From 1d78bdac82826fc0594893fdd4b29c886155c9a8 Mon Sep 17 00:00:00 2001
From: Scott Lahteine <github@thinkyhead.com>
Date: Tue, 20 Feb 2018 20:09:10 -0600
Subject: [PATCH] quick_home_xy sensorless homing

---
 Marlin/Marlin_main.cpp | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/Marlin/Marlin_main.cpp b/Marlin/Marlin_main.cpp
index fd23e60c3..9b47f368c 100644
--- a/Marlin/Marlin_main.cpp
+++ b/Marlin/Marlin_main.cpp
@@ -3618,10 +3618,26 @@ inline void gcode_G4() {
                 mlratio = mlx > mly ? mly / mlx : mlx / mly,
                 fr_mm_s = min(homing_feedrate(X_AXIS), homing_feedrate(Y_AXIS)) * SQRT(sq(mlratio) + 1.0);
 
+    #if ENABLED(SENSORLESS_HOMING)
+      #if ENABLED(X_IS_TMC2130) && defined(X_HOMING_SENSITIVITY)
+        tmc_sensorless_homing(stepperX);
+      #endif
+      #if ENABLED(Y_IS_TMC2130) && defined(Y_HOMING_SENSITIVITY)
+        tmc_sensorless_homing(stepperY);
+      #endif
+    #endif
+
     do_blocking_move_to_xy(1.5 * mlx * x_axis_home_dir, 1.5 * mly * home_dir(Y_AXIS), fr_mm_s);
     endstops.hit_on_purpose(); // clear endstop hit flags
     current_position[X_AXIS] = current_position[Y_AXIS] = 0.0;
+
     #if ENABLED(SENSORLESS_HOMING)
+      #if ENABLED(X_IS_TMC2130) && defined(X_HOMING_SENSITIVITY)
+        tmc_sensorless_homing(stepperX, false);
+      #endif
+      #if ENABLED(Y_IS_TMC2130) && defined(Y_HOMING_SENSITIVITY)
+        tmc_sensorless_homing(stepperY, false);
+      #endif
       safe_delay(500); // Short delay needed to settle
     #endif
   }