m68k: merge m68k and m68knommu arch directories

There is a lot of common code that could be shared between the m68k
and m68knommu arch branches. It makes sense to merge the two branches
into a single directory structure so that we can more easily share
that common code.

This is a brute force merge, based on a script from Stephen King
<sfking@fdwdc.com>, which was originally written by Arnd Bergmann
<arnd@arndb.de>.

> The script was inspired by the script Sam Ravnborg used to merge the
> includes from m68knommu. For those files common to both arches but
> differing in content, the m68k version of the file is renamed to
> <file>_mm.<ext> and the m68knommu version of the file is moved into the
> corresponding m68k directory and renamed <file>_no.<ext> and a small
> wrapper file <file>.<ext> is used to select between the two version. Files
> that are common to both but don't differ are removed from the m68knommu
> tree and files and directories that are unique to the m68knommu tree are
> moved to the m68k tree. Finally, the arch/m68knommu tree is removed.
>
> To select between the the versions of the files, the wrapper uses
>
> #ifdef CONFIG_MMU
> #include <file>_mm.<ext>
> #else
> #include <file>_no.<ext>
> #endif

On top of this file merge I have done a simplistic merge of m68k and
m68knommu Kconfig, which primarily attempts to keep existing options and
menus in place. Other than a handful of options being moved it produces
identical .config outputs on m68k and m68knommu targets I tested it on.

With this in place there is now quite a bit of scope for merge cleanups
in future patches.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>

1 files changed, 3 insertions, 531 deletions

diff --git a/arch/m68k/kernel/setup.c b/arch/m68k/kernel/setup.c
index 334d836..4bf129f 100644
--- a/arch/m68k/kernel/setup.c
+++ b/arch/m68k/kernel/setup.c
@@ -1,533 +1,5 @@
-/*
- *  linux/arch/m68k/kernel/setup.c
- *
- *  Copyright (C) 1995  Hamish Macdonald
- */
-
-/*
- * This file handles the architecture-dependent parts of system setup
- */
-
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/sched.h>
-#include <linux/delay.h>
-#include <linux/interrupt.h>
-#include <linux/fs.h>
-#include <linux/console.h>
-#include <linux/genhd.h>
-#include <linux/errno.h>
-#include <linux/string.h>
-#include <linux/init.h>
-#include <linux/bootmem.h>
-#include <linux/proc_fs.h>
-#include <linux/seq_file.h>
-#include <linux/module.h>
-#include <linux/initrd.h>
-
-#include <asm/bootinfo.h>
-#include <asm/sections.h>
-#include <asm/setup.h>
-#include <asm/fpu.h>
-#include <asm/irq.h>
-#include <asm/io.h>
-#include <asm/machdep.h>
-#ifdef CONFIG_AMIGA
-#include <asm/amigahw.h>
-#endif
-#ifdef CONFIG_ATARI
-#include <asm/atarihw.h>
-#include <asm/atari_stram.h>
-#endif
-#ifdef CONFIG_SUN3X
-#include <asm/dvma.h>
-#endif
-#include <asm/natfeat.h>
-
-#if !FPSTATESIZE || !NR_IRQS
-#warning No CPU/platform type selected, your kernel will not work!
-#warning Are you building an allnoconfig kernel?
