-/***************************************************************************
- * 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(®_params[0], "r0", 32, PARAM_OUT);
- init_reg_param(®_params[1], "r1", 32, PARAM_OUT);
- init_reg_param(®_params[2], "r2", 32, PARAM_OUT);
- init_reg_param(®_params[3], "r3", 32, PARAM_OUT);
- init_reg_param(®_params[4], "r4", 32, PARAM_IN);
- init_reg_param(®_params[5], "r5", 32, PARAM_OUT);
- init_reg_param(®_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(®_params[0]);
- destroy_reg_param(®_params[1]);
- destroy_reg_param(®_params[2]);
- destroy_reg_param(®_params[3]);
- destroy_reg_param(®_params[4]);
- destroy_reg_param(®_params[5]);
- destroy_reg_param(®_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 */
- if (target_alloc_working_area(target, 24 * 4,
- &cfi_info->write_algorithm) != 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 */
- 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(®_params[0], "r0", 32, PARAM_OUT);
- init_reg_param(®_params[1], "r1", 32, PARAM_OUT);
- init_reg_param(®_params[2], "r2", 32, PARAM_OUT);
- init_reg_param(®_params[3], "r3", 32, PARAM_OUT);
- init_reg_param(®_params[4], "r4", 32, PARAM_OUT);
- init_reg_param(®_params[5], "r5", 32, PARAM_IN);
- init_reg_param(®_params[6], "r8", 32, PARAM_OUT);
- init_reg_param(®_params[7], "r9", 32, PARAM_OUT);
- init_reg_param(®_params[8], "r10", 32, PARAM_OUT);
- init_reg_param(®_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(®_params[0]);
- destroy_reg_param(®_params[1]);
- destroy_reg_param(®_params[2]);
- destroy_reg_param(®_params[3]);
- destroy_reg_param(®_params[4]);
- destroy_reg_param(®_params[5]);
- destroy_reg_param(®_params[6]);
- destroy_reg_param(®_params[7]);
- destroy_reg_param(®_params[8]);
- destroy_reg_param(®_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 (bank->target->state != TARGET_HALTED)
- {
- return ERROR_TARGET_NOT_HALTED;
- }
-
- 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 ((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
- {
- 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(®_params[0], "r0", 32, PARAM_OUT);
- buf_set_u32(reg_params[0].value, 0, 32, address);
-
- init_reg_param(®_params[1], "r1", 32, PARAM_OUT);
- buf_set_u32(reg_params[1].value, 0, 32, size);
-
- init_reg_param(®_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(®_params[0]);
- destroy_reg_param(®_params[1]);
- destroy_reg_param(®_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;
-}
+/***************************************************************************\r
+ * Copyright (C) 2005, 2007 by Dominic Rath *\r
+ * Dominic.Rath@gmx.de *\r
+ * *\r
+ * This program is free software; you can redistribute it and/or modify *\r
+ * it under the terms of the GNU General Public License as published by *\r
+ * the Free Software Foundation; either version 2 of the License, or *\r
+ * (at your option) any later version. *\r
+ * *\r
+ * This program is distributed in the hope that it will be useful, *\r
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of *\r
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *\r
+ * GNU General Public License for more details. *\r
+ * *\r
+ * You should have received a copy of the GNU General Public License *\r
+ * along with this program; if not, write to the *\r
+ * Free Software Foundation, Inc., *\r
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *\r
+ ***************************************************************************/\r
+#ifdef HAVE_CONFIG_H\r
+#include "config.h"\r
+#endif\r
+\r
+#include "replacements.h"\r
+\r
+#include "cfi.h"\r
+\r
+#include "flash.h"\r
+#include "target.h"\r
+#include "log.h"\r
+#include "armv4_5.h"\r
+#include "algorithm.h"\r
+#include "binarybuffer.h"\r
+#include "types.h"\r
+\r
+#include <stdlib.h>\r
+#include <string.h>\r
+#include <unistd.h>\r
+\r
+int cfi_register_commands(struct command_context_s *cmd_ctx);\r
+int cfi_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct flash_bank_s *bank);\r
+int cfi_erase(struct flash_bank_s *bank, int first, int last);\r
+int cfi_protect(struct flash_bank_s *bank, int set, int first, int last);\r
+int cfi_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count);\r
+int cfi_probe(struct flash_bank_s *bank);\r
+int cfi_auto_probe(struct flash_bank_s *bank);\r
+int cfi_erase_check(struct flash_bank_s *bank);\r
+int cfi_protect_check(struct flash_bank_s *bank);\r
+int cfi_info(struct flash_bank_s *bank, char *buf, int buf_size);\r
+\r
+int cfi_handle_part_id_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);\r
+\r
+#define CFI_MAX_BUS_WIDTH 4\r
+#define CFI_MAX_CHIP_WIDTH 4\r
+\r
+/* defines internal maximum size for code fragment in cfi_intel_write_block() */\r
+#define CFI_MAX_INTEL_CODESIZE 256\r
+\r
+flash_driver_t cfi_flash =\r
+{\r
+ .name = "cfi",\r
+ .register_commands = cfi_register_commands,\r
+ .flash_bank_command = cfi_flash_bank_command,\r
+ .erase = cfi_erase,\r
+ .protect = cfi_protect,\r
+ .write = cfi_write,\r
+ .probe = cfi_probe,\r
+ .auto_probe = cfi_auto_probe,\r
+ .erase_check = cfi_erase_check,\r
+ .protect_check = cfi_protect_check,\r
+ .info = cfi_info\r
+};\r
+\r
+cfi_unlock_addresses_t cfi_unlock_addresses[] =\r
+{\r
+ [CFI_UNLOCK_555_2AA] = { .unlock1 = 0x555, .unlock2 = 0x2aa },\r
+ [CFI_UNLOCK_5555_2AAA] = { .unlock1 = 0x5555, .unlock2 = 0x2aaa },\r
+};\r
+\r
+/* CFI fixups foward declarations */\r
+void cfi_fixup_non_cfi(flash_bank_t *flash, void *param);\r
+void cfi_fixup_0002_erase_regions(flash_bank_t *flash, void *param);\r
+void cfi_fixup_0002_unlock_addresses(flash_bank_t *flash, void *param);\r
+void cfi_fixup_atmel_reversed_erase_regions(flash_bank_t *flash, void *param);\r
+\r
+/* fixup after identifying JEDEC manufactuer and ID */\r
+cfi_fixup_t cfi_jedec_fixups[] = {\r
+ {CFI_MFR_SST, 0x00D4, cfi_fixup_non_cfi, NULL},\r
+ {CFI_MFR_SST, 0x00D5, cfi_fixup_non_cfi, NULL},\r
+ {CFI_MFR_SST, 0x00D6, cfi_fixup_non_cfi, NULL},\r
+ {CFI_MFR_SST, 0x00D7, cfi_fixup_non_cfi, NULL},\r
+ {CFI_MFR_SST, 0x2780, cfi_fixup_non_cfi, NULL},\r
+ {CFI_MFR_ST, 0x00D5, cfi_fixup_non_cfi, NULL},\r
+ {CFI_MFR_ST, 0x00D6, cfi_fixup_non_cfi, NULL},\r
+ {CFI_MFR_AMD, 0x2223, cfi_fixup_non_cfi, NULL},\r
+ {CFI_MFR_AMD, 0x22ab, cfi_fixup_non_cfi, NULL},\r
+ {0, 0, NULL, NULL}\r
+};\r
+\r
+/* fixup after reading cmdset 0002 primary query table */\r
+cfi_fixup_t cfi_0002_fixups[] = {\r
+ {CFI_MFR_SST, 0x00D4, cfi_fixup_0002_unlock_addresses, &cfi_unlock_addresses[CFI_UNLOCK_5555_2AAA]},\r
+ {CFI_MFR_SST, 0x00D5, cfi_fixup_0002_unlock_addresses, &cfi_unlock_addresses[CFI_UNLOCK_5555_2AAA]},\r
+ {CFI_MFR_SST, 0x00D6, cfi_fixup_0002_unlock_addresses, &cfi_unlock_addresses[CFI_UNLOCK_5555_2AAA]},\r
+ {CFI_MFR_SST, 0x00D7, cfi_fixup_0002_unlock_addresses, &cfi_unlock_addresses[CFI_UNLOCK_5555_2AAA]},\r
+ {CFI_MFR_SST, 0x2780, cfi_fixup_0002_unlock_addresses, &cfi_unlock_addresses[CFI_UNLOCK_5555_2AAA]},\r
+ {CFI_MFR_ATMEL, 0x00C8, cfi_fixup_atmel_reversed_erase_regions, NULL},\r
+ {CFI_MFR_ANY, CFI_ID_ANY, cfi_fixup_0002_erase_regions, NULL},\r
+ {0, 0, NULL, NULL}\r
+};\r
+\r
+/* fixup after reading cmdset 0001 primary query table */\r
+cfi_fixup_t cfi_0001_fixups[] = {\r
+ {0, 0, NULL, NULL}\r
+};\r
+\r
+void cfi_fixup(flash_bank_t *bank, cfi_fixup_t *fixups)\r
+{\r
+ cfi_flash_bank_t *cfi_info = bank->driver_priv;\r
+ cfi_fixup_t *f;\r
+\r
+ for (f = fixups; f->fixup; f++)\r
+ {\r
+ if (((f->mfr == CFI_MFR_ANY) || (f->mfr == cfi_info->manufacturer)) &&\r
+ ((f->id == CFI_ID_ANY) || (f->id == cfi_info->device_id)))\r
+ {\r
+ f->fixup(bank, f->param);\r
+ }\r
+ }\r
+}\r
+\r
+inline u32 flash_address(flash_bank_t *bank, int sector, u32 offset)\r
+{\r
+ /* while the sector list isn't built, only accesses to sector 0 work */\r
+ if (sector == 0)\r
+ return bank->base + offset * bank->bus_width;\r
+ else\r
+ {\r
+ if (!bank->sectors)\r
+ {\r
+ ERROR("BUG: sector list not yet built");\r
+ exit(-1);\r
+ }\r
+ return bank->base + bank->sectors[sector].offset + offset * bank->bus_width;\r
+ }\r
+\r
+}\r
+\r
+void cfi_command(flash_bank_t *bank, u8 cmd, u8 *cmd_buf)\r
+{\r
+ int i;\r
+\r
+ /* clear whole buffer, to ensure bits that exceed the bus_width\r
+ * are set to zero\r
+ */\r
+ for (i = 0; i < CFI_MAX_BUS_WIDTH; i++)\r
+ cmd_buf[i] = 0;\r
+\r
+ if (bank->target->endianness == TARGET_LITTLE_ENDIAN)\r
+ {\r
+ for (i = bank->bus_width; i > 0; i--)\r
+ {\r
+ *cmd_buf++ = (i & (bank->chip_width - 1)) ? 0x0 : cmd;\r
+ }\r
+ }\r
+ else\r
+ {\r
+ for (i = 1; i <= bank->bus_width; i++)\r
+ {\r
+ *cmd_buf++ = (i & (bank->chip_width - 1)) ? 0x0 : cmd;\r
+ }\r
+ }\r
+}\r
+\r
+/* read unsigned 8-bit value from the bank\r
+ * flash banks are expected to be made of similar chips\r
+ * the query result should be the same for all\r
+ */\r
+u8 cfi_query_u8(flash_bank_t *bank, int sector, u32 offset)\r
+{\r
+ target_t *target = bank->target;\r
+ u8 data[CFI_MAX_BUS_WIDTH];\r
+\r
+ target->type->read_memory(target, flash_address(bank, sector, offset), bank->bus_width, 1, data);\r
+\r
+ if (bank->target->endianness == TARGET_LITTLE_ENDIAN)\r
+ return data[0];\r
+ else\r
+ return data[bank->bus_width - 1];\r
+}\r
+\r
+/* read unsigned 8-bit value from the bank\r
+ * in case of a bank made of multiple chips,\r
+ * the individual values are ORed\r
+ */\r
+u8 cfi_get_u8(flash_bank_t *bank, int sector, u32 offset)\r
+{\r
+ target_t *target = bank->target;\r
+ u8 data[CFI_MAX_BUS_WIDTH];\r
+ int i;\r
+\r
+ target->type->read_memory(target, flash_address(bank, sector, offset), bank->bus_width, 1, data);\r
+\r
+ if (bank->target->endianness == TARGET_LITTLE_ENDIAN)\r
+ {\r
+ for (i = 0; i < bank->bus_width / bank->chip_width; i++)\r
+ data[0] |= data[i];\r
+\r
+ return data[0];\r
+ }\r
+ else\r
+ {\r
+ u8 value = 0;\r
+ for (i = 0; i < bank->bus_width / bank->chip_width; i++)\r
+ value |= data[bank->bus_width - 1 - i];\r
+\r
+ return value;\r
+ }\r
+}\r
+\r
+u16 cfi_query_u16(flash_bank_t *bank, int sector, u32 offset)\r
+{\r
