path: root/packages/linux/nslu2-kernel/2.6/50-nslu2-setup.patch

diff -urN linux-2.6.13.1/arch/arm/mach-ixp4xx/Makefile nslu2-2.6.13.1/arch/arm/mach-ixp4xx/Makefile
--- linux-2.6.13.1/arch/arm/mach-ixp4xx/Makefile	2005-09-17 12:42:02.000000000 +0200
+++ nslu2-2.6.13.1/arch/arm/mach-ixp4xx/Makefile	2005-09-17 12:44:11.000000000 +0200
@@ -8,4 +8,5 @@
 obj-$(CONFIG_MACH_IXDPG425)	+= ixdpg425-pci.o coyote-setup.o
 obj-$(CONFIG_ARCH_ADI_COYOTE)	+= coyote-pci.o coyote-setup.o
 obj-$(CONFIG_MACH_GTWX5715)	+= gtwx5715-pci.o gtwx5715-setup.o
+obj-$(CONFIG_ARCH_NSLU2)	+= nslu2-pci.o nslu2-setup.o nslu2-part.o nslu2-io.o
 
diff -urN linux-2.6.13.1/arch/arm/mach-ixp4xx/nslu2-io.c nslu2-2.6.13.1/arch/arm/mach-ixp4xx/nslu2-io.c
--- linux-2.6.13.1/arch/arm/mach-ixp4xx/nslu2-io.c	1970-01-01 01:00:00.000000000 +0100
+++ nslu2-2.6.13.1/arch/arm/mach-ixp4xx/nslu2-io.c	2005-09-17 00:12:18.000000000 +0200
@@ -0,0 +1,777 @@
+//=============================================================================
+//
+// n2-io.c version 0.1.7
+// Author: Karen Spearel <kas11 at tampabay.rr.com>
+// please report problems/bugs directly to the address above
+//
+// Boilerplate to be added "real soon now"...it is and has always been GPL'ed per
+// MODULE_LICENSE but is offered without warrantee of any sort..use at your own risk
+//
+// NOTE: THIS IS INCOMPLETE.  INCLUDED ONLY TO KEEP FROM BREAKING THE BUILD,
+// IT BEEPS AND SENDS A MESSAGE TO /proc/poweroff.  EVENTUALLY IT
+// WILL TALK TO THE n2_pbd DAEMON.  EVENTUALLY THE LED DRIVER
+// WILL TALK TO SOME USERLAND APP BUT ***NOT*** SET_LEDS.
+// 
+//=============================================================================
+//	GPIO		Function	State
+//	0		Red LED		Status		
+//	1		Green LED	Ready = 1
+//	2		Disk 2 LED	On = 0
+//	3		Disk 1 LED	On = 0
+//	4		Buzzer
+//	5		Power Button	Pressed = 1
+//	8		Power Down	Output = 1 powers down N2
+//	12		Reset		Pressed = 0
+//=============================================================================
+// this driver is N2 specific and is purposely designed to do the minimum 
+// necessary to provide the necessary services given the limited memory resources
+// of the N2.  As OpenN2 develops, addition features will be added as
+// suggested by the community.
+//
+//=============================================================================
+
+#include <linux/config.h>
+#include <linux/version.h>
+#include <linux/module.h>
+#include <linux/utsname.h>
+#include <linux/kernel.h>
+#include <linux/major.h>
+#include <linux/string.h>
+#include <linux/proc_fs.h>
+#include <linux/slab.h>
+#include <linux/init.h>
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/miscdevice.h>
+#include <linux/device.h>
+#include <linux/interrupt.h>
+#include <linux/moduleparam.h>
+#include <linux/timer.h>
+#include <linux/reboot.h>
+
+#include <asm/system.h>
+#include <asm/uaccess.h>
+#include <asm/hardware.h>
+#include <asm-arm/irq.h>
+#include <asm-arm/delay.h>
+#include <asm-arm/signal.h>
+
+/* Set this to 1 to output lots of debug messages. */
+#if NSLU2_IO_DEBUG
+#define nslu2_io_debug(args) printk args
+#else
+#define nslu2_io_debug(args) ((void)0)
+#endif
+
+#define VERSION			"0.1.7"
+
+#define N2RB_MAJOR		60		//rbuttons
+#define N2PB_MAJOR		61		//pbuttons
+#define	N2BZ_MAJOR		62		//buzzer
+#define N2LM_MAJOR		126
+
+#define N2PB_IRQ		22		//gpio5
+#define	N2RB_IRQ		29		//gpio12
+
+#define N2_BEEP_DUR_LONG	2000
+#define N2_BEEP_DUR_MED		400
+#define N2_BEEP_DUR_SHORT	100
+#define N2_BEEP_PITCH_HIGH	250
+#define N2_BEEP_PITCH_MED	500
+#define N2_BEEP_PITCH_LOW	1000
+#define N2_LONG_DELAY		30000
+
+#define N2_BZ_GPIO		4
+#define N2_PB_GPIO		5
+#define N2_PO_GPIO		8		//power off
+#define N2_RB_GPIO		12
+
+#define GPIO_BZ_BM		0x0010	//b0000 0000 0001 0000
+#define GPIO_PB_BM		0x0020	//b0000 0000 0010 0000
+#define GPIO_PO_BM		0x0100  //b0000 0001 0000 0000
+#define GPIO_RB_BM		0x1000	//b0001 0000 0000 0000
+
+#define NOERR			0
+
+#define RB_DELAY		50
+#define PB_DELAY		20
+
+#define PWR_OFF_STR		"poweroff"
+
+
+// ioctls -- 'M" is used for sound cards...we don't got one so it seems safe
+
+#define N2BZ_BEEP_STOP		_IO('M',0)       //stop multi-beep at end of audible
