Allow override of CS pins generally

Marlin/src/pins/pins_ARCHIM2.h

@@ -66,31 +66,41 @@
 #define X_STEP_PIN         38   // PC6 X-STEP *
 #define X_DIR_PIN          37   // PC5 X-DIR *
 #define X_ENABLE_PIN       41   // PC9 EN1
-#define X_CS_PIN           39   // PC7 X_nCS
+#ifndef X_CS_PIN
+  #define X_CS_PIN         39   // PC7 X_nCS
+#endif
 #define X_DIAG_PIN         59   // PA4 X_DIAG
 
 #define Y_STEP_PIN         51   // PC12 Y-STEP *
 #define Y_DIR_PIN          92   // PC11 Y-DIR -AddOns *
 #define Y_ENABLE_PIN       49   // PC14 Y-EN *
-#define Y_CS_PIN           50   // PC13 Y_nCS
+#ifndef Y_CS_PIN
+  #define Y_CS_PIN         50   // PC13 Y_nCS
+#endif
 #define Y_DIAG_PIN         48   // PC15 Y_DIAG
 
 #define Z_STEP_PIN         46   // PC17 Z-STEP *
 #define Z_DIR_PIN          47   // PC16 Z-DIR *
 #define Z_ENABLE_PIN       44   // PC19 Z-END *
-#define Z_CS_PIN           45   // PC18 Z_nCS
+#ifndef Z_CS_PIN
+  #define Z_CS_PIN         45   // PC18 Z_nCS
+#endif
 #define Z_DIAG_PIN         36   // PC4 Z_DIAG
 
 #define E0_STEP_PIN       107   // PB10 E1-STEP -AddOns *
 #define E0_DIR_PIN         96   // PC10 E1-DIR -AddOns *
 #define E0_ENABLE_PIN     105   // PB22 E1-EN -AddOns *
-#define E0_CS_PIN         104   // PC20 E1_nCS -AddOns *
+#ifndef E0_CS_PIN
+  #define E0_CS_PIN       104   // PC20 E1_nCS -AddOns *
+#endif
 #define E0_DIAG_PIN        78   // PB23 E1_DIAG
 
 #define E1_STEP_PIN        22   // PB26 E2_STEP *
 #define E1_DIR_PIN         97   // PB24 E2_DIR -AddOns *
 #define E1_ENABLE_PIN      18   // PA11 E2-EN
-#define E1_CS_PIN          19   // PA10 E2_nCS
+#ifndef E1_CS_PIN
+  #define E1_CS_PIN        19   // PA10 E2_nCS
+#endif
 #define E1_DIAG_PIN        25   // PD0 E2_DIAG
 
 //

Marlin/src/pins/pins_RADDS.h

@@ -54,44 +54,60 @@
 #define X_STEP_PIN         24
 #define X_DIR_PIN          23
 #define X_ENABLE_PIN       26
-#define X_CS_PIN           25
+#ifndef X_CS_PIN
+  #define X_CS_PIN         25
+#endif
 
 #define Y_STEP_PIN         17
 #define Y_DIR_PIN          16
 #define Y_ENABLE_PIN       22
-#define Y_CS_PIN           27
+#ifndef Y_CS_PIN
+  #define Y_CS_PIN         27
+#endif
 
 #define Z_STEP_PIN          2
 #define Z_DIR_PIN           3
 #define Z_ENABLE_PIN       15
-#define Z_CS_PIN           29
+#ifndef Z_CS_PIN
+  #define Z_CS_PIN         29
+#endif
 
 #define E0_STEP_PIN        61
 #define E0_DIR_PIN         60
 #define E0_ENABLE_PIN      62
-#define E0_CS_PIN          31
+#ifndef E0_CS_PIN
+  #define E0_CS_PIN        31
+#endif
 
 #define E1_STEP_PIN        64
 #define E1_DIR_PIN         63
 #define E1_ENABLE_PIN      65
-#define E1_CS_PIN          33
+#ifndef E1_CS_PIN
+  #define E1_CS_PIN        33
+#endif
 
 #define E2_STEP_PIN        51
 #define E2_DIR_PIN         53
 #define E2_ENABLE_PIN      49
-#define E2_CS_PIN          35
+#ifndef E2_CS_PIN
+  #define E2_CS_PIN        35
+#endif
 
 // For Extension Board V2
 // http://doku.radds.org/dokumentation/extension-board
 //#define E3_STEP_PIN        35
 //#define E3_DIR_PIN         33
 //#define E3_ENABLE_PIN      37
-//#define E3_CS_PIN           6
+//#ifndef E3_CS_PIN
+//  #define E3_CS_PIN         6
+//#endif
 
 //#define Z2_STEP_PIN        29
 //#define Z2_DIR_PIN         27
 //#define Z2_ENABLE_PIN      31
-//#define Z2_CS_PIN          39
+//#ifndef Z2_CS_PIN
+//  #define Z2_CS_PIN        39
+//#endif
 
 // Microstepping pins - Mapping not from fastio.h (?)
 //#define E3_MS1_PIN         67

Marlin/src/pins/pins_RAMPS_FD_V1.h

@@ -63,32 +63,44 @@
 #define X_STEP_PIN         63
 #define X_DIR_PIN          62
 #define X_ENABLE_PIN       48
-#define X_CS_PIN           68
+#ifdef X_CS_PIN
+  #define X_CS_PIN         68
+#endif
 
