461 lines
13 KiB
C
461 lines
13 KiB
C
/***************************************************************************
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* Copyright (C) 2007,2008 Øyvind Harboe *
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* oyvind.harboe@zylin.com *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
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***************************************************************************/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "flash.h"
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#include "embeddedice.h"
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#include "image.h"
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static int ecosflash_register_commands(struct command_context_s *cmd_ctx);
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static int ecosflash_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct flash_bank_s *bank);
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static int ecosflash_erase(struct flash_bank_s *bank, int first, int last);
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static int ecosflash_protect(struct flash_bank_s *bank, int set, int first, int last);
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static int ecosflash_write(struct flash_bank_s *bank, uint8_t *buffer, uint32_t offset, uint32_t count);
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static int ecosflash_probe(struct flash_bank_s *bank);
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static int ecosflash_protect_check(struct flash_bank_s *bank);
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static int ecosflash_info(struct flash_bank_s *bank, char *buf, int buf_size);
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#if 0
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static uint32_t ecosflash_get_flash_status(flash_bank_t *bank);
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static void ecosflash_set_flash_mode(flash_bank_t *bank,int mode);
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static uint32_t ecosflash_wait_status_busy(flash_bank_t *bank, uint32_t waitbits, int timeout);
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static int ecosflash_handle_gpnvm_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
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#endif
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flash_driver_t ecosflash_flash =
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{
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.name = "ecosflash",
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.register_commands = ecosflash_register_commands,
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.flash_bank_command = ecosflash_flash_bank_command,
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.erase = ecosflash_erase,
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.protect = ecosflash_protect,
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.write = ecosflash_write,
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.probe = ecosflash_probe,
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.auto_probe = ecosflash_probe,
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.erase_check = default_flash_blank_check,
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.protect_check = ecosflash_protect_check,
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.info = ecosflash_info
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};
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typedef struct ecosflash_flash_bank_s
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{
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struct target_s *target;
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working_area_t *write_algorithm;
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working_area_t *erase_check_algorithm;
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char *driverPath;
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uint32_t start_address;
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} ecosflash_flash_bank_t;
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static const int sectorSize = 0x10000;
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char *
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flash_errmsg(int err);
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#ifndef __ECOS
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#define FLASH_ERR_OK 0x00 /* No error - operation complete */
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#define FLASH_ERR_INVALID 0x01 /* Invalid FLASH address */
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#define FLASH_ERR_ERASE 0x02 /* Error trying to erase */
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#define FLASH_ERR_LOCK 0x03 /* Error trying to lock/unlock */
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#define FLASH_ERR_PROGRAM 0x04 /* Error trying to program */
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#define FLASH_ERR_PROTOCOL 0x05 /* Generic error */
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#define FLASH_ERR_PROTECT 0x06 /* Device/region is write-protected */
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#define FLASH_ERR_NOT_INIT 0x07 /* FLASH info not yet initialized */
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#define FLASH_ERR_HWR 0x08 /* Hardware (configuration?) problem */
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#define FLASH_ERR_ERASE_SUSPEND 0x09 /* Device is in erase suspend mode */
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#define FLASH_ERR_PROGRAM_SUSPEND 0x0a /* Device is in in program suspend mode */
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#define FLASH_ERR_DRV_VERIFY 0x0b /* Driver failed to verify data */
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#define FLASH_ERR_DRV_TIMEOUT 0x0c /* Driver timed out waiting for device */
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#define FLASH_ERR_DRV_WRONG_PART 0x0d /* Driver does not support device */
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#define FLASH_ERR_LOW_VOLTAGE 0x0e /* Not enough juice to complete job */
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char *
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flash_errmsg(int err)
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{
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switch (err) {
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case FLASH_ERR_OK:
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return "No error - operation complete";
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case FLASH_ERR_ERASE_SUSPEND:
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return "Device is in erase suspend state";
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case FLASH_ERR_PROGRAM_SUSPEND:
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return "Device is in program suspend state";
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case FLASH_ERR_INVALID:
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return "Invalid FLASH address";
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case FLASH_ERR_ERASE:
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return "Error trying to erase";
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case FLASH_ERR_LOCK:
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return "Error trying to lock/unlock";
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case FLASH_ERR_PROGRAM:
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return "Error trying to program";
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case FLASH_ERR_PROTOCOL:
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return "Generic error";
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case FLASH_ERR_PROTECT:
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return "Device/region is write-protected";
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case FLASH_ERR_NOT_INIT:
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return "FLASH sub-system not initialized";
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case FLASH_ERR_DRV_VERIFY:
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return "Data verify failed after operation";
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case FLASH_ERR_DRV_TIMEOUT:
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return "Driver timed out waiting for device";
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case FLASH_ERR_DRV_WRONG_PART:
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return "Driver does not support device";
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case FLASH_ERR_LOW_VOLTAGE:
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return "Device reports low voltage";
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default:
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return "Unknown error";
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}
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}
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#endif
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/* flash bank ecosflash <base> <size> <chip_width> <bus_width> <target#> <driverPath>
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*/
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static int ecosflash_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct flash_bank_s *bank)
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{
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ecosflash_flash_bank_t *info;
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if (argc < 7)
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{
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LOG_WARNING("incomplete flash_bank ecosflash configuration");
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return ERROR_FLASH_BANK_INVALID;
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}
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info = malloc(sizeof(ecosflash_flash_bank_t));
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if (info == NULL)
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{
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LOG_ERROR("no memory for flash bank info");
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exit(-1);
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}
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bank->driver_priv = info;
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info->driverPath = strdup(args[6]);
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/* eCos flash sector sizes are not exposed to OpenOCD, use 0x10000 as
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* a way to improve impeadance matach between OpenOCD and eCos flash
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* driver.