+ target_t *target = bank->target;\r
+ u8 data[CFI_MAX_BUS_WIDTH * 2];\r
+\r
+ target->type->read_memory(target, flash_address(bank, sector, offset), bank->bus_width, 2, data);\r
+\r
+ if (bank->target->endianness == TARGET_LITTLE_ENDIAN)\r
+ return data[0] | data[bank->bus_width] << 8;\r
+ else\r
+ return data[bank->bus_width - 1] | data[(2 * bank->bus_width) - 1] << 8;\r
+}\r
+\r
+u32 cfi_query_u32(flash_bank_t *bank, int sector, u32 offset)\r
+{\r
+ target_t *target = bank->target;\r
+ u8 data[CFI_MAX_BUS_WIDTH * 4];\r
+\r
+ target->type->read_memory(target, flash_address(bank, sector, offset), bank->bus_width, 4, data);\r
+\r
+ if (bank->target->endianness == TARGET_LITTLE_ENDIAN)\r
+ return data[0] | data[bank->bus_width] << 8 | data[bank->bus_width * 2] << 16 | data[bank->bus_width * 3] << 24;\r
+ else\r
+ return data[bank->bus_width - 1] | data[(2* bank->bus_width) - 1] << 8 |\r
+ data[(3 * bank->bus_width) - 1] << 16 | data[(4 * bank->bus_width) - 1] << 24;\r
+}\r
+\r
+void cfi_intel_clear_status_register(flash_bank_t *bank)\r
+{\r
+ target_t *target = bank->target;\r
+ u8 command[8];\r
+\r
+ if (target->state != TARGET_HALTED)\r
+ {\r
+ ERROR("BUG: attempted to clear status register while target wasn't halted");\r
+ exit(-1);\r
+ }\r
+\r
+ cfi_command(bank, 0x50, command);\r
+ target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);\r
+}\r
+\r
+u8 cfi_intel_wait_status_busy(flash_bank_t *bank, int timeout)\r
+{\r
+ u8 status;\r
+\r
+ while ((!((status = cfi_get_u8(bank, 0, 0x0)) & 0x80)) && (timeout-- > 0))\r
+ {\r
+ DEBUG("status: 0x%x", status);\r
+ usleep(1000);\r
+ }\r
+\r
+ /* mask out bit 0 (reserved) */\r
+ status = status & 0xfe;\r
+\r
+ DEBUG("status: 0x%x", status);\r
+\r
+ if ((status & 0x80) != 0x80)\r
+ {\r
+ ERROR("timeout while waiting for WSM to become ready");\r
+ }\r
+ else if (status != 0x80)\r
+ {\r
+ ERROR("status register: 0x%x", status);\r
+ if (status & 0x2)\r
+ ERROR("Block Lock-Bit Detected, Operation Abort");\r
+ if (status & 0x4)\r
+ ERROR("Program suspended");\r
+ if (status & 0x8)\r
+ ERROR("Low Programming Voltage Detected, Operation Aborted");\r
+ if (status & 0x10)\r
+ ERROR("Program Error / Error in Setting Lock-Bit");\r
+ if (status & 0x20)\r
+ ERROR("Error in Block Erasure or Clear Lock-Bits");\r
+ if (status & 0x40)\r
+ ERROR("Block Erase Suspended");\r
+\r
+ cfi_intel_clear_status_register(bank);\r
+ }\r
+\r
+ return status;\r
+}\r
+\r
+int cfi_spansion_wait_status_busy(flash_bank_t *bank, int timeout)\r
+{\r
+ u8 status, oldstatus;\r
+\r
+ oldstatus = cfi_get_u8(bank, 0, 0x0);\r
+\r
+ do {\r
+ status = cfi_get_u8(bank, 0, 0x0);\r
+ if ((status ^ oldstatus) & 0x40) {\r
+ if (status & 0x20) {\r
+ oldstatus = cfi_get_u8(bank, 0, 0x0);\r
+ status = cfi_get_u8(bank, 0, 0x0);\r
+ if ((status ^ oldstatus) & 0x40) {\r
+ ERROR("dq5 timeout, status: 0x%x", status);\r
+ return(ERROR_FLASH_OPERATION_FAILED);\r
+ } else {\r
+ DEBUG("status: 0x%x", status);\r
+ return(ERROR_OK);\r
+ }\r
+ }\r
+ } else {\r
+ DEBUG("status: 0x%x", status);\r
+ return(ERROR_OK);\r
+ }\r
+\r
+ oldstatus = status;\r
+ usleep(1000);\r
+ } while (timeout-- > 0);\r
+\r
+ ERROR("timeout, status: 0x%x", status);\r
+\r
+ return(ERROR_FLASH_BUSY);\r
+}\r
+\r
+int cfi_read_intel_pri_ext(flash_bank_t *bank)\r
+{\r
+ cfi_flash_bank_t *cfi_info = bank->driver_priv;\r
+ cfi_intel_pri_ext_t *pri_ext = malloc(sizeof(cfi_intel_pri_ext_t));\r
+ target_t *target = bank->target;\r
+ u8 command[8];\r
+\r
+ cfi_info->pri_ext = pri_ext;\r
+\r
+ pri_ext->pri[0] = cfi_query_u8(bank, 0, cfi_info->pri_addr + 0);\r
+ pri_ext->pri[1] = cfi_query_u8(bank, 0, cfi_info->pri_addr + 1);\r
+ pri_ext->pri[2] = cfi_query_u8(bank, 0, cfi_info->pri_addr + 2);\r
+\r
+ if ((pri_ext->pri[0] != 'P') || (pri_ext->pri[1] != 'R') || (pri_ext->pri[2] != 'I'))\r
+ {\r
+ cfi_command(bank, 0xf0, command);\r
+ target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);\r
+ cfi_command(bank, 0xff, command);\r
+ target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);\r
+ return ERROR_FLASH_BANK_INVALID;\r
+ }\r
+\r
+ pri_ext->major_version = cfi_query_u8(bank, 0, cfi_info->pri_addr + 3);\r
+ pri_ext->minor_version = cfi_query_u8(bank, 0, cfi_info->pri_addr + 4);\r
+\r
+ 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);\r
+\r
+ pri_ext->feature_support = cfi_query_u32(bank, 0, cfi_info->pri_addr + 5);\r
+ pri_ext->suspend_cmd_support = cfi_query_u8(bank, 0, cfi_info->pri_addr + 9);\r
+ pri_ext->blk_status_reg_mask = cfi_query_u16(bank, 0, cfi_info->pri_addr + 0xa);\r
+\r
+ 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);\r
+\r
+ pri_ext->vcc_optimal = cfi_query_u8(bank, 0, cfi_info->pri_addr + 0xc);\r
+ pri_ext->vpp_optimal = cfi_query_u8(bank, 0, cfi_info->pri_addr + 0xd);\r
+\r
+ DEBUG("Vcc opt: %1.1x.%1.1x, Vpp opt: %1.1x.%1.1x",\r
+ (pri_ext->vcc_optimal & 0xf0) >> 4, pri_ext->vcc_optimal & 0x0f,\r
+ (pri_ext->vpp_optimal & 0xf0) >> 4, pri_ext->vpp_optimal & 0x0f);\r
+\r
+ pri_ext->num_protection_fields = cfi_query_u8(bank, 0, cfi_info->pri_addr + 0xe);\r
+ if (pri_ext->num_protection_fields != 1)\r
+ {\r
+ WARNING("expected one protection register field, but found %i", pri_ext->num_protection_fields);\r
+ }\r
+\r
+ pri_ext->prot_reg_addr = cfi_query_u16(bank, 0, cfi_info->pri_addr + 0xf);\r
+ pri_ext->fact_prot_reg_size = cfi_query_u8(bank, 0, cfi_info->pri_addr + 0x11);\r
+ pri_ext->user_prot_reg_size = cfi_query_u8(bank, 0, cfi_info->pri_addr + 0x12);\r
+\r
+ 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);\r
+\r
+ return ERROR_OK;\r
+}\r
+\r
+int cfi_read_spansion_pri_ext(flash_bank_t *bank)\r
+{\r
+ cfi_flash_bank_t *cfi_info = bank->driver_priv;\r
+ cfi_spansion_pri_ext_t *pri_ext = malloc(sizeof(cfi_spansion_pri_ext_t));\r
+ target_t *target = bank->target;\r
+ u8 command[8];\r
+\r
+ cfi_info->pri_ext = pri_ext;\r
+\r
+ pri_ext->pri[0] = cfi_query_u8(bank, 0, cfi_info->pri_addr + 0);\r
+ pri_ext->pri[1] = cfi_query_u8(bank, 0, cfi_info->pri_addr + 1);\r
+ pri_ext->pri[2] = cfi_query_u8(bank, 0, cfi_info->pri_addr + 2);\r
+\r
+ if ((pri_ext->pri[0] != 'P') || (pri_ext->pri[1] != 'R') || (pri_ext->pri[2] != 'I'))\r
+ {\r
+ cfi_command(bank, 0xf0, command);\r
+ target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);\r
+ return ERROR_FLASH_BANK_INVALID;\r
+ }\r
+\r
+ pri_ext->major_version = cfi_query_u8(bank, 0, cfi_info->pri_addr + 3);\r
+ pri_ext->minor_version = cfi_query_u8(bank, 0, cfi_info->pri_addr + 4);\r
+\r
+ 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);\r
+\r
+ pri_ext->SiliconRevision = cfi_query_u8(bank, 0, cfi_info->pri_addr + 5);\r
+ pri_ext->EraseSuspend = cfi_query_u8(bank, 0, cfi_info->pri_addr + 6);\r
+ pri_ext->BlkProt = cfi_query_u8(bank, 0, cfi_info->pri_addr + 7);\r
+ pri_ext->TmpBlkUnprotect = cfi_query_u8(bank, 0, cfi_info->pri_addr + 8);\r
+ pri_ext->BlkProtUnprot = cfi_query_u8(bank, 0, cfi_info->pri_addr + 9);\r
+ pri_ext->SimultaneousOps = cfi_query_u8(bank, 0, cfi_info->pri_addr + 10);\r
+ pri_ext->BurstMode = cfi_query_u8(bank, 0, cfi_info->pri_addr + 11);\r
+ pri_ext->PageMode = cfi_query_u8(bank, 0, cfi_info->pri_addr + 12);\r
+ pri_ext->VppMin = cfi_query_u8(bank, 0, cfi_info->pri_addr + 13);\r
+ pri_ext->VppMax = cfi_query_u8(bank, 0, cfi_info->pri_addr + 14);\r
+ pri_ext->TopBottom = cfi_query_u8(bank, 0, cfi_info->pri_addr + 15);\r
+\r
+ DEBUG("Silicon Revision: 0x%x, Erase Suspend: 0x%x, Block protect: 0x%x", pri_ext->SiliconRevision,\r
+ pri_ext->EraseSuspend, pri_ext->BlkProt);\r
+\r
+ DEBUG("Temporary Unprotect: 0x%x, Block Protect Scheme: 0x%x, Simultaneous Ops: 0x%x", pri_ext->TmpBlkUnprotect,\r
+ pri_ext->BlkProtUnprot, pri_ext->SimultaneousOps);\r
+\r
+ DEBUG("Burst Mode: 0x%x, Page Mode: 0x%x, ", pri_ext->BurstMode, pri_ext->PageMode);\r
+\r
+\r
+ DEBUG("Vpp min: %2.2d.%1.1d, Vpp max: %2.2d.%1.1x",\r
+ (pri_ext->VppMin & 0xf0) >> 4, pri_ext->VppMin & 0x0f,\r
+ (pri_ext->VppMax & 0xf0) >> 4, pri_ext->VppMax & 0x0f);\r
+\r
+ DEBUG("WP# protection 0x%x", pri_ext->TopBottom);\r
+\r
+ /* default values for implementation specific workarounds */\r
+ pri_ext->_unlock1 = cfi_unlock_addresses[CFI_UNLOCK_555_2AA].unlock1;\r
+ pri_ext->_unlock2 = cfi_unlock_addresses[CFI_UNLOCK_555_2AA].unlock2;\r
+ pri_ext->_reversed_geometry = 0;\r
+\r
+ return ERROR_OK;\r
+}\r
+\r
+int cfi_read_atmel_pri_ext(flash_bank_t *bank)\r
+{\r
+ cfi_atmel_pri_ext_t atmel_pri_ext;\r
+ cfi_flash_bank_t *cfi_info = bank->driver_priv;\r
+ cfi_spansion_pri_ext_t *pri_ext = malloc(sizeof(cfi_spansion_pri_ext_t));\r
+ target_t *target = bank->target;\r
+ u8 command[8];\r
+\r
+ /* ATMEL devices use the same CFI primary command set (0x2) as AMD/Spansion,\r
+ * but a different primary extended query table.\r
+ * We read the atmel table, and prepare a valid AMD/Spansion query table.\r
+ */\r
+\r
+ memset(pri_ext, 0, sizeof(cfi_spansion_pri_ext_t));\r
+\r
+ cfi_info->pri_ext = pri_ext;\r
+\r
+ atmel_pri_ext.pri[0] = cfi_query_u8(bank, 0, cfi_info->pri_addr + 0);\r
+ atmel_pri_ext.pri[1] = cfi_query_u8(bank, 0, cfi_info->pri_addr + 1);\r
+ atmel_pri_ext.pri[2] = cfi_query_u8(bank, 0, cfi_info->pri_addr + 2);\r
+\r
+ if ((atmel_pri_ext.pri[0] != 'P') || (atmel_pri_ext.pri[1] != 'R') || (atmel_pri_ext.pri[2] != 'I'))\r
+ {\r
+ cfi_command(bank, 0xf0, command);\r
+ target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);\r
+ return ERROR_FLASH_BANK_INVALID;\r
+ }\r
+\r
+ pri_ext->pri[0] = atmel_pri_ext.pri[0];\r
+ pri_ext->pri[1] = atmel_pri_ext.pri[1];\r
+ pri_ext->pri[2] = atmel_pri_ext.pri[2];\r
+\r
+ atmel_pri_ext.major_version = cfi_query_u8(bank, 0, cfi_info->pri_addr + 3);\r
+ atmel_pri_ext.minor_version = cfi_query_u8(bank, 0, cfi_info->pri_addr + 4);\r
+\r
+ 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);\r
+\r
+ pri_ext->major_version = atmel_pri_ext.major_version;\r
+ pri_ext->minor_version = atmel_pri_ext.minor_version;\r
+\r
+ atmel_pri_ext.features = cfi_query_u8(bank, 0, cfi_info->pri_addr + 5);\r
+ atmel_pri_ext.bottom_boot = cfi_query_u8(bank, 0, cfi_info->pri_addr + 6);\r
