--- /dev/null
+/***************************************************************************\r
+ * Copyright (C) 2005 by Dominic Rath *\r
+ * Dominic.Rath@gmx.de *\r
+ * *\r
+ * Copyright (C) 2008 by Spencer Oliver *\r
+ * spen@spen-soft.co.uk *\r
+ * *\r
+ * Copyright (C) 2008 by John McCarthy *\r
+ * jgmcc@magma.ca *\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 "pic32mx.h"\r
+#include "flash.h"\r
+#include "target.h"\r
+#include "log.h"\r
+#include "mips32.h"\r
+#include "algorithm.h"\r
+#include "binarybuffer.h"\r
+\r
+#include <stdlib.h>\r
+#include <string.h>\r
+\r
+static\r
+struct pic32mx_devs_s {\r
+ u8 devid;\r
+ char *name;\r
+ u32 pfm_size;\r
+} pic32mx_devs[] = {\r
+ { 0x78, "460F512L USB", 512 },\r
+ { 0x74, "460F256L USB", 256 },\r
+ { 0x6D, "440F128L USB", 128 },\r
+ { 0x56, "440F512H USB", 512 },\r
+ { 0x52, "440F256H USB", 256 },\r
+ { 0x4D, "440F128H USB", 128 },\r
+ { 0x42, "420F032H USB", 32 },\r
+ { 0x38, "360F512L", 512 },\r
+ { 0x34, "360F256L", 256 },\r
+ { 0x2D, "340F128L", 128 },\r
+ { 0x2A, "320F128L", 128 },\r
+ { 0x16, "340F512H", 512 },\r
+ { 0x12, "340F256H", 256 },\r
+ { 0x0D, "340F128H", 128 },\r
+ { 0x0A, "320F128H", 128 },\r
+ { 0x06, "320F064H", 64 },\r
+ { 0x02, "320F032H", 32 },\r
+ { 0x00, NULL, 0 }\r
+};\r
+\r
+int pic32mx_register_commands(struct command_context_s *cmd_ctx);\r
+int pic32mx_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct flash_bank_s *bank);\r
+int pic32mx_erase(struct flash_bank_s *bank, int first, int last);\r
+int pic32mx_protect(struct flash_bank_s *bank, int set, int first, int last);\r
+int pic32mx_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count);\r
+int pic32mx_probe(struct flash_bank_s *bank);\r
+int pic32mx_auto_probe(struct flash_bank_s *bank);\r
+int pic32mx_handle_part_id_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);\r
+int pic32mx_protect_check(struct flash_bank_s *bank);\r
+int pic32mx_info(struct flash_bank_s *bank, char *buf, int buf_size);\r
+\r
+#if 0\r
+int pic32mx_handle_lock_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);\r
+int pic32mx_handle_unlock_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);\r
+#endif\r
+int pic32mx_handle_chip_erase_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);\r
+int pic32mx_handle_pgm_word_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);\r
+int pic32mx_chip_erase(struct flash_bank_s *bank);\r
+\r
+flash_driver_t pic32mx_flash =\r
+{\r
+ .name = "pic32mx",\r
+ .register_commands = pic32mx_register_commands,\r
+ .flash_bank_command = pic32mx_flash_bank_command,\r
+ .erase = pic32mx_erase,\r
+ .protect = pic32mx_protect,\r
+ .write = pic32mx_write,\r
+ .probe = pic32mx_probe,\r
+ .auto_probe = pic32mx_auto_probe,\r
+ .erase_check = default_flash_mem_blank_check,\r
+ .protect_check = pic32mx_protect_check,\r
+ .info = pic32mx_info\r
+};\r
+\r
+int pic32mx_register_commands(struct command_context_s *cmd_ctx)\r
+{\r
+ command_t *pic32mx_cmd = register_command(cmd_ctx, NULL, "pic32mx", NULL, COMMAND_ANY, "pic32mx flash specific commands");\r
+\r
+#if 0\r