+#define N2BZ_BEEP		_IO('M',1)       //one beep at current defaults
+#define N2BZ_BEEPS		_IOW('M',3,long) //param beeps at current defaults
+#define N2BZ_TONESET		_IOW('M',4,long) //set tone: range is high=250 to low=2000
+#define N2BZ_ONTIME		_IOW('M',5,long) //ontime for multi-beeps in jiffies
+#define	N2BZ_SILENTTIME		_IOW('M',6,long) //offtime for multi-beeps in jiffies
+#define N2BZ_REPEATCNT		_IOW('M',7,long) //number of repeats for multi-beeps 0 = forever
+#define N2BZ_COMBINED		_IOW('M',8,long) //combine all params in a long
+
+#define N2LM_OFF		_IOW('M',32,long)
+#define N2LM_ON			_IOW('M',33,long)
+#define N2LM_BLINK		_IOW('M',34,long)
+#define N2LM_ALT		_IOW('M',35,long)
+#define N2LM_ALL_ON		_IO('M',36)
+#define N2LM_ALL_OFF		_IO('M',37)
+
+#define PHYS_LEDS		4
+#define BLINK_DELAY		25
+
+//  OR Masks to turn these LEDs ON
+
+#define	RS_RED_ON	0x00000001	//0b0000 0000 0000 0010
+#define	RS_GRN_ON	0x00000002	//0b0000 0000 0000 0001
+#define RS_YEL_ON	0x00000003	//0b0000 0000 0000 0011
+
+// AND Masks to turn these LEDs OFF
+
+#define	RS_RED_OFF	0xfffffffe	//0b1111 1111 1111 1101
+#define	RS_GRN_OFF	0xfffffffd	//0b1111 1111 1111 1110
+#define RS_YEL_OFF	0xfffffffc	//0b1111 1111 1111 1100
+
+// AND Masks to turn these LEDs ON
+
+#define DISK1_ON	0xfffffff7	//0b1111 1111 1111 0111
+#define	DISK2_ON	0xfffffffb	//0b1111 1111 1111 1011
+
+// Or Masks to turn these LEDs OFF
+
+#define DISK1_OFF	0x00000008	//0b0000 0000 0000 1000
+#define	DISK2_OFF	0x00000004	//0b0000 0000 0000 0100	
+
+// EOR masks for toggling LEDs on/off
+
+#define RS_RG_ALT	0x00000003	//eor mask to toggle rs rg bits
+#define RS_GRN_TGL	0x00000002
+#define RS_RED_TGL	0x00000001
+#define DISK1_TGL	0x00000008
+#define DISK2_TGL	0x00000004
+
+// The LED names for switches
+
+#define LED_RS_RED	0
+#define LED_RS_GRN	1
+#define	LED_DISK1	2
+#define LED_DISK2	3
+#define LED_ALL		4
+
+static unsigned long init_jiffy = 0;			//jiffies at init time
+static unsigned long rb_presses = 0;			//number of reset button presses
+static unsigned long ontime = 50;
+static unsigned long offtime = 450;
+static unsigned long bz_repeatcnt = 10;
+static unsigned long tone = 1000;
+
+DECLARE_WAIT_QUEUE_HEAD(n2rb_waitq);
+DECLARE_WAIT_QUEUE_HEAD(n2pb_waitq);
+
+static struct timer_list n2lm_rsg_timer;	//rs green 
+static struct timer_list n2lm_rsr_timer;	//rs red
+static struct timer_list n2lm_d1_timer;		//drive 1
+static struct timer_list n2lm_d2_timer;		//drive 2
+static struct timer_list n2rb_timer;
+static struct timer_list n2pb_timer;
+static struct timer_list n2bz_timer;		//beeper
+
+// sysfs class
+static struct class *n2lm_class;
+
+//==================================================================================================
+//
+// Blinking is handled entirely by the 4 timer handlers.  On timeout, the bit in the
+// GPIO output register is xor'd with a mask corresponding to the selected led which simply
+// flips that bit.  No record of what any of the other leds is doing is needed.
+//
+//==================================================================================================
+// this blinks rs green or green/yellow if rs red is on
+static void n2lm_rsg_handler(unsigned long data)
+{
+	*IXP4XX_GPIO_GPOUTR ^= RS_GRN_TGL;			//flip the led
+	n2lm_rsg_timer.expires = jiffies + BLINK_DELAY;		//next timeout
+	add_timer(&n2lm_rsg_timer);				//reinit timer
+	return;
+}
+
+// this blinks or alternates rs red green... inited wit green on/red off
+static void n2lm_rsr_handler(unsigned long data)
+{
+	*IXP4XX_GPIO_GPOUTR ^= n2lm_rsr_timer.data;
+	n2lm_rsr_timer.expires = jiffies + BLINK_DELAY;
+	add_timer(&n2lm_rsr_timer);
+	return;	
+}
+// blinks disk 1
+static void n2lm_d1_handler(unsigned long data)
+{
+	*IXP4XX_GPIO_GPOUTR ^= DISK1_TGL;
+	n2lm_d1_timer.expires = jiffies + BLINK_DELAY;
+	add_timer(&n2lm_d1_timer);
+	return;
+}
+// blinks disk 2
+static void n2lm_d2_handler(unsigned long data)
+{
+	*IXP4XX_GPIO_GPOUTR ^= DISK2_TGL;
+	n2lm_d2_timer.expires = jiffies + BLINK_DELAY;
+	add_timer(&n2lm_d2_timer);
+	return;
+}
+
+//==================================================================================================
+
+static void n2lm_timer_start(unsigned long led)
+{
+
+	nslu2_io_debug((KERN_DEBUG "timer: %ld\n",led));
