- convert all files to unix line-ending

git-svn-id: svn://svn.berlios.de/openocd/trunk@347 b42882b7-edfa-0310-969c-e2dbd0fdcd60

1 files changed, 2355 insertions, 2355 deletions

diff --git a/src/flash/cfi.c b/src/flash/cfi.c
index 82120d8..88e8e63 100644
--- a/src/flash/cfi.c
+++ b/src/flash/cfi.c
@@ -1,2355 +1,2355 @@
-/***************************************************************************

- *   Copyright (C) 2005, 2007 by Dominic Rath                              *

- *   Dominic.Rath@gmx.de                                                   *

- *                                                                         *

- *   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.             *

- ***************************************************************************/

-#ifdef HAVE_CONFIG_H

-#include "config.h"

-#endif

-

-#include "replacements.h"

-

-#include "cfi.h"

-

-#include "flash.h"

-#include "target.h"

-#include "log.h"

-#include "armv4_5.h"

-#include "algorithm.h"

-#include "binarybuffer.h"

-#include "types.h"

-

-#include <stdlib.h>

-#include <string.h>

-#include <unistd.h>

-

-int cfi_register_commands(struct command_context_s *cmd_ctx);

-int cfi_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct flash_bank_s *bank);

-int cfi_erase(struct flash_bank_s *bank, int first, int last);

-int cfi_protect(struct flash_bank_s *bank, int set, int first, int last);

-int cfi_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count);

-int cfi_probe(struct flash_bank_s *bank);

-int cfi_auto_probe(struct flash_bank_s *bank);

-int cfi_erase_check(struct flash_bank_s *bank);

-int cfi_protect_check(struct flash_bank_s *bank);

-int cfi_info(struct flash_bank_s *bank, char *buf, int buf_size);

-

-int cfi_handle_part_id_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);

-

-#define CFI_MAX_BUS_WIDTH	4

-#define CFI_MAX_CHIP_WIDTH	4

-

-/* defines internal maximum size for code fragment in cfi_intel_write_block() */

-#define CFI_MAX_INTEL_CODESIZE 256

-

-flash_driver_t cfi_flash =

-{

-	.name = "cfi",

-	.register_commands = cfi_register_commands,

-	.flash_bank_command = cfi_flash_bank_command,

-	.erase = cfi_erase,

-	.protect = cfi_protect,

-	.write = cfi_write,

-	.probe = cfi_probe,

-	.auto_probe = cfi_auto_probe,

-	.erase_check = cfi_erase_check,

-	.protect_check = cfi_protect_check,

-	.info = cfi_info

-};

-

-cfi_unlock_addresses_t cfi_unlock_addresses[] =

-{

-	[CFI_UNLOCK_555_2AA] = { .unlock1 = 0x555, .unlock2 = 0x2aa },

-	[CFI_UNLOCK_5555_2AAA] = { .unlock1 = 0x5555, .unlock2 = 0x2aaa },

-};

-

-/* CFI fixups foward declarations */

-void cfi_fixup_non_cfi(flash_bank_t *flash, void *param);

-void cfi_fixup_0002_erase_regions(flash_bank_t *flash, void *param);

-void cfi_fixup_0002_unlock_addresses(flash_bank_t *flash, void *param);

-void cfi_fixup_atmel_reversed_erase_regions(flash_bank_t *flash, void *param);

-

-/* fixup after identifying JEDEC manufactuer and ID */

-cfi_fixup_t cfi_jedec_fixups[] = {

-	{CFI_MFR_SST, 0x00D4, cfi_fixup_non_cfi, NULL},

-	{CFI_MFR_SST, 0x00D5, cfi_fixup_non_cfi, NULL},

-	{CFI_MFR_SST, 0x00D6, cfi_fixup_non_cfi, NULL},

-	{CFI_MFR_SST, 0x00D7, cfi_fixup_non_cfi, NULL},

-	{CFI_MFR_SST, 0x2780, cfi_fixup_non_cfi, NULL},

-	{CFI_MFR_ST, 0x00D5, cfi_fixup_non_cfi, NULL},

-	{CFI_MFR_ST, 0x00D6, cfi_fixup_non_cfi, NULL},

-	{CFI_MFR_AMD, 0x2223, cfi_fixup_non_cfi, NULL},

-	{CFI_MFR_AMD, 0x22ab, cfi_fixup_non_cfi, NULL},

-	{0, 0, NULL, NULL}

-};

-

-/* fixup after reading cmdset 0002 primary query table */

-cfi_fixup_t cfi_0002_fixups[] = {

-	{CFI_MFR_SST, 0x00D4, cfi_fixup_0002_unlock_addresses, &cfi_unlock_addresses[CFI_UNLOCK_5555_2AAA]},

-	{CFI_MFR_SST, 0x00D5, cfi_fixup_0002_unlock_addresses, &cfi_unlock_addresses[CFI_UNLOCK_5555_2AAA]},

-	{CFI_MFR_SST, 0x00D6, cfi_fixup_0002_unlock_addresses, &cfi_unlock_addresses[CFI_UNLOCK_5555_2AAA]},

-	{CFI_MFR_SST, 0x00D7, cfi_fixup_0002_unlock_addresses, &cfi_unlock_addresses[CFI_UNLOCK_5555_2AAA]},

-	{CFI_MFR_SST, 0x2780, cfi_fixup_0002_unlock_addresses, &cfi_unlock_addresses[CFI_UNLOCK_5555_2AAA]},

-	{CFI_MFR_ATMEL, 0x00C8, cfi_fixup_atmel_reversed_erase_regions, NULL},

-	{CFI_MFR_ANY, CFI_ID_ANY, cfi_fixup_0002_erase_regions, NULL},

-	{0, 0, NULL, NULL}

-};

-

-/* fixup after reading cmdset 0001 primary query table */

-cfi_fixup_t cfi_0001_fixups[] = {

-	{0, 0, NULL, NULL}

-};

-

-void cfi_fixup(flash_bank_t *bank, cfi_fixup_t *fixups)

-{

-	cfi_flash_bank_t *cfi_info = bank->driver_priv;

-	cfi_fixup_t *f;

-

-	for (f = fixups; f->fixup; f++)

-	{

-		if (((f->mfr == CFI_MFR_ANY) || (f->mfr == cfi_info->manufacturer)) &&

-			((f->id  == CFI_ID_ANY)  || (f->id  == cfi_info->device_id)))

-		{

-			f->fixup(bank, f->param);

-		}

-	}

-}

-

-inline u32 flash_address(flash_bank_t *bank, int sector, u32 offset)

-{

-	/* while the sector list isn't built, only accesses to sector 0 work */

-	if (sector == 0)

-		return bank->base + offset * bank->bus_width;

-	else

-	{

-		if (!bank->sectors)

-		{

-			ERROR("BUG: sector list not yet built");

-			exit(-1);

-		}

-		return bank->base + bank->sectors[sector].offset + offset * bank->bus_width;

-	}

-

-}

-

-void cfi_command(flash_bank_t *bank, u8 cmd, u8 *cmd_buf)

-{

-	int i;

-

-	/* clear whole buffer, to ensure bits that exceed the bus_width

-	 * are set to zero

-	 */

-	for (i = 0; i < CFI_MAX_BUS_WIDTH; i++)

-		cmd_buf[i] = 0;

-

-	if (bank->target->endianness == TARGET_LITTLE_ENDIAN)

-	{

-		for (i = bank->bus_width; i > 0; i--)

-		{

-			*cmd_buf++ = (i & (bank->chip_width - 1)) ? 0x0 : cmd;

-		}

-	}

-	else

-	{

-		for (i = 1; i <= bank->bus_width; i++)

-		{

-			*cmd_buf++ = (i & (bank->chip_width - 1)) ? 0x0 : cmd;

-		}

-	}

-}

-

-/* read unsigned 8-bit value from the bank

- * flash banks are expected to be made of similar chips

- * the query result should be the same for all

- */

-u8 cfi_query_u8(flash_bank_t *bank, int sector, u32 offset)

-{

-	target_t *target = bank->target;

-	u8 data[CFI_MAX_BUS_WIDTH];

-

-	target->type->read_memory(target, flash_address(bank, sector, offset), bank->bus_width, 1, data);

-

-	if (bank->target->endianness == TARGET_LITTLE_ENDIAN)

-		return data[0];

-	else

-		return data[bank->bus_width - 1];

-}

-

-/* read unsigned 8-bit value from the bank

- * in case of a bank made of multiple chips,

- * the individual values are ORed

- */

-u8 cfi_get_u8(flash_bank_t *bank, int sector, u32 offset)

-{

-	target_t *target = bank->target;

-	u8 data[CFI_MAX_BUS_WIDTH];

-	int i;

-

-	target->type->read_memory(target, flash_address(bank, sector, offset), bank->bus_width, 1, data);

-

-	if (bank->target->endianness == TARGET_LITTLE_ENDIAN)

-	{

-		for (i = 0; i < bank->bus_width / bank->chip_width; i++)

-			data[0] |= data[i];

-

-		return data[0];

-	}

-	else

-	{

-		u8 value = 0;

-		for (i = 0; i < bank->bus_width / bank->chip_width; i++)

-			value |= data[bank->bus_width - 1 - i];

-

-		return value;

-	}

-}

-

-u16 cfi_query_u16(flash_bank_t *bank, int sector, u32 offset)

-{

-	target_t *target = bank->target;

-	u8 data[CFI_MAX_BUS_WIDTH * 2];

-

-	target->type->read_memory(target, flash_address(bank, sector, offset), bank->bus_width, 2, data);

-

-	if (bank->target->endianness == TARGET_LITTLE_ENDIAN)

-		return data[0] | data[bank->bus_width] << 8;

-	else

-		return data[bank->bus_width - 1] | data[(2 * bank->bus_width) - 1] << 8;

-}

-

-u32 cfi_query_u32(flash_bank_t *bank, int sector, u32 offset)

-{

-	target_t *target = bank->target;

-	u8 data[CFI_MAX_BUS_WIDTH * 4];

-

-	target->type->read_memory(target, flash_address(bank, sector, offset), bank->bus_width, 4, data);

-

-	if (bank->target->endianness == TARGET_LITTLE_ENDIAN)

-		return data[0] | data[bank->bus_width] << 8 | data[bank->bus_width * 2] << 16 | data[bank->bus_width * 3] << 24;

-	else

-		return data[bank->bus_width - 1] | data[(2* bank->bus_width) - 1] << 8 |

-				data[(3 * bank->bus_width) - 1] << 16 | data[(4 * bank->bus_width) - 1] << 24;

-}

-

-void cfi_intel_clear_status_register(flash_bank_t *bank)

-{

-	target_t *target = bank->target;

-	u8 command[8];

-

-	if (target->state != TARGET_HALTED)

-	{

-		ERROR("BUG: attempted to clear status register while target wasn't halted");

-		exit(-1);

-	}

-

-	cfi_command(bank, 0x50, command);

-	target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);

-}

-

-u8 cfi_intel_wait_status_busy(flash_bank_t *bank, int timeout)

-{

-	u8 status;

-

-	while ((!((status = cfi_get_u8(bank, 0, 0x0)) & 0x80)) && (timeout-- > 0))

-	{

-		DEBUG("status: 0x%x", status);

-		usleep(1000);

-	}

-

-	/* mask out bit 0 (reserved) */

-	status = status & 0xfe;

-

-	DEBUG("status: 0x%x", status);

-

-	if ((status & 0x80) != 0x80)

-	{

-		ERROR("timeout while waiting for WSM to become ready");

-	}

-	else if (status != 0x80)

-	{

-		ERROR("status register: 0x%x", status);

-		if (status & 0x2)

-			ERROR("Block Lock-Bit Detected, Operation Abort");

-		if (status & 0x4)

-			ERROR("Program suspended");

-		if (status & 0x8)

-			ERROR("Low Programming Voltage Detected, Operation Aborted");

-		if (status & 0x10)

-			ERROR("Program Error / Error in Setting Lock-Bit");

-		if (status & 0x20)

-			ERROR("Error in Block Erasure or Clear Lock-Bits");

-		if (status & 0x40)

-			ERROR("Block Erase Suspended");

-

-		cfi_intel_clear_status_register(bank);

-	}

-

-	return status;

-}

-

-int cfi_spansion_wait_status_busy(flash_bank_t *bank, int timeout)

-{

-	u8 status, oldstatus;

-

-	oldstatus = cfi_get_u8(bank, 0, 0x0);

-

-	do {

-		status = cfi_get_u8(bank, 0, 0x0);

-		if ((status ^ oldstatus) & 0x40) {

-			if (status & 0x20) {

-				oldstatus = cfi_get_u8(bank, 0, 0x0);

-				status = cfi_get_u8(bank, 0, 0x0);

-				if ((status ^ oldstatus) & 0x40) {

-					ERROR("dq5 timeout, status: 0x%x", status);

-					return(ERROR_FLASH_OPERATION_FAILED);

-				} else {

-					DEBUG("status: 0x%x", status);

-					return(ERROR_OK);

-				}

-			}

-		} else {

-			DEBUG("status: 0x%x", status);

-			return(ERROR_OK);

-		}

-

-		oldstatus = status;

-		usleep(1000);

-	} while (timeout-- > 0);

-

-	ERROR("timeout, status: 0x%x", status);

-

-	return(ERROR_FLASH_BUSY);

-}

-

-int cfi_read_intel_pri_ext(flash_bank_t *bank)

-{

-	cfi_flash_bank_t *cfi_info = bank->driver_priv;

-	cfi_intel_pri_ext_t *pri_ext = malloc(sizeof(cfi_intel_pri_ext_t));

-	target_t *target = bank->target;

-	u8 command[8];

-

-	cfi_info->pri_ext = pri_ext;

-

-	pri_ext->pri[0] = cfi_query_u8(bank, 0, cfi_info->pri_addr + 0);

-	pri_ext->pri[1] = cfi_query_u8(bank, 0, cfi_info->pri_addr + 1);

-	pri_ext->pri[2] = cfi_query_u8(bank, 0, cfi_info->pri_addr + 2);

-

-	if ((pri_ext->pri[0] != 'P') || (pri_ext->pri[1] != 'R') || (pri_ext->pri[2] != 'I'))

-	{

-		cfi_command(bank, 0xf0, command);

-		target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);

-		cfi_command(bank, 0xff, command);

-		target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);

-		return ERROR_FLASH_BANK_INVALID;

-	}

-

-	pri_ext->major_version = cfi_query_u8(bank, 0, cfi_info->pri_addr + 3);

-	pri_ext->minor_version = cfi_query_u8(bank, 0, cfi_info->pri_addr + 4);

-

-	DEBUG("pri: '%c%c%c', version: %c.%c", pri_ext->pri[0], pri_ext->pri[1], pri_ext->pri[2], pri_ext->major_version, pri_ext->minor_version);

-

-	pri_ext->feature_support = cfi_query_u32(bank, 0, cfi_info->pri_addr + 5);

-	pri_ext->suspend_cmd_support = cfi_query_u8(bank, 0, cfi_info->pri_addr + 9);

-	pri_ext->blk_status_reg_mask = cfi_query_u16(bank, 0, cfi_info->pri_addr + 0xa);

-

-	DEBUG("feature_support: 0x%x, suspend_cmd_support: 0x%x, blk_status_reg_mask: 0x%x", pri_ext->feature_support, pri_ext->suspend_cmd_support, pri_ext->blk_status_reg_mask);

-

-	pri_ext->vcc_optimal = cfi_query_u8(bank, 0, cfi_info->pri_addr + 0xc);

-	pri_ext->vpp_optimal = cfi_query_u8(bank, 0, cfi_info->pri_addr + 0xd);

-

-	DEBUG("Vcc opt: %1.1x.%1.1x, Vpp opt: %1.1x.%1.1x",

-		  (pri_ext->vcc_optimal & 0xf0) >> 4, pri_ext->vcc_optimal & 0x0f,

-		  (pri_ext->vpp_optimal & 0xf0) >> 4, pri_ext->vpp_optimal & 0x0f);

-

-	pri_ext->num_protection_fields = cfi_query_u8(bank, 0, cfi_info->pri_addr + 0xe);

-	if (pri_ext->num_protection_fields != 1)

-	{

-		WARNING("expected one protection register field, but found %i", pri_ext->num_protection_fields);

-	}

-

-	pri_ext->prot_reg_addr = cfi_query_u16(bank, 0, cfi_info->pri_addr + 0xf);

-	pri_ext->fact_prot_reg_size = cfi_query_u8(bank, 0, cfi_info->pri_addr + 0x11);

-	pri_ext->user_prot_reg_size = cfi_query_u8(bank, 0, cfi_info->pri_addr + 0x12);

-

-	DEBUG("protection_fields: %i, prot_reg_addr: 0x%x, factory pre-programmed: %i, user programmable: %i", pri_ext->num_protection_fields, pri_ext->prot_reg_addr, 1 << pri_ext->fact_prot_reg_size, 1 << pri_ext->user_prot_reg_size);

-

-	return ERROR_OK;

-}

-

-int cfi_read_spansion_pri_ext(flash_bank_t *bank)

-{

-	cfi_flash_bank_t *cfi_info = bank->driver_priv;

-	cfi_spansion_pri_ext_t *pri_ext = malloc(sizeof(cfi_spansion_pri_ext_t));

-	target_t *target = bank->target;

-	u8 command[8];

-

-	cfi_info->pri_ext = pri_ext;

-

-	pri_ext->pri[0] = cfi_query_u8(bank, 0, cfi_info->pri_addr + 0);

-	pri_ext->pri[1] = cfi_query_u8(bank, 0, cfi_info->pri_addr + 1);

-	pri_ext->pri[2] = cfi_query_u8(bank, 0, cfi_info->pri_addr + 2);

-

-	if ((pri_ext->pri[0] != 'P') || (pri_ext->pri[1] != 'R') || (pri_ext->pri[2] != 'I'))

-	{

-		cfi_command(bank, 0xf0, command);

-		target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);

-		return ERROR_FLASH_BANK_INVALID;

-	}

-

-	pri_ext->major_version = cfi_query_u8(bank, 0, cfi_info->pri_addr + 3);

-	pri_ext->minor_version = cfi_query_u8(bank, 0, cfi_info->pri_addr + 4);

-

-	DEBUG("pri: '%c%c%c', version: %c.%c", pri_ext->pri[0], pri_ext->pri[1], pri_ext->pri[2], pri_ext->major_version, pri_ext->minor_version);

-

-	pri_ext->SiliconRevision = cfi_query_u8(bank, 0, cfi_info->pri_addr + 5);

-	pri_ext->EraseSuspend    = cfi_query_u8(bank, 0, cfi_info->pri_addr + 6);

-	pri_ext->BlkProt         = cfi_query_u8(bank, 0, cfi_info->pri_addr + 7);

-	pri_ext->TmpBlkUnprotect = cfi_query_u8(bank, 0, cfi_info->pri_addr + 8);

-	pri_ext->BlkProtUnprot   = cfi_query_u8(bank, 0, cfi_info->pri_addr + 9);

-	pri_ext->SimultaneousOps = cfi_query_u8(bank, 0, cfi_info->pri_addr + 10);

-	pri_ext->BurstMode       = cfi_query_u8(bank, 0, cfi_info->pri_addr + 11);

-	pri_ext->PageMode        = cfi_query_u8(bank, 0, cfi_info->pri_addr + 12);

-	pri_ext->VppMin          = cfi_query_u8(bank, 0, cfi_info->pri_addr + 13);

-	pri_ext->VppMax          = cfi_query_u8(bank, 0, cfi_info->pri_addr + 14);

-	pri_ext->TopBottom       = cfi_query_u8(bank, 0, cfi_info->pri_addr + 15);

-

-	DEBUG("Silicon Revision: 0x%x, Erase Suspend: 0x%x, Block protect: 0x%x", pri_ext->SiliconRevision,

-	      pri_ext->EraseSuspend, pri_ext->BlkProt);

-

-	DEBUG("Temporary Unprotect: 0x%x, Block Protect Scheme: 0x%x, Simultaneous Ops: 0x%x", pri_ext->TmpBlkUnprotect,

-	      pri_ext->BlkProtUnprot, pri_ext->SimultaneousOps);

-

-	DEBUG("Burst Mode: 0x%x, Page Mode: 0x%x, ", pri_ext->BurstMode, pri_ext->PageMode);

-

-

-	DEBUG("Vpp min: %2.2d.%1.1d, Vpp max: %2.2d.%1.1x",

-		  (pri_ext->VppMin & 0xf0) >> 4, pri_ext->VppMin & 0x0f,

-		  (pri_ext->VppMax & 0xf0) >> 4, pri_ext->VppMax & 0x0f);

-

-	DEBUG("WP# protection 0x%x", pri_ext->TopBottom);

-

-	/* default values for implementation specific workarounds */

-	pri_ext->_unlock1 = cfi_unlock_addresses[CFI_UNLOCK_555_2AA].unlock1;

-	pri_ext->_unlock2 = cfi_unlock_addresses[CFI_UNLOCK_555_2AA].unlock2;

-	pri_ext->_reversed_geometry = 0;

-

-	return ERROR_OK;

-}

-

-int cfi_read_atmel_pri_ext(flash_bank_t *bank)

-{

-	cfi_atmel_pri_ext_t atmel_pri_ext;

-	cfi_flash_bank_t *cfi_info = bank->driver_priv;

-	cfi_spansion_pri_ext_t *pri_ext = malloc(sizeof(cfi_spansion_pri_ext_t));

-	target_t *target = bank->target;

-	u8 command[8];

-

-	/* ATMEL devices use the same CFI primary command set (0x2) as AMD/Spansion,

-	 * but a different primary extended query table.

-	 * We read the atmel table, and prepare a valid AMD/Spansion query table.

