From fe9228a32db930be297d4d3b35ffb94d6de1b9ab Mon Sep 17 00:00:00 2001 From: Zachary T Welch Date: Wed, 2 Dec 2009 15:54:15 -0800 Subject: move nor drivers to src/flash/nor Moves NOR flash drivers to 'src/flash/nor/'. Adds 'src/flash/nor/Makefile.am'. Builds 'libocdflashnor.la'. --- src/flash/at91sam7.c | 1213 -------------------------------------------------- 1 file changed, 1213 deletions(-) delete mode 100644 src/flash/at91sam7.c (limited to 'src/flash/at91sam7.c') diff --git a/src/flash/at91sam7.c b/src/flash/at91sam7.c deleted file mode 100644 index f9b87bab..00000000 --- a/src/flash/at91sam7.c +++ /dev/null @@ -1,1213 +0,0 @@ -/*************************************************************************** - * Copyright (C) 2006 by Magnus Lundin * - * lundin@mlu.mine.nu * - * * - * Copyright (C) 2008 by Gheorghe Guran (atlas) * - * * - * 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. * -****************************************************************************/ - -/*************************************************************************** -* -* New flash setup command: -* -* flash bank -* [ -* -* -* ] -* -* - MUST be used if clock is from external source, -* CAN be used if main oscillator frequency is known (recommended) -* Examples: -* ==== RECOMMENDED (covers clock speed) ============ -* flash bank at91sam7 0x00100000 0 0 4 $_TARGETNAME AT91SAM7XC256 1 16 64 256 3 25000 -* (if auto-detect fails; provides clock spec) -* flash bank at91sam7 0 0 0 0 $_TARGETNAME 0 0 0 0 0 0 25000 -* (auto-detect everything except the clock) -* ==== NOT RECOMMENDED !!! (clock speed is not configured) ==== -* flash bank at91sam7 0x00100000 0 0 4 $_TARGETNAME AT91SAM7XC256 1 16 64 256 3 0 -* (if auto-detect fails) -* flash bank at91sam7 0 0 0 0 $_TARGETNAME -* (old style, auto-detect everything) -****************************************************************************/ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include "at91sam7.h" -#include "binarybuffer.h" - -static int at91sam7_protect_check(struct flash_bank *bank); -static int at91sam7_write(struct flash_bank *bank, uint8_t *buffer, uint32_t offset, uint32_t count); - -static uint32_t at91sam7_get_flash_status(struct target *target, int bank_number); -static void at91sam7_set_flash_mode(struct flash_bank *bank, int mode); -static uint32_t at91sam7_wait_status_busy(struct flash_bank *bank, uint32_t waitbits, int timeout); -static int at91sam7_flash_command(struct flash_bank *bank, uint8_t cmd, uint16_t pagen); - -static uint32_t MC_FMR[4] = { 0xFFFFFF60, 0xFFFFFF70, 0xFFFFFF80, 0xFFFFFF90 }; -static uint32_t MC_FCR[4] = { 0xFFFFFF64, 0xFFFFFF74, 0xFFFFFF84, 0xFFFFFF94 }; -static uint32_t MC_FSR[4] = { 0xFFFFFF68, 0xFFFFFF78, 0xFFFFFF88, 0xFFFFFF98 }; - -static char * EPROC[8]= {"Unknown","ARM946-E","ARM7TDMI","Unknown","ARM920T","ARM926EJ-S","Unknown","Unknown"}; - -#if 0 -static long SRAMSIZ[16] = { - -1, - 0x0400, /* 1K */ - 0x0800, /* 2K */ - -1, - 0x1c000, /* 112K */ - 0x1000, /* 4K */ - 0x14000, /* 80K */ - 0x28000, /* 160K */ - 0x2000, /* 8K */ - 0x4000, /* 16K */ - 0x8000, /* 32K */ - 0x10000, /* 64K */ - 0x20000, /* 128K */ - 0x40000, /* 256K */ - 0x18000, /* 96K */ - 0x80000, /* 512K */ -}; -#endif - - -static uint32_t at91sam7_get_flash_status(struct target *target, int bank_number) -{ - uint32_t fsr; - target_read_u32(target, MC_FSR[bank_number], &fsr); - - return fsr; -} - -/* Read clock configuration and set at91sam7_info->mck_freq */ -static void at91sam7_read_clock_info(struct flash_bank *bank) -{ - struct at91sam7_flash_bank *at91sam7_info = bank->driver_priv; - struct target *target = bank->target; - uint32_t mckr, mcfr, pllr, mor; - unsigned long tmp = 0, mainfreq; - - /* Read Clock Generator Main Oscillator Register */ - target_read_u32(target, CKGR_MOR, &mor); - /* Read Clock Generator Main Clock Frequency Register */ - target_read_u32(target, CKGR_MCFR, &mcfr); - /* Read Master Clock Register*/ - target_read_u32(target, PMC_MCKR, &mckr); - /* Read Clock Generator PLL Register */ - target_read_u32(target, CKGR_PLLR, &pllr); - - at91sam7_info->mck_valid = 0; - at91sam7_info->mck_freq = 0; - switch (mckr & PMC_MCKR_CSS) - { - case 0: /* Slow Clock */ - at91sam7_info->mck_valid = 1; - tmp = RC_FREQ; - break; - - case 1: /* Main Clock */ - if ((mcfr & CKGR_MCFR_MAINRDY) && - (at91sam7_info->ext_freq == 0)) - { - at91sam7_info->mck_valid = 1; - tmp = RC_FREQ / 16ul * (mcfr & 0xffff); - } - else if (at91sam7_info->ext_freq != 0) - { - at91sam7_info->mck_valid = 1; - tmp = at91sam7_info->ext_freq; - } - break; - - case 2: /* Reserved */ - break; - - case 3: /* PLL Clock */ - if ((mcfr & CKGR_MCFR_MAINRDY) && - (at91sam7_info->ext_freq == 0)) - { - target_read_u32(target, CKGR_PLLR, &pllr); - if (!(pllr & CKGR_PLLR_DIV)) - break; /* 0 Hz */ - at91sam7_info->mck_valid = 1; - mainfreq = RC_FREQ / 16ul * (mcfr & 0xffff); - /* Integer arithmetic should have sufficient precision - * as long as PLL is properly configured. */ - tmp = mainfreq / (pllr & CKGR_PLLR_DIV)* - (((pllr & CKGR_PLLR_MUL) >> 16) + 1); - } - else if ((at91sam7_info->ext_freq != 0) && - ((pllr&CKGR_PLLR_DIV) != 0)) - { - at91sam7_info->mck_valid = 1; - tmp = at91sam7_info->ext_freq / (pllr&CKGR_PLLR_DIV)* - (((pllr & CKGR_PLLR_MUL) >> 16) + 1); - } - break; - } - - /* Prescaler adjust */ - if ((((mckr & PMC_MCKR_PRES) >> 2) == 7) || (tmp == 0)) - { - at91sam7_info->mck_valid = 0; - at91sam7_info->mck_freq = 0; - } - else if (((mckr & PMC_MCKR_PRES) >> 2) != 0) - at91sam7_info->mck_freq = tmp >> ((mckr & PMC_MCKR_PRES) >> 2); - else - at91sam7_info->mck_freq = tmp; -} - -/* Setup the timimg registers for nvbits or normal flash */ -static void at91sam7_set_flash_mode(struct flash_bank *bank, int mode) -{ - uint32_t fmr, fmcn = 0, fws = 0; - struct at91sam7_flash_bank *at91sam7_info = bank->driver_priv; - struct target *target = bank->target; - - if (mode && (mode != at91sam7_info->flashmode)) - { - /* Always round up (ceil) */ - if (mode == FMR_TIMING_NVBITS) - { - if (at91sam7_info->cidr_arch == 0x60) - { - /* AT91SAM7A3 uses master clocks in 100 ns */ - fmcn = (at91sam7_info->mck_freq/10000000ul) + 1; - } - else - { - /* master clocks in 1uS for ARCH 0x7 types */ - fmcn = (at91sam7_info->mck_freq/1000000ul) + 1; - } - } - else if (mode == FMR_TIMING_FLASH) - { - /* main clocks in 1.5uS */ - fmcn = (at91sam7_info->mck_freq/1000000ul)+ - (at91sam7_info->mck_freq/2000000ul) + 1; - } - - /* hard overclocking */ - if (fmcn > 0xFF) - fmcn = 0xFF; - - /* Only allow fmcn = 0 if clock period is > 30 us = 33kHz. */ - if (at91sam7_info->mck_freq <= 33333ul) - fmcn = 0; - /* Only allow fws = 0 if clock frequency is < 30 MHz. */ - if (at91sam7_info->mck_freq > 30000000ul) - fws = 1; - - LOG_DEBUG("fmcn[%i]: %i", bank->bank_number, (int)(fmcn)); - fmr = fmcn << 16 | fws << 8; - target_write_u32(target, MC_FMR[bank->bank_number], fmr); - } - - at91sam7_info->flashmode = mode; -} - -static uint32_t at91sam7_wait_status_busy(struct flash_bank *bank, uint32_t waitbits, int timeout) -{ - uint32_t status; - - while ((!((status = at91sam7_get_flash_status(bank->target, bank->bank_number)) & waitbits)) && (timeout-- > 0)) - { - LOG_DEBUG("status[%i]: 0x%" PRIx32 "", (int)bank->bank_number, status); - alive_sleep(1); - } - - LOG_DEBUG("status[%i]: 0x%" PRIx32 "", bank->bank_number, status); - - if (status & 0x0C) - { - LOG_ERROR("status register: 0x%" PRIx32 "", status); - if (status & 0x4) - LOG_ERROR("Lock Error Bit Detected, Operation Abort"); - if (status & 0x8) - LOG_ERROR("Invalid command and/or bad keyword, Operation Abort"); - if (status & 0x10) - LOG_ERROR("Security Bit Set, Operation Abort"); - } - - return status; -} - -/* Send one command to the AT91SAM flash controller */ -static int at91sam7_flash_command(struct flash_bank *bank, uint8_t cmd, uint16_t pagen) -{ - uint32_t fcr; - struct at91sam7_flash_bank *at91sam7_info = bank->driver_priv; - struct target *target = bank->target; - - fcr = (0x5A << 24) | ((pagen&0x3FF) << 8) | cmd; - target_write_u32(target, MC_FCR[bank->bank_number], fcr); - LOG_DEBUG("Flash command: 0x%" PRIx32 ", flash bank: %i, page number: %u", fcr, bank->bank_number + 1, pagen); - - if ((at91sam7_info->cidr_arch == 0x60) && ((cmd == SLB) | (cmd == CLB))) - { - /* Lock bit manipulation on AT91SAM7A3 waits for FC_FSR bit 1, EOL */ - if (at91sam7_wait_status_busy(bank, MC_FSR_EOL, 10)&0x0C) - { - return ERROR_FLASH_OPERATION_FAILED; - } - return ERROR_OK; - } - - if (at91sam7_wait_status_busy(bank, MC_FSR_FRDY, 10)&0x0C) - { - return ERROR_FLASH_OPERATION_FAILED; - } - - return ERROR_OK; -} - -/* Read device id register, main clock frequency register and fill in driver info structure */ -static int at91sam7_read_part_info(struct flash_bank *bank) -{ - struct flash_bank *t_bank = bank; - struct at91sam7_flash_bank *at91sam7_info; - struct target *target = t_bank->target; - - uint16_t bnk, sec; - uint16_t arch; - uint32_t cidr; - uint8_t banks_num = 0; - uint16_t num_nvmbits = 0; - uint16_t sectors_num = 0; - uint16_t pages_per_sector = 0; - uint16_t page_size = 0; - uint32_t ext_freq; - uint32_t bank_size; - uint32_t base_address = 0; - char *target_name = "Unknown"; - - at91sam7_info = t_bank->driver_priv; - - if (at91sam7_info->cidr != 0) - { - /* flash already configured, update clock and check for protected sectors */ - struct flash_bank *fb = bank; - t_bank = fb; - - while (t_bank) - { - /* re-calculate master clock frequency */ - at91sam7_read_clock_info(t_bank); - - /* no timming */ - at91sam7_set_flash_mode(t_bank, FMR_TIMING_NONE); - - /* check protect state */ - at91sam7_protect_check(t_bank); - - t_bank = fb->next; - fb = t_bank; - } - - return ERROR_OK; - } - - /* Read and parse chip identification register */ - target_read_u32(target, DBGU_CIDR, &cidr); - if (cidr == 0) - { - LOG_WARNING("Cannot identify target as an AT91SAM"); - return ERROR_FLASH_OPERATION_FAILED; - } - - if (at91sam7_info->flash_autodetection == 0) - { - /* banks and sectors are already created, based on data from input file */ - struct flash_bank *fb = bank; - t_bank = fb; - while (t_bank) - { - at91sam7_info = t_bank->driver_priv; - - at91sam7_info->cidr = cidr; - at91sam7_info->cidr_ext = (cidr >> 31)&0x0001; - at91sam7_info->cidr_nvptyp = (cidr >> 28)&0x0007; - at91sam7_info->cidr_arch = (cidr >> 20)&0x00FF; - at91sam7_info->cidr_sramsiz = (cidr >> 16)&0x000F; - at91sam7_info->cidr_nvpsiz2 = (cidr >> 12)&0x000F; - at91sam7_info->cidr_nvpsiz = (cidr >> 8)&0x000F; - at91sam7_info->cidr_eproc = (cidr >> 5)&0x0007; - at91sam7_info->cidr_version = cidr&0x001F; - - /* calculate master clock frequency */ - at91sam7_read_clock_info(t_bank); - - /* no timming */ - at91sam7_set_flash_mode(t_bank, FMR_TIMING_NONE); - - /* check protect state */ - at91sam7_protect_check(t_bank); - - t_bank = fb->next; - fb = t_bank; - } - - return ERROR_OK; - } - - arch = (cidr >> 20)&0x00FF; - - /* check flash size */ - switch ((cidr >> 8)&0x000F) - { - case FLASH_SIZE_8KB: - break; - - case FLASH_SIZE_16KB: - banks_num = 1; - sectors_num = 8; - pages_per_sector = 32; - page_size = 64; - base_address = 0x00100000; - if (arch == 0x70) - { - num_nvmbits = 2; - target_name = "AT91SAM7S161/16"; - } - break; - - case FLASH_SIZE_32KB: - banks_num = 1; - sectors_num = 8; - pages_per_sector = 32; - page_size = 128; - base_address = 0x00100000; - if (arch == 0x70) - { - num_nvmbits = 2; - target_name = "AT91SAM7S321/32"; - } - if (arch == 0x72) - { - num_nvmbits = 3; - target_name = "AT91SAM7SE32"; - } - break; - - case FLASH_SIZE_64KB: - banks_num = 1; - sectors_num = 16; - pages_per_sector = 32; - page_size = 128; - base_address = 0x00100000; - if (arch == 0x70) - { - num_nvmbits = 2; - target_name = "AT91SAM7S64"; - } - break; - - case FLASH_SIZE_128KB: - banks_num = 1; - sectors_num = 8; - pages_per_sector = 64; - page_size = 256; - base_address = 0x00100000; - if (arch == 0x70) - { - num_nvmbits = 2; - target_name = "AT91SAM7S128"; - } - if (arch == 0x71) - { - num_nvmbits = 3; - target_name = "AT91SAM7XC128"; - } - if (arch == 0x72) - { - num_nvmbits = 3; - target_name = "AT91SAM7SE128"; - } - if (arch == 0x75) - { - num_nvmbits = 3; - target_name = "AT91SAM7X128"; - } - break; - - case FLASH_SIZE_256KB: - banks_num = 1; - sectors_num = 16; - pages_per_sector = 64; - page_size = 256; - base_address = 0x00100000; - if (arch == 0x60) - { - num_nvmbits = 3; - target_name = "AT91SAM7A3"; - } - if (arch == 0x70) - { - num_nvmbits = 2; - target_name = "AT91SAM7S256"; - } - if (arch == 0x71) - { - num_nvmbits = 3; - target_name = "AT91SAM7XC256"; - } - if (arch == 0x72) - { - num_nvmbits = 3; - target_name = "AT91SAM7SE256"; - } - if (arch == 0x75) - { - num_nvmbits = 3; - target_name = "AT91SAM7X256"; - } - break; - - case FLASH_SIZE_512KB: - banks_num = 2; - sectors_num = 16; - pages_per_sector = 64; - page_size = 256; - base_address = 0x00100000; - if (arch == 0x70) - { - num_nvmbits = 2; - target_name = "AT91SAM7S512"; - } - if (arch == 0x71) - { - num_nvmbits = 3; - target_name = "AT91SAM7XC512"; - } - if (arch == 0x72) - { - num_nvmbits = 3; - target_name = "AT91SAM7SE512"; - } - if (arch == 0x75) - { - num_nvmbits = 3; - target_name = "AT91SAM7X512"; - } - break; - - case FLASH_SIZE_1024KB: - break; - - case FLASH_SIZE_2048KB: - break; - } - - if (strcmp(target_name, "Unknown") == 0) - { - LOG_ERROR("Target autodetection failed! Please specify target parameters in configuration file"); - return ERROR_FLASH_OPERATION_FAILED; - } - - ext_freq = at91sam7_info->ext_freq; - - /* calculate bank size */ - bank_size = sectors_num * pages_per_sector * page_size; - - for (bnk = 0; bnk < banks_num; bnk++) - { - if (bnk > 0) - { - /* create a new flash bank element */ - struct flash_bank *fb = malloc(sizeof(struct flash_bank)); - fb->target = target; - fb->driver = bank->driver; - fb->driver_priv = malloc(sizeof(struct at91sam7_flash_bank)); - fb->next = NULL; - - /* link created bank in 'flash_banks' list and redirect t_bank */ - t_bank->next = fb; - t_bank = fb; - } - - t_bank->bank_number = bnk; - t_bank->base = base_address + bnk * bank_size; - t_bank->size = bank_size; - t_bank->chip_width = 0; - t_bank->bus_width = 4; - t_bank->num_sectors = sectors_num; - - /* allocate sectors */ - t_bank->sectors = malloc(sectors_num * sizeof(struct flash_sector)); - for (sec = 0; sec < sectors_num; sec++) - { - t_bank->sectors[sec].offset = sec * pages_per_sector * page_size; - t_bank->sectors[sec].size = pages_per_sector * page_size; - t_bank->sectors[sec].is_erased = -1; - t_bank->sectors[sec].is_protected = -1; - } - - at91sam7_info = t_bank->driver_priv; - - at91sam7_info->cidr = cidr; - at91sam7_info->cidr_ext = (cidr >> 31)&0x0001; - at91sam7_info->cidr_nvptyp = (cidr >> 28)&0x0007; - at91sam7_info->cidr_arch = (cidr >> 20)&0x00FF; - at91sam7_info->cidr_sramsiz = (cidr >> 16)&0x000F; - at91sam7_info->cidr_nvpsiz2 = (cidr >> 12)&0x000F; - at91sam7_info->cidr_nvpsiz = (cidr >> 8)&0x000F; - at91sam7_info->cidr_eproc = (cidr >> 5)&0x0007; - at91sam7_info->cidr_version = cidr&0x001F; - - at91sam7_info->target_name = target_name; - at91sam7_info->flashmode = 0; - at91sam7_info->ext_freq = ext_freq; - at91sam7_info->num_nvmbits = num_nvmbits; - at91sam7_info->num_nvmbits_on = 0; - at91sam7_info->pagesize = page_size; - at91sam7_info->pages_per_sector = pages_per_sector; - - /* calculate master clock frequency */ - at91sam7_read_clock_info(t_bank); - - /* no timming */ - at91sam7_set_flash_mode(t_bank, FMR_TIMING_NONE); - - /* check protect state */ - at91sam7_protect_check(t_bank); - } - - LOG_DEBUG("nvptyp: 0x%3.3x, arch: 0x%4.4x", at91sam7_info->cidr_nvptyp, at91sam7_info->cidr_arch); - - return ERROR_OK; -} - -static int at91sam7_erase_check(struct flash_bank *bank) -{ - struct target *target = bank->target; - uint16_t retval; - uint32_t blank; - uint16_t fast_check; - uint8_t *buffer; - uint16_t nSector; - uint16_t nByte; - - if (bank->target->state != TARGET_HALTED) - { - LOG_ERROR("Target not halted"); - return ERROR_TARGET_NOT_HALTED; - } - - /* Configure the flash controller timing */ - at91sam7_read_clock_info(bank); - at91sam7_set_flash_mode(bank, FMR_TIMING_FLASH); - - fast_check = 1; - for (nSector = 0; nSector < bank->num_sectors; nSector++) - { - retval = target_blank_check_memory(target, bank->base + bank->sectors[nSector].offset, - bank->sectors[nSector].size, &blank); - if (retval != ERROR_OK) - { - fast_check = 0; - break; - } - if (blank == 0xFF) - bank->sectors[nSector].is_erased = 1; - else - bank->sectors[nSector].is_erased = 0; - } - - if (fast_check) - { - return ERROR_OK; - } - - LOG_USER("Running slow fallback erase check - add working memory"); - - buffer = malloc(bank->sectors[0].size); - for (nSector = 0; nSector < bank->num_sectors; nSector++) - { - bank->sectors[nSector].is_erased = 1; - retval = target_read_memory(target, bank->base + bank->sectors[nSector].offset, 4, - bank->sectors[nSector].size/4, buffer); - if (retval != ERROR_OK) - return retval; - - for (nByte = 0; nByte < bank->sectors[nSector].size; nByte++) - { - if (buffer[nByte] != 0xFF) - { - bank->sectors[nSector].is_erased = 0; - break; - } - } - } - free(buffer); - - return ERROR_OK; -} - -static int at91sam7_protect_check(struct flash_bank *bank) -{ - uint8_t lock_pos, gpnvm_pos; - uint32_t status; - - struct at91sam7_flash_bank *at91sam7_info = bank->driver_priv; - - if (at91sam7_info->cidr == 0) - { - return ERROR_FLASH_BANK_NOT_PROBED; - } - if (bank->target->state != TARGET_HALTED) - { - LOG_ERROR("Target not halted"); - return ERROR_TARGET_NOT_HALTED; - } - - status = at91sam7_get_flash_status(bank->target, bank->bank_number); - at91sam7_info->lockbits = (status >> 16); - - at91sam7_info->num_lockbits_on = 0; - for (lock_pos = 0; lock_pos < bank->num_sectors; lock_pos++) - { - if (((status >> (16 + lock_pos))&(0x0001)) == 1) - { - at91sam7_info->num_lockbits_on++; - bank->sectors[lock_pos].is_protected = 1; - } - else - bank->sectors[lock_pos].is_protected = 0; - } - - /* GPNVM and SECURITY bits apply only for MC_FSR of EFC0 */ - status = at91sam7_get_flash_status(bank->target, 0); - - at91sam7_info->securitybit = (status >> 4)&0x01; - at91sam7_info->nvmbits = (status >> 8)&0xFF; - - at91sam7_info->num_nvmbits_on = 0; - for (gpnvm_pos = 0; gpnvm_pos < at91sam7_info->num_nvmbits; gpnvm_pos++) - { - if (((status >> (8 + gpnvm_pos))&(0x01)) == 1) - { - at91sam7_info->num_nvmbits_on++; - } - } - - return ERROR_OK; -} - -FLASH_BANK_COMMAND_HANDLER(at91sam7_flash_bank_command) -{ - struct flash_bank *t_bank = bank; - struct at91sam7_flash_bank *at91sam7_info; - struct target *target = t_bank->target; - - uint32_t base_address; - uint32_t bank_size; - uint32_t ext_freq = 0; - - int chip_width; - int bus_width; - int banks_num; - int num_sectors; - - uint16_t pages_per_sector; - uint16_t page_size; - uint16_t num_nvmbits; - - char *target_name; - - int bnk, sec; - - at91sam7_info = malloc(sizeof(struct at91sam7_flash_bank)); - t_bank->driver_priv = at91sam7_info; - - /* part wasn't probed for info yet */ - at91sam7_info->cidr = 0; - at91sam7_info->flashmode = 0; - at91sam7_info->ext_freq = 0; - at91sam7_info->flash_autodetection = 0; - - if (CMD_ARGC < 13) - { - at91sam7_info->flash_autodetection = 1; - return ERROR_OK; - } - - COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], base_address); - - COMMAND_PARSE_NUMBER(int, CMD_ARGV[3], chip_width); - COMMAND_PARSE_NUMBER(int, CMD_ARGV[4], bus_width); - - COMMAND_PARSE_NUMBER(int, CMD_ARGV[8], banks_num); - COMMAND_PARSE_NUMBER(int, CMD_ARGV[9], num_sectors); - COMMAND_PARSE_NUMBER(u16, CMD_ARGV[10], pages_per_sector); - COMMAND_PARSE_NUMBER(u16, CMD_ARGV[11], page_size); - COMMAND_PARSE_NUMBER(u16, CMD_ARGV[12], num_nvmbits); - - if (CMD_ARGC == 14) { - unsigned long freq; - COMMAND_PARSE_NUMBER(ulong, CMD_ARGV[13], freq); - ext_freq = freq * 1000; - at91sam7_info->ext_freq = ext_freq; - } - - if ((bus_width == 0) || (banks_num == 0) || (num_sectors == 0) || - (pages_per_sector == 0) || (page_size == 0) || (num_nvmbits == 0)) - { - at91sam7_info->flash_autodetection = 1; - return ERROR_OK; - } - - target_name = calloc(strlen(CMD_ARGV[7]) + 1, sizeof(char)); - strcpy(target_name, CMD_ARGV[7]); - - /* calculate bank size */ - bank_size = num_sectors * pages_per_sector * page_size; - - for (bnk = 0; bnk < banks_num; bnk++) - { - if (bnk > 0) - { - /* create a new bank element */ - struct flash_bank *fb = malloc(sizeof(struct flash_bank)); - fb->target = target; - fb->driver = bank->driver; - fb->driver_priv = malloc(sizeof(struct at91sam7_flash_bank)); - fb->next = NULL; - - /* link created bank in 'flash_banks' list and redirect t_bank */ - t_bank->next = fb; - t_bank = fb; - } - - t_bank->bank_number = bnk; - t_bank->base = base_address + bnk * bank_size; - t_bank->size = bank_size; - t_bank->chip_width = chip_width; - t_bank->bus_width = bus_width; - t_bank->num_sectors = num_sectors; - - /* allocate sectors */ - t_bank->sectors = malloc(num_sectors * sizeof(struct flash_sector)); - for (sec = 0; sec < num_sectors; sec++) - { - t_bank->sectors[sec].offset = sec * pages_per_sector * page_size; - t_bank->sectors[sec].size = pages_per_sector * page_size; - t_bank->sectors[sec].is_erased = -1; - t_bank->sectors[sec].is_protected = -1; - } - - at91sam7_info = t_bank->driver_priv; - - at91sam7_info->target_name = target_name; - at91sam7_info->flashmode = 0; - at91sam7_info->ext_freq = ext_freq; - at91sam7_info->num_nvmbits = num_nvmbits; - at91sam7_info->num_nvmbits_on = 0; - at91sam7_info->pagesize = page_size; - at91sam7_info->pages_per_sector = pages_per_sector; - } - - return ERROR_OK; -} - -static int at91sam7_erase(struct flash_bank *bank, int first, int last) -{ - struct at91sam7_flash_bank *at91sam7_info = bank->driver_priv; - int sec; - uint32_t nbytes, pos; - uint8_t *buffer; - uint8_t erase_all; - - if (at91sam7_info->cidr == 0) - { - return ERROR_FLASH_BANK_NOT_PROBED; - } - - if (bank->target->state != TARGET_HALTED) - { - LOG_ERROR("Target not halted"); - return ERROR_TARGET_NOT_HALTED; - } - - if ((first < 0) || (last < first) || (last >= bank->num_sectors)) - { - return ERROR_FLASH_SECTOR_INVALID; - } - - erase_all = 0; - if ((first == 0) && (last == (bank->num_sectors-1))) - { - erase_all = 1; - } - - /* Configure the flash controller timing */ - at91sam7_read_clock_info(bank); - at91sam7_set_flash_mode(bank, FMR_TIMING_FLASH); - - if (erase_all) - { - if (at91sam7_flash_command(bank, EA, 0) != ERROR_OK) - { - return ERROR_FLASH_OPERATION_FAILED; - } - } - else - { - /* allocate and clean buffer */ - nbytes = (last - first + 1) * bank->sectors[first].size; - buffer = malloc(nbytes * sizeof(uint8_t)); - for (pos = 0; pos < nbytes; pos++) - { - buffer[pos] = 0xFF; - } - - if (at91sam7_write(bank, buffer, bank->sectors[first].offset, nbytes) != ERROR_OK) - { - return ERROR_FLASH_OPERATION_FAILED; - } - - free(buffer); - } - - /* mark erased sectors */ - for (sec = first; sec <= last; sec++) - { - bank->sectors[sec].is_erased = 1; - } - - return ERROR_OK; -} - -static int at91sam7_protect(struct flash_bank *bank, int set, int first, int last) -{ - uint32_t cmd; - int sector; - uint32_t pagen; - - struct at91sam7_flash_bank *at91sam7_info = bank->driver_priv; - - if (at91sam7_info->cidr == 0) - { - return ERROR_FLASH_BANK_NOT_PROBED; - } - - if (bank->target->state != TARGET_HALTED) - { - LOG_ERROR("Target not halted"); - return ERROR_TARGET_NOT_HALTED; - } - - if ((first < 0) || (last < first) || (last >= bank->num_sectors)) - { - return ERROR_FLASH_SECTOR_INVALID; - } - - /* Configure the flash controller timing */ - at91sam7_read_clock_info(bank); - at91sam7_set_flash_mode(bank, FMR_TIMING_NVBITS); - - for (sector = first; sector <= last; sector++) - { - if (set) - cmd = SLB; - else - cmd = CLB; - - /* if we lock a page from one sector then entire sector will be locked, also, - * if we unlock a page from a locked sector, entire sector will be unlocked */ - pagen = sector * at91sam7_info->pages_per_sector; - - if (at91sam7_flash_command(bank, cmd, pagen) != ERROR_OK) - { - return ERROR_FLASH_OPERATION_FAILED; - } - } - - at91sam7_protect_check(bank); - - return ERROR_OK; -} - -static int at91sam7_write(struct flash_bank *bank, uint8_t *buffer, uint32_t offset, uint32_t count) -{ - int retval; - struct at91sam7_flash_bank *at91sam7_info = bank->driver_priv; - struct target *target = bank->target; - uint32_t dst_min_alignment, wcount, bytes_remaining = count; - uint32_t first_page, last_page, pagen, buffer_pos; - - if (at91sam7_info->cidr == 0) - { - return ERROR_FLASH_BANK_NOT_PROBED; - } - - if (bank->target->state != TARGET_HALTED) - { - LOG_ERROR("Target not halted"); - return ERROR_TARGET_NOT_HALTED; - } - - if (offset + count > bank->size) - return ERROR_FLASH_DST_OUT_OF_BANK; - - dst_min_alignment = at91sam7_info->pagesize; - - if (offset % dst_min_alignment) - { - LOG_WARNING("offset 0x%" PRIx32 " breaks required alignment 0x%" PRIx32 "", offset, dst_min_alignment); - return ERROR_FLASH_DST_BREAKS_ALIGNMENT; - } - - if (at91sam7_info->cidr_arch == 0) - return ERROR_FLASH_BANK_NOT_PROBED; - - first_page = offset/dst_min_alignment; - last_page = DIV_ROUND_UP(offset + count, dst_min_alignment); - - LOG_DEBUG("first_page: %i, last_page: %i, count %i", (int)first_page, (int)last_page, (int)count); - - /* Configure the flash controller timing */ - at91sam7_read_clock_info(bank); - at91sam7_set_flash_mode(bank, FMR_TIMING_FLASH); - - for (pagen = first_page; pagen < last_page; pagen++) - { - if (bytes_remaining < dst_min_alignment) - count = bytes_remaining; - else - count = dst_min_alignment; - bytes_remaining -= count; - - /* Write one block to the PageWriteBuffer */ - buffer_pos = (pagen-first_page)*dst_min_alignment; - wcount = DIV_ROUND_UP(count,4); - if ((retval = target_write_memory(target, bank->base + pagen*dst_min_alignment, 4, wcount, buffer + buffer_pos)) != ERROR_OK) - { - return retval; - } - - /* Send Write Page command to Flash Controller */ - if (at91sam7_flash_command(bank, WP, pagen) != ERROR_OK) - { - return ERROR_FLASH_OPERATION_FAILED; - } - LOG_DEBUG("Write flash bank:%i page number:%" PRIi32 "", bank->bank_number, pagen); - } - - return ERROR_OK; -} - -static int at91sam7_probe(struct flash_bank *bank) -{ - /* we can't probe on an at91sam7 - * if this is an at91sam7, it has the configured flash */ - int retval; - - if (bank->target->state != TARGET_HALTED) - { - LOG_ERROR("Target not halted"); - return ERROR_TARGET_NOT_HALTED; - } - - retval = at91sam7_read_part_info(bank); - if (retval != ERROR_OK) - return retval; - - return ERROR_OK; -} - -static int at91sam7_info(struct flash_bank *bank, char *buf, int buf_size) -{ - int printed; - struct at91sam7_flash_bank *at91sam7_info = bank->driver_priv; - - if (at91sam7_info->cidr == 0) - { - return ERROR_FLASH_BANK_NOT_PROBED; - } - - printed = snprintf(buf, buf_size, - "\n at91sam7 driver information: Chip is %s\n", - at91sam7_info->target_name); - - buf += printed; - buf_size -= printed; - - printed = snprintf(buf, - buf_size, - " Cidr: 0x%8.8" PRIx32 " | Arch: 0x%4.4x | Eproc: %s | Version: 0x%3.3x | Flashsize: 0x%8.8" PRIx32 "\n", - at91sam7_info->cidr, - at91sam7_info->cidr_arch, - EPROC[at91sam7_info->cidr_eproc], - at91sam7_info->cidr_version, - bank->size); - - buf += printed; - buf_size -= printed; - - printed = snprintf(buf, buf_size, - " Master clock (estimated): %u KHz | External clock: %u KHz\n", - (unsigned)(at91sam7_info->mck_freq / 1000), (unsigned)(at91sam7_info->ext_freq / 1000)); - - buf += printed; - buf_size -= printed; - - printed = snprintf(buf, buf_size, - " Pagesize: %i bytes | Lockbits(%i): %i 0x%4.4x | Pages in lock region: %i \n", - at91sam7_info->pagesize, bank->num_sectors, at91sam7_info->num_lockbits_on, - at91sam7_info->lockbits, at91sam7_info->pages_per_sector*at91sam7_info->num_lockbits_on); - - buf += printed; - buf_size -= printed; - - printed = snprintf(buf, buf_size, - " Securitybit: %i | Nvmbits(%i): %i 0x%1.1x\n", - at91sam7_info->securitybit, at91sam7_info->num_nvmbits, - at91sam7_info->num_nvmbits_on, at91sam7_info->nvmbits); - - buf += printed; - buf_size -= printed; - - return ERROR_OK; -} - -/* -* On AT91SAM7S: When the gpnvm bits are set with -* > at91sam7 gpnvm bitnr set -* the changes are not visible in the flash controller status register MC_FSR -* until the processor has been reset. -* On the Olimex board this requires a power cycle. -* Note that the AT91SAM7S has the following errata (doc6175.pdf sec 14.1.3): -* The maximum number of write/erase cycles for Non volatile Memory bits is 100. this includes -* Lock Bits (LOCKx), General Purpose NVM bits (GPNVMx) and the Security Bit. -*/ -COMMAND_HANDLER(at91sam7_handle_gpnvm_command) -{ - struct flash_bank *bank; - int bit; - uint8_t flashcmd; - uint32_t status; - struct at91sam7_flash_bank *at91sam7_info; - int retval; - - if (CMD_ARGC != 2) - { - command_print(CMD_CTX, "at91sam7 gpnvm "); - return ERROR_OK; - } - - bank = get_flash_bank_by_num_noprobe(0); - if (bank == NULL) - { - return ERROR_FLASH_BANK_INVALID; - } - if (strcmp(bank->driver->name, "at91sam7")) - { - command_print(CMD_CTX, "not an at91sam7 flash bank '%s'", CMD_ARGV[0]); - return ERROR_FLASH_BANK_INVALID; - } - if (bank->target->state != TARGET_HALTED) - { - LOG_ERROR("target has to be halted to perform flash operation"); - return ERROR_TARGET_NOT_HALTED; - } - - if (strcmp(CMD_ARGV[1], "set") == 0) - { - flashcmd = SGPB; - } - else if (strcmp(CMD_ARGV[1], "clear") == 0) - { - flashcmd = CGPB; - } - else - { - return ERROR_COMMAND_SYNTAX_ERROR; - } - - at91sam7_info = bank->driver_priv; - if (at91sam7_info->cidr == 0) - { - retval = at91sam7_read_part_info(bank); - if (retval != ERROR_OK) - { - return retval; - } - } - - COMMAND_PARSE_NUMBER(int, CMD_ARGV[0], bit); - if ((bit < 0) || (bit >= at91sam7_info->num_nvmbits)) - { - command_print(CMD_CTX, "gpnvm bit '#%s' is out of bounds for target %s", CMD_ARGV[0], at91sam7_info->target_name); - return ERROR_OK; - } - - /* Configure the flash controller timing */ - at91sam7_read_clock_info(bank); - at91sam7_set_flash_mode(bank, FMR_TIMING_NVBITS); - - if (at91sam7_flash_command(bank, flashcmd, bit) != ERROR_OK) - { - return ERROR_FLASH_OPERATION_FAILED; - } - - /* GPNVM and SECURITY bits apply only for MC_FSR of EFC0 */ - status = at91sam7_get_flash_status(bank->target, 0); - LOG_DEBUG("at91sam7_handle_gpnvm_command: cmd 0x%x, value %d, status 0x%" PRIx32 " \n", flashcmd, bit, status); - - /* check protect state */ - at91sam7_protect_check(bank); - - return ERROR_OK; -} - -static const struct command_registration at91sam7_exec_command_handlers[] = { - { - .name = "gpnvm", - .handler = &at91sam7_handle_gpnvm_command, - .mode = COMMAND_EXEC, - .usage = "gpnvm set | clear, " - "set or clear one gpnvm bit", - }, - COMMAND_REGISTRATION_DONE -}; -static const struct command_registration at91sam7_command_handlers[] = { - { - .name = "at91sam7", - .mode = COMMAND_ANY, - .help = "at91sam7 flash command group", - .chain = at91sam7_exec_command_handlers, - }, - COMMAND_REGISTRATION_DONE -}; - -struct flash_driver at91sam7_flash = { - .name = "at91sam7", - .commands = at91sam7_command_handlers, - .flash_bank_command = &at91sam7_flash_bank_command, - .erase = &at91sam7_erase, - .protect = &at91sam7_protect, - .write = &at91sam7_write, - .probe = &at91sam7_probe, - .auto_probe = &at91sam7_probe, - .erase_check = &at91sam7_erase_check, - .protect_check = &at91sam7_protect_check, - .info = &at91sam7_info, - }; -- cgit v1.2.3