Merge branch 'master' of git://git.denx.de/u-boot-x86

1 files changed, 0 insertions, 791 deletions

diff --git a/board/sc520_spunk/flash.c b/board/sc520_spunk/flash.c
deleted file mode 100644
index d702046f91..0000000000
--- a/board/sc520_spunk/flash.c
+++ /dev/null
@@ -1,791 +0,0 @@
-/*
- * (C) Copyright 2002, 2003
- * Daniel Engström, Omicron Ceti AB, daniel@omicron.se
- *
- * (C) Copyright 2002
- * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
- * Alex Zuepke <azu@sysgo.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
- */
-
-#include <common.h>
-#include <asm/io.h>
-#include <pci.h>
-#include <asm/ic/sc520.h>
-
-#define PROBE_BUFFER_SIZE 1024
-static unsigned char buffer[PROBE_BUFFER_SIZE];
-
-#define SC520_MAX_FLASH_BANKS  1
-#define SC520_FLASH_BANK0_BASE 0x38000000  /* BOOTCS */
-#define SC520_FLASH_BANKSIZE   0x8000000
-
-#define A29LV641DH_SIZE        0x800000
-#define A29LV641DH_SECTORS     128
-
-#define A29LV641MH_SIZE        0x800000
-#define A29LV641MH_SECTORS     128
-
-#define I28F320J3A_SIZE        0x400000
-#define I28F320J3A_SECTORS     32
-
-#define I28F640J3A_SIZE        0x800000
-#define I28F640J3A_SECTORS     64
-
-#define I28F128J3A_SIZE        0x1000000
-#define I28F128J3A_SECTORS     128
-
-flash_info_t    flash_info[SC520_MAX_FLASH_BANKS];
-
-#define READY 1
-#define ERR   2
-#define TMO   4
-
-/*-----------------------------------------------------------------------
- */
-
-static u32 _probe_flash(u32 addr, u32 bw, int il)
-{
-	u32 result=0;
-
-	/* First do an unlock cycle for the benefit of
-	 * devices that need it */
-
-	switch (bw) {
-
-	case 1:
-		*(volatile u8*)(addr+0x5555) = 0xaa;
-		*(volatile u8*)(addr+0x2aaa) = 0x55;
-		*(volatile u8*)(addr+0x5555) = 0x90;
-
-		/* Read vendor */
-		result = *(volatile u8*)addr;
-		result <<= 16;
-
-		/* Read device */
-		result |= *(volatile u8*)(addr+2);
-
-		/* Return device to data mode */
-		*(volatile u8*)addr = 0xff;
-		*(volatile u8*)(addr+0x5555), 0xf0;
-		break;
-
-	case 2:
-		*(volatile u16*)(addr+0xaaaa) = 0xaaaa;
-		*(volatile u16*)(addr+0x5554) = 0x5555;
-
-		/* Issue identification command */
-		if (il == 2) {
-			*(volatile u16*)(addr+0xaaaa) = 0x9090;
-
-			/* Read vendor */
-			result = *(volatile u8*)addr;
-			result <<= 16;
-
-			/* Read device */
-			result |= *(volatile u8*)(addr+2);
-
-			/* Return device to data mode */
-			*(volatile u16*)addr =  0xffff;
-			*(volatile u16*)(addr+0xaaaa), 0xf0f0;
-
-		} else {
-			*(volatile u8*)(addr+0xaaaa) = 0x90;
-			/* Read vendor */
-			result = *(volatile u16*)addr;
-			result <<= 16;
-
-			/* Read device */
-			result |= *(volatile u16*)(addr+2);
-
-			/* Return device to data mode */
-			*(volatile u8*)addr = 0xff;
-			*(volatile u8*)(addr+0xaaaa), 0xf0;
-		}
-
-		break;
-
-	 case 4:
-		*(volatile u32*)(addr+0x5554) = 0xaaaaaaaa;
-		*(volatile u32*)(addr+0xaaa8) = 0x55555555;
-
-		switch (il) {
-		case 1:
-			/* Issue identification command */
-			*(volatile u8*)(addr+0x5554) = 0x90;
