Initial revision

4 files changed, 3136 insertions, 0 deletions

diff --git a/board/mpl/common/flash.c b/board/mpl/common/flash.c
new file mode 100644
index 0000000..f0c541b
--- /dev/null
+++ b/board/mpl/common/flash.c
@@ -0,0 +1,860 @@
+/*
+ * (C) Copyright 2000, 2001
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+/*
+ * Modified 4/5/2001
+ * Wait for completion of each sector erase command issued
+ * 4/5/2001
+ * Chris Hallinan - DS4.COM, Inc. - clh@net1plus.com
+ */
+
+/*
+ * Modified 3/7/2001
+ * - adopted for pip405, Denis Peter, MPL AG Switzerland
+ * TODO:
+ * clean-up
+ */
+
+#include <common.h>
+#include <ppc4xx.h>
+#include <asm/processor.h>
+#ifdef CONFIG_PIP405
+#include "../pip405/pip405.h"
+#endif
+#ifdef CONFIG_MIP405
+#include "../mip405/mip405.h"
+#endif
+#include "common_util.h"
+
+flash_info_t	flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips	*/
+/*-----------------------------------------------------------------------
+ * Functions
+ */
+static ulong flash_get_size (vu_long *addr, flash_info_t *info);
+static int write_word (flash_info_t *info, ulong dest, ulong data);
+static void flash_get_offsets (ulong base, flash_info_t *info);
+
+void unlock_intel_sectors(flash_info_t *info,ulong addr,ulong cnt);
+
+
+#ifdef CONFIG_ADCIOP
+#define ADDR0           0x0aa9
+#define ADDR1           0x0556
+#define FLASH_WORD_SIZE unsigned char
+#endif
+
+#ifdef CONFIG_CPCI405
+#define ADDR0           0x5555
+#define ADDR1           0x2aaa
+#define FLASH_WORD_SIZE unsigned short
+#endif
+
+#ifdef CONFIG_PIP405
+#define ADDR0           0x5555
+#define ADDR1           0x2aaa
+#define FLASH_WORD_SIZE unsigned short
+#endif
+
+#ifdef CONFIG_MIP405
+#define ADDR0           0x5555
+#define ADDR1           0x2aaa
+#define FLASH_WORD_SIZE unsigned short
+#endif
+
+#define FALSE           0
+#define TRUE            1
+
+/*-----------------------------------------------------------------------
+ */
+
+
+unsigned long flash_init (void)
+{
+	unsigned long size_b0, size_b1;
+	int i;
+  unsigned long pbcr;
+  unsigned long base_b0, base_b1;
+  unsigned char rc;
+
+  rc=switch_cs(FALSE); /* map Flash High */
+
+	if(rc)
+		printf("(MPS Boot) ");
+	else
+		printf("(Flash Boot) ");
+	/* Init: no FLASHes known */
+	for (i=0; i<CFG_MAX_FLASH_BANKS; ++i) {
+		flash_info[i].flash_id = FLASH_UNKNOWN;
+	}
+
+	/* Static FLASH Bank configuration here - FIXME XXX */
+
+	size_b0 = flash_get_size((vu_long *)FLASH_BASE0_PRELIM, &flash_info[0]);
+
+	if (flash_info[0].flash_id == FLASH_UNKNOWN) {
+		printf ("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n",
+			size_b0, size_b0<<20);
+	}
+	/* Only one bank */
+	if (CFG_MAX_FLASH_BANKS == 1)
+	  {
+	    /* Setup offsets */
+			/*  flash_get_offsets (FLASH_BASE0_PRELIM, &flash_info[0]); */
+	    /* Monitor protection ON by default */
+#if CFG_MONITOR_BASE >= CFG_FLASH_BASE
+	 	    flash_protect(FLAG_PROTECT_SET,
+				CFG_MONITOR_BASE,
+				CFG_MONITOR_BASE+CFG_MONITOR_LEN-1,
+				&flash_info[0]);
+#endif
+	    size_b1 = 0 ;
+	    flash_info[0].size = size_b0;
+	  }
+
+	/* 2 banks */
+	else
+	  {
+	    size_b1 = flash_get_size((vu_long *)FLASH_BASE1_PRELIM, &flash_info[1]);
+
+	    /* Re-do sizing to get full correct info */
+
+	    if (size_b1)
+	      {
+		mtdcr(ebccfga, pb0cr);
+		pbcr = mfdcr(ebccfgd);
+		mtdcr(ebccfga, pb0cr);
+		base_b1 = -size_b1;
+		pbcr = (pbcr & 0x0001ffff) | base_b1 | (((size_b1/1024/1024)-1)<<17);
+		mtdcr(ebccfgd, pbcr);
+		/*          printf("pb1cr = %x\n", pbcr); */
+	      }
+
+	    if (size_b0)
+	      {
+		mtdcr(ebccfga, pb1cr);
+		pbcr = mfdcr(ebccfgd);
+		mtdcr(ebccfga, pb1cr);
+		base_b0 = base_b1 - size_b0;
+		pbcr = (pbcr & 0x0001ffff) | base_b0 | (((size_b0/1024/1024)-1)<<17);
+		mtdcr(ebccfgd, pbcr);
+		/*            printf("pb0cr = %x\n", pbcr); */
+	      }
+
+	    size_b0 = flash_get_size((vu_long *)base_b0, &flash_info[0]);
+
+	    flash_get_offsets (base_b0, &flash_info[0]);
+
+	    /* monitor protection ON by default */
+	    (void)flash_protect(FLAG_PROTECT_SET,
+				base_b0+size_b0-CFG_MONITOR_LEN,
+				base_b0+size_b0-1,
+				&flash_info[0]);
+
+	    if (size_b1) {
+	      /* Re-do sizing to get full correct info */
+	      size_b1 = flash_get_size((vu_long *)base_b1, &flash_info[1]);
+
+	      flash_get_offsets (base_b1, &flash_info[1]);
+
+	      /* monitor protection ON by default */
+	      (void)flash_protect(FLAG_PROTECT_SET,
+				  base_b1+size_b1-CFG_MONITOR_LEN,
+				  base_b1+size_b1-1,
+				  &flash_info[1]);
+	      /* monitor protection OFF by default (one is enough) */
+	      (void)flash_protect(FLAG_PROTECT_CLEAR,
+				  base_b0+size_b0-CFG_MONITOR_LEN,
+				  base_b0+size_b0-1,
+				  &flash_info[0]);
+	    } else {
+	      flash_info[1].flash_id = FLASH_UNKNOWN;
+	      flash_info[1].sector_count = -1;
+	    }
+
+	    flash_info[0].size = size_b0;
+	    flash_info[1].size = size_b1;
+	  }/* else 2 banks */
+	switch_cs(rc); /* switch mode back */
+	return (size_b0 + size_b1);
+}
+
+
+static void flash_get_offsets (ulong base, flash_info_t *info)
+{
+	return;
+}
+#if 0
+/*-----------------------------------------------------------------------
+ */
+static void flash_get_offsets (ulong base, flash_info_t *info)
+{
+	int i;
+
+	/* set up sector start address table */
+  if (((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) ||
+	    (info->flash_id  == FLASH_AM040)){
+		for (i = 0; i < info->sector_count; i++)
+			info->start[i] = base + (i * 0x00010000);
+  }
+  else {
+		if (info->flash_id & FLASH_BTYPE) {
+		/* set sector offsets for bottom boot block type	*/
+		info->start[0] = base + 0x00000000;
+		info->start[1] = base + 0x00004000;
+		info->start[2] = base + 0x00006000;
+		info->start[3] = base + 0x00008000;
+		for (i = 4; i < info->sector_count; i++) {
+			info->start[i] = base + (i * 0x00010000) - 0x00030000;
+		}
+	    } else {
+		/* set sector offsets for top boot block type		*/
+		i = info->sector_count - 1;
+		info->start[i--] = base + info->size - 0x00004000;
+		info->start[i--] = base + info->size - 0x00006000;
+		info->start[i--] = base + info->size - 0x00008000;
+		for (; i >= 0; i--) {
+			info->start[i] = base + i * 0x00010000;
+		}
+	    }
+	}
+}
+
+#endif
+/*-----------------------------------------------------------------------
+ */
+void flash_print_info  (flash_info_t *info)
+{
+	int i;
+    int k;
+   	int size;
+    int erased;
+    volatile unsigned long *flash;
+
+	if (info->flash_id == FLASH_UNKNOWN) {
+		printf ("missing or unknown FLASH type\n");
+		return;
+	}
+
+	switch (info->flash_id & FLASH_VENDMASK) {
+	case FLASH_MAN_AMD:	printf ("AMD ");		break;
+	case FLASH_MAN_FUJ:	printf ("FUJITSU ");		break;
+	case FLASH_MAN_SST:	printf ("SST ");		break;
+	case FLASH_MAN_INTEL:	printf ("Intel ");		break;
+	default:		printf ("Unknown Vendor ");	break;
+	}
+
+	switch (info->flash_id & FLASH_TYPEMASK) {
+	case FLASH_AM040:	printf ("AM29F040 (512 Kbit, uniform sector size)\n");
+				break;
+	case FLASH_AM400B:	printf ("AM29LV400B (4 Mbit, bottom boot sect)\n");
+				break;
+	case FLASH_AM400T:	printf ("AM29LV400T (4 Mbit, top boot sector)\n");
+				break;
+	case FLASH_AM800B:	printf ("AM29LV800B (8 Mbit, bottom boot sect)\n");
+				break;
+	case FLASH_AM800T:	printf ("AM29LV800T (8 Mbit, top boot sector)\n");
+				break;
+	case FLASH_AM160B:	printf ("AM29LV160B (16 Mbit, bottom boot sect)\n");
+				break;
+	case FLASH_AM160T:	printf ("AM29LV160T (16 Mbit, top boot sector)\n");
+				break;
+	case FLASH_AM320B:	printf ("AM29LV320B (32 Mbit, bottom boot sect)\n");
+				break;
+	case FLASH_AM320T:	printf ("AM29LV320T (32 Mbit, top boot sector)\n");
+				break;
+	case FLASH_SST800A:	printf ("SST39LF/VF800 (8 Mbit, uniform sector size)\n");
+				break;
+	case FLASH_SST160A:	printf ("SST39LF/VF160 (16 Mbit, uniform sector size)\n");
+				break;
+	case FLASH_INTEL320T:	printf ("TE28F320C3 (32 Mbit, top sector size)\n");
+				break;
+	default:		printf ("Unknown Chip Type\n");
+				break;
+	}
+
+	printf ("  Size: %ld KB in %d Sectors\n",
+		info->size >> 10, info->sector_count);
+
+	printf ("  Sector Start Addresses:");
+	for (i=0; i<info->sector_count; ++i) {
+  	/*
+     * Check if whole sector is erased
+     */
+		if (i != (info->sector_count-1))
+    	size = info->start[i+1] - info->start[i];
+		else
+      size = info->start[0] + info->size - info->start[i];
+    erased = 1;
+    flash = (volatile unsigned long *)info->start[i];
+    size = size >> 2;        /* divide by 4 for longword access */
+    for (k=0; k<size; k++)
+    {
+    	if (*flash++ != 0xffffffff)
+			{
+ 				erased = 0;
+				break;
+			}
+ 		}
+		if ((i % 5) == 0)
+			printf ("\n   ");
+#if 0 /* test-only */
+		printf (" %08lX%s",
+			info->start[i],
+			info->protect[i] ? " (RO)" : "     "
+#else
+		printf (" %08lX%s%s",
+			info->start[i],
+			erased ? " E" : "  ",
+			info->protect[i] ? "RO " : "   "
+#endif
+		);
+	}
+	printf ("\n");
+
+}
+
+/*-----------------------------------------------------------------------
+ */
+
+
+/*-----------------------------------------------------------------------
+ */
+
+/*
+ * The following code cannot be run from FLASH!
+ */
+static ulong flash_get_size (vu_long *addr, flash_info_t *info)
+{
+	short i;
+	FLASH_WORD_SIZE value;
+	ulong base = (ulong)addr;
+	volatile FLASH_WORD_SIZE *addr2 = (FLASH_WORD_SIZE *)addr;
+
+	/* Write auto select command: read Manufacturer ID */
+	addr2[ADDR0] = (FLASH_WORD_SIZE)0x00AA00AA;
+	addr2[ADDR1] = (FLASH_WORD_SIZE)0x00550055;
+	addr2[ADDR0] = (FLASH_WORD_SIZE)0x00900090;
+
+	value = addr2[0];
+	/*	printf("flash_get_size value: %x\n",value); */
+	switch (value) {
+	case (FLASH_WORD_SIZE)AMD_MANUFACT:
+		info->flash_id = FLASH_MAN_AMD;
+		break;
+	case (FLASH_WORD_SIZE)FUJ_MANUFACT:
+		info->flash_id = FLASH_MAN_FUJ;
+		break;
+	case (FLASH_WORD_SIZE)INTEL_MANUFACT:
+		info->flash_id = FLASH_MAN_INTEL;
+		break;
+	case (FLASH_WORD_SIZE)SST_MANUFACT:
+		info->flash_id = FLASH_MAN_SST;
+		break;
+	default:
+		info->flash_id = FLASH_UNKNOWN;
+		info->sector_count = 0;
+		info->size = 0;
+		return (0);			/* no or unknown flash	*/
+	}
+	value = addr2[1];			/* device ID		*/
+	/*	printf("Device value %x\n",value); */
+	switch (value) {
+	case (FLASH_WORD_SIZE)AMD_ID_F040B:
+	        info->flash_id += FLASH_AM040;
+		info->sector_count = 8;
+		info->size = 0x0080000; /* => 512 ko */
+		break;
+	case (FLASH_WORD_SIZE)AMD_ID_LV400T:
+		info->flash_id += FLASH_AM400T;
+		info->sector_count = 11;
+		info->size = 0x00080000;
+		break;				/* => 0.5 MB		*/
+
+	case (FLASH_WORD_SIZE)AMD_ID_LV400B:
+		info->flash_id += FLASH_AM400B;
+		info->sector_count = 11;
+		info->size = 0x00080000;
+		break;				/* => 0.5 MB		*/
+
+	case (FLASH_WORD_SIZE)AMD_ID_LV800T:
+		info->flash_id += FLASH_AM800T;
+		info->sector_count = 19;
+		info->size = 0x00100000;
+		break;				/* => 1 MB		*/
+
+	case (FLASH_WORD_SIZE)AMD_ID_LV800B:
+		info->flash_id += FLASH_AM800B;
+		info->sector_count = 19;
+		info->size = 0x00100000;
+		break;				/* => 1 MB		*/
+
+	case (FLASH_WORD_SIZE)AMD_ID_LV160T:
+		info->flash_id += FLASH_AM160T;
+		info->sector_count = 35;
+		info->size = 0x00200000;
+		break;				/* => 2 MB		*/
+
+	case (FLASH_WORD_SIZE)AMD_ID_LV160B:
+		info->flash_id += FLASH_AM160B;
+		info->sector_count = 35;
+		info->size = 0x00200000;
+		break;				/* => 2 MB		*/
+#if 0	/* enable when device IDs are available */
+	case (FLASH_WORD_SIZE)AMD_ID_LV320T:
+		info->flash_id += FLASH_AM320T;
+		info->sector_count = 67;
+		info->size = 0x00400000;
+		break;				/* => 4 MB		*/
+
+	case (FLASH_WORD_SIZE)AMD_ID_LV320B:
+		info->flash_id += FLASH_AM320B;
+		info->sector_count = 67;
+		info->size = 0x00400000;
+		break;				/* => 4 MB		*/
+#endif
+	case (FLASH_WORD_SIZE)SST_ID_xF800A:
+		info->flash_id += FLASH_SST800A;
+		info->sector_count = 16;
+		info->size = 0x00100000;
+		break;				/* => 1 MB		*/
+	case (FLASH_WORD_SIZE)INTEL_ID_28F320C3T:
+		info->flash_id += FLASH_INTEL320T;
+		info->sector_count = 71;
+		info->size = 0x00400000;
+		break;				/* => 4 MB		*/
+
+
+	case (FLASH_WORD_SIZE)SST_ID_xF160A:
+		info->flash_id += FLASH_SST160A;
+		info->sector_count = 32;
+		info->size = 0x00200000;
+		break;				/* => 2 MB		*/
+
+	default:
+		info->flash_id = FLASH_UNKNOWN;
+		return (0);			/* => no or unknown flash */
+
+	}
+
+	/* set up sector start address table */
+  if (((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) ||
+	    (info->flash_id  == FLASH_AM040)){
+		for (i = 0; i < info->sector_count; i++)
+			info->start[i] = base + (i * 0x00010000);
+  } else {
+		if (info->flash_id & FLASH_BTYPE) {
+		/* set sector offsets for bottom boot block type	*/
+		info->start[0] = base + 0x00000000;
+		info->start[1] = base + 0x00004000;
+		info->start[2] = base + 0x00006000;
+		info->start[3] = base + 0x00008000;
+		for (i = 4; i < info->sector_count; i++)
+			info->start[i] = base + (i * 0x00010000) - 0x00030000;
+	  }
+	  else {
+			/* set sector offsets for top boot block type		*/
+			i = info->sector_count - 1;
+			if(info->sector_count==71) {
+
+				info->start[i--] = base + info->size - 0x00002000;
+				info->start[i--] = base + info->size - 0x00004000;
+				info->start[i--] = base + info->size - 0x00006000;
+				info->start[i--] = base + info->size - 0x00008000;
+				info->start[i--] = base + info->size - 0x0000A000;
+				info->start[i--] = base + info->size - 0x0000C000;
+				info->start[i--] = base + info->size - 0x0000E000;
+				for (; i >= 0; i--)
+					info->start[i] = base + i * 0x000010000;
+			}
+			else {
+				info->start[i--] = base + info->size - 0x00004000;
+				info->start[i--] = base + info->size - 0x00006000;
+				info->start[i--] = base + info->size - 0x00008000;
+				for (; i >= 0; i--)
+					info->start[i] = base + i * 0x00010000;
+			}
+		}
+	}
+
+	/* check for protected sectors */
+	for (i = 0; i < info->sector_count; i++) {
+		/* read sector protection at sector address, (A7 .. A0) = 0x02 */
+		/* D0 = 1 if protected */
+		addr2 = (volatile FLASH_WORD_SIZE *)(info->start[i]);
+    	if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL)
+      	info->protect[i] = 0;
+      else
+        info->protect[i] = addr2[2] & 1;
+	}
+
+	/*
+	 * Prevent writes to uninitialized FLASH.