-	 */

-

-	memset(pri_ext, 0, sizeof(cfi_spansion_pri_ext_t));

-

-	cfi_info->pri_ext = pri_ext;

-

-	atmel_pri_ext.pri[0] = cfi_query_u8(bank, 0, cfi_info->pri_addr + 0);

-	atmel_pri_ext.pri[1] = cfi_query_u8(bank, 0, cfi_info->pri_addr + 1);

-	atmel_pri_ext.pri[2] = cfi_query_u8(bank, 0, cfi_info->pri_addr + 2);

-

-	if ((atmel_pri_ext.pri[0] != 'P') || (atmel_pri_ext.pri[1] != 'R') || (atmel_pri_ext.pri[2] != 'I'))

-	{

-		cfi_command(bank, 0xf0, command);

-		target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);

-		return ERROR_FLASH_BANK_INVALID;

-	}

-

-	pri_ext->pri[0] = atmel_pri_ext.pri[0];

-	pri_ext->pri[1] = atmel_pri_ext.pri[1];

-	pri_ext->pri[2] = atmel_pri_ext.pri[2];

-

-	atmel_pri_ext.major_version = cfi_query_u8(bank, 0, cfi_info->pri_addr + 3);

-	atmel_pri_ext.minor_version = cfi_query_u8(bank, 0, cfi_info->pri_addr + 4);

-

-	DEBUG("pri: '%c%c%c', version: %c.%c", atmel_pri_ext.pri[0], atmel_pri_ext.pri[1], atmel_pri_ext.pri[2], atmel_pri_ext.major_version, atmel_pri_ext.minor_version);

-

-	pri_ext->major_version = atmel_pri_ext.major_version;

-	pri_ext->minor_version = atmel_pri_ext.minor_version;

-

-	atmel_pri_ext.features = cfi_query_u8(bank, 0, cfi_info->pri_addr + 5);

-	atmel_pri_ext.bottom_boot = cfi_query_u8(bank, 0, cfi_info->pri_addr + 6);

-	atmel_pri_ext.burst_mode = cfi_query_u8(bank, 0, cfi_info->pri_addr + 7);

-	atmel_pri_ext.page_mode = cfi_query_u8(bank, 0, cfi_info->pri_addr + 8);

-

-	DEBUG("features: 0x%2.2x, bottom_boot: 0x%2.2x, burst_mode: 0x%2.2x, page_mode: 0x%2.2x",

-		atmel_pri_ext.features, atmel_pri_ext.bottom_boot, atmel_pri_ext.burst_mode, atmel_pri_ext.page_mode);

-

-	if (atmel_pri_ext.features & 0x02)

-		pri_ext->EraseSuspend = 2;

-

-	if (atmel_pri_ext.bottom_boot)

-		pri_ext->TopBottom = 2;

-	else

-		pri_ext->TopBottom = 3;

-

-	pri_ext->_unlock1 = cfi_unlock_addresses[CFI_UNLOCK_555_2AA].unlock1;

-	pri_ext->_unlock2 = cfi_unlock_addresses[CFI_UNLOCK_555_2AA].unlock2;

-

-	return ERROR_OK;

-}

-

-int cfi_read_0002_pri_ext(flash_bank_t *bank)

-{

-	cfi_flash_bank_t *cfi_info = bank->driver_priv;

-

-	if (cfi_info->manufacturer == CFI_MFR_ATMEL)

-	{

-		return cfi_read_atmel_pri_ext(bank);

-	}

-	else

-	{

-		return cfi_read_spansion_pri_ext(bank);

-	}

-}

-

-int cfi_spansion_info(struct flash_bank_s *bank, char *buf, int buf_size)

-{

-	int printed;

-	cfi_flash_bank_t *cfi_info = bank->driver_priv;

-	cfi_spansion_pri_ext_t *pri_ext = cfi_info->pri_ext;

-

-	printed = snprintf(buf, buf_size, "\nSpansion primary algorithm extend information:\n");

-	buf += printed;

-	buf_size -= printed;

-

-	printed = snprintf(buf, buf_size, "pri: '%c%c%c', version: %c.%c\n", pri_ext->pri[0],

-			   pri_ext->pri[1], pri_ext->pri[2],

-			   pri_ext->major_version, pri_ext->minor_version);

-	buf += printed;

-	buf_size -= printed;

-

-	printed = snprintf(buf, buf_size, "Silicon Rev.: 0x%x, Address Sensitive unlock: 0x%x\n",

-			   (pri_ext->SiliconRevision) >> 2,

-			   (pri_ext->SiliconRevision) & 0x03);

-	buf += printed;

-	buf_size -= printed;

-

-	printed = snprintf(buf, buf_size, "Erase Suspend: 0x%x, Sector Protect: 0x%x\n",

-			   pri_ext->EraseSuspend,

-			   pri_ext->BlkProt);

-	buf += printed;

-	buf_size -= printed;

-

-	printed = snprintf(buf, buf_size, "VppMin: %2.2d.%1.1x, VppMax: %2.2d.%1.1x\n",

-		(pri_ext->VppMin & 0xf0) >> 4, pri_ext->VppMin & 0x0f,

-		(pri_ext->VppMax & 0xf0) >> 4, pri_ext->VppMax & 0x0f);

-

-	return ERROR_OK;

-}

-

-int cfi_intel_info(struct flash_bank_s *bank, char *buf, int buf_size)

-{

-	int printed;

-	cfi_flash_bank_t *cfi_info = bank->driver_priv;

-	cfi_intel_pri_ext_t *pri_ext = cfi_info->pri_ext;

-

-	printed = snprintf(buf, buf_size, "\nintel primary algorithm extend information:\n");

-	buf += printed;

-	buf_size -= printed;

-

-	printed = snprintf(buf, buf_size, "pri: '%c%c%c', version: %c.%c\n", pri_ext->pri[0], pri_ext->pri[1], pri_ext->pri[2], pri_ext->major_version, pri_ext->minor_version);

-	buf += printed;

-	buf_size -= printed;

-

-	printed = snprintf(buf, buf_size, "feature_support: 0x%x, suspend_cmd_support: 0x%x, blk_status_reg_mask: 0x%x\n", pri_ext->feature_support, pri_ext->suspend_cmd_support, pri_ext->blk_status_reg_mask);

-	buf += printed;

-	buf_size -= printed;

-

-	printed = snprintf(buf, buf_size, "Vcc opt: %1.1x.%1.1x, Vpp opt: %1.1x.%1.1x\n",

-		(pri_ext->vcc_optimal & 0xf0) >> 4, pri_ext->vcc_optimal & 0x0f,

-		(pri_ext->vpp_optimal & 0xf0) >> 4, pri_ext->vpp_optimal & 0x0f);

-	buf += printed;

-	buf_size -= printed;

-

-	printed = snprintf(buf, buf_size, "protection_fields: %i, prot_reg_addr: 0x%x, factory pre-programmed: %i, user programmable: %i\n", pri_ext->num_protection_fields, pri_ext->prot_reg_addr, 1 << pri_ext->fact_prot_reg_size, 1 << pri_ext->user_prot_reg_size);

-

-	return ERROR_OK;

-}

-

-int cfi_register_commands(struct command_context_s *cmd_ctx)

-{

-	/*command_t *cfi_cmd = */

-	register_command(cmd_ctx, NULL, "cfi", NULL, COMMAND_ANY, "flash bank cfi <base> <size> <chip_width> <bus_width> <targetNum> [jedec_probe/x16_as_x8]");

-	/*

-	register_command(cmd_ctx, cfi_cmd, "part_id", cfi_handle_part_id_command, COMMAND_EXEC,

-					 "print part id of cfi flash bank <num>");

-	*/

-	return ERROR_OK;

-}

-

-/* flash_bank cfi <base> <size> <chip_width> <bus_width> <target#> [options]

- */

-int cfi_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct flash_bank_s *bank)

-{

-	cfi_flash_bank_t *cfi_info;

-	int i;

-

-	if (argc < 6)

-	{

-		WARNING("incomplete flash_bank cfi configuration");

-		return ERROR_FLASH_BANK_INVALID;

-	}

-

-	if ((strtoul(args[4], NULL, 0) > CFI_MAX_CHIP_WIDTH)

-		|| (strtoul(args[3], NULL, 0) > CFI_MAX_BUS_WIDTH))

-	{

-		ERROR("chip and bus width have to specified in bytes");

-		return ERROR_FLASH_BANK_INVALID;

-	}

-

-	cfi_info = malloc(sizeof(cfi_flash_bank_t));

-	cfi_info->probed = 0;

-	bank->driver_priv = cfi_info;

-

-	cfi_info->write_algorithm = NULL;

-	cfi_info->erase_check_algorithm = NULL;

-

-	cfi_info->x16_as_x8 = 0;

-	cfi_info->jedec_probe = 0;

-	cfi_info->not_cfi = 0;

-

-	for (i = 6; i < argc; i++)

-	{

-		if (strcmp(args[i], "x16_as_x8") == 0)

-		{

-			cfi_info->x16_as_x8 = 1;

-		}

-		else if (strcmp(args[i], "jedec_probe") == 0)

-		{

-			cfi_info->jedec_probe = 1;

-		}

-	}

-

-	cfi_info->write_algorithm = NULL;

-

-	/* bank wasn't probed yet */

-	cfi_info->qry[0] = -1;

-

-	return ERROR_OK;

-}

-

-int cfi_intel_erase(struct flash_bank_s *bank, int first, int last)

-{

-	cfi_flash_bank_t *cfi_info = bank->driver_priv;

-	target_t *target = bank->target;

-	u8 command[8];

-	int i;

-

-	cfi_intel_clear_status_register(bank);

-

-	for (i = first; i <= last; i++)

-	{

-		cfi_command(bank, 0x20, command);

-		target->type->write_memory(target, flash_address(bank, i, 0x0), bank->bus_width, 1, command);

-

-		cfi_command(bank, 0xd0, command);

-		target->type->write_memory(target, flash_address(bank, i, 0x0), bank->bus_width, 1, command);

-

-		if (cfi_intel_wait_status_busy(bank, 1000 * (1 << cfi_info->block_erase_timeout_typ)) == 0x80)

-			bank->sectors[i].is_erased = 1;

-		else

-		{

-			cfi_command(bank, 0xff, command);

-			target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);

-

-			ERROR("couldn't erase block %i of flash bank at base 0x%x", i, bank->base);

-			return ERROR_FLASH_OPERATION_FAILED;

-		}

-	}

-

-	cfi_command(bank, 0xff, command);

-	target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);

-

-	return ERROR_OK;

-}

-

-int cfi_spansion_erase(struct flash_bank_s *bank, int first, int last)

-{

-	cfi_flash_bank_t *cfi_info = bank->driver_priv;

-	cfi_spansion_pri_ext_t *pri_ext = cfi_info->pri_ext;

-	target_t *target = bank->target;

-	u8 command[8];

-	int i;

-

-	for (i = first; i <= last; i++)

-	{

-		cfi_command(bank, 0xaa, command);

-		target->type->write_memory(target, flash_address(bank, 0, pri_ext->_unlock1), bank->bus_width, 1, command);

-

-		cfi_command(bank, 0x55, command);

-		target->type->write_memory(target, flash_address(bank, 0, pri_ext->_unlock2), bank->bus_width, 1, command);

-

-		cfi_command(bank, 0x80, command);

-		target->type->write_memory(target, flash_address(bank, 0, pri_ext->_unlock1), bank->bus_width, 1, command);

-

-		cfi_command(bank, 0xaa, command);

-		target->type->write_memory(target, flash_address(bank, 0, pri_ext->_unlock1), bank->bus_width, 1, command);

-

-		cfi_command(bank, 0x55, command);

-		target->type->write_memory(target, flash_address(bank, 0, pri_ext->_unlock2), bank->bus_width, 1, command);

-

-		cfi_command(bank, 0x30, command);

-		target->type->write_memory(target, flash_address(bank, i, 0x0), bank->bus_width, 1, command);

-

-		if (cfi_spansion_wait_status_busy(bank, 1000 * (1 << cfi_info->block_erase_timeout_typ)) == ERROR_OK)

-			bank->sectors[i].is_erased = 1;

-		else

-		{

-			cfi_command(bank, 0xf0, command);

-			target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);

-

-			ERROR("couldn't erase block %i of flash bank at base 0x%x", i, bank->base);

-			return ERROR_FLASH_OPERATION_FAILED;

-		}

-	}

-

-	cfi_command(bank, 0xf0, command);

-	target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);

-

-	return ERROR_OK;

-}

-

-int cfi_erase(struct flash_bank_s *bank, int first, int last)

-{

-	cfi_flash_bank_t *cfi_info = bank->driver_priv;

-

-	if (bank->target->state != TARGET_HALTED)

-	{

-		return ERROR_TARGET_NOT_HALTED;

-	}

-

-	if ((first < 0) || (last < first) || (last >= bank->num_sectors))

-	{

-		return ERROR_FLASH_SECTOR_INVALID;

-	}

-

-	if (cfi_info->qry[0] != 'Q')

-		return ERROR_FLASH_BANK_NOT_PROBED;

-

-	switch(cfi_info->pri_id)

-	{

-		case 1:

-		case 3:

-			return cfi_intel_erase(bank, first, last);

-			break;

-		case 2:

-			return cfi_spansion_erase(bank, first, last);

-			break;

-		default:

-			ERROR("cfi primary command set %i unsupported", cfi_info->pri_id);

-			break;

-	}

-

-	return ERROR_OK;

-}

-

-int cfi_intel_protect(struct flash_bank_s *bank, int set, int first, int last)

-{

-	cfi_flash_bank_t *cfi_info = bank->driver_priv;

-	cfi_intel_pri_ext_t *pri_ext = cfi_info->pri_ext;

-	target_t *target = bank->target;

-	u8 command[8];

-	int retry = 0;

-	int i;

-

-	/* if the device supports neither legacy lock/unlock (bit 3) nor

-	 * instant individual block locking (bit 5).

-	 */

-	if (!(pri_ext->feature_support & 0x28))

-		return ERROR_FLASH_OPERATION_FAILED;

-

-	cfi_intel_clear_status_register(bank);

-

-	for (i = first; i <= last; i++)

-	{

-		cfi_command(bank, 0x60, command);

-		DEBUG("address: 0x%4.4x, command: 0x%4.4x", flash_address(bank, i, 0x0), target_buffer_get_u32(target, command));

-		target->type->write_memory(target, flash_address(bank, i, 0x0), bank->bus_width, 1, command);

-		if (set)

-		{

-			cfi_command(bank, 0x01, command);

-			DEBUG("address: 0x%4.4x, command: 0x%4.4x", flash_address(bank, i, 0x0), target_buffer_get_u32(target, command));

-			target->type->write_memory(target, flash_address(bank, i, 0x0), bank->bus_width, 1, command);

-			bank->sectors[i].is_protected = 1;

-		}

-		else

-		{

-			cfi_command(bank, 0xd0, command);

-			DEBUG("address: 0x%4.4x, command: 0x%4.4x", flash_address(bank, i, 0x0), target_buffer_get_u32(target, command));

-			target->type->write_memory(target, flash_address(bank, i, 0x0), bank->bus_width, 1, command);

-			bank->sectors[i].is_protected = 0;

-		}

-

-		/* instant individual block locking doesn't require reading of the status register */

-		if (!(pri_ext->feature_support & 0x20))

-		{

-			/* Clear lock bits operation may take up to 1.4s */

-			cfi_intel_wait_status_busy(bank, 1400);

-		}

-		else

-		{

-			u8 block_status;

-			/* read block lock bit, to verify status */

-			cfi_command(bank, 0x90, command);

-			target->type->write_memory(target, flash_address(bank, 0, 0x55), bank->bus_width, 1, command);

-			block_status = cfi_get_u8(bank, i, 0x2);

-

-			if ((block_status & 0x1) != set)

-			{

-				ERROR("couldn't change block lock status (set = %i, block_status = 0x%2.2x)", set, block_status);

-				cfi_command(bank, 0x70, command);

-				target->type->write_memory(target, flash_address(bank, 0, 0x55), bank->bus_width, 1, command);

-				cfi_intel_wait_status_busy(bank, 10);

-

-				if (retry > 10)

-					return ERROR_FLASH_OPERATION_FAILED;

-				else

-				{

-					i--;

-					retry++;

-				}

-			}

-		}

-	}

-

-	/* if the device doesn't support individual block lock bits set/clear,

-	 * all blocks have been unlocked in parallel, so we set those that should be protected

-	 */

-	if ((!set) && (!(pri_ext->feature_support & 0x20)))

-	{

-		for (i = 0; i < bank->num_sectors; i++)

-		{

-			if (bank->sectors[i].is_protected == 1)

-			{

-				cfi_intel_clear_status_register(bank);

-

-				cfi_command(bank, 0x60, command);

-				target->type->write_memory(target, flash_address(bank, i, 0x0), bank->bus_width, 1, command);

-

-				cfi_command(bank, 0x01, command);

-				target->type->write_memory(target, flash_address(bank, i, 0x0), bank->bus_width, 1, command);

-

-				cfi_intel_wait_status_busy(bank, 100);

-			}

-		}

-	}

-

-	cfi_command(bank, 0xff, command);

-	target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);

-

-	return ERROR_OK;

-}

-

-int cfi_protect(struct flash_bank_s *bank, int set, int first, int last)

-{

-	cfi_flash_bank_t *cfi_info = bank->driver_priv;

-

-	if (bank->target->state != TARGET_HALTED)

-	{

-		return ERROR_TARGET_NOT_HALTED;

-	}

-

-	if ((first < 0) || (last < first) || (last >= bank->num_sectors))

-	{

-		return ERROR_FLASH_SECTOR_INVALID;

-	}

-

-	if (cfi_info->qry[0] != 'Q')

-		return ERROR_FLASH_BANK_NOT_PROBED;

-

-	switch(cfi_info->pri_id)

-	{

-		case 1:

-		case 3:

-			cfi_intel_protect(bank, set, first, last);

-			break;

-		default:

-			ERROR("cfi primary command set %i unsupported", cfi_info->pri_id);

-			break;

-	}

-

-	return ERROR_OK;

-}

-

-/* FIXME Replace this by a simple memcpy() - still unsure about sideeffects */

-static void cfi_add_byte(struct flash_bank_s *bank, u8 *word, u8 byte)

-{

-	//target_t *target = bank->target;

-

-	int i;

-

-	// NOTE:

-	// The data to flash must not be changed in endian! We write a bytestrem in

-	// target byte order already. Only the control and status byte lane of the flash

-	// WSM is interpreted by the CPU in different ways, when read a u16 or u32

-	// word (data seems to be in the upper or lower byte lane for u16 accesses).

-

-	//if (target->endianness == TARGET_LITTLE_ENDIAN)

-	//{

-		/* shift bytes */

-		for (i = 0; i < bank->bus_width - 1; i++)

-			word[i] = word[i + 1];

-		word[bank->bus_width - 1] = byte;

-	//}

-	//else

-	//{

-	//	/* shift bytes */

-	//	for (i = bank->bus_width - 1; i > 0; i--)

-	//		word[i] = word[i - 1];

-	//	word[0] = byte;

-	//}

-}

-

-/* Convert code image to target endian */

-/* FIXME create general block conversion fcts in target.c?) */ static

-void cfi_fix_code_endian(target_t *target, u32 *dest, const u32 *src, u32 count)

-{

-	u32 i;

-	for (i=0; i< count; i++)

-	{

-		target_buffer_set_u32(target, (u8*)dest, *src);

-		dest++;

-		src++;

-	}

-}

-

-int cfi_intel_write_block(struct flash_bank_s *bank, u8 *buffer, u32 address, u32 count)

-{

-	cfi_flash_bank_t *cfi_info = bank->driver_priv;

-	target_t *target = bank->target;

-	reg_param_t reg_params[7];

-	armv4_5_algorithm_t armv4_5_info;

-	working_area_t *source;

-	u32 buffer_size = 32768;

-	u8 write_command_buf[CFI_MAX_BUS_WIDTH];

-	u8 busy_pattern_buf[CFI_MAX_BUS_WIDTH];

-	u8 error_pattern_buf[CFI_MAX_BUS_WIDTH];

-	u32 write_command_val, busy_pattern_val, error_pattern_val;

-

-	/* algorithm register usage:

-	 * r0: source address (in RAM)

-	 * r1: target address (in Flash)

-	 * r2: count

-	 * r3: flash write command

-	 * r4: status byte (returned to host)

-	 * r5: busy test pattern

-	 * r6: error test pattern

-	 */

-

-	static const u32 word_32_code[] = {

-		0xe4904004,   /* loop:	ldr r4, [r0], #4 */

-		0xe5813000,   /* 		str r3, [r1] */

-		0xe5814000,   /* 		str r4, [r1] */

-		0xe5914000,   /* busy:  ldr r4, [r1] */

-		0xe0047005,   /*		and r7, r4, r5 */

-		0xe1570005,   /*		cmp r7, r5 */

-		0x1afffffb,   /*		bne busy */

-		0xe1140006,   /* 		tst r4, r6 */

-		0x1a000003,   /*		bne done */

-		0xe2522001,   /*		subs r2, r2, #1 */

-		0x0a000001,   /* 		beq done */

-		0xe2811004,   /*		add r1, r1 #4 */

-		0xeafffff2,   /* 		b loop */

-		0xeafffffe    /* done:	b -2 */

-	};

-

-	static const u32 word_16_code[] = {

-		0xe0d040b2,   /* loop:	ldrh r4, [r0], #2 */

-		0xe1c130b0,   /* 		strh r3, [r1] */

-		0xe1c140b0,   /* 		strh r4, [r1] */

-		0xe1d140b0,   /* busy	ldrh r4, [r1] */

-		0xe0047005,   /*		and r7, r4, r5 */

-		0xe1570005,   /*		cmp r7, r5 */

-		0x1afffffb,   /*		bne busy */

-		0xe1140006,   /* 		tst r4, r6 */

-		0x1a000003,   /*		bne done */

-		0xe2522001,   /*		subs r2, r2, #1 */

-		0x0a000001,   /* 		beq done */

-		0xe2811002,   /*		add r1, r1 #2 */

-		0xeafffff2,   /* 		b loop */

-		0xeafffffe    /* done:	b -2 */

-	};

-

-	static const u32 word_8_code[] = {

-		0xe4d04001,   /* loop:	ldrb r4, [r0], #1 */

-		0xe5c13000,   /* 		strb r3, [r1] */

-		0xe5c14000,   /* 		strb r4, [r1] */

-		0xe5d14000,   /* busy	ldrb r4, [r1] */

-		0xe0047005,   /*		and r7, r4, r5 */

-		0xe1570005,   /*		cmp r7, r5 */

-		0x1afffffb,   /*		bne busy */

-		0xe1140006,   /* 		tst r4, r6 */

-		0x1a000003,   /*		bne done */

-		0xe2522001,   /*		subs r2, r2, #1 */

-		0x0a000001,   /* 		beq done */

-		0xe2811001,   /*		add r1, r1 #1 */

-		0xeafffff2,   /* 		b loop */

-		0xeafffffe    /* done:	b -2 */

-	};

-	u32 target_code[CFI_MAX_INTEL_CODESIZE];

-	const u32 *target_code_src;

-	int target_code_size;

-	int retval = ERROR_OK;

-

-

-	cfi_intel_clear_status_register(bank);

-

-	armv4_5_info.common_magic = ARMV4_5_COMMON_MAGIC;

-	armv4_5_info.core_mode = ARMV4_5_MODE_SVC;

-	armv4_5_info.core_state = ARMV4_5_STATE_ARM;

-

-	/* If we are setting up the write_algorith, we need target_code_src */

-	/* if not we only need target_code_size.														*/

-	/* 																																	*/

-	/* However, we don't want to create multiple code paths, so we			*/

-	/* do the unecessary evaluation of target_code_src, which the 			*/

-	/* compiler will probably nicely optimize away if not needed				*/

-

-	/* prepare algorithm code for target endian */

-	switch (bank->bus_width)

-	{

-	case 1 :

-		target_code_src = word_8_code;

-		target_code_size = sizeof(word_8_code);

-		break;

-	case 2 :

-		target_code_src = word_16_code;

-		target_code_size = sizeof(word_16_code);

-		break;

-	case 4 :

-		target_code_src = word_32_code;

-		target_code_size = sizeof(word_32_code);

-		break;

-	default:

-		ERROR("Unsupported bank buswidth %d, can't do block memory writes", bank->bus_width);

-		return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;

-	}

-

-	/* flash write code */

-	if (!cfi_info->write_algorithm)

-	{

-		if ( target_code_size > sizeof(target_code) )

-		{

-			WARNING("Internal error - target code buffer to small. Increase CFI_MAX_INTEL_CODESIZE and recompile.");

-			return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;

-		}

-		cfi_fix_code_endian(target, target_code, target_code_src, target_code_size);

-

-		/* Get memory for block write handler */

-		retval = target_alloc_working_area(target, target_code_size, &cfi_info->write_algorithm);

-		if (retval != ERROR_OK)

-		{

-			WARNING("No working area available, can't do block memory writes");

-			return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;

-		};

-

-		/* write algorithm code to working area */

-		retval = target_write_buffer(target, cfi_info->write_algorithm->address, target_code_size, (u8*)target_code);

-		if (retval != ERROR_OK)

-		{

-			ERROR("Unable to write block write code to target");

-			goto cleanup;

-		}

-	}

-

-	/* Get a workspace buffer for the data to flash starting with 32k size.

-	   Half size until buffer would be smaller 256 Bytem then fail back */

-	/* FIXME Why 256 bytes, why not 32 bytes (smallest flash write page */

-	while (target_alloc_working_area(target, buffer_size, &source) != ERROR_OK)

-	{

-		buffer_size /= 2;

-		if (buffer_size <= 256)

-		{

-			WARNING("no large enough working area available, can't do block memory writes");

-			retval = ERROR_TARGET_RESOURCE_NOT_AVAILABLE;

-			goto cleanup;

-		}

-	};

-

-	/* setup algo registers */

-	init_reg_param(&reg_params[0], "r0", 32, PARAM_OUT);

-	init_reg_param(&reg_params[1], "r1", 32, PARAM_OUT);

-	init_reg_param(&reg_params[2], "r2", 32, PARAM_OUT);

-	init_reg_param(&reg_params[3], "r3", 32, PARAM_OUT);

-	init_reg_param(&reg_params[4], "r4", 32, PARAM_IN);

-	init_reg_param(&reg_params[5], "r5", 32, PARAM_OUT);

-	init_reg_param(&reg_params[6], "r6", 32, PARAM_OUT);

-

-	/* prepare command and status register patterns */

-	cfi_command(bank, 0x40, write_command_buf);

-	cfi_command(bank, 0x80, busy_pattern_buf);

-	cfi_command(bank, 0x7e, error_pattern_buf);

-

-	switch (bank->bus_width)

-	{

-	case 1 :

-		write_command_val = write_command_buf[0];

-		busy_pattern_val = busy_pattern_buf[0];

-		error_pattern_val = error_pattern_buf[0];

-		break;

-	case 2 :

-		write_command_val = target_buffer_get_u16(target, write_command_buf);

-		busy_pattern_val = target_buffer_get_u16(target, busy_pattern_buf);

-		error_pattern_val = target_buffer_get_u16(target, error_pattern_buf);

-		break;

-	case 4 :

-		write_command_val = target_buffer_get_u32(target, write_command_buf);

-		busy_pattern_val = target_buffer_get_u32(target, busy_pattern_buf);

-		error_pattern_val = target_buffer_get_u32(target, error_pattern_buf);

-		break;

-	default :

-		ERROR("Unsupported bank buswidth %d, can't do block memory writes", bank->bus_width);

-		retval = ERROR_TARGET_RESOURCE_NOT_AVAILABLE;

-		goto cleanup;

-	}

-

-	INFO("Using target buffer at 0x%08x and of size 0x%04x", source->address, buffer_size );

-

-	/* Programming main loop */

-	while (count > 0)

-	{

-		u32 thisrun_count = (count > buffer_size) ? buffer_size : count;

-		u32 wsm_error;

-

-		target_write_buffer(target, source->address, thisrun_count, buffer);

-

-		buf_set_u32(reg_params[0].value, 0, 32, source->address);

-		buf_set_u32(reg_params[1].value, 0, 32, address);

-		buf_set_u32(reg_params[2].value, 0, 32, thisrun_count / bank->bus_width);

-

-		buf_set_u32(reg_params[3].value, 0, 32, write_command_val);

-		buf_set_u32(reg_params[5].value, 0, 32, busy_pattern_val);

-		buf_set_u32(reg_params[6].value, 0, 32, error_pattern_val);

-

-		INFO("Write 0x%04x bytes to flash at 0x%08x", thisrun_count, address );

-

-		/* Execute algorithm, assume breakpoint for last instruction */

-		retval = target->type->run_algorithm(target, 0, NULL, 7, reg_params,

-			cfi_info->write_algorithm->address,

-			cfi_info->write_algorithm->address + target_code_size - sizeof(u32),

-			10000, /* 10s should be enough for max. 32k of data */

-			&armv4_5_info);

-

-		/* On failure try a fall back to direct word writes */

-		if (retval != ERROR_OK)

-		{

-			cfi_intel_clear_status_register(bank);

-			ERROR("Execution of flash algorythm failed. Can't fall back. Please report.");

-			retval = ERROR_FLASH_OPERATION_FAILED;

-			//retval = ERROR_TARGET_RESOURCE_NOT_AVAILABLE;

-			// FIXME To allow fall back or recovery, we must save the actual status

-			//       somewhere, so that a higher level code can start recovery.

