HAS_SDCARD_CONNECTION is more obsolete

Marlin/Configuration_adv.h

@@ -1172,18 +1172,16 @@
   // Add an optimized binary file transfer mode, initiated with 'M28 B1'
   //#define BINARY_FILE_TRANSFER
 
-  #if HAS_SDCARD_CONNECTION
+  /**
-    /**
+   * Set this option to one of the following (or the board's defaults apply):
-     * Set this option to one of the following (or the board's defaults apply):
+   *
-     *
+   *           LCD - Use the SD drive in the external LCD controller.
-     *           LCD - Use the SD drive in the external LCD controller.
+   *       ONBOARD - Use the SD drive on the control board. (No SD_DETECT_PIN. M21 to init.)
-     *       ONBOARD - Use the SD drive on the control board. (No SD_DETECT_PIN. M21 to init.)
+   *  CUSTOM_CABLE - Use a custom cable to access the SD (as defined in a pins file).
-     *  CUSTOM_CABLE - Use a custom cable to access the SD (as defined in a pins file).
+   *
-     *
+   * :[ 'LCD', 'ONBOARD', 'CUSTOM_CABLE' ]
-     * :[ 'LCD', 'ONBOARD', 'CUSTOM_CABLE' ]
+   */
-     */
+  //#define SDCARD_CONNECTION LCD
-    //#define SDCARD_CONNECTION LCD
-  #endif
 
 #endif // SDSUPPORT
 

Marlin/src/inc/Conditionals_LCD.h

@@ -571,8 +571,6 @@
 
 #define IS_RE_ARM_BOARD MB(RAMPS_14_RE_ARM_EFB, RAMPS_14_RE_ARM_EEB, RAMPS_14_RE_ARM_EFF, RAMPS_14_RE_ARM_EEF, RAMPS_14_RE_ARM_SF)
 
-#define HAS_SDCARD_CONNECTION EITHER(TARGET_LPC1768, ADAFRUIT_GRAND_CENTRAL_M4)
-
 #define HAS_LINEAR_E_JERK (DISABLED(CLASSIC_JERK) && ENABLED(LIN_ADVANCE))
 
 #ifndef SPI_SPEED

Marlin/src/pins/stm32/pins_BTT_SKR_PRO_V1_1.h

@@ -182,6 +182,10 @@
 // Misc. Functions
 //
 
+#ifndef SDCARD_CONNECTION
+  #define SDCARD_CONNECTION LCD
+#endif
+
 //
 // Onboard SD card
 //   NOT compatible with LCD

Marlin/src/pins/stm32/pins_STEVAL_3DP001V1.h

@@ -236,7 +236,11 @@
 #define SDIO_CK_PIN       28   // PC12  SDIO_CK
 #define SDIO_CMD_PIN      29   // PD2   SDIO_CMD
 
-#if !defined(SDCARD_CONNECTION) || SDCARD_CONNECTION == ONBOARD
+#ifndef SDCARD_CONNECTION
+  #define SDCARD_CONNECTION ONBOARD
+#endif
+
+#if SDCARD_CONNECTION == ONBOARD
   #define SDIO_SUPPORT     // Use SDIO for onboard SD
 
   #ifndef SDIO_SUPPORT