Look Ma' what I found on my harddisk ...

 o New faster syscalls for 2.1.x, too
 o Upgrade to 2.1.89.

Don't try to run this.  It's flaky as hell.  But feel free to debug ...

4 files changed, 448 insertions, 0 deletions

diff --git a/arch/m68k/apollo/Makefile b/arch/m68k/apollo/Makefile
new file mode 100644
index 000000000..530be849c
--- /dev/null
+++ b/arch/m68k/apollo/Makefile
@@ -0,0 +1,14 @@
+#
+# Makefile for Linux arch/m68k/amiga source directory
+#
+# Note! Dependencies are done automagically by 'make dep', which also
+# removes any old dependencies. DON'T put your own dependencies here
+# unless it's something special (ie not a .c file).
+#
+# Note 2! The CFLAGS definitions are now in the main makefile...
+
+O_TARGET := apollo.o
+O_OBJS   := config.o dn_ints.o \
+
+
+include $(TOPDIR)/Rules.make
diff --git a/arch/m68k/apollo/config.c b/arch/m68k/apollo/config.c
new file mode 100644
index 000000000..2ad8f9c24
--- /dev/null
+++ b/arch/m68k/apollo/config.c
@@ -0,0 +1,245 @@
+#include <stdarg.h>
+#include <linux/config.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/kd.h>
+#include <linux/tty.h>
+#include <linux/console.h>
+
+#include <asm/setup.h>
+#include <asm/system.h>
+#include <asm/pgtable.h>
+#include <asm/apollohw.h>
+#include <asm/irq.h>
+#include <asm/machdep.h>
+
+extern struct consw fb_con;
+extern void dn_sched_init(void (*handler)(int,void *,struct pt_regs *));
+extern int dn_keyb_init(void);
+extern int dn_dummy_kbdrate(struct kbd_repeat *);
+extern void dn_init_IRQ(void);
+#if 0
+extern void (*dn_default_handler[])(int,void *,struct pt_regs *);
+#endif
+extern int dn_request_irq(unsigned int irq, void (*handler)(int, void *, struct pt_regs *), unsigned long flags, const char *devname, void *dev_id);
+extern void dn_free_irq(unsigned int irq, void *dev_id);
+extern void dn_enable_irq(unsigned int);
+extern void dn_disable_irq(unsigned int);
+extern int dn_get_irq_list(char *);
+extern unsigned long dn_gettimeoffset(void);
+extern void dn_gettod(int *, int *, int *, int *, int *, int *);
+extern int dn_dummy_hwclk(int, struct hwclk_time *);
+extern int dn_dummy_set_clock_mmss(unsigned long);
+extern void dn_mksound(unsigned int count, unsigned int ticks);
+extern void dn_dummy_reset(void);
+extern void dn_dummy_waitbut(void);
+extern struct fb_info *dn_fb_init(long *);
+extern void dn_dummy_debug_init(void);
+extern void (*kd_mksound)(unsigned int, unsigned int);
+extern void dn_dummy_video_setup(char *,int *);
+extern void dn_process_int(int irq, struct pt_regs *fp);
+
+static struct console dn_console_driver;
+static void dn_debug_init(void);
+static void dn_timer_int(int irq,void *, struct pt_regs *);
+static void (*sched_timer_handler)(int, void *, struct pt_regs *)=NULL;
+
+int dn_serial_console_wait_key(void) {
+
+	while(!(sio01.srb_csrb & 1))
+		barrier();
+	return sio01.rhrb_thrb;
+}
+