-			goto cleanup;

-		}

-

-		/* Check return value from algo code */

-		wsm_error = buf_get_u32(reg_params[4].value, 0, 32) & error_pattern_val;

-		if (wsm_error)

-		{

-			/* read status register (outputs debug inforation) */

-			cfi_intel_wait_status_busy(bank, 100);

-			cfi_intel_clear_status_register(bank);

-			retval = ERROR_FLASH_OPERATION_FAILED;

-			goto cleanup;

-		}

-

-		buffer += thisrun_count;

-		address += thisrun_count;

-		count -= thisrun_count;

-	}

-

-	/* free up resources */

-cleanup:

-	if (source)

-		target_free_working_area(target, source);

-

-	if (cfi_info->write_algorithm)

-	{

-		target_free_working_area(target, cfi_info->write_algorithm);

-		cfi_info->write_algorithm = NULL;

-	}

-

-	destroy_reg_param(&reg_params[0]);

-	destroy_reg_param(&reg_params[1]);

-	destroy_reg_param(&reg_params[2]);

-	destroy_reg_param(&reg_params[3]);

-	destroy_reg_param(&reg_params[4]);

-	destroy_reg_param(&reg_params[5]);

-	destroy_reg_param(&reg_params[6]);

-

-	return retval;

-}

-

-int cfi_spansion_write_block(struct flash_bank_s *bank, u8 *buffer, u32 address, u32 count)

-{

-	cfi_flash_bank_t *cfi_info = bank->driver_priv;

-	cfi_spansion_pri_ext_t *pri_ext = cfi_info->pri_ext;

-	target_t *target = bank->target;

-	reg_param_t reg_params[10];

-	armv4_5_algorithm_t armv4_5_info;

-	working_area_t *source;

-	u32 buffer_size = 32768;

-	u8 write_command[CFI_MAX_BUS_WIDTH];

-	u32 status;

-	int i;

-	int retval;

-	int exit_code = ERROR_OK;

-

-	/* input parameters - */

-	/*	R0 = source address */

-	/*	R1 = destination address */

-	/*	R2 = number of writes */

-	/*	R3 = flash write command */

-	/*	R4 = constant to mask DQ7 bits (also used for Dq5 with shift) */

-	/* output parameters - */

-	/*	R5 = 0x80 ok 0x00 bad */

-	/* temp registers - */

-	/*	R6 = value read from flash to test status */

-	/*	R7 = holding register */

-	/* unlock registers - */

-	/*  R8 = unlock1_addr */

-	/*  R9 = unlock1_cmd */

-	/*  R10 = unlock2_addr */

-	/*  R11 = unlock2_cmd */

-

-	u32 word_32_code[] = {

-						/* 00008100 <sp_32_code>:		*/

-		0xe4905004,		/* ldr	r5, [r0], #4			*/

-		0xe5889000, 	/* str	r9, [r8]				*/

-		0xe58ab000, 	/* str	r11, [r10]				*/

-		0xe5883000, 	/* str	r3, [r8]				*/

-		0xe5815000, 	/* str	r5, [r1]				*/

-		0xe1a00000, 	/* nop							*/

-						/*								*/

-						/* 00008110 <sp_32_busy>:		*/

-		0xe5916000, 	/* ldr	r6, [r1]				*/

-		0xe0257006, 	/* eor	r7, r5, r6				*/

-		0xe0147007, 	/* ands	r7, r4, r7				*/

-		0x0a000007, 	/* beq	8140 <sp_32_cont> ; b if DQ7 == Data7 */

-		0xe0166124, 	/* ands	r6, r6, r4, lsr #2		*/

-		0x0afffff9, 	/* beq	8110 <sp_32_busy> ;	b if DQ5 low */

-		0xe5916000, 	/* ldr	r6, [r1]				*/

-		0xe0257006, 	/* eor	r7, r5, r6				*/

-		0xe0147007, 	/* ands	r7, r4, r7				*/

-		0x0a000001, 	/* beq	8140 <sp_32_cont> ; b if DQ7 == Data7 */

-		0xe3a05000, 	/* mov	r5, #0	; 0x0 - return 0x00, error */

-		0x1a000004, 	/* bne	8154 <sp_32_done>		*/

-						/*								*/

-				/* 00008140 <sp_32_cont>:				*/

-		0xe2522001, 	/* subs	r2, r2, #1	; 0x1		*/

-		0x03a05080, 	/* moveq	r5, #128	; 0x80	*/

-		0x0a000001, 	/* beq	8154 <sp_32_done>		*/

-		0xe2811004, 	/* add	r1, r1, #4	; 0x4		*/

-		0xeaffffe8, 	/* b	8100 <sp_32_code>		*/

-						/*								*/

-						/* 00008154 <sp_32_done>:		*/

-		0xeafffffe		/* b	8154 <sp_32_done>		*/

-		};

-

-		u32 word_16_code[] = {

-				/* 00008158 <sp_16_code>:              */

-		0xe0d050b2, 	/* ldrh	r5, [r0], #2		   */

-		0xe1c890b0, 	/* strh	r9, [r8]				*/

-		0xe1cab0b0, 	/* strh	r11, [r10]				*/

-		0xe1c830b0, 	/* strh	r3, [r8]				*/

-		0xe1c150b0, 	/* strh	r5, [r1]		       */

-		0xe1a00000, 	/* nop			(mov r0,r0)    */

-				/* 				       */

-				/* 00008168 <sp_16_busy>:	       */

-		0xe1d160b0, 	/* ldrh	r6, [r1]		       */

-		0xe0257006, 	/* eor	r7, r5, r6		       */

-		0xe0147007, 	/* ands	r7, r4, r7		       */

-		0x0a000007, 	/* beq	8198 <sp_16_cont>	       */

-		0xe0166124, 	/* ands	r6, r6, r4, lsr #2	       */

-		0x0afffff9, 	/* beq	8168 <sp_16_busy>	       */

-		0xe1d160b0, 	/* ldrh	r6, [r1]		       */

-		0xe0257006, 	/* eor	r7, r5, r6		       */

-		0xe0147007, 	/* ands	r7, r4, r7		       */

-		0x0a000001, 	/* beq	8198 <sp_16_cont>	       */

-		0xe3a05000, 	/* mov	r5, #0	; 0x0		       */

-		0x1a000004, 	/* bne	81ac <sp_16_done>	       */

-				/* 				       */

-				/* 00008198 <sp_16_cont>:	       */

-		0xe2522001, 	/* subs	r2, r2, #1	; 0x1	       */

-		0x03a05080, 	/* moveq	r5, #128	; 0x80 */

-		0x0a000001, 	/* beq	81ac <sp_16_done>	       */

-		0xe2811002, 	/* add	r1, r1, #2	; 0x2	       */

-		0xeaffffe8, 	/* b	8158 <sp_16_code>	       */

-				/* 				       */

-				/* 000081ac <sp_16_done>:	       */

-		0xeafffffe 	/* b	81ac <sp_16_done>              */

-		};

-

-		u32 word_8_code[] = {

-				/* 000081b0 <sp_16_code_end>:          */

-		0xe4d05001, 	/* ldrb	r5, [r0], #1		       */

-		0xe5c89000, 	/* strb	r9, [r8]				*/

-		0xe5cab000, 	/* strb	r11, [r10]				*/

-		0xe5c83000, 	/* strb	r3, [r8]				*/

-		0xe5c15000, 	/* strb	r5, [r1]		       */

-		0xe1a00000, 	/* nop			(mov r0,r0)    */

-				/* 				       */

-				/* 000081c0 <sp_8_busy>:	       */

-		0xe5d16000, 	/* ldrb	r6, [r1]		       */

-		0xe0257006, 	/* eor	r7, r5, r6		       */

-		0xe0147007, 	/* ands	r7, r4, r7		       */

-		0x0a000007, 	/* beq	81f0 <sp_8_cont>	       */

-		0xe0166124, 	/* ands	r6, r6, r4, lsr #2	       */

-		0x0afffff9, 	/* beq	81c0 <sp_8_busy>	       */

-		0xe5d16000, 	/* ldrb	r6, [r1]		       */

-		0xe0257006, 	/* eor	r7, r5, r6		       */

-		0xe0147007, 	/* ands	r7, r4, r7		       */

-		0x0a000001, 	/* beq	81f0 <sp_8_cont>	       */

-		0xe3a05000, 	/* mov	r5, #0	; 0x0		       */

-		0x1a000004, 	/* bne	8204 <sp_8_done>	       */

-				/* 				       */

-				/* 000081f0 <sp_8_cont>:	       */

-		0xe2522001, 	/* subs	r2, r2, #1	; 0x1	       */

-		0x03a05080, 	/* moveq	r5, #128	; 0x80 */

-		0x0a000001, 	/* beq	8204 <sp_8_done>	       */

-		0xe2811001, 	/* add	r1, r1, #1	; 0x1	       */

-		0xeaffffe8, 	/* b	81b0 <sp_16_code_end>	       */

-				/* 				       */

-				/* 00008204 <sp_8_done>:	       */

-		0xeafffffe 	/* b	8204 <sp_8_done>               */

-	};

-

-	armv4_5_info.common_magic = ARMV4_5_COMMON_MAGIC;

-	armv4_5_info.core_mode = ARMV4_5_MODE_SVC;

-	armv4_5_info.core_state = ARMV4_5_STATE_ARM;

-

-	/* flash write code */

-	if (!cfi_info->write_algorithm)

-	{

-		u8 *code_p;

-

-		/* convert bus-width dependent algorithm code to correct endiannes */

-		if (bank->bus_width == 1)

-		{

-			code_p = malloc(24 * 4);

-

-			for (i = 0; i < 24; i++)

-				target_buffer_set_u32(target, code_p + (i*4), word_8_code[i]);

-		}

-		else if (bank->bus_width == 2)

-		{

-			code_p = malloc(24 * 4);

-

-			for (i = 0; i < 24; i++)

-				target_buffer_set_u32(target, code_p + (i*4), word_16_code[i]);

-		}

-		else if (bank->bus_width == 4)

-		{

-			code_p = malloc(24 * 4);

-

-			for (i = 0; i < 24; i++)

-				target_buffer_set_u32(target, code_p + (i*4), word_32_code[i]);

-		}

-		else

-		{

-			return ERROR_FLASH_OPERATION_FAILED;

-		}

-

-		/* allocate working area */

-		retval=target_alloc_working_area(target, 24 * 4,

-				&cfi_info->write_algorithm);

-		if (retval != ERROR_OK)

-		{

-			return retval;

-		}

-

-		/* write algorithm code to working area */

-		target_write_buffer(target, cfi_info->write_algorithm->address, 24 * 4, code_p);

-

-		free(code_p);

-	}

-

-	while (target_alloc_working_area(target, buffer_size, &source) != ERROR_OK)

-	{

-		buffer_size /= 2;

-		if (buffer_size <= 256)

-		{

-			/* if we already allocated the writing code, but failed to get a buffer, free the algorithm */

-			if (cfi_info->write_algorithm)

-				target_free_working_area(target, cfi_info->write_algorithm);

-

-			WARNING("not enough working area available, can't do block memory writes");

-			return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;

-		}

-	};

-

-	init_reg_param(&reg_params[0], "r0", 32, PARAM_OUT);

-	init_reg_param(&reg_params[1], "r1", 32, PARAM_OUT);

-	init_reg_param(&reg_params[2], "r2", 32, PARAM_OUT);

-	init_reg_param(&reg_params[3], "r3", 32, PARAM_OUT);

-	init_reg_param(&reg_params[4], "r4", 32, PARAM_OUT);

-	init_reg_param(&reg_params[5], "r5", 32, PARAM_IN);

-	init_reg_param(&reg_params[6], "r8", 32, PARAM_OUT);

-	init_reg_param(&reg_params[7], "r9", 32, PARAM_OUT);

-	init_reg_param(&reg_params[8], "r10", 32, PARAM_OUT);

-	init_reg_param(&reg_params[9], "r11", 32, PARAM_OUT);

-

-	while (count > 0)

-	{

-		u32 thisrun_count = (count > buffer_size) ? buffer_size : count;

-

-		target_write_buffer(target, source->address, thisrun_count, buffer);

-

-		buf_set_u32(reg_params[0].value, 0, 32, source->address);

-		buf_set_u32(reg_params[1].value, 0, 32, address);

-		buf_set_u32(reg_params[2].value, 0, 32, thisrun_count / bank->bus_width);

-		cfi_command(bank, 0xA0, write_command);

-		buf_set_u32(reg_params[3].value, 0, 32, buf_get_u32(write_command, 0, 32));

-		cfi_command(bank, 0x80, write_command);

-		buf_set_u32(reg_params[4].value, 0, 32, buf_get_u32(write_command, 0, 32));

-		buf_set_u32(reg_params[6].value, 0, 32, flash_address(bank, 0, pri_ext->_unlock1));

-		buf_set_u32(reg_params[7].value, 0, 32, 0xaa);

-		buf_set_u32(reg_params[8].value, 0, 32, flash_address(bank, 0, pri_ext->_unlock2));

-		buf_set_u32(reg_params[9].value, 0, 32, 0x55);

-

-		retval = target->type->run_algorithm(target, 0, NULL, 10, reg_params,

-						     cfi_info->write_algorithm->address,

-						     cfi_info->write_algorithm->address + ((24 * 4) - 4),

-						     10000, &armv4_5_info);

-

-		status = buf_get_u32(reg_params[5].value, 0, 32);

-

-		if ((retval != ERROR_OK) || status != 0x80)

-		{

-			DEBUG("status: 0x%x", status);

-			exit_code = ERROR_FLASH_OPERATION_FAILED;

-			break;

-		}

-

-		buffer += thisrun_count;

-		address += thisrun_count;

-		count -= thisrun_count;

-	}

-

-	target_free_working_area(target, source);

-

-	destroy_reg_param(&reg_params[0]);

-	destroy_reg_param(&reg_params[1]);

-	destroy_reg_param(&reg_params[2]);

-	destroy_reg_param(&reg_params[3]);

-	destroy_reg_param(&reg_params[4]);

-	destroy_reg_param(&reg_params[5]);

-	destroy_reg_param(&reg_params[6]);

-	destroy_reg_param(&reg_params[7]);

-	destroy_reg_param(&reg_params[8]);

-	destroy_reg_param(&reg_params[9]);

-

-	return exit_code;

-}

-

-int cfi_intel_write_word(struct flash_bank_s *bank, u8 *word, u32 address)

-{

-	cfi_flash_bank_t *cfi_info = bank->driver_priv;

-	target_t *target = bank->target;

-	u8 command[8];

-

-	cfi_intel_clear_status_register(bank);

-	cfi_command(bank, 0x40, command);

-	target->type->write_memory(target, address, bank->bus_width, 1, command);

-

-	target->type->write_memory(target, address, bank->bus_width, 1, word);

-

-	if (cfi_intel_wait_status_busy(bank, 1000 * (1 << cfi_info->word_write_timeout_max)) != 0x80)

-	{

-		cfi_command(bank, 0xff, command);

-		target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);

-

-		ERROR("couldn't write word at base 0x%x, address %x", bank->base, address);

-		return ERROR_FLASH_OPERATION_FAILED;

-	}

-

-	return ERROR_OK;

-}

-

-int cfi_intel_write_words(struct flash_bank_s *bank, u8 *word, u32 wordcount, u32 address)

-{

-	cfi_flash_bank_t *cfi_info = bank->driver_priv;

-	target_t *target = bank->target;

-	u8 command[8];

-

-	/* Calculate buffer size and boundary mask */

-	u32 buffersize = 1UL << cfi_info->max_buf_write_size;

-	u32 buffermask = buffersize-1;

-	u32 bufferwsize;

-

-	/* Check for valid range */

-	if (address & buffermask)

-	{

-		ERROR("Write address at base 0x%x, address %x not aligned to 2^%d boundary", bank->base, address, cfi_info->max_buf_write_size);

-		return ERROR_FLASH_OPERATION_FAILED;

-	}

-	switch(bank->chip_width)

-	{

-	case 4 : bufferwsize = buffersize / 4; break;

-	case 2 : bufferwsize = buffersize / 2; break;

-	case 1 : bufferwsize = buffersize; break;

-	default:

-		ERROR("Unsupported chip width %d", bank->chip_width);

-		return ERROR_FLASH_OPERATION_FAILED;

-	}

-

-	/* Check for valid size */

-	if (wordcount > bufferwsize)

-	{

-		ERROR("Number of data words %d exceeds available buffersize %d", wordcount, buffersize);

-		return ERROR_FLASH_OPERATION_FAILED;

-	}

-

-	/* Write to flash buffer */

-	cfi_intel_clear_status_register(bank);

-

-	/* Initiate buffer operation _*/

-	cfi_command(bank, 0xE8, command);

-	target->type->write_memory(target, address, bank->bus_width, 1, command);

-	if (cfi_intel_wait_status_busy(bank, 1000 * (1 << cfi_info->buf_write_timeout_max)) != 0x80)

-	{

-		cfi_command(bank, 0xff, command);

-		target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);

-

-		ERROR("couldn't start buffer write operation at base 0x%x, address %x", bank->base, address);

-		return ERROR_FLASH_OPERATION_FAILED;

-	}

-

-	/* Write buffer wordcount-1 and data words */

-	cfi_command(bank, bufferwsize-1, command);

-	target->type->write_memory(target, address, bank->bus_width, 1, command);

-

-	target->type->write_memory(target, address, bank->bus_width, bufferwsize, word);

-

-	/* Commit write operation */

-	cfi_command(bank, 0xd0, command);

-	target->type->write_memory(target, address, bank->bus_width, 1, command);

-	if (cfi_intel_wait_status_busy(bank, 1000 * (1 << cfi_info->buf_write_timeout_max)) != 0x80)

-	{

-		cfi_command(bank, 0xff, command);

-		target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);

-

-		ERROR("Buffer write at base 0x%x, address %x failed.", bank->base, address);

-		return ERROR_FLASH_OPERATION_FAILED;

-	}

-

-	return ERROR_OK;

-}

-

-int cfi_spansion_write_word(struct flash_bank_s *bank, u8 *word, u32 address)

-{

-	cfi_flash_bank_t *cfi_info = bank->driver_priv;

-	cfi_spansion_pri_ext_t *pri_ext = cfi_info->pri_ext;

-	target_t *target = bank->target;

-	u8 command[8];

-

-	cfi_command(bank, 0xaa, command);

-	target->type->write_memory(target, flash_address(bank, 0, pri_ext->_unlock1), bank->bus_width, 1, command);

-

-	cfi_command(bank, 0x55, command);

-	target->type->write_memory(target, flash_address(bank, 0, pri_ext->_unlock2), bank->bus_width, 1, command);

-

-	cfi_command(bank, 0xa0, command);

-	target->type->write_memory(target, flash_address(bank, 0, pri_ext->_unlock1), bank->bus_width, 1, command);

-

-	target->type->write_memory(target, address, bank->bus_width, 1, word);

-

-	if (cfi_spansion_wait_status_busy(bank, 1000 * (1 << cfi_info->word_write_timeout_max)) != ERROR_OK)

-	{

-		cfi_command(bank, 0xf0, command);

-		target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);

-

-		ERROR("couldn't write word at base 0x%x, address %x", bank->base, address);

-		return ERROR_FLASH_OPERATION_FAILED;

-	}

-

-	return ERROR_OK;

-}

-

-int cfi_write_word(struct flash_bank_s *bank, u8 *word, u32 address)

-{

-	cfi_flash_bank_t *cfi_info = bank->driver_priv;

-

-	switch(cfi_info->pri_id)

-	{

-		case 1:

-		case 3:

-			return cfi_intel_write_word(bank, word, address);

-			break;

-		case 2:

-			return cfi_spansion_write_word(bank, word, address);

-			break;

-		default:

-			ERROR("cfi primary command set %i unsupported", cfi_info->pri_id);

-			break;

-	}

-

-	return ERROR_FLASH_OPERATION_FAILED;

-}

-

-int cfi_write_words(struct flash_bank_s *bank, u8 *word, u32 wordcount, u32 address)

-{

-	cfi_flash_bank_t *cfi_info = bank->driver_priv;

-

-	switch(cfi_info->pri_id)

-	{

-		case 1:

-		case 3:

-			return cfi_intel_write_words(bank, word, wordcount, address);

-			break;

-		case 2:

-			//return cfi_spansion_write_words(bank, word, address);

-			ERROR("cfi primary command set %i unimplemented - FIXME", cfi_info->pri_id);

-			break;

-		default:

-			ERROR("cfi primary command set %i unsupported", cfi_info->pri_id);

-			break;

-	}

-

-	return ERROR_FLASH_OPERATION_FAILED;

-}

-

-int cfi_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count)

-{

-	cfi_flash_bank_t *cfi_info = bank->driver_priv;

-	target_t *target = bank->target;

-	u32 address = bank->base + offset;	/* address of first byte to be programmed */

-	u32 write_p, copy_p;

-	int align;	/* number of unaligned bytes */

-	int blk_count; /* number of bus_width bytes for block copy */

-	u8 current_word[CFI_MAX_BUS_WIDTH * 4];	/* word (bus_width size) currently being programmed */

-	int i;

-	int retval;

-

-	if (offset + count > bank->size)

-		return ERROR_FLASH_DST_OUT_OF_BANK;

-

-	if (cfi_info->qry[0] != 'Q')

-		return ERROR_FLASH_BANK_NOT_PROBED;

-

-	/* start at the first byte of the first word (bus_width size) */

-	write_p = address & ~(bank->bus_width - 1);

-	if ((align = address - write_p) != 0)

-	{

-		INFO("Fixup %d unaligned head bytes", align );

-

-		for (i = 0; i < bank->bus_width; i++)

-			current_word[i] = 0;

-		copy_p = write_p;

-

-		/* copy bytes before the first write address */

-		for (i = 0; i < align; ++i, ++copy_p)

-		{

-			u8 byte;

-			target->type->read_memory(target, copy_p, 1, 1, &byte);

-			cfi_add_byte(bank, current_word, byte);

-		}

-

-		/* add bytes from the buffer */

-		for (; (i < bank->bus_width) && (count > 0); i++)

-		{

-			cfi_add_byte(bank, current_word, *buffer++);

-			count--;

-			copy_p++;

-		}

-

-		/* if the buffer is already finished, copy bytes after the last write address */

-		for (; (count == 0) && (i < bank->bus_width); ++i, ++copy_p)

-		{

-			u8 byte;

-			target->type->read_memory(target, copy_p, 1, 1, &byte);

-			cfi_add_byte(bank, current_word, byte);

-		}

-

-		retval = cfi_write_word(bank, current_word, write_p);

-		if (retval != ERROR_OK)

-			return retval;

-		write_p = copy_p;

-	}

-

-	/* handle blocks of bus_size aligned bytes */

-	blk_count = count & ~(bank->bus_width - 1); /* round down, leave tail bytes */

-	switch(cfi_info->pri_id)

-	{

-		/* try block writes (fails without working area) */

-		case 1:

-		case 3:

-			retval = cfi_intel_write_block(bank, buffer, write_p, blk_count);

-			break;

-		case 2:

-			retval = cfi_spansion_write_block(bank, buffer, write_p, blk_count);

-			break;

-		default:

-			ERROR("cfi primary command set %i unsupported", cfi_info->pri_id);

-			retval = ERROR_FLASH_OPERATION_FAILED;

-			break;

-	}

-	if (retval == ERROR_OK)

-	{

-		/* Increment pointers and decrease count on succesful block write */

-		buffer += blk_count;

-		write_p += blk_count;

-		count -= blk_count;

-	}

-	else

-	{

-		if (retval == ERROR_TARGET_RESOURCE_NOT_AVAILABLE)

-		{

-			u32 buffersize = 1UL << cfi_info->max_buf_write_size;

-			u32 buffermask = buffersize-1;

-			u32 bufferwsize;

-

-			switch(bank->chip_width)

-			{

-			case 4 : bufferwsize = buffersize / 4; break;

-			case 2 : bufferwsize = buffersize / 2; break;

-			case 1 : bufferwsize = buffersize; break;

-			default:

-				ERROR("Unsupported chip width %d", bank->chip_width);

-				return ERROR_FLASH_OPERATION_FAILED;

-			}

-

-			/* fall back to memory writes */

-			while (count > bank->bus_width)

-			{

-				if ((write_p & 0xff) == 0)

-				{

-					INFO("Programming at %08x, count %08x bytes remaining", write_p, count);

-				}

-#if 0

-				/* NB! this is broken for spansion! */

-				if ((count > bufferwsize) && !(write_p & buffermask))

-				{

-					retval = cfi_write_words(bank, buffer, bufferwsize, write_p);

-					if (retval != ERROR_OK)

-						return retval;

-

-					buffer += buffersize;

-					write_p += buffersize;

-					count -= buffersize;

-				}

-				else

-#endif

-				{

-					for (i = 0; i < bank->bus_width; i++)

