1 files changed, 55 insertions, 0 deletions
diff --git a/Marlin/src/HAL/LINUX/spi_pins.h b/Marlin/src/HAL/LINUX/spi_pins.h
new file mode 100644
index 0000000..33136ac
--- /dev/null
+++ b/Marlin/src/HAL/LINUX/spi_pins.h
@@ -0,0 +1,55 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 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
+
+#include "../../core/macros.h"
+#include "../../inc/MarlinConfigPre.h"
+
+#if BOTH(HAS_MARLINUI_U8GLIB, SDSUPPORT) && (LCD_PINS_D4 == SD_SCK_PIN || LCD_PINS_ENABLE == SD_MOSI_PIN || DOGLCD_SCK == SD_SCK_PIN || DOGLCD_MOSI == SD_MOSI_PIN)
+  #define LPC_SOFTWARE_SPI  // If the SD card and LCD adapter share the same SPI pins, then software SPI is currently
+                            // needed due to the speed and mode required for communicating with each device being different.
+                            // This requirement can be removed if the SPI access to these devices is updated to use
+                            // spiBeginTransaction.
+#endif
+
+// Onboard SD
+//#define SD_SCK_PIN     P0_07
+//#define SD_MISO_PIN    P0_08
+//#define SD_MOSI_PIN    P0_09
+//#define SD_SS_PIN      P0_06
+
+// External SD
+#ifndef SD_SCK_PIN
+  #define SD_SCK_PIN        50
+#endif
+#ifndef SD_MISO_PIN
+  #define SD_MISO_PIN       51
+#endif
+#ifndef SD_MOSI_PIN
+  #define SD_MOSI_PIN       52
+#endif
+#ifndef SD_SS_PIN
+  #define SD_SS_PIN         53
+#endif
+#ifndef SDSS
+  #define SDSS       SD_SS_PIN
+#endif