* Patch by Kurt Stremerch, 03 Sep 2004:

  Add Xilinx Spartan2E family FPGA support

* Patch by Jeff Angielski, 02 Sep 2004:
  Add Added support for H2 revision of the EP8260 board.
  Fixed formatting for some of the EP8260 related source files.

1 files changed, 289 insertions, 274 deletions

diff --git a/board/ep8260/flash.c b/board/ep8260/flash.c
index cdfdcf2664..278d606b32 100644
--- a/board/ep8260/flash.c
+++ b/board/ep8260/flash.c
@@ -42,250 +42,265 @@ flash_info_t flash_info[CFG_MAX_FLASH_BANKS];
  */
 void flash_reset(void)
 {
-  if( flash_info[0].flash_id != FLASH_UNKNOWN ) {
-    V_ULONG( flash_info[0].start[0] ) = 0x00F000F0;
-    V_ULONG( flash_info[0].start[0] + 4 ) = 0x00F000F0;
-  }
+	if( flash_info[0].flash_id != FLASH_UNKNOWN ) {
+		V_ULONG( flash_info[0].start[0] ) = 0x00F000F0;
+		V_ULONG( flash_info[0].start[0] + 4 ) = 0x00F000F0;
+	}
 }
 
 /*-----------------------------------------------------------------------
  */
 ulong flash_get_size( ulong baseaddr, flash_info_t *info )
 {
-  short i;
-  unsigned long flashtest_h, flashtest_l;
-
-  /* Write auto select command sequence and test FLASH answer */
-  V_ULONG(baseaddr + ((ulong)0x0555 << 3)) = 0x00AA00AA;
-  V_ULONG(baseaddr + ((ulong)0x02AA << 3)) = 0x00550055;
-  V_ULONG(baseaddr + ((ulong)0x0555 << 3)) = 0x00900090;
-  V_ULONG(baseaddr + 4 + ((ulong)0x0555 << 3)) = 0x00AA00AA;
-  V_ULONG(baseaddr + 4 + ((ulong)0x02AA << 3)) = 0x00550055;
-  V_ULONG(baseaddr + 4 + ((ulong)0x0555 << 3)) = 0x00900090;
-
-  flashtest_h = V_ULONG(baseaddr);		/* manufacturer ID	   */
-  flashtest_l = V_ULONG(baseaddr + 4);
-
-  if ((int)flashtest_h == AMD_MANUFACT) {
-	info->flash_id = FLASH_MAN_AMD;
-  } else {
-	info->flash_id = FLASH_UNKNOWN;
-	info->sector_count = 0;
-	info->size = 0;
-	return (0);  				/* no or unknown flash	   */
-  }
-
-  flashtest_h = V_ULONG(baseaddr + 8);	        /* device ID		   */
-  flashtest_l = V_ULONG(baseaddr + 12);
-  if (flashtest_h != flashtest_l) {
-    info->flash_id = FLASH_UNKNOWN;
-    return(0);
-  }
-  if (flashtest_h == AMD_ID_DL323B) {
-    info->flash_id += FLASH_AMDL323B;
-    info->sector_count = 71;
-    info->size = 0x01000000;	                /* 4 * 4 MB = 16 MB	*/
-  } else {
-    info->flash_id = FLASH_UNKNOWN;
-    return(0);  			 	/* no or unknown flash	   */
-  }
-
-  /* set up sector start adress table (bottom sector type) */
-  for (i = 0; i < 8; i++) {
-    info->start[i] = baseaddr + (i * 0x00008000);
-  }
-  for (i = 8; i < info->sector_count; i++) {
-    info->start[i] = baseaddr + (i * 0x00040000) - 0x001C0000;
-  }
-
-  /* check for protected sectors */
-  for (i = 0; i < info->sector_count; i++) {
-    /* read sector protection at sector address, (A7 .. A0) = 0x02 */
-    if ((V_ULONG( info->start[i] + 16 ) & 0x00010001) ||
-	(V_ULONG( info->start[i] + 20 ) & 0x00010001)) {
-	info->protect[i] = 1;		/* D0 = 1 if protected */
-    } else {