+ atmel_pri_ext.burst_mode = cfi_query_u8(bank, 0, cfi_info->pri_addr + 7);\r
+ atmel_pri_ext.page_mode = cfi_query_u8(bank, 0, cfi_info->pri_addr + 8);\r
+\r
+ DEBUG("features: 0x%2.2x, bottom_boot: 0x%2.2x, burst_mode: 0x%2.2x, page_mode: 0x%2.2x",\r
+ atmel_pri_ext.features, atmel_pri_ext.bottom_boot, atmel_pri_ext.burst_mode, atmel_pri_ext.page_mode);\r
+\r
+ if (atmel_pri_ext.features & 0x02)\r
+ pri_ext->EraseSuspend = 2;\r
+\r
+ if (atmel_pri_ext.bottom_boot)\r
+ pri_ext->TopBottom = 2;\r
+ else\r
+ pri_ext->TopBottom = 3;\r
+\r
+ pri_ext->_unlock1 = cfi_unlock_addresses[CFI_UNLOCK_555_2AA].unlock1;\r
+ pri_ext->_unlock2 = cfi_unlock_addresses[CFI_UNLOCK_555_2AA].unlock2;\r
+\r
+ return ERROR_OK;\r
+}\r
+\r
+int cfi_read_0002_pri_ext(flash_bank_t *bank)\r
+{\r
+ cfi_flash_bank_t *cfi_info = bank->driver_priv;\r
+\r
+ if (cfi_info->manufacturer == CFI_MFR_ATMEL)\r
+ {\r
+ return cfi_read_atmel_pri_ext(bank);\r
+ }\r
+ else\r
+ {\r
+ return cfi_read_spansion_pri_ext(bank);\r
+ }\r
+}\r
+\r
+int cfi_spansion_info(struct flash_bank_s *bank, char *buf, int buf_size)\r
+{\r
+ int printed;\r
+ cfi_flash_bank_t *cfi_info = bank->driver_priv;\r
+ cfi_spansion_pri_ext_t *pri_ext = cfi_info->pri_ext;\r
+\r
+ printed = snprintf(buf, buf_size, "\nSpansion primary algorithm extend information:\n");\r
+ buf += printed;\r
+ buf_size -= printed;\r
+\r
+ printed = snprintf(buf, buf_size, "pri: '%c%c%c', version: %c.%c\n", pri_ext->pri[0],\r
+ pri_ext->pri[1], pri_ext->pri[2],\r
+ pri_ext->major_version, pri_ext->minor_version);\r
+ buf += printed;\r
+ buf_size -= printed;\r
+\r
+ printed = snprintf(buf, buf_size, "Silicon Rev.: 0x%x, Address Sensitive unlock: 0x%x\n",\r
+ (pri_ext->SiliconRevision) >> 2,\r
+ (pri_ext->SiliconRevision) & 0x03);\r
+ buf += printed;\r
+ buf_size -= printed;\r
+\r
+ printed = snprintf(buf, buf_size, "Erase Suspend: 0x%x, Sector Protect: 0x%x\n",\r
+ pri_ext->EraseSuspend,\r
+ pri_ext->BlkProt);\r
+ buf += printed;\r
+ buf_size -= printed;\r
+\r
+ printed = snprintf(buf, buf_size, "VppMin: %2.2d.%1.1x, VppMax: %2.2d.%1.1x\n",\r
+ (pri_ext->VppMin & 0xf0) >> 4, pri_ext->VppMin & 0x0f,\r
+ (pri_ext->VppMax & 0xf0) >> 4, pri_ext->VppMax & 0x0f);\r
+\r
+ return ERROR_OK;\r
+}\r
+\r
+int cfi_intel_info(struct flash_bank_s *bank, char *buf, int buf_size)\r
+{\r
+ int printed;\r
+ cfi_flash_bank_t *cfi_info = bank->driver_priv;\r
+ cfi_intel_pri_ext_t *pri_ext = cfi_info->pri_ext;\r
+\r
+ printed = snprintf(buf, buf_size, "\nintel primary algorithm extend information:\n");\r
+ buf += printed;\r
+ buf_size -= printed;\r
+\r
+ 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);\r
+ buf += printed;\r
+ buf_size -= printed;\r
+\r
+ 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);\r
+ buf += printed;\r
+ buf_size -= printed;\r
+\r
+ printed = snprintf(buf, buf_size, "Vcc opt: %1.1x.%1.1x, Vpp opt: %1.1x.%1.1x\n",\r
+ (pri_ext->vcc_optimal & 0xf0) >> 4, pri_ext->vcc_optimal & 0x0f,\r
+ (pri_ext->vpp_optimal & 0xf0) >> 4, pri_ext->vpp_optimal & 0x0f);\r
+ buf += printed;\r
+ buf_size -= printed;\r
+\r
+ 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);\r
+\r
+ return ERROR_OK;\r
+}\r
+\r
+int cfi_register_commands(struct command_context_s *cmd_ctx)\r
+{\r
+ /*command_t *cfi_cmd = */\r
+ register_command(cmd_ctx, NULL, "cfi", NULL, COMMAND_ANY, "flash bank cfi <base> <size> <chip_width> <bus_width> <targetNum> [jedec_probe/x16_as_x8]");\r
+ /*\r
+ register_command(cmd_ctx, cfi_cmd, "part_id", cfi_handle_part_id_command, COMMAND_EXEC,\r
+ "print part id of cfi flash bank <num>");\r
+ */\r
+ return ERROR_OK;\r
+}\r
+\r
+/* flash_bank cfi <base> <size> <chip_width> <bus_width> <target#> [options]\r
+ */\r
+int cfi_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct flash_bank_s *bank)\r
+{\r
+ cfi_flash_bank_t *cfi_info;\r
+ int i;\r
+\r
+ if (argc < 6)\r
+ {\r
+ WARNING("incomplete flash_bank cfi configuration");\r
+ return ERROR_FLASH_BANK_INVALID;\r
+ }\r
+\r
+ if ((strtoul(args[4], NULL, 0) > CFI_MAX_CHIP_WIDTH)\r
+ || (strtoul(args[3], NULL, 0) > CFI_MAX_BUS_WIDTH))\r
+ {\r
+ ERROR("chip and bus width have to specified in bytes");\r
+ return ERROR_FLASH_BANK_INVALID;\r
+ }\r
+\r
+ cfi_info = malloc(sizeof(cfi_flash_bank_t));\r
+ cfi_info->probed = 0;\r
+ bank->driver_priv = cfi_info;\r
+\r
+ cfi_info->write_algorithm = NULL;\r
+ cfi_info->erase_check_algorithm = NULL;\r
+\r
+ cfi_info->x16_as_x8 = 0;\r
+ cfi_info->jedec_probe = 0;\r
+ cfi_info->not_cfi = 0;\r
+\r
+ for (i = 6; i < argc; i++)\r
+ {\r
+ if (strcmp(args[i], "x16_as_x8") == 0)\r
+ {\r
+ cfi_info->x16_as_x8 = 1;\r
+ }\r
+ else if (strcmp(args[i], "jedec_probe") == 0)\r
+ {\r
+ cfi_info->jedec_probe = 1;\r
+ }\r
+ }\r
+\r
+ cfi_info->write_algorithm = NULL;\r
+\r
+ /* bank wasn't probed yet */\r
+ cfi_info->qry[0] = -1;\r
+\r
+ return ERROR_OK;\r
+}\r
+\r
+int cfi_intel_erase(struct flash_bank_s *bank, int first, int last)\r
+{\r
+ cfi_flash_bank_t *cfi_info = bank->driver_priv;\r
+ target_t *target = bank->target;\r
+ u8 command[8];\r
+ int i;\r
+\r
+ cfi_intel_clear_status_register(bank);\r
+\r
+ for (i = first; i <= last; i++)\r
+ {\r
+ cfi_command(bank, 0x20, command);\r
+ target->type->write_memory(target, flash_address(bank, i, 0x0), bank->bus_width, 1, command);\r
+\r
+ cfi_command(bank, 0xd0, command);\r
+ target->type->write_memory(target, flash_address(bank, i, 0x0), bank->bus_width, 1, command);\r
+\r
+ if (cfi_intel_wait_status_busy(bank, 1000 * (1 << cfi_info->block_erase_timeout_typ)) == 0x80)\r
+ bank->sectors[i].is_erased = 1;\r
+ else\r
+ {\r
+ cfi_command(bank, 0xff, command);\r
+ target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);\r
+\r
+ ERROR("couldn't erase block %i of flash bank at base 0x%x", i, bank->base);\r
+ return ERROR_FLASH_OPERATION_FAILED;\r
+ }\r
+ }\r
+\r
+ cfi_command(bank, 0xff, command);\r
+ target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);\r
+\r
+ return ERROR_OK;\r
+}\r
+\r
+int cfi_spansion_erase(struct flash_bank_s *bank, int first, int last)\r
+{\r
+ cfi_flash_bank_t *cfi_info = bank->driver_priv;\r
+ cfi_spansion_pri_ext_t *pri_ext = cfi_info->pri_ext;\r
+ target_t *target = bank->target;\r
+ u8 command[8];\r
+ int i;\r
+\r
+ for (i = first; i <= last; i++)\r
+ {\r
+ cfi_command(bank, 0xaa, command);\r
+ target->type->write_memory(target, flash_address(bank, 0, pri_ext->_unlock1), bank->bus_width, 1, command);\r
+\r
+ cfi_command(bank, 0x55, command);\r
+ target->type->write_memory(target, flash_address(bank, 0, pri_ext->_unlock2), bank->bus_width, 1, command);\r
+\r
+ cfi_command(bank, 0x80, command);\r
+ target->type->write_memory(target, flash_address(bank, 0, pri_ext->_unlock1), bank->bus_width, 1, command);\r
+\r
+ cfi_command(bank, 0xaa, command);\r
+ target->type->write_memory(target, flash_address(bank, 0, pri_ext->_unlock1), bank->bus_width, 1, command);\r
+\r
+ cfi_command(bank, 0x55, command);\r
+ target->type->write_memory(target, flash_address(bank, 0, pri_ext->_unlock2), bank->bus_width, 1, command);\r
+\r
+ cfi_command(bank, 0x30, command);\r
+ target->type->write_memory(target, flash_address(bank, i, 0x0), bank->bus_width, 1, command);\r
+\r
+ if (cfi_spansion_wait_status_busy(bank, 1000 * (1 << cfi_info->block_erase_timeout_typ)) == ERROR_OK)\r
+ bank->sectors[i].is_erased = 1;\r
+ else\r
+ {\r
+ cfi_command(bank, 0xf0, command);\r
+ target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);\r
+\r
+ ERROR("couldn't erase block %i of flash bank at base 0x%x", i, bank->base);\r
+ return ERROR_FLASH_OPERATION_FAILED;\r
+ }\r
+ }\r
+\r
+ cfi_command(bank, 0xf0, command);\r
+ target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);\r
+\r
+ return ERROR_OK;\r
+}\r
+\r
+int cfi_erase(struct flash_bank_s *bank, int first, int last)\r
+{\r
+ cfi_flash_bank_t *cfi_info = bank->driver_priv;\r
+\r
+ if (bank->target->state != TARGET_HALTED)\r
+ {\r
+ return ERROR_TARGET_NOT_HALTED;\r
+ }\r
+\r
+ if ((first < 0) || (last < first) || (last >= bank->num_sectors))\r
+ {\r
+ return ERROR_FLASH_SECTOR_INVALID;\r
+ }\r
+\r
+ if (cfi_info->qry[0] != 'Q')\r
+ return ERROR_FLASH_BANK_NOT_PROBED;\r
+\r
+ switch(cfi_info->pri_id)\r
+ {\r
+ case 1:\r
+ case 3:\r
+ return cfi_intel_erase(bank, first, last);\r
+ break;\r
+ case 2:\r
+ return cfi_spansion_erase(bank, first, last);\r
+ break;\r
+ default:\r
+ ERROR("cfi primary command set %i unsupported", cfi_info->pri_id);\r
+ break;\r
+ }\r
+\r
+ return ERROR_OK;\r
+}\r
+\r
+int cfi_intel_protect(struct flash_bank_s *bank, int set, int first, int last)\r
+{\r
+ cfi_flash_bank_t *cfi_info = bank->driver_priv;\r
+ cfi_intel_pri_ext_t *pri_ext = cfi_info->pri_ext;\r
+ target_t *target = bank->target;\r
+ u8 command[8];\r
+ int retry = 0;\r
+ int i;\r
+\r
+ /* if the device supports neither legacy lock/unlock (bit 3) nor\r
+ * instant individual block locking (bit 5).\r
+ */\r
+ if (!(pri_ext->feature_support & 0x28))\r
+ return ERROR_FLASH_OPERATION_FAILED;\r
+\r
+ cfi_intel_clear_status_register(bank);\r
+\r
+ for (i = first; i <= last; i++)\r
+ {\r
+ cfi_command(bank, 0x60, command);\r
+ DEBUG("address: 0x%4.4x, command: 0x%4.4x", flash_address(bank, i, 0x0), target_buffer_get_u32(target, command));\r
+ target->type->write_memory(target, flash_address(bank, i, 0x0), bank->bus_width, 1, command);\r
+ if (set)\r
+ {\r
+ cfi_command(bank, 0x01, command);\r
+ DEBUG("address: 0x%4.4x, command: 0x%4.4x", flash_address(bank, i, 0x0), target_buffer_get_u32(target, command));\r
+ target->type->write_memory(target, flash_address(bank, i, 0x0), bank->bus_width, 1, command);\r
+ bank->sectors[i].is_protected = 1;\r
+ }\r
+ else\r
+ {\r
+ cfi_command(bank, 0xd0, command);\r
+ DEBUG("address: 0x%4.4x, command: 0x%4.4x", flash_address(bank, i, 0x0), target_buffer_get_u32(target, command));\r
+ target->type->write_memory(target, flash_address(bank, i, 0x0), bank->bus_width, 1, command);\r
+ bank->sectors[i].is_protected = 0;\r
+ }\r
+\r
+ /* instant individual block locking doesn't require reading of the status register */\r