+
+	switch(led) {
+		case LED_RS_RED:
+			n2lm_rsr_timer.expires = jiffies + BLINK_DELAY;
+			add_timer(&n2lm_rsr_timer);
+			break;
+
+		case LED_RS_GRN:
+			n2lm_rsg_timer.expires = jiffies + BLINK_DELAY;
+			add_timer(&n2lm_rsg_timer);
+			break;
+
+		case LED_DISK1:
+			n2lm_d1_timer.expires = jiffies + BLINK_DELAY;
+			add_timer(&n2lm_d1_timer);
+ 			break;
+
+		case LED_DISK2:
+			n2lm_d2_timer.expires = jiffies + BLINK_DELAY; 
+			add_timer(&n2lm_d2_timer);
+			break;
+
+		default:
+			break;
+	}
+	return;
+}
+
+//==================================================================================================
+
+static void n2lm_timer_stop(unsigned long led)
+{
+	switch (led) {
+		case LED_RS_RED:
+			del_timer(&n2lm_rsr_timer);
+			break;
+		case LED_RS_GRN:
+			del_timer(&n2lm_rsg_timer);
+			break;
+		case LED_DISK1:
+			del_timer(&n2lm_d1_timer);
+ 			break;
+		case LED_DISK2: 
+			del_timer(&n2lm_d2_timer);
+			break;
+		default:
+			break;
+	}
+	return;
+}
+
+//--------------------------------------------------------------------------------------------------
+
+static void n2lm_timer_stop_all(void)
+{
+	del_timer(&n2lm_rsg_timer);
+	del_timer(&n2lm_rsr_timer);
+	del_timer(&n2lm_d1_timer); 
+	del_timer(&n2lm_d2_timer);
+	return;
+}
+//--------------------------------------------------------------------------------------------------
+
+static void n2lm_ledon(unsigned long led)
+{
+
+	nslu2_io_debug((KERN_DEBUG "ledon: %ld\n", led));
+
+	switch (led) {
+		case LED_RS_RED:	
+			*IXP4XX_GPIO_GPOUTR |= RS_RED_ON;	//1
+			return;
+		case LED_RS_GRN:
+			*IXP4XX_GPIO_GPOUTR |= RS_GRN_ON;	//2
+			return;
+		case LED_DISK1:
+			*IXP4XX_GPIO_GPOUTR &= DISK1_ON;	//0xfffffff7
+			return;
+		case LED_DISK2:	
+			*IXP4XX_GPIO_GPOUTR &= DISK2_ON;	//0xfffffffb
+			return;
+		case LED_ALL:					//all green
+			*IXP4XX_GPIO_GPOUTR |= RS_GRN_ON;
+			*IXP4XX_GPIO_GPOUTR &= (DISK1_ON & DISK2_ON);
+			return;	
+	}
+}
+
+//--------------------------------------------------------------------------------------------------
+
+static void n2lm_ledoff(unsigned long led)
+{
+
+	switch (led) {
+		case LED_RS_RED:	
+			*IXP4XX_GPIO_GPOUTR &= RS_RED_OFF;	//0xffffffffe
+			return;
+		case LED_RS_GRN:
+			*IXP4XX_GPIO_GPOUTR &= RS_GRN_OFF;	//0xfffffffd
+			return;
+		case LED_DISK1:
+			*IXP4XX_GPIO_GPOUTR |= DISK1_OFF;	//0x00000008
+			return;
+		case LED_DISK2:	
+			*IXP4XX_GPIO_GPOUTR |= DISK2_OFF;	//0x00000004
+			return;
+		case LED_ALL:
+			*IXP4XX_GPIO_GPOUTR &= (RS_GRN_OFF & RS_RED_OFF);
+			*IXP4XX_GPIO_GPOUTR |= (DISK1_OFF | DISK2_OFF);
+	}
+}
+
+//==================================================================================================
+
+static int n2lm_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long led)
+{
+
+	nslu2_io_debug((KERN_DEBUG "cmd=%d, led=%ld\n", cmd, led));
+	
+	if (led < 0 || led >= PHYS_LEDS)
+		return -EINVAL;
+
+	switch (cmd ) {
+		case N2LM_ON:
+			n2lm_timer_stop(led);
+			n2lm_ledon(led);
+			break;
+			
+		case N2LM_OFF:
+			n2lm_timer_stop(led);
+			n2lm_ledoff(led);
+			break;
+			
+		case N2LM_BLINK:
+			n2lm_ledon(led);
+			if (led == LED_RS_RED)
+				n2lm_rsr_timer.data = RS_RED_TGL;
+			n2lm_timer_start(led);
+			break;
+
+		case N2LM_ALT:
+			if (led == LED_RS_RED)
+			{
+				n2lm_ledon(LED_RS_GRN);
+				n2lm_ledoff(LED_RS_RED);
+				n2lm_rsr_timer.data = RS_RG_ALT;
+				n2lm_timer_start(LED_RS_RED);
+				break;
+			} else
+				return -EINVAL;
+		
+		case N2LM_ALL_ON:
+			n2lm_timer_stop_all();
+			n2lm_ledon(LED_ALL);
+			break;
+		
+		case N2LM_ALL_OFF:
+			n2lm_timer_stop_all();
+			n2lm_ledoff(LED_ALL);
+			break;
+		
+		default:
+			return -EINVAL;
+	}
+
+	return NOERR;
+}
+
+static struct file_operations n2lm_fops = {
+	.owner		= THIS_MODULE,
+	.ioctl		= n2lm_ioctl,
+};
+//==================================================================================================
+// We can't do anything fancy here since the system tick rate is far below that required to
+// generate a desirable tone.  Therefore we haven't much choice but to use a busy loop until
+// I get up to speed on the timers.  The saving grace is that for the normal uses, nothing 
+// important should be haprepening. 