+	 */
+	if (info->flash_id != FLASH_UNKNOWN) {
+#if 0 /* test-only */
+#ifdef CONFIG_ADCIOP
+		addr2 = (volatile unsigned char *)info->start[0];
+                addr2[ADDR0] = 0xAA;
+                addr2[ADDR1] = 0x55;
+                addr2[ADDR0] = 0xF0;  /* reset bank */
+#else
+		addr2 = (FLASH_WORD_SIZE *)info->start[0];
+		*addr2 = (FLASH_WORD_SIZE)0x00F000F0;	/* reset bank */
+#endif
+#else /* test-only */
+		addr2 = (FLASH_WORD_SIZE *)info->start[0];
+		*addr2 = (FLASH_WORD_SIZE)0x00F000F0;	/* reset bank */
+#endif /* test-only */
+	}
+	return (info->size);
+}
+
+int wait_for_DQ7(flash_info_t *info, int sect)
+{
+	ulong start, now, last;
+	volatile FLASH_WORD_SIZE *addr = (FLASH_WORD_SIZE *)(info->start[sect]);
+
+	start = get_timer (0);
+    last  = start;
+    while ((addr[0] & (FLASH_WORD_SIZE)0x00800080) != (FLASH_WORD_SIZE)0x00800080) {
+        if ((now = get_timer(start)) > CFG_FLASH_ERASE_TOUT) {
+            printf ("Timeout\n");
+            return -1;
+        }
+        /* show that we're waiting */
+        if ((now - last) > 1000) {  /* every second */
+	    			putc ('.');
+            last = now;
+        }
+    }
+	return 0;
+}
+
+int intel_wait_for_DQ7(flash_info_t *info, int sect)
+{
+	ulong start, now, last;
+	volatile FLASH_WORD_SIZE *addr = (FLASH_WORD_SIZE *)(info->start[sect]);
+
+		start = get_timer (0);
+    last  = start;
+    while ((addr[0] & (FLASH_WORD_SIZE)0x00800080) != (FLASH_WORD_SIZE)0x00800080) {
+        if ((now = get_timer(start)) > CFG_FLASH_ERASE_TOUT) {
+            printf ("Timeout\n");
+            return -1;
+        }
+        /* show that we're waiting */
+        if ((now - last) > 1000) {  /* every second */
+	    			putc ('.');
+            last = now;
+        }
+    }
+    addr[0]=(FLASH_WORD_SIZE)0x00500050;
+	return 0;
+}
+
+/*-----------------------------------------------------------------------
+ */
+
+int	flash_erase (flash_info_t *info, int s_first, int s_last)
+{
+	volatile FLASH_WORD_SIZE *addr = (FLASH_WORD_SIZE *)(info->start[0]);
+	volatile FLASH_WORD_SIZE *addr2;
+	int flag, prot, sect, l_sect;
+	int i;
+
+
+	if ((s_first < 0) || (s_first > s_last)) {
+		if (info->flash_id == FLASH_UNKNOWN) {
+			printf ("- missing\n");
+		} else {
+			printf ("- no sectors to erase\n");
+		}
+		return 1;
+	}
+
+	if (info->flash_id == FLASH_UNKNOWN) {
+		printf ("Can't erase unknown flash type - aborted\n");
+		return 1;
+	}
+
+	prot = 0;
+	for (sect=s_first; sect<=s_last; ++sect) {
+		if (info->protect[sect]) {
+			prot++;
+		}
+	}
+
+	if (prot) {
+		printf ("- Warning: %d protected sectors will not be erased!\n",
+			prot);
+	} else {
+		printf ("\n");
+	}
+
+	l_sect = -1;
+
+	/* Disable interrupts which might cause a timeout here */
+	flag = disable_interrupts();
+
+	/* Start erase on unprotected sectors */
+	for (sect = s_first; sect<=s_last; sect++) {
+		if (info->protect[sect] == 0) {	/* not protected */
+			addr2 = (FLASH_WORD_SIZE *)(info->start[sect]);
+			/*  printf("Erasing sector %p\n", addr2); */ /* CLH */
+	    if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) {
+				addr[ADDR0] = (FLASH_WORD_SIZE)0x00AA00AA;
+				addr[ADDR1] = (FLASH_WORD_SIZE)0x00550055;
+				addr[ADDR0] = (FLASH_WORD_SIZE)0x00800080;
+				addr[ADDR0] = (FLASH_WORD_SIZE)0x00AA00AA;
+				addr[ADDR1] = (FLASH_WORD_SIZE)0x00550055;
+				addr2[0] = (FLASH_WORD_SIZE)0x00500050;  /* block erase */
+				for (i=0; i<50; i++)
+					udelay(1000);  /* wait 1 ms */
+		    wait_for_DQ7(info, sect);
+		  }
+		  else {
+		  	if((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL){
+					addr2[0] = (FLASH_WORD_SIZE)0x00600060;  /* unlock sector */
+					addr2[0] = (FLASH_WORD_SIZE)0x00D000D0;  /* sector erase */
+			    intel_wait_for_DQ7(info, sect);
+					addr2[0] = (FLASH_WORD_SIZE)0x00200020;  /* sector erase */
+					addr2[0] = (FLASH_WORD_SIZE)0x00D000D0;  /* sector erase */
+			    intel_wait_for_DQ7(info, sect);
+				}
+				else {
+					addr[ADDR0] = (FLASH_WORD_SIZE)0x00AA00AA;
+					addr[ADDR1] = (FLASH_WORD_SIZE)0x00550055;
+					addr[ADDR0] = (FLASH_WORD_SIZE)0x00800080;
+					addr[ADDR0] = (FLASH_WORD_SIZE)0x00AA00AA;
+					addr[ADDR1] = (FLASH_WORD_SIZE)0x00550055;
+					addr2[0] = (FLASH_WORD_SIZE)0x00300030;  /* sector erase */
+			    wait_for_DQ7(info, sect);
+		 		}
+		 }
+		 l_sect = sect;
+		    /*
+		     * Wait for each sector to complete, it's more
+		     * reliable.  According to AMD Spec, you must
+		     * issue all erase commands within a specified
+		     * timeout.  This has been seen to fail, especially
+		     * if printf()s are included (for debug)!!
+		     */
+		 /*   wait_for_DQ7(info, sect); */
+		}
+	}
+
+	/* re-enable interrupts if necessary */
+	if (flag)
+		enable_interrupts();
+
+	/* wait at least 80us - let's wait 1 ms */
+	udelay (1000);
+
+#if 0
+	/*
+	 * We wait for the last triggered sector
+	 */
+	if (l_sect < 0)
+		goto DONE;
+	wait_for_DQ7(info, l_sect);
+
+DONE:
+#endif
+	/* reset to read mode */
+	addr = (FLASH_WORD_SIZE *)info->start[0];
+	addr[0] = (FLASH_WORD_SIZE)0x00F000F0;	/* reset bank */
+
+	printf (" done\n");
+	return 0;
+}
+
+void unlock_intel_sectors(flash_info_t *info,ulong addr,ulong cnt)
+{
+	int i;
+	volatile FLASH_WORD_SIZE *addr2;
+	long c;
+	c= (long)cnt;
+	for(i=info->sector_count-1;i>0;i--)
+	{
+		if(addr>=info->start[i])
+			break;
+	}
+	do {
+		addr2 = (FLASH_WORD_SIZE *)(info->start[i]);
+		addr2[0] = (FLASH_WORD_SIZE)0x00600060;  /* unlock sector setup */
+		addr2[0] = (FLASH_WORD_SIZE)0x00D000D0;  /* unlock sector */
+		intel_wait_for_DQ7(info, i);
+		i++;
+		c-=(info->start[i]-info->start[i-1]);
+	}while(c>0);
+
+
+}
+
+
+/*-----------------------------------------------------------------------
+ * Copy memory to flash, returns:
+ * 0 - OK
+ * 1 - write timeout
+ * 2 - Flash not erased
+ */
+
+int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt)
+{
+	ulong cp, wp, data;
+	int i, l, rc;
+
+	if((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL){
+		unlock_intel_sectors(info,addr,cnt);
+	}
+	wp = (addr & ~3);	/* get lower word aligned address */
+	/*
+	 * handle unaligned start bytes
+	 */
+	if ((l = addr - wp) != 0) {
+		data = 0;
+		for (i=0, cp=wp; i<l; ++i, ++cp) {
+			data = (data << 8) | (*(uchar *)cp);
+		}
+		for (; i<4 && cnt>0; ++i) {
+			data = (data << 8) | *src++;
+			--cnt;
+			++cp;
+		}
+		for (; cnt==0 && i<4; ++i, ++cp) {
+			data = (data << 8) | (*(uchar *)cp);
+		}
+
+		if ((rc = write_word(info, wp, data)) != 0) {
+			return (rc);
+		}
+		wp += 4;
+	}
+
+	/*
+	 * handle word aligned part
+	 */
+	while (cnt >= 4) {
+		data = 0;
+		for (i=0; i<4; ++i) {
+			data = (data << 8) | *src++;
+		}
+		if ((rc = write_word(info, wp, data)) != 0) {
+			return (rc);
+		}
+		wp  += 4;
+		if((wp % 0x10000)==0)
+			printf("."); /* show Progress */
+		cnt -= 4;
+	}
+
+	if (cnt == 0) {
+		return (0);
+	}
+
+	/*
+	 * handle unaligned tail bytes
+	 */
+	data = 0;
+	for (i=0, cp=wp; i<4 && cnt>0; ++i, ++cp) {
+		data = (data << 8) | *src++;
+		--cnt;
+	}
+	for (; i<4; ++i, ++cp) {
+		data = (data << 8) | (*(uchar *)cp);
+	}
+	rc=write_word(info, wp, data);
+	return rc;
+}
+
+/*-----------------------------------------------------------------------
+ * Write a word to Flash, returns:
+ * 0 - OK
+ * 1 - write timeout
+ * 2 - Flash not erased
+ */
+static FLASH_WORD_SIZE *read_val = (FLASH_WORD_SIZE *)0x200000;
+
+static int write_word (flash_info_t *info, ulong dest, ulong data)
+{
+	volatile FLASH_WORD_SIZE *addr2 = (FLASH_WORD_SIZE *)(info->start[0]);
+	volatile FLASH_WORD_SIZE *dest2 = (FLASH_WORD_SIZE *)dest;
+ 	volatile FLASH_WORD_SIZE *data2 = (FLASH_WORD_SIZE *)&data;
+	ulong start;
+	int flag;
+	int i;
+
+	/* Check if Flash is (sufficiently) erased */
+	if ((*((volatile FLASH_WORD_SIZE *)dest) &
+		(FLASH_WORD_SIZE)data) != (FLASH_WORD_SIZE)data) {
+		return (2);
+	}
+	/* Disable interrupts which might cause a timeout here */
+	flag = disable_interrupts();
+	for (i=0; i<4/sizeof(FLASH_WORD_SIZE); i++)
+	{
+		if((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL){
+			/* intel style writting */
+			dest2[i] = (FLASH_WORD_SIZE)0x00500050;
+			dest2[i] = (FLASH_WORD_SIZE)0x00400040;
+			*read_val++ = data2[i];
+			dest2[i] = data2[i];
+			if (flag)
+				enable_interrupts();
+			/* data polling for D7 */
+			start = get_timer (0);
+			udelay(10);
+			while ((dest2[i] & (FLASH_WORD_SIZE)0x00800080) != (FLASH_WORD_SIZE)0x00800080)
+			{
+				if (get_timer(start) > CFG_FLASH_WRITE_TOUT)
+					return (1);
+			}
+			dest2[i] = (FLASH_WORD_SIZE)0x00FF00FF; /* return to read mode */
+			udelay(10);
+			dest2[i] = (FLASH_WORD_SIZE)0x00FF00FF; /* return to read mode */
+			if(dest2[i]!=data2[i])
+				printf("Error at %p 0x%04X != 0x%04X\n",&dest2[i],dest2[i],data2[i]);
+		}
+		else {
+			addr2[ADDR0] = (FLASH_WORD_SIZE)0x00AA00AA;
+			addr2[ADDR1] = (FLASH_WORD_SIZE)0x00550055;
+			addr2[ADDR0] = (FLASH_WORD_SIZE)0x00A000A0;
+			dest2[i] = data2[i];
+			/* re-enable interrupts if necessary */
+			if (flag)
+				enable_interrupts();
+			/* data polling for D7 */
+			start = get_timer (0);
+			while ((dest2[i] & (FLASH_WORD_SIZE)0x00800080) !=
+				(data2[i] & (FLASH_WORD_SIZE)0x00800080)) {
+				if (get_timer(start) > CFG_FLASH_WRITE_TOUT) {
+        				return (1);
+				}
+			}
+		}
+	}
+	return (0);
+}
+
+/*-----------------------------------------------------------------------
+ */
diff --git a/board/mpl/common/isa.c b/board/mpl/common/isa.c
new file mode 100644
index 0000000..40731fc
--- /dev/null
+++ b/board/mpl/common/isa.c
@@ -0,0 +1,469 @@
+/*
+ * (C) Copyright 2001
+ * Denis Peter, MPL AG Switzerland
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ *
+ *
+ * TODO: clean-up
+ */
+
+#include <common.h>
+#include <asm/processor.h>
+#include <devices.h>
+#include "isa.h"
+#include "piix4_pci.h"
+#include "kbd.h"
+#include "video.h"
+
+extern int drv_isa_kbd_init (void);
+
+#undef	ISA_DEBUG
+
+#ifdef	ISA_DEBUG
+#define	PRINTF(fmt,args...)	printf (fmt ,##args)
+#else
+#define PRINTF(fmt,args...)
