ -1,3 +1,21 @@
+/*
+Copyright 2017 Luiz Ribeiro <luizribeiro@gmail.com>
+Modified 2018 Wayne K Jones <github.com/WarmCatUK>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
 #include QMK_KEYBOARD_H
 
 const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
diff --git a/keyboards/ymdk/ymd75/keymaps/via/keymap.c b/keyboards/ymdk/ymd75/rev1/keymaps/via/keymap.c
index e1b91490c3..0d39958db6 100644
--- a/keyboards/ymdk/ymd75/keymaps/via/keymap.c
+++ b/keyboards/ymdk/ymd75/rev1/keymaps/via/keymap.c
@@ -1,18 +1,18 @@
- /* Copyright 2021 kshpits 
-  * 
-  * This program is free software: you can redistribute it and/or modify 
-  * it under the terms of the GNU General Public License as published by 
-  * the Free Software Foundation, either version 2 of the License, or 
-  * (at your option) any later version. 
-  * 
-  * This program is distributed in the hope that it will be useful, 
-  * but WITHOUT ANY WARRANTY; without even the implied warranty of 
-  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
-  * GNU General Public License for more details. 
-  * 
-  * You should have received a copy of the GNU General Public License 
-  * along with this program.  If not, see <http://www.gnu.org/licenses/>. 
-  */ 
+/* Copyright 2021 kshpits 
+ * 
+ * This program is free software: you can redistribute it and/or modify 
+ * it under the terms of the GNU General Public License as published by 
+ * the Free Software Foundation, either version 2 of the License, or 
+ * (at your option) any later version. 
+ * 
+ * This program is distributed in the hope that it will be useful, 
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of 
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
+ * GNU General Public License for more details. 
+ * 
+ * You should have received a copy of the GNU General Public License 
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>. 
+ */
 