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*/
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int i = 0;
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uint32_t offset = 0;
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bank->num_sectors = bank->size/sectorSize;
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bank->sectors = malloc(sizeof(flash_sector_t) * bank->num_sectors);
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for (i = 0; i < bank->num_sectors; i++)
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{
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bank->sectors[i].offset = offset;
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bank->sectors[i].size = sectorSize;
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offset += bank->sectors[i].size;
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bank->sectors[i].is_erased = -1;
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bank->sectors[i].is_protected = 0;
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}
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info->target = get_target(args[5]);
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if (info->target == NULL)
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{
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LOG_ERROR("target '%s' not defined", args[5]);
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return ERROR_FAIL;
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}
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return ERROR_OK;
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}
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static int loadDriver(ecosflash_flash_bank_t *info)
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{
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uint32_t buf_cnt;
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uint32_t image_size;
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image_t image;
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image.base_address_set = 0;
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image.start_address_set = 0;
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target_t *target = info->target;
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int retval;
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if ((retval = image_open(&image, info->driverPath, NULL)) != ERROR_OK)
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{
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return retval;
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}
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info->start_address = image.start_address;
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image_size = 0x0;
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int i;
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for (i = 0; i < image.num_sections; i++)
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{
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void *buffer = malloc(image.sections[i].size);
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int retval;
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if ((retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt)) != ERROR_OK)
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{
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free(buffer);
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image_close(&image);
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return retval;
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}
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target_write_buffer(target, image.sections[i].base_address, buf_cnt, buffer);
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image_size += buf_cnt;
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LOG_DEBUG("%" PRIu32 " byte written at address 0x%8.8" PRIx32 "", buf_cnt, image.sections[i].base_address);
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free(buffer);
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}
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image_close(&image);
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return ERROR_OK;
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}
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static int const OFFSET_ERASE = 0x0;
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static int const OFFSET_ERASE_SIZE = 0x8;
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static int const OFFSET_FLASH = 0xc;
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static int const OFFSET_FLASH_SIZE = 0x8;
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static int const OFFSET_GET_WORKAREA = 0x18;
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static int const OFFSET_GET_WORKAREA_SIZE = 0x4;
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static int runCode(ecosflash_flash_bank_t *info,
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uint32_t codeStart, uint32_t codeStop, uint32_t r0, uint32_t r1, uint32_t r2,
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uint32_t *result,
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/* timeout in ms */
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int timeout)
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{
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target_t *target = info->target;
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reg_param_t reg_params[3];
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armv4_5_algorithm_t armv4_5_info;
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armv4_5_info.common_magic = ARMV4_5_COMMON_MAGIC;
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armv4_5_info.core_mode = ARMV4_5_MODE_SVC;
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armv4_5_info.core_state = ARMV4_5_STATE_ARM;
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init_reg_param(®_params[0], "r0", 32, PARAM_IN_OUT);
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init_reg_param(®_params[1], "r1", 32, PARAM_OUT);
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init_reg_param(®_params[2], "r2", 32, PARAM_OUT);
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buf_set_u32(reg_params[0].value, 0, 32, r0);
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buf_set_u32(reg_params[1].value, 0, 32, r1);
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buf_set_u32(reg_params[2].value, 0, 32, r2);
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int retval;
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if ((retval = target_run_algorithm(target, 0, NULL, 3, reg_params,
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codeStart,
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codeStop, timeout,
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&armv4_5_info)) != ERROR_OK)
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{
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LOG_ERROR("error executing eCos flash algorithm");
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return retval;
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}
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*result = buf_get_u32(reg_params[0].value, 0, 32);
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destroy_reg_param(®_params[0]);
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destroy_reg_param(®_params[1]);
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destroy_reg_param(®_params[2]);
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return ERROR_OK;
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}
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static int eCosBoard_erase(ecosflash_flash_bank_t *info, uint32_t address, uint32_t len)
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{
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int retval;
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int timeout = (len / 20480 + 1) * 1000; /*asume 20 KB/s*/
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retval = loadDriver(info);
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if (retval != ERROR_OK)
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return retval;
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uint32_t flashErr;
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retval = runCode(info,
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info->start_address + OFFSET_ERASE,
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info->start_address + OFFSET_ERASE + OFFSET_ERASE_SIZE,
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address,
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len,
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0,
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&flashErr,
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timeout
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);
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if (retval != ERROR_OK)
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return retval;
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if (flashErr != 0x0)
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{
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LOG_ERROR("Flash erase failed with %d (%s)\n", (int)flashErr, flash_errmsg(flashErr));
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return ERROR_FAIL;
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}
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return ERROR_OK;
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}
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static int eCosBoard_flash(ecosflash_flash_bank_t *info, void *data, uint32_t address, uint32_t len)
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{
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target_t *target = info->target;
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const int chunk = 8192;
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int retval = ERROR_OK;
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int timeout = (chunk / 20480 + 1) * 1000; /*asume 20 KB/s + 1 second*/
