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-rw-r--r--src/flash/nor/ecos.c444
1 files changed, 444 insertions, 0 deletions
diff --git a/src/flash/nor/ecos.c b/src/flash/nor/ecos.c
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+++ b/src/flash/nor/ecos.c
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+/***************************************************************************
+ * Copyright (C) 2007,2008 Øyvind Harboe *
+ * oyvind.harboe@zylin.com *
+ * *
+ * 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 "flash.h"
+#include "embeddedice.h"
+#include "image.h"
+#include "algorithm.h"
+
+
+#if 0
+static uint32_t ecosflash_get_flash_status(struct flash_bank *bank);
+static void ecosflash_set_flash_mode(struct flash_bank *bank,int mode);
+static uint32_t ecosflash_wait_status_busy(struct flash_bank *bank, uint32_t waitbits, int timeout);
+static int ecosflash_handle_gpnvm_command(struct command_context *cmd_ctx, char *cmd, char **args, int argc);
+#endif
+
+struct ecosflash_flash_bank
+{
+ struct target *target;
+ struct working_area *write_algorithm;
+ struct working_area *erase_check_algorithm;
+ char *driverPath;
+ uint32_t start_address;
+};
+
+static const int sectorSize = 0x10000;
+
+char *
+flash_errmsg(int err);
+
+#ifndef __ECOS
+#define FLASH_ERR_OK 0x00 /* No error - operation complete */
+#define FLASH_ERR_INVALID 0x01 /* Invalid FLASH address */
+#define FLASH_ERR_ERASE 0x02 /* Error trying to erase */
+#define FLASH_ERR_LOCK 0x03 /* Error trying to lock/unlock */
+#define FLASH_ERR_PROGRAM 0x04 /* Error trying to program */
+#define FLASH_ERR_PROTOCOL 0x05 /* Generic error */
+#define FLASH_ERR_PROTECT 0x06 /* Device/region is write-protected */
+#define FLASH_ERR_NOT_INIT 0x07 /* FLASH info not yet initialized */
+#define FLASH_ERR_HWR 0x08 /* Hardware (configuration?) problem */
+#define FLASH_ERR_ERASE_SUSPEND 0x09 /* Device is in erase suspend mode */
+#define FLASH_ERR_PROGRAM_SUSPEND 0x0a /* Device is in in program suspend mode */
+#define FLASH_ERR_DRV_VERIFY 0x0b /* Driver failed to verify data */
+#define FLASH_ERR_DRV_TIMEOUT 0x0c /* Driver timed out waiting for device */
+#define FLASH_ERR_DRV_WRONG_PART 0x0d /* Driver does not support device */
+#define FLASH_ERR_LOW_VOLTAGE 0x0e /* Not enough juice to complete job */
+
+char *
+flash_errmsg(int err)
+{
+ switch (err) {
+ case FLASH_ERR_OK:
+ return "No error - operation complete";
+ case FLASH_ERR_ERASE_SUSPEND:
+ return "Device is in erase suspend state";
+ case FLASH_ERR_PROGRAM_SUSPEND:
+ return "Device is in program suspend state";
+ case FLASH_ERR_INVALID:
+ return "Invalid FLASH address";
+ case FLASH_ERR_ERASE:
+ return "Error trying to erase";
+ case FLASH_ERR_LOCK:
+ return "Error trying to lock/unlock";
+ case FLASH_ERR_PROGRAM:
+ return "Error trying to program";
+ case FLASH_ERR_PROTOCOL:
+ return "Generic error";
+ case FLASH_ERR_PROTECT:
+ return "Device/region is write-protected";
+ case FLASH_ERR_NOT_INIT:
+ return "FLASH sub-system not initialized";
+ case FLASH_ERR_DRV_VERIFY:
+ return "Data verify failed after operation";
+ case FLASH_ERR_DRV_TIMEOUT:
+ return "Driver timed out waiting for device";
+ case FLASH_ERR_DRV_WRONG_PART:
+ return "Driver does not support device";
+ case FLASH_ERR_LOW_VOLTAGE:
+ return "Device reports low voltage";
+ default:
+ return "Unknown error";
+ }
+}
+#endif
+
+/* flash bank ecosflash <base> <size> <chip_width> <bus_width> <target#> <driverPath>
+ */
+FLASH_BANK_COMMAND_HANDLER(ecosflash_flash_bank_command)
+{
+ struct ecosflash_flash_bank *info;
+
+ if (CMD_ARGC < 7)
+ {
+ LOG_WARNING("incomplete flash_bank ecosflash configuration");
+ return ERROR_FLASH_BANK_INVALID;
+ }
+
+ info = malloc(sizeof(struct ecosflash_flash_bank));
+ if (info == NULL)
+ {
+ LOG_ERROR("no memory for flash bank info");
+ exit(-1);
+ }
+ bank->driver_priv = info;
+ info->driverPath = strdup(CMD_ARGV[6]);
+
+ /* eCos flash sector sizes are not exposed to OpenOCD, use 0x10000 as
+ * a way to improve impedance match between OpenOCD and eCos flash
+ * driver.