+//==================================================================================================
+
+static void n2_buzz(int tone_delay, int duration)
+{
+	int i;
+
+	*IXP4XX_GPIO_GPOER &= ~GPIO_BZ_BM;
+		
+	for (i = 1; i < duration; i++) {
+		*IXP4XX_GPIO_GPOUTR &= ~GPIO_BZ_BM;
+		udelay(tone_delay);
+		*IXP4XX_GPIO_GPOUTR |= GPIO_BZ_BM;
+		udelay(tone_delay);
+	}
+	*IXP4XX_GPIO_GPOER |= GPIO_BZ_BM;
+
+	return;
+}
+//=================================================================================================
+
+// this handles the buzzer duty cycle
+static void n2bz_handler(unsigned long data)
+{
+	if (--bz_repeatcnt > 0) {			//if just one beep left to do
+		n2bz_timer.expires = jiffies + ontime + offtime;	//next timeout
+		add_timer(&n2bz_timer);					//reinit timer
+	}
+	n2_buzz(tone/2, ontime);
+	nslu2_io_debug((KERN_DEBUG "Count = %d\tOntime = %d\n", bz_repeatcnt, ontime));
+	return;
+}
+
+//==================================================================================================
+
+static int n2bz_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long param)
+{
+	switch (cmd) {
+		case N2BZ_BEEP:
+			n2_buzz(tone/2, ontime);
+			break;
+	
+		case N2BZ_BEEP_STOP:
+			del_timer(&n2bz_timer);
+			break;
+
+		case N2BZ_BEEPS:
+			if (param == 0)
+				bz_repeatcnt = 0xffffffff;
+			else
+				bz_repeatcnt = param;
+			n2bz_handler(0);
+			break;
+	
+		case N2BZ_TONESET:
+			if (param >= 250 && param <= 2000)
+				tone = param;
+			break;
+
+		case N2BZ_ONTIME:
+			if (param > 4 && param < 201)
+				ontime = param;
+			break;
+
+		case N2BZ_SILENTTIME:
+			if (param > ontime)			//enforce a reasonable duty cycle
+				offtime = param;
+			else
+				offtime = ontime;
+			break;
+
+		case N2BZ_REPEATCNT:
+			if (param == 0)
+				bz_repeatcnt = 0xffffffff;
+			else
+				bz_repeatcnt = param;
+			break;
+
+		case N2BZ_COMBINED:
+			bz_repeatcnt =  (param & 0xF0000000) >> 28;	//repeat 1 - 16
+			ontime =        (param & 0x0FF00000) >> 20; 	//ontime 1 - 256 jiffies
+			offtime =       (param & 0x000FFF00) >> 8;	//offtime 1 - 4095 jiffies
+			tone =          (param & 0x000000FF) << 4;	//tone (1 - 255) * 16
+			break;
+
+		default:
+			break;
+	}
+	return NOERR;
+}
+
+static struct file_operations n2bz_fops = {
+	.owner		= THIS_MODULE,
+	.ioctl		= n2bz_ioctl,
+};
+
+//==================================================================================================
+		
+static irqreturn_t n2pb_handler (int irq, void *dev_id, struct pt_regs *regs)
+{
+	void *ret;
+	
+	wake_up(&n2pb_waitq);	
+	remove_proc_entry(PWR_OFF_STR, NULL);		//no parent	
+	n2_buzz(N2_BEEP_PITCH_MED, N2_BEEP_DUR_MED);
+	ret = create_proc_entry(PWR_OFF_STR, 0, NULL);
+	nslu2_io_debug((KERN_DEBUG "cpe ret = %p\n", ret));
+
+// WARNING: This is RUDE...it unconditionally pulls the power plug.
+// Your data will be at risk...since this is just a test system
+// I am leaving it enabled...eventually userland needs to get the
+// message, do an orderly shutdown and use an ioctl or something in
+// /proc/powerdowm to actually have us pull the plug.
+
+	machine_power_off();
+
+	return IRQ_HANDLED;
+}
+
+//==================================================================================================
+//
+//static void do_rb_timeout(unsigned long data)
+//{
+//	int i;
+//
+//	for (i = 0; i < rb_presses; i++)
+//		n2_buzz(N2_BEEP_PITCH_MED,N2_BEEP_DUR_SHORT);
+//	return;
+//}
+//
+//==================================================================================================
+// does nothing -- waiting for userland to define
+// This thing is sorta braindead...edge triggered IRQs aren't available in the drivers yet...so
+// we hang in a loop until the button is no longer pressed
+
+struct testr {
+	int	ctl;
+	long	param;
+};
+
+static irqreturn_t n2rb_handler (int irq, void *dev_id, struct pt_regs *regs)
+{
+
+	static struct testr test[] = {
+				 { N2LM_ALL_OFF,0 },
+				 { N2LM_ON,0 },
+				 { N2LM_OFF,0 },
+				 { N2LM_ON,1 },
+				 { N2LM_ALL_OFF,1 },
+				 { N2LM_ON,2 },
+				 { N2LM_OFF,2 },
+				 { N2LM_ON,3 },
+				 { N2LM_OFF,3 },
+				 { N2LM_BLINK,0 },
+				 { N2LM_OFF,0 },
+				 { N2LM_BLINK,1 },
+				 { N2LM_OFF,1 },
+				 { N2LM_BLINK,2 },
+				 { N2LM_OFF,2 },
+				 { N2LM_BLINK,3 },
+				 { N2LM_OFF,3 },
+				 { N2LM_ALL_OFF,0 },
+				 { N2LM_ALT,1 },
+				 { N2LM_OFF,1 },
+				 { N2LM_ALL_ON,0 }
+	};
+
+	nslu2_io_debug(("Reset Entry IRQ =%d Presses = %d Jiffies = %08lx\tIO = %x\tIOW = %x\n", irq, rb_presses, jiffies, (int)_IO('M',rb_presses), (int)_IOW('M',rb_presses,long)));
+
+	wake_up(&n2rb_waitq);	
+  	while ((*IXP4XX_GPIO_GPINR & GPIO_RB_BM) == 0)
+		;					//wait for button release
+
+	if (rb_presses > 20) 
+		rb_presses = 0;
+	tone = (rb_presses * 50) + 200;
+	ontime = (rb_presses*10) + 100;
+	offtime = 500 - (rb_presses*20);
+	nslu2_io_debug(("Ontime = %d\tOfftime = %d\tTone = %d\n",ontime,offtime,tone));
+ 	rb_presses++;
+
+	n2bz_ioctl(NULL,NULL, N2BZ_BEEPS, rb_presses);	
+	n2lm_ioctl(NULL,NULL, test[rb_presses].ctl, test[rb_presses].param);
+//	if (rb_presses == 0) {
+//		init_jiffy = jiffies;
+//		init_timer (&n2rb_timer);
+//		n2rb_timer.function = do_rb_timeout;
+//	};
+//
+//	if (rb_presses == 8)
+//		rb_presses = 0;
+//	if (rb_presses & 1)
+//		n2lm_ledon(test[rb_presses]);
+//	else
+//		n2lm_ledoff(test[rb_presses]);
+//	
+//	n2rb_timer.expires = (jiffies + RB_DELAY);
+//	add_timer (&n2rb_timer);
+//	if (rb_presses < 5) {
+//		if (rb_presses > 0)
+//			n2lm_ledoff(rb_presses);
+//		n2lm_ledon(++rb_presses);
+//		n2lm_timer_start(rb_presses);
+//	};
+
+	nslu2_io_debug((KERN_DEBUG "Reset Exit IRQ=%d Presses= %d Jiffies= %08lx\n", irq, rb_presses, jiffies));
+	return IRQ_HANDLED;
+
+}
+
+//==================================================================================================
+//  What to do here is majorly undetermined...