+ register_command(cmd_ctx, pic32mx_cmd, "lock", pic32mx_handle_lock_command, COMMAND_EXEC,\r
+ "lock device");\r
+ register_command(cmd_ctx, pic32mx_cmd, "unlock", pic32mx_handle_unlock_command, COMMAND_EXEC,\r
+ "unlock protected device");\r
+#endif\r
+ register_command(cmd_ctx, pic32mx_cmd, "chip_erase", pic32mx_handle_chip_erase_command, COMMAND_EXEC,\r
+ "erase device");\r
+ register_command(cmd_ctx, pic32mx_cmd, "pgm_word", pic32mx_handle_pgm_word_command, COMMAND_EXEC,\r
+ "program a word");\r
+ return ERROR_OK;\r
+}\r
+\r
+/* flash bank pic32mx <base> <size> 0 0 <target#>\r
+ */\r
+int pic32mx_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct flash_bank_s *bank)\r
+{\r
+ pic32mx_flash_bank_t *pic32mx_info;\r
+\r
+ if (argc < 6)\r
+ {\r
+ LOG_WARNING("incomplete flash_bank pic32mx configuration");\r
+ return ERROR_FLASH_BANK_INVALID;\r
+ }\r
+\r
+ pic32mx_info = malloc(sizeof(pic32mx_flash_bank_t));\r
+ bank->driver_priv = pic32mx_info;\r
+\r
+ pic32mx_info->write_algorithm = NULL;\r
+ pic32mx_info->probed = 0;\r
+\r
+ return ERROR_OK;\r
+}\r
+\r
+u32 pic32mx_get_flash_status(flash_bank_t *bank)\r
+{\r
+ target_t *target = bank->target;\r
+ u32 status;\r
+\r
+ target_read_u32(target, PIC32MX_NVMCON, &status);\r
+\r
+ return status;\r
+}\r
+\r
+u32 pic32mx_wait_status_busy(flash_bank_t *bank, int timeout)\r
+{\r
+ u32 status;\r
+\r
+ /* wait for busy to clear */\r
+ while (((status = pic32mx_get_flash_status(bank)) & NVMCON_NVMWR) && (timeout-- > 0))\r
+ {\r
+ LOG_DEBUG("status: 0x%x", status);\r
+ alive_sleep(1);\r
+ }\r
+ if(timeout <= 0)\r
+ LOG_DEBUG("timeout: status: 0x%x", status);\r
+\r
+ return status;\r
+}\r
+\r
+int pic32mx_nvm_exec(struct flash_bank_s *bank, u32 op, u32 timeout)\r
+{\r
+ target_t *target = bank->target;\r
+ u32 status;\r
+\r
+ target_write_u32(target, PIC32MX_NVMCON, NVMCON_NVMWREN|op);\r
+\r
+ /* unlock flash registers */\r
+ target_write_u32(target, PIC32MX_NVMKEY, NVMKEY1);\r
+ target_write_u32(target, PIC32MX_NVMKEY, NVMKEY2);\r
+\r
+ /* start operation */\r
+ target_write_u32(target, PIC32MX_NVMCONSET, NVMCON_NVMWR);\r
+\r
+ status = pic32mx_wait_status_busy(bank, timeout);\r
+\r
+ /* lock flash registers */\r
+ target_write_u32(target, PIC32MX_NVMCONCLR, NVMCON_NVMWREN);\r
+\r
+ return status;\r
+}\r
+\r
+int pic32mx_protect_check(struct flash_bank_s *bank)\r
+{\r
+ target_t *target = bank->target;\r
+ pic32mx_flash_bank_t *pic32mx_info = bank->driver_priv;\r
+\r
+ u32 devcfg0;\r
+ int s;\r
+ int num_pages;\r
+\r
+ if (target->state != TARGET_HALTED)\r
+ {\r
+ LOG_ERROR("Target not halted");\r
+ return ERROR_TARGET_NOT_HALTED;\r
+ }\r
+\r
+ target_read_u32(target, PIC32MX_DEVCFG0, &devcfg0);\r
+ if((devcfg0 & (1<<28)) == 0) /* code protect bit */\r
+ num_pages = 0xffff; /* All pages protected */\r
+ else if(bank->base == PIC32MX_KSEG1_BOOT_FLASH)\r
+ {\r
+ if(devcfg0 & (1<<24))\r
+ num_pages = 0; /* All pages unprotected */\r
+ else\r
+ num_pages = 0xffff; /* All pages protected */\r
+ }\r
+ else /* pgm flash */\r
+ num_pages = (~devcfg0 >> 12) & 0xff;\r
+ for (s = 0; s < bank->num_sectors && s < num_pages; s++)\r
+ bank->sectors[s].is_protected = 1;\r
