m68k/amiga/: possible cleanups

This patch contains the following possible cleanups:
- amiints.c: add a proper prototype for amiga_init_IRQ() in
             include/asm-m68k/amigaints.h
- make the following needlessly global code static:
  - config.c: amiga_model
  - config.c: amiga_psfreq
  - config.c: amiga_serial_console_write()
- #if 0 the following unused functions:
  - config.c: amiga_serial_puts()
  - config.c: amiga_serial_console_wait_key()
  - config.c: amiga_serial_gets()
- remove the following unused variable:
  - config.c: amiga_masterclock

Signed-off-by: Adrian Bunk <[email protected]>
Signed-off-by: Geert Uytterhoeven <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

include/asm-m68k/amigahw.h

@@ -22,8 +22,6 @@
      *  Different Amiga models
      */
 
-extern unsigned long amiga_model;
-
 #define AMI_UNKNOWN	(0)
 #define AMI_500		(1)
 #define AMI_500PLUS	(2)
@@ -59,11 +57,9 @@ extern unsigned long amiga_chipset;
      */
 
 extern unsigned long amiga_eclock;	/* 700 kHz E Peripheral Clock */
-extern unsigned long amiga_masterclock;	/* 28 MHz Master Clock */
 extern unsigned long amiga_colorclock;	/* 3.5 MHz Color Clock */
 extern unsigned long amiga_chip_size;	/* Chip RAM Size (bytes) */
 extern unsigned char amiga_vblank;	/* VBLANK Frequency */
-extern unsigned char amiga_psfreq;	/* Power Supply Frequency */
 
 
 #define AMIGAHW_DECLARE(name)	unsigned name : 1

include/asm-m68k/amigaints.h

@@ -98,6 +98,8 @@
 #define CIA_ICR_ALL	0x1f
 #define CIA_ICR_SETCLR	0x80
 
+extern void amiga_init_IRQ(void);
+
 /* to access the interrupt control registers of CIA's use only
 ** these functions, they behave exactly like the amiga os routines
 */