-	info->protect[i] = 0;
-    }
-  }
-
-  flash_reset();
-  return(info->size);
+	short i;
+	unsigned long flashtest_h, flashtest_l;
+
+	/* Write auto select command sequence and test FLASH answer */
+	V_ULONG(baseaddr + ((ulong)0x0555 << 3)) = 0x00AA00AA;
+	V_ULONG(baseaddr + ((ulong)0x02AA << 3)) = 0x00550055;
+	V_ULONG(baseaddr + ((ulong)0x0555 << 3)) = 0x00900090;
+	V_ULONG(baseaddr + 4 + ((ulong)0x0555 << 3)) = 0x00AA00AA;
+	V_ULONG(baseaddr + 4 + ((ulong)0x02AA << 3)) = 0x00550055;
+	V_ULONG(baseaddr + 4 + ((ulong)0x0555 << 3)) = 0x00900090;
+
+	flashtest_h = V_ULONG(baseaddr);		/* manufacturer ID	   */
+	flashtest_l = V_ULONG(baseaddr + 4);
+
+	if ((int)flashtest_h == AMD_MANUFACT) {
+		info->flash_id = FLASH_MAN_AMD;
+	} else {
+		info->flash_id = FLASH_UNKNOWN;
+		info->sector_count = 0;
+		info->size = 0;
+		return (0);  				/* no or unknown flash	   */
+	}
+
+	flashtest_h = V_ULONG(baseaddr + 8);	        /* device ID		   */
+	flashtest_l = V_ULONG(baseaddr + 12);
+	if (flashtest_h != flashtest_l) {
+		info->flash_id = FLASH_UNKNOWN;
+		return(0);
+	}
+
+	switch((int)flashtest_h) {
+	case AMD_ID_DL323B:
+		info->flash_id += FLASH_AMDL323B;
+		info->sector_count = 71;
+		info->size = 0x01000000;	 /* 4 * 4 MB = 16 MB	*/
+		break;
+	case AMD_ID_LV640U:	/* AMDLV640 and AMDLV641 have same ID */
+		info->flash_id += FLASH_AMLV640U;
+		info->sector_count = 128;
+		info->size = 0x02000000; 	/* 4 * 8 MB = 32 MB	*/
+		break;
+	default:
+		info->flash_id = FLASH_UNKNOWN;
+		return(0);  			 	/* no or unknown flash	   */
+	}
+
+	if(flashtest_h == AMD_ID_LV640U) {
+		/* set up sector start adress table (uniform sector type) */
+		for (i = 0; i < info->sector_count; i++)
+			info->start[i] = baseaddr + (i * 0x00040000);
+	} else {
+		/* set up sector start adress table (bottom sector type) */
+		for (i = 0; i < 8; i++) {
+			info->start[i] = baseaddr + (i * 0x00008000);
+		}
+		for (i = 8; i < info->sector_count; i++) {
+			info->start[i] = baseaddr + (i * 0x00040000) - 0x001C0000;
+		}
+	}
+	/* check for protected sectors */
+	for (i = 0; i < info->sector_count; i++) {
+		/* read sector protection at sector address, (A7 .. A0) = 0x02 */
+		if ((V_ULONG( info->start[i] + 16 ) & 0x00010001) ||
+		    (V_ULONG( info->start[i] + 20 ) & 0x00010001)) {
+			info->protect[i] = 1;		/* D0 = 1 if protected */
+		} else {
+			info->protect[i] = 0;
+		}
+	}
+
+	flash_reset();
+	return(info->size);
 }
 
 /*-----------------------------------------------------------------------
  */
 unsigned long flash_init (void)
 {
-    unsigned long size_b0 = 0;
-    int i;
+	unsigned long size_b0 = 0;
+	int i;
 
-    /* Init: no FLASHes known */
-    for (i=0; i<CFG_MAX_FLASH_BANKS; ++i) {
-	flash_info[i].flash_id = FLASH_UNKNOWN;
-    }
+	/* 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 (only one bank) */
+	/* Static FLASH Bank configuration here (only one bank) */
 
