MKS 12864 OLED pins for SGEN-L (#16188)

Marlin/src/pins/lpc1768/pins_MKS_SGEN_L.h

@@ -203,18 +203,34 @@
     #define LCD_PINS_D4    P0_17
 
   #else
-    #define LCD_PINS_RS    P0_16
 
     #define BTN_EN1        P3_25
     #define BTN_EN2        P3_26
 
-    #define LCD_PINS_ENABLE P0_18
-    #define LCD_PINS_D4    P0_15
-
     #define LCD_SDSS       P0_28
     #define SD_DETECT_PIN  P0_27
 
+    #if ENABLED(MKS_12864OLED_SSD1306)
+
+      #define LCD_PINS_DC  P0_17
+      #define DOGLCD_CS    P0_16
+      #define DOGLCD_A0    LCD_PINS_DC
+      #define DOGLCD_SCK   P0_15
+      #define DOGLCD_MOSI  P0_18
+
+      #define LCD_PINS_RS  P1_00
+      #define LCD_PINS_D7  P1_22
+      #define KILL_PIN     -1 // NC
+
+    #else // !MKS_12864OLED_SSD1306
+
+      #define LCD_PINS_RS  P0_16
+
+      #define LCD_PINS_ENABLE P0_18
+      #define LCD_PINS_D4  P0_15
+
       #if ENABLED(FYSETC_MINI_12864)
+
         #define DOGLCD_CS  P0_18
         #define DOGLCD_A0  P0_16
         #define DOGLCD_SCK P0_07
@@ -256,7 +272,9 @@
 
       #endif // !FYSETC_MINI_12864
 
-  #endif
+    #endif // !MKS_12864OLED_SSD1306
+
+  #endif // !CR10_STOCKDISPLAY
 
 #endif // HAS_SPI_LCD