-
-			/* Read vendor */
-			result = *(volatile u16*)addr;
-			result <<= 16;
-
-			/* Read device */
-			result |= *(volatile u16*)(addr+4);
-
-			/* Return device to data mode */
-			*(volatile u8*)addr =  0xff;
-			*(volatile u8*)(addr+0x5554), 0xf0;
-			break;
-
-		case 2:
-			/* Issue identification command */
-			*(volatile u32*)(addr + 0x5554) = 0x00900090;
-
-			/* Read vendor */
-			result = *(volatile u16*)addr;
-			result <<= 16;
-
-			/* Read device */
-			result |= *(volatile u16*)(addr+4);
-
-			/* Return device to data mode */
-			*(volatile u32*)addr =  0x00ff00ff;
-			*(volatile u32*)(addr+0x5554), 0x00f000f0;
-			break;
-
-		case 4:
-			/* Issue identification command */
-			*(volatile u32*)(addr+0x5554) = 0x90909090;
-
-			/* Read vendor */
-			result = *(volatile u8*)addr;
-			result <<= 16;
-
-			/* Read device */
-			result |= *(volatile u8*)(addr+4);
-
-			/* Return device to data mode */
-			*(volatile u32*)addr =  0xffffffff;
-			*(volatile u32*)(addr+0x5554), 0xf0f0f0f0;
-			break;
-		}
-		break;
-	}
-
-	return result;
-}
-
-extern int _probe_flash_end;
-asm ("_probe_flash_end:\n"
-     ".long 0\n");
-
-static int identify_flash(unsigned address, int width)
-{
-	int is;
-	int device;
-	int vendor;
-	int size;
-	unsigned res;
-
-	u32 (*_probe_flash_ptr)(u32 a, u32 bw, int il);
-
-	size = (unsigned)&_probe_flash_end - (unsigned)_probe_flash;
-
-	if (size > PROBE_BUFFER_SIZE) {
-		printf("_probe_flash() routine too large (%d) %p - %p\n",
-		       size, &_probe_flash_end, _probe_flash);
-		return 0;
-	}
-
-	memcpy(buffer, _probe_flash, size);
-	_probe_flash_ptr = (void*)buffer;
-
-	is = disable_interrupts();
-	res = _probe_flash_ptr(address, width, 1);
-	if (is) {
-		enable_interrupts();
-	}
-
-	vendor = res >> 16;
-	device = res & 0xffff;
-
-	return res;
-}
-
-ulong flash_init(void)
-{
-	int i, j;
-	ulong size = 0;
-
-	for (i = 0; i < SC520_MAX_FLASH_BANKS; i++) {
-		unsigned id;
-		ulong flashbase = 0;
-		int sectsize = 0;
-
-		memset(flash_info[i].protect, 0, CONFIG_SYS_MAX_FLASH_SECT);
-		switch (i) {
-		case 0:
-			flashbase = SC520_FLASH_BANK0_BASE;
-			break;
-		default:
-			panic("configured too many flash banks!\n");
-		}
-
-		id = identify_flash(flashbase, 2);
-		switch (id) {
-		case 0x000122d7:
-			/* 29LV641DH */
-			flash_info[i].flash_id =
-				(AMD_MANUFACT & FLASH_VENDMASK) |
-				(AMD_ID_LV640U & FLASH_TYPEMASK);
-
-			flash_info[i].size = A29LV641DH_SIZE;
-			flash_info[i].sector_count = A29LV641DH_SECTORS;
-			sectsize = A29LV641DH_SIZE/A29LV641DH_SECTORS;
-			printf("Bank %d: AMD 29LV641DH\n", i);
-			break;
-
-		case 0x0001227E:
-			/* 29LV641MH */
-			flash_info[i].flash_id =
-				(AMD_MANUFACT & FLASH_VENDMASK) |
-				(AMD_ID_DL640 & FLASH_TYPEMASK);
-
-			flash_info[i].size = A29LV641MH_SIZE;
-			flash_info[i].sector_count = A29LV641MH_SECTORS;
-			sectsize = A29LV641MH_SIZE/A29LV641MH_SECTORS;
-			printf("Bank %d: AMD 29LV641MH\n", i);
-			break;
-
-		case 0x00890016:
