m68k: m68328: move platform code to separate files

The dragen2 and ucsimm/ucdimm files require a bit of
custom code compared to the other dragonball platforms,
move them into separate files as a preparation for a
build fix.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Ungerer <gerg@linux-m68k.org>

arch/m68k/68000/Makefile

@@ -16,4 +16,8 @@ obj-$(CONFIG_M68EZ328)	+= m68EZ328.o
 obj-$(CONFIG_M68VZ328)	+= m68VZ328.o
 obj-$(CONFIG_ROM)	+= romvec.o
 
+obj-$(CONFIG_DRAGEN2)	+= dragen2.o
+obj-$(CONFIG_UCSIMM)	+= ucsimm.o
+obj-$(CONFIG_UCDIMM)	+= ucsimm.o
+
 extra-y 		:= head.o

arch/m68k/68000/dragen2.c

+// SPDX-License-Identifier: GPL-2.0
+/*
+ *  Copyright (C) 1993 Hamish Macdonald
+ *  Copyright (C) 1999 D. Jeff Dionne
+ *  Copyright (C) 2001 Georges Menie, Ken Desmet
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file COPYING in the main directory of this archive
+ * for more details.
+ */
+#include <linux/init.h>
+#include <asm/machdep.h>
+#include <asm/MC68VZ328.h>
+
+/***************************************************************************/
+/*                        Init Drangon Engine hardware                     */
+/***************************************************************************/
+
+static void dragen2_reset(void)
+{
+	local_irq_disable();
+
+#ifdef CONFIG_INIT_LCD
+	PBDATA |= 0x20;				/* disable CCFL light */
+	PKDATA |= 0x4;				/* disable LCD controller */
+	LCKCON = 0;
+#endif
+
+	__asm__ __volatile__(
+		"reset\n\t"
+		"moveal #0x04000000, %a0\n\t"
+		"moveal 0(%a0), %sp\n\t"
+		"moveal 4(%a0), %a0\n\t"
+		"jmp (%a0)"
+	);
+}
+
+void __init init_dragen2(char *command, int size)
+{
+	mach_reset = dragen2_reset;
+
+#ifdef CONFIG_DIRECT_IO_ACCESS
+	SCR = 0x10;					/* allow user access to internal registers */
+#endif
+
+	/* CSGB Init */
+	CSGBB = 0x4000;
+	CSB = 0x1a1;
+
+	/* CS8900 init */
+	/* PK3: hardware sleep function pin, active low */
+	PKSEL |= PK(3);				/* select pin as I/O */
+	PKDIR |= PK(3);				/* select pin as output */
+	PKDATA |= PK(3);			/* set pin high */
+
+	/* PF5: hardware reset function pin, active high */
+	PFSEL |= PF(5);				/* select pin as I/O */
+	PFDIR |= PF(5);				/* select pin as output */
+	PFDATA &= ~PF(5);			/* set pin low */
+
+	/* cs8900 hardware reset */
+	PFDATA |= PF(5);
+	{ int i; for (i = 0; i < 32000; ++i); }
+	PFDATA &= ~PF(5);
+
+	/* INT1 enable (cs8900 IRQ) */
+	PDPOL &= ~PD(1);			/* active high signal */
+	PDIQEG &= ~PD(1);
+	PDIRQEN |= PD(1);			/* IRQ enabled */
+
+#ifdef CONFIG_INIT_LCD
+	/* initialize LCD controller */
+	LSSA = (long) screen_bits;
+	LVPW = 0x14;
+	LXMAX = 0x140;
+	LYMAX = 0xef;
+	LRRA = 0;
+	LPXCD = 3;
+	LPICF = 0x08;
+	LPOLCF = 0;
+	LCKCON = 0x80;
+	PCPDEN = 0xff;
+	PCSEL = 0;
+
+	/* Enable LCD controller */
+	PKDIR |= 0x4;
+	PKSEL |= 0x4;
+	PKDATA &= ~0x4;
+
+	/* Enable CCFL backlighting circuit */
+	PBDIR |= 0x20;
+	PBSEL |= 0x20;
+	PBDATA &= ~0x20;
+
+	/* contrast control register */
+	PFDIR |= 0x1;
+	PFSEL &= ~0x1;
+	PWMR = 0x037F;
+#endif
+}

arch/m68k/68000/m68328.c

@@ -25,9 +25,10 @@
 #include "bootlogo.h"
 #endif
 
+#include "m68328.h"
+
 /***************************************************************************/
 