+ if (!(pri_ext->feature_support & 0x20))\r
+ {\r
+ /* Clear lock bits operation may take up to 1.4s */\r
+ cfi_intel_wait_status_busy(bank, 1400);\r
+ }\r
+ else\r
+ {\r
+ u8 block_status;\r
+ /* read block lock bit, to verify status */\r
+ cfi_command(bank, 0x90, command);\r
+ target->type->write_memory(target, flash_address(bank, 0, 0x55), bank->bus_width, 1, command);\r
+ block_status = cfi_get_u8(bank, i, 0x2);\r
+\r
+ if ((block_status & 0x1) != set)\r
+ {\r
+ ERROR("couldn't change block lock status (set = %i, block_status = 0x%2.2x)", set, block_status);\r
+ cfi_command(bank, 0x70, command);\r
+ target->type->write_memory(target, flash_address(bank, 0, 0x55), bank->bus_width, 1, command);\r
+ cfi_intel_wait_status_busy(bank, 10);\r
+\r
+ if (retry > 10)\r
+ return ERROR_FLASH_OPERATION_FAILED;\r
+ else\r
+ {\r
+ i--;\r
+ retry++;\r
+ }\r
+ }\r
+ }\r
+ }\r
+\r
+ /* if the device doesn't support individual block lock bits set/clear,\r
+ * all blocks have been unlocked in parallel, so we set those that should be protected\r
+ */\r
+ if ((!set) && (!(pri_ext->feature_support & 0x20)))\r
+ {\r
+ for (i = 0; i < bank->num_sectors; i++)\r
+ {\r
+ if (bank->sectors[i].is_protected == 1)\r
+ {\r
+ cfi_intel_clear_status_register(bank);\r
+\r
+ cfi_command(bank, 0x60, command);\r
+ target->type->write_memory(target, flash_address(bank, i, 0x0), bank->bus_width, 1, command);\r
+\r
+ cfi_command(bank, 0x01, command);\r
+ target->type->write_memory(target, flash_address(bank, i, 0x0), bank->bus_width, 1, command);\r
+\r
+ cfi_intel_wait_status_busy(bank, 100);\r
+ }\r
+ }\r
+ }\r
+\r
+ cfi_command(bank, 0xff, command);\r
+ target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);\r
+\r
+ return ERROR_OK;\r
+}\r
+\r
+int cfi_protect(struct flash_bank_s *bank, int set, int first, int last)\r
+{\r
+ cfi_flash_bank_t *cfi_info = bank->driver_priv;\r
+\r
+ if (bank->target->state != TARGET_HALTED)\r
+ {\r
+ return ERROR_TARGET_NOT_HALTED;\r
+ }\r
+\r
+ if ((first < 0) || (last < first) || (last >= bank->num_sectors))\r
+ {\r
+ return ERROR_FLASH_SECTOR_INVALID;\r
+ }\r
+\r
+ if (cfi_info->qry[0] != 'Q')\r
+ return ERROR_FLASH_BANK_NOT_PROBED;\r
+\r
+ switch(cfi_info->pri_id)\r
+ {\r
+ case 1:\r
+ case 3:\r
+ cfi_intel_protect(bank, set, first, last);\r
+ break;\r
+ default:\r
+ ERROR("cfi primary command set %i unsupported", cfi_info->pri_id);\r
+ break;\r
+ }\r
+\r
+ return ERROR_OK;\r
+}\r
+\r
+/* FIXME Replace this by a simple memcpy() - still unsure about sideeffects */\r
+static void cfi_add_byte(struct flash_bank_s *bank, u8 *word, u8 byte)\r
+{\r
+ //target_t *target = bank->target;\r
+\r
+ int i;\r
+\r
+ // NOTE:\r
+ // The data to flash must not be changed in endian! We write a bytestrem in\r
+ // target byte order already. Only the control and status byte lane of the flash\r
+ // WSM is interpreted by the CPU in different ways, when read a u16 or u32\r
+ // word (data seems to be in the upper or lower byte lane for u16 accesses).\r
+\r
+ //if (target->endianness == TARGET_LITTLE_ENDIAN)\r
+ //{\r
+ /* shift bytes */\r
+ for (i = 0; i < bank->bus_width - 1; i++)\r
+ word[i] = word[i + 1];\r
+ word[bank->bus_width - 1] = byte;\r
+ //}\r
+ //else\r
+ //{\r
+ // /* shift bytes */\r
+ // for (i = bank->bus_width - 1; i > 0; i--)\r
+ // word[i] = word[i - 1];\r
+ // word[0] = byte;\r
+ //}\r
+}\r
+\r
+/* Convert code image to target endian */\r
+/* FIXME create general block conversion fcts in target.c?) */ static\r
+void cfi_fix_code_endian(target_t *target, u32 *dest, const u32 *src, u32 count)\r
+{\r
+ u32 i;\r
+ for (i=0; i< count; i++)\r
+ {\r
+ target_buffer_set_u32(target, (u8*)dest, *src);\r
+ dest++;\r
+ src++;\r
+ }\r
+}\r
+\r
+int cfi_intel_write_block(struct flash_bank_s *bank, u8 *buffer, u32 address, u32 count)\r
+{\r
+ cfi_flash_bank_t *cfi_info = bank->driver_priv;\r
+ target_t *target = bank->target;\r
+ reg_param_t reg_params[7];\r
+ armv4_5_algorithm_t armv4_5_info;\r
+ working_area_t *source;\r
+ u32 buffer_size = 32768;\r
+ u8 write_command_buf[CFI_MAX_BUS_WIDTH];\r
+ u8 busy_pattern_buf[CFI_MAX_BUS_WIDTH];\r
+ u8 error_pattern_buf[CFI_MAX_BUS_WIDTH];\r
+ u32 write_command_val, busy_pattern_val, error_pattern_val;\r
+\r
+ /* algorithm register usage:\r
+ * r0: source address (in RAM)\r
+ * r1: target address (in Flash)\r
+ * r2: count\r
+ * r3: flash write command\r
+ * r4: status byte (returned to host)\r
+ * r5: busy test pattern\r
+ * r6: error test pattern\r
+ */\r
+\r
+ static const u32 word_32_code[] = {\r
+ 0xe4904004, /* loop: ldr r4, [r0], #4 */\r
+ 0xe5813000, /* str r3, [r1] */\r
+ 0xe5814000, /* str r4, [r1] */\r
+ 0xe5914000, /* busy: ldr r4, [r1] */\r
+ 0xe0047005, /* and r7, r4, r5 */\r
+ 0xe1570005, /* cmp r7, r5 */\r
+ 0x1afffffb, /* bne busy */\r
+ 0xe1140006, /* tst r4, r6 */\r
+ 0x1a000003, /* bne done */\r
+ 0xe2522001, /* subs r2, r2, #1 */\r
+ 0x0a000001, /* beq done */\r
+ 0xe2811004, /* add r1, r1 #4 */\r
+ 0xeafffff2, /* b loop */\r
+ 0xeafffffe /* done: b -2 */\r
+ };\r
+\r
+ static const u32 word_16_code[] = {\r
+ 0xe0d040b2, /* loop: ldrh r4, [r0], #2 */\r
+ 0xe1c130b0, /* strh r3, [r1] */\r
+ 0xe1c140b0, /* strh r4, [r1] */\r
+ 0xe1d140b0, /* busy ldrh r4, [r1] */\r
+ 0xe0047005, /* and r7, r4, r5 */\r
+ 0xe1570005, /* cmp r7, r5 */\r
+ 0x1afffffb, /* bne busy */\r
+ 0xe1140006, /* tst r4, r6 */\r
+ 0x1a000003, /* bne done */\r
+ 0xe2522001, /* subs r2, r2, #1 */\r
+ 0x0a000001, /* beq done */\r
+ 0xe2811002, /* add r1, r1 #2 */\r
+ 0xeafffff2, /* b loop */\r
+ 0xeafffffe /* done: b -2 */\r
+ };\r
+\r
+ static const u32 word_8_code[] = {\r
+ 0xe4d04001, /* loop: ldrb r4, [r0], #1 */\r
+ 0xe5c13000, /* strb r3, [r1] */\r
+ 0xe5c14000, /* strb r4, [r1] */\r
+ 0xe5d14000, /* busy ldrb r4, [r1] */\r
+ 0xe0047005, /* and r7, r4, r5 */\r
+ 0xe1570005, /* cmp r7, r5 */\r
+ 0x1afffffb, /* bne busy */\r
+ 0xe1140006, /* tst r4, r6 */\r
+ 0x1a000003, /* bne done */\r
+ 0xe2522001, /* subs r2, r2, #1 */\r
+ 0x0a000001, /* beq done */\r
+ 0xe2811001, /* add r1, r1 #1 */\r
+ 0xeafffff2, /* b loop */\r
+ 0xeafffffe /* done: b -2 */\r
+ };\r
+ u32 target_code[CFI_MAX_INTEL_CODESIZE];\r
+ const u32 *target_code_src;\r
+ int target_code_size;\r
+ int retval = ERROR_OK;\r
+\r
+\r
+ cfi_intel_clear_status_register(bank);\r
+\r
+ armv4_5_info.common_magic = ARMV4_5_COMMON_MAGIC;\r
+ armv4_5_info.core_mode = ARMV4_5_MODE_SVC;\r
+ armv4_5_info.core_state = ARMV4_5_STATE_ARM;\r
+\r
+ /* If we are setting up the write_algorith, we need target_code_src */\r
+ /* if not we only need target_code_size. */\r
+ /* */\r
+ /* However, we don't want to create multiple code paths, so we */\r
+ /* do the unecessary evaluation of target_code_src, which the */\r
+ /* compiler will probably nicely optimize away if not needed */\r
+\r
+ /* prepare algorithm code for target endian */\r
+ switch (bank->bus_width)\r
+ {\r
+ case 1 :\r
+ target_code_src = word_8_code;\r
+ target_code_size = sizeof(word_8_code);\r
+ break;\r
+ case 2 :\r
+ target_code_src = word_16_code;\r
+ target_code_size = sizeof(word_16_code);\r
+ break;\r
+ case 4 :\r
+ target_code_src = word_32_code;\r
+ target_code_size = sizeof(word_32_code);\r
+ break;\r
+ default:\r
+ ERROR("Unsupported bank buswidth %d, can't do block memory writes", bank->bus_width);\r
+ return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;\r
+ }\r
+\r
+ /* flash write code */\r
+ if (!cfi_info->write_algorithm)\r
+ {\r
+ if ( target_code_size > sizeof(target_code) )\r
+ {\r
+ WARNING("Internal error - target code buffer to small. Increase CFI_MAX_INTEL_CODESIZE and recompile.");\r
+ return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;\r
+ }\r
+ cfi_fix_code_endian(target, target_code, target_code_src, target_code_size);\r
+\r
+ /* Get memory for block write handler */\r
+ retval = target_alloc_working_area(target, target_code_size, &cfi_info->write_algorithm);\r
+ if (retval != ERROR_OK)\r
+ {\r
+ WARNING("No working area available, can't do block memory writes");\r
+ return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;\r
+ };\r
+\r
+ /* write algorithm code to working area */\r
+ retval = target_write_buffer(target, cfi_info->write_algorithm->address, target_code_size, (u8*)target_code);\r
+ if (retval != ERROR_OK)\r
+ {\r
+ ERROR("Unable to write block write code to target");\r
+ goto cleanup;\r
+ }\r
+ }\r
+\r
+ /* Get a workspace buffer for the data to flash starting with 32k size.\r
+ Half size until buffer would be smaller 256 Bytem then fail back */\r
+ /* FIXME Why 256 bytes, why not 32 bytes (smallest flash write page */\r
+ while (target_alloc_working_area(target, buffer_size, &source) != ERROR_OK)\r
+ {\r
+ buffer_size /= 2;\r
+ if (buffer_size <= 256)\r
+ {\r
+ WARNING("no large enough working area available, can't do block memory writes");\r
+ retval = ERROR_TARGET_RESOURCE_NOT_AVAILABLE;\r
+ goto cleanup;\r
+ }\r
+ };\r
+\r
+ /* setup algo registers */\r
+ init_reg_param(®_params[0], "r0", 32, PARAM_OUT);\r
+ init_reg_param(®_params[1], "r1", 32, PARAM_OUT);\r
+ init_reg_param(®_params[2], "r2", 32, PARAM_OUT);\r
+ init_reg_param(®_params[3], "r3", 32, PARAM_OUT);\r
+ init_reg_param(®_params[4], "r4", 32, PARAM_IN);\r
+ init_reg_param(®_params[5], "r5", 32, PARAM_OUT);\r
+ init_reg_param(®_params[6], "r6", 32, PARAM_OUT);\r
+\r
+ /* prepare command and status register patterns */\r
+ cfi_command(bank, 0x40, write_command_buf);\r
+ cfi_command(bank, 0x80, busy_pattern_buf);\r
+ cfi_command(bank, 0x7e, error_pattern_buf);\r
+\r
+ switch (bank->bus_width)\r
+ {\r
+ case 1 :\r
+ write_command_val = write_command_buf[0];\r
+ busy_pattern_val = busy_pattern_buf[0];\r
+ error_pattern_val = error_pattern_buf[0];\r
+ break;\r
+ case 2 :\r
+ write_command_val = target_buffer_get_u16(target, write_command_buf);\r
+ busy_pattern_val = target_buffer_get_u16(target, busy_pattern_buf);\r
+ error_pattern_val = target_buffer_get_u16(target, error_pattern_buf);\r
+ break;\r
+ case 4 :\r
+ write_command_val = target_buffer_get_u32(target, write_command_buf);\r