+#endif
+
+#ifndef	TRUE
+#define TRUE            1
+#endif
+#ifndef FALSE
+#define FALSE           0
+#endif
+
+
+
+/* fdc (logical device 0) */
+const SIO_LOGDEV_TABLE sio_fdc[] = {
+	{0x60, 3},			/* set IO to FDPort (3F0) */
+	{0x61, 0xF0},		/* set IO to FDPort (3F0) */
+	{0x70, 06},			/* set IRQ 6 for FDPort */
+	{0x74, 02},			/* set DMA 2 for FDPort */
+	{0xF0, 0x05},		/* set to PS2 type */
+	{0xF1, 0x00},	  /* default value */
+	{0x30, 1},			/* and activate the device */
+	{0xFF, 0}				/* end of device table */
+};
+/* paralell port (logical device 3) */
+const SIO_LOGDEV_TABLE sio_pport[] = {
+	{0x60, 3},			/* set IO to PPort (378) */
+	{0x61, 0x78},		/* set IO to PPort (378) */
+	{0x70, 07},			/* set IRQ 7 for PPort */
+	{0xF1, 00},			/* set PPort to normal */
+	{0x30, 1},			/* and activate the device */
+	{0xFF, 0}				/* end of device table */
+};
+/* paralell port (logical device 3) Floppy assigned to lpt */
+const SIO_LOGDEV_TABLE sio_pport_fdc[] = {
+	{0x60, 3},			/* set IO to PPort (378) */
+	{0x61, 0x78},		/* set IO to PPort (378) */
+	{0x70, 07},			/* set IRQ 7 for PPort */
+	{0xF1, 02},			/* set PPort to Floppy */
+	{0x30, 1},			/* and activate the device */
+	{0xFF, 0}				/* end of device table */
+};
+/* uart 1 (logical device 4) */
+const SIO_LOGDEV_TABLE sio_com1[] = {
+	{0x60, 3},			/* set IO to COM1 (3F8) */
+	{0x61, 0xF8},		/* set IO to COM1 (3F8) */
+	{0x70, 04},			/* set IRQ 4 for COM1 */
+	{0x30, 1},			/* and activate the device */
+	{0xFF, 0}				/* end of device table */
+};
+/* uart 2 (logical device 5) */
+const SIO_LOGDEV_TABLE sio_com2[] = {
+	{0x60, 2},			/* set IO to COM2 (2F8) */
+	{0x61, 0xF8},		/* set IO to COM2 (2F8) */
+	{0x70, 03},			/* set IRQ 3 for COM2 */
+	{0x30, 1},			/* and activate the device */
+	{0xFF, 0}				/* end of device table */
+};
+
+/* keyboard controller (logical device 7) */
+const SIO_LOGDEV_TABLE sio_keyboard[] = {
+	{0x70, 1},			/* set IRQ 1 for keyboard */
+	{0x72, 12},			/* set IRQ 12 for mouse */
+	{0xF0, 0},			/* disable Port92 (this is a PowerPC!!) */
+	{0x30, 1},			/* and activate the device */
+	{0xFF, 0}				/* end of device table */
+};
+
+
+/*******************************************************************************
+* Config SuperIO FDC37C672
+********************************************************************************/
+unsigned char open_cfg_super_IO(int address)
+{
+	out8(CFG_ISA_IO_BASE_ADDRESS | address,0x55); /* open config */
+	out8(CFG_ISA_IO_BASE_ADDRESS | address,0x20); /* set address to DEV ID */
+	if(in8(CFG_ISA_IO_BASE_ADDRESS | address | 0x1)==0x40) /* ok Device ID is correct */
+		return TRUE;
+	else
+		return FALSE;
+}
+
+void close_cfg_super_IO(int address)
+{
+	out8(CFG_ISA_IO_BASE_ADDRESS | address,0xAA); /* close config */
+}
+
+
+unsigned char read_cfg_super_IO(int address, unsigned char function, unsigned char regaddr)
+{
+	/* assuming config reg is open */
+	out8(CFG_ISA_IO_BASE_ADDRESS | address,0x7); /* points to the function reg */
+	out8(CFG_ISA_IO_BASE_ADDRESS | address | 1,function); /* set the function no */
+	out8(CFG_ISA_IO_BASE_ADDRESS | address,regaddr); /* sets the address in the function */
+	return in8(CFG_ISA_IO_BASE_ADDRESS | address | 1);
+}
+
+void write_cfg_super_IO(int address, unsigned char function, unsigned char regaddr, unsigned char data)
+{
+	/* assuming config reg is open */
+	out8(CFG_ISA_IO_BASE_ADDRESS | address,0x7); /* points to the function reg */
+	out8(CFG_ISA_IO_BASE_ADDRESS | address | 1,function); /* set the function no */
+	out8(CFG_ISA_IO_BASE_ADDRESS | address,regaddr); /* sets the address in the function */
+	out8(CFG_ISA_IO_BASE_ADDRESS | address | 1,data); /* writes the data */
+}
+
+void isa_write_table(SIO_LOGDEV_TABLE *ldt,unsigned char ldev)
+{
+	while (ldt->index != 0xFF) {
+		write_cfg_super_IO(SIO_CFG_PORT, ldev, ldt->index, ldt->val);
+		ldt++;
+	} /* endwhile */
+}
+
+void isa_sio_loadtable(void)
+{
+	unsigned char *s = getenv("floppy");
+	/* setup Floppy device 0*/
+	isa_write_table((SIO_LOGDEV_TABLE *)&sio_fdc,0);
+	/* setup parallel port device 3 */
+	if(s && !strncmp(s, "lpt", 3)) {
+		printf("SIO:   Floppy assigned to LPT\n");
+		/* floppy is assigned to the LPT */
+		isa_write_table((SIO_LOGDEV_TABLE *)&sio_pport_fdc,3);
+	}
+	else {
+		/*printf("Floppy assigned to internal port\n");*/
+		isa_write_table((SIO_LOGDEV_TABLE *)&sio_pport,3);
+	}
+	/* setup Com1 port device 4 */
+	isa_write_table((SIO_LOGDEV_TABLE *)&sio_com1,4);
+	/* setup Com2 port device 5 */
+	isa_write_table((SIO_LOGDEV_TABLE *)&sio_com2,5);
+	/* setup keyboards device 7 */
+	isa_write_table((SIO_LOGDEV_TABLE *)&sio_keyboard,7);
+}
+
+
+void isa_sio_setup(void)
+{
+	if(open_cfg_super_IO(SIO_CFG_PORT)==TRUE)
+	{
+		isa_sio_loadtable();
+		close_cfg_super_IO(0x3F0);
+	}
+}
+
+
+
+/******************************************************************************
+ * IRQ Controller
+ * we use the Vector mode
+ */
+
+struct	isa_irq_action {
+	 interrupt_handler_t *handler;
+	 void *arg;
+	 int count;
+};
+
+static struct isa_irq_action isa_irqs[16];
+
+
+/*
+ * This contains the irq mask for both 8259A irq controllers,
+ */
+static unsigned int cached_irq_mask = 0xffff;
+
+#define cached_imr1	(unsigned char)cached_irq_mask
+#define cached_imr2	(unsigned char)(cached_irq_mask>>8)
+#define IMR_1		CFG_ISA_IO_BASE_ADDRESS + PIIX4_ISA_INT1_OCW1
+#define IMR_2		CFG_ISA_IO_BASE_ADDRESS + PIIX4_ISA_INT2_OCW1
+#define ICW1_1	CFG_ISA_IO_BASE_ADDRESS + PIIX4_ISA_INT1_ICW1
+#define ICW1_2	CFG_ISA_IO_BASE_ADDRESS + PIIX4_ISA_INT2_ICW1
+#define ICW2_1	CFG_ISA_IO_BASE_ADDRESS + PIIX4_ISA_INT1_ICW2
+#define ICW2_2	CFG_ISA_IO_BASE_ADDRESS + PIIX4_ISA_INT2_ICW2
+#define ICW3_1	ICW2_1
+#define ICW3_2	ICW2_2
+#define ICW4_1	ICW2_1
+#define ICW4_2	ICW2_2
+#define ISR_1		ICW1_1
+#define ISR_2		ICW1_2
+
+
+void disable_8259A_irq(unsigned int irq)
+{
+	unsigned int mask = 1 << irq;
+
+	cached_irq_mask |= mask;
+	if (irq & 8)
+		out8(IMR_2,cached_imr2);
+	else
+		out8(IMR_1,cached_imr1);
+}
+
+void enable_8259A_irq(unsigned int irq)
+{
+	unsigned int mask = ~(1 << irq);
+
+	cached_irq_mask &= mask;
+	if (irq & 8)
+		out8(IMR_2,cached_imr2);
+	else
+		out8(IMR_1,cached_imr1);
+}
+/*
+int i8259A_irq_pending(unsigned int irq)
+{
+	unsigned int mask = 1<<irq;
+	int ret;
+
+	if (irq < 8)
+		ret = inb(0x20) & mask;
+	else
+		ret = inb(0xA0) & (mask >> 8);
+	spin_unlock_irqrestore(&i8259A_lock, flags);
+
+	return ret;
+}
+*/
+
+/*
+ * This function assumes to be called rarely. Switching between
+ * 8259A registers is slow.
+ */
+int i8259A_irq_real(unsigned int irq)
+{
+	int value;
+	int irqmask = 1<<irq;
+
+	if (irq < 8) {
+		out8(ISR_1,0x0B);		/* ISR register */
+		value = in8(ISR_1) & irqmask;
+		out8(ISR_1,0x0A);		/* back to the IRR register */
+		return value;
+	}
+	out8(ISR_2,0x0B);		/* ISR register */
+	value = in8(ISR_2) & (irqmask >> 8);
+	out8(ISR_2,0x0A);		/* back to the IRR register */
+	return value;
+}
+
+/*
+ * Careful! The 8259A is a fragile beast, it pretty
+ * much _has_ to be done exactly like this (mask it
+ * first, _then_ send the EOI, and the order of EOI
+ * to the two 8259s is important!
+ */
+void mask_and_ack_8259A(unsigned int irq)
+{
+	unsigned int irqmask = 1 << irq;
+	unsigned int temp_irqmask = cached_irq_mask;
+	/*
+	 * Lightweight spurious IRQ detection. We do not want
+	 * to overdo spurious IRQ handling - it's usually a sign
+	 * of hardware problems, so we only do the checks we can
+	 * do without slowing down good hardware unnecesserily.
+	 *
+	 * Note that IRQ7 and IRQ15 (the two spurious IRQs
+	 * usually resulting from the 8259A-1|2 PICs) occur
+	 * even if the IRQ is masked in the 8259A. Thus we
+	 * can check spurious 8259A IRQs without doing the
+	 * quite slow i8259A_irq_real() call for every IRQ.
+	 * This does not cover 100% of spurious interrupts,
+	 * but should be enough to warn the user that there
+	 * is something bad going on ...
+	 */
+	if (temp_irqmask & irqmask)
+		goto spurious_8259A_irq;
+	temp_irqmask |= irqmask;
+
+handle_real_irq:
+	if (irq & 8) {
+		in8(IMR_2);		/* DUMMY - (do we need this?) */
+		out8(IMR_2,(unsigned char)(temp_irqmask>>8));
+		out8(ISR_2,0x60+(irq&7));/* 'Specific EOI' to slave */
+		out8(ISR_1,0x62);	/* 'Specific EOI' to master-IRQ2 */
+		out8(IMR_2,cached_imr2); /* turn it on again */
+	} else {
+		in8(IMR_1);		/* DUMMY - (do we need this?) */
+		out8(IMR_1,(unsigned char)temp_irqmask);
+		out8(ISR_1,0x60+irq);	/* 'Specific EOI' to master */
+		out8(IMR_1,cached_imr1); /* turn it on again */
+	}
+
+	return;
+
+spurious_8259A_irq:
+	/*
+	 * this is the slow path - should happen rarely.
+	 */
+	if (i8259A_irq_real(irq))
+		/*
+		 * oops, the IRQ _is_ in service according to the
+		 * 8259A - not spurious, go handle it.
+		 */
+		goto handle_real_irq;
+
+	{
+		static int spurious_irq_mask;
+		/*
+		 * At this point we can be sure the IRQ is spurious,
+		 * lets ACK and report it. [once per IRQ]
+		 */
+		if (!(spurious_irq_mask & irqmask)) {
+			PRINTF("spurious 8259A interrupt: IRQ%d.\n", irq);
+			spurious_irq_mask |= irqmask;
+		}
+		/* irq_err_count++; */
+		/*
+		 * Theoretically we do not have to handle this IRQ,
+		 * but in Linux this does not cause problems and is
+		 * simpler for us.