-#endif
-
-unsigned long m68k_machtype;
-EXPORT_SYMBOL(m68k_machtype);
-unsigned long m68k_cputype;
-EXPORT_SYMBOL(m68k_cputype);
-unsigned long m68k_fputype;
-unsigned long m68k_mmutype;
-EXPORT_SYMBOL(m68k_mmutype);
-#ifdef CONFIG_VME
-unsigned long vme_brdtype;
-EXPORT_SYMBOL(vme_brdtype);
-#endif
-
-int m68k_is040or060;
-EXPORT_SYMBOL(m68k_is040or060);
-
-extern unsigned long availmem;
-
-int m68k_num_memory;
-EXPORT_SYMBOL(m68k_num_memory);
-int m68k_realnum_memory;
-EXPORT_SYMBOL(m68k_realnum_memory);
-unsigned long m68k_memoffset;
-struct mem_info m68k_memory[NUM_MEMINFO];
-EXPORT_SYMBOL(m68k_memory);
-
-struct mem_info m68k_ramdisk;
-
-static char m68k_command_line[CL_SIZE];
-
-void (*mach_sched_init) (irq_handler_t handler) __initdata = NULL;
-/* machine dependent irq functions */
-void (*mach_init_IRQ) (void) __initdata = NULL;
-void (*mach_get_model) (char *model);
-void (*mach_get_hardware_list) (struct seq_file *m);
-/* machine dependent timer functions */
-unsigned long (*mach_gettimeoffset) (void);
-int (*mach_hwclk) (int, struct rtc_time*);
-EXPORT_SYMBOL(mach_hwclk);
-int (*mach_set_clock_mmss) (unsigned long);
-unsigned int (*mach_get_ss)(void);
-int (*mach_get_rtc_pll)(struct rtc_pll_info *);
-int (*mach_set_rtc_pll)(struct rtc_pll_info *);
-EXPORT_SYMBOL(mach_get_ss);
-EXPORT_SYMBOL(mach_get_rtc_pll);
-EXPORT_SYMBOL(mach_set_rtc_pll);
-void (*mach_reset)( void );
-void (*mach_halt)( void );
-void (*mach_power_off)( void );
-long mach_max_dma_address = 0x00ffffff; /* default set to the lower 16MB */
-#ifdef CONFIG_HEARTBEAT
-void (*mach_heartbeat) (int);
-EXPORT_SYMBOL(mach_heartbeat);
-#endif
-#ifdef CONFIG_M68K_L2_CACHE
-void (*mach_l2_flush) (int);
-#endif
-#if defined(CONFIG_INPUT_M68K_BEEP) || defined(CONFIG_INPUT_M68K_BEEP_MODULE)
-void (*mach_beep)(unsigned int, unsigned int);
-EXPORT_SYMBOL(mach_beep);
-#endif
-#if defined(CONFIG_ISA) && defined(MULTI_ISA)
-int isa_type;
-int isa_sex;
-EXPORT_SYMBOL(isa_type);
-EXPORT_SYMBOL(isa_sex);
-#endif
-
-extern int amiga_parse_bootinfo(const struct bi_record *);
-extern int atari_parse_bootinfo(const struct bi_record *);
-extern int mac_parse_bootinfo(const struct bi_record *);
-extern int q40_parse_bootinfo(const struct bi_record *);
-extern int bvme6000_parse_bootinfo(const struct bi_record *);
-extern int mvme16x_parse_bootinfo(const struct bi_record *);
-extern int mvme147_parse_bootinfo(const struct bi_record *);
-extern int hp300_parse_bootinfo(const struct bi_record *);
-extern int apollo_parse_bootinfo(const struct bi_record *);
-
-extern void config_amiga(void);
-extern void config_atari(void);
-extern void config_mac(void);
-extern void config_sun3(void);
-extern void config_apollo(void);
-extern void config_mvme147(void);
-extern void config_mvme16x(void);
-extern void config_bvme6000(void);
-extern void config_hp300(void);
-extern void config_q40(void);
-extern void config_sun3x(void);
-
-#define MASK_256K 0xfffc0000
-
-extern void paging_init(void);
-
-static void __init m68k_parse_bootinfo(const struct bi_record *record)