+ busy_pattern_val = target_buffer_get_u32(target, busy_pattern_buf);\r
+ error_pattern_val = target_buffer_get_u32(target, error_pattern_buf);\r
+ break;\r
+ default :\r
+ ERROR("Unsupported bank buswidth %d, can't do block memory writes", bank->bus_width);\r
+ retval = ERROR_TARGET_RESOURCE_NOT_AVAILABLE;\r
+ goto cleanup;\r
+ }\r
+\r
+ INFO("Using target buffer at 0x%08x and of size 0x%04x", source->address, buffer_size );\r
+\r
+ /* Programming main loop */\r
+ while (count > 0)\r
+ {\r
+ u32 thisrun_count = (count > buffer_size) ? buffer_size : count;\r
+ u32 wsm_error;\r
+\r
+ target_write_buffer(target, source->address, thisrun_count, buffer);\r
+\r
+ buf_set_u32(reg_params[0].value, 0, 32, source->address);\r
+ buf_set_u32(reg_params[1].value, 0, 32, address);\r
+ buf_set_u32(reg_params[2].value, 0, 32, thisrun_count / bank->bus_width);\r
+\r
+ buf_set_u32(reg_params[3].value, 0, 32, write_command_val);\r
+ buf_set_u32(reg_params[5].value, 0, 32, busy_pattern_val);\r
+ buf_set_u32(reg_params[6].value, 0, 32, error_pattern_val);\r
+\r
+ INFO("Write 0x%04x bytes to flash at 0x%08x", thisrun_count, address );\r
+\r
+ /* Execute algorithm, assume breakpoint for last instruction */\r
+ retval = target->type->run_algorithm(target, 0, NULL, 7, reg_params,\r
+ cfi_info->write_algorithm->address,\r
+ cfi_info->write_algorithm->address + target_code_size - sizeof(u32),\r
+ 10000, /* 10s should be enough for max. 32k of data */\r
+ &armv4_5_info);\r
+\r
+ /* On failure try a fall back to direct word writes */\r
+ if (retval != ERROR_OK)\r
+ {\r
+ cfi_intel_clear_status_register(bank);\r
+ ERROR("Execution of flash algorythm failed. Can't fall back. Please report.");\r
+ retval = ERROR_FLASH_OPERATION_FAILED;\r
+ //retval = ERROR_TARGET_RESOURCE_NOT_AVAILABLE;\r
+ // FIXME To allow fall back or recovery, we must save the actual status\r
+ // somewhere, so that a higher level code can start recovery.\r
+ goto cleanup;\r
+ }\r
+\r
+ /* Check return value from algo code */\r
+ wsm_error = buf_get_u32(reg_params[4].value, 0, 32) & error_pattern_val;\r
+ if (wsm_error)\r
+ {\r
+ /* read status register (outputs debug inforation) */\r
+ cfi_intel_wait_status_busy(bank, 100);\r
+ cfi_intel_clear_status_register(bank);\r
+ retval = ERROR_FLASH_OPERATION_FAILED;\r
+ goto cleanup;\r
+ }\r
+\r
+ buffer += thisrun_count;\r
+ address += thisrun_count;\r
+ count -= thisrun_count;\r
+ }\r
+\r
+ /* free up resources */\r
+cleanup:\r
+ if (source)\r
+ target_free_working_area(target, source);\r
+\r
+ if (cfi_info->write_algorithm)\r
+ {\r
+ target_free_working_area(target, cfi_info->write_algorithm);\r
+ cfi_info->write_algorithm = NULL;\r
+ }\r
+\r
+ destroy_reg_param(®_params[0]);\r
+ destroy_reg_param(®_params[1]);\r
+ destroy_reg_param(®_params[2]);\r
+ destroy_reg_param(®_params[3]);\r
+ destroy_reg_param(®_params[4]);\r
+ destroy_reg_param(®_params[5]);\r
+ destroy_reg_param(®_params[6]);\r
+\r
+ return retval;\r
+}\r
+\r
+int cfi_spansion_write_block(struct flash_bank_s *bank, u8 *buffer, u32 address, u32 count)\r
+{\r
+ cfi_flash_bank_t *cfi_info = bank->driver_priv;\r
+ cfi_spansion_pri_ext_t *pri_ext = cfi_info->pri_ext;\r
+ target_t *target = bank->target;\r
+ reg_param_t reg_params[10];\r
+ armv4_5_algorithm_t armv4_5_info;\r
+ working_area_t *source;\r
+ u32 buffer_size = 32768;\r
+ u8 write_command[CFI_MAX_BUS_WIDTH];\r
+ u32 status;\r
+ int i;\r
+ int retval;\r
+ int exit_code = ERROR_OK;\r
+\r
+ /* input parameters - */\r
+ /* R0 = source address */\r
+ /* R1 = destination address */\r
+ /* R2 = number of writes */\r
+ /* R3 = flash write command */\r
+ /* R4 = constant to mask DQ7 bits (also used for Dq5 with shift) */\r
+ /* output parameters - */\r
+ /* R5 = 0x80 ok 0x00 bad */\r
+ /* temp registers - */\r
+ /* R6 = value read from flash to test status */\r
+ /* R7 = holding register */\r
+ /* unlock registers - */\r
+ /* R8 = unlock1_addr */\r
+ /* R9 = unlock1_cmd */\r
+ /* R10 = unlock2_addr */\r
+ /* R11 = unlock2_cmd */\r
+\r
+ u32 word_32_code[] = {\r
+ /* 00008100 <sp_32_code>: */\r
+ 0xe4905004, /* ldr r5, [r0], #4 */\r
+ 0xe5889000, /* str r9, [r8] */\r
+ 0xe58ab000, /* str r11, [r10] */\r
+ 0xe5883000, /* str r3, [r8] */\r
+ 0xe5815000, /* str r5, [r1] */\r
+ 0xe1a00000, /* nop */\r
+ /* */\r
+ /* 00008110 <sp_32_busy>: */\r
+ 0xe5916000, /* ldr r6, [r1] */\r
+ 0xe0257006, /* eor r7, r5, r6 */\r
+ 0xe0147007, /* ands r7, r4, r7 */\r
+ 0x0a000007, /* beq 8140 <sp_32_cont> ; b if DQ7 == Data7 */\r
+ 0xe0166124, /* ands r6, r6, r4, lsr #2 */\r
+ 0x0afffff9, /* beq 8110 <sp_32_busy> ; b if DQ5 low */\r
+ 0xe5916000, /* ldr r6, [r1] */\r
+ 0xe0257006, /* eor r7, r5, r6 */\r
+ 0xe0147007, /* ands r7, r4, r7 */\r
+ 0x0a000001, /* beq 8140 <sp_32_cont> ; b if DQ7 == Data7 */\r
+ 0xe3a05000, /* mov r5, #0 ; 0x0 - return 0x00, error */\r
+ 0x1a000004, /* bne 8154 <sp_32_done> */\r
+ /* */\r
+ /* 00008140 <sp_32_cont>: */\r
+ 0xe2522001, /* subs r2, r2, #1 ; 0x1 */\r
+ 0x03a05080, /* moveq r5, #128 ; 0x80 */\r
+ 0x0a000001, /* beq 8154 <sp_32_done> */\r
+ 0xe2811004, /* add r1, r1, #4 ; 0x4 */\r
+ 0xeaffffe8, /* b 8100 <sp_32_code> */\r
+ /* */\r
+ /* 00008154 <sp_32_done>: */\r
+ 0xeafffffe /* b 8154 <sp_32_done> */\r
+ };\r
+\r
+ u32 word_16_code[] = {\r
+ /* 00008158 <sp_16_code>: */\r
+ 0xe0d050b2, /* ldrh r5, [r0], #2 */\r
+ 0xe1c890b0, /* strh r9, [r8] */\r
+ 0xe1cab0b0, /* strh r11, [r10] */\r
+ 0xe1c830b0, /* strh r3, [r8] */\r
+ 0xe1c150b0, /* strh r5, [r1] */\r
+ 0xe1a00000, /* nop (mov r0,r0) */\r
+ /* */\r
+ /* 00008168 <sp_16_busy>: */\r
+ 0xe1d160b0, /* ldrh r6, [r1] */\r
+ 0xe0257006, /* eor r7, r5, r6 */\r
+ 0xe0147007, /* ands r7, r4, r7 */\r
+ 0x0a000007, /* beq 8198 <sp_16_cont> */\r
+ 0xe0166124, /* ands r6, r6, r4, lsr #2 */\r
+ 0x0afffff9, /* beq 8168 <sp_16_busy> */\r
+ 0xe1d160b0, /* ldrh r6, [r1] */\r
+ 0xe0257006, /* eor r7, r5, r6 */\r
+ 0xe0147007, /* ands r7, r4, r7 */\r
+ 0x0a000001, /* beq 8198 <sp_16_cont> */\r
+ 0xe3a05000, /* mov r5, #0 ; 0x0 */\r
+ 0x1a000004, /* bne 81ac <sp_16_done> */\r
+ /* */\r
+ /* 00008198 <sp_16_cont>: */\r
+ 0xe2522001, /* subs r2, r2, #1 ; 0x1 */\r
+ 0x03a05080, /* moveq r5, #128 ; 0x80 */\r
+ 0x0a000001, /* beq 81ac <sp_16_done> */\r
+ 0xe2811002, /* add r1, r1, #2 ; 0x2 */\r
+ 0xeaffffe8, /* b 8158 <sp_16_code> */\r
+ /* */\r
+ /* 000081ac <sp_16_done>: */\r
+ 0xeafffffe /* b 81ac <sp_16_done> */\r
+ };\r
+\r
+ u32 word_8_code[] = {\r
+ /* 000081b0 <sp_16_code_end>: */\r
+ 0xe4d05001, /* ldrb r5, [r0], #1 */\r
+ 0xe5c89000, /* strb r9, [r8] */\r
+ 0xe5cab000, /* strb r11, [r10] */\r
+ 0xe5c83000, /* strb r3, [r8] */\r
+ 0xe5c15000, /* strb r5, [r1] */\r
+ 0xe1a00000, /* nop (mov r0,r0) */\r
+ /* */\r
+ /* 000081c0 <sp_8_busy>: */\r
+ 0xe5d16000, /* ldrb r6, [r1] */\r
+ 0xe0257006, /* eor r7, r5, r6 */\r
+ 0xe0147007, /* ands r7, r4, r7 */\r
+ 0x0a000007, /* beq 81f0 <sp_8_cont> */\r
+ 0xe0166124, /* ands r6, r6, r4, lsr #2 */\r
+ 0x0afffff9, /* beq 81c0 <sp_8_busy> */\r
+ 0xe5d16000, /* ldrb r6, [r1] */\r
+ 0xe0257006, /* eor r7, r5, r6 */\r
+ 0xe0147007, /* ands r7, r4, r7 */\r
+ 0x0a000001, /* beq 81f0 <sp_8_cont> */\r
+ 0xe3a05000, /* mov r5, #0 ; 0x0 */\r
+ 0x1a000004, /* bne 8204 <sp_8_done> */\r
+ /* */\r
+ /* 000081f0 <sp_8_cont>: */\r
+ 0xe2522001, /* subs r2, r2, #1 ; 0x1 */\r
+ 0x03a05080, /* moveq r5, #128 ; 0x80 */\r
+ 0x0a000001, /* beq 8204 <sp_8_done> */\r
+ 0xe2811001, /* add r1, r1, #1 ; 0x1 */\r
+ 0xeaffffe8, /* b 81b0 <sp_16_code_end> */\r
+ /* */\r
+ /* 00008204 <sp_8_done>: */\r
+ 0xeafffffe /* b 8204 <sp_8_done> */\r
+ };\r
+\r
+ armv4_5_info.common_magic = ARMV4_5_COMMON_MAGIC;\r
+ armv4_5_info.core_mode = ARMV4_5_MODE_SVC;\r
+ armv4_5_info.core_state = ARMV4_5_STATE_ARM;\r
+\r
+ /* flash write code */\r
+ if (!cfi_info->write_algorithm)\r
+ {\r
+ u8 *code_p;\r
+\r
+ /* convert bus-width dependent algorithm code to correct endiannes */\r
+ if (bank->bus_width == 1)\r
+ {\r
+ code_p = malloc(24 * 4);\r
+\r
+ for (i = 0; i < 24; i++)\r
+ target_buffer_set_u32(target, code_p + (i*4), word_8_code[i]);\r
+ }\r
+ else if (bank->bus_width == 2)\r
+ {\r
+ code_p = malloc(24 * 4);\r
+\r
+ for (i = 0; i < 24; i++)\r
+ target_buffer_set_u32(target, code_p + (i*4), word_16_code[i]);\r
+ }\r
+ else if (bank->bus_width == 4)\r
+ {\r
+ code_p = malloc(24 * 4);\r
+\r
+ for (i = 0; i < 24; i++)\r
+ target_buffer_set_u32(target, code_p + (i*4), word_32_code[i]);\r
+ }\r
+ else\r
+ {\r
+ return ERROR_FLASH_OPERATION_FAILED;\r
+ }\r
+\r
+ /* allocate working area */\r
+ if (target_alloc_working_area(target, 24 * 4,\r
+ &cfi_info->write_algorithm) != ERROR_OK)\r
+ {\r
+ WARNING("no working area available, can't do block memory writes");\r
+ return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;\r
+ }\r
+\r
+ /* write algorithm code to working area */\r
+ target_write_buffer(target, cfi_info->write_algorithm->address, 24 * 4, code_p);\r
+\r
+ free(code_p);\r
+ }\r
+\r
+ while (target_alloc_working_area(target, buffer_size, &source) != ERROR_OK)\r
+ {\r
+ buffer_size /= 2;\r
+ if (buffer_size <= 256)\r
+ {\r
+ /* if we already allocated the writing code, but failed to get a buffer, free the algorithm */\r
+ if (cfi_info->write_algorithm)\r
+ target_free_working_area(target, cfi_info->write_algorithm);\r
+\r
+ WARNING("not enough working area available, can't do block memory writes");\r
+ return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;\r
+ }\r
+ };\r
+\r
+ init_reg_param(®_params[0], "r0", 32, PARAM_OUT);\r
+ init_reg_param(®_params[1], "r1", 32, PARAM_OUT);\r
+ init_reg_param(®_params[2], "r2", 32, PARAM_OUT);\r
+ init_reg_param(®_params[3], "r3", 32, PARAM_OUT);\r
+ init_reg_param(®_params[4], "r4", 32, PARAM_OUT);\r
+ init_reg_param(®_params[5], "r5", 32, PARAM_IN);\r
+ init_reg_param(®_params[6], "r8", 32, PARAM_OUT);\r
+ init_reg_param(®_params[7], "r9", 32, PARAM_OUT);\r
+ init_reg_param(®_params[8], "r10", 32, PARAM_OUT);\r
+ init_reg_param(®_params[9], "r11", 32, PARAM_OUT);\r
+\r