-						current_word[i] = 0;

-

-					for (i = 0; i < bank->bus_width; i++)

-					{

-						cfi_add_byte(bank, current_word, *buffer++);

-					}

-

-					retval = cfi_write_word(bank, current_word, write_p);

-					if (retval != ERROR_OK)

-						return retval;

-

-					write_p += bank->bus_width;

-					count -= bank->bus_width;

-				}

-			}

-		}

-		else

-			return retval;

-	}

-

-	/* return to read array mode, so we can read from flash again for padding */

-	cfi_command(bank, 0xf0, current_word);

-	target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, current_word);

-	cfi_command(bank, 0xff, current_word);

-	target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, current_word);

-

-	/* handle unaligned tail bytes */

-	if (count > 0)

-	{

-		INFO("Fixup %d unaligned tail bytes", count );

-

-		copy_p = write_p;

-		for (i = 0; i < bank->bus_width; i++)

-			current_word[i] = 0;

-

-		for (i = 0; (i < bank->bus_width) && (count > 0); ++i, ++copy_p)

-		{

-			cfi_add_byte(bank, current_word, *buffer++);

-			count--;

-		}

-		for (; i < bank->bus_width; ++i, ++copy_p)

-		{

-			u8 byte;

-			target->type->read_memory(target, copy_p, 1, 1, &byte);

-			cfi_add_byte(bank, current_word, byte);

-		}

-		retval = cfi_write_word(bank, current_word, write_p);

-		if (retval != ERROR_OK)

-			return retval;

-	}

-

-	/* return to read array mode */

-	cfi_command(bank, 0xf0, current_word);

-	target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, current_word);

-	cfi_command(bank, 0xff, current_word);

-	target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, current_word);

-

-	return ERROR_OK;

-}

-

-void cfi_fixup_atmel_reversed_erase_regions(flash_bank_t *bank, void *param)

-{

-	cfi_flash_bank_t *cfi_info = bank->driver_priv;

-	cfi_spansion_pri_ext_t *pri_ext = cfi_info->pri_ext;

-

-	pri_ext->_reversed_geometry = 1;

-}

-

-void cfi_fixup_0002_erase_regions(flash_bank_t *bank, void *param)

-{

-	int i;

-	cfi_flash_bank_t *cfi_info = bank->driver_priv;

-	cfi_spansion_pri_ext_t *pri_ext = cfi_info->pri_ext;

-

-	if ((pri_ext->_reversed_geometry) || (pri_ext->TopBottom == 3))

-	{

-		DEBUG("swapping reversed erase region information on cmdset 0002 device");

-

-		for (i = 0; i < cfi_info->num_erase_regions / 2; i++)

-		{

-			int j = (cfi_info->num_erase_regions - 1) - i;

-			u32 swap;

-

-			swap = cfi_info->erase_region_info[i];

-			cfi_info->erase_region_info[i] = cfi_info->erase_region_info[j];

-			cfi_info->erase_region_info[j] = swap;

-		}

-	}

-}

-

-void cfi_fixup_0002_unlock_addresses(flash_bank_t *bank, void *param)

-{

-	cfi_flash_bank_t *cfi_info = bank->driver_priv;

-	cfi_spansion_pri_ext_t *pri_ext = cfi_info->pri_ext;

-	cfi_unlock_addresses_t *unlock_addresses = param;

-

-	pri_ext->_unlock1 = unlock_addresses->unlock1;

-	pri_ext->_unlock2 = unlock_addresses->unlock2;

-}

-

-int cfi_probe(struct flash_bank_s *bank)

-{

-	cfi_flash_bank_t *cfi_info = bank->driver_priv;

-	target_t *target = bank->target;

-	u8 command[8];

-	int num_sectors = 0;

-	int i;

-	int sector = 0;

-	u32 offset = 0;

-	u32 unlock1 = 0x555;

-	u32 unlock2 = 0x2aa;

-

-	cfi_info->probed = 0;

-

-	/* JEDEC standard JESD21C uses 0x5555 and 0x2aaa as unlock addresses,

-	 * while CFI compatible AMD/Spansion flashes use 0x555 and 0x2aa

-	 */

-	if (cfi_info->jedec_probe)

-	{

-		unlock1 = 0x5555;

-		unlock2 = 0x2aaa;

-	}

-

-	/* switch to read identifier codes mode ("AUTOSELECT") */

-	cfi_command(bank, 0xaa, command);

-	target->type->write_memory(target, flash_address(bank, 0, unlock1), bank->bus_width, 1, command);

-	cfi_command(bank, 0x55, command);

-	target->type->write_memory(target, flash_address(bank, 0, unlock2), bank->bus_width, 1, command);

-	cfi_command(bank, 0x90, command);

-	target->type->write_memory(target, flash_address(bank, 0, unlock1), bank->bus_width, 1, command);

-

-	if (bank->chip_width == 1)

-	{

-		u8 manufacturer, device_id;

-		target_read_u8(target, bank->base + 0x0, &manufacturer);

-		target_read_u8(target, bank->base + 0x1, &device_id);

-		cfi_info->manufacturer = manufacturer;

-		cfi_info->device_id = device_id;

-	}

-	else if (bank->chip_width == 2)

-	{

-		target_read_u16(target, bank->base + 0x0, &cfi_info->manufacturer);

-		target_read_u16(target, bank->base + 0x2, &cfi_info->device_id);

-	}

-

-	/* switch back to read array mode */

-	cfi_command(bank, 0xf0, command);

-	target->type->write_memory(target, flash_address(bank, 0, 0x00), bank->bus_width, 1, command);

-	cfi_command(bank, 0xff, command);

-	target->type->write_memory(target, flash_address(bank, 0, 0x00), bank->bus_width, 1, command);

-

-	cfi_fixup(bank, cfi_jedec_fixups);

-

-	/* query only if this is a CFI compatible flash,

-	 * otherwise the relevant info has already been filled in

-	 */

-	if (cfi_info->not_cfi == 0)

-	{

-		/* enter CFI query mode

-		 * according to JEDEC Standard No. 68.01,

-		 * a single bus sequence with address = 0x55, data = 0x98 should put

-		 * the device into CFI query mode.

-		 *

-		 * SST flashes clearly violate this, and we will consider them incompatbile for now

-		 */

-		cfi_command(bank, 0x98, command);

-		target->type->write_memory(target, flash_address(bank, 0, 0x55), bank->bus_width, 1, command);

-

-		cfi_info->qry[0] = cfi_query_u8(bank, 0, 0x10);

-		cfi_info->qry[1] = cfi_query_u8(bank, 0, 0x11);

-		cfi_info->qry[2] = cfi_query_u8(bank, 0, 0x12);

-

-		DEBUG("CFI qry returned: 0x%2.2x 0x%2.2x 0x%2.2x", cfi_info->qry[0], cfi_info->qry[1], cfi_info->qry[2]);

-

-		if ((cfi_info->qry[0] != 'Q') || (cfi_info->qry[1] != 'R') || (cfi_info->qry[2] != 'Y'))

-		{

-			cfi_command(bank, 0xf0, command);

-			target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);

-			cfi_command(bank, 0xff, command);

-			target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);

-			return ERROR_FLASH_BANK_INVALID;

-		}

-

-		cfi_info->pri_id = cfi_query_u16(bank, 0, 0x13);

-		cfi_info->pri_addr = cfi_query_u16(bank, 0, 0x15);

-		cfi_info->alt_id = cfi_query_u16(bank, 0, 0x17);

-		cfi_info->alt_addr = cfi_query_u16(bank, 0, 0x19);

-

-		DEBUG("qry: '%c%c%c', pri_id: 0x%4.4x, pri_addr: 0x%4.4x, alt_id: 0x%4.4x, alt_addr: 0x%4.4x", cfi_info->qry[0], cfi_info->qry[1], cfi_info->qry[2], cfi_info->pri_id, cfi_info->pri_addr, cfi_info->alt_id, cfi_info->alt_addr);

-

-		cfi_info->vcc_min = cfi_query_u8(bank, 0, 0x1b);

-		cfi_info->vcc_max = cfi_query_u8(bank, 0, 0x1c);

-		cfi_info->vpp_min = cfi_query_u8(bank, 0, 0x1d);

-		cfi_info->vpp_max = cfi_query_u8(bank, 0, 0x1e);

-		cfi_info->word_write_timeout_typ = cfi_query_u8(bank, 0, 0x1f);

-		cfi_info->buf_write_timeout_typ = cfi_query_u8(bank, 0, 0x20);

-		cfi_info->block_erase_timeout_typ = cfi_query_u8(bank, 0, 0x21);

-		cfi_info->chip_erase_timeout_typ = cfi_query_u8(bank, 0, 0x22);

-		cfi_info->word_write_timeout_max = cfi_query_u8(bank, 0, 0x23);

-		cfi_info->buf_write_timeout_max = cfi_query_u8(bank, 0, 0x24);

-		cfi_info->block_erase_timeout_max = cfi_query_u8(bank, 0, 0x25);

-		cfi_info->chip_erase_timeout_max = cfi_query_u8(bank, 0, 0x26);

-

-		DEBUG("Vcc min: %1.1x.%1.1x, Vcc max: %1.1x.%1.1x, Vpp min: %1.1x.%1.1x, Vpp max: %1.1x.%1.1x",

-			(cfi_info->vcc_min & 0xf0) >> 4, cfi_info->vcc_min & 0x0f,

-			(cfi_info->vcc_max & 0xf0) >> 4, cfi_info->vcc_max & 0x0f,

-			(cfi_info->vpp_min & 0xf0) >> 4, cfi_info->vpp_min & 0x0f,

-			(cfi_info->vpp_max & 0xf0) >> 4, cfi_info->vpp_max & 0x0f);

-		DEBUG("typ. word write timeout: %u, typ. buf write timeout: %u, typ. block erase timeout: %u, typ. chip erase timeout: %u", 1 << cfi_info->word_write_timeout_typ, 1 << cfi_info->buf_write_timeout_typ,

-			1 << cfi_info->block_erase_timeout_typ, 1 << cfi_info->chip_erase_timeout_typ);

-		DEBUG("max. word write timeout: %u, max. buf write timeout: %u, max. block erase timeout: %u, max. chip erase timeout: %u", (1 << cfi_info->word_write_timeout_max) * (1 << cfi_info->word_write_timeout_typ),

-			(1 << cfi_info->buf_write_timeout_max) * (1 << cfi_info->buf_write_timeout_typ),

-			(1 << cfi_info->block_erase_timeout_max) * (1 << cfi_info->block_erase_timeout_typ),

-			(1 << cfi_info->chip_erase_timeout_max) * (1 << cfi_info->chip_erase_timeout_typ));

-

-		cfi_info->dev_size = cfi_query_u8(bank, 0, 0x27);

-		cfi_info->interface_desc = cfi_query_u16(bank, 0, 0x28);

-		cfi_info->max_buf_write_size = cfi_query_u16(bank, 0, 0x2a);

-		cfi_info->num_erase_regions = cfi_query_u8(bank, 0, 0x2c);

-

-		DEBUG("size: 0x%x, interface desc: %i, max buffer write size: %x", 1 << cfi_info->dev_size, cfi_info->interface_desc, (1 << cfi_info->max_buf_write_size));

-

-		if (((1 << cfi_info->dev_size) * bank->bus_width / bank->chip_width) != bank->size)

-		{

-			WARNING("configuration specifies 0x%x size, but a 0x%x size flash was found", bank->size, 1 << cfi_info->dev_size);

-		}

-

-		if (cfi_info->num_erase_regions)

-		{

-			cfi_info->erase_region_info = malloc(4 * cfi_info->num_erase_regions);

-			for (i = 0; i < cfi_info->num_erase_regions; i++)

-			{

-				cfi_info->erase_region_info[i] = cfi_query_u32(bank, 0, 0x2d + (4 * i));

-				DEBUG("erase region[%i]: %i blocks of size 0x%x", i, (cfi_info->erase_region_info[i] & 0xffff) + 1, (cfi_info->erase_region_info[i] >> 16) * 256);

-			}

-		}

-		else

-		{

-			cfi_info->erase_region_info = NULL;

-		}

-

-		/* We need to read the primary algorithm extended query table before calculating

-		 * the sector layout to be able to apply fixups

-		 */

-		switch(cfi_info->pri_id)

-		{

-			/* Intel command set (standard and extended) */

-			case 0x0001:

-			case 0x0003:

-				cfi_read_intel_pri_ext(bank);

-				break;

-			/* AMD/Spansion, Atmel, ... command set */

-			case 0x0002:

-				cfi_read_0002_pri_ext(bank);

-				break;

-			default:

-				ERROR("cfi primary command set %i unsupported", cfi_info->pri_id);

-				break;

-		}

-

-		/* return to read array mode

-		 * we use both reset commands, as some Intel flashes fail to recognize the 0xF0 command

-		 */

-		cfi_command(bank, 0xf0, command);

-		target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);

-		cfi_command(bank, 0xff, command);

-		target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);

-	}

-

-	/* apply fixups depending on the primary command set */

-	switch(cfi_info->pri_id)

-	{

-		/* Intel command set (standard and extended) */

-		case 0x0001:

-		case 0x0003:

-			cfi_fixup(bank, cfi_0001_fixups);

-			break;

-		/* AMD/Spansion, Atmel, ... command set */

-		case 0x0002:

-			cfi_fixup(bank, cfi_0002_fixups);

-			break;

-		default:

-			ERROR("cfi primary command set %i unsupported", cfi_info->pri_id);

-			break;

-	}

-

-	if (cfi_info->num_erase_regions == 0)

-	{

-		/* a device might have only one erase block, spanning the whole device */

-		bank->num_sectors = 1;

-		bank->sectors = malloc(sizeof(flash_sector_t));

-

-		bank->sectors[sector].offset = 0x0;

-		bank->sectors[sector].size = bank->size;

-		bank->sectors[sector].is_erased = -1;

-		bank->sectors[sector].is_protected = -1;

-	}

-	else

-	{

-		for (i = 0; i < cfi_info->num_erase_regions; i++)

-		{

-			num_sectors += (cfi_info->erase_region_info[i] & 0xffff) + 1;

-		}

-

-		bank->num_sectors = num_sectors;

-		bank->sectors = malloc(sizeof(flash_sector_t) * num_sectors);

-

-		for (i = 0; i < cfi_info->num_erase_regions; i++)

-		{

-			int j;

-			for (j = 0; j < (cfi_info->erase_region_info[i] & 0xffff) + 1; j++)

-			{

-				bank->sectors[sector].offset = offset;

-				bank->sectors[sector].size = ((cfi_info->erase_region_info[i] >> 16) * 256) * bank->bus_width / bank->chip_width;

-				offset += bank->sectors[sector].size;

-				bank->sectors[sector].is_erased = -1;

-				bank->sectors[sector].is_protected = -1;

-				sector++;

-			}

-		}

-	}

-	

-	cfi_info->probed = 1;

-

-	return ERROR_OK;

-}

-

-int cfi_auto_probe(struct flash_bank_s *bank)

-{

-	cfi_flash_bank_t *cfi_info = bank->driver_priv;

-	if (cfi_info->probed)

-		return ERROR_OK;

-	return cfi_probe(bank);

-}

-

-int cfi_erase_check(struct flash_bank_s *bank)

-{

-	cfi_flash_bank_t *cfi_info = bank->driver_priv;

-	target_t *target = bank->target;

-	int i;

-	int retval;

-

-	if (!cfi_info->erase_check_algorithm)

-	{

-		u32 erase_check_code[] =

-		{

-			0xe4d03001,	/* ldrb r3, [r0], #1	*/

-			0xe0022003, /* and r2, r2, r3 		*/

-			0xe2511001, /* subs r1, r1, #1		*/

-			0x1afffffb,	/* b -4 				*/

-			0xeafffffe	/* b 0 					*/

-		};

-

-		/* make sure we have a working area */

-		if (target_alloc_working_area(target, 20, &cfi_info->erase_check_algorithm) != ERROR_OK)

-		{

-			WARNING("no working area available, falling back to slow memory reads");

-		}

-		else

-		{

-			u8 erase_check_code_buf[5 * 4];

-

-			for (i = 0; i < 5; i++)

-				target_buffer_set_u32(target, erase_check_code_buf + (i*4), erase_check_code[i]);

-

-			/* write algorithm code to working area */

-			target->type->write_memory(target, cfi_info->erase_check_algorithm->address, 4, 5, erase_check_code_buf);

-		}

-	}

-

-	if (!cfi_info->erase_check_algorithm)

-	{

-		u32 *buffer = malloc(4096);

-

-		for (i = 0; i < bank->num_sectors; i++)

-		{

-			u32 address = bank->base + bank->sectors[i].offset;

-			u32 size = bank->sectors[i].size;

-			u32 check = 0xffffffffU;

-			int erased = 1;

-

-			while (size > 0)

-			{

-				u32 thisrun_size = (size > 4096) ? 4096 : size;

-				int j;

-

-				target->type->read_memory(target, address, 4, thisrun_size / 4, (u8*)buffer);

-

-				for (j = 0; j < thisrun_size / 4; j++)

-					check &= buffer[j];

-

-				if (check != 0xffffffff)

-				{

-					erased = 0;

-					break;

-				}

-

-				size -= thisrun_size;

-				address += thisrun_size;

-			}

-

-			bank->sectors[i].is_erased = erased;

-		}

-

-		free(buffer);

-	}

-	else

-	{

-		for (i = 0; i < bank->num_sectors; i++)

-		{

-			u32 address = bank->base + bank->sectors[i].offset;

-			u32 size = bank->sectors[i].size;

-

-			reg_param_t reg_params[3];

-			armv4_5_algorithm_t armv4_5_info;

-

-			armv4_5_info.common_magic = ARMV4_5_COMMON_MAGIC;

-			armv4_5_info.core_mode = ARMV4_5_MODE_SVC;

-			armv4_5_info.core_state = ARMV4_5_STATE_ARM;

-

-			init_reg_param(&reg_params[0], "r0", 32, PARAM_OUT);

-			buf_set_u32(reg_params[0].value, 0, 32, address);

-

-			init_reg_param(&reg_params[1], "r1", 32, PARAM_OUT);

-			buf_set_u32(reg_params[1].value, 0, 32, size);

-

-			init_reg_param(&reg_params[2], "r2", 32, PARAM_IN_OUT);

-			buf_set_u32(reg_params[2].value, 0, 32, 0xff);

-

-			if ((retval = target->type->run_algorithm(target, 0, NULL, 3, reg_params, cfi_info->erase_check_algorithm->address, cfi_info->erase_check_algorithm->address + 0x10, 10000, &armv4_5_info)) != ERROR_OK)

-				return ERROR_FLASH_OPERATION_FAILED;

-

-			if (buf_get_u32(reg_params[2].value, 0, 32) == 0xff)

-				bank->sectors[i].is_erased = 1;

-			else

-				bank->sectors[i].is_erased = 0;

-

-			destroy_reg_param(&reg_params[0]);

-			destroy_reg_param(&reg_params[1]);

-			destroy_reg_param(&reg_params[2]);

-		}

-	}

-

-	return ERROR_OK;

-}

-

-int cfi_intel_protect_check(struct flash_bank_s *bank)

-{

-	cfi_flash_bank_t *cfi_info = bank->driver_priv;

-	cfi_intel_pri_ext_t *pri_ext = cfi_info->pri_ext;

-	target_t *target = bank->target;

-	u8 command[CFI_MAX_BUS_WIDTH];

-	int i;

-

-	/* check if block lock bits are supported on this device */

-	if (!(pri_ext->blk_status_reg_mask & 0x1))

-		return ERROR_FLASH_OPERATION_FAILED;

-

-	cfi_command(bank, 0x90, command);

-	target->type->write_memory(target, flash_address(bank, 0, 0x55), bank->bus_width, 1, command);

-

-	for (i = 0; i < bank->num_sectors; i++)

-	{

-		u8 block_status = cfi_get_u8(bank, i, 0x2);

-

-		if (block_status & 1)

-			bank->sectors[i].is_protected = 1;

-		else

-			bank->sectors[i].is_protected = 0;

-	}

-

-	cfi_command(bank, 0xff, command);

-	target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);

-

-	return ERROR_OK;

-}

-

-int cfi_spansion_protect_check(struct flash_bank_s *bank)

-{

-	cfi_flash_bank_t *cfi_info = bank->driver_priv;

-	cfi_spansion_pri_ext_t *pri_ext = cfi_info->pri_ext;

-	target_t *target = bank->target;

-	u8 command[8];

-	int i;

-

-	cfi_command(bank, 0xaa, command);

-	target->type->write_memory(target, flash_address(bank, 0, pri_ext->_unlock1), bank->bus_width, 1, command);

-

-	cfi_command(bank, 0x55, command);

-	target->type->write_memory(target, flash_address(bank, 0, pri_ext->_unlock2), bank->bus_width, 1, command);

-

-	cfi_command(bank, 0x90, command);

-	target->type->write_memory(target, flash_address(bank, 0, pri_ext->_unlock1), bank->bus_width, 1, command);

-

-	for (i = 0; i < bank->num_sectors; i++)

-	{

-		u8 block_status = cfi_get_u8(bank, i, 0x2);

-

-		if (block_status & 1)

-			bank->sectors[i].is_protected = 1;

-		else

-			bank->sectors[i].is_protected = 0;

-	}

-

-	cfi_command(bank, 0xf0, command);

-	target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);

-

-	return ERROR_OK;

-}

-

-int cfi_protect_check(struct flash_bank_s *bank)

-{

-	cfi_flash_bank_t *cfi_info = bank->driver_priv;

-

-	if (cfi_info->qry[0] != 'Q')

-		return ERROR_FLASH_BANK_NOT_PROBED;

-

-	switch(cfi_info->pri_id)

-	{

-		case 1:

-		case 3:

-			return cfi_intel_protect_check(bank);

-			break;

-		case 2:

-			return cfi_spansion_protect_check(bank);

-			break;

-		default:

-			ERROR("cfi primary command set %i unsupported", cfi_info->pri_id);

-			break;

-	}

-

-	return ERROR_OK;

-}

-

-int cfi_info(struct flash_bank_s *bank, char *buf, int buf_size)

-{

-	int printed;

-	cfi_flash_bank_t *cfi_info = bank->driver_priv;

-

-	if (cfi_info->qry[0] == (char)-1)

-	{

-		printed = snprintf(buf, buf_size, "\ncfi flash bank not probed yet\n");

-		return ERROR_OK;

-	}

-

-	printed = snprintf(buf, buf_size, "\ncfi information:\n");

-	buf += printed;

-	buf_size -= printed;

-

-	printed = snprintf(buf, buf_size, "\nmfr: 0x%4.4x, id:0x%4.4x\n",

-		cfi_info->manufacturer, cfi_info->device_id);

-	buf += printed;

-	buf_size -= printed;

-

-	printed = snprintf(buf, buf_size, "qry: '%c%c%c', pri_id: 0x%4.4x, pri_addr: 0x%4.4x, alt_id: 0x%4.4x, alt_addr: 0x%4.4x\n", cfi_info->qry[0], cfi_info->qry[1], cfi_info->qry[2], cfi_info->pri_id, cfi_info->pri_addr, cfi_info->alt_id, cfi_info->alt_addr);

-	buf += printed;

-	buf_size -= printed;

-

-	printed = snprintf(buf, buf_size, "Vcc min: %1.1x.%1.1x, Vcc max: %1.1x.%1.1x, Vpp min: %1.1x.%1.1x, Vpp max: %1.1x.%1.1x\n", (cfi_info->vcc_min & 0xf0) >> 4, cfi_info->vcc_min & 0x0f,

-	(cfi_info->vcc_max & 0xf0) >> 4, cfi_info->vcc_max & 0x0f,

-	(cfi_info->vpp_min & 0xf0) >> 4, cfi_info->vpp_min & 0x0f,

-	(cfi_info->vpp_max & 0xf0) >> 4, cfi_info->vpp_max & 0x0f);

-	buf += printed;

-	buf_size -= printed;

-

-	printed = snprintf(buf, buf_size, "typ. word write timeout: %u, typ. buf write timeout: %u, typ. block erase timeout: %u, typ. chip erase timeout: %u\n", 1 << cfi_info->word_write_timeout_typ, 1 << cfi_info->buf_write_timeout_typ,

-		  1 << cfi_info->block_erase_timeout_typ, 1 << cfi_info->chip_erase_timeout_typ);

-	buf += printed;

-	buf_size -= printed;

-

-	printed = snprintf(buf, buf_size, "max. word write timeout: %u, max. buf write timeout: %u, max. block erase timeout: %u, max. chip erase timeout: %u\n", (1 << cfi_info->word_write_timeout_max) * (1 << cfi_info->word_write_timeout_typ),

-		  (1 << cfi_info->buf_write_timeout_max) * (1 << cfi_info->buf_write_timeout_typ),

-		  (1 << cfi_info->block_erase_timeout_max) * (1 << cfi_info->block_erase_timeout_typ),

-		  (1 << cfi_info->chip_erase_timeout_max) * (1 << cfi_info->chip_erase_timeout_typ));

-	buf += printed;

-	buf_size -= printed;

-

-	printed = snprintf(buf, buf_size, "size: 0x%x, interface desc: %i, max buffer write size: %x\n", 1 << cfi_info->dev_size, cfi_info->interface_desc, cfi_info->max_buf_write_size);

-	buf += printed;

-	buf_size -= printed;