 #define Y_STEP_PIN         65
 #define Y_DIR_PIN          64
 #define Y_ENABLE_PIN       46
-#define Y_CS_PIN           60
+#ifdef Y_CS_PIN
+  #define Y_CS_PIN         60
+#endif
 
 #define Z_STEP_PIN         67
 #define Z_DIR_PIN          66
 #define Z_ENABLE_PIN       44
-#define Z_CS_PIN           58
+#ifdef Z_CS_PIN
+  #define Z_CS_PIN         58
+#endif
 
 #define E0_STEP_PIN        36
 #define E0_DIR_PIN         28
 #define E0_ENABLE_PIN      42
-#define E0_CS_PIN          67
+#ifdef E0_CS_PIN
+  #define E0_CS_PIN        67
+#endif
 
 #define E1_STEP_PIN        43
 #define E1_DIR_PIN         41
 #define E1_ENABLE_PIN      39
-#define E1_CS_PIN          61
+#ifdef E1_CS_PIN
+  #define E1_CS_PIN        61
+#endif
 
 #define E2_STEP_PIN        32
 #define E2_DIR_PIN         47
 #define E2_ENABLE_PIN      45
-#define E2_CS_PIN          59
+#ifdef E2_CS_PIN
+  #define E2_CS_PIN        59
+#endif
 
 //
 // Temperature Sensors

Marlin/src/pins/pins_RAMPS_RE_ARM.h

@@ -68,32 +68,44 @@
 #define X_STEP_PIN         P2_01  // (54)
 #define X_DIR_PIN          P0_11  // (55)
 #define X_ENABLE_PIN       P0_10  // (38)
-#define X_CS_PIN           P1_01  // ETH
+#ifndef X_CS_PIN
+  #define X_CS_PIN         P1_01  // ETH
+#endif
 
 #define Y_STEP_PIN         P2_02  // (60)
 #define Y_DIR_PIN          P0_20  // (61)
 #define Y_ENABLE_PIN       P0_19  // (56)
-#define Y_CS_PIN           P1_04  // ETH
+#ifndef Y_CS_PIN
+  #define Y_CS_PIN         P1_04  // ETH
+#endif
 
 #define Z_STEP_PIN         P2_03  // (46)
 #define Z_DIR_PIN          P0_22  // (48)
 #define Z_ENABLE_PIN       P0_21  // (62)
-#define Z_CS_PIN           P1_10  // ETH
+#ifndef Z_CS_PIN
+  #define Z_CS_PIN         P1_10  // ETH
+#endif
 
 #define E0_STEP_PIN        P2_00  // (26)
 #define E0_DIR_PIN         P0_05  // (28)
 #define E0_ENABLE_PIN      P0_04  // (24)
-#define E0_CS_PIN          P1_14  // ETH
+#ifndef E0_CS_PIN
+  #define E0_CS_PIN        P1_14  // ETH
+#endif
 
 #define E1_STEP_PIN        P2_08  // (36)
 #define E1_DIR_PIN         P2_13  // (34)
 #define E1_ENABLE_PIN      P4_29  // (30)
-#define E1_CS_PIN          -1
+#ifndef E1_CS_PIN
+  #define E1_CS_PIN        -1
+#endif
 
 #define E2_STEP_PIN        P2_08  // (36)
 #define E2_DIR_PIN         P2_13  // (34)
 #define E2_ENABLE_PIN      P4_29  // (30)
-#define E2_CS_PIN          -1
+#ifndef E2_CS_PIN
+  #define E2_CS_PIN        -1
+#endif
 
 //
 // Software SPI pins for TMC2130 stepper drivers

Marlin/src/pins/pins_RURAMPS4D.h

@@ -63,37 +63,38 @@
 #define X_STEP_PIN         37 // Support Extension Board
 #define X_DIR_PIN          36
 #define X_ENABLE_PIN       38
-#define X_CS_PIN           -1
 
 #define Y_STEP_PIN         32 // Support Extension Board
 #define Y_DIR_PIN          35
 #define Y_ENABLE_PIN       34
-#define Y_CS_PIN           -1
 
 #define Z_STEP_PIN         30 // Support Extension Board
 #define Z_DIR_PIN           2
 #define Z_ENABLE_PIN       33
-#define Z_CS_PIN           -1
 
 #define E0_STEP_PIN        29
 #define E0_DIR_PIN         28
 #define E0_ENABLE_PIN      31
-#define E0_CS_PIN          -1
 
 #define E1_STEP_PIN        22
 #define E1_DIR_PIN         24
 #define E1_ENABLE_PIN      26
-#define E1_CS_PIN          -1
 
 #define E2_STEP_PIN        25
 #define E2_DIR_PIN         23
 #define E2_ENABLE_PIN      27
-#define E2_CS_PIN          -1
 
 #define E3_STEP_PIN        15 // Only For Extension Board
 #define E3_DIR_PIN         14
 #define E3_ENABLE_PIN      61
-#define E3_CS_PIN          -1
+
+//#define X_CS_PIN           -1
+//#define Y_CS_PIN           -1
+//#define Z_CS_PIN           -1
+//#define E0_CS_PIN          -1
+//#define E1_CS_PIN          -1
+//#define E2_CS_PIN          -1
+//#define E3_CS_PIN          -1
 
 // For Future: Microstepping pins - Mapping not from fastio.h (?)
 //#define E3_MS1_PIN         ?