-			/* 28F320J3A */
-			flash_info[i].flash_id =
-				(INTEL_MANUFACT & FLASH_VENDMASK) |
-				(INTEL_ID_28F320J3A & FLASH_TYPEMASK);
-
-			flash_info[i].size = I28F320J3A_SIZE;
-			flash_info[i].sector_count = I28F320J3A_SECTORS;
-			sectsize = I28F320J3A_SIZE/I28F320J3A_SECTORS;
-			printf("Bank %d: Intel 28F320J3A\n", i);
-			break;
-
-		case 0x00890017:
-			/* 28F640J3A */
-			flash_info[i].flash_id =
-				(INTEL_MANUFACT & FLASH_VENDMASK) |
-				(INTEL_ID_28F640J3A & FLASH_TYPEMASK);
-
-			flash_info[i].size = I28F640J3A_SIZE;
-			flash_info[i].sector_count = I28F640J3A_SECTORS;
-			sectsize = I28F640J3A_SIZE/I28F640J3A_SECTORS;
-			printf("Bank %d: Intel 28F640J3A\n", i);
-			break;
-
-		case 0x00890018:
-			/* 28F128J3A */
-			flash_info[i].flash_id =
-				(INTEL_MANUFACT & FLASH_VENDMASK) |
-				(INTEL_ID_28F128J3A & FLASH_TYPEMASK);
-
-			flash_info[i].size = I28F128J3A_SIZE;
-			flash_info[i].sector_count = I28F128J3A_SECTORS;
-			sectsize = I28F128J3A_SIZE/I28F128J3A_SECTORS;
-			printf("Bank %d: Intel 28F128J3A\n", i);
-			break;
-
-		default:
-			printf("Bank %d have unknown flash %08x\n", i, id);
-			flash_info[i].flash_id = FLASH_UNKNOWN;
-			continue;
-		}
-
-		for (j = 0; j < flash_info[i].sector_count; j++) {
-			flash_info[i].start[j] = flashbase + j * sectsize;
-		}
-		size += flash_info[i].size;
-
-		flash_protect(FLAG_PROTECT_CLEAR,
-			      flash_info[i].start[0],
-			       flash_info[i].start[0] + flash_info[i].size - 1,
-			      &flash_info[i]);
-	}
-
-	/*
-	 * Protect monitor and environment sectors
-	 */
-	flash_protect(FLAG_PROTECT_SET,
-		      i386boot_start,
-		      i386boot_end,
-		      &flash_info[0]);
-#ifdef CONFIG_ENV_ADDR
-	flash_protect(FLAG_PROTECT_SET,
-		      CONFIG_ENV_ADDR,
-		      CONFIG_ENV_ADDR + CONFIG_ENV_SIZE - 1,
-		      &flash_info[0]);
-#endif
-	return size;
-}
-
-/*-----------------------------------------------------------------------
- */
-void flash_print_info(flash_info_t *info)
-{
-	int i;
-
-	switch (info->flash_id & FLASH_VENDMASK) {
-	case (INTEL_MANUFACT & FLASH_VENDMASK):
-		printf("INTEL: ");
-		switch (info->flash_id & FLASH_TYPEMASK) {
-		case (INTEL_ID_28F320J3A & FLASH_TYPEMASK):
-			printf("1x I28F320J3A (32Mbit)\n");
-			break;
-		case (INTEL_ID_28F640J3A & FLASH_TYPEMASK):
-			printf("1x I28F640J3A (64Mbit)\n");
-			break;
-		case (INTEL_ID_28F128J3A & FLASH_TYPEMASK):
-			printf("1x I28F128J3A (128Mbit)\n");
-			break;
-		default:
-			printf("Unknown Chip Type\n");
-			goto done;
-			break;
-		}
-
-		break;
-
-	case (AMD_MANUFACT & FLASH_VENDMASK):
-		printf("AMD:   ");
-		switch (info->flash_id & FLASH_TYPEMASK) {
-		case (AMD_ID_LV640U & FLASH_TYPEMASK):
-			printf("1x AMD29LV641DH (64Mbit)\n");
-			break;
-		case (AMD_ID_DL640 & FLASH_TYPEMASK):
-			printf("1x AMD29LV641MH (64Mbit)\n");
-			break;
-		default:
-			printf("Unknown Chip Type\n");
-			goto done;
-			break;
-		}
-
-		break;
-	default:
-		printf("Unknown Vendor ");