-int m68328_hwclk(int set, struct rtc_time *t);
 
 /***************************************************************************/
 

arch/m68k/68000/m68328.h

+// SPDX-License-Identifier: GPL-2.0
+void init_dragen2(char *command, int size);
+void init_ucsimm(char *command, int size);
+struct rtc_time;
+int m68328_hwclk(int set, struct rtc_time *t);

arch/m68k/68000/m68EZ328.c

@@ -24,9 +24,7 @@
 #include <asm/bootstd.h>
 #endif
 
-/***************************************************************************/
-
-int m68328_hwclk(int set, struct rtc_time *t);
+#include "m68328.h"
 
 /***************************************************************************/
 
@@ -44,29 +42,12 @@ void m68ez328_reset(void)
 
 /***************************************************************************/
 
-unsigned char *cs8900a_hwaddr;
-static int errno;
-
-#ifdef CONFIG_UCSIMM
-_bsc0(char *, getserialnum)
-_bsc1(unsigned char *, gethwaddr, int, a)
-_bsc1(char *, getbenv, char *, a)
-#endif
-
 void __init config_BSP(char *command, int len)
 {
-  unsigned char *p;
-
   pr_info("68EZ328 DragonBallEZ support (C) 1999 Rt-Control, Inc\n");
 
 #ifdef CONFIG_UCSIMM
-  pr_info("uCsimm serial string [%s]\n", getserialnum());
-  p = cs8900a_hwaddr = gethwaddr(0);
-  pr_info("uCsimm hwaddr %pM\n", p);
-
-  p = getbenv("APPEND");
-  if (p) strcpy(p,command);
-  else command[0] = 0;
+  init_ucsimm(command, len);
 #endif
 
   mach_sched_init = hw_timer_init;

arch/m68k/68000/m68VZ328.c

@@ -32,101 +32,9 @@
 #include "bootlogo-vz.h"
 #endif
 
-/***************************************************************************/
-
-int m68328_hwclk(int set, struct rtc_time *t);
-
-/***************************************************************************/
-/*                        Init Drangon Engine hardware                     */
-/***************************************************************************/
-#if defined(CONFIG_DRAGEN2)
-
-static void m68vz328_reset(void)
-{
-	local_irq_disable();
-
-#ifdef CONFIG_INIT_LCD
-	PBDATA |= 0x20;				/* disable CCFL light */
-	PKDATA |= 0x4;				/* disable LCD controller */
-	LCKCON = 0;
-#endif
-
-	__asm__ __volatile__(
-		"reset\n\t"
-		"moveal #0x04000000, %a0\n\t"
-		"moveal 0(%a0), %sp\n\t"
-		"moveal 4(%a0), %a0\n\t"
-		"jmp (%a0)"
-	);
-}
-
-static void __init init_hardware(char *command, int size)
-{
-#ifdef CONFIG_DIRECT_IO_ACCESS
-	SCR = 0x10;					/* allow user access to internal registers */
-#endif
-
-	/* CSGB Init */
-	CSGBB = 0x4000;
-	CSB = 0x1a1;
-
-	/* CS8900 init */
-	/* PK3: hardware sleep function pin, active low */
-	PKSEL |= PK(3);				/* select pin as I/O */
-	PKDIR |= PK(3);				/* select pin as output */
-	PKDATA |= PK(3);			/* set pin high */
-
-	/* PF5: hardware reset function pin, active high */
-	PFSEL |= PF(5);				/* select pin as I/O */
-	PFDIR |= PF(5);				/* select pin as output */
-	PFDATA &= ~PF(5);			/* set pin low */
-
-	/* cs8900 hardware reset */
-	PFDATA |= PF(5);
-	{ int i; for (i = 0; i < 32000; ++i); }
-	PFDATA &= ~PF(5);
-
-	/* INT1 enable (cs8900 IRQ) */
-	PDPOL &= ~PD(1);			/* active high signal */
-	PDIQEG &= ~PD(1);
-	PDIRQEN |= PD(1);			/* IRQ enabled */
-
-#ifdef CONFIG_INIT_LCD
-	/* initialize LCD controller */
-	LSSA = (long) screen_bits;
-	LVPW = 0x14;
-	LXMAX = 0x140;
-	LYMAX = 0xef;
-	LRRA = 0;
-	LPXCD = 3;
-	LPICF = 0x08;
-	LPOLCF = 0;
-	LCKCON = 0x80;
-	PCPDEN = 0xff;
-	PCSEL = 0;
-
-	/* Enable LCD controller */
-	PKDIR |= 0x4;
-	PKSEL |= 0x4;
-	PKDATA &= ~0x4;
-
-	/* Enable CCFL backlighting circuit */
-	PBDIR |= 0x20;
-	PBSEL |= 0x20;
-	PBDATA &= ~0x20;
-
-	/* contrast control register */
-	PFDIR |= 0x1;
-	PFSEL &= ~0x1;
-	PWMR = 0x037F;
-#endif
-}
+#include "m68328.h"
 