-{
-	while (record->tag != BI_LAST) {
-		int unknown = 0;
-		const unsigned long *data = record->data;
-
-		switch (record->tag) {
-		case BI_MACHTYPE:
-		case BI_CPUTYPE:
-		case BI_FPUTYPE:
-		case BI_MMUTYPE:
-			/* Already set up by head.S */
-			break;
-
-		case BI_MEMCHUNK:
-			if (m68k_num_memory < NUM_MEMINFO) {
-				m68k_memory[m68k_num_memory].addr = data[0];
-				m68k_memory[m68k_num_memory].size = data[1];
-				m68k_num_memory++;
-			} else
-				printk("m68k_parse_bootinfo: too many memory chunks\n");
-			break;
-
-		case BI_RAMDISK:
-			m68k_ramdisk.addr = data[0];
-			m68k_ramdisk.size = data[1];
-			break;
-
-		case BI_COMMAND_LINE:
-			strlcpy(m68k_command_line, (const char *)data,
-				sizeof(m68k_command_line));
-			break;
-
-		default:
-			if (MACH_IS_AMIGA)
-				unknown = amiga_parse_bootinfo(record);
-			else if (MACH_IS_ATARI)
-				unknown = atari_parse_bootinfo(record);
-			else if (MACH_IS_MAC)
-				unknown = mac_parse_bootinfo(record);
-			else if (MACH_IS_Q40)
-				unknown = q40_parse_bootinfo(record);
-			else if (MACH_IS_BVME6000)
-				unknown = bvme6000_parse_bootinfo(record);
-			else if (MACH_IS_MVME16x)
-				unknown = mvme16x_parse_bootinfo(record);
-			else if (MACH_IS_MVME147)
-				unknown = mvme147_parse_bootinfo(record);
-			else if (MACH_IS_HP300)
-				unknown = hp300_parse_bootinfo(record);
-			else if (MACH_IS_APOLLO)
-				unknown = apollo_parse_bootinfo(record);
-			else
-				unknown = 1;
-		}
-		if (unknown)
-			printk("m68k_parse_bootinfo: unknown tag 0x%04x ignored\n",
-			       record->tag);
-		record = (struct bi_record *)((unsigned long)record +
-					      record->size);
-	}
-
-	m68k_realnum_memory = m68k_num_memory;
-#ifdef CONFIG_SINGLE_MEMORY_CHUNK
-	if (m68k_num_memory > 1) {
-		printk("Ignoring last %i chunks of physical memory\n",
-		       (m68k_num_memory - 1));
-		m68k_num_memory = 1;
-	}
-#endif
-}
-
-void __init setup_arch(char **cmdline_p)
-{
-	int i;
-
-	/* The bootinfo is located right after the kernel bss */
-	m68k_parse_bootinfo((const struct bi_record *)_end);
-
-	if (CPU_IS_040)
-		m68k_is040or060 = 4;
-	else if (CPU_IS_060)
-		m68k_is040or060 = 6;
-
-	/* FIXME: m68k_fputype is passed in by Penguin booter, which can
-	 * be confused by software FPU emulation. BEWARE.
-	 * We should really do our own FPU check at startup.
-	 * [what do we do with buggy 68LC040s? if we have problems
-	 *  with them, we should add a test to check_bugs() below] */
-#ifndef CONFIG_M68KFPU_EMU_ONLY
-	/* clear the fpu if we have one */
-	if (m68k_fputype & (FPU_68881|FPU_68882|FPU_68040|FPU_68060)) {
-		volatile int zero = 0;
-		asm volatile ("frestore %0" : : "m" (zero));
-	}
-#endif
-
-	if (CPU_IS_060) {
-		u32 pcr;
-
-		asm (".chip 68060; movec %%pcr,%0; .chip 68k"
-		     : "=d" (pcr));
-		if (((pcr >> 8) & 0xff) <= 5) {
-			printk("Enabling workaround for errata I14\n");
-			asm (".chip 68060; movec %0,%%pcr; .chip 68k"
-			     : : "d" (pcr | 0x20));
-		}
-	}
-
-	init_mm.start_code = PAGE_OFFSET;