+ while (count > 0)\r
+ {\r
+ u32 thisrun_count = (count > buffer_size) ? buffer_size : count;\r
+\r
+ target_write_buffer(target, source->address, thisrun_count, buffer);\r
+\r
+ buf_set_u32(reg_params[0].value, 0, 32, source->address);\r
+ buf_set_u32(reg_params[1].value, 0, 32, address);\r
+ buf_set_u32(reg_params[2].value, 0, 32, thisrun_count / bank->bus_width);\r
+ cfi_command(bank, 0xA0, write_command);\r
+ buf_set_u32(reg_params[3].value, 0, 32, buf_get_u32(write_command, 0, 32));\r
+ cfi_command(bank, 0x80, write_command);\r
+ buf_set_u32(reg_params[4].value, 0, 32, buf_get_u32(write_command, 0, 32));\r
+ buf_set_u32(reg_params[6].value, 0, 32, flash_address(bank, 0, pri_ext->_unlock1));\r
+ buf_set_u32(reg_params[7].value, 0, 32, 0xaa);\r
+ buf_set_u32(reg_params[8].value, 0, 32, flash_address(bank, 0, pri_ext->_unlock2));\r
+ buf_set_u32(reg_params[9].value, 0, 32, 0x55);\r
+\r
+ retval = target->type->run_algorithm(target, 0, NULL, 10, reg_params,\r
+ cfi_info->write_algorithm->address,\r
+ cfi_info->write_algorithm->address + ((24 * 4) - 4),\r
+ 10000, &armv4_5_info);\r
+\r
+ status = buf_get_u32(reg_params[5].value, 0, 32);\r
+\r
+ if ((retval != ERROR_OK) || status != 0x80)\r
+ {\r
+ DEBUG("status: 0x%x", status);\r
+ exit_code = ERROR_FLASH_OPERATION_FAILED;\r
+ break;\r
+ }\r
+\r
+ buffer += thisrun_count;\r
+ address += thisrun_count;\r
+ count -= thisrun_count;\r
+ }\r
+\r
+ target_free_working_area(target, source);\r
+\r
+ destroy_reg_param(®_params[0]);\r
+ destroy_reg_param(®_params[1]);\r
+ destroy_reg_param(®_params[2]);\r
+ destroy_reg_param(®_params[3]);\r
+ destroy_reg_param(®_params[4]);\r
+ destroy_reg_param(®_params[5]);\r
+ destroy_reg_param(®_params[6]);\r
+ destroy_reg_param(®_params[7]);\r
+ destroy_reg_param(®_params[8]);\r
+ destroy_reg_param(®_params[9]);\r
+\r
+ return exit_code;\r
+}\r
+\r
+int cfi_intel_write_word(struct flash_bank_s *bank, u8 *word, u32 address)\r
+{\r
+ cfi_flash_bank_t *cfi_info = bank->driver_priv;\r
+ target_t *target = bank->target;\r
+ u8 command[8];\r
+\r
+ cfi_intel_clear_status_register(bank);\r
+ cfi_command(bank, 0x40, command);\r
+ target->type->write_memory(target, address, bank->bus_width, 1, command);\r
+\r
+ target->type->write_memory(target, address, bank->bus_width, 1, word);\r
+\r
+ if (cfi_intel_wait_status_busy(bank, 1000 * (1 << cfi_info->word_write_timeout_max)) != 0x80)\r
+ {\r
+ cfi_command(bank, 0xff, command);\r
+ target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);\r
+\r
+ ERROR("couldn't write word at base 0x%x, address %x", bank->base, address);\r
+ return ERROR_FLASH_OPERATION_FAILED;\r
+ }\r
+\r
+ return ERROR_OK;\r
+}\r
+\r
+int cfi_intel_write_words(struct flash_bank_s *bank, u8 *word, u32 wordcount, u32 address)\r
+{\r
+ cfi_flash_bank_t *cfi_info = bank->driver_priv;\r
+ target_t *target = bank->target;\r
+ u8 command[8];\r
+\r
+ /* Calculate buffer size and boundary mask */\r
+ u32 buffersize = 1UL << cfi_info->max_buf_write_size;\r
+ u32 buffermask = buffersize-1;\r
+ u32 bufferwsize;\r
+\r
+ /* Check for valid range */\r
+ if (address & buffermask)\r
+ {\r
+ ERROR("Write address at base 0x%x, address %x not aligned to 2^%d boundary", bank->base, address, cfi_info->max_buf_write_size);\r
+ return ERROR_FLASH_OPERATION_FAILED;\r
+ }\r
+ switch(bank->chip_width)\r
+ {\r
+ case 4 : bufferwsize = buffersize / 4; break;\r
+ case 2 : bufferwsize = buffersize / 2; break;\r
+ case 1 : bufferwsize = buffersize; break;\r
+ default:\r
+ ERROR("Unsupported chip width %d", bank->chip_width);\r
+ return ERROR_FLASH_OPERATION_FAILED;\r
+ }\r
+\r
+ /* Check for valid size */\r
+ if (wordcount > bufferwsize)\r
+ {\r
+ ERROR("Number of data words %d exceeds available buffersize %d", wordcount, buffersize);\r
+ return ERROR_FLASH_OPERATION_FAILED;\r
+ }\r
+\r
+ /* Write to flash buffer */\r
+ cfi_intel_clear_status_register(bank);\r
+\r
+ /* Initiate buffer operation _*/\r
+ cfi_command(bank, 0xE8, command);\r
+ target->type->write_memory(target, address, bank->bus_width, 1, command);\r
+ if (cfi_intel_wait_status_busy(bank, 1000 * (1 << cfi_info->buf_write_timeout_max)) != 0x80)\r
+ {\r
+ cfi_command(bank, 0xff, command);\r
+ target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);\r
+\r
+ ERROR("couldn't start buffer write operation at base 0x%x, address %x", bank->base, address);\r
+ return ERROR_FLASH_OPERATION_FAILED;\r
+ }\r
+\r
+ /* Write buffer wordcount-1 and data words */\r
+ cfi_command(bank, bufferwsize-1, command);\r
+ target->type->write_memory(target, address, bank->bus_width, 1, command);\r
+\r
+ target->type->write_memory(target, address, bank->bus_width, bufferwsize, word);\r
+\r
+ /* Commit write operation */\r
+ cfi_command(bank, 0xd0, command);\r
+ target->type->write_memory(target, address, bank->bus_width, 1, command);\r
+ if (cfi_intel_wait_status_busy(bank, 1000 * (1 << cfi_info->buf_write_timeout_max)) != 0x80)\r
+ {\r
+ cfi_command(bank, 0xff, command);\r
+ target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);\r
+\r
+ ERROR("Buffer write at base 0x%x, address %x failed.", bank->base, address);\r
+ return ERROR_FLASH_OPERATION_FAILED;\r
+ }\r
+\r
+ return ERROR_OK;\r
+}\r
+\r
+int cfi_spansion_write_word(struct flash_bank_s *bank, u8 *word, u32 address)\r
+{\r
+ cfi_flash_bank_t *cfi_info = bank->driver_priv;\r
+ cfi_spansion_pri_ext_t *pri_ext = cfi_info->pri_ext;\r
+ target_t *target = bank->target;\r
+ u8 command[8];\r
+\r
+ cfi_command(bank, 0xaa, command);\r
+ target->type->write_memory(target, flash_address(bank, 0, pri_ext->_unlock1), bank->bus_width, 1, command);\r
+\r
+ cfi_command(bank, 0x55, command);\r
+ target->type->write_memory(target, flash_address(bank, 0, pri_ext->_unlock2), bank->bus_width, 1, command);\r
+\r
+ cfi_command(bank, 0xa0, command);\r
+ target->type->write_memory(target, flash_address(bank, 0, pri_ext->_unlock1), bank->bus_width, 1, command);\r
+\r
+ target->type->write_memory(target, address, bank->bus_width, 1, word);\r
+\r
+ if (cfi_spansion_wait_status_busy(bank, 1000 * (1 << cfi_info->word_write_timeout_max)) != ERROR_OK)\r
+ {\r
+ cfi_command(bank, 0xf0, command);\r
+ target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);\r
+\r
+ ERROR("couldn't write word at base 0x%x, address %x", bank->base, address);\r
+ return ERROR_FLASH_OPERATION_FAILED;\r
+ }\r
+\r
+ return ERROR_OK;\r
+}\r
+\r
+int cfi_write_word(struct flash_bank_s *bank, u8 *word, u32 address)\r
+{\r
+ cfi_flash_bank_t *cfi_info = bank->driver_priv;\r
+\r
+ switch(cfi_info->pri_id)\r
+ {\r
+ case 1:\r
+ case 3:\r
+ return cfi_intel_write_word(bank, word, address);\r
+ break;\r
+ case 2:\r
+ return cfi_spansion_write_word(bank, word, address);\r
+ break;\r
+ default:\r
+ ERROR("cfi primary command set %i unsupported", cfi_info->pri_id);\r
+ break;\r
+ }\r
+\r
+ return ERROR_FLASH_OPERATION_FAILED;\r
+}\r
+\r
+int cfi_write_words(struct flash_bank_s *bank, u8 *word, u32 wordcount, u32 address)\r
+{\r
+ cfi_flash_bank_t *cfi_info = bank->driver_priv;\r
+\r
+ switch(cfi_info->pri_id)\r
+ {\r
+ case 1:\r
+ case 3:\r
+ return cfi_intel_write_words(bank, word, wordcount, address);\r
+ break;\r
+ case 2:\r
+ //return cfi_spansion_write_words(bank, word, address);\r
+ ERROR("cfi primary command set %i unimplemented - FIXME", cfi_info->pri_id);\r
+ break;\r
+ default:\r
+ ERROR("cfi primary command set %i unsupported", cfi_info->pri_id);\r
+ break;\r
+ }\r
+\r
+ return ERROR_FLASH_OPERATION_FAILED;\r
+}\r
+\r
+int cfi_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count)\r
+{\r
+ cfi_flash_bank_t *cfi_info = bank->driver_priv;\r
+ target_t *target = bank->target;\r
+ u32 address = bank->base + offset; /* address of first byte to be programmed */\r
+ u32 write_p, copy_p;\r
+ int align; /* number of unaligned bytes */\r
+ int blk_count; /* number of bus_width bytes for block copy */\r
+ u8 current_word[CFI_MAX_BUS_WIDTH * 4]; /* word (bus_width size) currently being programmed */\r
+ int i;\r
+ int retval;\r
+\r
+ if (bank->target->state != TARGET_HALTED)\r
+ {\r
+ return ERROR_TARGET_NOT_HALTED;\r
+ }\r
+\r
+ if (offset + count > bank->size)\r
+ return ERROR_FLASH_DST_OUT_OF_BANK;\r
+\r
+ if (cfi_info->qry[0] != 'Q')\r
+ return ERROR_FLASH_BANK_NOT_PROBED;\r
+\r
+ /* start at the first byte of the first word (bus_width size) */\r
+ write_p = address & ~(bank->bus_width - 1);\r
+ if ((align = address - write_p) != 0)\r
+ {\r
+ INFO("Fixup %d unaligned head bytes", align );\r
+\r
+ for (i = 0; i < bank->bus_width; i++)\r
+ current_word[i] = 0;\r
+ copy_p = write_p;\r
+\r
+ /* copy bytes before the first write address */\r
+ for (i = 0; i < align; ++i, ++copy_p)\r
+ {\r
+ u8 byte;\r
+ target->type->read_memory(target, copy_p, 1, 1, &byte);\r
+ cfi_add_byte(bank, current_word, byte);\r
+ }\r
+\r
+ /* add bytes from the buffer */\r
+ for (; (i < bank->bus_width) && (count > 0); i++)\r
+ {\r
+ cfi_add_byte(bank, current_word, *buffer++);\r
+ count--;\r
+ copy_p++;\r
+ }\r
+\r
+ /* if the buffer is already finished, copy bytes after the last write address */\r
+ for (; (count == 0) && (i < bank->bus_width); ++i, ++copy_p)\r
+ {\r
+ u8 byte;\r
+ target->type->read_memory(target, copy_p, 1, 1, &byte);\r
+ cfi_add_byte(bank, current_word, byte);\r
+ }\r
+\r
+ retval = cfi_write_word(bank, current_word, write_p);\r
+ if (retval != ERROR_OK)\r
+ return retval;\r
+ write_p = copy_p;\r
+ }\r
+\r
+ /* handle blocks of bus_size aligned bytes */\r
+ blk_count = count & ~(bank->bus_width - 1); /* round down, leave tail bytes */\r
+ switch(cfi_info->pri_id)\r
+ {\r
+ /* try block writes (fails without working area) */\r
+ case 1:\r
+ case 3:\r
+ retval = cfi_intel_write_block(bank, buffer, write_p, blk_count);\r
+ break;\r
+ case 2:\r
+ retval = cfi_spansion_write_block(bank, buffer, write_p, blk_count);\r
+ break;\r
+ default:\r
+ ERROR("cfi primary command set %i unsupported", cfi_info->pri_id);\r
+ retval = ERROR_FLASH_OPERATION_FAILED;\r
+ break;\r
+ }\r
+ if (retval == ERROR_OK)\r
+ {\r