+
+static int n2rb_read (struct file *filp, char __user *buffer, size_t count, loff_t *ppos)
+{
+	printk(KERN_DEBUG "Reset Button Wait\n");
+	interruptible_sleep_on(&n2rb_waitq);
+	return copy_to_user(buffer, "reset", 5) ? -EFAULT : 5;
+
+}
+
+//==================================================================================================
+//  What to do here is majorly undetermined...
+
+static int n2pb_read (struct file *filp, char __user *buffer, size_t count, loff_t *ppos)
+{
+	printk(KERN_DEBUG "Power Button Wait\n");
+	interruptible_sleep_on(&n2pb_waitq);
+	return copy_to_user(buffer, "poweroff", 8) ? -EFAULT : 8;
+
+}
+
+//--------------------------------------------------------------------------------------------------
+
+static struct file_operations n2rb_fops = {
+	.owner		= THIS_MODULE,
+	.read		= n2rb_read,
+};
+
+//--------------------------------------------------------------------------------------------------
+
+static struct file_operations n2pb_fops = {
+	.owner		= THIS_MODULE,
+	.read		= n2pb_read,
+};
+
+//==================================================================================================
+
+static void n2iom_initarch(void)
+{
+	printk(KERN_DEBUG "setup_interrupts - jiffies=%ld init_jiffy=%ld\n", jiffies, init_jiffy);
+
+	*IXP4XX_GPIO_GPISR = 0x20400000;	// read the 2 irqs to clr
+	gpio_line_config(N2_RB_GPIO, IXP4XX_GPIO_IN | IXP4XX_GPIO_ACTIVE_LOW);
+	gpio_line_isr_clear(N2_RB_GPIO);
+	gpio_line_config(N2_PB_GPIO, IXP4XX_GPIO_IN | IXP4XX_GPIO_ACTIVE_HIGH);
+	gpio_line_isr_clear(N2_PB_GPIO);
+
+	init_timer(&n2lm_rsg_timer);
+	init_timer(&n2lm_rsr_timer);
+	init_timer(&n2lm_d1_timer);
+	init_timer(&n2lm_d2_timer);
+//	init_timer(&n2rb_timer);
+//	init_timer(&n2pb_timer);
+	init_timer(&n2bz_timer);
+	n2lm_rsr_timer.function = n2lm_rsr_handler;
+	n2lm_rsg_timer.function = n2lm_rsg_handler;
+	n2lm_d2_timer.function = n2lm_d2_handler;
+	n2lm_d1_timer.function = n2lm_d1_handler;
+	n2bz_timer.function = n2bz_handler;
+	n2lm_rsr_timer.data = n2lm_rsg_timer.data = n2lm_d1_timer.data = n2lm_d2_timer.data = n2bz_timer.data = 0;
+
+	*IXP4XX_GPIO_GPOER &= 0xfffffff0;	//enable gpio 0-3
+	*IXP4XX_GPIO_GPOUTR |= 0x00000003;	//turn off the leds
+	*IXP4XX_GPIO_GPOUTR &= 0xfffffffc;
+	n2lm_ledon(LED_ALL);
+	n2_buzz(N2_BEEP_PITCH_MED, N2_BEEP_DUR_SHORT);
+	n2lm_ledoff(LED_ALL);
+// Default the Ready/Status to Red during kernel boot, Turn Green at the end of sysvinit
+	n2lm_ledon(LED_RS_RED);
+
+	return;
+}
+
+//==================================================================================================
+
+static int __init n2iom_init(void)
+{
+	printk(KERN_INFO "OpenN2 Misc I/O Driver Version %s\n", VERSION);
+  	
+	init_jiffy = jiffies;
+	printk(KERN_DEBUG "init_jiffy=%ld\n",init_jiffy);
+	n2iom_initarch();
+
+	n2lm_class = class_create(THIS_MODULE, "nslu2");
+
+	if (register_chrdev(N2RB_MAJOR, "n2_rbm", &n2pb_fops) < NOERR) {
+		printk(KERN_DEBUG "Reset Button Major %d not available\n", N2RB_MAJOR);
+		return -EBUSY;
+	}
+	else {
+		class_device_create(n2lm_class, MKDEV(N2RB_MAJOR, 0), NULL, "rbuttons");
+	}
+	if (register_chrdev(N2PB_MAJOR, "n2_pbm", &n2rb_fops) < NOERR) {
+		printk(KERN_DEBUG "Power Button Major %d not available\n", N2PB_MAJOR);
+		return -EBUSY;
+	}
+	else {
+		class_device_create(n2lm_class, MKDEV(N2PB_MAJOR, 0), NULL, "pbuttons");
+	}
+	if (register_chrdev(N2LM_MAJOR, "n2_ledm", &n2lm_fops) < NOERR) {
+		printk(KERN_DEBUG "Led Manager Major %d not available\n", N2LM_MAJOR);
+		return -EBUSY;
+	}
+	else {
+		class_device_create(n2lm_class, MKDEV(N2LM_MAJOR, 0), NULL, "leds");
+	}
+	if (register_chrdev(N2BZ_MAJOR, "n2_bzm", &n2bz_fops) < NOERR) {
+		printk(KERN_DEBUG "Buzzer Major %d not available\n", N2BZ_MAJOR);
+		return -EBUSY;
+	}
+	else {
+		class_device_create(n2lm_class, MKDEV(N2BZ_MAJOR, 0), NULL, "buzzer");
+	}
+
+	if (request_irq(N2RB_IRQ, &n2rb_handler, SA_INTERRUPT, "n2_rb", NULL) < NOERR) {
+		printk(KERN_DEBUG "Reset Button IRQ %d not available\n", N2RB_IRQ);
+		return -EIO;
+	}
+	if (request_irq(N2PB_IRQ, &n2pb_handler, SA_INTERRUPT, "n2_pb", NULL) < NOERR) {
+		printk(KERN_DEBUG "Power Button IRQ %d not available\n", N2PB_IRQ);