+void dn_serial_console_write (const char *str,unsigned int count)
+{
+   while(count--) {
+	if (*str == '\n') { 
+    	sio01.rhrb_thrb = (unsigned char)'\r';
+       	while (!(sio01.srb_csrb & 0x4))
+                ;
+ 	}
+    sio01.rhrb_thrb = (unsigned char)*str++;
+    while (!(sio01.srb_csrb & 0x4))
+            ;
+  }	
+}
+ 
+void dn_serial_print (const char *str)
+{
+    while (*str) {
+        if (*str == '\n') {
+            sio01.rhrb_thrb = (unsigned char)'\r';
+            while (!(sio01.srb_csrb & 0x4))
+                ;
+        }
+        sio01.rhrb_thrb = (unsigned char)*str++;
+        while (!(sio01.srb_csrb & 0x4))
+            ;
+    }
+}
+
+void config_apollo(void) {
+
+	dn_serial_print("Config apollo !\n");
+#if 0
+	dn_debug_init();	
+#endif
+	printk("Config apollo !\n");
+
+
+	mach_sched_init=dn_sched_init; /* */
+	mach_keyb_init=dn_keyb_init;
+	mach_kbdrate=dn_dummy_kbdrate;
+	mach_init_IRQ=dn_init_IRQ;
+	mach_default_handler=NULL;
+	mach_request_irq     = dn_request_irq;
+	mach_free_irq        = dn_free_irq;
+	enable_irq      = dn_enable_irq;
+	disable_irq     = dn_disable_irq;
+	mach_get_irq_list    = dn_get_irq_list;
+	mach_gettimeoffset   = dn_gettimeoffset;
+	mach_gettod	     = dn_gettod; /* */
+	mach_max_dma_address = 0xffffffff;
+	mach_hwclk           = dn_dummy_hwclk; /* */
+	mach_set_clock_mmss  = dn_dummy_set_clock_mmss; /* */
+	mach_process_int     = dn_process_int;
+#ifdef CONFIG_BLK_DEV_FD
+	mach_floppy_init     = dn_dummy_floppy_init;
+	mach_floppy_setup    = dn_dummy_floppy_setup;
+#endif
+	mach_reset	     = dn_dummy_reset;  /* */
+	conswitchp	     = &fb_con;
+#if 0
+	mach_fb_init 	     = dn_fb_init; 
+	mach_video_setup     = dn_dummy_video_setup; 
+#endif
+	kd_mksound	     = dn_mksound;
+
+}		
+
+void dn_timer_int(int irq, void *dev_id, struct pt_regs *fp) {
+
+	volatile unsigned char x;
+
+	sched_timer_handler(irq,dev_id,fp);
+	
+	x=*(volatile unsigned char *)(IO_BASE+0x10803);
+	x=*(volatile unsigned char *)(IO_BASE+0x10805);
+
+}
+
+void dn_sched_init(void (*timer_routine)(int, void *, struct pt_regs *)) {
+
+	dn_serial_print("dn sched_init\n");
+
+#if 0
+	/* program timer 2 */
+	*(volatile unsigned char *)(IO_BASE+0x10803)=0x00;
+	*(volatile unsigned char *)(IO_BASE+0x10809)=0;
+	*(volatile unsigned char *)(IO_BASE+0x1080b)=50;
+
+	/* program timer 3 */
+	*(volatile unsigned char *)(IO_BASE+0x10801)=0x00;
+	*(volatile unsigned char *)(IO_BASE+0x1080c)=0;
+	*(volatile unsigned char *)(IO_BASE+0x1080f)=50;	
+#endif
+	/* program timer 1 */       	
+	*(volatile unsigned char *)(IO_BASE+0x10803)=0x01;
+	*(volatile unsigned char *)(IO_BASE+0x10801)=0x40;
+	*(volatile unsigned char *)(IO_BASE+0x10805)=0x09;
+	*(volatile unsigned char *)(IO_BASE+0x10807)=0xc4;
+
+	/* enable IRQ of PIC B */
+	*(volatile unsigned char *)(IO_BASE+PICA+1)&=(~8);
+
+
+
+	printk("*(0x10803) %02x\n",*(volatile unsigned char *)(IO_BASE+0x10803));