-    size_b0 = flash_get_size(CFG_FLASH0_BASE, &flash_info[0]);
-    if (flash_info[0].flash_id == FLASH_UNKNOWN || size_b0 == 0) {
-	printf ("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n",
-		size_b0, size_b0>>20);
-    }
+	size_b0 = flash_get_size(CFG_FLASH0_BASE, &flash_info[0]);
+	if (flash_info[0].flash_id == FLASH_UNKNOWN || size_b0 == 0) {
+		printf ("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n",
+			size_b0, size_b0>>20);
+	}
 
-    /*
-     * protect monitor and environment sectors
-     */
+	/*
+	 * protect monitor and environment sectors
+	 */
 
 #if CFG_MONITOR_BASE >= CFG_FLASH0_BASE
-    flash_protect(FLAG_PROTECT_SET,
-		  CFG_MONITOR_BASE,
-		  CFG_MONITOR_BASE+monitor_flash_len-1,
-		  &flash_info[0]);
+	flash_protect(FLAG_PROTECT_SET,
+		      CFG_MONITOR_BASE,
+		      CFG_MONITOR_BASE+monitor_flash_len-1,
+		      &flash_info[0]);
 #endif
 
 #if (CFG_ENV_IS_IN_FLASH == 1) && defined(CFG_ENV_ADDR)
 # ifndef  CFG_ENV_SIZE
 #  define CFG_ENV_SIZE	CFG_ENV_SECT_SIZE
 # endif
-    flash_protect(FLAG_PROTECT_SET,
-		  CFG_ENV_ADDR,
-		  CFG_ENV_ADDR + CFG_ENV_SIZE - 1,
-		  &flash_info[0]);
+	flash_protect(FLAG_PROTECT_SET,
+		      CFG_ENV_ADDR,
+		      CFG_ENV_ADDR + CFG_ENV_SIZE - 1,
+		      &flash_info[0]);
 #endif
 
-    return (size_b0);
+	return (size_b0);
 }
 
 /*-----------------------------------------------------------------------
  */
 void flash_print_info  (flash_info_t *info)
 {
-    int i;
+	int i;
 
-    if (info->flash_id == FLASH_UNKNOWN) {
-	printf ("missing or unknown FLASH type\n");
-	return;
-    }
+	if (info->flash_id == FLASH_UNKNOWN) {
+		printf ("missing or unknown FLASH type\n");
+		return;
+	}
 
-    switch ((info->flash_id >> 16) & 0xff) {
-    case FLASH_MAN_AMD:	    printf ("AMD ");		    break;
-    default:		    printf ("Unknown Vendor ");	    break;
-    }
+	switch ((info->flash_id >> 16) & 0xff) {
+	case FLASH_MAN_AMD:	    printf ("AMD ");		    break;
+	default:		    printf ("Unknown Vendor ");	    break;
+	}
 
-    switch (info->flash_id & FLASH_TYPEMASK) {
-    case FLASH_AMDL323B:	printf ("29DL323B (32 M, bottom sector)\n");
+	switch (info->flash_id & FLASH_TYPEMASK) {
+	case FLASH_AMDL323B:	printf ("29DL323B (32 M, bottom sector)\n");
 				break;
-    default:			printf ("Unknown Chip Type\n");
+	case FLASH_AMLV640U:	printf ("29LV640U (64 M, uniform sector)\n");
 				break;
-    }
-
-    printf ("  Size: %ld MB in %d Sectors\n",
-	    info->size >> 20, info->sector_count);
-
-    printf ("  Sector Start Addresses:");
-    for (i=0; i<info->sector_count; ++i) {
-	if ((i % 5) == 0)
-	  printf ("\n   ");
-	printf (" %08lX%s",
-		info->start[i],
-		info->protect[i] ? " (RO)" : "     "
-		);
-    }
-    printf ("\n");
-    return;
+	default:		printf ("Unknown Chip Type\n");
+				break;
+	}
+
+	printf ("  Size: %ld MB in %d Sectors\n",
+		info->size >> 20, info->sector_count);
+
+	printf ("  Sector Start Addresses:");
+	for (i=0; i<info->sector_count; ++i) {
+		if ((i % 5) == 0)
+			printf ("\n   ");
+		printf (" %08lX%s",
+			info->start[i],
+			info->protect[i] ? " (RO)" : "     "
+			);
+	}
+	printf ("\n");
+	return;
 }
 
