m68k/atari: EtherNAT - platform device and IRQ support code

Add platform device and interrupt definitions necessary for the EtherNAT
Ethernet/USB adapter for the Falcon extension port. EtherNAT interrupt
numbers are 139/140 so the max. interrupt number for Atari has to be
increased.

[Geert] Conditionalize platform device data structures

Signed-off-by: Michael Schmitz <schmitz@debian.org>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>

arch/m68k/include/asm/atarihw.h

@@ -805,5 +805,11 @@ struct MSTE_RTC {
 
 #define mste_rtc ((*(volatile struct MSTE_RTC *)MSTE_RTC_BAS))
 
+/*
+** EtherNAT add-on card for Falcon - combined ethernet and USB adapter
+*/
+
+#define ATARI_ETHERNAT_PHYS_ADDR	0x80000000
+
 #endif /* linux/atarihw.h */
 

arch/m68k/include/asm/atariints.h

@@ -32,7 +32,7 @@
 #define VME_SOURCE_BASE    56
 #define VME_MAX_SOURCES    16
 
-#define NUM_ATARI_SOURCES   (VME_SOURCE_BASE+VME_MAX_SOURCES-STMFP_SOURCE_BASE)
+#define NUM_ATARI_SOURCES  141
 
 /* convert vector number to int source number */
 #define IRQ_VECTOR_TO_SOURCE(v)	((v) - ((v) < 0x20 ? 0x18 : (0x40-8)))

arch/m68k/include/asm/irq.h

@@ -6,12 +6,16 @@
  * different m68k hosts compiled into the kernel.
  * Currently the Atari has 72 and the Amiga 24, but if both are
  * supported in the kernel it is better to make room for 72.
+ * With EtherNAT add-on card on Atari, the highest interrupt
+ * number is 140 so NR_IRQS needs to be 141.
  */
 #if defined(CONFIG_COLDFIRE)
 #define NR_IRQS 256
 #elif defined(CONFIG_VME) || defined(CONFIG_SUN3) || defined(CONFIG_SUN3X)
 #define NR_IRQS 200
-#elif defined(CONFIG_ATARI) || defined(CONFIG_MAC)
+#elif defined(CONFIG_ATARI)
+#define NR_IRQS 141
+#elif defined(CONFIG_MAC)
 #define NR_IRQS 72
 #elif defined(CONFIG_Q40)
 #define NR_IRQS	43