+	printk("*(0x10803) %02x\n",*(volatile unsigned char *)(IO_BASE+0x10803));
+
+	sched_timer_handler=timer_routine;
+	request_irq(0,dn_timer_int,0,NULL,NULL);
+
+	
+}
+
+unsigned long dn_gettimeoffset(void) {
+
+	return 0xdeadbeef;
+
+}
+
+void dn_gettod(int *yearp, int *monp, int *dayp,
+	       int *hourp, int *minp, int *secp) {
+
+  *yearp=rtc->year;
+  *monp=rtc->month;
+  *dayp=rtc->day_of_month;
+  *hourp=rtc->hours;
+  *minp=rtc->minute;
+  *secp=rtc->second;
+
+printk("gettod: %d %d %d %d %d %d\n",*yearp,*monp,*dayp,*hourp,*minp,*secp);
+
+}
+
+int dn_dummy_hwclk(int op, struct hwclk_time *t) {
+
+  dn_serial_print("hwclk !\n");
+
+  if(!op) { /* read */
+    t->sec=rtc->second;
+    t->min=rtc->minute;
+    t->hour=rtc->hours;
+    t->day=rtc->day_of_month;
+    t->wday=rtc->day_of_week;
+    t->mon=rtc->month;
+    t->year=rtc->year;
+  } else {
+    rtc->second=t->sec;
+    rtc->minute=t->min;
+    rtc->hours=t->hour;
+    rtc->day_of_month=t->day;
+    if(t->wday!=-1)
+      rtc->day_of_week=t->wday;
+    rtc->month=t->mon;
+    rtc->year=t->year;
+  }
+
+  dn_serial_print("hwclk end!\n");
+  return 0;
+
+}
+
+int dn_dummy_set_clock_mmss(unsigned long nowtime) {
+
+  printk("set_clock_mmss\n");
+
+  return 0;
+
+}
+
+void dn_dummy_reset(void) {
+
+  dn_serial_print("The end !\n");
+
+  for(;;);
+
+}
+	
+void dn_dummy_waitbut(void) {
+
+  dn_serial_print("waitbut\n");
+
+}
+
+#if 0
+void dn_debug_init(void) {
+
+  dn_console_driver.write=dn_serial_console_write;
+  register_console(&dn_console_driver);
+
+}
+#endif
diff --git a/arch/m68k/apollo/dn_debug.c b/arch/m68k/apollo/dn_debug.c
new file mode 100644
index 000000000..cba26779a
--- /dev/null
+++ b/arch/m68k/apollo/dn_debug.c
@@ -0,0 +1,23 @@
+#include <stdarg.h>
+
+#define DN_DEBUG_BUFFER_BASE 0x82800000
+#define DN_DEBUG_BUFFER_SIZE 8*1024*1024
+
+static char *current_dbg_ptr=DN_DEBUG_BUFFER_BASE;
+
+int dn_deb_printf(const char *fmt, ...) {
+
+	va_list args;
+	int i;
+
+	if(current_dbg_ptr<(DN_DEBUG_BUFFER_BASE + DN_DEBUG_BUFFER_SIZE)) {
+		va_start(args,fmt);
+		i=vsprintf(current_dbg_ptr,fmt,args);
+		va_end(args);
+		current_dbg_ptr+=i;
+	
+		return i;
+	}
+	else 
+		return 0;
+}
diff --git a/arch/m68k/apollo/dn_ints.c b/arch/m68k/apollo/dn_ints.c
new file mode 100644
index 000000000..c4cffcdf9
--- /dev/null
+++ b/arch/m68k/apollo/dn_ints.c
@@ -0,0 +1,166 @@
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/kernel_stat.h>
+
+#include <asm/system.h>
+#include <asm/irq.h>
+#include <asm/traps.h>
+#include <asm/page.h>
+#include <asm/machdep.h>
+#include <asm/apollohw.h>
+
+static irq_handler_t dn_irqs[16];
+
+extern void write_keyb_cmd(u_short length, u_char *cmd);
+static char BellOnCommand[] =  { 0xFF, 0x21, 0x81 },
+		    BellOffCommand[] = { 0xFF, 0x21, 0x82 };
+
+void dn_process_int(int irq, struct pt_regs *fp) {
+
+#if 0
+  unsigned char x;
+#endif 
+
+#if 0