+ /* Increment pointers and decrease count on succesful block write */\r
+ buffer += blk_count;\r
+ write_p += blk_count;\r
+ count -= blk_count;\r
+ }\r
+ else\r
+ {\r
+ if (retval == ERROR_TARGET_RESOURCE_NOT_AVAILABLE)\r
+ {\r
+ u32 buffersize = 1UL << cfi_info->max_buf_write_size;\r
+ u32 buffermask = buffersize-1;\r
+ u32 bufferwsize;\r
+\r
+ switch(bank->chip_width)\r
+ {\r
+ case 4 : bufferwsize = buffersize / 4; break;\r
+ case 2 : bufferwsize = buffersize / 2; break;\r
+ case 1 : bufferwsize = buffersize; break;\r
+ default:\r
+ ERROR("Unsupported chip width %d", bank->chip_width);\r
+ return ERROR_FLASH_OPERATION_FAILED;\r
+ }\r
+\r
+ /* fall back to memory writes */\r
+ while (count > bank->bus_width)\r
+ {\r
+ if ((write_p & 0xff) == 0)\r
+ {\r
+ INFO("Programming at %08x, count %08x bytes remaining", write_p, count);\r
+ }\r
+#if 0\r
+ /* NB! this is broken for spansion! */\r
+ if ((count > bufferwsize) && !(write_p & buffermask))\r
+ {\r
+ retval = cfi_write_words(bank, buffer, bufferwsize, write_p);\r
+ if (retval != ERROR_OK)\r
+ return retval;\r
+\r
+ buffer += buffersize;\r
+ write_p += buffersize;\r
+ count -= buffersize;\r
+ }\r
+ else\r
+#endif\r
+ {\r
+ for (i = 0; i < bank->bus_width; i++)\r
+ current_word[i] = 0;\r
+\r
+ for (i = 0; i < bank->bus_width; i++)\r
+ {\r
+ cfi_add_byte(bank, current_word, *buffer++);\r
+ }\r
+\r
+ retval = cfi_write_word(bank, current_word, write_p);\r
+ if (retval != ERROR_OK)\r
+ return retval;\r
+\r
+ write_p += bank->bus_width;\r
+ count -= bank->bus_width;\r
+ }\r
+ }\r
+ }\r
+ else\r
+ return retval;\r
+ }\r
+\r
+ /* return to read array mode, so we can read from flash again for padding */\r
+ cfi_command(bank, 0xf0, current_word);\r
+ target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, current_word);\r
+ cfi_command(bank, 0xff, current_word);\r
+ target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, current_word);\r
+\r
+ /* handle unaligned tail bytes */\r
+ if (count > 0)\r
+ {\r
+ INFO("Fixup %d unaligned tail bytes", count );\r
+\r
+ copy_p = write_p;\r
+ for (i = 0; i < bank->bus_width; i++)\r
+ current_word[i] = 0;\r
+\r
+ for (i = 0; (i < bank->bus_width) && (count > 0); ++i, ++copy_p)\r
+ {\r
+ cfi_add_byte(bank, current_word, *buffer++);\r
+ count--;\r
+ }\r
+ for (; i < bank->bus_width; ++i, ++copy_p)\r
+ {\r
+ u8 byte;\r
+ target->type->read_memory(target, copy_p, 1, 1, &byte);\r
+ cfi_add_byte(bank, current_word, byte);\r
+ }\r
+ retval = cfi_write_word(bank, current_word, write_p);\r
+ if (retval != ERROR_OK)\r
+ return retval;\r
+ }\r
+\r
+ /* return to read array mode */\r
+ cfi_command(bank, 0xf0, current_word);\r
+ target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, current_word);\r
+ cfi_command(bank, 0xff, current_word);\r
+ target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, current_word);\r
+\r
+ return ERROR_OK;\r
+}\r
+\r
+void cfi_fixup_atmel_reversed_erase_regions(flash_bank_t *bank, void *param)\r
+{\r
+ cfi_flash_bank_t *cfi_info = bank->driver_priv;\r
+ cfi_spansion_pri_ext_t *pri_ext = cfi_info->pri_ext;\r
+\r
+ pri_ext->_reversed_geometry = 1;\r
+}\r
+\r
+void cfi_fixup_0002_erase_regions(flash_bank_t *bank, void *param)\r
+{\r
+ int i;\r
+ cfi_flash_bank_t *cfi_info = bank->driver_priv;\r
+ cfi_spansion_pri_ext_t *pri_ext = cfi_info->pri_ext;\r
+\r
+ if ((pri_ext->_reversed_geometry) || (pri_ext->TopBottom == 3))\r
+ {\r
+ DEBUG("swapping reversed erase region information on cmdset 0002 device");\r
+\r
+ for (i = 0; i < cfi_info->num_erase_regions / 2; i++)\r
+ {\r
+ int j = (cfi_info->num_erase_regions - 1) - i;\r
+ u32 swap;\r
+\r
+ swap = cfi_info->erase_region_info[i];\r
+ cfi_info->erase_region_info[i] = cfi_info->erase_region_info[j];\r
+ cfi_info->erase_region_info[j] = swap;\r
+ }\r
+ }\r
+}\r
+\r
+void cfi_fixup_0002_unlock_addresses(flash_bank_t *bank, void *param)\r
+{\r
+ cfi_flash_bank_t *cfi_info = bank->driver_priv;\r
+ cfi_spansion_pri_ext_t *pri_ext = cfi_info->pri_ext;\r
+ cfi_unlock_addresses_t *unlock_addresses = param;\r
+\r
+ pri_ext->_unlock1 = unlock_addresses->unlock1;\r
+ pri_ext->_unlock2 = unlock_addresses->unlock2;\r
+}\r
+\r
+int cfi_probe(struct flash_bank_s *bank)\r
+{\r
+ cfi_flash_bank_t *cfi_info = bank->driver_priv;\r
+ target_t *target = bank->target;\r
+ u8 command[8];\r
+ int num_sectors = 0;\r
+ int i;\r
+ int sector = 0;\r
+ u32 offset = 0;\r
+ u32 unlock1 = 0x555;\r
+ u32 unlock2 = 0x2aa;\r
+\r
+ cfi_info->probed = 0;\r
+\r
+ /* JEDEC standard JESD21C uses 0x5555 and 0x2aaa as unlock addresses,\r
+ * while CFI compatible AMD/Spansion flashes use 0x555 and 0x2aa\r
+ */\r
+ if (cfi_info->jedec_probe)\r
+ {\r
+ unlock1 = 0x5555;\r
+ unlock2 = 0x2aaa;\r
+ }\r
+\r
+ /* switch to read identifier codes mode ("AUTOSELECT") */\r
+ cfi_command(bank, 0xaa, command);\r
+ target->type->write_memory(target, flash_address(bank, 0, unlock1), bank->bus_width, 1, command);\r
+ cfi_command(bank, 0x55, command);\r
+ target->type->write_memory(target, flash_address(bank, 0, unlock2), bank->bus_width, 1, command);\r
+ cfi_command(bank, 0x90, command);\r
+ target->type->write_memory(target, flash_address(bank, 0, unlock1), bank->bus_width, 1, command);\r
+\r
+ if (bank->chip_width == 1)\r
+ {\r
+ u8 manufacturer, device_id;\r
+ target_read_u8(target, bank->base + 0x0, &manufacturer);\r
+ target_read_u8(target, bank->base + 0x1, &device_id);\r
+ cfi_info->manufacturer = manufacturer;\r
+ cfi_info->device_id = device_id;\r
+ }\r
+ else if (bank->chip_width == 2)\r
+ {\r
+ target_read_u16(target, bank->base + 0x0, &cfi_info->manufacturer);\r
+ target_read_u16(target, bank->base + 0x2, &cfi_info->device_id);\r
+ }\r
+\r
+ /* switch back to read array mode */\r
+ cfi_command(bank, 0xf0, command);\r
+ target->type->write_memory(target, flash_address(bank, 0, 0x00), bank->bus_width, 1, command);\r
+ cfi_command(bank, 0xff, command);\r
+ target->type->write_memory(target, flash_address(bank, 0, 0x00), bank->bus_width, 1, command);\r
+\r
+ cfi_fixup(bank, cfi_jedec_fixups);\r
+\r
+ /* query only if this is a CFI compatible flash,\r
+ * otherwise the relevant info has already been filled in\r
+ */\r
+ if (cfi_info->not_cfi == 0)\r
+ {\r
+ /* enter CFI query mode\r
+ * according to JEDEC Standard No. 68.01,\r
+ * a single bus sequence with address = 0x55, data = 0x98 should put\r
+ * the device into CFI query mode.\r
+ *\r
+ * SST flashes clearly violate this, and we will consider them incompatbile for now\r
+ */\r
+ cfi_command(bank, 0x98, command);\r
+ target->type->write_memory(target, flash_address(bank, 0, 0x55), bank->bus_width, 1, command);\r
+\r
+ cfi_info->qry[0] = cfi_query_u8(bank, 0, 0x10);\r
+ cfi_info->qry[1] = cfi_query_u8(bank, 0, 0x11);\r
+ cfi_info->qry[2] = cfi_query_u8(bank, 0, 0x12);\r
+\r
+ 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]);\r
+\r
+ if ((cfi_info->qry[0] != 'Q') || (cfi_info->qry[1] != 'R') || (cfi_info->qry[2] != 'Y'))\r
+ {\r
+ cfi_command(bank, 0xf0, command);\r
+ target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);\r
+ cfi_command(bank, 0xff, command);\r
+ target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);\r
+ return ERROR_FLASH_BANK_INVALID;\r
+ }\r
+\r
+ cfi_info->pri_id = cfi_query_u16(bank, 0, 0x13);\r
+ cfi_info->pri_addr = cfi_query_u16(bank, 0, 0x15);\r
+ cfi_info->alt_id = cfi_query_u16(bank, 0, 0x17);\r
+ cfi_info->alt_addr = cfi_query_u16(bank, 0, 0x19);\r
+\r
+ 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);\r
+\r
+ cfi_info->vcc_min = cfi_query_u8(bank, 0, 0x1b);\r
+ cfi_info->vcc_max = cfi_query_u8(bank, 0, 0x1c);\r
+ cfi_info->vpp_min = cfi_query_u8(bank, 0, 0x1d);\r
+ cfi_info->vpp_max = cfi_query_u8(bank, 0, 0x1e);\r
+ cfi_info->word_write_timeout_typ = cfi_query_u8(bank, 0, 0x1f);\r
+ cfi_info->buf_write_timeout_typ = cfi_query_u8(bank, 0, 0x20);\r
+ cfi_info->block_erase_timeout_typ = cfi_query_u8(bank, 0, 0x21);\r
+ cfi_info->chip_erase_timeout_typ = cfi_query_u8(bank, 0, 0x22);\r
+ cfi_info->word_write_timeout_max = cfi_query_u8(bank, 0, 0x23);\r
+ cfi_info->buf_write_timeout_max = cfi_query_u8(bank, 0, 0x24);\r
+ cfi_info->block_erase_timeout_max = cfi_query_u8(bank, 0, 0x25);\r
+ cfi_info->chip_erase_timeout_max = cfi_query_u8(bank, 0, 0x26);\r
+\r
+ 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",\r
+ (cfi_info->vcc_min & 0xf0) >> 4, cfi_info->vcc_min & 0x0f,\r
+ (cfi_info->vcc_max & 0xf0) >> 4, cfi_info->vcc_max & 0x0f,\r
+ (cfi_info->vpp_min & 0xf0) >> 4, cfi_info->vpp_min & 0x0f,\r
+ (cfi_info->vpp_max & 0xf0) >> 4, cfi_info->vpp_max & 0x0f);\r
+ 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,\r
+ 1 << cfi_info->block_erase_timeout_typ, 1 << cfi_info->chip_erase_timeout_typ);\r
+ 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),\r
+ (1 << cfi_info->buf_write_timeout_max) * (1 << cfi_info->buf_write_timeout_typ),\r
+ (1 << cfi_info->block_erase_timeout_max) * (1 << cfi_info->block_erase_timeout_typ),\r
+ (1 << cfi_info->chip_erase_timeout_max) * (1 << cfi_info->chip_erase_timeout_typ));\r
+\r
+ cfi_info->dev_size = cfi_query_u8(bank, 0, 0x27);\r
+ cfi_info->interface_desc = cfi_query_u16(bank, 0, 0x28);\r
+ cfi_info->max_buf_write_size = cfi_query_u16(bank, 0, 0x2a);\r
+ cfi_info->num_erase_regions = cfi_query_u8(bank, 0, 0x2c);\r
+\r
+ 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));\r
+\r
+ if (((1 << cfi_info->dev_size) * bank->bus_width / bank->chip_width) != bank->size)\r
+ {\r
+ WARNING("configuration specifies 0x%x size, but a 0x%x size flash was found", bank->size, 1 << cfi_info->dev_size);\r
+ }\r
+\r
+ if (cfi_info->num_erase_regions)\r
+ {\r
+ cfi_info->erase_region_info = malloc(4 * cfi_info->num_erase_regions);\r
+ for (i = 0; i < cfi_info->num_erase_regions; i++)\r
+ {\r
+ cfi_info->erase_region_info[i] = cfi_query_u32(bank, 0, 0x2d + (4 * i));\r
+ 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);\r
+ }\r
+ }\r
+ else\r
+ {\r
+ cfi_info->erase_region_info = NULL;\r
+ }\r
+\r
+ /* We need to read the primary algorithm extended query table before calculating\r