+ for (; s < bank->num_sectors; s++)\r
+ bank->sectors[s].is_protected = 0;\r
+\r
+ return ERROR_OK;\r
+}\r
+\r
+int pic32mx_erase(struct flash_bank_s *bank, int first, int last)\r
+{\r
+ target_t *target = bank->target;\r
+ int i;\r
+ u32 status;\r
+\r
+ if (bank->target->state != TARGET_HALTED)\r
+ {\r
+ LOG_ERROR("Target not halted");\r
+ return ERROR_TARGET_NOT_HALTED;\r
+ }\r
+\r
+#if 0\r
+ if ((first == 0) && (last == (bank->num_sectors - 1)) && (bank->base == PIC32MX_KSEG0_PGM_FLASH || bank->base == PIC32MX_KSEG1_PGM_FLASH))\r
+ {\r
+ status = pic32mx_nvm_exec(bank, NVMCON_OP_PFM_ERASE, 50);\r
+ if( status & NVMCON_NVMERR )\r
+ return ERROR_FLASH_OPERATION_FAILED;\r
+ if( status & NVMCON_LVDERR )\r
+ return ERROR_FLASH_OPERATION_FAILED;\r
+ return ERROR_OK;\r
+ }\r
+#endif\r
+\r
+ for (i = first; i <= last; i++)\r
+ {\r
+ target_write_u32(target, PIC32MX_NVMADDR, bank->base + bank->sectors[i].offset);\r
+\r
+ status = pic32mx_nvm_exec(bank, NVMCON_OP_PAGE_ERASE, 10);\r
+\r
+ if( status & NVMCON_NVMERR )\r
+ return ERROR_FLASH_OPERATION_FAILED;\r
+ if( status & NVMCON_LVDERR )\r
+ return ERROR_FLASH_OPERATION_FAILED;\r
+ bank->sectors[i].is_erased = 1;\r
+ }\r
+\r
+ return ERROR_OK;\r
+}\r
+\r
+int pic32mx_protect(struct flash_bank_s *bank, int set, int first, int last)\r
+{\r
+ pic32mx_flash_bank_t *pic32mx_info = NULL;\r
+ target_t *target = bank->target;\r
+ u16 prot_reg[4] = {0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF};\r
+ int i, reg, bit;\r
+ int status;\r
+ u32 protection;\r
+\r
+ pic32mx_info = bank->driver_priv;\r
+\r
+ if (target->state != TARGET_HALTED)\r
+ {\r
+ LOG_ERROR("Target not halted");\r
+ return ERROR_TARGET_NOT_HALTED;\r
+ }\r
+\r
+#if 0\r
+ if ((first && (first % pic32mx_info->ppage_size)) || ((last + 1) && (last + 1) % pic32mx_info->ppage_size))\r
+ {\r
+ LOG_WARNING("sector start/end incorrect - stm32 has %dK sector protection", pic32mx_info->ppage_size);\r
+ return ERROR_FLASH_SECTOR_INVALID;\r
+ }\r
+\r
+ /* medium density - each bit refers to a 4bank protection\r
+ * high density - each bit refers to a 2bank protection */\r
+ target_read_u32(target, PIC32MX_FLASH_WRPR, &protection);\r
+\r
+ prot_reg[0] = (u16)protection;\r
+ prot_reg[1] = (u16)(protection >> 8);\r
+ prot_reg[2] = (u16)(protection >> 16);\r
+ prot_reg[3] = (u16)(protection >> 24);\r
+\r
+ if (pic32mx_info->ppage_size == 2)\r
+ {\r
+ /* high density flash */\r
+\r
+ /* bit 7 controls sector 62 - 255 protection */\r
+ if (last > 61)\r
+ {\r
+ if (set)\r
+ prot_reg[3] &= ~(1 << 7);\r
+ else\r
+ prot_reg[3] |= (1 << 7);\r
+ }\r
+\r
+ if (first > 61)\r
+ first = 62;\r
+ if (last > 61)\r
+ last = 61;\r
+\r
+ for (i = first; i <= last; i++)\r
+ {\r
+ reg = (i / pic32mx_info->ppage_size) / 8;\r
+ bit = (i / pic32mx_info->ppage_size) - (reg * 8);\r
+\r
+ if( set )\r
+ prot_reg[reg] &= ~(1 << bit);\r
+ else\r
+ prot_reg[reg] |= (1 << bit);\r
+ }\r
+ }\r
+ else\r
+ {\r
+ /* medium density flash */\r
+ for (i = first; i <= last; i++)\r
+ {\r
+ reg = (i / pic32mx_info->ppage_size) / 8;\r
+ bit = (i / pic32mx_info->ppage_size) - (reg * 8);\r