+		 */
+		goto handle_real_irq;
+	}
+}
+
+void init_8259A(void)
+{
+	out8(IMR_1,0xff);	/* mask all of 8259A-1 */
+	out8(IMR_2,0xff);	/* mask all of 8259A-2 */
+
+	out8(ICW1_1,0x11);	/* ICW1: select 8259A-1 init */
+	out8(ICW2_1,0x20 + 0);	/* ICW2: 8259A-1 IR0-7 mapped to 0x20-0x27 */
+	out8(ICW3_1,0x04);	/* 8259A-1 (the master) has a slave on IR2 */
+	out8(ICW4_1,0x01);	/* master expects normal EOI */
+	out8(ICW1_2,0x11);	/* ICW2: select 8259A-2 init */
+	out8(ICW2_2,0x20 + 8);	/* ICW2: 8259A-2 IR0-7 mapped to 0x28-0x2f */
+	out8(ICW3_2,0x02);	/* 8259A-2 is a slave on master's IR2 */
+	out8(ICW4_2,0x01);	/* (slave's support for AEOI in flat mode
+				    is to be investigated) */
+	udelay(10000);		/* wait for 8259A to initialize */
+	out8(IMR_1,cached_imr1);	/* restore master IRQ mask */
+	udelay(10000);		/* wait for 8259A to initialize */
+	out8(IMR_2,cached_imr2);	/* restore slave IRQ mask */
+}
+
+
+#define PCI_INT_ACK_ADDR 0xEED00000
+
+int handle_isa_int(void)
+{
+	unsigned long irqack;
+	unsigned char isr1,isr2,irq;
+	/* first we acknokledge the int via the PCI bus */
+	irqack=in32(PCI_INT_ACK_ADDR);
+	/* now we get the ISRs */
+	isr2=in8(ISR_2);
+	isr1=in8(ISR_1);
+	irq=(unsigned char)irqack;
+	if((irq==7)&&((isr1&0x80)==0)) {
+		PRINTF("IRQ7 detected but not in ISR\n");
+	}
+	else {
+		/* we should handle cascaded interrupts here also */
+		/* printf("ISA Irq %d\n",irq); */
+		isa_irqs[irq].count++;
+  	if (isa_irqs[irq].handler != NULL)
+  		(*isa_irqs[irq].handler)(isa_irqs[irq].arg);      /* call isr */
+  	else
+  	{
+     	PRINTF ("bogus interrupt vector 0x%x\n", irq);
+  	}
+	}
+	/* issue EOI instruction to clear the IRQ */
+	mask_and_ack_8259A(irq);
+	return 0;
+}
+
+
+
+/******************************************************************
+ * Install and free an ISA interrupt handler.
+ */
+
+void isa_irq_install_handler(int vec, interrupt_handler_t *handler, void *arg)
+{
+  if (isa_irqs[vec].handler != NULL) {
+   printf ("ISA Interrupt vector %d: handler 0x%x replacing 0x%x\n",
+           vec, (uint)handler, (uint)isa_irqs[vec].handler);
+  }
+  isa_irqs[vec].handler = handler;
+  isa_irqs[vec].arg     = arg;
+  enable_8259A_irq(vec);
+ 	PRINTF ("Install ISA IRQ %d ==> %p, @ %p mask=%04x\n", vec, handler, &isa_irqs[vec].handler,cached_irq_mask);
+
+}
+
+void isa_irq_free_handler(int vec)
+{
+	disable_8259A_irq(vec);
+  isa_irqs[vec].handler = NULL;
+  isa_irqs[vec].arg     = NULL;
+ 	printf ("Free ISA IRQ %d mask=%04x\n", vec, cached_irq_mask);
+
+}
+
+/****************************************************************************/
+void isa_init_irq_contr(void)
+{
+	int i;
+	/* disable all Interrupts */
+	/* first write icws controller 1 */
+	for(i=0;i<16;i++)
+	{
+		isa_irqs[i].handler=NULL;
+		isa_irqs[i].arg=NULL;
+		isa_irqs[i].count=0;
+	}
+	init_8259A();
+	out8(IMR_2,0xFF);
+}
+
+
+/******************************************************************
+ * Init the ISA bus and devices.
+ */
+
+
+int isa_init(void)
+{
+	isa_sio_setup();
+	drv_isa_kbd_init();
+	return 0;
+}
+
+
+
diff --git a/board/mpl/common/kbd.c b/board/mpl/common/kbd.c
new file mode 100644
index 0000000..5b87cdb
--- /dev/null
+++ b/board/mpl/common/kbd.c
@@ -0,0 +1,655 @@
+/*
+ * (C) Copyright 2001
+ * Denis Peter, MPL AG Switzerland, d.peter@mpl.ch
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ *
+ *
+ * Source partly derived from:
+ * linux/drivers/char/pc_keyb.c
+ *
+ *
+ */
+#include <common.h>
+#include <asm/processor.h>
+#include <devices.h>
+#include "isa.h"
+#include "kbd.h"
+
+
+unsigned char kbd_read_status(void);
+unsigned char kbd_read_input(void);
+void kbd_send_data(unsigned char data);
+void disable_8259A_irq(unsigned int irq);
+void enable_8259A_irq(unsigned int irq);
+
+/* used only by send_data - set by keyboard_interrupt */
+
+
+#undef KBG_DEBUG
+
+#ifdef KBG_DEBUG
+#define	PRINTF(fmt,args...)	printf (fmt ,##args)
+#else
+#define PRINTF(fmt,args...)
+#endif
+
+#define KBD_STAT_KOBF		0x01
+#define KBD_STAT_IBF		0x02
+#define KBD_STAT_SYS		0x04
+#define KBD_STAT_CD			0x08
+#define KBD_STAT_LOCK		0x10
+#define KBD_STAT_MOBF		0x20
+#define KBD_STAT_TI_OUT	0x40
+#define KBD_STAT_PARERR	0x80
+
+#define KBD_INIT_TIMEOUT 1000		/* Timeout in ms for initializing the keyboard */
+#define KBC_TIMEOUT 250			/* Timeout in ms for sending to keyboard controller */
+#define KBD_TIMEOUT 2000		/* Timeout in ms for keyboard command acknowledge */
+/*
+ *	Keyboard Controller Commands
+ */
+
+#define KBD_CCMD_READ_MODE			0x20	/* Read mode bits */
+#define KBD_CCMD_WRITE_MODE			0x60	/* Write mode bits */
+#define KBD_CCMD_GET_VERSION		0xA1	/* Get controller version */
+#define KBD_CCMD_MOUSE_DISABLE	0xA7	/* Disable mouse interface */
+#define KBD_CCMD_MOUSE_ENABLE		0xA8	/* Enable mouse interface */
+#define KBD_CCMD_TEST_MOUSE			0xA9	/* Mouse interface test */
+#define KBD_CCMD_SELF_TEST			0xAA	/* Controller self test */
+#define KBD_CCMD_KBD_TEST				0xAB	/* Keyboard interface test */
+#define KBD_CCMD_KBD_DISABLE		0xAD	/* Keyboard interface disable */
+#define KBD_CCMD_KBD_ENABLE			0xAE	/* Keyboard interface enable */
+#define KBD_CCMD_WRITE_AUX_OBUF	0xD3    /* Write to output buffer as if
+					   initiated by the auxiliary device */
+#define KBD_CCMD_WRITE_MOUSE		0xD4	/* Write the following byte to the mouse */
+
+/*
+ *	Keyboard Commands
+ */
+
+#define KBD_CMD_SET_LEDS				0xED	/* Set keyboard leds */
+#define KBD_CMD_SET_RATE				0xF3	/* Set typematic rate */
+#define KBD_CMD_ENABLE					0xF4	/* Enable scanning */
+#define KBD_CMD_DISABLE					0xF5	/* Disable scanning */
+#define KBD_CMD_RESET						0xFF	/* Reset */
+
+/*
+ *	Keyboard Replies
+ */
+
+#define KBD_REPLY_POR						0xAA	/* Power on reset */
+#define KBD_REPLY_ACK						0xFA	/* Command ACK */
+#define KBD_REPLY_RESEND				0xFE	/* Command NACK, send the cmd again */
+
+/*
+ *	Status Register Bits
+ */
+
+#define KBD_STAT_OBF 						0x01	/* Keyboard output buffer full */
+#define KBD_STAT_IBF 						0x02	/* Keyboard input buffer full */
+#define KBD_STAT_SELFTEST				0x04	/* Self test successful */
+#define KBD_STAT_CMD						0x08	/* Last write was a command write (0=data) */
+#define KBD_STAT_UNLOCKED				0x10	/* Zero if keyboard locked */
+#define KBD_STAT_MOUSE_OBF			0x20	/* Mouse output buffer full */
+#define KBD_STAT_GTO 						0x40	/* General receive/xmit timeout */
+#define KBD_STAT_PERR 					0x80	/* Parity error */
+
+#define AUX_STAT_OBF (KBD_STAT_OBF | KBD_STAT_MOUSE_OBF)
+
+/*
+ *	Controller Mode Register Bits
+ */
+
+#define KBD_MODE_KBD_INT				0x01	/* Keyboard data generate IRQ1 */
+#define KBD_MODE_MOUSE_INT			0x02	/* Mouse data generate IRQ12 */
+#define KBD_MODE_SYS 						0x04	/* The system flag (?) */
+#define KBD_MODE_NO_KEYLOCK			0x08	/* The keylock doesn't affect the keyboard if set */
+#define KBD_MODE_DISABLE_KBD		0x10	/* Disable keyboard interface */
+#define KBD_MODE_DISABLE_MOUSE	0x20	/* Disable mouse interface */
+#define KBD_MODE_KCC 						0x40	/* Scan code conversion to PC format */
+#define KBD_MODE_RFU						0x80
+
+
+#define KDB_DATA_PORT			0x60
+#define KDB_COMMAND_PORT	0x64
+
+#define 	LED_SCR		0x01	/* scroll lock led */
+#define 	LED_CAP		0x04	/* caps lock led */
+#define 	LED_NUM		0x02	/* num lock led */
+
+#define 	KBD_BUFFER_LEN 0x20  /* size of the keyboardbuffer */
+
+
+
+
+static volatile char kbd_buffer[KBD_BUFFER_LEN];
+static volatile int in_pointer = 0;
+static volatile int out_pointer = 0;
+
+
+static unsigned char num_lock = 0;
+static unsigned char caps_lock = 0;
+static unsigned char scroll_lock = 0;
+static unsigned char shift = 0;
+static unsigned char ctrl = 0;
+static unsigned char alt = 0;
+static unsigned char e0 = 0;
+static unsigned char leds = 0;
+
+#define DEVNAME "kbd"
+
+/* Simple translation table for the keys */
+
+static unsigned char kbd_plain_xlate[] = {
+	0xff,0x1b, '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '-', '=','\b','\t',	/* 0x00 - 0x0f */
+	 'q', 'w', 'e', 'r', 't', 'y', 'u', 'i', 'o', 'p', '[', ']','\r',0xff, 'a', 's',	/* 0x10 - 0x1f */
+	 'd', 'f', 'g', 'h', 'j', 'k', 'l', ';','\'', '`',0xff,'\\', 'z', 'x', 'c', 'v',	/* 0x20 - 0x2f */
+	 'b', 'n', 'm', ',', '.', '/',0xff,0xff,0xff, ' ',0xff,0xff,0xff,0xff,0xff,0xff,	/* 0x30 - 0x3f */
+	0xff,0xff,0xff,0xff,0xff,0xff,0xff, '7', '8', '9', '-', '4', '5', '6', '+', '1',	/* 0x40 - 0x4f */
+	 '2', '3', '0', '.',0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,  /* 0x50 - 0x5F */
+	'\r',0xff,0xff
+	};
+
+static unsigned char kbd_shift_xlate[] = {
+	0xff,0x1b, '!', '@', '#', '$', '%', '^', '&', '*', '(', ')', '_', '+','\b','\t',	/* 0x00 - 0x0f */
+	 'Q', 'W', 'E', 'R', 'T', 'Y', 'U', 'I', 'O', 'P', '{', '}','\r',0xff, 'A', 'S',	/* 0x10 - 0x1f */
+	 'D', 'F', 'G', 'H', 'J', 'K', 'L', ':', '"', '~',0xff, '|', 'Z', 'X', 'C', 'V',	/* 0x20 - 0x2f */
+	 'B', 'N', 'M', '<', '>', '?',0xff,0xff,0xff, ' ',0xff,0xff,0xff,0xff,0xff,0xff,	/* 0x30 - 0x3f */
+	0xff,0xff,0xff,0xff,0xff,0xff,0xff, '7', '8', '9', '-', '4', '5', '6', '+', '1',	/* 0x40 - 0x4f */
+	 '2', '3', '0', '.',0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,  /* 0x50 - 0x5F */
+	'\r',0xff,0xff
+	};
+
+static unsigned char kbd_ctrl_xlate[] = {
+	0xff,0x1b, '1',0x00, '3', '4', '5',0x1E, '7', '8', '9', '0',0x1F, '=','\b','\t',	/* 0x00 - 0x0f */
+	0x11,0x17,0x05,0x12,0x14,0x18,0x15,0x09,0x0f,0x10,0x1b,0x1d,'\n',0xff,0x01,0x13,	/* 0x10 - 0x1f */
+	0x04,0x06,0x08,0x09,0x0a,0x0b,0x0c, ';','\'', '~',0x00,0x1c,0x1a,0x18,0x03,0x16,	/* 0x20 - 0x2f */
+	0x02,0x0e,0x0d, '<', '>', '?',0xff,0xff,0xff,0x00,0xff,0xff,0xff,0xff,0xff,0xff,	/* 0x30 - 0x3f */
+	0xff,0xff,0xff,0xff,0xff,0xff,0xff, '7', '8', '9', '-', '4', '5', '6', '+', '1',	/* 0x40 - 0x4f */
+	 '2', '3', '0', '.',0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,  /* 0x50 - 0x5F */
+	'\r',0xff,0xff
+	};
+
+/******************************************************************
+ * Init
+ ******************************************************************/
+int isa_kbd_init(void)
+{
+	char* result;
+	result=kbd_initialize();
+	if(result==NULL) {
+		PRINTF("AT Keyboard initialized\n");
+		irq_install_handler(25, (interrupt_handler_t *)handle_isa_int, NULL);
+		isa_irq_install_handler(KBD_INTERRUPT, (interrupt_handler_t *)kbd_interrupt, NULL);
+		return (1);
+	}
+	else {
+		printf("%s\n",result);
+		return (-1);
+	}
+}
+
+#ifdef CFG_CONSOLE_OVERWRITE_ROUTINE
+extern int overwrite_console (void);
+#else
+int overwrite_console (void)
+{
+	return (0);
+}
+#endif
+
+int drv_isa_kbd_init (void)
+{
+	int error;
+  	device_t kbddev ;
+	char *stdinname  = getenv ("stdin");
+
+	if(isa_kbd_init()==-1)
+		return -1;
+  	memset (&kbddev, 0, sizeof(kbddev));
+  	strcpy(kbddev.name, DEVNAME);
+  	kbddev.flags =  DEV_FLAGS_INPUT | DEV_FLAGS_SYSTEM;
+  	kbddev.putc = NULL ;
+	kbddev.puts = NULL ;
+	kbddev.getc = kbd_getc ;
+	kbddev.tstc = kbd_testc ;
+
+ 	error = device_register (&kbddev);
+	if(error==0) {
+		/* check if this is the standard input device */
+		if(strcmp(stdinname,DEVNAME)==0) {
+			/* reassign the console */
+			if(overwrite_console()) {
+				return 1;
+			}
+			error=console_assign(stdin,DEVNAME);
+			if(error==0)
+				return 1;
+			else
+				return error;
+		}
+		return 1;
+	}
+	return error;
+}
+
+/******************************************************************
+ * Queue handling
+ ******************************************************************/
+/* puts character in the queue and sets up the in and out pointer */
+void kbd_put_queue(char data)
+{
+	if((in_pointer+1)==KBD_BUFFER_LEN) {
+		if(out_pointer==0) {
+			return; /* buffer full */
+		} else{
+			in_pointer=0;
+		}
+	} else {
+		if((in_pointer+1)==out_pointer)
+			return; /* buffer full */
+		in_pointer++;
+	}
+	kbd_buffer[in_pointer]=data;
+	return;
+}
+
+/* test if a character is in the queue */