 /*-----------------------------------------------------------------------
  */
 int flash_erase (flash_info_t *info, int s_first, int s_last)
 {
-    int flag, prot, sect, l_sect;
-    ulong start, now, last;
+	int flag, prot, sect, l_sect;
+	ulong start, now, last;
+
+	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 ((s_first < 0) || (s_first > s_last)) {
-	if (info->flash_id == FLASH_UNKNOWN) {
-	    printf ("- missing\n");
-	} else {
-	    printf ("- no sectors to erase\n");
+	prot = 0;
+	for (sect = s_first; sect <= s_last; sect++) {
+		if (info->protect[sect])
+			prot++;
 	}
-	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();
-
-    V_ULONG( info->start[0] + (0x0555 << 3) ) = 0x00AA00AA;
-    V_ULONG( info->start[0] + (0x02AA << 3) ) = 0x00550055;
-    V_ULONG( info->start[0] + (0x0555 << 3) ) = 0x00800080;
-    V_ULONG( info->start[0] + (0x0555 << 3) ) = 0x00AA00AA;
-    V_ULONG( info->start[0] + (0x02AA << 3) ) = 0x00550055;
-    V_ULONG( info->start[0] + 4 + (0x0555 << 3) ) = 0x00AA00AA;
-    V_ULONG( info->start[0] + 4 + (0x02AA << 3) ) = 0x00550055;
-    V_ULONG( info->start[0] + 4 + (0x0555 << 3) ) = 0x00800080;
-    V_ULONG( info->start[0] + 4 + (0x0555 << 3) ) = 0x00AA00AA;
-    V_ULONG( info->start[0] + 4 + (0x02AA << 3) ) = 0x00550055;
-    udelay (1000);
-
-    /* Start erase on unprotected sectors */
-    for (sect = s_first; sect<=s_last; sect++) {
-	if (info->protect[sect] == 0) {	/* not protected */
-	    V_ULONG( info->start[sect] ) = 0x00300030;
-	    V_ULONG( info->start[sect] + 4 ) = 0x00300030;
-	    l_sect = sect;
+
+	if (prot) {
+		printf ("- Warning: %d protected sectors will not be erased!\n",
+			prot);
+	} else {
+		printf ("\n");
 	}
-    }
-
-    /* re-enable interrupts if necessary */
-    if (flag)
-      enable_interrupts();
-
-    /* wait at least 80us - let's wait 1 ms */
-    udelay (1000);
-
-    /*
-     * We wait for the last triggered sector
-     */
-    if (l_sect < 0)
-      goto DONE;
-
-    start = get_timer (0);
-    last  = start;
-    while ((V_ULONG( info->start[l_sect] ) & 0x00800080) != 0x00800080 ||
-	   (V_ULONG( info->start[l_sect] + 4 ) & 0x00800080) != 0x00800080)
-    {
-	if ((now = get_timer(start)) > CFG_FLASH_ERASE_TOUT) {
-	    printf ("Timeout\n");
-	    return 1;
+
+	l_sect = -1;
+
+	/* Disable interrupts which might cause a timeout here */
+	flag = disable_interrupts();
+
+	V_ULONG( info->start[0] + (0x0555 << 3) ) = 0x00AA00AA;
+	V_ULONG( info->start[0] + (0x02AA << 3) ) = 0x00550055;
+	V_ULONG( info->start[0] + (0x0555 << 3) ) = 0x00800080;
+	V_ULONG( info->start[0] + (0x0555 << 3) ) = 0x00AA00AA;
+	V_ULONG( info->start[0] + (0x02AA << 3) ) = 0x00550055;
+	V_ULONG( info->start[0] + 4 + (0x0555 << 3) ) = 0x00AA00AA;
+	V_ULONG( info->start[0] + 4 + (0x02AA << 3) ) = 0x00550055;
+	V_ULONG( info->start[0] + 4 + (0x0555 << 3) ) = 0x00800080;
+	V_ULONG( info->start[0] + 4 + (0x0555 << 3) ) = 0x00AA00AA;
+	V_ULONG( info->start[0] + 4 + (0x02AA << 3) ) = 0x00550055;
+	udelay (1000);
+
+	/* Start erase on unprotected sectors */
+	for (sect = s_first; sect<=s_last; sect++) {
+		if (info->protect[sect] == 0) {	/* not protected */
+			V_ULONG( info->start[sect] ) = 0x00300030;
+			V_ULONG( info->start[sect] + 4 ) = 0x00300030;
+			l_sect = sect;
+		}
 	}
-	/* show that we're waiting */
-	if ((now - last) > 1000) {	/* every second */
-	    serial_putc ('.');
-	    last = now;
+
+	/* re-enable interrupts if necessary */
+	if (flag)
+		enable_interrupts();
+
+	/* wait at least 80us - let's wait 1 ms */
+	udelay (1000);
+
+	/*
+	 * We wait for the last triggered sector
+	 */
+	if (l_sect < 0)
+		goto DONE;
+
+	start = get_timer (0);
+	last  = start;
+	while ((V_ULONG( info->start[l_sect] ) & 0x00800080) != 0x00800080 ||
+	       (V_ULONG( info->start[l_sect] + 4 ) & 0x00800080) != 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 */
+			serial_putc ('.');
+			last = now;
+		}
 	}
-    }
 