+\r
+ if( set )\r
+ prot_reg[reg] &= ~(1 << bit);\r
+ else\r
+ prot_reg[reg] |= (1 << bit);\r
+ }\r
+ }\r
+\r
+ if ((status = pic32mx_erase_options(bank)) != ERROR_OK)\r
+ return status;\r
+\r
+ pic32mx_info->option_bytes.protection[0] = prot_reg[0];\r
+ pic32mx_info->option_bytes.protection[1] = prot_reg[1];\r
+ pic32mx_info->option_bytes.protection[2] = prot_reg[2];\r
+ pic32mx_info->option_bytes.protection[3] = prot_reg[3];\r
+\r
+ return pic32mx_write_options(bank);\r
+#else\r
+ return ERROR_OK;\r
+#endif\r
+}\r
+\r
+int pic32mx_write_block(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count)\r
+{\r
+ pic32mx_flash_bank_t *pic32mx_info = bank->driver_priv;\r
+ target_t *target = bank->target;\r
+ u32 buffer_size = 8192;\r
+ working_area_t *source;\r
+ u32 address = bank->base + offset;\r
+ reg_param_t reg_params[4];\r
+#if 0\r
+ armv7m_algorithm_t armv7m_info;\r
+ int retval = ERROR_OK;\r
+\r
+ u8 pic32mx_flash_write_code[] = {\r
+ /* write: */\r
+ 0xDF, 0xF8, 0x24, 0x40, /* ldr r4, PIC32MX_FLASH_CR */\r
+ 0x09, 0x4D, /* ldr r5, PIC32MX_FLASH_SR */\r
+ 0x4F, 0xF0, 0x01, 0x03, /* mov r3, #1 */\r
+ 0x23, 0x60, /* str r3, [r4, #0] */\r
+ 0x30, 0xF8, 0x02, 0x3B, /* ldrh r3, [r0], #2 */\r
+ 0x21, 0xF8, 0x02, 0x3B, /* strh r3, [r1], #2 */\r
+ /* busy: */\r
+ 0x2B, 0x68, /* ldr r3, [r5, #0] */\r
+ 0x13, 0xF0, 0x01, 0x0F, /* tst r3, #0x01 */\r
+ 0xFB, 0xD0, /* beq busy */\r
+ 0x13, 0xF0, 0x14, 0x0F, /* tst r3, #0x14 */\r
+ 0x01, 0xD1, /* bne exit */\r
+ 0x01, 0x3A, /* subs r2, r2, #1 */\r
+ 0xED, 0xD1, /* bne write */\r
+ /* exit: */\r
+ 0xFE, 0xE7, /* b exit */\r
+ 0x10, 0x20, 0x02, 0x40, /* PIC32MX_FLASH_CR: .word 0x40022010 */\r
+ 0x0C, 0x20, 0x02, 0x40 /* PIC32MX_FLASH_SR: .word 0x4002200C */\r
+ };\r
+\r
+ /* flash write code */\r
+ if (target_alloc_working_area(target, sizeof(pic32mx_flash_write_code), &pic32mx_info->write_algorithm) != ERROR_OK)\r
+ {\r
+ LOG_WARNING("no working area available, can't do block memory writes");\r
+ return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;\r
+ };\r
+\r
+ if ((retval=target_write_buffer(target, pic32mx_info->write_algorithm->address, sizeof(pic32mx_flash_write_code), pic32mx_flash_write_code))!=ERROR_OK)\r
+ return retval;\r
+\r
+ /* memory buffer */\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 (pic32mx_info->write_algorithm)\r
+ target_free_working_area(target, pic32mx_info->write_algorithm);\r
+\r
+ LOG_WARNING("no large enough working area available, can't do block memory writes");\r
+ return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;\r
+ }\r
+ };\r
+\r
+ armv7m_info.common_magic = ARMV7M_COMMON_MAGIC;\r
+ armv7m_info.core_mode = ARMV7M_MODE_ANY;\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_IN);\r
+\r
+ while (count > 0)\r
+ {\r
+ u32 thisrun_count = (count > (buffer_size / 2)) ? (buffer_size / 2) : count;\r
+\r
+ if ((retval = target_write_buffer(target, source->address, thisrun_count * 2, buffer))!=ERROR_OK)\r
+ break;\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);\r
+\r
+ if ((retval = target->type->run_algorithm(target, 0, NULL, 4, reg_params, pic32mx_info->write_algorithm->address, \\r
