🎨 Pins and SDIO cleanup

Marlin/src/HAL/STM32/sdio.cpp

@@ -28,6 +28,8 @@
 
 #if ENABLED(SDIO_SUPPORT)
 
+#include "sdio.h"
+
 #include <stdint.h>
 #include <stdbool.h>
 
@@ -49,14 +51,6 @@
   #error "SDIO only supported with STM32F103xE, STM32F103xG, STM32F4xx, or STM32F7xx."
 #endif
 
-// Fixed
-#define SDIO_D0_PIN   PC8
-#define SDIO_D1_PIN   PC9
-#define SDIO_D2_PIN   PC10
-#define SDIO_D3_PIN   PC11
-#define SDIO_CK_PIN   PC12
-#define SDIO_CMD_PIN  PD2
-
 SD_HandleTypeDef hsd;  // create SDIO structure
 // F4 supports one DMA for RX and another for TX, but Marlin will never
 // do read and write at same time, so we use the same DMA for both.

Marlin/src/HAL/STM32/sdio.h

@@ -0,0 +1,29 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2021 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * 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 3 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 <https://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+#define SDIO_D0_PIN   PC8
+#define SDIO_D1_PIN   PC9
+#define SDIO_D2_PIN   PC10
+#define SDIO_D3_PIN   PC11
+#define SDIO_CK_PIN   PC12
+#define SDIO_CMD_PIN  PD2