 /***************************************************************************/
-/*                      Init RT-Control uCdimm hardware                    */
-/***************************************************************************/
-#elif defined(CONFIG_UCDIMM)
-
 static void m68vz328_reset(void)
 {
 	local_irq_disable();
@@ -139,51 +47,21 @@ static void m68vz328_reset(void)
 	);
 }
 
-unsigned char *cs8900a_hwaddr;
-static int errno;
-
-_bsc0(char *, getserialnum)
-_bsc1(unsigned char *, gethwaddr, int, a)
-_bsc1(char *, getbenv, char *, a)
-
-static void __init init_hardware(char *command, int size)
-{
-	char *p;
-
-	pr_info("uCdimm serial string [%s]\n", getserialnum());
-	p = cs8900a_hwaddr = gethwaddr(0);
-	pr_info("uCdimm hwaddr %pM\n", p);
-	p = getbenv("APPEND");
-	if (p)
-		strcpy(p, command);
-	else
-		command[0] = 0;
-}
-
-/***************************************************************************/
-#else
-
-static void m68vz328_reset(void)
-{
-}
-
-static void __init init_hardware(char *command, int size)
-{
-}
-
-/***************************************************************************/
-#endif
 /***************************************************************************/
 
 void __init config_BSP(char *command, int size)
 {
 	pr_info("68VZ328 DragonBallVZ support (c) 2001 Lineo, Inc.\n");
 
-	init_hardware(command, size);
-
 	mach_sched_init = hw_timer_init;
 	mach_hwclk = m68328_hwclk;
 	mach_reset = m68vz328_reset;
+
+#ifdef CONFIG_UCDIMM
+	init_ucsimm(command, len);
+#elif defined(CONFIG_DRAGEN2)
+	init_dragen2(command, len);
+#endif
 }
 
 /***************************************************************************/

arch/m68k/68000/ucsimm.c

+// SPDX-License-Identifier: GPL-2.0
+/*
+ *  Copyright (C) 1993 Hamish Macdonald
+ *  Copyright (C) 1999 D. Jeff Dionne
+ *  Copyright (C) 2001 Georges Menie, Ken Desmet
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file COPYING in the main directory of this archive
+ * for more details.
+ */
+#include <linux/init.h>
+#include <asm/bootstd.h>
+#include <asm/machdep.h>
+#include <asm/MC68VZ328.h>
+
+
+#include "m68328.h"
+
+unsigned char *cs8900a_hwaddr;
+static int errno;
+
+_bsc0(char *, getserialnum)
+_bsc1(unsigned char *, gethwaddr, int, a)
+_bsc1(char *, getbenv, char *, a)
+
+void __init init_ucsimm(char *command, int size)
+{
+	char *p;
+
+	pr_info("uCsimm/uCdimm serial string [%s]\n", getserialnum());
+	p = cs8900a_hwaddr = gethwaddr(0);
+	pr_info("uCsimm/uCdimm hwaddr %pM\n", p);
+	p = getbenv("APPEND");
+	if (p)
+		strcpy(p, command);
+	else
+		command[0] = 0;
+}