+ pic32mx_info->write_algorithm->address + (sizeof(pic32mx_flash_write_code) - 10), 10000, &armv7m_info)) != ERROR_OK)\r
+ {\r
+ LOG_ERROR("error executing pic32mx flash write algorithm");\r
+ retval = ERROR_FLASH_OPERATION_FAILED;\r
+ break;\r
+ }\r
+\r
+ if (buf_get_u32(reg_params[3].value, 0, 32) & 0x14)\r
+ {\r
+ retval = ERROR_FLASH_OPERATION_FAILED;\r
+ break;\r
+ }\r
+\r
+ buffer += thisrun_count * 2;\r
+ address += thisrun_count * 2;\r
+ count -= thisrun_count;\r
+ }\r
+\r
+ target_free_working_area(target, source);\r
+ target_free_working_area(target, pic32mx_info->write_algorithm);\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
+\r
+ return retval;\r
+#else\r
+ return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;\r
+#endif\r
+}\r
+\r
+int pic32mx_write_word(struct flash_bank_s *bank, u32 address, u32 word)\r
+{\r
+ target_t *target = bank->target;\r
+\r
+ target_write_u32(target, PIC32MX_NVMADDR, address);\r
+ target_write_u32(target, PIC32MX_NVMDATA, word);\r
+\r
+ return pic32mx_nvm_exec(bank, NVMCON_OP_WORD_PROG, 5);\r
+}\r
+\r
+int pic32mx_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count)\r
+{\r
+ target_t *target = bank->target;\r
+ u32 words_remaining = (count / 4);\r
+ u32 bytes_remaining = (count & 0x00000003);\r
+ u32 address = bank->base + offset;\r
+ u32 bytes_written = 0;\r
+ u32 status;\r
+ u32 retval;\r
+\r
+ if (bank->target->state != TARGET_HALTED)\r
+ {\r
+ LOG_ERROR("Target not halted");\r
+ return ERROR_TARGET_NOT_HALTED;\r
+ }\r
+\r
+ if (offset & 0x3)\r
+ {\r
+ LOG_WARNING("offset 0x%x breaks required 4-byte alignment", offset);\r
+ return ERROR_FLASH_DST_BREAKS_ALIGNMENT;\r
+ }\r
+\r
+ /* multiple words (4-byte) to be programmed? */\r
+ if (words_remaining > 0)\r
+ {\r
+ /* try using a block write */\r
+ if ((retval = pic32mx_write_block(bank, buffer, offset, words_remaining)) != ERROR_OK)\r
+ {\r
+ if (retval == ERROR_TARGET_RESOURCE_NOT_AVAILABLE)\r
+ {\r
+ /* if block write failed (no sufficient working area),\r
+ * we use normal (slow) single dword accesses */\r
+ LOG_WARNING("couldn't use block writes, falling back to single memory accesses");\r
+ }\r
+ else if (retval == ERROR_FLASH_OPERATION_FAILED)\r
+ {\r
+ LOG_ERROR("flash writing failed with error code: 0x%x", retval);\r
+ return ERROR_FLASH_OPERATION_FAILED;\r
+ }\r
+ }\r
+ else\r
+ {\r
+ buffer += words_remaining * 4;\r
+ address += words_remaining * 4;\r
+ words_remaining = 0;\r
+ }\r
+ }\r
+\r
+ while (words_remaining > 0)\r
+ {\r
+ status = pic32mx_write_word(bank, address, *(u32*)(buffer + bytes_written));\r
+\r
+ if( status & NVMCON_NVMERR )\r
+ return ERROR_FLASH_OPERATION_FAILED;\r
+ if( status & NVMCON_LVDERR )\r
+ return ERROR_FLASH_OPERATION_FAILED;\r
+\r
+ bytes_written += 4;\r
+ words_remaining--;\r
+ address += 4;\r
+ }\r
+\r
+ if (bytes_remaining)\r
+ {\r
+ u8 last_word[4] = {0xff, 0xff, 0xff, 0xff};\r
+ int i = 0;\r
+\r
+ while(bytes_remaining > 0)\r
+ {\r
+ /* Assumes little endian */\r
+ last_word[i++] = *(buffer + bytes_written);\r
+ bytes_remaining--;\r
+ bytes_written++;\r