+		return -EIO;	
+	}
+	
+	enable_irq(N2PB_IRQ);
+	enable_irq(N2RB_IRQ);
+	return (NOERR);
+}
+
+//==================================================================================================
+
+static void __exit n2iom_exit(void)
+{
+	remove_proc_entry(PWR_OFF_STR, NULL);
+	del_timer(&n2rb_timer);
+	free_irq(N2RB_IRQ,NULL);
+	unregister_chrdev(N2PB_MAJOR, "n2pb");
+	class_device_destroy(n2lm_class, MKDEV(N2PB_MAJOR, 0));
+	del_timer(&n2pb_timer);	
+	free_irq(N2PB_IRQ, NULL);
+	unregister_chrdev(N2RB_MAJOR, "n2rb" );
+	class_device_destroy(n2lm_class, MKDEV(N2RB_MAJOR, 0));
+	del_timer(&n2lm_rsg_timer);
+	del_timer(&n2lm_rsr_timer);
+	del_timer(&n2lm_d1_timer);
+	del_timer(&n2lm_d2_timer);	
+	unregister_chrdev(N2LM_MAJOR, "n2lm" );
+	class_device_destroy(n2lm_class, MKDEV(N2LM_MAJOR, 0));
+	unregister_chrdev(N2BZ_MAJOR, "n2bz");
+	class_device_destroy(n2lm_class, MKDEV(N2BZ_MAJOR, 0));
+	class_destroy(n2lm_class);
+}
+
+module_init (n2iom_init);
+module_exit (n2iom_exit);
+
+MODULE_AUTHOR("Karen Spearel <kas11@tampabay.rr.com>");
+MODULE_DESCRIPTION("OpenN2 Buttons/LEDs IO Driver");
+MODULE_LICENSE("GPL");
+static int debug = 7;
+module_param(debug, int, 0644);
+MODULE_PARM_DESC(debug, "Debugging enabled = 8");
+
diff -urN linux-2.6.13.1/arch/arm/mach-ixp4xx/nslu2-part.c nslu2-2.6.13.1/arch/arm/mach-ixp4xx/nslu2-part.c
--- linux-2.6.13.1/arch/arm/mach-ixp4xx/nslu2-part.c	1970-01-01 01:00:00.000000000 +0100
+++ nslu2-2.6.13.1/arch/arm/mach-ixp4xx/nslu2-part.c	2005-09-16 22:44:38.000000000 +0200
@@ -0,0 +1,120 @@
+/*
+ * nslu2-part.c
+ *
+ * Maintainers: http://www.nslu2-linux.org/
+ * Initial port: Mark Rakes <mrakes AT mac.com>
+ *
+ * "Parse" the fixed partition table of the Linksys NSLU2 and
+ * produce a Linux partition array to match.
+ */
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/init.h>
+#include <linux/vmalloc.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+
+/* info we know about the NSLU2's flash setup:
+ *
+ * Num	Partition		offset		size
+ * ---	---------		----------	-----------
+ * 0	RedBoot			0x00000000	0x00040000
+ * 1	System Configuration	0x00040000	0x00020000
+ * 2	Kernel			0x00060000	0x00100000
+ * 3	Ramdisk			0x00160000	0x006a0000
+ */
+ #define NSLU2_NUM_FLASH_PARTITIONS	4
+ #define NSLU2_FLASH_PART0_NAME		"RedBoot"
+ #define NSLU2_FLASH_PART0_OFFSET	0x00000000
+ #define NSLU2_FLASH_PART0_SIZE		0x00040000
+ #define NSLU2_FLASH_PART1_NAME		"System Configuration"
+ #define NSLU2_FLASH_PART1_OFFSET	(NSLU2_FLASH_PART0_OFFSET + NSLU2_FLASH_PART0_SIZE)
+ #define NSLU2_FLASH_PART1_SIZE		0x00020000
+ #define NSLU2_FLASH_PART2_NAME		"Kernel"
+ #define NSLU2_FLASH_PART2_OFFSET	(NSLU2_FLASH_PART1_OFFSET + NSLU2_FLASH_PART1_SIZE)
+ #define NSLU2_FLASH_PART2_SIZE		0x00100000
+ #define NSLU2_FLASH_PART3_NAME		"Ramdisk"
+ #define NSLU2_FLASH_PART3_OFFSET	(NSLU2_FLASH_PART2_OFFSET + NSLU2_FLASH_PART2_SIZE)
+ #define NSLU2_FLASH_PART3_SIZE		0x006a0000
+
+static int parse_nslu2_partitions(struct mtd_info *master,
+                             struct mtd_partition **pparts,
+                             unsigned long flash_start)
+{
+	struct mtd_partition *parts;
+	int ret = 0, namelen = 0;
+	char *names;
+
+	namelen = strlen(NSLU2_FLASH_PART0_NAME) +
+		  strlen(NSLU2_FLASH_PART1_NAME) +
+		  strlen(NSLU2_FLASH_PART2_NAME) +
+		  strlen(NSLU2_FLASH_PART3_NAME) +
+		  NSLU2_NUM_FLASH_PARTITIONS; /*4 strings + each terminator */
+
+	parts = kmalloc(sizeof(*parts)*NSLU2_NUM_FLASH_PARTITIONS + namelen, GFP_KERNEL);
+	if (!parts) {
+		ret = -ENOMEM;
+		goto out;
+	}
+
+	memset(parts, 0, sizeof(*parts)*NSLU2_NUM_FLASH_PARTITIONS + namelen);
+	names = (char *)&parts[NSLU2_NUM_FLASH_PARTITIONS];
+
+	/* RedBoot partition */
+	parts[0].size	= NSLU2_FLASH_PART0_SIZE;
+	parts[0].offset	= NSLU2_FLASH_PART0_OFFSET;
+	parts[0].name	= NSLU2_FLASH_PART0_NAME;
+	parts[0].mask_flags = MTD_WRITEABLE; /* readonly */
+	strcpy(names, NSLU2_FLASH_PART0_NAME);
+	names += strlen(names)+1;
+	/* System Configuration */
+	parts[1].size	= NSLU2_FLASH_PART1_SIZE;
+	parts[1].offset	= NSLU2_FLASH_PART1_OFFSET;
+	parts[1].name	= NSLU2_FLASH_PART1_NAME;
