[PATCH] Amiga Gayle E-Matrix 530 IDE

From: Geert Uytterhoeven <geert@linux-m68k.org>

Amiga Gayle IDE: Add support for the IDE interface on the M-Tech E-Matrix 530
expansion card

drivers/ide/Kconfig

@@ -899,12 +899,16 @@ config BLK_DEV_GAYLE
 	bool "Amiga Gayle IDE interface support"
 	depends on AMIGA
 	help
-	  This is the IDE driver for the builtin IDE interface on some Amiga
-	  models. It supports both the `A1200 style' (used in A600 and A1200)
-	  and `A4000 style' (used in A4000 and A4000T) of the Gayle IDE
-	  interface. Say Y if you have such an Amiga model and want to use IDE
-	  devices (hard disks, CD-ROM drives, etc.) that are connected to the
-	  builtin IDE interface.
+	  This is the IDE driver for the Amiga Gayle IDE interface. It supports
+	  both the `A1200 style' and `A4000 style' of the Gayle IDE interface,
+	  This includes builtin IDE interfaces on some Amiga models (A600,
+	  A1200, A4000, and A4000T), and IDE interfaces on the Zorro expansion
+	  bus (M-Tech E-Matrix 530 expansion card).
+	  Say Y if you have an Amiga with a Gayle IDE interface and want to use
+	  IDE devices (hard disks, CD-ROM drives, etc.) that are connected to
+	  it.
+	  Note that you also have to enable Zorro bus support if you want to
+	  use Gayle IDE interfaces on the Zorro expansion bus.
 
 config BLK_DEV_IDEDOUBLER
 	bool "Amiga IDE Doubler support (EXPERIMENTAL)"

drivers/ide/legacy/gayle.c

@@ -29,7 +29,7 @@
      */
 
 #define GAYLE_BASE_4000	0xdd2020	/* A4000/A4000T */
-#define GAYLE_BASE_1200	0xda0000	/* A1200/A600 */
+#define GAYLE_BASE_1200	0xda0000	/* A1200/A600 and E-Matrix 530 */
 
     /*
      *  Offsets from one of the above bases
@@ -118,9 +118,17 @@ void __init gayle_init(void)
     if (!MACH_IS_AMIGA)
 	return;
 
-    if (!(a4000 = AMIGAHW_PRESENT(A4000_IDE)) && !AMIGAHW_PRESENT(A1200_IDE))
-	return;
+    if ((a4000 = AMIGAHW_PRESENT(A4000_IDE)) || AMIGAHW_PRESENT(A1200_IDE))
+	goto found;
+
+#ifdef CONFIG_ZORRO
+    if (zorro_find_device(ZORRO_PROD_MTEC_VIPER_MK_V_E_MATRIX_530_SCSI_IDE,
+			  NULL))
+	goto found;
+#endif
+    return;
 
+found:
     for (i = 0; i < GAYLE_NUM_PROBE_HWIFS; i++) {
 	unsigned long base, ctrlport, irqport;
 	ide_ack_intr_t *ack_intr;