+ }\r
+\r
+ status = pic32mx_write_word(bank, address, *(u32*)last_word);\r
+\r
+ if( status & NVMCON_NVMERR )\r
+ return ERROR_FLASH_OPERATION_FAILED;\r
+ if( status & NVMCON_LVDERR )\r
+ return ERROR_FLASH_OPERATION_FAILED;\r
+ }\r
+\r
+ return ERROR_OK;\r
+}\r
+\r
+int pic32mx_probe(struct flash_bank_s *bank)\r
+{\r
+ target_t *target = bank->target;\r
+ pic32mx_flash_bank_t *pic32mx_info = bank->driver_priv;\r
+ mips32_common_t *mips32 = target->arch_info;\r
+ mips_ejtag_t *ejtag_info = &mips32->ejtag_info;\r
+ int i;\r
+ u16 num_pages;\r
+ u32 device_id;\r
+ int page_size;\r
+\r
+ pic32mx_info->probed = 0;\r
+\r
+ device_id = ejtag_info->idcode;\r
+ LOG_INFO( "device id = 0x%08x (manuf 0x%03x dev 0x%02x, ver 0x%03x)", device_id, (device_id>>1)&0x7ff, (device_id>>12)&0xff, (device_id>>20)&0xfff );\r
+\r
+ if(((device_id>>1)&0x7ff) != PIC32MX_MANUF_ID) {\r
+ LOG_WARNING( "Cannot identify target as a PIC32MX family." );\r
+ return ERROR_FLASH_OPERATION_FAILED;\r
+ }\r
+\r
+ page_size = 4096;\r
+ if(bank->base == PIC32MX_KSEG1_BOOT_FLASH || bank->base == 1) {\r
+ /* 0xBFC00000: Boot flash size fixed at 12k */\r
+ num_pages = 12;\r
+ } else {\r
+ /* 0xBD000000: Program flash size varies with device */\r
+ for(i=0; pic32mx_devs[i].name != NULL; i++)\r
+ if(pic32mx_devs[i].devid == ((device_id >> 12) & 0xff)) {\r
+ num_pages = pic32mx_devs[i].pfm_size;\r
+ break;\r
+ }\r
+ if(pic32mx_devs[i].name == NULL) {\r
+ LOG_WARNING( "Cannot identify target as a PIC32MX family." );\r
+ return ERROR_FLASH_OPERATION_FAILED;\r
+ }\r
+ }\r
+\r
+#if 0\r
+ if (bank->target->state != TARGET_HALTED)\r
+ {\r
+ LOG_ERROR("Target not halted");\r
+ return ERROR_TARGET_NOT_HALTED;\r
+ }\r
+\r
+ /* get flash size from target */\r
+ if (target_read_u16(target, 0x1FFFF7E0, &num_pages) != ERROR_OK)\r
+ {\r
+ /* failed reading flash size, default to max target family */\r
+ num_pages = 0xffff;\r
+ }\r
+#endif\r
+\r
+ LOG_INFO( "flash size = %dkbytes", num_pages );\r
+\r
+ /* calculate numbers of pages */\r
+ num_pages /= (page_size / 1024);\r
+\r
+ if(bank->base == 0) bank->base = PIC32MX_KSEG1_PGM_FLASH;\r
+ if(bank->base == 1) bank->base = PIC32MX_KSEG1_BOOT_FLASH;\r
+ bank->size = (num_pages * page_size);\r
+ bank->num_sectors = num_pages;\r
+ bank->chip_width = 4;\r
+ bank->bus_width = 4;\r
+ bank->sectors = malloc(sizeof(flash_sector_t) * num_pages);\r
+\r
+ for (i = 0; i < num_pages; i++)\r
+ {\r
+ bank->sectors[i].offset = i * page_size;\r
+ bank->sectors[i].size = page_size;\r
+ bank->sectors[i].is_erased = -1;\r
+ bank->sectors[i].is_protected = 1;\r
+ }\r
+\r
+ pic32mx_info->probed = 1;\r
+\r
+ return ERROR_OK;\r
+}\r
+\r
+int pic32mx_auto_probe(struct flash_bank_s *bank)\r
+{\r
+ pic32mx_flash_bank_t *pic32mx_info = bank->driver_priv;\r
+ if (pic32mx_info->probed)\r
+ return ERROR_OK;\r
+ return pic32mx_probe(bank);\r
+}\r
+\r
+int pic32mx_handle_part_id_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)\r
+{\r
+ return ERROR_OK;\r
+}\r
+\r
+int pic32mx_info(struct flash_bank_s *bank, char *buf, int buf_size)\r
+{\r
+ target_t *target = bank->target;\r