+int kbd_testc(void)
+{
+	if(in_pointer==out_pointer)
+		return(0); /* no data */
+	else
+		return(1);
+}
+/* gets the character from the queue */
+int kbd_getc(void)
+{
+	char c;
+	while(in_pointer==out_pointer);
+	if((out_pointer+1)==KBD_BUFFER_LEN)
+		out_pointer=0;
+	else
+		out_pointer++;
+	c=kbd_buffer[out_pointer];
+	return (int)c;
+
+}
+
+
+/* set LEDs */
+
+void kbd_set_leds(void)
+{
+	if(caps_lock==0)
+		leds&=~LED_CAP; /* switch caps_lock off */
+	else
+		leds|=LED_CAP; /* switch on LED */
+	if(num_lock==0)
+		leds&=~LED_NUM; /* switch LED off */
+	else
+		leds|=LED_NUM;  /* switch on LED */
+	if(scroll_lock==0)
+		leds&=~LED_SCR; /* switch LED off */
+	else
+		leds|=LED_SCR; /* switch on LED */
+	kbd_send_data(KBD_CMD_SET_LEDS);
+	kbd_send_data(leds);
+}
+
+
+void handle_keyboard_event(unsigned char scancode)
+{
+	unsigned char keycode;
+
+	/*  Convert scancode to keycode */
+	PRINTF("scancode %x\n",scancode);
+	if(scancode==0xe0) {
+		e0=1; /* special charakters */
+		return;
+	}
+	if(e0==1) {
+		e0=0; /* delete flag */
+		if(!(	((scancode&0x7F)==0x38)|| /* the right ctrl key */
+					((scancode&0x7F)==0x1D)|| /* the right alt key */
+					((scancode&0x7F)==0x35)||	/* the right '/' key */
+					((scancode&0x7F)==0x1C) ))  /* the right enter key */
+			/* we swallow unknown e0 codes */
+			return;
+	}
+	/* special cntrl keys */
+	switch(scancode)
+	{
+		case 0x2A:
+		case 0x36: /* shift pressed */
+			shift=1;
+			return; /* do nothing else */
+		case 0xAA:
+		case 0xB6: /* shift released */
+			shift=0;
+			return; /* do nothing else */
+		case 0x38: /* alt pressed */
+			alt=1;
+			return; /* do nothing else */
+		case 0xB8: /* alt released */
+			alt=0;
+			return; /* do nothing else */
+		case 0x1d: /* ctrl pressed */
+			ctrl=1;
+			return; /* do nothing else */
+		case 0x9d: /* ctrl released */
+			ctrl=0;
+			return; /* do nothing else */
+		case 0x46: /* scrollock pressed */
+			scroll_lock=~scroll_lock;
+			kbd_set_leds();
+			return; /* do nothing else */
+		case 0x3A: /* capslock pressed */
+			caps_lock=~caps_lock;
+			kbd_set_leds();
+			return;
+		case 0x45: /* numlock pressed */
+			num_lock=~num_lock;
+			kbd_set_leds();
+			return;
+		case 0xC6: /* scroll lock released */
+		case 0xC5: /* num lock released */
+		case 0xBA: /* caps lock released */
+			return; /* just swallow */
+	}
+	if((scancode&0x80)==0x80) /* key released */
+		return;
+	/* now, decide which table we need */
+	if(scancode > (sizeof(kbd_plain_xlate)/sizeof(kbd_plain_xlate[0]))) { /* scancode not in list */
+		PRINTF("unkown scancode %X\n",scancode);
+		return; /* swallow it */
+	}
+	/* setup plain code first */
+	keycode=kbd_plain_xlate[scancode];
+	if(caps_lock==1) { /* caps_lock is pressed, overwrite plain code */
+		if(scancode > (sizeof(kbd_shift_xlate)/sizeof(kbd_shift_xlate[0]))) { /* scancode not in list */
+			PRINTF("unkown caps-locked scancode %X\n",scancode);
+			return; /* swallow it */
+		}
+		keycode=kbd_shift_xlate[scancode];
+		if(keycode<'A') { /* we only want the alphas capital */
+			keycode=kbd_plain_xlate[scancode];
+		}
+	}
+	if(shift==1) { /* shift overwrites caps_lock */
+		if(scancode > (sizeof(kbd_shift_xlate)/sizeof(kbd_shift_xlate[0]))) { /* scancode not in list */
+			PRINTF("unkown shifted scancode %X\n",scancode);
+			return; /* swallow it */
+		}
+		keycode=kbd_shift_xlate[scancode];
+	}
+	if(ctrl==1) { /* ctrl overwrites caps_lock and shift */
+		if(scancode > (sizeof(kbd_ctrl_xlate)/sizeof(kbd_ctrl_xlate[0]))) { /* scancode not in list */
+			PRINTF("unkown ctrl scancode %X\n",scancode);
+			return; /* swallow it */
+		}
+		keycode=kbd_ctrl_xlate[scancode];
+	}
+	/* check if valid keycode */
+	if(keycode==0xff) {
+		PRINTF("unkown scancode %X\n",scancode);
+		return; /* swallow unknown codes */
+	}
+
+	kbd_put_queue(keycode);
+	PRINTF("%x\n",keycode);
+}
+
+/*
+ * This reads the keyboard status port, and does the
+ * appropriate action.
+ *
+ */
+unsigned char handle_kbd_event(void)
+{
+	unsigned char status = kbd_read_status();
+	unsigned int work = 10000;
+
+	while ((--work > 0) && (status & KBD_STAT_OBF)) {
+		unsigned char scancode;
+
+		scancode = kbd_read_input();
+
+		/* Error bytes must be ignored to make the
+		   Synaptics touchpads compaq use work */
+		/* Ignore error bytes */
+		if (!(status & (KBD_STAT_GTO | KBD_STAT_PERR)))
+		{
+			if (status & KBD_STAT_MOUSE_OBF)
+				; /* not supported: handle_mouse_event(scancode); */
+			else
+				handle_keyboard_event(scancode);
+		}
+		status = kbd_read_status();
+	}
+	if (!work)
+		PRINTF("pc_keyb: controller jammed (0x%02X).\n", status);
+	return status;
+}
+
+
+
+/******************************************************************************
+ * Lowlevel Part of keyboard section
+ */
+unsigned char kbd_read_status(void)
+{
+	return(in8(CFG_ISA_IO_BASE_ADDRESS + KDB_COMMAND_PORT));
+}
+
+unsigned char kbd_read_input(void)
+{
+	return(in8(CFG_ISA_IO_BASE_ADDRESS + KDB_DATA_PORT));
+}
+
+void kbd_write_command(unsigned char cmd)
+{
+	out8(CFG_ISA_IO_BASE_ADDRESS + KDB_COMMAND_PORT,cmd);
+}
+
+void kbd_write_output(unsigned char data)
+{
+	out8(CFG_ISA_IO_BASE_ADDRESS + KDB_DATA_PORT, data);
+}
+
+int kbd_read_data(void)
+{
+	int val;
+	unsigned char status;
+
+	val=-1;
+	status = kbd_read_status();
+	if (status & KBD_STAT_OBF) {
+		val = kbd_read_input();
+		if (status & (KBD_STAT_GTO | KBD_STAT_PERR))
+			val = -2;
+	}
+	return val;
+}
+
+int kbd_wait_for_input(void)
+{
+	unsigned long timeout;
+	int val;
+
+	timeout = KBD_TIMEOUT;
+	val=kbd_read_data();
+	while(val < 0)
+	{
+		if(timeout--==0)
+			return -1;
+		udelay(1000);
+		val=kbd_read_data();
+	}
+	return val;
+}
+
+
+int kb_wait(void)
+{
+	unsigned long timeout = KBC_TIMEOUT * 10;
+
+	do {
+		unsigned char status = handle_kbd_event();
+		if (!(status & KBD_STAT_IBF))
+			return 0; /* ok */
+		udelay(1000);
+		timeout--;
+	} while (timeout);
+	return 1;
+}
+
+void kbd_write_command_w(int data)
+{
+	if(kb_wait())
+		PRINTF("timeout in kbd_write_command_w\n");
+	kbd_write_command(data);
+}
+
+void kbd_write_output_w(int data)
+{
+	if(kb_wait())
+		PRINTF("timeout in kbd_write_output_w\n");
+	kbd_write_output(data);
+}
+
+void kbd_send_data(unsigned char data)
+{
+	unsigned char status;
+	disable_8259A_irq(1); /* disable interrupt */
+	kbd_write_output_w(data);
+	status = kbd_wait_for_input();
+	if (status == KBD_REPLY_ACK)
+		enable_8259A_irq(1); /* enable interrupt */
+}
+
+
+char * kbd_initialize(void)
+{
+	int status;
+
+	in_pointer = 0; /* delete in Buffer */
+	out_pointer = 0;
+	/*
+	 * Test the keyboard interface.
+	 * This seems to be the only way to get it going.
+	 * If the test is successful a x55 is placed in the input buffer.
+	 */
+	kbd_write_command_w(KBD_CCMD_SELF_TEST);
+	if (kbd_wait_for_input() != 0x55)
+		return "Kbd:   failed self test";
+	/*
+	 * Perform a keyboard interface test.  This causes the controller
+	 * to test the keyboard clock and data lines.  The results of the
+	 * test are placed in the input buffer.
+	 */
+	kbd_write_command_w(KBD_CCMD_KBD_TEST);
+	if (kbd_wait_for_input() != 0x00)
+		return "Kbd:   interface failed self test";
+	/*
+	 * Enable the keyboard by allowing the keyboard clock to run.
+	 */
+	kbd_write_command_w(KBD_CCMD_KBD_ENABLE);
+	status = kbd_wait_for_input();
+	/*
+	 * Reset keyboard. If the read times out
+	 * then the assumption is that no keyboard is
+	 * plugged into the machine.
+	 * This defaults the keyboard to scan-code set 2.
+	 *
+	 * Set up to try again if the keyboard asks for RESEND.
+	 */
+	do {
+		kbd_write_output_w(KBD_CMD_RESET);
+		status = kbd_wait_for_input();
+		if (status == KBD_REPLY_ACK)
+			break;
+		if (status != KBD_REPLY_RESEND)
+		{
+			PRINTF("status: %X\n",status);
+			return "Kbd:   reset failed, no ACK";
+		}
+	} while (1);
+	if (kbd_wait_for_input() != KBD_REPLY_POR)
+		return "Kbd:   reset failed, no POR";
+
+	/*
+	 * Set keyboard controller mode. During this, the keyboard should be
+	 * in the disabled state.
+	 *
+	 * Set up to try again if the keyboard asks for RESEND.
+	 */
+	do {
+		kbd_write_output_w(KBD_CMD_DISABLE);
+		status = kbd_wait_for_input();
+		if (status == KBD_REPLY_ACK)
+			break;
+		if (status != KBD_REPLY_RESEND)
+			return "Kbd:   disable keyboard: no ACK";
+	} while (1);
+
+	kbd_write_command_w(KBD_CCMD_WRITE_MODE);
+	kbd_write_output_w(KBD_MODE_KBD_INT
+			      | KBD_MODE_SYS
+			      | KBD_MODE_DISABLE_MOUSE
+			      | KBD_MODE_KCC);
+
+	/* ibm powerpc portables need this to use scan-code set 1 -- Cort */
+	kbd_write_command_w(KBD_CCMD_READ_MODE);
+	if (!(kbd_wait_for_input() & KBD_MODE_KCC)) {
+		/*
+		 * If the controller does not support conversion,
+		 * Set the keyboard to scan-code set 1.
+		 */
+		kbd_write_output_w(0xF0);
+		kbd_wait_for_input();
+		kbd_write_output_w(0x01);
+		kbd_wait_for_input();
+	}
+	kbd_write_output_w(KBD_CMD_ENABLE);
+	if (kbd_wait_for_input() != KBD_REPLY_ACK)
+		return "Kbd:   enable keyboard: no ACK";
+
+	/*
+	 * Finally, set the typematic rate to maximum.
+	 */
+	kbd_write_output_w(KBD_CMD_SET_RATE);
+	if (kbd_wait_for_input() != KBD_REPLY_ACK)
+		return "Kbd:   Set rate: no ACK";
+	kbd_write_output_w(0x00);
+	if (kbd_wait_for_input() != KBD_REPLY_ACK)
+		return "Kbd:   Set rate: no ACK";
+	return NULL;
+}
+
+void kbd_interrupt(void)
+{
+	handle_kbd_event();
+}
+
+
+
+/* eof */
+
diff --git a/board/mpl/common/usb_uhci.c b/board/mpl/common/usb_uhci.c
new file mode 100644
index 0000000..83624a9
--- /dev/null
+++ b/board/mpl/common/usb_uhci.c
@@ -0,0 +1,1152 @@
+/*
+ * (C) Copyright 2001
+ * Denis Peter, MPL AG Switzerland
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ *
+ * Note: Part of this code has been derived from linux
+ *
+ */
+
+/**********************************************************************
+ * How it works:
+ * -------------
+ * The framelist / Transfer descriptor / Queue Heads are similar like
+ * in the linux usb_uhci.c.
+ *
+ * During initialization, the following skeleton is allocated in init_skel:
+ *
+ *         framespecific           |           common chain
+ *
+ * framelist[]
+ * [  0 ]-----> TD ---------\
+ * [  1 ]-----> TD ----------> TD ------> QH -------> QH -------> QH ---> NULL
+ *   ...        TD ---------/
+ * [1023]-----> TD --------/
+ *
+ *              ^^             ^^         ^^          ^^          ^^
+ *              7 TDs for      1 TD for   Start of    Start of    End Chain
+ *              INT (2-128ms)  1ms-INT    CTRL Chain  BULK Chain
+ *
+ *
+ * Since this is a bootloader, the isochronous transfer descriptor have been removed.
+ *
+ * Interrupt Transfers.
+ * --------------------
+ * For Interupt transfers USB_MAX_TEMP_INT_TD Transfer descriptor are available. They
+ * will be inserted after the appropriate (depending the interval setting) skeleton TD.
+ * If an interrupt has been detected the dev->irqhandler is called. The status and number
+ * of transfered bytes is stored in dev->irq_status resp. dev->irq_act_len. If the
+ * dev->irqhandler returns 0, the interrupt TD is removed and disabled. If an 1 is returned,
+ * the interrupt TD will be reactivated.
+ *
+ * Control Transfers
+ * -----------------
+ * Control Transfers are issued by filling the tmp_td with the appropriate data and connect
+ * them to the qh_cntrl queue header. Before other control/bulk transfers can be issued,
+ * the programm has to wait for completion. This does not allows asynchronous data transfer.
+ *
+ * Bulk Transfers
+ * --------------
+ * Bulk Transfers are issued by filling the tmp_td with the appropriate data and connect
+ * them to the qh_bulk queue header. Before other control/bulk transfers can be issued,
+ * the programm has to wait for completion. This does not allows asynchronous data transfer.