+  printk("Aha DN interrupt ! : %d\n",irq);
+#endif
+
+  if(dn_irqs[irq-160].handler) {
+    dn_irqs[irq-160].handler(irq,dn_irqs[irq-160].dev_id,fp);
+  }
+  else {
+    printk("spurious irq %d occured\n",irq);
+  }
+
+#if 0  
+  printk("*(0x10803) %02x\n",*(volatile unsigned char *)(IO_BASE+0x10803));
+  x=*(volatile unsigned char *)(IO_BASE+0x10805);
+#endif
+
+  *(volatile unsigned char *)(IO_BASE+0x11000)=0x20;
+  *(volatile unsigned char *)(IO_BASE+0x11100)=0x20;
+
+}
+
+void dn_init_IRQ(void) {
+
+  int i;
+
+  printk("Init IRQ\n");
+
+  for(i=0;i<16;i++) {
+    dn_irqs[i].handler=NULL;
+    dn_irqs[i].flags=IRQ_FLG_STD;
+    dn_irqs[i].dev_id=NULL;
+    dn_irqs[i].devname=NULL;
+  }
+  
+}
+
+int dn_request_irq(unsigned int irq, void (*handler)(int, void *, struct pt_regs *), unsigned long flags, const char *devname, void *dev_id) {
+
+  printk("dn request IRQ\n");
+
+  if((irq<0) || (irq>15)) {
+    printk("Trying to request illegal IRQ\n");
+    return -ENXIO;
+  }
+
+  if(!dn_irqs[irq].handler) {
+    dn_irqs[irq].handler=handler;
+    dn_irqs[irq].flags=IRQ_FLG_STD;
+    dn_irqs[irq].dev_id=dev_id;
+    dn_irqs[irq].devname=devname;
+    if(irq<8)
+      *(volatile unsigned char *)(IO_BASE+PICA+1)&=~(1<<irq);
+    else
+      *(volatile unsigned char *)(IO_BASE+PICB+1)&=~(1<<(irq-8));
+    return 0;
+  }
+  else {
+    printk("Trying to request already assigned irq %d\n",irq);
+    return -ENXIO;
+  }
+
+}
+
+void dn_free_irq(unsigned int irq, void *dev_id) {
+
+  printk("dn free irq\n");
+
+  if((irq<0) || (irq>15)) {
+    printk("Trying to free illegal IRQ\n");
+    return ;
+  }
+
+  if(irq<8)
+    *(volatile unsigned char *)(IO_BASE+PICA+1)|=(1<<irq);
+  else
+    *(volatile unsigned char *)(IO_BASE+PICB+1)|=(1<<(irq-8));  
+
+  dn_irqs[irq].handler=NULL;
+  dn_irqs[irq].flags=IRQ_FLG_STD;
+  dn_irqs[irq].dev_id=NULL;
+  dn_irqs[irq].devname=NULL;
+
+  return ;
+
+}
+
+void dn_enable_irq(unsigned int irq) {
+
+  printk("dn enable irq\n");
+
+}
+
+void dn_disable_irq(unsigned int irq) {
+
+  printk("dn disable irq\n");
+
+}
+
+int dn_get_irq_list(char *buf) {
+
+  printk("dn get irq list\n");
+
+  return 0;
+
+}
+
+struct fb_info *dn_dummy_fb_init(long *mem_start) {
+
+  printk("fb init\n");
+
+  return NULL;
+
+}
+
+static void dn_nosound (unsigned long ignored) {
+
+	write_keyb_cmd(sizeof(BellOffCommand),BellOffCommand);
+
+}
+
+void dn_mksound( unsigned int count, unsigned int ticks ) {
+
+	static struct timer_list sound_timer = { NULL, NULL, 0, 0,
+       										 dn_nosound };
+
+	del_timer( &sound_timer );
+	if(count) {
+		write_keyb_cmd(sizeof(BellOnCommand),BellOnCommand);
+		if (ticks) {
+       		sound_timer.expires = jiffies + ticks;
+			add_timer( &sound_timer );
+		}
+	}
+	else
+		write_keyb_cmd(sizeof(BellOffCommand),BellOffCommand);
+}
+
+void dn_dummy_video_setup(char *options,int *ints) {
+
+  printk("no video yet\n");
+
+}