-		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");
-
-done:
-	return;
-}
-
-/*-----------------------------------------------------------------------
- */
-
-static u32 _amd_erase_flash(u32 addr, u32 sector)
-{
-	unsigned elapsed;
-
-	/* Issue erase */
-	*(volatile u16*)(addr + 0xaaaa) = 0x00AA;
-	*(volatile u16*)(addr + 0x5554) = 0x0055;
-	*(volatile u16*)(addr + 0xaaaa) = 0x0080;
-	/* And one unlock */
-	*(volatile u16*)(addr + 0xaaaa) = 0x00AA;
-	*(volatile u16*)(addr + 0x5554) = 0x0055;
-	/* Sector erase command comes last */
-	*(volatile u16*)(addr + sector) = 0x0030;
-
-	elapsed = *(volatile u16*)(0xfffef000+SC520_SWTMRMILLI); /* dummy read */
-	elapsed = 0;
-	while (((*(volatile u16*)(addr + sector)) & 0x0080) != 0x0080) {
-
-		elapsed += *(volatile u16*)(0xfffef000+SC520_SWTMRMILLI);
-		if (elapsed > ((CONFIG_SYS_FLASH_ERASE_TOUT/CONFIG_SYS_HZ) * 1000)) {
-			*(volatile u16*)(addr) = 0x00f0;
-			return 1;
-		}
-	}
-
-	*(volatile u16*)(addr) = 0x00f0;
-
-	return 0;
-}
-
-extern int _amd_erase_flash_end;
-asm ("_amd_erase_flash_end:\n"
-     ".long 0\n");
-
-/* this needs to be inlined, the SWTMRMMILLI register is reset by each read */
-#define __udelay(delay) \
-{	\
-	unsigned micro; \
-	unsigned milli=0; \
-	\
-	micro = *(volatile u16*)(0xfffef000+SC520_SWTMRMILLI); \
-	 \
-	for (;;) { \
-		\
-		milli += *(volatile u16*)(0xfffef000+SC520_SWTMRMILLI); \
-		micro = *(volatile u16*)(0xfffef000+SC520_SWTMRMICRO); \
-		\
-		if ((delay) <= (micro + (milli * 1000))) { \
-			break; \
-		} \
-	} \
-} while (0)
-
-static u32 _intel_erase_flash(u32 addr, u32 sector)
-{
-	unsigned elapsed;
-
-	*(volatile u16*)(addr + sector) = 0x0050;   /* clear status register */
-	*(volatile u16*)(addr + sector) = 0x0020;   /* erase setup */
-	*(volatile u16*)(addr + sector) = 0x00D0;   /* erase confirm */
-
-	/* Wait at least 80us - let's wait 1 ms */
-	__udelay(1000);
-
-	elapsed = 0;
-	while (((*(volatile u16*)(addr + sector)) & 0x0080) != 0x0080) {
-		elapsed += *(volatile u16*)(0xfffef000+SC520_SWTMRMILLI);
-		if (elapsed > ((CONFIG_SYS_FLASH_ERASE_TOUT/CONFIG_SYS_HZ) * 1000)) {
-			*(volatile u16*)(addr + sector) = 0x00B0;  /* suspend erase      */
-			*(volatile u16*)(addr + sector) = 0x00FF;  /* reset to read mode */
-			return 1;
-		}
-	}
-
-	*(volatile u16*)(addr + sector) = 0x00FF;  /* reset to read mode */
-
-	return 0;
-}
-
-extern int _intel_erase_flash_end;
-asm ("_intel_erase_flash_end:\n"
-     ".long 0\n");
-
-int flash_erase(flash_info_t *info, int s_first, int s_last)
-{
-	u32 (*_erase_flash_ptr)(u32 a, u32 so);
-	int prot;
-	int sect;
-	unsigned size;
-
-	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_VENDMASK) == (AMD_MANUFACT & FLASH_VENDMASK)) {
-		size = (unsigned)&_amd_erase_flash_end - (unsigned)_amd_erase_flash;
-
-		if (size > PROBE_BUFFER_SIZE) {
-			printf("_amd_erase_flash() routine too large (%d) %p - %p\n",
-			       size, &_amd_erase_flash_end, _amd_erase_flash);
-			return 0;
-		}
-
-		memcpy(buffer, _amd_erase_flash, size);