+ *
+ *
+ */
+
+#include <common.h>
+#include <pci.h>
+
+#ifdef CONFIG_USB_UHCI
+
+#include <usb.h>
+#include "usb_uhci.h"
+
+#define USB_MAX_TEMP_TD      128  /* number of temporary TDs for bulk and control transfers */
+#define USB_MAX_TEMP_INT_TD  32   /* number of temporary TDs for Interrupt transfers */
+
+
+#undef USB_UHCI_DEBUG
+
+#ifdef	USB_UHCI_DEBUG
+#define	USB_UHCI_PRINTF(fmt,args...)	printf (fmt ,##args)
+#else
+#define USB_UHCI_PRINTF(fmt,args...)
+#endif
+
+
+static int irqvec = -1;            /* irq vector, if -1 uhci is stopped / reseted */
+unsigned int usb_base_addr;       /* base address */
+
+static uhci_td_t td_int[8];        /* Interrupt Transfer descriptors */
+static uhci_qh_t qh_cntrl;         /* control Queue Head */
+static uhci_qh_t qh_bulk;          /*  bulk Queue Head */
+static uhci_qh_t qh_end;           /* end Queue Head */
+static uhci_td_t td_last;          /* last TD (linked with end chain) */
+
+/* temporary tds */
+static uhci_td_t tmp_td[USB_MAX_TEMP_TD];          /* temporary bulk/control td's  */
+static uhci_td_t tmp_int_td[USB_MAX_TEMP_INT_TD];  /* temporary interrupt td's  */
+
+static unsigned long framelist[1024] __attribute__ ((aligned (0x1000))); /* frame list */
+
+static struct virt_root_hub rh;   /* struct for root hub */
+
+/**********************************************************************
+ * some forward decleration
+ */
+int uhci_submit_rh_msg(struct usb_device *dev, unsigned long pipe,
+						void *buffer, int transfer_len,struct devrequest *setup);
+
+/* fill a td with the approproiate data. Link, status, info and buffer
+ * are used by the USB controller itselfes, dev is used to identify the
+ * "connected" device
+ */
+void usb_fill_td(uhci_td_t* td,unsigned long link,unsigned long status,
+					unsigned long info, unsigned long buffer, unsigned long dev)
+{
+	td->link=swap_32(link);
+	td->status=swap_32(status);
+	td->info=swap_32(info);
+	td->buffer=swap_32(buffer);
+	td->dev_ptr=dev;
+}
+
+/* fill a qh with the approproiate data. Head and element are used by the USB controller
+ * itselfes. As soon as a valid dev_ptr is filled, a td chain is connected to the qh.
+ * Please note, that after completion of the td chain, the entry element is removed /
+ * marked invalid by the USB controller.
+ */
+void usb_fill_qh(uhci_qh_t* qh,unsigned long head,unsigned long element)
+{
+	qh->head=swap_32(head);
+	qh->element=swap_32(element);
+	qh->dev_ptr=0L;
+}
+
+/* get the status of a td->status
+ */
+unsigned long usb_uhci_td_stat(unsigned long status)
+{
+	unsigned long result=0;
+	result |= (status & TD_CTRL_NAK)      ? USB_ST_NAK_REC : 0;
+	result |= (status & TD_CTRL_STALLED)  ? USB_ST_STALLED : 0;
+	result |= (status & TD_CTRL_DBUFERR)  ? USB_ST_BUF_ERR : 0;
+	result |= (status & TD_CTRL_BABBLE)   ? USB_ST_BABBLE_DET : 0;
+	result |= (status & TD_CTRL_CRCTIMEO) ? USB_ST_CRC_ERR : 0;
+	result |= (status & TD_CTRL_BITSTUFF) ? USB_ST_BIT_ERR : 0;
+	result |= (status & TD_CTRL_ACTIVE)   ? USB_ST_NOT_PROC : 0;
+	return result;
+}
+
+/* get the status and the transfered len of a td chain.
+ * called from the completion handler
+ */
+int usb_get_td_status(uhci_td_t *td,struct usb_device *dev)
+{
+	unsigned long temp,info;
+	unsigned long stat;
+	uhci_td_t *mytd=td;
+
+	if(dev->devnum==rh.devnum)
+		return 0;
+	dev->act_len=0;
+	stat=0;
+	do {
+		temp=swap_32((unsigned long)mytd->status);
+		stat=usb_uhci_td_stat(temp);
+		info=swap_32((unsigned long)mytd->info);
+		if(((info & 0xff)!= USB_PID_SETUP) &&
+				(((info >> 21) & 0x7ff)!= 0x7ff) &&
+				(temp & 0x7FF)!=0x7ff)
+		{  /* if not setup and not null data pack */
+			dev->act_len+=(temp & 0x7FF) + 1; /* the transfered len is act_len + 1 */
+		}
+		if(stat) {           /* status no ok */
+			dev->status=stat;
+			return -1;
+		}
+		temp=swap_32((unsigned long)mytd->link);
+		mytd=(uhci_td_t *)(temp & 0xfffffff0);
+	}while((temp & 0x1)==0); /* process all TDs */
+	dev->status=stat;
+	return 0; /* Ok */
+}
+
+
+/*-------------------------------------------------------------------
+ *                         LOW LEVEL STUFF
+ *          assembles QHs und TDs for control, bulk and iso
+ *-------------------------------------------------------------------*/
+
+/* Submits a control message. That is a Setup, Data and Status transfer.
+ * Routine does not wait for completion.
+ */
+int submit_control_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
+										int transfer_len,struct devrequest *setup)
+{
+	unsigned long destination, status;
+	int maxsze = usb_maxpacket(dev, pipe);
+	unsigned long dataptr;
+	int len;
+	int pktsze;
+	int i=0;
+
+	if (!maxsze) {
+		USB_UHCI_PRINTF("uhci_submit_control_urb: pipesize for pipe %lx is zero\n", pipe);
+		return -1;
+	}
+	if(((pipe>>8)&0x7f)==rh.devnum) {
+		/* this is the root hub -> redirect it */
+		return uhci_submit_rh_msg(dev,pipe,buffer,transfer_len,setup);
+	}
+	USB_UHCI_PRINTF("uhci_submit_control start len %x, maxsize %x\n",transfer_len,maxsze);
+	/* The "pipe" thing contains the destination in bits 8--18 */
+	destination = (pipe & PIPE_DEVEP_MASK) | USB_PID_SETUP; /* Setup stage */
+	/* 3 errors */
+	status = (pipe & TD_CTRL_LS) | TD_CTRL_ACTIVE | (3 << 27);
+	/* (urb->transfer_flags & USB_DISABLE_SPD ? 0 : TD_CTRL_SPD); */
+	/*  Build the TD for the control request, try forever, 8 bytes of data */
+	usb_fill_td(&tmp_td[i],UHCI_PTR_TERM ,status, destination | (7 << 21),(unsigned long)setup,(unsigned long)dev);
+#if 0
+	{
+		char *sp=(char *)setup;
+		printf("SETUP to pipe %lx: %x %x %x %x %x %x %x %x\n", pipe,
+		    sp[0],sp[1],sp[2],sp[3],sp[4],sp[5],sp[6],sp[7]);
+	}
+#endif
+	dataptr = (unsigned long)buffer;
+	len=transfer_len;
+
+	/* If direction is "send", change the frame from SETUP (0x2D)
+	   to OUT (0xE1). Else change it from SETUP to IN (0x69). */
+	destination = (pipe & PIPE_DEVEP_MASK) | ((pipe & USB_DIR_IN)==0 ? USB_PID_OUT : USB_PID_IN);
+	while (len > 0) {
+		/* data stage */
+		pktsze = len;
+		i++;
+		if (pktsze > maxsze)
+			pktsze = maxsze;
+		destination ^= 1 << TD_TOKEN_TOGGLE;	/* toggle DATA0/1 */
+		usb_fill_td(&tmp_td[i],UHCI_PTR_TERM, status, destination | ((pktsze - 1) << 21),dataptr,(unsigned long)dev);	/* Status, pktsze bytes of data */
+		tmp_td[i-1].link=swap_32((unsigned long)&tmp_td[i]);
+
+		dataptr += pktsze;
+		len -= pktsze;
+	}
+
+	/*  Build the final TD for control status */
+	/* It's only IN if the pipe is out AND we aren't expecting data */
+
+	destination &= ~UHCI_PID;
+	if (((pipe & USB_DIR_IN)==0) || (transfer_len == 0))
+		destination |= USB_PID_IN;
+	else
+		destination |= USB_PID_OUT;
+	destination |= 1 << TD_TOKEN_TOGGLE;	/* End in Data1 */
+	i++;
+	status &=~TD_CTRL_SPD;
+	/* no limit on errors on final packet , 0 bytes of data */
+	usb_fill_td(&tmp_td[i],UHCI_PTR_TERM, status | TD_CTRL_IOC, destination | (UHCI_NULL_DATA_SIZE << 21),0,(unsigned long)dev);
+	tmp_td[i-1].link=swap_32((unsigned long)&tmp_td[i]);	/* queue status td */
+	/*	usb_show_td(i+1);*/
+	USB_UHCI_PRINTF("uhci_submit_control end (%d tmp_tds used)\n",i);
+	/* first mark the control QH element terminated */
+	qh_cntrl.element=0xffffffffL;
+	/* set qh active */
+	qh_cntrl.dev_ptr=(unsigned long)dev;
+	/* fill in tmp_td_chain */
+	qh_cntrl.element=swap_32((unsigned long)&tmp_td[0]);
+	return 0;
+}
+
+/*-------------------------------------------------------------------
+ * Prepare TDs for bulk transfers.
+ */
+int submit_bulk_msg(struct usb_device *dev, unsigned long pipe, void *buffer,int transfer_len)
+{
+	unsigned long destination, status,info;
+	unsigned long dataptr;
+	int maxsze = usb_maxpacket(dev, pipe);
+	int len;
+	int i=0;
+
+	if(transfer_len < 0) {
+		printf("Negative transfer length in submit_bulk\n");
+		return -1;
+	}
+	if (!maxsze)
+		return -1;
+	/* The "pipe" thing contains the destination in bits 8--18. */
+	destination = (pipe & PIPE_DEVEP_MASK) | usb_packetid (pipe);
+	/* 3 errors */
+	status = (pipe & TD_CTRL_LS) | TD_CTRL_ACTIVE | (3 << 27);
+	/*	((urb->transfer_flags & USB_DISABLE_SPD) ? 0 : TD_CTRL_SPD) | (3 << 27); */
+	/* Build the TDs for the bulk request */
+	len = transfer_len;
+	dataptr = (unsigned long)buffer;
+	do {
+		int pktsze = len;
+		if (pktsze > maxsze)
+			pktsze = maxsze;
+		/* pktsze bytes of data  */
+		info = destination | (((pktsze - 1)&UHCI_NULL_DATA_SIZE) << 21) |
+			(usb_gettoggle (dev, usb_pipeendpoint (pipe), usb_pipeout (pipe)) << TD_TOKEN_TOGGLE);
+
+		if((len-pktsze)==0)
+			status |= TD_CTRL_IOC;	/* last one generates INT */
+
+		usb_fill_td(&tmp_td[i],UHCI_PTR_TERM, status, info,dataptr,(unsigned long)dev);	/* Status, pktsze bytes of data */
+		if(i>0)
+			tmp_td[i-1].link=swap_32((unsigned long)&tmp_td[i]);
+		i++;
+		dataptr += pktsze;
+		len -= pktsze;
+		usb_dotoggle (dev, usb_pipeendpoint (pipe), usb_pipeout (pipe));
+	} while (len > 0);
+	/* first mark the bulk QH element terminated */
+	qh_bulk.element=0xffffffffL;
+	/* set qh active */
+	qh_bulk.dev_ptr=(unsigned long)dev;
+	/* fill in tmp_td_chain */
+	qh_bulk.element=swap_32((unsigned long)&tmp_td[0]);
+	return 0;
+}
+
+
+/* search a free interrupt td
+ */
+uhci_td_t *uhci_alloc_int_td(void)
+{
+	int i;
+	for(i=0;i<USB_MAX_TEMP_INT_TD;i++) {
+		if(tmp_int_td[i].dev_ptr==0) /* no device assigned -> free TD */
+			return &tmp_int_td[i];
+	}
+	return NULL;
+}
+
+#if 0
+void uhci_show_temp_int_td(void)
+{
+	int i;
+	for(i=0;i<USB_MAX_TEMP_INT_TD;i++) {
+		if((tmp_int_td[i].dev_ptr&0x01)!=0x1L) /* no device assigned -> free TD */
+			printf("temp_td %d is assigned to dev %lx\n",i,tmp_int_td[i].dev_ptr);
+	}
+	printf("all others temp_tds are free\n");
+}
+#endif
+/*-------------------------------------------------------------------
+ * submits USB interrupt (ie. polling ;-)
+ */
+int submit_int_msg(struct usb_device *dev, unsigned long pipe, void *buffer,int transfer_len, int interval)
+{
+	int nint, n;
+	unsigned long status, destination;
+	unsigned long info,tmp;
+	uhci_td_t *mytd;
+	if (interval < 0 || interval >= 256)
+		return -1;
+
+	if (interval == 0)
+		nint = 0;
+	else {
+		for (nint = 0, n = 1; nint <= 8; nint++, n += n)	/* round interval down to 2^n */
+		 {
+			if(interval < n) {
+				interval = n / 2;
+				break;
+			}
+		}
+		nint--;
+	}
+
+	USB_UHCI_PRINTF("Rounded interval to %i, chain  %i\n", interval, nint);
+	mytd=uhci_alloc_int_td();
+	if(mytd==NULL) {
+		printf("No free INT TDs found\n");
+		return -1;
+	}
+	status = (pipe & TD_CTRL_LS) | TD_CTRL_ACTIVE | TD_CTRL_IOC | (3 << 27);
+/*		(urb->transfer_flags & USB_DISABLE_SPD ? 0 : TD_CTRL_SPD) | (3 << 27);
+*/
+
+	destination =(pipe & PIPE_DEVEP_MASK) | usb_packetid (pipe) | (((transfer_len - 1) & 0x7ff) << 21);
+
+	info = destination | (usb_gettoggle(dev, usb_pipeendpoint(pipe), usb_pipeout(pipe)) << TD_TOKEN_TOGGLE);
+	tmp = swap_32(td_int[nint].link);
+	usb_fill_td(mytd,tmp,status, info,(unsigned long)buffer,(unsigned long)dev);
+	/* Link it */
+	tmp = swap_32((unsigned long)mytd);
+	td_int[nint].link=tmp;
+
+	usb_dotoggle (dev, usb_pipeendpoint (pipe), usb_pipeout (pipe));
+
+	return 0;
+}
+
+/**********************************************************************
+ * Low Level functions
+ */
+
+
+void reset_hc(void)
+{
+
+	/* Global reset for 100ms */
+	out16r( usb_base_addr + USBPORTSC1,0x0204);
+	out16r( usb_base_addr + USBPORTSC2,0x0204);
+	out16r( usb_base_addr + USBCMD,USBCMD_GRESET | USBCMD_RS);
+	/* Turn off all interrupts */
+	out16r(usb_base_addr + USBINTR,0);
+	wait_ms(50);
+	out16r( usb_base_addr + USBCMD,0);
+	wait_ms(10);
+}
+
+void start_hc(void)
+{
+	int timeout = 1000;
+
+	while(in16r(usb_base_addr + USBCMD) & USBCMD_HCRESET) {
+		if (!--timeout) {
+			printf("USBCMD_HCRESET timed out!\n");
+			break;
+		}
+	}
+	/* Turn on all interrupts */
+	out16r(usb_base_addr + USBINTR,USBINTR_TIMEOUT | USBINTR_RESUME | USBINTR_IOC | USBINTR_SP);
+	/* Start at frame 0 */
+	out16r(usb_base_addr + USBFRNUM,0);
+	/* set Framebuffer base address */
+	out32r(usb_base_addr+USBFLBASEADD,(unsigned long)&framelist);
+	/* Run and mark it configured with a 64-byte max packet */
+	out16r(usb_base_addr + USBCMD,USBCMD_RS | USBCMD_CF | USBCMD_MAXP);
+}
+
+/* Initialize the skeleton
+ */
+void usb_init_skel(void)
+{
+	unsigned long temp;
+	int n;
+
+	for(n=0;n<USB_MAX_TEMP_INT_TD;n++)
+		tmp_int_td[n].dev_ptr=0L; /* no devices connected */
+	/* last td */
+	usb_fill_td(&td_last,UHCI_PTR_TERM,TD_CTRL_IOC ,0,0,0L);
+  /* usb_fill_td(&td_last,UHCI_PTR_TERM,0,0,0); */
+	/* End Queue Header */
+	usb_fill_qh(&qh_end,UHCI_PTR_TERM,(unsigned long)&td_last);
+	/* Bulk Queue Header */
+	temp=(unsigned long)&qh_end;
+	usb_fill_qh(&qh_bulk,temp | UHCI_PTR_QH,UHCI_PTR_TERM);
+	/* Control Queue Header */
+	temp=(unsigned long)&qh_bulk;
+	usb_fill_qh(&qh_cntrl, temp | UHCI_PTR_QH,UHCI_PTR_TERM);
+	/* 1ms Interrupt td */
+	temp=(unsigned long)&qh_cntrl;
+	usb_fill_td(&td_int[0],temp | UHCI_PTR_QH,0,0,0,0L);
+	temp=(unsigned long)&td_int[0];
+	for(n=1; n<8; n++)
+		usb_fill_td(&td_int[n],temp,0,0,0,0L);
+	for (n = 0; n < 1024; n++) {
+	/* link all framelist pointers to one of the interrupts */
+		int m, o;
+		if ((n&127)==127)
+			framelist[n]= swap_32((unsigned long)&td_int[0]);
+		else
+			for (o = 1, m = 2; m <= 128; o++, m += m)
+				if ((n & (m - 1)) == ((m - 1) / 2))
+						framelist[n]= swap_32((unsigned long)&td_int[o]);
+	}
+}
+
+/* check the common skeleton for completed transfers, and update the status
+ * of the "connected" device. Called from the IRQ routine.