-	init_mm.end_code = (unsigned long)_etext;
-	init_mm.end_data = (unsigned long)_edata;
-	init_mm.brk = (unsigned long)_end;
-
-	*cmdline_p = m68k_command_line;
-	memcpy(boot_command_line, *cmdline_p, CL_SIZE);
-
-	parse_early_param();
-
-#ifdef CONFIG_DUMMY_CONSOLE
-	conswitchp = &dummy_con;
-#endif
-
-	switch (m68k_machtype) {
-#ifdef CONFIG_AMIGA
-	case MACH_AMIGA:
-		config_amiga();
-		break;
-#endif
-#ifdef CONFIG_ATARI
-	case MACH_ATARI:
-		config_atari();
-		break;
-#endif
-#ifdef CONFIG_MAC
-	case MACH_MAC:
-		config_mac();
-		break;
-#endif
-#ifdef CONFIG_SUN3
-	case MACH_SUN3:
-		config_sun3();
-		break;
-#endif
-#ifdef CONFIG_APOLLO
-	case MACH_APOLLO:
-		config_apollo();
-		break;
-#endif
-#ifdef CONFIG_MVME147
-	case MACH_MVME147:
-		config_mvme147();
-		break;
-#endif
-#ifdef CONFIG_MVME16x
-	case MACH_MVME16x:
-		config_mvme16x();
-		break;
-#endif
-#ifdef CONFIG_BVME6000
-	case MACH_BVME6000:
-		config_bvme6000();
-		break;
-#endif
-#ifdef CONFIG_HP300
-	case MACH_HP300:
-		config_hp300();
-		break;
-#endif
-#ifdef CONFIG_Q40
-	case MACH_Q40:
-		config_q40();
-		break;
-#endif
-#ifdef CONFIG_SUN3X
-	case MACH_SUN3X:
-		config_sun3x();
-		break;
-#endif
-	default:
-		panic("No configuration setup");
-	}
-
-#ifdef CONFIG_NATFEAT
-	nf_init();
-#endif
-
-	paging_init();
-
-#ifndef CONFIG_SUN3
-	for (i = 1; i < m68k_num_memory; i++)
-		free_bootmem_node(NODE_DATA(i), m68k_memory[i].addr,
-				  m68k_memory[i].size);
-#ifdef CONFIG_BLK_DEV_INITRD
-	if (m68k_ramdisk.size) {
-		reserve_bootmem_node(__virt_to_node(phys_to_virt(m68k_ramdisk.addr)),
-				     m68k_ramdisk.addr, m68k_ramdisk.size,
-				     BOOTMEM_DEFAULT);
-		initrd_start = (unsigned long)phys_to_virt(m68k_ramdisk.addr);
-		initrd_end = initrd_start + m68k_ramdisk.size;
-		printk("initrd: %08lx - %08lx\n", initrd_start, initrd_end);
-	}
-#endif
-
-#ifdef CONFIG_ATARI
-	if (MACH_IS_ATARI)
-		atari_stram_reserve_pages((void *)availmem);
-#endif
-#ifdef CONFIG_SUN3X
-	if (MACH_IS_SUN3X) {
-		dvma_init();
-	}
-#endif
-
-#endif /* !CONFIG_SUN3 */
-
-/* set ISA defs early as possible */
-#if defined(CONFIG_ISA) && defined(MULTI_ISA)
-	if (MACH_IS_Q40) {
-		isa_type = ISA_TYPE_Q40;
-		isa_sex = 0;
-	}
-#ifdef CONFIG_AMIGA_PCMCIA
-	if (MACH_IS_AMIGA && AMIGAHW_PRESENT(PCMCIA)) {
-		isa_type = ISA_TYPE_AG;
-		isa_sex = 1;
-	}
-#endif
-#endif
-}
-
-static int show_cpuinfo(struct seq_file *m, void *v)
-{
-	const char *cpu, *mmu, *fpu;
-	unsigned long clockfreq, clockfactor;
-
-#define LOOP_CYCLES_68020	(8)
-#define LOOP_CYCLES_68030	(8)
-#define LOOP_CYCLES_68040	(3)
-#define LOOP_CYCLES_68060	(1)
-
-	if (CPU_IS_020) {
-		cpu = "68020";
-		clockfactor = LOOP_CYCLES_68020;
-	} else if (CPU_IS_030) {
-		cpu = "68030";
-		clockfactor = LOOP_CYCLES_68030;
-	} else if (CPU_IS_040) {
-		cpu = "68040";
-		clockfactor = LOOP_CYCLES_68040;
-	} else if (CPU_IS_060) {
-		cpu = "68060";
-		clockfactor = LOOP_CYCLES_68060;
-	} else {
-		cpu = "680x0";
-		clockfactor = 0;
-	}
-
-#ifdef CONFIG_M68KFPU_EMU_ONLY