-		_erase_flash_ptr = (void*)buffer;
-
-	} else if ((info->flash_id & FLASH_VENDMASK) == (INTEL_MANUFACT & FLASH_VENDMASK)) {
-		size = (unsigned)&_intel_erase_flash_end - (unsigned)_intel_erase_flash;
-
-		if (size > PROBE_BUFFER_SIZE) {
-			printf("_intel_erase_flash() routine too large (%d) %p - %p\n",
-			       size, &_intel_erase_flash_end, _intel_erase_flash);
-			return 0;
-		}
-
-		memcpy(buffer, _intel_erase_flash, size);
-		_erase_flash_ptr = (void*)buffer;
-	} else {
-		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");
-	}
-
-	/* Start erase on unprotected sectors */
-	for (sect = s_first; sect<=s_last; sect++) {
-
-		if (info->protect[sect] == 0) { /* not protected */
-			int res;
-			int flag;
-
-			/* Disable interrupts which might cause a timeout here */
-			flag = disable_interrupts();
-
-			res = _erase_flash_ptr(info->start[0], info->start[sect]-info->start[0]);
-
-			/* re-enable interrupts if necessary */
-			if (flag) {
-				enable_interrupts();
-			}
-
-			if (res) {
-				printf("Erase timed out, sector %d\n", sect);
-				return res;
-			}
-
-			putc('.');
-		}
-	}
-
-	return 0;
-}
-
-/*-----------------------------------------------------------------------
- * Write a word to Flash, returns:
- * 0 - OK
- * 1 - write timeout
- * 2 - Flash not erased
- */
-static int _amd_write_word(unsigned start, unsigned dest, u16 data)
-{
-	volatile u16 *addr2 = (volatile u16*)start;
-	volatile u16 *dest2 = (volatile u16*)dest;
-	volatile u16 *data2 = (volatile u16*)&data;
-	int i;
-	unsigned elapsed;
-
-	/* Check if Flash is (sufficiently) erased */
-	if ((*((volatile u16*)dest) & (u16)data) != (u16)data) {
-		return 2;
-	}
-
-	for (i = 0; i < 2; i++) {
-
-		addr2[0x5555] = 0x00AA;
-		addr2[0x2aaa] = 0x0055;
-		addr2[0x5555] = 0x00A0;
-
-		dest2[i] = (data >> (i*16)) & 0xffff;
-
-		elapsed = *(volatile u16*)(0xfffef000+SC520_SWTMRMILLI); /* dummy read */
-		elapsed = 0;
-
-		/* data polling for D7 */
-		while ((dest2[i] & 0x0080) != (data2[i] & 0x0080)) {
-			elapsed += *(volatile u16*)(0xfffef000+SC520_SWTMRMILLI);
-			if (elapsed > ((CONFIG_SYS_FLASH_WRITE_TOUT/CONFIG_SYS_HZ) * 1000)) {
-				addr2[i] = 0x00f0;
-				return 1;
-			}
-		}
-	}
-
-	addr2[i] = 0x00f0;
-
-	return 0;
-}
-
-extern int _amd_write_word_end;
-asm ("_amd_write_word_end:\n"
-     ".long 0\n");
-
-static int _intel_write_word(unsigned start, unsigned dest, unsigned data)
-{
-	int i;
-	unsigned elapsed;
-
-	/* Check if Flash is (sufficiently) erased */
-	if ((*((volatile u16*)dest) & (u16)data) != (u16)data) {
-		return 2;
-	}
-
-	for (i = 0; i < 2; i++) {
-
-		*(volatile u16*)(dest+2*i) = 0x0040; /* write setup */
-		*(volatile u16*)(dest+2*i) = (data >> (i*16)) & 0xffff;
-
-		elapsed = *(volatile u16*)(0xfffef000+SC520_SWTMRMILLI); /* dummy read */
-		elapsed = 0;
-
-		/* data polling for D7 */
-		while ((*(volatile u16*)dest & 0x0080) != 0x0080) {
-			elapsed += *(volatile u16*)(0xfffef000+SC520_SWTMRMILLI);
