From f433b2c4338294bbe3189b58d6223a31a2bebb96 Mon Sep 17 00:00:00 2001
From: InsanityAutomation
 <38436470+InsanityAutomation@users.noreply.github.com>
Date: Sat, 20 Apr 2024 21:27:56 -0400
Subject: [PATCH] =?UTF-8?q?=F0=9F=94=A7=20Add=20RAMPS=20TMC=20SPI=20pins?=
 =?UTF-8?q?=20when=20!TMC=5FUSE=5FSW=5FSPI=20(#26960)?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

* Allows RAMPS to auto assign HW SPI Pins for TMC
---
 Marlin/src/pins/ramps/pins_RAMPS.h | 30 +++++++++++++++++++++---------
 1 file changed, 21 insertions(+), 9 deletions(-)

diff --git a/Marlin/src/pins/ramps/pins_RAMPS.h b/Marlin/src/pins/ramps/pins_RAMPS.h
index 0195f3a1bc9a..0e6e33e18e88 100644
--- a/Marlin/src/pins/ramps/pins_RAMPS.h
+++ b/Marlin/src/pins/ramps/pins_RAMPS.h
@@ -320,17 +320,29 @@
 #endif
 
 //
-// TMC software SPI
+// TMC SPI
 //
 #if HAS_TMC_SPI
-  #ifndef TMC_SPI_MOSI
-    #define TMC_SPI_MOSI                 AUX2_09
-  #endif
-  #ifndef TMC_SPI_MISO
-    #define TMC_SPI_MISO                 AUX2_07
-  #endif
-  #ifndef TMC_SPI_SCK
-    #define TMC_SPI_SCK                  AUX2_05
+  #if ENABLED(TMC_USE_SW_SPI)
+    #ifndef TMC_SPI_MOSI
+      #define TMC_SPI_MOSI                 AUX2_09
+    #endif
+    #ifndef TMC_SPI_MISO
+      #define TMC_SPI_MISO                 AUX2_07
+    #endif
+    #ifndef TMC_SPI_SCK
+      #define TMC_SPI_SCK                  AUX2_05
+    #endif
+  #else
+    #ifndef TMC_SPI_MOSI
+      #define TMC_SPI_MOSI                 AUX3_04
+    #endif
+    #ifndef TMC_SPI_MISO
+      #define TMC_SPI_MISO                 AUX3_03
+    #endif
+    #ifndef TMC_SPI_SCK
+      #define TMC_SPI_SCK                  AUX3_05
+    #endif
   #endif
 #endif