+ */
+ int i = 0;
+ uint32_t offset = 0;
+ bank->num_sectors = bank->size/sectorSize;
+ bank->sectors = malloc(sizeof(struct flash_sector) * bank->num_sectors);
+ for (i = 0; i < bank->num_sectors; i++)
+ {
+ bank->sectors[i].offset = offset;
+ bank->sectors[i].size = sectorSize;
+ offset += bank->sectors[i].size;
+ bank->sectors[i].is_erased = -1;
+ bank->sectors[i].is_protected = 0;
+ }
+
+ info->target = get_target(CMD_ARGV[5]);
+ if (info->target == NULL)
+ {
+ LOG_ERROR("target '%s' not defined", CMD_ARGV[5]);
+ return ERROR_FAIL;
+ }
+ return ERROR_OK;
+}
+
+static int loadDriver(struct ecosflash_flash_bank *info)
+{
+ size_t buf_cnt;
+ size_t image_size;
+ struct image image;
+
+ image.base_address_set = 0;
+ image.start_address_set = 0;
+ struct target *target = info->target;
+ int retval;
+
+ if ((retval = image_open(&image, info->driverPath, NULL)) != ERROR_OK)
+ {
+ return retval;
+ }
+
+ info->start_address = image.start_address;
+
+ image_size = 0x0;
+ int i;
+ for (i = 0; i < image.num_sections; i++)
+ {
+ void *buffer = malloc(image.sections[i].size);
+ int retval;
+ if ((retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt)) != ERROR_OK)
+ {
+ free(buffer);
+ image_close(&image);
+ return retval;
+ }
+ target_write_buffer(target, image.sections[i].base_address, buf_cnt, buffer);
+ image_size += buf_cnt;
+ LOG_DEBUG("%zu bytes written at address 0x%8.8" PRIx32 "",
+ buf_cnt, image.sections[i].base_address);
+
+ free(buffer);
+ }
+
+ image_close(&image);
+
+ return ERROR_OK;
+}
+
+static int const OFFSET_ERASE = 0x0;
+static int const OFFSET_ERASE_SIZE = 0x8;
+static int const OFFSET_FLASH = 0xc;
+static int const OFFSET_FLASH_SIZE = 0x8;
+static int const OFFSET_GET_WORKAREA = 0x18;
+static int const OFFSET_GET_WORKAREA_SIZE = 0x4;
+
+static int runCode(struct ecosflash_flash_bank *info,
+ uint32_t codeStart, uint32_t codeStop, uint32_t r0, uint32_t r1, uint32_t r2,
+ uint32_t *result,
+ /* timeout in ms */
+ int timeout)
+{
+ struct target *target = info->target;
+
+ struct reg_param reg_params[3];
+ struct armv4_5_algorithm armv4_5_info;
+ armv4_5_info.common_magic = ARMV4_5_COMMON_MAGIC;
+ armv4_5_info.core_mode = ARMV4_5_MODE_SVC;
+ armv4_5_info.core_state = ARMV4_5_STATE_ARM;
+
+ init_reg_param(&reg_params[0], "r0", 32, PARAM_IN_OUT);
+ init_reg_param(&reg_params[1], "r1", 32, PARAM_OUT);
+ init_reg_param(&reg_params[2], "r2", 32, PARAM_OUT);
+
+ buf_set_u32(reg_params[0].value, 0, 32, r0);
+ buf_set_u32(reg_params[1].value, 0, 32, r1);
+ buf_set_u32(reg_params[2].value, 0, 32, r2);
+
+ int retval;
+ if ((retval = target_run_algorithm(target, 0, NULL, 3, reg_params,
+ codeStart,
+ codeStop, timeout,
+ &armv4_5_info)) != ERROR_OK)
+ {
+ LOG_ERROR("error executing eCos flash algorithm");
+ return retval;
+ }
+
+ *result = buf_get_u32(reg_params[0].value, 0, 32);
+
+ destroy_reg_param(&reg_params[0]);
+ destroy_reg_param(&reg_params[1]);
+ destroy_reg_param(&reg_params[2]);
+
+ return ERROR_OK;
+}
+
+static int eCosBoard_erase(struct ecosflash_flash_bank *info, uint32_t address, uint32_t len)
+{
+ int retval;
+ int timeout = (len / 20480 + 1) * 1000; /*asume 20 KB/s*/
+
+ retval = loadDriver(info);
+ if (retval != ERROR_OK)
+ return retval;
+
+ uint32_t flashErr;
+ retval = runCode(info,
+ info->start_address + OFFSET_ERASE,
+ info->start_address + OFFSET_ERASE + OFFSET_ERASE_SIZE,
+ address,
+ len,
+ 0,
+ &flashErr,
+ timeout
+);
+ if (retval != ERROR_OK)
+ return retval;
+
+ if (flashErr != 0x0)
+ {
+ LOG_ERROR("Flash erase failed with %d (%s)\n", (int)flashErr, flash_errmsg(flashErr));
+ return ERROR_FAIL;
+ }
+
+ return ERROR_OK;
+}
+
+static int eCosBoard_flash(struct ecosflash_flash_bank *info, void *data, uint32_t address, uint32_t len)