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retval = loadDriver(info);
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if (retval != ERROR_OK)
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return retval;
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uint32_t buffer;
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retval = runCode(info,
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info->start_address + OFFSET_GET_WORKAREA,
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info->start_address + OFFSET_GET_WORKAREA + OFFSET_GET_WORKAREA_SIZE,
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0,
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0,
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0,
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&buffer,
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1000);
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if (retval != ERROR_OK)
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return retval;
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uint32_t i;
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for (i = 0; i < len; i += chunk)
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{
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int t = len-i;
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if (t > chunk)
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{
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t = chunk;
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}
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int retval;
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retval = target_write_buffer(target, buffer, t, ((uint8_t *)data) + i);
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if (retval != ERROR_OK)
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return retval;
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uint32_t flashErr;
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retval = runCode(info,
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info->start_address + OFFSET_FLASH,
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info->start_address + OFFSET_FLASH + OFFSET_FLASH_SIZE,
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buffer,
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address + i,
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t,
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&flashErr,
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timeout);
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if (retval != ERROR_OK)
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return retval;
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if (flashErr != 0x0)
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{
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LOG_ERROR("Flash prog failed with %d (%s)\n", (int)flashErr, flash_errmsg(flashErr));
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return ERROR_FAIL;
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}
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}
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return ERROR_OK;
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}
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static int ecosflash_probe(struct flash_bank_s *bank)
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{
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return ERROR_OK;
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}
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static int ecosflash_register_commands(struct command_context_s *cmd_ctx)
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{
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register_command(cmd_ctx, NULL, "ecosflash", NULL, COMMAND_ANY, NULL);
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return ERROR_OK;
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}
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#if 0
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static void command(flash_bank_t *bank, uint8_t cmd, uint8_t *cmd_buf)
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{
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ecosflash_flash_bank_t *info = bank->driver_priv;
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int i;
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if (info->target->endianness == TARGET_LITTLE_ENDIAN)
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{
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for (i = bank->bus_width; i > 0; i--)
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{
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*cmd_buf++ = (i & (bank->chip_width - 1)) ? 0x0 : cmd;
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}
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}
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else
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{
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for (i = 1; i <= bank->bus_width; i++)
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{
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*cmd_buf++ = (i & (bank->chip_width - 1)) ? 0x0 : cmd;
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}
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}
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}
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#endif
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#if 0
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static uint32_t ecosflash_address(struct flash_bank_s *bank, uint32_t address)
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{
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uint32_t retval = 0;
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switch (bank->bus_width)
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{
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case 4:
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retval = address & 0xfffffffc;
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case 2:
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retval = address & 0xfffffffe;
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case 1:
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retval = address;
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}
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return retval + bank->base;
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}
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#endif
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static int ecosflash_erase(struct flash_bank_s *bank, int first, int last)
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{
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struct flash_bank_s *c = bank;
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ecosflash_flash_bank_t *info = bank->driver_priv;
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return eCosBoard_erase(info, c->base + first*sectorSize, sectorSize*(last-first + 1));
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}
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static int ecosflash_protect(struct flash_bank_s *bank, int set, int first, int last)
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{
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return ERROR_OK;
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}
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static int ecosflash_write(struct flash_bank_s *bank, uint8_t *buffer, uint32_t offset, uint32_t count)
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{
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ecosflash_flash_bank_t *info = bank->driver_priv;
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struct flash_bank_s *c = bank;
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return eCosBoard_flash(info, buffer, c->base + offset, count);
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}
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static int ecosflash_protect_check(struct flash_bank_s *bank)
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{
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return ERROR_OK;
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}
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static int ecosflash_info(struct flash_bank_s *bank, char *buf, int buf_size)
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{
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ecosflash_flash_bank_t *info = bank->driver_priv;
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snprintf(buf, buf_size, "eCos flash driver: %s", info->driverPath);
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return ERROR_OK;
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}
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#if 0
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static uint32_t ecosflash_get_flash_status(flash_bank_t *bank)
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{
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return ERROR_OK;
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}
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static void ecosflash_set_flash_mode(flash_bank_t *bank,int mode)
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{
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}
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static uint32_t ecosflash_wait_status_busy(flash_bank_t *bank, uint32_t waitbits, int timeout)
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{
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return ERROR_OK;
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}
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static int ecosflash_handle_gpnvm_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
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{
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return ERROR_OK;
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}
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#endif
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