Merge upstream changes from Marlin 2.1.1

buildroot/tests/STM32F103RE_btt_USB

@@ -0,0 +1,26 @@
+#!/usr/bin/env bash
+#
+# Build tests for STM32F103RE BigTreeTech (SKR E3 DIP v1.0)
+#
+
+# exit on first failure
+set -e
+
+#
+# Build with the default configurations
+#
+restore_configs
+opt_set MOTHERBOARD BOARD_BTT_SKR_E3_DIP SERIAL_PORT 1 SERIAL_PORT_2 -1
+exec_test $1 $2 "BigTreeTech SKR E3 DIP v1.0 - Basic Configuration" "$3"
+
+restore_configs
+opt_set MOTHERBOARD BOARD_BTT_SKR_CR6 SERIAL_PORT -1 SERIAL_PORT_2 2 TEMP_SENSOR_BED 1
+opt_enable CR10_STOCKDISPLAY FAN_SOFT_PWM \
+           NOZZLE_AS_PROBE Z_MIN_PROBE_USES_Z_MIN_ENDSTOP_PIN Z_SAFE_HOMING \
+           PROBE_ACTIVATION_SWITCH PROBE_TARE PROBE_TARE_ONLY_WHILE_INACTIVE \
+           PROBING_HEATERS_OFF PREHEAT_BEFORE_PROBING
+opt_disable NOZZLE_TO_PROBE_OFFSET
+exec_test $1 $2 "BigTreeTech SKR CR6 PROBE_ACTIVATION_SWITCH, Probe Tare" "$3"
+
+# clean up
+restore_configs