+ */
+void usb_check_skel(void)
+{
+	struct usb_device *dev;
+	/* start with the control qh */
+	if(qh_cntrl.dev_ptr!=0) /* it's a device assigned check if this caused IRQ */
+	{
+		dev=(struct usb_device *)qh_cntrl.dev_ptr;
+		usb_get_td_status(&tmp_td[0],dev); /* update status */
+		if(!(dev->status & USB_ST_NOT_PROC)) { /* is not active anymore, disconnect devices */
+			qh_cntrl.dev_ptr=0;
+		}
+	}
+	/* now process the bulk */
+	if(qh_bulk.dev_ptr!=0) /* it's a device assigned check if this caused IRQ */
+	{
+		dev=(struct usb_device *)qh_bulk.dev_ptr;
+		usb_get_td_status(&tmp_td[0],dev); /* update status */
+		if(!(dev->status & USB_ST_NOT_PROC)) { /* is not active anymore, disconnect devices */
+			qh_bulk.dev_ptr=0;
+		}
+	}
+}
+
+/* check the interrupt chain, ubdate the status of the appropriate device,
+ * call the appropriate irqhandler and reactivate the TD if the irqhandler
+ * returns with 1
+ */
+void usb_check_int_chain(void)
+{
+	int i,res;
+	unsigned long link,status;
+	struct usb_device *dev;
+	uhci_td_t *td,*prevtd;
+
+	for(i=0;i<8;i++) {
+		prevtd=&td_int[i]; /* the first previous td is the skeleton td */
+		link=swap_32(td_int[i].link) & 0xfffffff0; /* next in chain */
+		td=(uhci_td_t *)link; /* assign it */
+		/* all interrupt TDs are finally linked to the td_int[0].
+ 		 * so we process all until we find the td_int[0].
+		 * if int0 chain points to a QH, we're also done
+	   */
+		while(((i>0) && (link != (unsigned long)&td_int[0])) ||
+					((i==0) && !(swap_32(td->link) &  UHCI_PTR_QH)))
+		{
+			/* check if a device is assigned with this td */
+			status=swap_32(td->status);
+			if((td->dev_ptr!=0L) && !(status & TD_CTRL_ACTIVE)) {
+				/* td is not active and a device is assigned -> call irqhandler */
+				dev=(struct usb_device *)td->dev_ptr;
+				dev->irq_act_len=((status & 0x7FF)==0x7FF) ? 0 : (status & 0x7FF) + 1; /* transfered length */
+				dev->irq_status=usb_uhci_td_stat(status); /* get status */
+				res=dev->irq_handle(dev); /* call irqhandler */
+				if(res==1) {
+					/* reactivate */
+					status|=TD_CTRL_ACTIVE;
+					td->status=swap_32(status);
+					prevtd=td; /* previous td = this td */
+				}
+				else {
+					prevtd->link=td->link; /* link previous td directly to the nex td -> unlinked */
+					/* remove device pointer */
+					td->dev_ptr=0L;
+				}
+			} /* if we call the irq handler */
+			link=swap_32(td->link) & 0xfffffff0; /* next in chain */
+			td=(uhci_td_t *)link; /* assign it */
+		} /* process all td in this int chain */
+	} /* next interrupt chain */
+}
+
+
+/* usb interrupt service routine.
+ */
+void handle_usb_interrupt(void)
+{
+	unsigned short status;
+
+	/*
+	 * Read the interrupt status, and write it back to clear the
+	 * interrupt cause
+	 */
+
+	status = in16r(usb_base_addr + USBSTS);
+
+	if (!status)		/* shared interrupt, not mine */
+		return;
+	if (status != 1) {
+		/* remove host controller halted state */
+		if ((status&0x20) && ((in16r(usb_base_addr+USBCMD) && USBCMD_RS)==0)) {
+			out16r(usb_base_addr + USBCMD, USBCMD_RS | in16r(usb_base_addr + USBCMD));
+		}
+	}
+	usb_check_int_chain(); /* call interrupt handlers for int tds */
+	usb_check_skel(); /* call completion handler for common transfer routines */
+	out16r(usb_base_addr+USBSTS,status);
+}
+
+
+/* init uhci
+ */
+int usb_lowlevel_init(void)
+{
+	unsigned char temp;
+	int	busdevfunc;
+
+	busdevfunc=pci_find_device(USB_UHCI_VEND_ID,USB_UHCI_DEV_ID,0); /* get PCI Device ID */
+	if(busdevfunc==-1) {
+		printf("Error USB UHCI (%04X,%04X) not found\n",USB_UHCI_VEND_ID,USB_UHCI_DEV_ID);
+		return -1;
+	}
+	pci_read_config_byte(busdevfunc,PCI_INTERRUPT_LINE,&temp);
+	irqvec = temp;
+	irq_free_handler(irqvec);
+	USB_UHCI_PRINTF("Interrupt Line = %d, is %d\n",irqvec);
+	pci_read_config_byte(busdevfunc,PCI_INTERRUPT_PIN,&temp);
+	USB_UHCI_PRINTF("Interrupt Pin = %ld\n",temp);
+	pci_read_config_dword(busdevfunc,PCI_BASE_ADDRESS_4,&usb_base_addr);
+	USB_UHCI_PRINTF("IO Base Address = 0x%lx\n",usb_base_addr);
+	usb_base_addr&=0xFFFFFFF0;
+	usb_base_addr+=CFG_ISA_IO_BASE_ADDRESS;
+	rh.devnum = 0;
+	usb_init_skel();
+	reset_hc();
+	start_hc();
+	irq_install_handler(irqvec, (interrupt_handler_t *)handle_usb_interrupt, NULL);
+	return 0;
+}
+
+/* stop uhci
+ */
+int usb_lowlevel_stop(void)
+{
+	if(irqvec==-1)
+		return 1;
+	irq_free_handler(irqvec);
+	reset_hc();
+	irqvec=-1;
+	return 0;
+}
+
+/*******************************************************************************************
+ * Virtual Root Hub
+ * Since the uhci does not have a real HUB, we simulate one ;-)
+ */
+#undef	USB_RH_DEBUG
+
+#ifdef	USB_RH_DEBUG
+#define	USB_RH_PRINTF(fmt,args...)	printf (fmt ,##args)
+static void usb_display_wValue(unsigned short wValue,unsigned short wIndex);
+static void usb_display_Req(unsigned short req);
+#else
+#define USB_RH_PRINTF(fmt,args...)
+static void usb_display_wValue(unsigned short wValue,unsigned short wIndex) {}
+static void usb_display_Req(unsigned short req) {}
+#endif
+
+static unsigned char root_hub_dev_des[] =
+{
+	0x12,			/*  __u8  bLength; */
+	0x01,			/*  __u8  bDescriptorType; Device */
+	0x00,			/*  __u16 bcdUSB; v1.0 */
+	0x01,
+	0x09,			/*  __u8  bDeviceClass; HUB_CLASSCODE */
+	0x00,			/*  __u8  bDeviceSubClass; */
+	0x00,			/*  __u8  bDeviceProtocol; */
+	0x08,			/*  __u8  bMaxPacketSize0; 8 Bytes */
+	0x00,			/*  __u16 idVendor; */
+	0x00,
+	0x00,			/*  __u16 idProduct; */
+	0x00,
+	0x00,			/*  __u16 bcdDevice; */
+	0x00,
+	0x01,			/*  __u8  iManufacturer; */
+	0x00,			/*  __u8  iProduct; */
+	0x00,			/*  __u8  iSerialNumber; */
+	0x01			/*  __u8  bNumConfigurations; */
+};
+
+
+/* Configuration descriptor */
+static unsigned char root_hub_config_des[] =
+{
+	0x09,			/*  __u8  bLength; */
+	0x02,			/*  __u8  bDescriptorType; Configuration */
+	0x19,			/*  __u16 wTotalLength; */
+	0x00,
+	0x01,			/*  __u8  bNumInterfaces; */
+	0x01,			/*  __u8  bConfigurationValue; */
+	0x00,			/*  __u8  iConfiguration; */
+	0x40,			/*  __u8  bmAttributes;
+				   Bit 7: Bus-powered, 6: Self-powered, 5 Remote-wakwup, 4..0: resvd */
+	0x00,			/*  __u8  MaxPower; */
+
+     /* interface */
+	0x09,			/*  __u8  if_bLength; */
+	0x04,			/*  __u8  if_bDescriptorType; Interface */
+	0x00,			/*  __u8  if_bInterfaceNumber; */
+	0x00,			/*  __u8  if_bAlternateSetting; */
+	0x01,			/*  __u8  if_bNumEndpoints; */
+	0x09,			/*  __u8  if_bInterfaceClass; HUB_CLASSCODE */
+	0x00,			/*  __u8  if_bInterfaceSubClass; */
+	0x00,			/*  __u8  if_bInterfaceProtocol; */
+	0x00,			/*  __u8  if_iInterface; */
+
+     /* endpoint */
+	0x07,			/*  __u8  ep_bLength; */
+	0x05,			/*  __u8  ep_bDescriptorType; Endpoint */
+	0x81,			/*  __u8  ep_bEndpointAddress; IN Endpoint 1 */
+	0x03,			/*  __u8  ep_bmAttributes; Interrupt */
+	0x08,			/*  __u16 ep_wMaxPacketSize; 8 Bytes */
+	0x00,
+	0xff			/*  __u8  ep_bInterval; 255 ms */
+};
+
+
+static unsigned char root_hub_hub_des[] =
+{
+	0x09,			/*  __u8  bLength; */
+	0x29,			/*  __u8  bDescriptorType; Hub-descriptor */
+	0x02,			/*  __u8  bNbrPorts; */
+	0x00,			/* __u16  wHubCharacteristics; */
+	0x00,
+	0x01,			/*  __u8  bPwrOn2pwrGood; 2ms */
+	0x00,			/*  __u8  bHubContrCurrent; 0 mA */
+	0x00,			/*  __u8  DeviceRemovable; *** 7 Ports max *** */
+	0xff			/*  __u8  PortPwrCtrlMask; *** 7 ports max *** */
+};
+
+static unsigned char root_hub_str_index0[] =
+{
+	0x04,			/*  __u8  bLength; */
+	0x03,			/*  __u8  bDescriptorType; String-descriptor */
+	0x09,			/*  __u8  lang ID */
+	0x04,			/*  __u8  lang ID */
+};
+
+static unsigned char root_hub_str_index1[] =
+{
+	28,			/*  __u8  bLength; */
+	0x03,			/*  __u8  bDescriptorType; String-descriptor */
+	'U',			/*  __u8  Unicode */
+	0,				/*  __u8  Unicode */
+	'H',			/*  __u8  Unicode */
+	0,				/*  __u8  Unicode */
+	'C',			/*  __u8  Unicode */
+	0,				/*  __u8  Unicode */
+	'I',			/*  __u8  Unicode */
+	0,				/*  __u8  Unicode */
+	' ',			/*  __u8  Unicode */
+	0,				/*  __u8  Unicode */
+	'R',			/*  __u8  Unicode */
+	0,				/*  __u8  Unicode */
+	'o',			/*  __u8  Unicode */
+	0,				/*  __u8  Unicode */
+	'o',			/*  __u8  Unicode */
+	0,				/*  __u8  Unicode */
+	't',			/*  __u8  Unicode */
+	0,				/*  __u8  Unicode */
+	' ',			/*  __u8  Unicode */
+	0,				/*  __u8  Unicode */
+	'H',			/*  __u8  Unicode */
+	0,				/*  __u8  Unicode */
+	'u',			/*  __u8  Unicode */
+	0,				/*  __u8  Unicode */
+	'b',			/*  __u8  Unicode */
+	0,				/*  __u8  Unicode */
+};
+
+
+/*
+ * Root Hub Control Pipe (interrupt Pipes are not supported)
+ */
+
+
+int uhci_submit_rh_msg(struct usb_device *dev, unsigned long pipe, void *buffer,int transfer_len,struct devrequest *cmd)
+{
+	void *data = buffer;
+	int leni = transfer_len;
+	int len = 0;
+	int status = 0;
+	int stat = 0;
+	int i;
+
+	unsigned short cstatus;
+
+	unsigned short bmRType_bReq;
+	unsigned short wValue;
+	unsigned short wIndex;
+	unsigned short wLength;
+
+	if ((pipe & PIPE_INTERRUPT) == PIPE_INTERRUPT) {
+		printf("Root-Hub submit IRQ: NOT implemented\n");
+#if 0
+		uhci->rh.urb = urb;
+		uhci->rh.send = 1;
+		uhci->rh.interval = urb->interval;
+		rh_init_int_timer (urb);
+#endif
+		return 0;
+	}
+	bmRType_bReq = cmd->requesttype | cmd->request << 8;
+	wValue = swap_16(cmd->value);
+	wIndex = swap_16(cmd->index);
+	wLength = swap_16(cmd->length);
+	usb_display_Req(bmRType_bReq);
+	for (i = 0; i < 8; i++)
+		rh.c_p_r[i] = 0;
+	USB_RH_PRINTF("Root-Hub: adr: %2x cmd(%1x): %02x%02x %04x %04x %04x\n",
+	     dev->devnum, 8, cmd->requesttype,cmd->request, wValue, wIndex, wLength);
+
+	switch (bmRType_bReq) {
+		/* Request Destination:
+		   without flags: Device,
+		   RH_INTERFACE: interface,
+		   RH_ENDPOINT: endpoint,
+		   RH_CLASS means HUB here,