-

-	switch(cfi_info->pri_id)

-	{

-		case 1:

-		case 3:

-			cfi_intel_info(bank, buf, buf_size);

-			break;

-		case 2:

-			cfi_spansion_info(bank, buf, buf_size);

-			break;

-		default:

-			ERROR("cfi primary command set %i unsupported", cfi_info->pri_id);

-			break;

-	}

-

-	return ERROR_OK;

-}

+/***************************************************************************
+ *   Copyright (C) 2005, 2007 by Dominic Rath                              *
+ *   Dominic.Rath@gmx.de                                                   *
+ *                                                                         *
+ *   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.             *
+ ***************************************************************************/
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "replacements.h"
+
+#include "cfi.h"
+
+#include "flash.h"
+#include "target.h"
+#include "log.h"
+#include "armv4_5.h"
+#include "algorithm.h"
+#include "binarybuffer.h"
+#include "types.h"
+
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+int cfi_register_commands(struct command_context_s *cmd_ctx);
+int cfi_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct flash_bank_s *bank);
+int cfi_erase(struct flash_bank_s *bank, int first, int last);
+int cfi_protect(struct flash_bank_s *bank, int set, int first, int last);
+int cfi_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count);
+int cfi_probe(struct flash_bank_s *bank);
+int cfi_auto_probe(struct flash_bank_s *bank);
+int cfi_erase_check(struct flash_bank_s *bank);
+int cfi_protect_check(struct flash_bank_s *bank);
+int cfi_info(struct flash_bank_s *bank, char *buf, int buf_size);
+
+int cfi_handle_part_id_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
+
+#define CFI_MAX_BUS_WIDTH	4
+#define CFI_MAX_CHIP_WIDTH	4
+
+/* defines internal maximum size for code fragment in cfi_intel_write_block() */
+#define CFI_MAX_INTEL_CODESIZE 256
+
+flash_driver_t cfi_flash =
+{
+	.name = "cfi",
+	.register_commands = cfi_register_commands,
+	.flash_bank_command = cfi_flash_bank_command,
+	.erase = cfi_erase,
+	.protect = cfi_protect,
+	.write = cfi_write,
+	.probe = cfi_probe,
+	.auto_probe = cfi_auto_probe,
+	.erase_check = cfi_erase_check,
+	.protect_check = cfi_protect_check,
+	.info = cfi_info
+};
+
+cfi_unlock_addresses_t cfi_unlock_addresses[] =
+{
+	[CFI_UNLOCK_555_2AA] = { .unlock1 = 0x555, .unlock2 = 0x2aa },
+	[CFI_UNLOCK_5555_2AAA] = { .unlock1 = 0x5555, .unlock2 = 0x2aaa },
+};
+
+/* CFI fixups foward declarations */
+void cfi_fixup_non_cfi(flash_bank_t *flash, void *param);
+void cfi_fixup_0002_erase_regions(flash_bank_t *flash, void *param);
+void cfi_fixup_0002_unlock_addresses(flash_bank_t *flash, void *param);
+void cfi_fixup_atmel_reversed_erase_regions(flash_bank_t *flash, void *param);
+
+/* fixup after identifying JEDEC manufactuer and ID */
+cfi_fixup_t cfi_jedec_fixups[] = {
+	{CFI_MFR_SST, 0x00D4, cfi_fixup_non_cfi, NULL},
+	{CFI_MFR_SST, 0x00D5, cfi_fixup_non_cfi, NULL},
+	{CFI_MFR_SST, 0x00D6, cfi_fixup_non_cfi, NULL},
+	{CFI_MFR_SST, 0x00D7, cfi_fixup_non_cfi, NULL},
+	{CFI_MFR_SST, 0x2780, cfi_fixup_non_cfi, NULL},
+	{CFI_MFR_ST, 0x00D5, cfi_fixup_non_cfi, NULL},
+	{CFI_MFR_ST, 0x00D6, cfi_fixup_non_cfi, NULL},
+	{CFI_MFR_AMD, 0x2223, cfi_fixup_non_cfi, NULL},
+	{CFI_MFR_AMD, 0x22ab, cfi_fixup_non_cfi, NULL},
+	{0, 0, NULL, NULL}
+};
+
+/* fixup after reading cmdset 0002 primary query table */
+cfi_fixup_t cfi_0002_fixups[] = {
+	{CFI_MFR_SST, 0x00D4, cfi_fixup_0002_unlock_addresses, &cfi_unlock_addresses[CFI_UNLOCK_5555_2AAA]},
+	{CFI_MFR_SST, 0x00D5, cfi_fixup_0002_unlock_addresses, &cfi_unlock_addresses[CFI_UNLOCK_5555_2AAA]},
+	{CFI_MFR_SST, 0x00D6, cfi_fixup_0002_unlock_addresses, &cfi_unlock_addresses[CFI_UNLOCK_5555_2AAA]},
+	{CFI_MFR_SST, 0x00D7, cfi_fixup_0002_unlock_addresses, &cfi_unlock_addresses[CFI_UNLOCK_5555_2AAA]},
+	{CFI_MFR_SST, 0x2780, cfi_fixup_0002_unlock_addresses, &cfi_unlock_addresses[CFI_UNLOCK_5555_2AAA]},
+	{CFI_MFR_ATMEL, 0x00C8, cfi_fixup_atmel_reversed_erase_regions, NULL},
+	{CFI_MFR_ANY, CFI_ID_ANY, cfi_fixup_0002_erase_regions, NULL},
+	{0, 0, NULL, NULL}
+};
+
+/* fixup after reading cmdset 0001 primary query table */
+cfi_fixup_t cfi_0001_fixups[] = {
+	{0, 0, NULL, NULL}
+};
+
+void cfi_fixup(flash_bank_t *bank, cfi_fixup_t *fixups)
+{
+	cfi_flash_bank_t *cfi_info = bank->driver_priv;
+	cfi_fixup_t *f;
+
+	for (f = fixups; f->fixup; f++)
+	{
+		if (((f->mfr == CFI_MFR_ANY) || (f->mfr == cfi_info->manufacturer)) &&
+			((f->id  == CFI_ID_ANY)  || (f->id  == cfi_info->device_id)))
+		{
+			f->fixup(bank, f->param);
+		}
+	}
+}
+
+inline u32 flash_address(flash_bank_t *bank, int sector, u32 offset)
+{
+	/* while the sector list isn't built, only accesses to sector 0 work */
+	if (sector == 0)
+		return bank->base + offset * bank->bus_width;
+	else
+	{
+		if (!bank->sectors)
+		{
+			ERROR("BUG: sector list not yet built");
+			exit(-1);
+		}
+		return bank->base + bank->sectors[sector].offset + offset * bank->bus_width;
+	}
+
+}
+
+void cfi_command(flash_bank_t *bank, u8 cmd, u8 *cmd_buf)
+{
+	int i;
+
+	/* clear whole buffer, to ensure bits that exceed the bus_width
+	 * are set to zero
+	 */
+	for (i = 0; i < CFI_MAX_BUS_WIDTH; i++)
+		cmd_buf[i] = 0;
+
+	if (bank->target->endianness == TARGET_LITTLE_ENDIAN)
+	{
+		for (i = bank->bus_width; i > 0; i--)
+		{
+			*cmd_buf++ = (i & (bank->chip_width - 1)) ? 0x0 : cmd;
+		}
+	}
+	else
+	{
+		for (i = 1; i <= bank->bus_width; i++)
+		{
+			*cmd_buf++ = (i & (bank->chip_width - 1)) ? 0x0 : cmd;
+		}
+	}
+}
+
+/* read unsigned 8-bit value from the bank
+ * flash banks are expected to be made of similar chips
+ * the query result should be the same for all
+ */
+u8 cfi_query_u8(flash_bank_t *bank, int sector, u32 offset)
+{
+	target_t *target = bank->target;
+	u8 data[CFI_MAX_BUS_WIDTH];
+
+	target->type->read_memory(target, flash_address(bank, sector, offset), bank->bus_width, 1, data);
+
+	if (bank->target->endianness == TARGET_LITTLE_ENDIAN)
+		return data[0];
+	else
+		return data[bank->bus_width - 1];
+}
+
+/* read unsigned 8-bit value from the bank
+ * in case of a bank made of multiple chips,
+ * the individual values are ORed
+ */
+u8 cfi_get_u8(flash_bank_t *bank, int sector, u32 offset)
+{
+	target_t *target = bank->target;
+	u8 data[CFI_MAX_BUS_WIDTH];
+	int i;
+
+	target->type->read_memory(target, flash_address(bank, sector, offset), bank->bus_width, 1, data);
+
+	if (bank->target->endianness == TARGET_LITTLE_ENDIAN)
+	{
+		for (i = 0; i < bank->bus_width / bank->chip_width; i++)
+			data[0] |= data[i];
+
+		return data[0];
+	}
+	else
+	{
+		u8 value = 0;
+		for (i = 0; i < bank->bus_width / bank->chip_width; i++)
+			value |= data[bank->bus_width - 1 - i];
+
+		return value;
+	}
+}
+
+u16 cfi_query_u16(flash_bank_t *bank, int sector, u32 offset)
+{
+	target_t *target = bank->target;
+	u8 data[CFI_MAX_BUS_WIDTH * 2];
+
+	target->type->read_memory(target, flash_address(bank, sector, offset), bank->bus_width, 2, data);
+
+	if (bank->target->endianness == TARGET_LITTLE_ENDIAN)
+		return data[0] | data[bank->bus_width] << 8;
+	else
+		return data[bank->bus_width - 1] | data[(2 * bank->bus_width) - 1] << 8;
+}
+
+u32 cfi_query_u32(flash_bank_t *bank, int sector, u32 offset)
+{
+	target_t *target = bank->target;
+	u8 data[CFI_MAX_BUS_WIDTH * 4];
+
+	target->type->read_memory(target, flash_address(bank, sector, offset), bank->bus_width, 4, data);
+
+	if (bank->target->endianness == TARGET_LITTLE_ENDIAN)
+		return data[0] | data[bank->bus_width] << 8 | data[bank->bus_width * 2] << 16 | data[bank->bus_width * 3] << 24;
+	else
+		return data[bank->bus_width - 1] | data[(2* bank->bus_width) - 1] << 8 |
+				data[(3 * bank->bus_width) - 1] << 16 | data[(4 * bank->bus_width) - 1] << 24;
+}
+
+void cfi_intel_clear_status_register(flash_bank_t *bank)
+{
+	target_t *target = bank->target;
+	u8 command[8];
+
+	if (target->state != TARGET_HALTED)
+	{
+		ERROR("BUG: attempted to clear status register while target wasn't halted");
+		exit(-1);
+	}
+
+	cfi_command(bank, 0x50, command);
+	target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);
+}
+
+u8 cfi_intel_wait_status_busy(flash_bank_t *bank, int timeout)
+{
+	u8 status;
+
+	while ((!((status = cfi_get_u8(bank, 0, 0x0)) & 0x80)) && (timeout-- > 0))
+	{
+		DEBUG("status: 0x%x", status);
+		usleep(1000);
+	}
+
+	/* mask out bit 0 (reserved) */
+	status = status & 0xfe;
+
+	DEBUG("status: 0x%x", status);
+
+	if ((status & 0x80) != 0x80)
+	{
+		ERROR("timeout while waiting for WSM to become ready");
+	}
+	else if (status != 0x80)
+	{
+		ERROR("status register: 0x%x", status);
+		if (status & 0x2)
+			ERROR("Block Lock-Bit Detected, Operation Abort");
+		if (status & 0x4)
+			ERROR("Program suspended");
+		if (status & 0x8)
+			ERROR("Low Programming Voltage Detected, Operation Aborted");
+		if (status & 0x10)
+			ERROR("Program Error / Error in Setting Lock-Bit");
+		if (status & 0x20)
+			ERROR("Error in Block Erasure or Clear Lock-Bits");
+		if (status & 0x40)
+			ERROR("Block Erase Suspended");
+
+		cfi_intel_clear_status_register(bank);
+	}
+
+	return status;
+}
+
+int cfi_spansion_wait_status_busy(flash_bank_t *bank, int timeout)
+{
+	u8 status, oldstatus;
+
+	oldstatus = cfi_get_u8(bank, 0, 0x0);
+
+	do {
+		status = cfi_get_u8(bank, 0, 0x0);
+		if ((status ^ oldstatus) & 0x40) {
+			if (status & 0x20) {
+				oldstatus = cfi_get_u8(bank, 0, 0x0);
+				status = cfi_get_u8(bank, 0, 0x0);
+				if ((status ^ oldstatus) & 0x40) {
+					ERROR("dq5 timeout, status: 0x%x", status);
+					return(ERROR_FLASH_OPERATION_FAILED);
+				} else {
+					DEBUG("status: 0x%x", status);
+					return(ERROR_OK);
+				}
+			}
+		} else {
+			DEBUG("status: 0x%x", status);
+			return(ERROR_OK);
+		}
+
+		oldstatus = status;
+		usleep(1000);
+	} while (timeout-- > 0);
+
+	ERROR("timeout, status: 0x%x", status);
+
+	return(ERROR_FLASH_BUSY);
+}
+
+int cfi_read_intel_pri_ext(flash_bank_t *bank)
+{
+	cfi_flash_bank_t *cfi_info = bank->driver_priv;
+	cfi_intel_pri_ext_t *pri_ext = malloc(sizeof(cfi_intel_pri_ext_t));
+	target_t *target = bank->target;
+	u8 command[8];
+
+	cfi_info->pri_ext = pri_ext;
+
+	pri_ext->pri[0] = cfi_query_u8(bank, 0, cfi_info->pri_addr + 0);
+	pri_ext->pri[1] = cfi_query_u8(bank, 0, cfi_info->pri_addr + 1);
+	pri_ext->pri[2] = cfi_query_u8(bank, 0, cfi_info->pri_addr + 2);
+
+	if ((pri_ext->pri[0] != 'P') || (pri_ext->pri[1] != 'R') || (pri_ext->pri[2] != 'I'))
+	{
+		cfi_command(bank, 0xf0, command);
+		target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);
+		cfi_command(bank, 0xff, command);
+		target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);
+		return ERROR_FLASH_BANK_INVALID;
+	}
+
+	pri_ext->major_version = cfi_query_u8(bank, 0, cfi_info->pri_addr + 3);
+	pri_ext->minor_version = cfi_query_u8(bank, 0, cfi_info->pri_addr + 4);
+
+	DEBUG("pri: '%c%c%c', version: %c.%c", pri_ext->pri[0], pri_ext->pri[1], pri_ext->pri[2], pri_ext->major_version, pri_ext->minor_version);
+
+	pri_ext->feature_support = cfi_query_u32(bank, 0, cfi_info->pri_addr + 5);
+	pri_ext->suspend_cmd_support = cfi_query_u8(bank, 0, cfi_info->pri_addr + 9);
+	pri_ext->blk_status_reg_mask = cfi_query_u16(bank, 0, cfi_info->pri_addr + 0xa);
+
+	DEBUG("feature_support: 0x%x, suspend_cmd_support: 0x%x, blk_status_reg_mask: 0x%x", pri_ext->feature_support, pri_ext->suspend_cmd_support, pri_ext->blk_status_reg_mask);
+
+	pri_ext->vcc_optimal = cfi_query_u8(bank, 0, cfi_info->pri_addr + 0xc);
+	pri_ext->vpp_optimal = cfi_query_u8(bank, 0, cfi_info->pri_addr + 0xd);
+
+	DEBUG("Vcc opt: %1.1x.%1.1x, Vpp opt: %1.1x.%1.1x",
+		  (pri_ext->vcc_optimal & 0xf0) >> 4, pri_ext->vcc_optimal & 0x0f,
+		  (pri_ext->vpp_optimal & 0xf0) >> 4, pri_ext->vpp_optimal & 0x0f);
+
+	pri_ext->num_protection_fields = cfi_query_u8(bank, 0, cfi_info->pri_addr + 0xe);
+	if (pri_ext->num_protection_fields != 1)
+	{
+		WARNING("expected one protection register field, but found %i", pri_ext->num_protection_fields);
+	}
+
+	pri_ext->prot_reg_addr = cfi_query_u16(bank, 0, cfi_info->pri_addr + 0xf);
+	pri_ext->fact_prot_reg_size = cfi_query_u8(bank, 0, cfi_info->pri_addr + 0x11);
+	pri_ext->user_prot_reg_size = cfi_query_u8(bank, 0, cfi_info->pri_addr + 0x12);
+
+	DEBUG("protection_fields: %i, prot_reg_addr: 0x%x, factory pre-programmed: %i, user programmable: %i", pri_ext->num_protection_fields, pri_ext->prot_reg_addr, 1 << pri_ext->fact_prot_reg_size, 1 << pri_ext->user_prot_reg_size);
+
+	return ERROR_OK;
+}
+
+int cfi_read_spansion_pri_ext(flash_bank_t *bank)
+{
+	cfi_flash_bank_t *cfi_info = bank->driver_priv;
+	cfi_spansion_pri_ext_t *pri_ext = malloc(sizeof(cfi_spansion_pri_ext_t));
+	target_t *target = bank->target;
+	u8 command[8];
+
+	cfi_info->pri_ext = pri_ext;
+
+	pri_ext->pri[0] = cfi_query_u8(bank, 0, cfi_info->pri_addr + 0);
+	pri_ext->pri[1] = cfi_query_u8(bank, 0, cfi_info->pri_addr + 1);
+	pri_ext->pri[2] = cfi_query_u8(bank, 0, cfi_info->pri_addr + 2);
+
+	if ((pri_ext->pri[0] != 'P') || (pri_ext->pri[1] != 'R') || (pri_ext->pri[2] != 'I'))
+	{
+		cfi_command(bank, 0xf0, command);
+		target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);
+		return ERROR_FLASH_BANK_INVALID;
+	}
+
+	pri_ext->major_version = cfi_query_u8(bank, 0, cfi_info->pri_addr + 3);
+	pri_ext->minor_version = cfi_query_u8(bank, 0, cfi_info->pri_addr + 4);
+
+	DEBUG("pri: '%c%c%c', version: %c.%c", pri_ext->pri[0], pri_ext->pri[1], pri_ext->pri[2], pri_ext->major_version, pri_ext->minor_version);
+
+	pri_ext->SiliconRevision = cfi_query_u8(bank, 0, cfi_info->pri_addr + 5);
+	pri_ext->EraseSuspend    = cfi_query_u8(bank, 0, cfi_info->pri_addr + 6);
+	pri_ext->BlkProt         = cfi_query_u8(bank, 0, cfi_info->pri_addr + 7);
+	pri_ext->TmpBlkUnprotect = cfi_query_u8(bank, 0, cfi_info->pri_addr + 8);
+	pri_ext->BlkProtUnprot   = cfi_query_u8(bank, 0, cfi_info->pri_addr + 9);
+	pri_ext->SimultaneousOps = cfi_query_u8(bank, 0, cfi_info->pri_addr + 10);
+	pri_ext->BurstMode       = cfi_query_u8(bank, 0, cfi_info->pri_addr + 11);
+	pri_ext->PageMode        = cfi_query_u8(bank, 0, cfi_info->pri_addr + 12);
+	pri_ext->VppMin          = cfi_query_u8(bank, 0, cfi_info->pri_addr + 13);
+	pri_ext->VppMax          = cfi_query_u8(bank, 0, cfi_info->pri_addr + 14);
+	pri_ext->TopBottom       = cfi_query_u8(bank, 0, cfi_info->pri_addr + 15);
+
+	DEBUG("Silicon Revision: 0x%x, Erase Suspend: 0x%x, Block protect: 0x%x", pri_ext->SiliconRevision,
+	      pri_ext->EraseSuspend, pri_ext->BlkProt);
+
+	DEBUG("Temporary Unprotect: 0x%x, Block Protect Scheme: 0x%x, Simultaneous Ops: 0x%x", pri_ext->TmpBlkUnprotect,
+	      pri_ext->BlkProtUnprot, pri_ext->SimultaneousOps);
+
+	DEBUG("Burst Mode: 0x%x, Page Mode: 0x%x, ", pri_ext->BurstMode, pri_ext->PageMode);
+
+
+	DEBUG("Vpp min: %2.2d.%1.1d, Vpp max: %2.2d.%1.1x",
+		  (pri_ext->VppMin & 0xf0) >> 4, pri_ext->VppMin & 0x0f,
+		  (pri_ext->VppMax & 0xf0) >> 4, pri_ext->VppMax & 0x0f);
+
+	DEBUG("WP# protection 0x%x", pri_ext->TopBottom);
+
+	/* default values for implementation specific workarounds */
+	pri_ext->_unlock1 = cfi_unlock_addresses[CFI_UNLOCK_555_2AA].unlock1;
+	pri_ext->_unlock2 = cfi_unlock_addresses[CFI_UNLOCK_555_2AA].unlock2;
+	pri_ext->_reversed_geometry = 0;
+
+	return ERROR_OK;
+}
+
+int cfi_read_atmel_pri_ext(flash_bank_t *bank)
+{
+	cfi_atmel_pri_ext_t atmel_pri_ext;
+	cfi_flash_bank_t *cfi_info = bank->driver_priv;
+	cfi_spansion_pri_ext_t *pri_ext = malloc(sizeof(cfi_spansion_pri_ext_t));
+	target_t *target = bank->target;
+	u8 command[8];
+
+	/* ATMEL devices use the same CFI primary command set (0x2) as AMD/Spansion,
+	 * but a different primary extended query table.
+	 * We read the atmel table, and prepare a valid AMD/Spansion query table.
+	 */
+
+	memset(pri_ext, 0, sizeof(cfi_spansion_pri_ext_t));
+
+	cfi_info->pri_ext = pri_ext;
+
+	atmel_pri_ext.pri[0] = cfi_query_u8(bank, 0, cfi_info->pri_addr + 0);
+	atmel_pri_ext.pri[1] = cfi_query_u8(bank, 0, cfi_info->pri_addr + 1);
+	atmel_pri_ext.pri[2] = cfi_query_u8(bank, 0, cfi_info->pri_addr + 2);
+
+	if ((atmel_pri_ext.pri[0] != 'P') || (atmel_pri_ext.pri[1] != 'R') || (atmel_pri_ext.pri[2] != 'I'))
+	{
+		cfi_command(bank, 0xf0, command);
+		target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);
+		return ERROR_FLASH_BANK_INVALID;
+	}
+
+	pri_ext->pri[0] = atmel_pri_ext.pri[0];
+	pri_ext->pri[1] = atmel_pri_ext.pri[1];
+	pri_ext->pri[2] = atmel_pri_ext.pri[2];
+
+	atmel_pri_ext.major_version = cfi_query_u8(bank, 0, cfi_info->pri_addr + 3);
+	atmel_pri_ext.minor_version = cfi_query_u8(bank, 0, cfi_info->pri_addr + 4);
+
+	DEBUG("pri: '%c%c%c', version: %c.%c", atmel_pri_ext.pri[0], atmel_pri_ext.pri[1], atmel_pri_ext.pri[2], atmel_pri_ext.major_version, atmel_pri_ext.minor_version);
+
+	pri_ext->major_version = atmel_pri_ext.major_version;
+	pri_ext->minor_version = atmel_pri_ext.minor_version;
+
+	atmel_pri_ext.features = cfi_query_u8(bank, 0, cfi_info->pri_addr + 5);
+	atmel_pri_ext.bottom_boot = cfi_query_u8(bank, 0, cfi_info->pri_addr + 6);
+	atmel_pri_ext.burst_mode = cfi_query_u8(bank, 0, cfi_info->pri_addr + 7);
+	atmel_pri_ext.page_mode = cfi_query_u8(bank, 0, cfi_info->pri_addr + 8);
+
+	DEBUG("features: 0x%2.2x, bottom_boot: 0x%2.2x, burst_mode: 0x%2.2x, page_mode: 0x%2.2x",
+		atmel_pri_ext.features, atmel_pri_ext.bottom_boot, atmel_pri_ext.burst_mode, atmel_pri_ext.page_mode);
+
+	if (atmel_pri_ext.features & 0x02)
+		pri_ext->EraseSuspend = 2;
+
+	if (atmel_pri_ext.bottom_boot)
+		pri_ext->TopBottom = 2;
+	else
+		pri_ext->TopBottom = 3;
+
+	pri_ext->_unlock1 = cfi_unlock_addresses[CFI_UNLOCK_555_2AA].unlock1;
+	pri_ext->_unlock2 = cfi_unlock_addresses[CFI_UNLOCK_555_2AA].unlock2;
+
+	return ERROR_OK;
+}
+
+int cfi_read_0002_pri_ext(flash_bank_t *bank)
+{
+	cfi_flash_bank_t *cfi_info = bank->driver_priv;
+
+	if (cfi_info->manufacturer == CFI_MFR_ATMEL)
+	{
+		return cfi_read_atmel_pri_ext(bank);
+	}
+	else
+	{
+		return cfi_read_spansion_pri_ext(bank);
+	}
+}
+
+int cfi_spansion_info(struct flash_bank_s *bank, char *buf, int buf_size)
+{
+	int printed;
+	cfi_flash_bank_t *cfi_info = bank->driver_priv;
+	cfi_spansion_pri_ext_t *pri_ext = cfi_info->pri_ext;
+
+	printed = snprintf(buf, buf_size, "\nSpansion primary algorithm extend information:\n");
+	buf += printed;
+	buf_size -= printed;
+
+	printed = snprintf(buf, buf_size, "pri: '%c%c%c', version: %c.%c\n", pri_ext->pri[0],
+			   pri_ext->pri[1], pri_ext->pri[2],
+			   pri_ext->major_version, pri_ext->minor_version);
+	buf += printed;
+	buf_size -= printed;
+
+	printed = snprintf(buf, buf_size, "Silicon Rev.: 0x%x, Address Sensitive unlock: 0x%x\n",
+			   (pri_ext->SiliconRevision) >> 2,
+			   (pri_ext->SiliconRevision) & 0x03);
+	buf += printed;
+	buf_size -= printed;
+
+	printed = snprintf(buf, buf_size, "Erase Suspend: 0x%x, Sector Protect: 0x%x\n",
+			   pri_ext->EraseSuspend,
+			   pri_ext->BlkProt);
+	buf += printed;
+	buf_size -= printed;
+
+	printed = snprintf(buf, buf_size, "VppMin: %2.2d.%1.1x, VppMax: %2.2d.%1.1x\n",
+		(pri_ext->VppMin & 0xf0) >> 4, pri_ext->VppMin & 0x0f,
+		(pri_ext->VppMax & 0xf0) >> 4, pri_ext->VppMax & 0x0f);
+
+	return ERROR_OK;
+}
+
+int cfi_intel_info(struct flash_bank_s *bank, char *buf, int buf_size)
+{
+	int printed;
+	cfi_flash_bank_t *cfi_info = bank->driver_priv;
+	cfi_intel_pri_ext_t *pri_ext = cfi_info->pri_ext;
+