+	parts[1].mask_flags = MTD_WRITEABLE; /* readonly */
+	strcpy(names, NSLU2_FLASH_PART1_NAME);
+	names += strlen(names)+1;
+	/* Kernel */
+	parts[2].size	= NSLU2_FLASH_PART2_SIZE;
+	parts[2].offset	= NSLU2_FLASH_PART2_OFFSET;
+	parts[2].name	= NSLU2_FLASH_PART2_NAME;
+	parts[2].mask_flags = MTD_WRITEABLE; /* readonly */
+	strcpy(names, NSLU2_FLASH_PART2_NAME);
+	names += strlen(names)+1;
+	/* Ramdisk */
+	parts[3].size	= NSLU2_FLASH_PART3_SIZE;
+	parts[3].offset	= NSLU2_FLASH_PART3_OFFSET;
+	parts[3].name	= NSLU2_FLASH_PART3_NAME;
+	parts[3].mask_flags = MTD_WRITEABLE; /* readonly */
+	strcpy(names, NSLU2_FLASH_PART3_NAME);
+	names += strlen(names)+1;
+
+	ret = NSLU2_NUM_FLASH_PARTITIONS;
+	*pparts = parts;
+ out:
+	return ret;
+}
+
+static struct mtd_part_parser nslu2_parser = {
+	.owner = THIS_MODULE,
+	.parse_fn = parse_nslu2_partitions,
+	.name = "NSLU2",
+};
+
+static int __init nslu2_parser_init(void)
+{
+	return register_mtd_parser(&nslu2_parser);
+}
+
+static void __exit nslu2_parser_exit(void)
+{
+	deregister_mtd_parser(&nslu2_parser);
+}
+
+module_init(nslu2_parser_init);
+module_exit(nslu2_parser_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Mark Rakes");
+MODULE_DESCRIPTION("Parsing code for NSLU2 flash tables");
diff -urN linux-2.6.13.1/arch/arm/mach-ixp4xx/nslu2-pci.c nslu2-2.6.13.1/arch/arm/mach-ixp4xx/nslu2-pci.c
--- linux-2.6.13.1/arch/arm/mach-ixp4xx/nslu2-pci.c	1970-01-01 01:00:00.000000000 +0100
+++ nslu2-2.6.13.1/arch/arm/mach-ixp4xx/nslu2-pci.c	2005-09-16 22:43:54.000000000 +0200
@@ -0,0 +1,87 @@
+/*
+ * arch/arm/mach-ixp4xx/nslu2-pci.c
+ *
+ * NSLU2 board-level PCI initialization
+ *
+ * based on ixdp425-pci.c:
+ *	Copyright (C) 2002 Intel Corporation.
+ *	Copyright (C) 2003-2004 MontaVista Software, Inc.
+ *
+ * Maintainer: http://www.nslu2-linux.org/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+// GPIO 8 is used as the power input so is not free for use as a PCI IRQ
+// However, all the common PCI setup code presumes the standard 4 PCI
+// interrupts are available.  So we compromise...we don't enable the
+// IRQ on Pin 8 but we let
+
+#include <linux/config.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+
+#include <asm/mach/pci.h>
+#include <asm/irq.h>
+#include <asm/hardware.h>
+#include <asm/mach-types.h>
+
+void __init nslu2_pci_preinit(void)
+{
+	gpio_line_config(NSLU2_PCI_INTA_PIN,
+				IXP4XX_GPIO_IN | IXP4XX_GPIO_ACTIVE_LOW);
+	gpio_line_config(NSLU2_PCI_INTB_PIN,
+				IXP4XX_GPIO_IN | IXP4XX_GPIO_ACTIVE_LOW);
+	gpio_line_config(NSLU2_PCI_INTC_PIN,
+				IXP4XX_GPIO_IN | IXP4XX_GPIO_ACTIVE_LOW);
+//	gpio_line_config(NSLU2_PCI_INTD_PIN,
+//				IXP4XX_GPIO_IN | IXP4XX_GPIO_ACTIVE_LOW);
+
+	gpio_line_isr_clear(NSLU2_PCI_INTA_PIN);
+	gpio_line_isr_clear(NSLU2_PCI_INTB_PIN);
+	gpio_line_isr_clear(NSLU2_PCI_INTC_PIN);
+//	gpio_line_isr_clear(NSLU2_PCI_INTD_PIN);
+
+	ixp4xx_pci_preinit();
+}
+
+static int __init nslu2_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+{
+	static int pci_irq_table[NSLU2_PCI_IRQ_LINES] = {
+		IRQ_NSLU2_PCI_INTA,
+		IRQ_NSLU2_PCI_INTB,
+		IRQ_NSLU2_PCI_INTC,
+//		IRQ_NSLU2_PCI_INTD
+	};
+
+	int irq = -1;
+
+	if (slot >= 1 && slot <= NSLU2_PCI_MAX_DEV &&
+		pin >= 1 && pin <= NSLU2_PCI_IRQ_LINES) {
+		irq = pci_irq_table[(slot + pin - 2) % 3]; // ! % 4 kas11
+	}
+
+	return irq;
+}
+
+struct hw_pci __initdata nslu2_pci = {
+	.nr_controllers = 1,
+	.preinit	= nslu2_pci_preinit,
+	.swizzle	= pci_std_swizzle,
+	.setup		= ixp4xx_setup,
+	.scan		= ixp4xx_scan_bus,
+	.map_irq	= nslu2_map_irq,
+};
+
+int __init nslu2_pci_init(void)		//monkey see, monkey do
+{
+	if (machine_is_nslu2())
+		pci_common_init(&nslu2_pci);
+	return 0;
+}
+
+subsys_initcall(nslu2_pci_init);
+
diff -urN linux-2.6.13.1/arch/arm/mach-ixp4xx/nslu2-setup.c nslu2-2.6.13.1/arch/arm/mach-ixp4xx/nslu2-setup.c
--- linux-2.6.13.1/arch/arm/mach-ixp4xx/nslu2-setup.c	1970-01-01 01:00:00.000000000 +0100
+++ nslu2-2.6.13.1/arch/arm/mach-ixp4xx/nslu2-setup.c	2005-09-17 00:02:40.000000000 +0200
@@ -0,0 +1,147 @@
+/*
+ * arch/arm/mach-ixp4xx/nslu2-setup.c
+ *
+ * NSLU2 board-setup
+ *
+ * based ixdp425-setup.c:
+ *      Copyright (C) 2003-2004 MontaVista Software, Inc.