-			if (elapsed > ((CONFIG_SYS_FLASH_WRITE_TOUT/CONFIG_SYS_HZ) * 1000)) {
-				*(volatile u16*)dest = 0x00ff;
-				return 1;
-			}
-		}
-	}
-
-	*(volatile u16*)dest = 0x00ff;
-
-
-	return 0;
-}
-
-extern int _intel_write_word_end;
-asm ("_intel_write_word_end:\n"
-     ".long 0\n");
-
-/*-----------------------------------------------------------------------
- * Copy memory to flash, returns:
- * 0 - OK
- * 1 - write timeout
- * 2 - Flash not erased
- * 3 - Unsupported flash type
- */
-
-int write_buff(flash_info_t *info, uchar *src, ulong addr, ulong cnt)
-{
-	ulong cp, wp, data;
-	int i, l, rc;
-	int flag;
-	u32 (*_write_word_ptr)(unsigned start, unsigned dest, unsigned data);
-	unsigned size;
-
-	if ((info->flash_id & FLASH_VENDMASK) == (AMD_MANUFACT & FLASH_VENDMASK)) {
-		size = (unsigned)&_amd_write_word_end - (unsigned)_amd_write_word;
-
-		if (size > PROBE_BUFFER_SIZE) {
-			printf("_amd_write_word() routine too large (%d) %p - %p\n",
-			       size, &_amd_write_word_end, _amd_write_word);
-			return 0;
-		}
-
-		memcpy(buffer, _amd_write_word, size);
-		_write_word_ptr = (void*)buffer;
-
-	} else if ((info->flash_id & FLASH_VENDMASK) == (INTEL_MANUFACT & FLASH_VENDMASK)) {
-		size = (unsigned)&_intel_write_word_end - (unsigned)_intel_write_word;
-
-		if (size > PROBE_BUFFER_SIZE) {
-			printf("_intel_write_word() routine too large (%d) %p - %p\n",
-			       size, &_intel_write_word_end, _intel_write_word);
-			return 0;
-		}
-
-		memcpy(buffer, _intel_write_word, size);
-		_write_word_ptr = (void*)buffer;
-	} else {
-		printf ("Can't program unknown flash type - aborted\n");
-		return 3;
-	}
-
-	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 |= (*(uchar *)cp) << (8*i);
-		}
-		for (; i<4 && cnt>0; ++i) {
-			data |= *src++ << (8*i);
-			--cnt;
-			++cp;
-		}
-		for (; cnt==0 && i<4; ++i, ++cp) {
-			data |= (*(uchar *)cp)  << (8*i);
-		}
-
-		/* Disable interrupts which might cause a timeout here */
-		flag = disable_interrupts();
-
-		rc = _write_word_ptr(info->start[0], wp, data);
-
-		/* re-enable interrupts if necessary */
-		if (flag) {
-			enable_interrupts();
-		}
-		if (rc != 0) {
-			return rc;
-		}
-		wp += 4;
-	}
-
-	/*
-	 * handle word aligned part
-	 */
-	while (cnt >= 4) {
-		data = 0;
-
-		for (i=0; i<4; ++i) {
-			data |= *src++ << (8*i);
-		}
-
-		/* Disable interrupts which might cause a timeout here */
-		flag = disable_interrupts();
-
-		rc = _write_word_ptr(info->start[0], wp, data);
-
-		/* re-enable interrupts if necessary */
-		if (flag) {
-			enable_interrupts();
-		}
-		if (rc != 0) {
-			return rc;
-		}
-		wp  += 4;
-		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 |= *src++ << (8*i);
-		--cnt;
-	}
-
-	for (; i<4; ++i, ++cp) {
-		data |= (*(uchar *)cp) << (8*i);
-	}
-
-	/* Disable interrupts which might cause a timeout here */
-	flag = disable_interrupts();
-
-	rc = _write_word_ptr(info->start[0], wp, data);
-
-	/* re-enable interrupts if necessary */
-	if (flag) {
-		enable_interrupts();
-	}
-
-	return rc;
-}