+	printed = snprintf(buf, buf_size, "\nintel primary algorithm extend information:\n");
+	buf += printed;
+	buf_size -= printed;
+
+	printed = snprintf(buf, buf_size, "pri: '%c%c%c', version: %c.%c\n", pri_ext->pri[0], pri_ext->pri[1], pri_ext->pri[2], pri_ext->major_version, pri_ext->minor_version);
+	buf += printed;
+	buf_size -= printed;
+
+	printed = snprintf(buf, buf_size, "feature_support: 0x%x, suspend_cmd_support: 0x%x, blk_status_reg_mask: 0x%x\n", pri_ext->feature_support, pri_ext->suspend_cmd_support, pri_ext->blk_status_reg_mask);
+	buf += printed;
+	buf_size -= printed;
+
+	printed = snprintf(buf, buf_size, "Vcc opt: %1.1x.%1.1x, Vpp opt: %1.1x.%1.1x\n",
+		(pri_ext->vcc_optimal & 0xf0) >> 4, pri_ext->vcc_optimal & 0x0f,
+		(pri_ext->vpp_optimal & 0xf0) >> 4, pri_ext->vpp_optimal & 0x0f);
+	buf += printed;
+	buf_size -= printed;
+
+	printed = snprintf(buf, buf_size, "protection_fields: %i, prot_reg_addr: 0x%x, factory pre-programmed: %i, user programmable: %i\n", pri_ext->num_protection_fields, pri_ext->prot_reg_addr, 1 << pri_ext->fact_prot_reg_size, 1 << pri_ext->user_prot_reg_size);
+
+	return ERROR_OK;
+}
+
+int cfi_register_commands(struct command_context_s *cmd_ctx)
+{
+	/*command_t *cfi_cmd = */
+	register_command(cmd_ctx, NULL, "cfi", NULL, COMMAND_ANY, "flash bank cfi <base> <size> <chip_width> <bus_width> <targetNum> [jedec_probe/x16_as_x8]");
+	/*
+	register_command(cmd_ctx, cfi_cmd, "part_id", cfi_handle_part_id_command, COMMAND_EXEC,
+					 "print part id of cfi flash bank <num>");
+	*/
+	return ERROR_OK;
+}
+
+/* flash_bank cfi <base> <size> <chip_width> <bus_width> <target#> [options]
+ */
+int cfi_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct flash_bank_s *bank)
+{
+	cfi_flash_bank_t *cfi_info;
+	int i;
+
+	if (argc < 6)
+	{
+		WARNING("incomplete flash_bank cfi configuration");
+		return ERROR_FLASH_BANK_INVALID;
+	}
+
+	if ((strtoul(args[4], NULL, 0) > CFI_MAX_CHIP_WIDTH)
+		|| (strtoul(args[3], NULL, 0) > CFI_MAX_BUS_WIDTH))
+	{
+		ERROR("chip and bus width have to specified in bytes");
+		return ERROR_FLASH_BANK_INVALID;
+	}
+
+	cfi_info = malloc(sizeof(cfi_flash_bank_t));
+	cfi_info->probed = 0;
+	bank->driver_priv = cfi_info;
+
+	cfi_info->write_algorithm = NULL;
+	cfi_info->erase_check_algorithm = NULL;
+
+	cfi_info->x16_as_x8 = 0;
+	cfi_info->jedec_probe = 0;
+	cfi_info->not_cfi = 0;
+
+	for (i = 6; i < argc; i++)
+	{
+		if (strcmp(args[i], "x16_as_x8") == 0)
+		{
+			cfi_info->x16_as_x8 = 1;
+		}
+		else if (strcmp(args[i], "jedec_probe") == 0)
+		{
+			cfi_info->jedec_probe = 1;
+		}
+	}
+
+	cfi_info->write_algorithm = NULL;
+
+	/* bank wasn't probed yet */
+	cfi_info->qry[0] = -1;
+
+	return ERROR_OK;
+}
+
+int cfi_intel_erase(struct flash_bank_s *bank, int first, int last)
+{
+	cfi_flash_bank_t *cfi_info = bank->driver_priv;
+	target_t *target = bank->target;
+	u8 command[8];
+	int i;
+
+	cfi_intel_clear_status_register(bank);
+
+	for (i = first; i <= last; i++)
+	{
+		cfi_command(bank, 0x20, command);
+		target->type->write_memory(target, flash_address(bank, i, 0x0), bank->bus_width, 1, command);
+
+		cfi_command(bank, 0xd0, command);
+		target->type->write_memory(target, flash_address(bank, i, 0x0), bank->bus_width, 1, command);
+
+		if (cfi_intel_wait_status_busy(bank, 1000 * (1 << cfi_info->block_erase_timeout_typ)) == 0x80)
+			bank->sectors[i].is_erased = 1;
+		else
+		{
+			cfi_command(bank, 0xff, command);
+			target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);
+
+			ERROR("couldn't erase block %i of flash bank at base 0x%x", i, bank->base);
+			return ERROR_FLASH_OPERATION_FAILED;
+		}
+	}
+
+	cfi_command(bank, 0xff, command);
+	target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);
+
+	return ERROR_OK;
+}
+
+int cfi_spansion_erase(struct flash_bank_s *bank, int first, int last)
+{
+	cfi_flash_bank_t *cfi_info = bank->driver_priv;
+	cfi_spansion_pri_ext_t *pri_ext = cfi_info->pri_ext;
+	target_t *target = bank->target;
+	u8 command[8];
+	int i;
+
+	for (i = first; i <= last; i++)
+	{
+		cfi_command(bank, 0xaa, command);
+		target->type->write_memory(target, flash_address(bank, 0, pri_ext->_unlock1), bank->bus_width, 1, command);
+
+		cfi_command(bank, 0x55, command);
+		target->type->write_memory(target, flash_address(bank, 0, pri_ext->_unlock2), bank->bus_width, 1, command);
+
+		cfi_command(bank, 0x80, command);
+		target->type->write_memory(target, flash_address(bank, 0, pri_ext->_unlock1), bank->bus_width, 1, command);
+
+		cfi_command(bank, 0xaa, command);
+		target->type->write_memory(target, flash_address(bank, 0, pri_ext->_unlock1), bank->bus_width, 1, command);
+
+		cfi_command(bank, 0x55, command);
+		target->type->write_memory(target, flash_address(bank, 0, pri_ext->_unlock2), bank->bus_width, 1, command);
+
+		cfi_command(bank, 0x30, command);
+		target->type->write_memory(target, flash_address(bank, i, 0x0), bank->bus_width, 1, command);
+
+		if (cfi_spansion_wait_status_busy(bank, 1000 * (1 << cfi_info->block_erase_timeout_typ)) == ERROR_OK)
+			bank->sectors[i].is_erased = 1;
+		else
+		{
+			cfi_command(bank, 0xf0, command);
+			target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);
+
+			ERROR("couldn't erase block %i of flash bank at base 0x%x", i, bank->base);
+			return ERROR_FLASH_OPERATION_FAILED;
+		}
+	}
+
+	cfi_command(bank, 0xf0, command);
+	target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);
+
+	return ERROR_OK;
+}
+
+int cfi_erase(struct flash_bank_s *bank, int first, int last)
+{
+	cfi_flash_bank_t *cfi_info = bank->driver_priv;
+
+	if (bank->target->state != TARGET_HALTED)
+	{
+		return ERROR_TARGET_NOT_HALTED;
+	}
+
+	if ((first < 0) || (last < first) || (last >= bank->num_sectors))
+	{
+		return ERROR_FLASH_SECTOR_INVALID;
+	}
+
+	if (cfi_info->qry[0] != 'Q')
+		return ERROR_FLASH_BANK_NOT_PROBED;
+
+	switch(cfi_info->pri_id)
+	{
+		case 1:
+		case 3:
+			return cfi_intel_erase(bank, first, last);
+			break;
+		case 2:
+			return cfi_spansion_erase(bank, first, last);
+			break;
+		default:
+			ERROR("cfi primary command set %i unsupported", cfi_info->pri_id);
+			break;
+	}
+
+	return ERROR_OK;
+}
+
+int cfi_intel_protect(struct flash_bank_s *bank, int set, int first, int last)
+{
+	cfi_flash_bank_t *cfi_info = bank->driver_priv;
+	cfi_intel_pri_ext_t *pri_ext = cfi_info->pri_ext;
+	target_t *target = bank->target;
+	u8 command[8];
+	int retry = 0;
+	int i;
+
+	/* if the device supports neither legacy lock/unlock (bit 3) nor
+	 * instant individual block locking (bit 5).
+	 */
+	if (!(pri_ext->feature_support & 0x28))
+		return ERROR_FLASH_OPERATION_FAILED;
+
+	cfi_intel_clear_status_register(bank);
+
+	for (i = first; i <= last; i++)
+	{
+		cfi_command(bank, 0x60, command);
+		DEBUG("address: 0x%4.4x, command: 0x%4.4x", flash_address(bank, i, 0x0), target_buffer_get_u32(target, command));
+		target->type->write_memory(target, flash_address(bank, i, 0x0), bank->bus_width, 1, command);
+		if (set)
+		{
+			cfi_command(bank, 0x01, command);
+			DEBUG("address: 0x%4.4x, command: 0x%4.4x", flash_address(bank, i, 0x0), target_buffer_get_u32(target, command));
+			target->type->write_memory(target, flash_address(bank, i, 0x0), bank->bus_width, 1, command);
+			bank->sectors[i].is_protected = 1;
+		}
+		else
+		{
+			cfi_command(bank, 0xd0, command);
+			DEBUG("address: 0x%4.4x, command: 0x%4.4x", flash_address(bank, i, 0x0), target_buffer_get_u32(target, command));
+			target->type->write_memory(target, flash_address(bank, i, 0x0), bank->bus_width, 1, command);
+			bank->sectors[i].is_protected = 0;
+		}
+
+		/* instant individual block locking doesn't require reading of the status register */
+		if (!(pri_ext->feature_support & 0x20))
+		{
+			/* Clear lock bits operation may take up to 1.4s */
+			cfi_intel_wait_status_busy(bank, 1400);
+		}
+		else
+		{
+			u8 block_status;
+			/* read block lock bit, to verify status */
+			cfi_command(bank, 0x90, command);
+			target->type->write_memory(target, flash_address(bank, 0, 0x55), bank->bus_width, 1, command);
+			block_status = cfi_get_u8(bank, i, 0x2);
+
+			if ((block_status & 0x1) != set)
+			{
+				ERROR("couldn't change block lock status (set = %i, block_status = 0x%2.2x)", set, block_status);
+				cfi_command(bank, 0x70, command);
+				target->type->write_memory(target, flash_address(bank, 0, 0x55), bank->bus_width, 1, command);
+				cfi_intel_wait_status_busy(bank, 10);
+
+				if (retry > 10)
+					return ERROR_FLASH_OPERATION_FAILED;
+				else
+				{
+					i--;
+					retry++;
+				}
+			}
+		}
+	}
+
+	/* if the device doesn't support individual block lock bits set/clear,
+	 * all blocks have been unlocked in parallel, so we set those that should be protected
+	 */
+	if ((!set) && (!(pri_ext->feature_support & 0x20)))
+	{
+		for (i = 0; i < bank->num_sectors; i++)
+		{
+			if (bank->sectors[i].is_protected == 1)
+			{
+				cfi_intel_clear_status_register(bank);
+
+				cfi_command(bank, 0x60, command);
+				target->type->write_memory(target, flash_address(bank, i, 0x0), bank->bus_width, 1, command);
+
+				cfi_command(bank, 0x01, command);
+				target->type->write_memory(target, flash_address(bank, i, 0x0), bank->bus_width, 1, command);
+
+				cfi_intel_wait_status_busy(bank, 100);
+			}
+		}
+	}
+
+	cfi_command(bank, 0xff, command);
+	target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);
+
+	return ERROR_OK;
+}
+
+int cfi_protect(struct flash_bank_s *bank, int set, int first, int last)
+{
+	cfi_flash_bank_t *cfi_info = bank->driver_priv;
+
+	if (bank->target->state != TARGET_HALTED)
+	{
+		return ERROR_TARGET_NOT_HALTED;
+	}
+
+	if ((first < 0) || (last < first) || (last >= bank->num_sectors))
+	{
+		return ERROR_FLASH_SECTOR_INVALID;
+	}
+
+	if (cfi_info->qry[0] != 'Q')
+		return ERROR_FLASH_BANK_NOT_PROBED;
+
+	switch(cfi_info->pri_id)
+	{
+		case 1:
+		case 3:
+			cfi_intel_protect(bank, set, first, last);
+			break;
+		default:
+			ERROR("cfi primary command set %i unsupported", cfi_info->pri_id);
+			break;
+	}
+
+	return ERROR_OK;
+}
+
+/* FIXME Replace this by a simple memcpy() - still unsure about sideeffects */
+static void cfi_add_byte(struct flash_bank_s *bank, u8 *word, u8 byte)
+{
+	//target_t *target = bank->target;
+
+	int i;
+
+	// NOTE:
+	// The data to flash must not be changed in endian! We write a bytestrem in
+	// target byte order already. Only the control and status byte lane of the flash
+	// WSM is interpreted by the CPU in different ways, when read a u16 or u32
+	// word (data seems to be in the upper or lower byte lane for u16 accesses).
+
+	//if (target->endianness == TARGET_LITTLE_ENDIAN)
+	//{
+		/* shift bytes */
+		for (i = 0; i < bank->bus_width - 1; i++)
+			word[i] = word[i + 1];
+		word[bank->bus_width - 1] = byte;
+	//}
+	//else
+	//{
+	//	/* shift bytes */
+	//	for (i = bank->bus_width - 1; i > 0; i--)
+	//		word[i] = word[i - 1];
+	//	word[0] = byte;
+	//}
+}
+
+/* Convert code image to target endian */
+/* FIXME create general block conversion fcts in target.c?) */ static
+void cfi_fix_code_endian(target_t *target, u32 *dest, const u32 *src, u32 count)
+{
+	u32 i;
+	for (i=0; i< count; i++)
+	{
+		target_buffer_set_u32(target, (u8*)dest, *src);
+		dest++;
+		src++;
+	}
+}
+
+int cfi_intel_write_block(struct flash_bank_s *bank, u8 *buffer, u32 address, u32 count)
+{
+	cfi_flash_bank_t *cfi_info = bank->driver_priv;
+	target_t *target = bank->target;
+	reg_param_t reg_params[7];
+	armv4_5_algorithm_t armv4_5_info;
+	working_area_t *source;
+	u32 buffer_size = 32768;
+	u8 write_command_buf[CFI_MAX_BUS_WIDTH];
+	u8 busy_pattern_buf[CFI_MAX_BUS_WIDTH];
+	u8 error_pattern_buf[CFI_MAX_BUS_WIDTH];
+	u32 write_command_val, busy_pattern_val, error_pattern_val;
+
+	/* algorithm register usage:
+	 * r0: source address (in RAM)
+	 * r1: target address (in Flash)
+	 * r2: count
+	 * r3: flash write command
+	 * r4: status byte (returned to host)
+	 * r5: busy test pattern
+	 * r6: error test pattern
+	 */
+
+	static const u32 word_32_code[] = {
+		0xe4904004,   /* loop:	ldr r4, [r0], #4 */
+		0xe5813000,   /* 		str r3, [r1] */
+		0xe5814000,   /* 		str r4, [r1] */
+		0xe5914000,   /* busy:  ldr r4, [r1] */
+		0xe0047005,   /*		and r7, r4, r5 */
+		0xe1570005,   /*		cmp r7, r5 */
+		0x1afffffb,   /*		bne busy */
+		0xe1140006,   /* 		tst r4, r6 */
+		0x1a000003,   /*		bne done */
+		0xe2522001,   /*		subs r2, r2, #1 */
+		0x0a000001,   /* 		beq done */
+		0xe2811004,   /*		add r1, r1 #4 */
+		0xeafffff2,   /* 		b loop */
+		0xeafffffe    /* done:	b -2 */
+	};
+
+	static const u32 word_16_code[] = {
+		0xe0d040b2,   /* loop:	ldrh r4, [r0], #2 */
+		0xe1c130b0,   /* 		strh r3, [r1] */
+		0xe1c140b0,   /* 		strh r4, [r1] */
+		0xe1d140b0,   /* busy	ldrh r4, [r1] */
+		0xe0047005,   /*		and r7, r4, r5 */
+		0xe1570005,   /*		cmp r7, r5 */
+		0x1afffffb,   /*		bne busy */
+		0xe1140006,   /* 		tst r4, r6 */
+		0x1a000003,   /*		bne done */
+		0xe2522001,   /*		subs r2, r2, #1 */
+		0x0a000001,   /* 		beq done */
+		0xe2811002,   /*		add r1, r1 #2 */
+		0xeafffff2,   /* 		b loop */
+		0xeafffffe    /* done:	b -2 */
+	};
+
+	static const u32 word_8_code[] = {
+		0xe4d04001,   /* loop:	ldrb r4, [r0], #1 */
+		0xe5c13000,   /* 		strb r3, [r1] */
+		0xe5c14000,   /* 		strb r4, [r1] */
+		0xe5d14000,   /* busy	ldrb r4, [r1] */
+		0xe0047005,   /*		and r7, r4, r5 */
+		0xe1570005,   /*		cmp r7, r5 */
+		0x1afffffb,   /*		bne busy */
+		0xe1140006,   /* 		tst r4, r6 */
+		0x1a000003,   /*		bne done */
+		0xe2522001,   /*		subs r2, r2, #1 */
+		0x0a000001,   /* 		beq done */
+		0xe2811001,   /*		add r1, r1 #1 */
+		0xeafffff2,   /* 		b loop */
+		0xeafffffe    /* done:	b -2 */
+	};
+	u32 target_code[CFI_MAX_INTEL_CODESIZE];
+	const u32 *target_code_src;
+	int target_code_size;
+	int retval = ERROR_OK;
+
+
+	cfi_intel_clear_status_register(bank);
+
+	armv4_5_info.common_magic = ARMV4_5_COMMON_MAGIC;
+	armv4_5_info.core_mode = ARMV4_5_MODE_SVC;
+	armv4_5_info.core_state = ARMV4_5_STATE_ARM;
+
+	/* If we are setting up the write_algorith, we need target_code_src */
+	/* if not we only need target_code_size.														*/
+	/* 																																	*/
+	/* However, we don't want to create multiple code paths, so we			*/
+	/* do the unecessary evaluation of target_code_src, which the 			*/
+	/* compiler will probably nicely optimize away if not needed				*/
+
+	/* prepare algorithm code for target endian */
+	switch (bank->bus_width)
+	{
+	case 1 :
+		target_code_src = word_8_code;
+		target_code_size = sizeof(word_8_code);
+		break;
+	case 2 :
+		target_code_src = word_16_code;
+		target_code_size = sizeof(word_16_code);
+		break;
+	case 4 :
+		target_code_src = word_32_code;
+		target_code_size = sizeof(word_32_code);
+		break;
+	default:
+		ERROR("Unsupported bank buswidth %d, can't do block memory writes", bank->bus_width);
+		return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
+	}
+
+	/* flash write code */
+	if (!cfi_info->write_algorithm)
+	{
+		if ( target_code_size > sizeof(target_code) )
+		{
+			WARNING("Internal error - target code buffer to small. Increase CFI_MAX_INTEL_CODESIZE and recompile.");
+			return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
+		}
+		cfi_fix_code_endian(target, target_code, target_code_src, target_code_size);
+
+		/* Get memory for block write handler */
+		retval = target_alloc_working_area(target, target_code_size, &cfi_info->write_algorithm);
+		if (retval != ERROR_OK)
+		{
+			WARNING("No working area available, can't do block memory writes");
+			return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
+		};
+
+		/* write algorithm code to working area */
+		retval = target_write_buffer(target, cfi_info->write_algorithm->address, target_code_size, (u8*)target_code);
+		if (retval != ERROR_OK)
+		{
+			ERROR("Unable to write block write code to target");
+			goto cleanup;
+		}
+	}
+
+	/* Get a workspace buffer for the data to flash starting with 32k size.
+	   Half size until buffer would be smaller 256 Bytem then fail back */
+	/* FIXME Why 256 bytes, why not 32 bytes (smallest flash write page */
+	while (target_alloc_working_area(target, buffer_size, &source) != ERROR_OK)
+	{
+		buffer_size /= 2;
+		if (buffer_size <= 256)
+		{
+			WARNING("no large enough working area available, can't do block memory writes");
+			retval = ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
+			goto cleanup;
+		}
+	};
+
+	/* setup algo registers */
+	init_reg_param(&reg_params[0], "r0", 32, PARAM_OUT);
+	init_reg_param(&reg_params[1], "r1", 32, PARAM_OUT);
+	init_reg_param(&reg_params[2], "r2", 32, PARAM_OUT);
+	init_reg_param(&reg_params[3], "r3", 32, PARAM_OUT);
+	init_reg_param(&reg_params[4], "r4", 32, PARAM_IN);
+	init_reg_param(&reg_params[5], "r5", 32, PARAM_OUT);
+	init_reg_param(&reg_params[6], "r6", 32, PARAM_OUT);
+
+	/* prepare command and status register patterns */
+	cfi_command(bank, 0x40, write_command_buf);
+	cfi_command(bank, 0x80, busy_pattern_buf);
+	cfi_command(bank, 0x7e, error_pattern_buf);
+
+	switch (bank->bus_width)
+	{
+	case 1 :
+		write_command_val = write_command_buf[0];
+		busy_pattern_val = busy_pattern_buf[0];
+		error_pattern_val = error_pattern_buf[0];
+		break;
+	case 2 :
+		write_command_val = target_buffer_get_u16(target, write_command_buf);
+		busy_pattern_val = target_buffer_get_u16(target, busy_pattern_buf);
+		error_pattern_val = target_buffer_get_u16(target, error_pattern_buf);
+		break;
+	case 4 :
+		write_command_val = target_buffer_get_u32(target, write_command_buf);
+		busy_pattern_val = target_buffer_get_u32(target, busy_pattern_buf);
+		error_pattern_val = target_buffer_get_u32(target, error_pattern_buf);
+		break;
+	default :
+		ERROR("Unsupported bank buswidth %d, can't do block memory writes", bank->bus_width);
+		retval = ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
+		goto cleanup;
+	}
+
+	INFO("Using target buffer at 0x%08x and of size 0x%04x", source->address, buffer_size );
+
+	/* Programming main loop */
+	while (count > 0)
+	{
+		u32 thisrun_count = (count > buffer_size) ? buffer_size : count;
+		u32 wsm_error;
+
+		target_write_buffer(target, source->address, thisrun_count, buffer);
+
+		buf_set_u32(reg_params[0].value, 0, 32, source->address);
+		buf_set_u32(reg_params[1].value, 0, 32, address);
+		buf_set_u32(reg_params[2].value, 0, 32, thisrun_count / bank->bus_width);
+
+		buf_set_u32(reg_params[3].value, 0, 32, write_command_val);
+		buf_set_u32(reg_params[5].value, 0, 32, busy_pattern_val);
+		buf_set_u32(reg_params[6].value, 0, 32, error_pattern_val);
+
+		INFO("Write 0x%04x bytes to flash at 0x%08x", thisrun_count, address );
+
+		/* Execute algorithm, assume breakpoint for last instruction */
+		retval = target->type->run_algorithm(target, 0, NULL, 7, reg_params,
+			cfi_info->write_algorithm->address,
+			cfi_info->write_algorithm->address + target_code_size - sizeof(u32),
+			10000, /* 10s should be enough for max. 32k of data */
+			&armv4_5_info);
+
+		/* On failure try a fall back to direct word writes */
+		if (retval != ERROR_OK)
+		{
+			cfi_intel_clear_status_register(bank);
+			ERROR("Execution of flash algorythm failed. Can't fall back. Please report.");
+			retval = ERROR_FLASH_OPERATION_FAILED;
+			//retval = ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
+			// FIXME To allow fall back or recovery, we must save the actual status
+			//       somewhere, so that a higher level code can start recovery.
+			goto cleanup;