+ *
+ * Author: Mark Rakes <mrakes at mac.com>
+ * Maintainers: http://www.nslu2-linux.org/
+ *
+ * Fixed missing init_time in MACHINE_START kas11 10/22/04
+ * Changed to conform to new style __init ixdp425 kas11 10/22/04 
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/serial.h>
+#include <linux/tty.h>
+#include <linux/serial_8250.h>
+
+#include <asm/types.h>
+#include <asm/setup.h>
+#include <asm/memory.h>
+#include <asm/hardware.h>
+#include <asm/mach-types.h>
+#include <asm/irq.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/flash.h>
+
+void __init nslu2_map_io(void) 
+{
+	ixp4xx_map_io();
+}
+
+static struct flash_platform_data nslu2_flash_data = {
+	.map_name	= "cfi_probe",
+	.width		= 2,
+};
+
+static struct resource nslu2_flash_resource = {
+	.start		= NSLU2_FLASH_BASE,
+	.end		= NSLU2_FLASH_BASE + NSLU2_FLASH_SIZE,
+	.flags		= IORESOURCE_MEM,
+};
+
+static struct platform_device nslu2_flash = {
+	.name		= "IXP4XX-Flash",
+	.id		= 0,
+	.dev		= {
+		.platform_data = &nslu2_flash_data,
+	},
+	.num_resources	= 1,
+	.resource	= &nslu2_flash_resource,
+};
+
+static struct ixp4xx_i2c_pins nslu2_i2c_gpio_pins = {
+	.sda_pin	= NSLU2_SDA_PIN,
+	.scl_pin	= NSLU2_SCL_PIN,
+};
+
+static struct platform_device nslu2_i2c_controller = {
+	.name		= "IXP4XX-I2C",
+	.id		= 0,
+	.dev		= {
+		.platform_data = &nslu2_i2c_gpio_pins,
+	},
+	.num_resources	= 0
+};
+
+static struct resource nslu2_uart_resources[] = {
+	{
+		.start		= IXP4XX_UART1_BASE_PHYS,
+		.end		= IXP4XX_UART1_BASE_PHYS + 0x0fff,
+		.flags		= IORESOURCE_MEM
+	},
+	{
+		.start		= IXP4XX_UART2_BASE_PHYS,
+		.end		= IXP4XX_UART2_BASE_PHYS + 0x0fff,
+		.flags		= IORESOURCE_MEM
+	}
+};
+
+static struct plat_serial8250_port nslu2_uart_data[] = {
+	{
+		.mapbase	= IXP4XX_UART1_BASE_PHYS,
+		.membase	= (char *)IXP4XX_UART1_BASE_VIRT + REG_OFFSET,
+		.irq		= IRQ_IXP4XX_UART1,
+		.flags		= UPF_BOOT_AUTOCONF,
+		.iotype		= UPIO_MEM,
+		.regshift	= 2,
+		.uartclk	= IXP4XX_UART_XTAL,
+	},
+	{
+		.mapbase	= IXP4XX_UART2_BASE_PHYS,
+		.membase	= (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET,
+		.irq		= IRQ_IXP4XX_UART2,
+		.flags		= UPF_BOOT_AUTOCONF,
+		.iotype		= UPIO_MEM,
+		.regshift	= 2,
+		.uartclk	= IXP4XX_UART_XTAL,
+	}
+};
+
+static struct platform_device nslu2_uart = {
+	.name			= "serial8250",
+	.id			= 0,
+	.dev.platform_data	= nslu2_uart_data,
+	.num_resources		= 2,
+	.resource		= nslu2_uart_resources
+};
+
+static struct platform_device *nslu2_devices[] __initdata = {
+	&nslu2_i2c_controller,
+	&nslu2_flash,
+	&nslu2_uart
+};
+
+static void n2_power_off(void)
+{
+        /* This causes the box to drop the power and go dead. */
+#define GPIO_PO_BM              0x0100  //b0000 0001 0000 0000
+        *IXP4XX_GPIO_GPOER &= ~GPIO_PO_BM;      // enable the pwr cntl gpio
+        *IXP4XX_GPIO_GPOUTR |= GPIO_PO_BM;      // do the deed
+}
+
+static void __init nslu2_init(void)
+{
+	ixp4xx_sys_init();
+
+	pm_power_off = n2_power_off;
+	platform_add_devices(nslu2_devices, ARRAY_SIZE(nslu2_devices));
+}
+
+MACHINE_START(NSLU2, "Linksys NSLU2")
+	/* Maintainer: www.nslu2-linux.org */
+	.phys_ram	= PHYS_OFFSET,
+	.phys_io	= IXP4XX_PERIPHERAL_BASE_PHYS,
+	.io_pg_offst	= ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xFFFC,
+	.boot_params	= 0x00000100,
+	.map_io		= nslu2_map_io,
+	.init_irq	= ixp4xx_init_irq,	//FIXME: all irq are off here
+        .timer          = &ixp4xx_timer,
+	.init_machine	= nslu2_init,
+        // INITTIME(ixp4xx_init_time)   //this was missing in 2.6.7 code ...soft reboot needed?
+MACHINE_END