X-Git-Url: https://review.openocd.org/gitweb?p=openocd.git;a=blobdiff_plain;f=src%2Fflash%2Fat91sam7.c;h=0c7a7c0a378358a4e2bb6ea3d8c019bea4589480;hp=f552900d70e0cff9c5af485a95e03187e79f364f;hb=96261e827782235709fcdfb2c1bbb93fedc977be;hpb=34bc9457e9190f2a3ec9c3ec4c6888ef1aa7ac63 diff --git a/src/flash/at91sam7.c b/src/flash/at91sam7.c index f552900d70..0c7a7c0a37 100644 --- a/src/flash/at91sam7.c +++ b/src/flash/at91sam7.c @@ -77,7 +77,7 @@ flash_driver_t at91sam7_flash = .protect = at91sam7_protect, .write = at91sam7_write, .probe = at91sam7_probe, - .auto_probe = at91sam7_auto_probe, + .auto_probe = at91sam7_probe, .erase_check = at91sam7_erase_check, .protect_check = at91sam7_protect_check, .info = at91sam7_info @@ -145,7 +145,7 @@ u32 at91sam7_get_flash_status(flash_bank_t *bank, u8 flashplane) return fsr; } -/** Read clock configuration and set at91sam7_info->usec_clocks*/ +/* Read clock configuration and set at91sam7_info->usec_clocks*/ void at91sam7_read_clock_info(flash_bank_t *bank) { at91sam7_flash_bank_t *at91sam7_info = bank->driver_priv; @@ -180,7 +180,7 @@ void at91sam7_read_clock_info(flash_bank_t *bank) case 2: /* Reserved */ break; - case 3: /* PLL Clock */ + case 3: /* PLL Clock */ if (mcfr & CKGR_MCFR_MAINRDY) { target_read_u32(target, CKGR_PLLR, &pllr); @@ -313,11 +313,9 @@ int at91sam7_read_part_info(struct flash_bank_s *bank) target_t *target = bank->target; u32 cidr, status; int sectornum; - - if (bank->target->state != TARGET_HALTED) - { - return ERROR_TARGET_NOT_HALTED; - } + + if (at91sam7_info->cidr != 0) + return ERROR_OK; /* already probed, multiple probes may cause memory leak, not allowed */ /* Read and parse chip identification register */ target_read_u32(target, DBGU_CIDR, &cidr); @@ -558,9 +556,8 @@ int at91sam7_read_part_info(struct flash_bank_s *bank) return ERROR_OK; } - WARNING("at91sam7 flash only tested for AT91SAM7Sxx series"); - - return ERROR_OK; + WARNING("at91sam7 flash only tested for AT91SAM7Sxx series"); + return ERROR_OK; } int at91sam7_erase_check(struct flash_bank_s *bank) @@ -586,13 +583,12 @@ int at91sam7_protect_check(struct flash_bank_s *bank) if (at91sam7_info->cidr == 0) { - at91sam7_read_part_info(bank); + return ERROR_FLASH_BANK_NOT_PROBED; } - if (at91sam7_info->cidr == 0) + if (bank->target->state != TARGET_HALTED) { - WARNING("Cannot identify target as an AT91SAM"); - return ERROR_FLASH_OPERATION_FAILED; + return ERROR_TARGET_NOT_HALTED; } for (flashplane=0;flashplanenum_planes;flashplane++) @@ -619,7 +615,6 @@ int at91sam7_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, ch at91sam7_info = malloc(sizeof(at91sam7_flash_bank_t)); bank->driver_priv = at91sam7_info; - at91sam7_info->probed = 0; /* part wasn't probed for info yet */ at91sam7_info->cidr = 0; @@ -634,21 +629,15 @@ int at91sam7_erase(struct flash_bank_s *bank, int first, int last) at91sam7_flash_bank_t *at91sam7_info = bank->driver_priv; u8 flashplane; - if (bank->target->state != TARGET_HALTED) - { - return ERROR_TARGET_NOT_HALTED; - } - if (at91sam7_info->cidr == 0) { - at91sam7_read_part_info(bank); + return ERROR_FLASH_BANK_NOT_PROBED; } - if (at91sam7_info->cidr == 0) + if (bank->target->state != TARGET_HALTED) { - WARNING("Cannot identify target as an AT91SAM"); - return ERROR_FLASH_OPERATION_FAILED; - } + return ERROR_TARGET_NOT_HALTED; + } if ((first < 0) || (last < first) || (last >= bank->num_sectors)) { @@ -683,6 +672,11 @@ int at91sam7_protect(struct flash_bank_s *bank, int set, int first, int last) at91sam7_flash_bank_t *at91sam7_info = bank->driver_priv; + if (at91sam7_info->cidr == 0) + { + return ERROR_FLASH_BANK_NOT_PROBED; + } + if (bank->target->state != TARGET_HALTED) { return ERROR_TARGET_NOT_HALTED; @@ -693,17 +687,6 @@ int at91sam7_protect(struct flash_bank_s *bank, int set, int first, int last) return ERROR_FLASH_SECTOR_INVALID; } - if (at91sam7_info->cidr == 0) - { - at91sam7_read_part_info(bank); - } - - if (at91sam7_info->cidr == 0) - { - WARNING("Cannot identify target as an AT91SAM"); - return ERROR_FLASH_OPERATION_FAILED; - } - at91sam7_read_clock_info(bank); for (lockregion=first;lockregion<=last;lockregion++) @@ -738,22 +721,16 @@ int at91sam7_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count) u32 first_page, last_page, pagen, buffer_pos; u8 flashplane; - if (bank->target->state != TARGET_HALTED) - { - return ERROR_TARGET_NOT_HALTED; - } - if (at91sam7_info->cidr == 0) { - at91sam7_read_part_info(bank); + return ERROR_FLASH_BANK_NOT_PROBED; } - if (at91sam7_info->cidr == 0) + if (bank->target->state != TARGET_HALTED) { - WARNING("Cannot identify target as an AT91SAM"); - return ERROR_FLASH_OPERATION_FAILED; + return ERROR_TARGET_NOT_HALTED; } - + if (offset + count > bank->size) return ERROR_FLASH_DST_OUT_OF_BANK; @@ -809,46 +786,34 @@ int at91sam7_probe(struct flash_bank_s *bank) * if this is an at91sam7, it has the configured flash */ at91sam7_flash_bank_t *at91sam7_info = bank->driver_priv; - at91sam7_info->probed = 0; + int retval; - if (at91sam7_info->cidr == 0) + if (at91sam7_info->cidr != 0) { - at91sam7_read_part_info(bank); + return ERROR_OK; /* already probed */ } - if (at91sam7_info->cidr == 0) + if (bank->target->state != TARGET_HALTED) { - WARNING("Cannot identify target as an AT91SAM"); - return ERROR_FLASH_OPERATION_FAILED; + return ERROR_TARGET_NOT_HALTED; } - - at91sam7_info->probed = 1; + + retval = at91sam7_read_part_info(bank); + if (retval != ERROR_OK) + return retval; return ERROR_OK; } -int at91sam7_auto_probe(struct flash_bank_s *bank) -{ - at91sam7_flash_bank_t *at91sam7_info = bank->driver_priv; - if (at91sam7_info->probed) - return ERROR_OK; - return at91sam7_probe(bank); -} - int at91sam7_info(struct flash_bank_s *bank, char *buf, int buf_size) { int printed, flashplane; at91sam7_flash_bank_t *at91sam7_info = bank->driver_priv; - at91sam7_read_part_info(bank); - if (at91sam7_info->cidr == 0) { - printed = snprintf(buf, buf_size, "Cannot identify target as an AT91SAM\n"); - buf += printed; - buf_size -= printed; - return ERROR_FLASH_OPERATION_FAILED; + return ERROR_FLASH_BANK_NOT_PROBED; } printed = snprintf(buf, buf_size, "\nat91sam7 information: Chip is %s\n",at91sam7_info->target_name); @@ -884,7 +849,7 @@ int at91sam7_info(struct flash_bank_s *bank, char *buf, int buf_size) buf_size -= printed; } - printed = snprintf(buf, buf_size, "securitybit: %i, nvmbits: 0x%1.1x\n", at91sam7_info->securitybit, at91sam7_info->nvmbits); + printed = snprintf(buf, buf_size, "securitybit: %i, nvmbits(%i): 0x%1.1x\n", at91sam7_info->securitybit, at91sam7_info->num_nvmbits, at91sam7_info->nvmbits); buf += printed; buf_size -= printed; @@ -909,6 +874,7 @@ int at91sam7_handle_gpnvm_command(struct command_context_s *cmd_ctx, char *cmd, u32 status; char *value; at91sam7_flash_bank_t *at91sam7_info; + int retval; if (argc < 3) { @@ -916,32 +882,48 @@ int at91sam7_handle_gpnvm_command(struct command_context_s *cmd_ctx, char *cmd, return ERROR_OK; } - bank = get_flash_bank_by_num(strtoul(args[0], NULL, 0)); + bank = get_flash_bank_by_num_noprobe(strtoul(args[0], NULL, 0)); bit = atoi(args[1]); value = args[2]; - if (!bank) + if (bank == NULL) { - command_print(cmd_ctx, "flash bank '#%s' is out of bounds", args[0]); - return ERROR_OK; + return ERROR_FLASH_BANK_INVALID; + } + + if (bank->driver != &at91sam7_flash) + { + command_print(cmd_ctx, "not an at91sam7 flash bank '%s'", args[0]); + return ERROR_FLASH_BANK_INVALID; + } + + if (strcmp(value, "set") == 0) + { + flashcmd = SGPB; + } + else if (strcmp(value, "clear") == 0) + { + flashcmd = CGPB; + } + else + { + return ERROR_COMMAND_SYNTAX_ERROR; } at91sam7_info = bank->driver_priv; if (bank->target->state != TARGET_HALTED) { + ERROR("target has to be halted to perform flash operation"); return ERROR_TARGET_NOT_HALTED; } if (at91sam7_info->cidr == 0) { - at91sam7_read_part_info(bank); - } - - if (at91sam7_info->cidr == 0) - { - WARNING("Cannot identify target as an AT91SAM"); - return ERROR_FLASH_OPERATION_FAILED; + retval = at91sam7_read_part_info(bank); + if (retval != ERROR_OK) { + return retval; + } } if ((bit<0) || (at91sam7_info->num_nvmbits <= bit)) @@ -950,20 +932,6 @@ int at91sam7_handle_gpnvm_command(struct command_context_s *cmd_ctx, char *cmd, return ERROR_OK; } - if (strcmp(value, "set") == 0) - { - flashcmd = SGPB; - } - else if (strcmp(value, "clear") == 0) - { - flashcmd = CGPB; - } - else - { - command_print(cmd_ctx, "usage: at91sam7 gpnvm "); - return ERROR_OK; - } - /* Configure the flash controller timing */ at91sam7_read_clock_info(bank); at91sam7_set_flash_mode(bank, 0, FMR_TIMING_NVBITS);