+ mips32_common_t *mips32 = target->arch_info;\r
+ mips_ejtag_t *ejtag_info = &mips32->ejtag_info;\r
+ u32 device_id;\r
+ int printed, i;\r
+\r
+ device_id = ejtag_info->idcode;\r
+\r
+ if(((device_id>>1)&0x7ff) != PIC32MX_MANUF_ID) {\r
+ snprintf(buf, buf_size, "Cannot identify target as a PIC32MX family (manufacturer 0x%03d != 0x%03d)\n", (device_id>>1)&0x7ff, PIC32MX_MANUF_ID);\r
+ return ERROR_FLASH_OPERATION_FAILED;\r
+ }\r
+ for(i=0; pic32mx_devs[i].name != NULL; i++)\r
+ if(pic32mx_devs[i].devid == ((device_id >> 12) & 0xff)) {\r
+ printed = snprintf(buf, buf_size, "PIC32MX%s", pic32mx_devs[i].name);\r
+ break;\r
+ }\r
+ if(pic32mx_devs[i].name == NULL) {\r
+ snprintf(buf, buf_size, "Cannot identify target as a PIC32MX family\n");\r
+ return ERROR_FLASH_OPERATION_FAILED;\r
+ }\r
+ buf += printed;\r
+ buf_size -= printed;\r
+ printed = snprintf(buf, buf_size, " Ver: 0x%03x", (device_id>>20)&0xfff);\r
+\r
+ return ERROR_OK;\r
+}\r
+\r
+#if 0\r
+int pic32mx_handle_lock_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)\r
+{\r
+ flash_bank_t *bank;\r
+ target_t *target = NULL;\r
+ pic32mx_flash_bank_t *pic32mx_info = NULL;\r
+\r
+ if (argc < 1)\r
+ {\r
+ command_print(cmd_ctx, "pic32mx lock <bank>");\r
+ return ERROR_OK;\r
+ }\r
+\r
+ bank = get_flash_bank_by_num(strtoul(args[0], NULL, 0));\r
+ if (!bank)\r
+ {\r
+ command_print(cmd_ctx, "flash bank '#%s' is out of bounds", args[0]);\r
+ return ERROR_OK;\r
+ }\r
+\r
+ pic32mx_info = bank->driver_priv;\r
+\r
+ target = bank->target;\r
+\r
+ if (target->state != TARGET_HALTED)\r
+ {\r
+ LOG_ERROR("Target not halted");\r
+ return ERROR_TARGET_NOT_HALTED;\r
+ }\r
+\r
+ if (pic32mx_erase_options(bank) != ERROR_OK)\r
+ {\r
+ command_print(cmd_ctx, "pic32mx failed to erase options");\r
+ return ERROR_OK;\r
+ }\r
+\r
+ /* set readout protection */\r
+ pic32mx_info->option_bytes.RDP = 0;\r
+\r
+ if (pic32mx_write_options(bank) != ERROR_OK)\r
+ {\r
+ command_print(cmd_ctx, "pic32mx failed to lock device");\r
+ return ERROR_OK;\r
+ }\r
+\r
+ command_print(cmd_ctx, "pic32mx locked");\r
+\r
+ return ERROR_OK;\r
+}\r
+\r
+int pic32mx_handle_unlock_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)\r
+{\r
+ flash_bank_t *bank;\r
+ target_t *target = NULL;\r
+ pic32mx_flash_bank_t *pic32mx_info = NULL;\r
+\r
+ if (argc < 1)\r
+ {\r
+ command_print(cmd_ctx, "pic32mx unlock <bank>");\r
+ return ERROR_OK;\r
+ }\r
+\r
+ bank = get_flash_bank_by_num(strtoul(args[0], NULL, 0));\r
+ if (!bank)\r
+ {\r
+ command_print(cmd_ctx, "flash bank '#%s' is out of bounds", args[0]);\r
+ return ERROR_OK;\r
+ }\r
+\r
+ pic32mx_info = bank->driver_priv;\r
+\r
+ target = bank->target;\r
+\r
+ if (target->state != TARGET_HALTED)\r
+ {\r
+ LOG_ERROR("Target not halted");\r
+ return ERROR_TARGET_NOT_HALTED;\r
+ }\r
+\r
+ if (pic32mx_erase_options(bank) != ERROR_OK)\r
+ {\r
+ command_print(cmd_ctx, "pic32mx failed to unlock device");\r
+ return ERROR_OK;\r
+ }\r
+\r
+ if (pic32mx_write_options(bank) != ERROR_OK)\r
+ {\r
+ command_print(cmd_ctx, "pic32mx failed to lock device");\r
+ return ERROR_OK;\r
+ }\r
+\r
+ command_print(cmd_ctx, "pic32mx unlocked");\r