 #include QMK_KEYBOARD_H
 
@@ -49,13 +49,5 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
         _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,       _______,                 _______,
         _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,                      KC_VOLU,  _______,
         _______,  _______,  _______,                      _______,                                _______,  _______,  KC_APP,            KC_MPRV,  KC_VOLD,  KC_MNXT
-    ),
-	[2] = LAYOUT(
-        _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,
-        _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,            _______,
-        _______,  _______,  _______,  _______  ,_______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,            _______,
-        _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,       _______,                 _______,
-        _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,                      _______,  _______,
-        _______,  _______,  _______,                      _______,                                _______,  _______,  _______,            _______,  _______,  _______
-    ),
+    )
 };
diff --git a/keyboards/ymdk/ymd75/keymaps/via/rules.mk b/keyboards/ymdk/ymd75/rev1/keymaps/via/rules.mk
index 152460f304..152460f304 100644
--- a/keyboards/ymdk/ymd75/keymaps/via/rules.mk
+++ b/keyboards/ymdk/ymd75/rev1/keymaps/via/rules.mk
diff --git a/keyboards/ymdk/ymd75/rev1/readme.md b/keyboards/ymdk/ymd75/rev1/readme.md
new file mode 100644
index 0000000000..e4784d4eb9
--- /dev/null
+++ b/keyboards/ymdk/ymd75/rev1/readme.md
@@ -0,0 +1,27 @@
+# YMD75 / MT84
+
+75% keyboard from YMDK. YMDK sell the board and name it "YMD75", however revision 1 of the PCB has "MT84" printed on both sides.
+
+This firmware can also be flashed onto the KBDFans KBD75 Round 2 Bootmapper Client boards sold during the mid-2018 timeframe.
+
+* Keyboard Maintainer: [Wayne K Jones](github.com/WarmCatUK)
+* Hardware Supported: rev1 (ATmega32a)
+* Hardware Availability: <https://www.aliexpress.com/item/32812690592.html>
+
+Make example for this keyboard (after setting up your build environment):
+
+    make ymdk/ymd75/rev1:default
+
+Flashing example for this keyboard ([after setting up the bootloadHID flashing environment](https://docs.qmk.fm/#/flashing_bootloadhid))
+
+    make ymdk/ymd75/rev1:default:flash
+
+See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs).
+
+## Bootloader
+
+Enter the bootloader in 3 ways:
+
+* **Bootmagic reset**: Hold down the key at (0,0) in the matrix (usually the top left key or Escape) and plug in the keyboard
+* **Reset Key**: Hold down the key located at *Key below the top right key*, commonly programmed as *Backspace* while plugging in the keyboard.
+* **Keycode in layout**: Press the key mapped to `QK_BOOT` if it is available
diff --git a/keyboards/ymdk/ymd75/rev2/info.json b/keyboards/ymdk/ymd75/rev2/info.json
index f51a7ed330..f20a19ee97 100644
--- a/keyboards/ymdk/ymd75/rev2/info.json
+++ b/keyboards/ymdk/ymd75/rev2/info.json
@@ -1,5 +1,11 @@
 {
+    "keyboard_name": "YMD75 / MT84",
+    "manufacturer": "YMDK",
+    "url": "",
+    "maintainer": "qmk",
     "usb": {
+        "vid": "0x20A0",
+        "pid": "0x422D",
         "device_version": "2.0.0"
     },
     "matrix_pins": {
@@ -14,9 +20,27 @@
     "ws2812": {
         "driver": "i2c"
     },
+    "rgblight": {
+        "led_count": 16,
+        "animations": {
+            "alternating": true,
+            "breathing": true,
+            "christmas": true,
+            "knight": true,
+            "rainbow_mood": true,
+            "rainbow_swirl": true,
+            "rgb_test": true,
+            "snake": true,
+            "static_gradient": true,
+            "twinkle": true
+        }
+    },
     "indicators": {
         "caps_lock": "D1"
     },
+    "dynamic_keymap": {
+        "layer_count": 3
+    },
     "processor": "atmega32a",
     "bootloader": "bootloadhid",
     "layouts": {
diff --git a/keyboards/ymdk/ymd75/rev2/keymaps/default/keymap.c b/keyboards/ymdk/ymd75/rev2/keymaps/default/keymap.c
new file mode 100644
index 0000000000..e51f88bb43
--- /dev/null
+++ b/keyboards/ymdk/ymd75/rev2/keymaps/default/keymap.c
@@ -0,0 +1,94 @@
+/*
+Copyright 2017 Luiz Ribeiro <luizribeiro@gmail.com>
+Modified 2018 Wayne K Jones <github.com/WarmCatUK>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include QMK_KEYBOARD_H
+
+#define _MAIN 0
+#define _FN 1
+
+enum custom_keycodes {
+    P_MACRO = SAFE_RANGE
+};
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+    
+    /* 0: Main Layer
+     * ┌─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┐
+     * │ ESC │ F1  │ F2  │ F3  │ F4  │ F5  │ F6  │ F7  │ F8  │ F9  │ F10 │ F11 │ F12 │PRSCR│ DEL │ FN  │
+     * ├─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┴─────┼─────┤
+     * │  `  │  1  │  2  │  3  │  4  │  5  │  6  │  7  │  8  │  9  │  0  │  -  │  =  │ BACKSPACE │HOME │
+     * ├─────┴──┬──┴──┬──┴──┬──┴──┬──┴──┬──┴──┬──┴──┬──┴──┬──┴──┬──┴──┬──┴──┬──┴──┬──┴──┬────────┼─────┤
+     * │  TAB   │  Q  │  W  │  E  │  R  │  T  │  Y  │  U  │  I  │  O  │  P  │  [  │  ]  │   \    │ END │
+     * ├────────┴┬────┴┬────┴┬────┴┬────┴┬────┴┬────┴┬────┴┬────┴┬────┴┬────┴┬────┴┬────┴────────┼─────┤
+     * │  CAPS   │  A  │  S  │  D  │  F  │  G  │  H  │  J  │  K  │  L  │  ;  │  '  │    RETURN   │PG_UP│
+     * ├─────────┴──┬──┴──┬──┴──┬──┴──┬──┴──┬──┴──┬──┴──┬──┴──┬──┴──┬──┴──┬──┴──┬──┴───────┬─────┼─────┤
+     * │   LSHIFT   │  Z  │  X  │  C  │  V  │  B  │  N  │  M  │  ,  │  .  │  /  │  RSHIFT  │ UP  │PG_DN│
+     * ├──────┬─────┴┬────┴─┬───┴─────┴─────┴─────┴─────┴─────┴────┬┴───