-    DONE:
-    /* reset to read mode */
-    flash_reset ();
+ DONE:
+	/* reset to read mode */
+	flash_reset ();
 
-    printf (" done\n");
-    return 0;
+	printf (" done\n");
+	return 0;
 }
 
 static int write_dword (flash_info_t *, ulong, unsigned char *);
@@ -299,49 +314,49 @@ static int write_dword (flash_info_t *, ulong, unsigned char *);
 
 int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt)
 {
-    ulong dp;
-    static unsigned char bb[8];
-    int i, l, rc, cc = cnt;
-
-    dp = (addr & ~7);	/* get lower dword aligned address */
-
-    /*
-     * handle unaligned start bytes
-     */
-    if ((l = addr - dp) != 0) {
-	for (i = 0; i < 8; i++)
-	    bb[i] = (i < l || (i-l) >= cc) ? V_BYTE(dp+i) : *src++;
-	if ((rc = write_dword(info, dp, bb)) != 0)
-	{
-	    return (rc);
+	ulong dp;
+	static unsigned char bb[8];
+	int i, l, rc, cc = cnt;
+
+	dp = (addr & ~7);	/* get lower dword aligned address */
+
+	/*
+	 * handle unaligned start bytes
+	 */
+	if ((l = addr - dp) != 0) {
+		for (i = 0; i < 8; i++)
+			bb[i] = (i < l || (i-l) >= cc) ? V_BYTE(dp+i) : *src++;
+		if ((rc = write_dword(info, dp, bb)) != 0)
+		{
+			return (rc);
+		}
+		dp += 8;
+		cc -= 8 - l;
+	}
+
+	/*
+	 * handle word aligned part
+	 */
+	while (cc >= 8) {
+		if ((rc = write_dword(info, dp, src)) != 0) {
+			return (rc);
+		}
+		dp  += 8;
+		src += 8;
+		cc -= 8;
 	}
-	dp += 8;
-	cc -= 8 - l;
-    }
-
-    /*
-     * handle word aligned part
-     */
-    while (cc >= 8) {
-	if ((rc = write_dword(info, dp, src)) != 0) {
-	    return (rc);
+
+	if (cc <= 0) {
+		return (0);
 	}
-	dp  += 8;
-	src += 8;
-	cc -= 8;
-    }
 
-    if (cc <= 0) {
-	return (0);
-    }
-
-    /*
-     * handle unaligned tail bytes
-     */
-    for (i = 0; i < 8; i++) {
-	bb[i] = (i < cc) ? *src++ : V_BYTE(dp+i);
-    }
-    return (write_dword(info, dp, bb));
+	/*
+	 * handle unaligned tail bytes
+	 */
+	for (i = 0; i < 8; i++) {
+		bb[i] = (i < cc) ? *src++ : V_BYTE(dp+i);
+	}
+	return (write_dword(info, dp, bb));
 }
 