+		}
+
+		/* Check return value from algo code */
+		wsm_error = buf_get_u32(reg_params[4].value, 0, 32) & error_pattern_val;
+		if (wsm_error)
+		{
+			/* read status register (outputs debug inforation) */
+			cfi_intel_wait_status_busy(bank, 100);
+			cfi_intel_clear_status_register(bank);
+			retval = ERROR_FLASH_OPERATION_FAILED;
+			goto cleanup;
+		}
+
+		buffer += thisrun_count;
+		address += thisrun_count;
+		count -= thisrun_count;
+	}
+
+	/* free up resources */
+cleanup:
+	if (source)
+		target_free_working_area(target, source);
+
+	if (cfi_info->write_algorithm)
+	{
+		target_free_working_area(target, cfi_info->write_algorithm);
+		cfi_info->write_algorithm = NULL;
+	}
+
+	destroy_reg_param(&reg_params[0]);
+	destroy_reg_param(&reg_params[1]);
+	destroy_reg_param(&reg_params[2]);
+	destroy_reg_param(&reg_params[3]);
+	destroy_reg_param(&reg_params[4]);
+	destroy_reg_param(&reg_params[5]);
+	destroy_reg_param(&reg_params[6]);
+
+	return retval;
+}
+
+int cfi_spansion_write_block(struct flash_bank_s *bank, u8 *buffer, u32 address, u32 count)
+{
+	cfi_flash_bank_t *cfi_info = bank->driver_priv;
+	cfi_spansion_pri_ext_t *pri_ext = cfi_info->pri_ext;
+	target_t *target = bank->target;
+	reg_param_t reg_params[10];
+	armv4_5_algorithm_t armv4_5_info;
+	working_area_t *source;
+	u32 buffer_size = 32768;
+	u8 write_command[CFI_MAX_BUS_WIDTH];
+	u32 status;
+	int i;
+	int retval;
+	int exit_code = ERROR_OK;
+
+	/* input parameters - */
+	/*	R0 = source address */
+	/*	R1 = destination address */
+	/*	R2 = number of writes */
+	/*	R3 = flash write command */
+	/*	R4 = constant to mask DQ7 bits (also used for Dq5 with shift) */
+	/* output parameters - */
+	/*	R5 = 0x80 ok 0x00 bad */
+	/* temp registers - */
+	/*	R6 = value read from flash to test status */
+	/*	R7 = holding register */
+	/* unlock registers - */
+	/*  R8 = unlock1_addr */
+	/*  R9 = unlock1_cmd */
+	/*  R10 = unlock2_addr */
+	/*  R11 = unlock2_cmd */
+
+	u32 word_32_code[] = {
+						/* 00008100 <sp_32_code>:		*/
+		0xe4905004,		/* ldr	r5, [r0], #4			*/
+		0xe5889000, 	/* str	r9, [r8]				*/
+		0xe58ab000, 	/* str	r11, [r10]				*/
+		0xe5883000, 	/* str	r3, [r8]				*/
+		0xe5815000, 	/* str	r5, [r1]				*/
+		0xe1a00000, 	/* nop							*/
+						/*								*/
+						/* 00008110 <sp_32_busy>:		*/
+		0xe5916000, 	/* ldr	r6, [r1]				*/
+		0xe0257006, 	/* eor	r7, r5, r6				*/
+		0xe0147007, 	/* ands	r7, r4, r7				*/
+		0x0a000007, 	/* beq	8140 <sp_32_cont> ; b if DQ7 == Data7 */
+		0xe0166124, 	/* ands	r6, r6, r4, lsr #2		*/
+		0x0afffff9, 	/* beq	8110 <sp_32_busy> ;	b if DQ5 low */
+		0xe5916000, 	/* ldr	r6, [r1]				*/
+		0xe0257006, 	/* eor	r7, r5, r6				*/
+		0xe0147007, 	/* ands	r7, r4, r7				*/
+		0x0a000001, 	/* beq	8140 <sp_32_cont> ; b if DQ7 == Data7 */
+		0xe3a05000, 	/* mov	r5, #0	; 0x0 - return 0x00, error */
+		0x1a000004, 	/* bne	8154 <sp_32_done>		*/
+						/*								*/
+				/* 00008140 <sp_32_cont>:				*/
+		0xe2522001, 	/* subs	r2, r2, #1	; 0x1		*/
+		0x03a05080, 	/* moveq	r5, #128	; 0x80	*/
+		0x0a000001, 	/* beq	8154 <sp_32_done>		*/
+		0xe2811004, 	/* add	r1, r1, #4	; 0x4		*/
+		0xeaffffe8, 	/* b	8100 <sp_32_code>		*/
+						/*								*/
+						/* 00008154 <sp_32_done>:		*/
+		0xeafffffe		/* b	8154 <sp_32_done>		*/
+		};
+
+		u32 word_16_code[] = {
+				/* 00008158 <sp_16_code>:              */
+		0xe0d050b2, 	/* ldrh	r5, [r0], #2		   */
+		0xe1c890b0, 	/* strh	r9, [r8]				*/
+		0xe1cab0b0, 	/* strh	r11, [r10]				*/
+		0xe1c830b0, 	/* strh	r3, [r8]				*/
+		0xe1c150b0, 	/* strh	r5, [r1]		       */
+		0xe1a00000, 	/* nop			(mov r0,r0)    */
+				/* 				       */
+				/* 00008168 <sp_16_busy>:	       */
+		0xe1d160b0, 	/* ldrh	r6, [r1]		       */
+		0xe0257006, 	/* eor	r7, r5, r6		       */
+		0xe0147007, 	/* ands	r7, r4, r7		       */
+		0x0a000007, 	/* beq	8198 <sp_16_cont>	       */
+		0xe0166124, 	/* ands	r6, r6, r4, lsr #2	       */
+		0x0afffff9, 	/* beq	8168 <sp_16_busy>	       */
+		0xe1d160b0, 	/* ldrh	r6, [r1]		       */
+		0xe0257006, 	/* eor	r7, r5, r6		       */
+		0xe0147007, 	/* ands	r7, r4, r7		       */
+		0x0a000001, 	/* beq	8198 <sp_16_cont>	       */
+		0xe3a05000, 	/* mov	r5, #0	; 0x0		       */
+		0x1a000004, 	/* bne	81ac <sp_16_done>	       */
+				/* 				       */
+				/* 00008198 <sp_16_cont>:	       */
+		0xe2522001, 	/* subs	r2, r2, #1	; 0x1	       */
+		0x03a05080, 	/* moveq	r5, #128	; 0x80 */
+		0x0a000001, 	/* beq	81ac <sp_16_done>	       */
+		0xe2811002, 	/* add	r1, r1, #2	; 0x2	       */
+		0xeaffffe8, 	/* b	8158 <sp_16_code>	       */
+				/* 				       */
+				/* 000081ac <sp_16_done>:	       */
+		0xeafffffe 	/* b	81ac <sp_16_done>              */
+		};
+
+		u32 word_8_code[] = {
+				/* 000081b0 <sp_16_code_end>:          */
+		0xe4d05001, 	/* ldrb	r5, [r0], #1		       */
+		0xe5c89000, 	/* strb	r9, [r8]				*/
+		0xe5cab000, 	/* strb	r11, [r10]				*/
+		0xe5c83000, 	/* strb	r3, [r8]				*/
+		0xe5c15000, 	/* strb	r5, [r1]		       */
+		0xe1a00000, 	/* nop			(mov r0,r0)    */
+				/* 				       */
+				/* 000081c0 <sp_8_busy>:	       */
+		0xe5d16000, 	/* ldrb	r6, [r1]		       */
+		0xe0257006, 	/* eor	r7, r5, r6		       */
+		0xe0147007, 	/* ands	r7, r4, r7		       */
+		0x0a000007, 	/* beq	81f0 <sp_8_cont>	       */
+		0xe0166124, 	/* ands	r6, r6, r4, lsr #2	       */
+		0x0afffff9, 	/* beq	81c0 <sp_8_busy>	       */
+		0xe5d16000, 	/* ldrb	r6, [r1]		       */
+		0xe0257006, 	/* eor	r7, r5, r6		       */
+		0xe0147007, 	/* ands	r7, r4, r7		       */
+		0x0a000001, 	/* beq	81f0 <sp_8_cont>	       */
+		0xe3a05000, 	/* mov	r5, #0	; 0x0		       */
+		0x1a000004, 	/* bne	8204 <sp_8_done>	       */
+				/* 				       */
+				/* 000081f0 <sp_8_cont>:	       */
+		0xe2522001, 	/* subs	r2, r2, #1	; 0x1	       */
+		0x03a05080, 	/* moveq	r5, #128	; 0x80 */
+		0x0a000001, 	/* beq	8204 <sp_8_done>	       */
+		0xe2811001, 	/* add	r1, r1, #1	; 0x1	       */
+		0xeaffffe8, 	/* b	81b0 <sp_16_code_end>	       */
+				/* 				       */
+				/* 00008204 <sp_8_done>:	       */
+		0xeafffffe 	/* b	8204 <sp_8_done>               */
+	};
+
+	armv4_5_info.common_magic = ARMV4_5_COMMON_MAGIC;
+	armv4_5_info.core_mode = ARMV4_5_MODE_SVC;
+	armv4_5_info.core_state = ARMV4_5_STATE_ARM;
+
+	/* flash write code */
+	if (!cfi_info->write_algorithm)
+	{
+		u8 *code_p;
+
+		/* convert bus-width dependent algorithm code to correct endiannes */
+		if (bank->bus_width == 1)
+		{
+			code_p = malloc(24 * 4);
+
+			for (i = 0; i < 24; i++)
+				target_buffer_set_u32(target, code_p + (i*4), word_8_code[i]);
+		}
+		else if (bank->bus_width == 2)
+		{
+			code_p = malloc(24 * 4);
+
+			for (i = 0; i < 24; i++)
+				target_buffer_set_u32(target, code_p + (i*4), word_16_code[i]);
+		}
+		else if (bank->bus_width == 4)
+		{
+			code_p = malloc(24 * 4);
+
+			for (i = 0; i < 24; i++)
+				target_buffer_set_u32(target, code_p + (i*4), word_32_code[i]);
+		}
+		else
+		{
+			return ERROR_FLASH_OPERATION_FAILED;
+		}
+
+		/* allocate working area */
+		retval=target_alloc_working_area(target, 24 * 4,
+				&cfi_info->write_algorithm);
+		if (retval != ERROR_OK)
+		{
+			return retval;
+		}
+
+		/* write algorithm code to working area */
+		target_write_buffer(target, cfi_info->write_algorithm->address, 24 * 4, code_p);
+
+		free(code_p);
+	}
+
+	while (target_alloc_working_area(target, buffer_size, &source) != ERROR_OK)
+	{
+		buffer_size /= 2;
+		if (buffer_size <= 256)
+		{
+			/* if we already allocated the writing code, but failed to get a buffer, free the algorithm */
+			if (cfi_info->write_algorithm)
+				target_free_working_area(target, cfi_info->write_algorithm);
+
+			WARNING("not enough working area available, can't do block memory writes");
+			return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
+		}
+	};
+
+	init_reg_param(&reg_params[0], "r0", 32, PARAM_OUT);
+	init_reg_param(&reg_params[1], "r1", 32, PARAM_OUT);
+	init_reg_param(&reg_params[2], "r2", 32, PARAM_OUT);
+	init_reg_param(&reg_params[3], "r3", 32, PARAM_OUT);
+	init_reg_param(&reg_params[4], "r4", 32, PARAM_OUT);
+	init_reg_param(&reg_params[5], "r5", 32, PARAM_IN);
+	init_reg_param(&reg_params[6], "r8", 32, PARAM_OUT);
+	init_reg_param(&reg_params[7], "r9", 32, PARAM_OUT);
+	init_reg_param(&reg_params[8], "r10", 32, PARAM_OUT);
+	init_reg_param(&reg_params[9], "r11", 32, PARAM_OUT);
+
+	while (count > 0)
+	{
+		u32 thisrun_count = (count > buffer_size) ? buffer_size : count;
+
+		target_write_buffer(target, source->address, thisrun_count, buffer);
+
+		buf_set_u32(reg_params[0].value, 0, 32, source->address);
+		buf_set_u32(reg_params[1].value, 0, 32, address);
+		buf_set_u32(reg_params[2].value, 0, 32, thisrun_count / bank->bus_width);
+		cfi_command(bank, 0xA0, write_command);
+		buf_set_u32(reg_params[3].value, 0, 32, buf_get_u32(write_command, 0, 32));
+		cfi_command(bank, 0x80, write_command);
+		buf_set_u32(reg_params[4].value, 0, 32, buf_get_u32(write_command, 0, 32));
+		buf_set_u32(reg_params[6].value, 0, 32, flash_address(bank, 0, pri_ext->_unlock1));
+		buf_set_u32(reg_params[7].value, 0, 32, 0xaa);
+		buf_set_u32(reg_params[8].value, 0, 32, flash_address(bank, 0, pri_ext->_unlock2));
+		buf_set_u32(reg_params[9].value, 0, 32, 0x55);
+
+		retval = target->type->run_algorithm(target, 0, NULL, 10, reg_params,
+						     cfi_info->write_algorithm->address,
+						     cfi_info->write_algorithm->address + ((24 * 4) - 4),
+						     10000, &armv4_5_info);
+
+		status = buf_get_u32(reg_params[5].value, 0, 32);
+
+		if ((retval != ERROR_OK) || status != 0x80)
+		{
+			DEBUG("status: 0x%x", status);
+			exit_code = ERROR_FLASH_OPERATION_FAILED;
+			break;
+		}
+
+		buffer += thisrun_count;
+		address += thisrun_count;
+		count -= thisrun_count;
+	}
+
+	target_free_working_area(target, source);
+
+	destroy_reg_param(&reg_params[0]);
+	destroy_reg_param(&reg_params[1]);
+	destroy_reg_param(&reg_params[2]);
+	destroy_reg_param(&reg_params[3]);
+	destroy_reg_param(&reg_params[4]);
+	destroy_reg_param(&reg_params[5]);
+	destroy_reg_param(&reg_params[6]);
+	destroy_reg_param(&reg_params[7]);
+	destroy_reg_param(&reg_params[8]);
+	destroy_reg_param(&reg_params[9]);
+
+	return exit_code;
+}
+
+int cfi_intel_write_word(struct flash_bank_s *bank, u8 *word, u32 address)
+{
+	cfi_flash_bank_t *cfi_info = bank->driver_priv;
+	target_t *target = bank->target;
+	u8 command[8];
+
+	cfi_intel_clear_status_register(bank);
+	cfi_command(bank, 0x40, command);
+	target->type->write_memory(target, address, bank->bus_width, 1, command);
+
+	target->type->write_memory(target, address, bank->bus_width, 1, word);
+
+	if (cfi_intel_wait_status_busy(bank, 1000 * (1 << cfi_info->word_write_timeout_max)) != 0x80)
+	{
+		cfi_command(bank, 0xff, command);
+		target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);
+
+		ERROR("couldn't write word at base 0x%x, address %x", bank->base, address);
+		return ERROR_FLASH_OPERATION_FAILED;
+	}
+
+	return ERROR_OK;
+}
+
+int cfi_intel_write_words(struct flash_bank_s *bank, u8 *word, u32 wordcount, u32 address)
+{
+	cfi_flash_bank_t *cfi_info = bank->driver_priv;
+	target_t *target = bank->target;
+	u8 command[8];
+
+	/* Calculate buffer size and boundary mask */
+	u32 buffersize = 1UL << cfi_info->max_buf_write_size;
+	u32 buffermask = buffersize-1;
+	u32 bufferwsize;
+
+	/* Check for valid range */
+	if (address & buffermask)
+	{
+		ERROR("Write address at base 0x%x, address %x not aligned to 2^%d boundary", bank->base, address, cfi_info->max_buf_write_size);
+		return ERROR_FLASH_OPERATION_FAILED;
+	}
+	switch(bank->chip_width)
+	{
+	case 4 : bufferwsize = buffersize / 4; break;
+	case 2 : bufferwsize = buffersize / 2; break;
+	case 1 : bufferwsize = buffersize; break;
+	default:
+		ERROR("Unsupported chip width %d", bank->chip_width);
+		return ERROR_FLASH_OPERATION_FAILED;
+	}
+
+	/* Check for valid size */
+	if (wordcount > bufferwsize)
+	{
+		ERROR("Number of data words %d exceeds available buffersize %d", wordcount, buffersize);
+		return ERROR_FLASH_OPERATION_FAILED;
+	}
+
+	/* Write to flash buffer */
+	cfi_intel_clear_status_register(bank);
+
+	/* Initiate buffer operation _*/
+	cfi_command(bank, 0xE8, command);
+	target->type->write_memory(target, address, bank->bus_width, 1, command);
+	if (cfi_intel_wait_status_busy(bank, 1000 * (1 << cfi_info->buf_write_timeout_max)) != 0x80)
+	{
+		cfi_command(bank, 0xff, command);
+		target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);
+
+		ERROR("couldn't start buffer write operation at base 0x%x, address %x", bank->base, address);
+		return ERROR_FLASH_OPERATION_FAILED;
+	}
+
+	/* Write buffer wordcount-1 and data words */
+	cfi_command(bank, bufferwsize-1, command);
+	target->type->write_memory(target, address, bank->bus_width, 1, command);
+
+	target->type->write_memory(target, address, bank->bus_width, bufferwsize, word);
+
+	/* Commit write operation */
+	cfi_command(bank, 0xd0, command);
+	target->type->write_memory(target, address, bank->bus_width, 1, command);
+	if (cfi_intel_wait_status_busy(bank, 1000 * (1 << cfi_info->buf_write_timeout_max)) != 0x80)
+	{
+		cfi_command(bank, 0xff, command);
+		target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);
+
+		ERROR("Buffer write at base 0x%x, address %x failed.", bank->base, address);
+		return ERROR_FLASH_OPERATION_FAILED;
+	}
+
+	return ERROR_OK;
+}
+
+int cfi_spansion_write_word(struct flash_bank_s *bank, u8 *word, u32 address)
+{
+	cfi_flash_bank_t *cfi_info = bank->driver_priv;
+	cfi_spansion_pri_ext_t *pri_ext = cfi_info->pri_ext;
+	target_t *target = bank->target;
+	u8 command[8];
+
+	cfi_command(bank, 0xaa, command);
+	target->type->write_memory(target, flash_address(bank, 0, pri_ext->_unlock1), bank->bus_width, 1, command);
+
+	cfi_command(bank, 0x55, command);
+	target->type->write_memory(target, flash_address(bank, 0, pri_ext->_unlock2), bank->bus_width, 1, command);
+
+	cfi_command(bank, 0xa0, command);
+	target->type->write_memory(target, flash_address(bank, 0, pri_ext->_unlock1), bank->bus_width, 1, command);
+
+	target->type->write_memory(target, address, bank->bus_width, 1, word);
+
+	if (cfi_spansion_wait_status_busy(bank, 1000 * (1 << cfi_info->word_write_timeout_max)) != ERROR_OK)
+	{
+		cfi_command(bank, 0xf0, command);
+		target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);
+
+		ERROR("couldn't write word at base 0x%x, address %x", bank->base, address);
+		return ERROR_FLASH_OPERATION_FAILED;
+	}
+
+	return ERROR_OK;
+}
+
+int cfi_write_word(struct flash_bank_s *bank, u8 *word, u32 address)
+{
+	cfi_flash_bank_t *cfi_info = bank->driver_priv;
+
+	switch(cfi_info->pri_id)
+	{
+		case 1:
+		case 3:
+			return cfi_intel_write_word(bank, word, address);
+			break;
+		case 2:
+			return cfi_spansion_write_word(bank, word, address);
+			break;
+		default:
+			ERROR("cfi primary command set %i unsupported", cfi_info->pri_id);
+			break;
+	}
+
+	return ERROR_FLASH_OPERATION_FAILED;
+}
+
+int cfi_write_words(struct flash_bank_s *bank, u8 *word, u32 wordcount, u32 address)
+{
+	cfi_flash_bank_t *cfi_info = bank->driver_priv;
+
+	switch(cfi_info->pri_id)
+	{
+		case 1:
+		case 3:
+			return cfi_intel_write_words(bank, word, wordcount, address);
+			break;
+		case 2:
+			//return cfi_spansion_write_words(bank, word, address);
+			ERROR("cfi primary command set %i unimplemented - FIXME", cfi_info->pri_id);
+			break;
+		default:
+			ERROR("cfi primary command set %i unsupported", cfi_info->pri_id);
+			break;
+	}
+
+	return ERROR_FLASH_OPERATION_FAILED;
+}
+
+int cfi_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count)
+{
+	cfi_flash_bank_t *cfi_info = bank->driver_priv;
+	target_t *target = bank->target;
+	u32 address = bank->base + offset;	/* address of first byte to be programmed */
+	u32 write_p, copy_p;
+	int align;	/* number of unaligned bytes */
+	int blk_count; /* number of bus_width bytes for block copy */
+	u8 current_word[CFI_MAX_BUS_WIDTH * 4];	/* word (bus_width size) currently being programmed */
+	int i;
+	int retval;
+
+	if (offset + count > bank->size)
+		return ERROR_FLASH_DST_OUT_OF_BANK;
+
+	if (cfi_info->qry[0] != 'Q')
+		return ERROR_FLASH_BANK_NOT_PROBED;
+
+	/* start at the first byte of the first word (bus_width size) */
+	write_p = address & ~(bank->bus_width - 1);
+	if ((align = address - write_p) != 0)
+	{
+		INFO("Fixup %d unaligned head bytes", align );
+
+		for (i = 0; i < bank->bus_width; i++)
+			current_word[i] = 0;
+		copy_p = write_p;
+
+		/* copy bytes before the first write address */
+		for (i = 0; i < align; ++i, ++copy_p)
+		{
+			u8 byte;
+			target->type->read_memory(target, copy_p, 1, 1, &byte);
+			cfi_add_byte(bank, current_word, byte);
+		}
+
+		/* add bytes from the buffer */
+		for (; (i < bank->bus_width) && (count > 0); i++)
+		{
+			cfi_add_byte(bank, current_word, *buffer++);
+			count--;
+			copy_p++;
+		}
+
+		/* if the buffer is already finished, copy bytes after the last write address */
+		for (; (count == 0) && (i < bank->bus_width); ++i, ++copy_p)
+		{
+			u8 byte;
+			target->type->read_memory(target, copy_p, 1, 1, &byte);
+			cfi_add_byte(bank, current_word, byte);
+		}
+
+		retval = cfi_write_word(bank, current_word, write_p);
+		if (retval != ERROR_OK)
+			return retval;
+		write_p = copy_p;
+	}
+
+	/* handle blocks of bus_size aligned bytes */
+	blk_count = count & ~(bank->bus_width - 1); /* round down, leave tail bytes */
+	switch(cfi_info->pri_id)
+	{
+		/* try block writes (fails without working area) */
+		case 1:
+		case 3:
+			retval = cfi_intel_write_block(bank, buffer, write_p, blk_count);
+			break;
+		case 2:
+			retval = cfi_spansion_write_block(bank, buffer, write_p, blk_count);
+			break;
+		default:
+			ERROR("cfi primary command set %i unsupported", cfi_info->pri_id);
+			retval = ERROR_FLASH_OPERATION_FAILED;
+			break;
+	}
+	if (retval == ERROR_OK)
+	{
+		/* Increment pointers and decrease count on succesful block write */
+		buffer += blk_count;
+		write_p += blk_count;
+		count -= blk_count;
+	}
+	else
+	{
+		if (retval == ERROR_TARGET_RESOURCE_NOT_AVAILABLE)
+		{
+			u32 buffersize = 1UL << cfi_info->max_buf_write_size;
+			u32 buffermask = buffersize-1;
+			u32 bufferwsize;
+
+			switch(bank->chip_width)
+			{
+			case 4 : bufferwsize = buffersize / 4; break;
+			case 2 : bufferwsize = buffersize / 2; break;
+			case 1 : bufferwsize = buffersize; break;
+			default:
+				ERROR("Unsupported chip width %d", bank->chip_width);
+				return ERROR_FLASH_OPERATION_FAILED;
+			}
+
+			/* fall back to memory writes */
+			while (count > bank->bus_width)
+			{
+				if ((write_p & 0xff) == 0)
+				{
+					INFO("Programming at %08x, count %08x bytes remaining", write_p, count);
+				}
+#if 0
+				/* NB! this is broken for spansion! */
+				if ((count > bufferwsize) && !(write_p & buffermask))
+				{
+					retval = cfi_write_words(bank, buffer, bufferwsize, write_p);
+					if (retval != ERROR_OK)
+						return retval;
+
+					buffer += buffersize;
+					write_p += buffersize;
+					count -= buffersize;
+				}
+				else
+#endif
+				{
+					for (i = 0; i < bank->bus_width; i++)
+						current_word[i] = 0;
+
+					for (i = 0; i < bank->bus_width; i++)
+					{
+						cfi_add_byte(bank, current_word, *buffer++);
+					}
+
+					retval = cfi_write_word(bank, current_word, write_p);
+					if (retval != ERROR_OK)
+						return retval;
+
+					write_p += bank->bus_width;
+					count -= bank->bus_width;
+				}
+			}
+		}
+		else
+			return retval;
+	}