+ * the sector layout to be able to apply fixups\r
+ */\r
+ switch(cfi_info->pri_id)\r
+ {\r
+ /* Intel command set (standard and extended) */\r
+ case 0x0001:\r
+ case 0x0003:\r
+ cfi_read_intel_pri_ext(bank);\r
+ break;\r
+ /* AMD/Spansion, Atmel, ... command set */\r
+ case 0x0002:\r
+ cfi_read_0002_pri_ext(bank);\r
+ break;\r
+ default:\r
+ ERROR("cfi primary command set %i unsupported", cfi_info->pri_id);\r
+ break;\r
+ }\r
+\r
+ /* return to read array mode\r
+ * we use both reset commands, as some Intel flashes fail to recognize the 0xF0 command\r
+ */\r
+ cfi_command(bank, 0xf0, command);\r
+ target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);\r
+ cfi_command(bank, 0xff, command);\r
+ target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);\r
+ }\r
+\r
+ /* apply fixups depending on the primary command set */\r
+ switch(cfi_info->pri_id)\r
+ {\r
+ /* Intel command set (standard and extended) */\r
+ case 0x0001:\r
+ case 0x0003:\r
+ cfi_fixup(bank, cfi_0001_fixups);\r
+ break;\r
+ /* AMD/Spansion, Atmel, ... command set */\r
+ case 0x0002:\r
+ cfi_fixup(bank, cfi_0002_fixups);\r
+ break;\r
+ default:\r
+ ERROR("cfi primary command set %i unsupported", cfi_info->pri_id);\r
+ break;\r
+ }\r
+\r
+ if (cfi_info->num_erase_regions == 0)\r
+ {\r
+ /* a device might have only one erase block, spanning the whole device */\r
+ bank->num_sectors = 1;\r
+ bank->sectors = malloc(sizeof(flash_sector_t));\r
+\r
+ bank->sectors[sector].offset = 0x0;\r
+ bank->sectors[sector].size = bank->size;\r
+ bank->sectors[sector].is_erased = -1;\r
+ bank->sectors[sector].is_protected = -1;\r
+ }\r
+ else\r
+ {\r
+ for (i = 0; i < cfi_info->num_erase_regions; i++)\r
+ {\r
+ num_sectors += (cfi_info->erase_region_info[i] & 0xffff) + 1;\r
+ }\r
+\r
+ bank->num_sectors = num_sectors;\r
+ bank->sectors = malloc(sizeof(flash_sector_t) * num_sectors);\r
+\r
+ for (i = 0; i < cfi_info->num_erase_regions; i++)\r
+ {\r
+ int j;\r
+ for (j = 0; j < (cfi_info->erase_region_info[i] & 0xffff) + 1; j++)\r
+ {\r
+ bank->sectors[sector].offset = offset;\r
+ bank->sectors[sector].size = ((cfi_info->erase_region_info[i] >> 16) * 256) * bank->bus_width / bank->chip_width;\r
+ offset += bank->sectors[sector].size;\r
+ bank->sectors[sector].is_erased = -1;\r
+ bank->sectors[sector].is_protected = -1;\r
+ sector++;\r
+ }\r
+ }\r
+ }\r
+ \r
+ cfi_info->probed = 1;\r
+\r
+ return ERROR_OK;\r
+}\r
+\r
+int cfi_auto_probe(struct flash_bank_s *bank)\r
+{\r
+ cfi_flash_bank_t *cfi_info = bank->driver_priv;\r
+ if (cfi_info->probed)\r
+ return ERROR_OK;\r
+ return cfi_probe(bank);\r
+}\r
+\r
+int cfi_erase_check(struct flash_bank_s *bank)\r
+{\r
+ cfi_flash_bank_t *cfi_info = bank->driver_priv;\r
+ target_t *target = bank->target;\r
+ int i;\r
+ int retval;\r
+\r
+ if (!cfi_info->erase_check_algorithm)\r
+ {\r
+ u32 erase_check_code[] =\r
+ {\r
+ 0xe4d03001, /* ldrb r3, [r0], #1 */\r
+ 0xe0022003, /* and r2, r2, r3 */\r
+ 0xe2511001, /* subs r1, r1, #1 */\r
+ 0x1afffffb, /* b -4 */\r
+ 0xeafffffe /* b 0 */\r
+ };\r
+\r
+ /* make sure we have a working area */\r
+ if (target_alloc_working_area(target, 20, &cfi_info->erase_check_algorithm) != ERROR_OK)\r
+ {\r
+ WARNING("no working area available, falling back to slow memory reads");\r
+ }\r
+ else\r
+ {\r
+ u8 erase_check_code_buf[5 * 4];\r
+\r
+ for (i = 0; i < 5; i++)\r
+ target_buffer_set_u32(target, erase_check_code_buf + (i*4), erase_check_code[i]);\r
+\r
+ /* write algorithm code to working area */\r
+ target->type->write_memory(target, cfi_info->erase_check_algorithm->address, 4, 5, erase_check_code_buf);\r
+ }\r
+ }\r
+\r
+ if (!cfi_info->erase_check_algorithm)\r
+ {\r
+ u32 *buffer = malloc(4096);\r
+\r
+ for (i = 0; i < bank->num_sectors; i++)\r
+ {\r
+ u32 address = bank->base + bank->sectors[i].offset;\r
+ u32 size = bank->sectors[i].size;\r
+ u32 check = 0xffffffffU;\r
+ int erased = 1;\r
+\r
+ while (size > 0)\r
+ {\r
+ u32 thisrun_size = (size > 4096) ? 4096 : size;\r
+ int j;\r
+\r
+ target->type->read_memory(target, address, 4, thisrun_size / 4, (u8*)buffer);\r
+\r
+ for (j = 0; j < thisrun_size / 4; j++)\r
+ check &= buffer[j];\r
+\r
+ if (check != 0xffffffff)\r
+ {\r
+ erased = 0;\r
+ break;\r
+ }\r
+\r
+ size -= thisrun_size;\r
+ address += thisrun_size;\r
+ }\r
+\r
+ bank->sectors[i].is_erased = erased;\r
+ }\r
+\r
+ free(buffer);\r
+ }\r
+ else\r
+ {\r
+ for (i = 0; i < bank->num_sectors; i++)\r
+ {\r
+ u32 address = bank->base + bank->sectors[i].offset;\r
+ u32 size = bank->sectors[i].size;\r
+\r
+ reg_param_t reg_params[3];\r
+ armv4_5_algorithm_t armv4_5_info;\r
+\r
+ armv4_5_info.common_magic = ARMV4_5_COMMON_MAGIC;\r
+ armv4_5_info.core_mode = ARMV4_5_MODE_SVC;\r
+ armv4_5_info.core_state = ARMV4_5_STATE_ARM;\r
+\r
+ init_reg_param(®_params[0], "r0", 32, PARAM_OUT);\r
+ buf_set_u32(reg_params[0].value, 0, 32, address);\r
+\r
+ init_reg_param(®_params[1], "r1", 32, PARAM_OUT);\r
+ buf_set_u32(reg_params[1].value, 0, 32, size);\r
+\r
+ init_reg_param(®_params[2], "r2", 32, PARAM_IN_OUT);\r
+ buf_set_u32(reg_params[2].value, 0, 32, 0xff);\r
+\r
+ 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)\r
+ return ERROR_FLASH_OPERATION_FAILED;\r
+\r
+ if (buf_get_u32(reg_params[2].value, 0, 32) == 0xff)\r
+ bank->sectors[i].is_erased = 1;\r
+ else\r
+ bank->sectors[i].is_erased = 0;\r
+\r
+ destroy_reg_param(®_params[0]);\r
+ destroy_reg_param(®_params[1]);\r
+ destroy_reg_param(®_params[2]);\r
+ }\r
+ }\r
+\r
+ return ERROR_OK;\r
+}\r
+\r
+int cfi_intel_protect_check(struct flash_bank_s *bank)\r
+{\r
+ cfi_flash_bank_t *cfi_info = bank->driver_priv;\r
+ cfi_intel_pri_ext_t *pri_ext = cfi_info->pri_ext;\r
+ target_t *target = bank->target;\r
+ u8 command[CFI_MAX_BUS_WIDTH];\r
+ int i;\r
+\r
+ /* check if block lock bits are supported on this device */\r
+ if (!(pri_ext->blk_status_reg_mask & 0x1))\r
+ return ERROR_FLASH_OPERATION_FAILED;\r
+\r
+ cfi_command(bank, 0x90, command);\r
+ target->type->write_memory(target, flash_address(bank, 0, 0x55), bank->bus_width, 1, command);\r
+\r
+ for (i = 0; i < bank->num_sectors; i++)\r
+ {\r
+ u8 block_status = cfi_get_u8(bank, i, 0x2);\r
+\r
+ if (block_status & 1)\r
+ bank->sectors[i].is_protected = 1;\r
+ else\r
+ bank->sectors[i].is_protected = 0;\r
+ }\r
+\r
+ cfi_command(bank, 0xff, command);\r
+ target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);\r
+\r
+ return ERROR_OK;\r
+}\r
+\r
+int cfi_spansion_protect_check(struct flash_bank_s *bank)\r
+{\r
+ cfi_flash_bank_t *cfi_info = bank->driver_priv;\r
+ cfi_spansion_pri_ext_t *pri_ext = cfi_info->pri_ext;\r
+ target_t *target = bank->target;\r
+ u8 command[8];\r
+ int i;\r
+\r
+ cfi_command(bank, 0xaa, command);\r
+ target->type->write_memory(target, flash_address(bank, 0, pri_ext->_unlock1), bank->bus_width, 1, command);\r
+\r
+ cfi_command(bank, 0x55, command);\r
+ target->type->write_memory(target, flash_address(bank, 0, pri_ext->_unlock2), bank->bus_width, 1, command);\r
+\r
+ cfi_command(bank, 0x90, command);\r
+ target->type->write_memory(target, flash_address(bank, 0, pri_ext->_unlock1), bank->bus_width, 1, command);\r
+\r
+ for (i = 0; i < bank->num_sectors; i++)\r
+ {\r
+ u8 block_status = cfi_get_u8(bank, i, 0x2);\r
+\r
+ if (block_status & 1)\r
+ bank->sectors[i].is_protected = 1;\r
+ else\r
+ bank->sectors[i].is_protected = 0;\r
+ }\r
+\r
+ cfi_command(bank, 0xf0, command);\r
+ target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);\r
+\r
+ return ERROR_OK;\r
+}\r
+\r
+int cfi_protect_check(struct flash_bank_s *bank)\r
+{\r
+ cfi_flash_bank_t *cfi_info = bank->driver_priv;\r
+\r
+ if (cfi_info->qry[0] != 'Q')\r
+ return ERROR_FLASH_BANK_NOT_PROBED;\r
+\r
+ switch(cfi_info->pri_id)\r
+ {\r
+ case 1:\r
+ case 3:\r
+ return cfi_intel_protect_check(bank);\r
+ break;\r
+ case 2:\r
+ return cfi_spansion_protect_check(bank);\r
+ break;\r
+ default:\r
+ ERROR("cfi primary command set %i unsupported", cfi_info->pri_id);\r
+ break;\r
+ }\r
+\r
+ return ERROR_OK;\r
+}\r
+\r
+int cfi_info(struct flash_bank_s *bank, char *buf, int buf_size)\r
+{\r
+ int printed;\r
+ cfi_flash_bank_t *cfi_info = bank->driver_priv;\r
+\r
+ if (cfi_info->qry[0] == (char)-1)\r
+ {\r
+ printed = snprintf(buf, buf_size, "\ncfi flash bank not probed yet\n");\r
+ return ERROR_OK;\r
+ }\r
+\r
+ printed = snprintf(buf, buf_size, "\ncfi information:\n");\r
+ buf += printed;\r
+ buf_size -= printed;\r
+\r
+ printed = snprintf(buf, buf_size, "\nmfr: 0x%4.4x, id:0x%4.4x\n",\r
+ cfi_info->manufacturer, cfi_info->device_id);\r
+ buf += printed;\r
+ buf_size -= printed;\r
+\r
+ 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);\r
+ buf += printed;\r
+ buf_size -= printed;\r
+\r
+ 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,\r
+ (cfi_info->vcc_max & 0xf0) >> 4, cfi_info->vcc_max & 0x0f,\r
+ (cfi_info->vpp_min & 0xf0) >> 4, cfi_info->vpp_min & 0x0f,\r
+ (cfi_info->vpp_max & 0xf0) >> 4, cfi_info->vpp_max & 0x0f);\r
+ buf += printed;\r
+ buf_size -= printed;\r
+\r
+ 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,\r
+ 1 << cfi_info->block_erase_timeout_typ, 1 << cfi_info->chip_erase_timeout_typ);\r
+ buf += printed;\r
+ buf_size -= printed;\r
+\r
+ 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),\r
+ (1 << cfi_info->buf_write_timeout_max) * (1 << cfi_info->buf_write_timeout_typ),\r
+ (1 << cfi_info->block_erase_timeout_max) * (1 << cfi_info->block_erase_timeout_typ),\r
+ (1 << cfi_info->chip_erase_timeout_max) * (1 << cfi_info->chip_erase_timeout_typ));\r
+ buf += printed;\r
+ buf_size -= printed;\r
+\r
+ 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);\r
+ buf += printed;\r
+ buf_size -= printed;\r
+\r
+ switch(cfi_info->pri_id)\r
+ {\r
+ case 1:\r
+ case 3:\r
+ cfi_intel_info(bank, buf, buf_size);\r
+ break;\r
+ case 2:\r
+ cfi_spansion_info(bank, buf, buf_size);\r
+ break;\r
+ default:\r
+ ERROR("cfi primary command set %i unsupported", cfi_info->pri_id);\r
+ break;\r
+ }\r
+\r
+ return ERROR_OK;\r
+}\r
projects / fw / openocd / commitdiff