-	fpu = "none(soft float)";
+#ifdef CONFIG_MMU
+#include "setup_mm.c"
 #else
-	if (m68k_fputype & FPU_68881)
-		fpu = "68881";
-	else if (m68k_fputype & FPU_68882)
-		fpu = "68882";
-	else if (m68k_fputype & FPU_68040)
-		fpu = "68040";
-	else if (m68k_fputype & FPU_68060)
-		fpu = "68060";
-	else if (m68k_fputype & FPU_SUNFPA)
-		fpu = "Sun FPA";
-	else
-		fpu = "none";
-#endif
-
-	if (m68k_mmutype & MMU_68851)
-		mmu = "68851";
-	else if (m68k_mmutype & MMU_68030)
-		mmu = "68030";
-	else if (m68k_mmutype & MMU_68040)
-		mmu = "68040";
-	else if (m68k_mmutype & MMU_68060)
-		mmu = "68060";
-	else if (m68k_mmutype & MMU_SUN3)
-		mmu = "Sun-3";
-	else if (m68k_mmutype & MMU_APOLLO)
-		mmu = "Apollo";
-	else
-		mmu = "unknown";
-
-	clockfreq = loops_per_jiffy * HZ * clockfactor;
-
-	seq_printf(m, "CPU:\t\t%s\n"
-		   "MMU:\t\t%s\n"
-		   "FPU:\t\t%s\n"
-		   "Clocking:\t%lu.%1luMHz\n"
-		   "BogoMips:\t%lu.%02lu\n"
-		   "Calibration:\t%lu loops\n",
-		   cpu, mmu, fpu,
-		   clockfreq/1000000,(clockfreq/100000)%10,
-		   loops_per_jiffy/(500000/HZ),(loops_per_jiffy/(5000/HZ))%100,
-		   loops_per_jiffy);
-	return 0;
-}
-
-static void *c_start(struct seq_file *m, loff_t *pos)
-{
-	return *pos < 1 ? (void *)1 : NULL;
-}
-static void *c_next(struct seq_file *m, void *v, loff_t *pos)
-{
-	++*pos;
-	return NULL;
-}
-static void c_stop(struct seq_file *m, void *v)
-{
-}
-const struct seq_operations cpuinfo_op = {
-	.start	= c_start,
-	.next	= c_next,
-	.stop	= c_stop,
-	.show	= show_cpuinfo,
-};
-
-#ifdef CONFIG_PROC_HARDWARE
-static int hardware_proc_show(struct seq_file *m, void *v)
-{
-	char model[80];
-	unsigned long mem;
-	int i;
-
-	if (mach_get_model)
-		mach_get_model(model);
-	else
-		strcpy(model, "Unknown m68k");
-
-	seq_printf(m, "Model:\t\t%s\n", model);
-	for (mem = 0, i = 0; i < m68k_num_memory; i++)
-		mem += m68k_memory[i].size;
-	seq_printf(m, "System Memory:\t%ldK\n", mem >> 10);
-
-	if (mach_get_hardware_list)
-		mach_get_hardware_list(m);
-
-	return 0;
-}
-
-static int hardware_proc_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, hardware_proc_show, NULL);
-}
-
-static const struct file_operations hardware_proc_fops = {
-	.open		= hardware_proc_open,
-	.read		= seq_read,
-	.llseek		= seq_lseek,
-	.release	= single_release,
-};
-
-static int __init proc_hardware_init(void)
-{
-	proc_create("hardware", 0, NULL, &hardware_proc_fops);
-	return 0;
-}
-module_init(proc_hardware_init);
+#include "setup_no.c"
 #endif
-
-void check_bugs(void)
-{
-#ifndef CONFIG_M68KFPU_EMU
-	if (m68k_fputype == 0) {
-		printk(KERN_EMERG "*** YOU DO NOT HAVE A FLOATING POINT UNIT, "
-			"WHICH IS REQUIRED BY LINUX/M68K ***\n");
-		printk(KERN_EMERG "Upgrade your hardware or join the FPU "
-			"emulation project\n");
-		panic("no FPU");
-	}
-#endif /* !CONFIG_M68KFPU_EMU */
-}
-
-#ifdef CONFIG_ADB
-static int __init adb_probe_sync_enable (char *str) {
-	extern int __adb_probe_sync;
-	__adb_probe_sync = 1;
-	return 1;
-}
-
-__setup("adb_sync", adb_probe_sync_enable);
-#endif /* CONFIG_ADB */