+
+	/* return to read array mode, so we can read from flash again for padding */
+	cfi_command(bank, 0xf0, current_word);
+	target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, current_word);
+	cfi_command(bank, 0xff, current_word);
+	target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, current_word);
+
+	/* handle unaligned tail bytes */
+	if (count > 0)
+	{
+		INFO("Fixup %d unaligned tail bytes", count );
+
+		copy_p = write_p;
+		for (i = 0; i < bank->bus_width; i++)
+			current_word[i] = 0;
+
+		for (i = 0; (i < bank->bus_width) && (count > 0); ++i, ++copy_p)
+		{
+			cfi_add_byte(bank, current_word, *buffer++);
+			count--;
+		}
+		for (; i < bank->bus_width; ++i, ++copy_p)
+		{
+			u8 byte;
+			target->type->read_memory(target, copy_p, 1, 1, &byte);
+			cfi_add_byte(bank, current_word, byte);
+		}
+		retval = cfi_write_word(bank, current_word, write_p);
+		if (retval != ERROR_OK)
+			return retval;
+	}
+
+	/* return to read array mode */
+	cfi_command(bank, 0xf0, current_word);
+	target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, current_word);
+	cfi_command(bank, 0xff, current_word);
+	target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, current_word);
+
+	return ERROR_OK;
+}
+
+void cfi_fixup_atmel_reversed_erase_regions(flash_bank_t *bank, void *param)
+{
+	cfi_flash_bank_t *cfi_info = bank->driver_priv;
+	cfi_spansion_pri_ext_t *pri_ext = cfi_info->pri_ext;
+
+	pri_ext->_reversed_geometry = 1;
+}
+
+void cfi_fixup_0002_erase_regions(flash_bank_t *bank, void *param)
+{
+	int i;
+	cfi_flash_bank_t *cfi_info = bank->driver_priv;
+	cfi_spansion_pri_ext_t *pri_ext = cfi_info->pri_ext;
+
+	if ((pri_ext->_reversed_geometry) || (pri_ext->TopBottom == 3))
+	{
+		DEBUG("swapping reversed erase region information on cmdset 0002 device");
+
+		for (i = 0; i < cfi_info->num_erase_regions / 2; i++)
+		{
+			int j = (cfi_info->num_erase_regions - 1) - i;
+			u32 swap;
+
+			swap = cfi_info->erase_region_info[i];
+			cfi_info->erase_region_info[i] = cfi_info->erase_region_info[j];
+			cfi_info->erase_region_info[j] = swap;
+		}
+	}
+}
+
+void cfi_fixup_0002_unlock_addresses(flash_bank_t *bank, void *param)
+{
+	cfi_flash_bank_t *cfi_info = bank->driver_priv;
+	cfi_spansion_pri_ext_t *pri_ext = cfi_info->pri_ext;
+	cfi_unlock_addresses_t *unlock_addresses = param;
+
+	pri_ext->_unlock1 = unlock_addresses->unlock1;
+	pri_ext->_unlock2 = unlock_addresses->unlock2;
+}
+
+int cfi_probe(struct flash_bank_s *bank)
+{
+	cfi_flash_bank_t *cfi_info = bank->driver_priv;
+	target_t *target = bank->target;
+	u8 command[8];
+	int num_sectors = 0;
+	int i;
+	int sector = 0;
+	u32 offset = 0;
+	u32 unlock1 = 0x555;
+	u32 unlock2 = 0x2aa;
+
+	cfi_info->probed = 0;
+
+	/* JEDEC standard JESD21C uses 0x5555 and 0x2aaa as unlock addresses,
+	 * while CFI compatible AMD/Spansion flashes use 0x555 and 0x2aa
+	 */
+	if (cfi_info->jedec_probe)
+	{
+		unlock1 = 0x5555;
+		unlock2 = 0x2aaa;
+	}
+
+	/* switch to read identifier codes mode ("AUTOSELECT") */
+	cfi_command(bank, 0xaa, command);
+	target->type->write_memory(target, flash_address(bank, 0, unlock1), bank->bus_width, 1, command);
+	cfi_command(bank, 0x55, command);
+	target->type->write_memory(target, flash_address(bank, 0, unlock2), bank->bus_width, 1, command);
+	cfi_command(bank, 0x90, command);
+	target->type->write_memory(target, flash_address(bank, 0, unlock1), bank->bus_width, 1, command);
+
+	if (bank->chip_width == 1)
+	{
+		u8 manufacturer, device_id;
+		target_read_u8(target, bank->base + 0x0, &manufacturer);
+		target_read_u8(target, bank->base + 0x1, &device_id);
+		cfi_info->manufacturer = manufacturer;
+		cfi_info->device_id = device_id;
+	}
+	else if (bank->chip_width == 2)
+	{
+		target_read_u16(target, bank->base + 0x0, &cfi_info->manufacturer);
+		target_read_u16(target, bank->base + 0x2, &cfi_info->device_id);
+	}
+
+	/* switch back to read array mode */
+	cfi_command(bank, 0xf0, command);
+	target->type->write_memory(target, flash_address(bank, 0, 0x00), bank->bus_width, 1, command);
+	cfi_command(bank, 0xff, command);
+	target->type->write_memory(target, flash_address(bank, 0, 0x00), bank->bus_width, 1, command);
+
+	cfi_fixup(bank, cfi_jedec_fixups);
+
+	/* query only if this is a CFI compatible flash,
+	 * otherwise the relevant info has already been filled in
+	 */
+	if (cfi_info->not_cfi == 0)
+	{
+		/* enter CFI query mode
+		 * according to JEDEC Standard No. 68.01,
+		 * a single bus sequence with address = 0x55, data = 0x98 should put
+		 * the device into CFI query mode.
+		 *
+		 * SST flashes clearly violate this, and we will consider them incompatbile for now
+		 */
+		cfi_command(bank, 0x98, command);
+		target->type->write_memory(target, flash_address(bank, 0, 0x55), bank->bus_width, 1, command);
+
+		cfi_info->qry[0] = cfi_query_u8(bank, 0, 0x10);
+		cfi_info->qry[1] = cfi_query_u8(bank, 0, 0x11);
+		cfi_info->qry[2] = cfi_query_u8(bank, 0, 0x12);
+
+		DEBUG("CFI qry returned: 0x%2.2x 0x%2.2x 0x%2.2x", cfi_info->qry[0], cfi_info->qry[1], cfi_info->qry[2]);
+
+		if ((cfi_info->qry[0] != 'Q') || (cfi_info->qry[1] != 'R') || (cfi_info->qry[2] != 'Y'))
+		{
+			cfi_command(bank, 0xf0, command);
+			target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);
+			cfi_command(bank, 0xff, command);
+			target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);
+			return ERROR_FLASH_BANK_INVALID;
+		}
+
+		cfi_info->pri_id = cfi_query_u16(bank, 0, 0x13);
+		cfi_info->pri_addr = cfi_query_u16(bank, 0, 0x15);
+		cfi_info->alt_id = cfi_query_u16(bank, 0, 0x17);
+		cfi_info->alt_addr = cfi_query_u16(bank, 0, 0x19);
+
+		DEBUG("qry: '%c%c%c', pri_id: 0x%4.4x, pri_addr: 0x%4.4x, alt_id: 0x%4.4x, alt_addr: 0x%4.4x", cfi_info->qry[0], cfi_info->qry[1], cfi_info->qry[2], cfi_info->pri_id, cfi_info->pri_addr, cfi_info->alt_id, cfi_info->alt_addr);
+
+		cfi_info->vcc_min = cfi_query_u8(bank, 0, 0x1b);
+		cfi_info->vcc_max = cfi_query_u8(bank, 0, 0x1c);
+		cfi_info->vpp_min = cfi_query_u8(bank, 0, 0x1d);
+		cfi_info->vpp_max = cfi_query_u8(bank, 0, 0x1e);
+		cfi_info->word_write_timeout_typ = cfi_query_u8(bank, 0, 0x1f);
+		cfi_info->buf_write_timeout_typ = cfi_query_u8(bank, 0, 0x20);
+		cfi_info->block_erase_timeout_typ = cfi_query_u8(bank, 0, 0x21);
+		cfi_info->chip_erase_timeout_typ = cfi_query_u8(bank, 0, 0x22);
+		cfi_info->word_write_timeout_max = cfi_query_u8(bank, 0, 0x23);
+		cfi_info->buf_write_timeout_max = cfi_query_u8(bank, 0, 0x24);
+		cfi_info->block_erase_timeout_max = cfi_query_u8(bank, 0, 0x25);
+		cfi_info->chip_erase_timeout_max = cfi_query_u8(bank, 0, 0x26);
+
+		DEBUG("Vcc min: %1.1x.%1.1x, Vcc max: %1.1x.%1.1x, Vpp min: %1.1x.%1.1x, Vpp max: %1.1x.%1.1x",
+			(cfi_info->vcc_min & 0xf0) >> 4, cfi_info->vcc_min & 0x0f,
+			(cfi_info->vcc_max & 0xf0) >> 4, cfi_info->vcc_max & 0x0f,
+			(cfi_info->vpp_min & 0xf0) >> 4, cfi_info->vpp_min & 0x0f,
+			(cfi_info->vpp_max & 0xf0) >> 4, cfi_info->vpp_max & 0x0f);
+		DEBUG("typ. word write timeout: %u, typ. buf write timeout: %u, typ. block erase timeout: %u, typ. chip erase timeout: %u", 1 << cfi_info->word_write_timeout_typ, 1 << cfi_info->buf_write_timeout_typ,
+			1 << cfi_info->block_erase_timeout_typ, 1 << cfi_info->chip_erase_timeout_typ);
+		DEBUG("max. word write timeout: %u, max. buf write timeout: %u, max. block erase timeout: %u, max. chip erase timeout: %u", (1 << cfi_info->word_write_timeout_max) * (1 << cfi_info->word_write_timeout_typ),
+			(1 << cfi_info->buf_write_timeout_max) * (1 << cfi_info->buf_write_timeout_typ),
+			(1 << cfi_info->block_erase_timeout_max) * (1 << cfi_info->block_erase_timeout_typ),
+			(1 << cfi_info->chip_erase_timeout_max) * (1 << cfi_info->chip_erase_timeout_typ));
+
+		cfi_info->dev_size = cfi_query_u8(bank, 0, 0x27);
+		cfi_info->interface_desc = cfi_query_u16(bank, 0, 0x28);
+		cfi_info->max_buf_write_size = cfi_query_u16(bank, 0, 0x2a);
+		cfi_info->num_erase_regions = cfi_query_u8(bank, 0, 0x2c);
+
+		DEBUG("size: 0x%x, interface desc: %i, max buffer write size: %x", 1 << cfi_info->dev_size, cfi_info->interface_desc, (1 << cfi_info->max_buf_write_size));
+
+		if (((1 << cfi_info->dev_size) * bank->bus_width / bank->chip_width) != bank->size)
+		{
+			WARNING("configuration specifies 0x%x size, but a 0x%x size flash was found", bank->size, 1 << cfi_info->dev_size);
+		}
+
+		if (cfi_info->num_erase_regions)
+		{
+			cfi_info->erase_region_info = malloc(4 * cfi_info->num_erase_regions);
+			for (i = 0; i < cfi_info->num_erase_regions; i++)
+			{
+				cfi_info->erase_region_info[i] = cfi_query_u32(bank, 0, 0x2d + (4 * i));
+				DEBUG("erase region[%i]: %i blocks of size 0x%x", i, (cfi_info->erase_region_info[i] & 0xffff) + 1, (cfi_info->erase_region_info[i] >> 16) * 256);
+			}
+		}
+		else
+		{
+			cfi_info->erase_region_info = NULL;
+		}
+
+		/* We need to read the primary algorithm extended query table before calculating
+		 * the sector layout to be able to apply fixups
+		 */
+		switch(cfi_info->pri_id)
+		{
+			/* Intel command set (standard and extended) */
+			case 0x0001:
+			case 0x0003:
+				cfi_read_intel_pri_ext(bank);
+				break;
+			/* AMD/Spansion, Atmel, ... command set */
+			case 0x0002:
+				cfi_read_0002_pri_ext(bank);
+				break;
+			default:
+				ERROR("cfi primary command set %i unsupported", cfi_info->pri_id);
+				break;
+		}
+
+		/* return to read array mode
+		 * we use both reset commands, as some Intel flashes fail to recognize the 0xF0 command
+		 */
+		cfi_command(bank, 0xf0, command);
+		target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);
+		cfi_command(bank, 0xff, command);
+		target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);
+	}
+
+	/* apply fixups depending on the primary command set */
+	switch(cfi_info->pri_id)
+	{
+		/* Intel command set (standard and extended) */
+		case 0x0001:
+		case 0x0003:
+			cfi_fixup(bank, cfi_0001_fixups);
+			break;
+		/* AMD/Spansion, Atmel, ... command set */
+		case 0x0002:
+			cfi_fixup(bank, cfi_0002_fixups);
+			break;
+		default:
+			ERROR("cfi primary command set %i unsupported", cfi_info->pri_id);
+			break;
+	}
+
+	if (cfi_info->num_erase_regions == 0)
+	{
+		/* a device might have only one erase block, spanning the whole device */
+		bank->num_sectors = 1;
+		bank->sectors = malloc(sizeof(flash_sector_t));
+
+		bank->sectors[sector].offset = 0x0;
+		bank->sectors[sector].size = bank->size;
+		bank->sectors[sector].is_erased = -1;
+		bank->sectors[sector].is_protected = -1;
+	}
+	else
+	{
+		for (i = 0; i < cfi_info->num_erase_regions; i++)
+		{
+			num_sectors += (cfi_info->erase_region_info[i] & 0xffff) + 1;
+		}
+
+		bank->num_sectors = num_sectors;
+		bank->sectors = malloc(sizeof(flash_sector_t) * num_sectors);
+
+		for (i = 0; i < cfi_info->num_erase_regions; i++)
+		{
+			int j;
+			for (j = 0; j < (cfi_info->erase_region_info[i] & 0xffff) + 1; j++)
+			{
+				bank->sectors[sector].offset = offset;
+				bank->sectors[sector].size = ((cfi_info->erase_region_info[i] >> 16) * 256) * bank->bus_width / bank->chip_width;
+				offset += bank->sectors[sector].size;
+				bank->sectors[sector].is_erased = -1;
+				bank->sectors[sector].is_protected = -1;
+				sector++;
+			}
+		}
+	}
+	
+	cfi_info->probed = 1;
+
+	return ERROR_OK;
+}
+
+int cfi_auto_probe(struct flash_bank_s *bank)
+{
+	cfi_flash_bank_t *cfi_info = bank->driver_priv;
+	if (cfi_info->probed)
+		return ERROR_OK;
+	return cfi_probe(bank);
+}
+
+int cfi_erase_check(struct flash_bank_s *bank)
+{
+	cfi_flash_bank_t *cfi_info = bank->driver_priv;
+	target_t *target = bank->target;
+	int i;
+	int retval;
+
+	if (!cfi_info->erase_check_algorithm)
+	{
+		u32 erase_check_code[] =
+		{
+			0xe4d03001,	/* ldrb r3, [r0], #1	*/
+			0xe0022003, /* and r2, r2, r3 		*/
+			0xe2511001, /* subs r1, r1, #1		*/
+			0x1afffffb,	/* b -4 				*/
+			0xeafffffe	/* b 0 					*/
+		};
+
+		/* make sure we have a working area */
+		if (target_alloc_working_area(target, 20, &cfi_info->erase_check_algorithm) != ERROR_OK)
+		{
+			WARNING("no working area available, falling back to slow memory reads");
+		}
+		else
+		{
+			u8 erase_check_code_buf[5 * 4];
+
+			for (i = 0; i < 5; i++)
+				target_buffer_set_u32(target, erase_check_code_buf + (i*4), erase_check_code[i]);
+
+			/* write algorithm code to working area */
+			target->type->write_memory(target, cfi_info->erase_check_algorithm->address, 4, 5, erase_check_code_buf);
+		}
+	}
+
+	if (!cfi_info->erase_check_algorithm)
+	{
+		u32 *buffer = malloc(4096);
+
+		for (i = 0; i < bank->num_sectors; i++)
+		{
+			u32 address = bank->base + bank->sectors[i].offset;
+			u32 size = bank->sectors[i].size;
+			u32 check = 0xffffffffU;
+			int erased = 1;
+
+			while (size > 0)
+			{
+				u32 thisrun_size = (size > 4096) ? 4096 : size;
+				int j;
+
+				target->type->read_memory(target, address, 4, thisrun_size / 4, (u8*)buffer);
+
+				for (j = 0; j < thisrun_size / 4; j++)
+					check &= buffer[j];
+
+				if (check != 0xffffffff)
+				{
+					erased = 0;
+					break;
+				}
+
+				size -= thisrun_size;
+				address += thisrun_size;
+			}
+
+			bank->sectors[i].is_erased = erased;
+		}
+
+		free(buffer);
+	}
+	else
+	{
+		for (i = 0; i < bank->num_sectors; i++)
+		{
+			u32 address = bank->base + bank->sectors[i].offset;
+			u32 size = bank->sectors[i].size;
+
+			reg_param_t reg_params[3];
+			armv4_5_algorithm_t armv4_5_info;
+
+			armv4_5_info.common_magic = ARMV4_5_COMMON_MAGIC;
+			armv4_5_info.core_mode = ARMV4_5_MODE_SVC;
+			armv4_5_info.core_state = ARMV4_5_STATE_ARM;
+
+			init_reg_param(&reg_params[0], "r0", 32, PARAM_OUT);
+			buf_set_u32(reg_params[0].value, 0, 32, address);
+
+			init_reg_param(&reg_params[1], "r1", 32, PARAM_OUT);
+			buf_set_u32(reg_params[1].value, 0, 32, size);
+
+			init_reg_param(&reg_params[2], "r2", 32, PARAM_IN_OUT);
+			buf_set_u32(reg_params[2].value, 0, 32, 0xff);
+
+			if ((retval = target->type->run_algorithm(target, 0, NULL, 3, reg_params, cfi_info->erase_check_algorithm->address, cfi_info->erase_check_algorithm->address + 0x10, 10000, &armv4_5_info)) != ERROR_OK)
+				return ERROR_FLASH_OPERATION_FAILED;
+
+			if (buf_get_u32(reg_params[2].value, 0, 32) == 0xff)
+				bank->sectors[i].is_erased = 1;
+			else
+				bank->sectors[i].is_erased = 0;
+
+			destroy_reg_param(&reg_params[0]);
+			destroy_reg_param(&reg_params[1]);
+			destroy_reg_param(&reg_params[2]);
+		}
+	}
+
+	return ERROR_OK;
+}
+
+int cfi_intel_protect_check(struct flash_bank_s *bank)
+{
+	cfi_flash_bank_t *cfi_info = bank->driver_priv;
+	cfi_intel_pri_ext_t *pri_ext = cfi_info->pri_ext;
+	target_t *target = bank->target;
+	u8 command[CFI_MAX_BUS_WIDTH];
+	int i;
+
+	/* check if block lock bits are supported on this device */
+	if (!(pri_ext->blk_status_reg_mask & 0x1))
+		return ERROR_FLASH_OPERATION_FAILED;
+
+	cfi_command(bank, 0x90, command);
+	target->type->write_memory(target, flash_address(bank, 0, 0x55), bank->bus_width, 1, command);
+
+	for (i = 0; i < bank->num_sectors; i++)
+	{
+		u8 block_status = cfi_get_u8(bank, i, 0x2);
+
+		if (block_status & 1)
+			bank->sectors[i].is_protected = 1;
+		else
+			bank->sectors[i].is_protected = 0;
+	}
+
+	cfi_command(bank, 0xff, command);
+	target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);
+
+	return ERROR_OK;
+}
+
+int cfi_spansion_protect_check(struct flash_bank_s *bank)
+{
+	cfi_flash_bank_t *cfi_info = bank->driver_priv;
+	cfi_spansion_pri_ext_t *pri_ext = cfi_info->pri_ext;
+	target_t *target = bank->target;
+	u8 command[8];
+	int i;
+
+	cfi_command(bank, 0xaa, command);
+	target->type->write_memory(target, flash_address(bank, 0, pri_ext->_unlock1), bank->bus_width, 1, command);
+
+	cfi_command(bank, 0x55, command);
+	target->type->write_memory(target, flash_address(bank, 0, pri_ext->_unlock2), bank->bus_width, 1, command);
+
+	cfi_command(bank, 0x90, command);
+	target->type->write_memory(target, flash_address(bank, 0, pri_ext->_unlock1), bank->bus_width, 1, command);
+
+	for (i = 0; i < bank->num_sectors; i++)
+	{
+		u8 block_status = cfi_get_u8(bank, i, 0x2);
+
+		if (block_status & 1)
+			bank->sectors[i].is_protected = 1;
+		else
+			bank->sectors[i].is_protected = 0;
+	}
+
+	cfi_command(bank, 0xf0, command);
+	target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);
+
+	return ERROR_OK;
+}
+
+int cfi_protect_check(struct flash_bank_s *bank)
+{
+	cfi_flash_bank_t *cfi_info = bank->driver_priv;
+
+	if (cfi_info->qry[0] != 'Q')
+		return ERROR_FLASH_BANK_NOT_PROBED;
+
+	switch(cfi_info->pri_id)
+	{
+		case 1:
+		case 3:
+			return cfi_intel_protect_check(bank);
+			break;
+		case 2:
+			return cfi_spansion_protect_check(bank);
+			break;
+		default:
+			ERROR("cfi primary command set %i unsupported", cfi_info->pri_id);
+			break;
+	}
+
+	return ERROR_OK;
+}
+
+int cfi_info(struct flash_bank_s *bank, char *buf, int buf_size)
+{
+	int printed;
+	cfi_flash_bank_t *cfi_info = bank->driver_priv;
+
+	if (cfi_info->qry[0] == (char)-1)
+	{
+		printed = snprintf(buf, buf_size, "\ncfi flash bank not probed yet\n");
+		return ERROR_OK;
+	}
+
+	printed = snprintf(buf, buf_size, "\ncfi information:\n");
+	buf += printed;
+	buf_size -= printed;
+
+	printed = snprintf(buf, buf_size, "\nmfr: 0x%4.4x, id:0x%4.4x\n",
+		cfi_info->manufacturer, cfi_info->device_id);
+	buf += printed;
+	buf_size -= printed;
+
+	printed = snprintf(buf, buf_size, "qry: '%c%c%c', pri_id: 0x%4.4x, pri_addr: 0x%4.4x, alt_id: 0x%4.4x, alt_addr: 0x%4.4x\n", cfi_info->qry[0], cfi_info->qry[1], cfi_info->qry[2], cfi_info->pri_id, cfi_info->pri_addr, cfi_info->alt_id, cfi_info->alt_addr);
+	buf += printed;
+	buf_size -= printed;
+
+	printed = snprintf(buf, buf_size, "Vcc min: %1.1x.%1.1x, Vcc max: %1.1x.%1.1x, Vpp min: %1.1x.%1.1x, Vpp max: %1.1x.%1.1x\n", (cfi_info->vcc_min & 0xf0) >> 4, cfi_info->vcc_min & 0x0f,
+	(cfi_info->vcc_max & 0xf0) >> 4, cfi_info->vcc_max & 0x0f,
+	(cfi_info->vpp_min & 0xf0) >> 4, cfi_info->vpp_min & 0x0f,
+	(cfi_info->vpp_max & 0xf0) >> 4, cfi_info->vpp_max & 0x0f);
+	buf += printed;
+	buf_size -= printed;
+
+	printed = snprintf(buf, buf_size, "typ. word write timeout: %u, typ. buf write timeout: %u, typ. block erase timeout: %u, typ. chip erase timeout: %u\n", 1 << cfi_info->word_write_timeout_typ, 1 << cfi_info->buf_write_timeout_typ,
+		  1 << cfi_info->block_erase_timeout_typ, 1 << cfi_info->chip_erase_timeout_typ);
+	buf += printed;
+	buf_size -= printed;
+
+	printed = snprintf(buf, buf_size, "max. word write timeout: %u, max. buf write timeout: %u, max. block erase timeout: %u, max. chip erase timeout: %u\n", (1 << cfi_info->word_write_timeout_max) * (1 << cfi_info->word_write_timeout_typ),
+		  (1 << cfi_info->buf_write_timeout_max) * (1 << cfi_info->buf_write_timeout_typ),
+		  (1 << cfi_info->block_erase_timeout_max) * (1 << cfi_info->block_erase_timeout_typ),
+		  (1 << cfi_info->chip_erase_timeout_max) * (1 << cfi_info->chip_erase_timeout_typ));
+	buf += printed;
+	buf_size -= printed;
+
+	printed = snprintf(buf, buf_size, "size: 0x%x, interface desc: %i, max buffer write size: %x\n", 1 << cfi_info->dev_size, cfi_info->interface_desc, cfi_info->max_buf_write_size);
+	buf += printed;
+	buf_size -= printed;
+
+	switch(cfi_info->pri_id)
+	{
+		case 1:
+		case 3:
+			cfi_intel_info(bank, buf, buf_size);
+			break;
+		case 2:
+			cfi_spansion_info(bank, buf, buf_size);
+			break;
+		default:
+			ERROR("cfi primary command set %i unsupported", cfi_info->pri_id);
+			break;
+	}
+
+	return ERROR_OK;
+}