+\r
+ return ERROR_OK;\r
+}\r
+#endif\r
+\r
+int pic32mx_chip_erase(struct flash_bank_s *bank)\r
+{\r
+ target_t *target = bank->target;\r
+ u32 status;\r
+\r
+ if (target->state != TARGET_HALTED)\r
+ {\r
+ LOG_ERROR("Target not halted");\r
+ return ERROR_TARGET_NOT_HALTED;\r
+ }\r
+\r
+ LOG_INFO("PIC32MX chip erase called");\r
+\r
+#if 0\r
+ /* unlock option flash registers */\r
+ target_write_u32(target, PIC32MX_FLASH_KEYR, KEY1);\r
+ target_write_u32(target, PIC32MX_FLASH_KEYR, KEY2);\r
+\r
+ /* chip erase flash memory */\r
+ target_write_u32(target, PIC32MX_FLASH_CR, FLASH_MER);\r
+ target_write_u32(target, PIC32MX_FLASH_CR, FLASH_MER|FLASH_STRT);\r
+\r
+ status = pic32mx_wait_status_busy(bank, 10);\r
+\r
+ target_write_u32(target, PIC32MX_FLASH_CR, FLASH_LOCK);\r
+\r
+ if( status & FLASH_WRPRTERR )\r
+ {\r
+ LOG_ERROR("pic32mx device protected");\r
+ return ERROR_OK;\r
+ }\r
+\r
+ if( status & FLASH_PGERR )\r
+ {\r
+ LOG_ERROR("pic32mx device programming failed");\r
+ return ERROR_OK;\r
+ }\r
+#endif\r
+\r
+ return ERROR_OK;\r
+}\r
+\r
+int pic32mx_handle_chip_erase_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)\r
+{\r
+ flash_bank_t *bank;\r
+ int i;\r
+\r
+#if 0\r
+ if (argc != 0)\r
+ {\r
+ command_print(cmd_ctx, "pic32mx chip_erase");\r
+ return ERROR_OK;\r
+ }\r
+\r
+ bank = get_flash_bank_by_num(strtoul(args[0], NULL, 0));\r
+ if (!bank)\r
+ {\r
+ command_print(cmd_ctx, "flash bank '#%s' is out of bounds", args[0]);\r
+ return ERROR_OK;\r
+ }\r
+\r
+ if (pic32mx_chip_erase(bank) == ERROR_OK)\r
+ {\r
+ /* set all sectors as erased */\r
+ for (i = 0; i < bank->num_sectors; i++)\r
+ {\r
+ bank->sectors[i].is_erased = 1;\r
+ }\r
+\r
+ command_print(cmd_ctx, "pic32mx chip erase complete");\r
+ }\r
+ else\r
+ {\r
+ command_print(cmd_ctx, "pic32mx chip erase failed");\r
+ }\r
+#endif\r
+\r
+ return ERROR_OK;\r
+}\r
+\r
+int pic32mx_handle_pgm_word_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)\r
+{\r
+ flash_bank_t *bank;\r
+ u32 address, value;\r
+ int i;\r
+ int status, res;\r
+\r
+ if (argc != 3)\r
+ {\r
+ command_print(cmd_ctx, "pic32mx pgm_word <addr> <value> <bank>");\r
+ return ERROR_OK;\r
+ }\r
+\r
+ address = strtoul(args[0], NULL, 0);\r
+ value = strtoul(args[1], NULL, 0);\r
+\r
+ bank = get_flash_bank_by_num(strtoul(args[2], NULL, 0));\r
+ if (!bank)\r
+ {\r
+ command_print(cmd_ctx, "flash bank '#%s' is out of bounds", args[2]);\r
+ return ERROR_OK;\r
+ }\r
+ if (address < bank->base || address >= (bank->base+bank->size))\r
+ {\r
+ command_print(cmd_ctx, "flash address '%s' is out of bounds", args[0]);\r
+ return ERROR_OK;\r
+ }\r
+\r
+ res = ERROR_OK;\r
+ status = pic32mx_write_word(bank, address, value);\r
+ if( status & NVMCON_NVMERR )\r
+ res = ERROR_FLASH_OPERATION_FAILED;\r
+ if( status & NVMCON_LVDERR )\r
+ res = ERROR_FLASH_OPERATION_FAILED;\r
+\r
+ if (res == ERROR_OK)\r
+ command_print(cmd_ctx, "pic32mx pgm word complete");\r
+ else\r
+ command_print(cmd_ctx, "pic32mx pgm word failed (status=0x%x)", status);\r
+\r
+ return ERROR_OK;\r
+}\r
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