+		   RH_OTHER | RH_CLASS  almost ever means HUB_PORT here
+		 */
+
+	case RH_GET_STATUS:
+		*(unsigned short *) data = swap_16(1);
+		len=2;
+		break;
+	case RH_GET_STATUS | RH_INTERFACE:
+		*(unsigned short *) data = swap_16(0);
+		len=2;
+		break;
+	case RH_GET_STATUS | RH_ENDPOINT:
+		*(unsigned short *) data = swap_16(0);
+		len=2;
+		break;
+	case RH_GET_STATUS | RH_CLASS:
+		*(unsigned long *) data = swap_32(0);
+		len=4;
+		break;	/* hub power ** */
+	case RH_GET_STATUS | RH_OTHER | RH_CLASS:
+
+		status = in16r(usb_base_addr + USBPORTSC1 + 2 * (wIndex - 1));
+		cstatus = ((status & USBPORTSC_CSC) >> (1 - 0)) |
+			((status & USBPORTSC_PEC) >> (3 - 1)) |
+			(rh.c_p_r[wIndex - 1] << (0 + 4));
+		status = (status & USBPORTSC_CCS) |
+			((status & USBPORTSC_PE) >> (2 - 1)) |
+			((status & USBPORTSC_SUSP) >> (12 - 2)) |
+			((status & USBPORTSC_PR) >> (9 - 4)) |
+			(1 << 8) |	/* power on ** */
+			((status & USBPORTSC_LSDA) << (-8 + 9));
+
+		*(unsigned short *) data = swap_16(status);
+		*(unsigned short *) (data + 2) = swap_16(cstatus);
+		len=4;
+		break;
+	case RH_CLEAR_FEATURE | RH_ENDPOINT:
+		switch (wValue) {
+		case (RH_ENDPOINT_STALL):
+			len=0;
+			break;
+		}
+		break;
+
+	case RH_CLEAR_FEATURE | RH_CLASS:
+		switch (wValue) {
+		case (RH_C_HUB_OVER_CURRENT):
+			len=0;	/* hub power over current ** */
+			break;
+		}
+		break;
+
+	case RH_CLEAR_FEATURE | RH_OTHER | RH_CLASS:
+		usb_display_wValue(wValue,wIndex);
+		switch (wValue) {
+		case (RH_PORT_ENABLE):
+			status = in16r(usb_base_addr+USBPORTSC1+2*(wIndex-1));
+			status = (status & 0xfff5) & ~USBPORTSC_PE;
+			out16r(usb_base_addr+USBPORTSC1+2*(wIndex-1),status);
+			len=0;
+			break;
+		case (RH_PORT_SUSPEND):
+			status = in16r(usb_base_addr+USBPORTSC1+2*(wIndex-1));
+			status = (status & 0xfff5) & ~USBPORTSC_SUSP;
+			out16r(usb_base_addr+USBPORTSC1+2*(wIndex-1),status);
+			len=0;
+			break;
+		case (RH_PORT_POWER):
+			len=0;	/* port power ** */
+			break;
+		case (RH_C_PORT_CONNECTION):
+			status = in16r(usb_base_addr+USBPORTSC1+2*(wIndex-1));
+			status = (status & 0xfff5) | USBPORTSC_CSC;
+			out16r(usb_base_addr+USBPORTSC1+2*(wIndex-1),status);
+			len=0;
+			break;
+		case (RH_C_PORT_ENABLE):
+			status = in16r(usb_base_addr+USBPORTSC1+2*(wIndex-1));
+			status = (status & 0xfff5) | USBPORTSC_PEC;
+			out16r(usb_base_addr+USBPORTSC1+2*(wIndex-1),status);
+			len=0;
+			break;
+		case (RH_C_PORT_SUSPEND):
+/*** WR_RH_PORTSTAT(RH_PS_PSSC); */
+			len=0;
+			break;
+		case (RH_C_PORT_OVER_CURRENT):
+			len=0;
+			break;
+		case (RH_C_PORT_RESET):
+			rh.c_p_r[wIndex - 1] = 0;
+			len=0;
+			break;
+		}
+		break;
+	case RH_SET_FEATURE | RH_OTHER | RH_CLASS:
+		usb_display_wValue(wValue,wIndex);
+		switch (wValue) {
+		case (RH_PORT_SUSPEND):
+			status = in16r(usb_base_addr+USBPORTSC1+2*(wIndex-1));
+			status = (status & 0xfff5) | USBPORTSC_SUSP;
+			out16r(usb_base_addr+USBPORTSC1+2*(wIndex-1),status);
+			len=0;
+			break;
+		case (RH_PORT_RESET):
+			status = in16r(usb_base_addr+USBPORTSC1+2*(wIndex-1));
+			status = (status & 0xfff5) | USBPORTSC_PR;
+			out16r(usb_base_addr+USBPORTSC1+2*(wIndex-1),status);
+			wait_ms(10);
+			status = (status & 0xfff5) & ~USBPORTSC_PR;
+			out16r(usb_base_addr+USBPORTSC1+2*(wIndex-1),status);
+			udelay(10);
+			status = (status & 0xfff5) | USBPORTSC_PE;
+			out16r(usb_base_addr+USBPORTSC1+2*(wIndex-1),status);
+			wait_ms(10);
+			status = (status & 0xfff5) | 0xa;
+			out16r(usb_base_addr+USBPORTSC1+2*(wIndex-1),status);
+			len=0;
+			break;
+		case (RH_PORT_POWER):
+			len=0;	/* port power ** */
+			break;
+		case (RH_PORT_ENABLE):
+			status = in16r(usb_base_addr+USBPORTSC1+2*(wIndex-1));
+			status = (status & 0xfff5) | USBPORTSC_PE;
+			out16r(usb_base_addr+USBPORTSC1+2*(wIndex-1),status);
+			len=0;
+			break;
+		}
+		break;
+
+	case RH_SET_ADDRESS:
+		rh.devnum = wValue;
+		len=0;
+		break;
+	case RH_GET_DESCRIPTOR:
+		switch ((wValue & 0xff00) >> 8) {
+		case (0x01):	/* device descriptor */
+			i=sizeof(root_hub_config_des);
+			status=i > wLength ? wLength : i;
+			len = leni > status ? status : leni;
+			memcpy (data, root_hub_dev_des, len);
+			break;
+		case (0x02):	/* configuration descriptor */
+			i=sizeof(root_hub_config_des);
+			status=i > wLength ? wLength : i;
+			len = leni > status ? status : leni;
+			memcpy (data, root_hub_config_des, len);
+			break;
+		case (0x03):	/*string descriptors */
+			if(wValue==0x0300) {
+				i=sizeof(root_hub_str_index0);
+				status = i > wLength ? wLength : i;
+				len = leni > status ? status : leni;
+				memcpy (data, root_hub_str_index0, len);
+				break;
+			}
+			if(wValue==0x0301) {
+				i=sizeof(root_hub_str_index1);
+				status = i > wLength ? wLength : i;
+				len = leni > status ? status : leni;
+				memcpy (data, root_hub_str_index1, len);
+				break;
+			}
+			stat = USB_ST_STALLED;
+		}
+		break;
+
+	case RH_GET_DESCRIPTOR | RH_CLASS:
+		root_hub_hub_des[2] = 2;
+		i=sizeof(root_hub_hub_des);
+		status= i > wLength ? wLength : i;
+		len = leni > status ? status : leni;
+		memcpy (data, root_hub_hub_des, len);
+		break;
+	case RH_GET_CONFIGURATION:
+		*(unsigned char *) data = 0x01;
+		len = 1;
+		break;
+	case RH_SET_CONFIGURATION:
+		len=0;
+		break;
+	default:
+		stat = USB_ST_STALLED;
+	}
+	USB_RH_PRINTF("Root-Hub stat %lx port1: %x port2: %x\n\n",stat,
+	     in16r(usb_base_addr + USBPORTSC1), in16r(usb_base_addr + USBPORTSC2));
+	dev->act_len=len;
+	dev->status=stat;
+	return stat;
+
+}
+
+/********************************************************************************
+ * Some Debug Routines
+ */
+
+#ifdef	USB_RH_DEBUG
+
+static void usb_display_Req(unsigned short req)
+{
+	USB_RH_PRINTF("- Root-Hub Request: ");
+	switch (req) {
+	case RH_GET_STATUS:
+		USB_RH_PRINTF("Get Status ");
+		break;
+	case RH_GET_STATUS | RH_INTERFACE:
+		USB_RH_PRINTF("Get Status Interface ");
+		break;
+	case RH_GET_STATUS | RH_ENDPOINT:
+		USB_RH_PRINTF("Get Status Endpoint ");
+		break;
+	case RH_GET_STATUS | RH_CLASS:
+		USB_RH_PRINTF("Get Status Class");
+		break;	/* hub power ** */
+	case RH_GET_STATUS | RH_OTHER | RH_CLASS:
+		USB_RH_PRINTF("Get Status Class Others");
+		break;
+	case RH_CLEAR_FEATURE | RH_ENDPOINT:
+		USB_RH_PRINTF("Clear Feature Endpoint ");
+		break;
+	case RH_CLEAR_FEATURE | RH_CLASS:
+		USB_RH_PRINTF("Clear Feature Class ");
+		break;
+	case RH_CLEAR_FEATURE | RH_OTHER | RH_CLASS:
+		USB_RH_PRINTF("Clear Feature Other Class ");
+		break;
+	case RH_SET_FEATURE | RH_OTHER | RH_CLASS:
+		USB_RH_PRINTF("Set Feature Other Class ");
+		break;
+	case RH_SET_ADDRESS:
+		USB_RH_PRINTF("Set Address ");
+		break;
+	case RH_GET_DESCRIPTOR:
+		USB_RH_PRINTF("Get Descriptor ");
+		break;
+	case RH_GET_DESCRIPTOR | RH_CLASS:
+		USB_RH_PRINTF("Get Descriptor Class ");
+		break;
+	case RH_GET_CONFIGURATION:
+		USB_RH_PRINTF("Get Configuration ");
+		break;
+	case RH_SET_CONFIGURATION:
+		USB_RH_PRINTF("Get Configuration ");
+		break;
+	default:
+		USB_RH_PRINTF("****UNKNOWN**** 0x%04X ",req);
+	}
+	USB_RH_PRINTF("\n");
+
+}
+
+static void usb_display_wValue(unsigned short wValue,unsigned short wIndex)
+{
+	switch (wValue) {
+		case (RH_PORT_ENABLE):
+			USB_RH_PRINTF("Root-Hub: Enable Port %d\n",wIndex);
+			break;
+		case (RH_PORT_SUSPEND):
+			USB_RH_PRINTF("Root-Hub: Suspend Port %d\n",wIndex);
+			break;
+		case (RH_PORT_POWER):
+			USB_RH_PRINTF("Root-Hub: Port Power %d\n",wIndex);
+			break;
+		case (RH_C_PORT_CONNECTION):
+			USB_RH_PRINTF("Root-Hub: C Port Connection Port %d\n",wIndex);
+			break;
+		case (RH_C_PORT_ENABLE):
+			USB_RH_PRINTF("Root-Hub: C Port Enable Port %d\n",wIndex);
+			break;
+		case (RH_C_PORT_SUSPEND):
+			USB_RH_PRINTF("Root-Hub: C Port Suspend Port %d\n",wIndex);
+			break;
+		case (RH_C_PORT_OVER_CURRENT):
+			USB_RH_PRINTF("Root-Hub: C Port Over Current Port %d\n",wIndex);
+			break;
+		case (RH_C_PORT_RESET):
+			USB_RH_PRINTF("Root-Hub: C Port reset Port %d\n",wIndex);
+			break;
+		default:
+			USB_RH_PRINTF("Root-Hub: unknown %x %x\n",wValue,wIndex);
+			break;
+	}
+}
+
+#endif
+
+
+
+#ifdef	USB_UHCI_DEBUG
+
+static int usb_display_td(uhci_td_t *td)
+{
+	unsigned long tmp;
+	int valid;
+
+	printf("TD at %p:\n",td);
+
+	tmp=swap_32(td->link);
+	printf("Link points to 0x%08lX, %s first, %s, %s\n",tmp&0xfffffff0,
+		((tmp & 0x4)==0x4) ? "Depth" : "Breath",
+		((tmp & 0x2)==0x2) ? "QH" : "TD",
+		((tmp & 0x1)==0x1) ? "invalid" : "valid");
+	valid=((tmp & 0x1)==0x0);
+	tmp=swap_32(td->status);
+	printf("     %s %ld Errors %s %s %s \n     %s %s %s %s %s %s\n     Len 0x%lX\n",
+		(((tmp>>29)&0x1)==0x1) ? "SPD Enable" : "SPD Disable",
+		((tmp>>28)&0x3),
+		(((tmp>>26)&0x1)==0x1) ? "Low Speed" : "Full Speed",
+		(((tmp>>25)&0x1)==0x1) ? "ISO " : "",
+		(((tmp>>24)&0x1)==0x1) ? "IOC " : "",
+		(((tmp>>23)&0x1)==0x1) ? "Active " : "Inactive ",
+		(((tmp>>22)&0x1)==0x1) ? "Stalled" : "",
+		(((tmp>>21)&0x1)==0x1) ? "Data Buffer Error" : "",
+		(((tmp>>20)&0x1)==0x1) ? "Babble" : "",
+		(((tmp>>19)&0x1)==0x1) ? "NAK" : "",
+		(((tmp>>18)&0x1)==0x1) ? "Bitstuff Error" : "",
+		(tmp&0x7ff));
+	tmp=swap_32(td->info);
+	printf("     MaxLen 0x%lX\n",((tmp>>21)&0x7FF));
+	printf("     %s Endpoint 0x%lX Dev Addr 0x%lX PID 0x%lX\n",((tmp>>19)&0x1)==0x1 ? "TOGGLE" : "",
+		((tmp>>15)&0xF),((tmp>>8)&0x7F),tmp&0xFF);
+	tmp=swap_32(td->buffer);
+	printf("     Buffer 0x%08lX\n",tmp);
+	printf("     DEV %08lX\n",td->dev_ptr);
+	return valid;
+}
+
+
+void usb_show_td(int max)
+{
+	int i;
+	if(max>0) {
+		for(i=0;i<max;i++) {
+			usb_display_td(&tmp_td[i]);
+		}
+	}
+	else {
+		i=0;
+		do {
+			printf("tmp_td[%d]\n",i);
+		}while(usb_display_td(&tmp_td[i++]));
+	}
+}
+
+
+#endif
+#endif /* CONFIG_USB_UHCI */
+
+/* EOF */