+{
+ struct target *target = info->target;
+ const int chunk = 8192;
+ int retval = ERROR_OK;
+ int timeout = (chunk / 20480 + 1) * 1000; /*asume 20 KB/s + 1 second*/
+
+ retval = loadDriver(info);
+ if (retval != ERROR_OK)
+ return retval;
+
+ uint32_t buffer;
+ retval = runCode(info,
+ info->start_address + OFFSET_GET_WORKAREA,
+ info->start_address + OFFSET_GET_WORKAREA + OFFSET_GET_WORKAREA_SIZE,
+ 0,
+ 0,
+ 0,
+ &buffer,
+ 1000);
+ if (retval != ERROR_OK)
+ return retval;
+
+
+ uint32_t i;
+ for (i = 0; i < len; i += chunk)
+ {
+ int t = len-i;
+ if (t > chunk)
+ {
+ t = chunk;
+ }
+
+ int retval;
+ retval = target_write_buffer(target, buffer, t, ((uint8_t *)data) + i);
+ if (retval != ERROR_OK)
+ return retval;
+
+ uint32_t flashErr;
+ retval = runCode(info,
+ info->start_address + OFFSET_FLASH,
+ info->start_address + OFFSET_FLASH + OFFSET_FLASH_SIZE,
+ buffer,
+ address + i,
+ t,
+ &flashErr,
+ timeout);
+ if (retval != ERROR_OK)
+ return retval;
+
+ if (flashErr != 0x0)
+ {
+ LOG_ERROR("Flash prog failed with %d (%s)\n", (int)flashErr, flash_errmsg(flashErr));
+ return ERROR_FAIL;
+ }
+ }
+ return ERROR_OK;
+}
+
+static int ecosflash_probe(struct flash_bank *bank)
+{
+ return ERROR_OK;
+}
+
+#if 0
+static void command(struct flash_bank *bank, uint8_t cmd, uint8_t *cmd_buf)
+{
+ struct ecosflash_flash_bank *info = bank->driver_priv;
+ int i;
+
+ if (info->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;
+ }
+ }
+}
+#endif
+
+#if 0
+static uint32_t ecosflash_address(struct flash_bank *bank, uint32_t address)
+{
+ uint32_t retval = 0;
+ switch (bank->bus_width)
+ {
+ case 4:
+ retval = address & 0xfffffffc;
+ case 2:
+ retval = address & 0xfffffffe;
+ case 1:
+ retval = address;
+ }
+
+ return retval + bank->base;
+}
+#endif
+
+static int ecosflash_erase(struct flash_bank *bank, int first, int last)
+{
+ struct flash_bank *c = bank;
+ struct ecosflash_flash_bank *info = bank->driver_priv;
+ return eCosBoard_erase(info, c->base + first*sectorSize, sectorSize*(last-first + 1));
+}
+
+static int ecosflash_protect(struct flash_bank *bank, int set, int first, int last)
+{
+ return ERROR_OK;
+}
+
+static int ecosflash_write(struct flash_bank *bank, uint8_t *buffer, uint32_t offset, uint32_t count)
+{
+ struct ecosflash_flash_bank *info = bank->driver_priv;
+ struct flash_bank *c = bank;
+ return eCosBoard_flash(info, buffer, c->base + offset, count);
+}
+
+static int ecosflash_protect_check(struct flash_bank *bank)
+{
+ return ERROR_OK;
+}
+
+static int ecosflash_info(struct flash_bank *bank, char *buf, int buf_size)
+{
+ struct ecosflash_flash_bank *info = bank->driver_priv;
+ snprintf(buf, buf_size, "eCos flash driver: %s", info->driverPath);
+ return ERROR_OK;
+}
+
+#if 0
+static uint32_t ecosflash_get_flash_status(struct flash_bank *bank)
+{
+ return ERROR_OK;
+}
+
+static void ecosflash_set_flash_mode(struct flash_bank *bank,int mode)
+{
+
+}
+
+static uint32_t ecosflash_wait_status_busy(struct flash_bank *bank, uint32_t waitbits, int timeout)
+{
+ return ERROR_OK;
+}
+
+static int ecosflash_handle_gpnvm_command(struct command_context *cmd_ctx, char *cmd, char **args, int argc)
+{
+ return ERROR_OK;
+}
+#endif
+
+struct flash_driver ecosflash_flash = {
+ .name = "ecosflash",
+ .flash_bank_command = &ecosflash_flash_bank_command,
+ .erase = &ecosflash_erase,
+ .protect = &ecosflash_protect,
+ .write = &ecosflash_write,
+ .probe = &ecosflash_probe,
+ .auto_probe = &ecosflash_probe,
+ .erase_check = &default_flash_blank_check,
+ .protect_check = &ecosflash_protect_check,
+ .info = &ecosflash_info
+ };
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