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, 188 insertions, 0 deletions

diff --git a/arch/m68k/platform/68VZ328/config.c b/arch/m68k/platform/68VZ328/config.c
new file mode 100644
index 000000000000..eabaabe8af36
--- /dev/null
+++ b/arch/m68k/platform/68VZ328/config.c
@@ -0,0 +1,188 @@
+/***************************************************************************/
+
+/*
+ *  linux/arch/m68knommu/platform/68VZ328/config.c
+ *
+ *  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/types.h>
+#include <linux/kernel.h>
+#include <linux/kd.h>
+#include <linux/netdevice.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+
+#include <asm/system.h>
+#include <asm/pgtable.h>
+#include <asm/machdep.h>
+#include <asm/MC68VZ328.h>
+#include <asm/bootstd.h>
+
+#ifdef CONFIG_INIT_LCD
+#include "bootlogo.h"
+#endif
+
+/***************************************************************************/
+
+void m68328_timer_gettod(int *year, int *mon, int *day, int *hour, int *min, int *sec);
+
+/***************************************************************************/
+/*                        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_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
+}
+
+/***************************************************************************/
+/*                      Init RT-Control uCdimm hardware                    */
+/***************************************************************************/
+#elif defined(CONFIG_UCDIMM)
+
+static void m68vz328_reset(void)
+{
+        local_irq_disable();
+        asm volatile (
+                "moveal #0x10c00000, %a0;\n\t"
+                "moveb #0, 0xFFFFF300;\n\t"
+                "moveal 0(%a0), %sp;\n\t"
+                "moveal 4(%a0), %a0;\n\t"
+                "jmp (%a0);\n"
+        );
+}
+
+unsigned char *cs8900a_hwaddr;
+static int errno;
+
+_bsc0(char *, getserialnum)
+_bsc1(unsigned char *, gethwaddr, int, a)
+_bsc1(char *, getbenv, char *, a)
+
+static void init_hardware(char *command, int size)
+{
+        char *p;
+
+        printk(KERN_INFO "uCdimm serial string [%s]\n", getserialnum());
+        p = cs8900a_hwaddr = gethwaddr(0);
+        printk(KERN_INFO "uCdimm hwaddr %.2x:%.2x:%.2x:%.2x:%.2x:%.2x\n",
+                p[0], p[1], p[2], p[3], p[4], p[5]);
+        p = getbenv("APPEND");
+        if (p)
+                strcpy(p, command);
+        else
+                command[0] = 0;
+}
+
+/***************************************************************************/
+#else
+
+static void m68vz328_reset(void)
+{
+}
+
+static void init_hardware(char *command, int size)
+{
+}
+
+/***************************************************************************/
+#endif
+/***************************************************************************/
+
+void config_BSP(char *command, int size)
+{
+        printk(KERN_INFO "68VZ328 DragonBallVZ support (c) 2001 Lineo, Inc.\n");
+
+        init_hardware(command, size);
+
+        mach_gettod = m68328_timer_gettod;
+        mach_reset = m68vz328_reset;
+}
+
+/***************************************************************************/