 /*-----------------------------------------------------------------------
@@ -352,45 +367,45 @@ int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt)
  */
 static int write_dword (flash_info_t *info, ulong dest, unsigned char * pdata)
 {
-    ulong start;
-    ulong cl = 0, ch =0;
-    int flag, i;
-
-    for (ch=0, i=0; i < 4; i++)
-	ch = (ch << 8) + *pdata++;	/* high word	*/
-    for (cl=0, i=0; i < 4; i++)
-	cl = (cl << 8) + *pdata++;	/* low word	*/
-
-    /* Check if Flash is (sufficiently) erased */
-    if ((*((vu_long *)dest) & ch)	!= ch
-      ||(*((vu_long *)(dest + 4)) & cl)	!= cl)
-    {
-	return (2);
-    }
-
-    /* Disable interrupts which might cause a timeout here */
-    flag = disable_interrupts();
-
-    V_ULONG( info->start[0] + (0x0555 << 3) ) = 0x00AA00AA;
-    V_ULONG( info->start[0] + (0x02AA << 3) ) = 0x00550055;
-    V_ULONG( info->start[0] + (0x0555 << 3) ) = 0x00A000A0;
-    V_ULONG( dest ) = ch;
-    V_ULONG( info->start[0] + 4 + (0x0555 << 3) ) = 0x00AA00AA;
-    V_ULONG( info->start[0] + 4 + (0x02AA << 3) ) = 0x00550055;
-    V_ULONG( info->start[0] + 4 + (0x0555 << 3) ) = 0x00A000A0;
-    V_ULONG( dest + 4 ) = cl;
-
-    /* re-enable interrupts if necessary */
-    if (flag)
-      enable_interrupts();
-
-    /* data polling for D7 */
-    start = get_timer (0);
-    while (((V_ULONG( dest ) & 0x00800080) != (ch & 0x00800080)) ||
-	   ((V_ULONG( dest + 4 ) & 0x00800080) != (cl & 0x00800080))) {
-	if (get_timer(start) > CFG_FLASH_WRITE_TOUT) {
-	    return (1);
+	ulong start;
+	ulong cl = 0, ch =0;
+	int flag, i;
+
+	for (ch=0, i=0; i < 4; i++)
+		ch = (ch << 8) + *pdata++;	/* high word	*/
+	for (cl=0, i=0; i < 4; i++)
+		cl = (cl << 8) + *pdata++;	/* low word	*/
+
+	/* Check if Flash is (sufficiently) erased */
+	if ((*((vu_long *)dest) & ch)	!= ch
+	    ||(*((vu_long *)(dest + 4)) & cl)	!= cl)
+	{
+		return (2);
 	}
-    }
-    return (0);
+
+	/* Disable interrupts which might cause a timeout here */
+	flag = disable_interrupts();
+
+	V_ULONG( info->start[0] + (0x0555 << 3) ) = 0x00AA00AA;
+	V_ULONG( info->start[0] + (0x02AA << 3) ) = 0x00550055;
+	V_ULONG( info->start[0] + (0x0555 << 3) ) = 0x00A000A0;
+	V_ULONG( dest ) = ch;
+	V_ULONG( info->start[0] + 4 + (0x0555 << 3) ) = 0x00AA00AA;
+	V_ULONG( info->start[0] + 4 + (0x02AA << 3) ) = 0x00550055;
+	V_ULONG( info->start[0] + 4 + (0x0555 << 3) ) = 0x00A000A0;
+	V_ULONG( dest + 4 ) = cl;
+
+	/* re-enable interrupts if necessary */
+	if (flag)
+		enable_interrupts();
+
+	/* data polling for D7 */
+	start = get_timer (0);
+	while (((V_ULONG( dest ) & 0x00800080) != (ch & 0x00800080)) ||
+	       ((V_ULONG( dest + 4 ) & 0x00800080) != (cl & 0x00800080))) {
+		if (get_timer(start) > CFG_FLASH_WRITE_TOUT) {
+			return (1);
+		}
+	}
+	return (0);
 }