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/aduc702x.c | 425 --------------------------------------------------- 1 file changed, 425 deletions(-) delete mode 100644 src/flash/aduc702x.c (limited to 'src/flash/aduc702x.c') diff --git a/src/flash/aduc702x.c b/src/flash/aduc702x.c deleted file mode 100644 index 643705ca..00000000 --- a/src/flash/aduc702x.c +++ /dev/null @@ -1,425 +0,0 @@ -/*************************************************************************** - * Copyright (C) 2008 by Kevin McGuire * - * Copyright (C) 2008 by Marcel Wijlaars * - * Copyright (C) 2009 by Michael Ashton * - * * - * 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 "armv4_5.h" -#include "binarybuffer.h" -#include "time_support.h" -#include "algorithm.h" - - -static int aduc702x_build_sector_list(struct flash_bank *bank); -static int aduc702x_check_flash_completion(struct target* target, unsigned int timeout_ms); -static int aduc702x_set_write_enable(struct target *target, int enable); - -#define ADUC702x_FLASH 0xfffff800 -#define ADUC702x_FLASH_FEESTA (0*4) -#define ADUC702x_FLASH_FEEMOD (1*4) -#define ADUC702x_FLASH_FEECON (2*4) -#define ADUC702x_FLASH_FEEDAT (3*4) -#define ADUC702x_FLASH_FEEADR (4*4) -#define ADUC702x_FLASH_FEESIGN (5*4) -#define ADUC702x_FLASH_FEEPRO (6*4) -#define ADUC702x_FLASH_FEEHIDE (7*4) - -struct aduc702x_flash_bank { - struct working_area *write_algorithm; -}; - -/* flash bank aduc702x 0 0 0 0 - * The ADC7019-28 devices all have the same flash layout */ -FLASH_BANK_COMMAND_HANDLER(aduc702x_flash_bank_command) -{ - struct aduc702x_flash_bank *nbank; - - nbank = malloc(sizeof(struct aduc702x_flash_bank)); - - bank->base = 0x80000; - bank->size = 0xF800; // top 4k not accessible - bank->driver_priv = nbank; - - aduc702x_build_sector_list(bank); - - return ERROR_OK; -} - -static int aduc702x_build_sector_list(struct flash_bank *bank) -{ - //aduc7026_struct flash_bank *aduc7026_info = bank->driver_priv; - - int i = 0; - uint32_t offset = 0; - - // sector size is 512 - bank->num_sectors = bank->size / 512; - 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 = 512; - offset += bank->sectors[i].size; - bank->sectors[i].is_erased = -1; - bank->sectors[i].is_protected = 0; - } - - return ERROR_OK; -} - -static int aduc702x_protect_check(struct flash_bank *bank) -{ - printf("aduc702x_protect_check not implemented yet.\n"); - return ERROR_OK; -} - -static int aduc702x_erase(struct flash_bank *bank, int first, int last) -{ - //int res; - int x; - int count; - //uint32_t v; - struct target *target = bank->target; - - aduc702x_set_write_enable(target, 1); - - /* mass erase */ - if (((first | last) == 0) || ((first == 0) && (last >= bank->num_sectors))) { - LOG_DEBUG("performing mass erase.\n"); - target_write_u16(target, ADUC702x_FLASH + ADUC702x_FLASH_FEEDAT, 0x3cff); - target_write_u16(target, ADUC702x_FLASH + ADUC702x_FLASH_FEEADR, 0xffc3); - target_write_u8(target, ADUC702x_FLASH + ADUC702x_FLASH_FEECON, 0x06); - - if (aduc702x_check_flash_completion(target, 3500) != ERROR_OK) - { - LOG_ERROR("mass erase failed\n"); - aduc702x_set_write_enable(target, 0); - return ERROR_FLASH_OPERATION_FAILED; - } - - LOG_DEBUG("mass erase successful.\n"); - return ERROR_OK; - } else { - unsigned long adr; - - count = last - first + 1; - for (x = 0; x < count; ++x) - { - adr = bank->base + ((first + x) * 512); - - target_write_u16(target, ADUC702x_FLASH + ADUC702x_FLASH_FEEADR, adr); - target_write_u8(target, ADUC702x_FLASH + ADUC702x_FLASH_FEECON, 0x05); - - if (aduc702x_check_flash_completion(target, 50) != ERROR_OK) - { - LOG_ERROR("failed to erase sector at address 0x%08lX\n", adr); - aduc702x_set_write_enable(target, 0); - return ERROR_FLASH_SECTOR_NOT_ERASED; - } - - LOG_DEBUG("erased sector at address 0x%08lX\n", adr); - } - } - - aduc702x_set_write_enable(target, 0); - - return ERROR_OK; -} - -static int aduc702x_protect(struct flash_bank *bank, int set, int first, int last) -{ - printf("aduc702x_protect not implemented yet.\n"); - return ERROR_FLASH_OPERATION_FAILED; -} - -/* If this fn returns ERROR_TARGET_RESOURCE_NOT_AVAILABLE, then the caller can fall - * back to another mechanism that does not require onboard RAM - * - * Caller should not check for other return values specifically - */ -static int aduc702x_write_block(struct flash_bank *bank, uint8_t *buffer, uint32_t offset, uint32_t count) -{ - struct aduc702x_flash_bank *aduc702x_info = bank->driver_priv; - struct target *target = bank->target; - uint32_t buffer_size = 7000; - struct working_area *source; - uint32_t address = bank->base + offset; - struct reg_param reg_params[6]; - struct armv4_5_algorithm armv4_5_info; - int retval = ERROR_OK; - - if (((count%2)!=0)||((offset%2)!=0)) - { - LOG_ERROR("write block must be multiple of two bytes in offset & length"); - return ERROR_FAIL; - } - - /* parameters: - - r0 - address of source data (absolute) - r1 - number of halfwords to be copied - r2 - start address in flash (offset from beginning of flash memory) - r3 - exit code - r4 - base address of flash controller (0xFFFFF800) - - registers: - - r5 - scratch - r6 - set to 2, used to write flash command - - */ - uint32_t aduc702x_flash_write_code[] = { - //<_start>: - 0xe3a05008, // mov r5, #8 ; 0x8 - 0xe5845004, // str r5, [r4, #4] - 0xe3a06002, // mov r6, #2 ; 0x2 - //: - 0xe1c421b0, // strh r2, [r4, #16] - 0xe0d050b2, // ldrh r5, [r0], #2 - 0xe1c450bc, // strh r5, [r4, #12] - 0xe5c46008, // strb r6, [r4, #8] - //: - 0xe1d430b0, // ldrh r3, [r4] - 0xe3130004, // tst r3, #4 ; 0x4 - 0x1afffffc, // bne 1001c - 0xe2822002, // add r2, r2, #2 ; 0x2 - 0xe2511001, // subs r1, r1, #1 ; 0x1 - 0x0a000001, // beq 1003c - 0xe3130001, // tst r3, #1 ; 0x1 - 0x1afffff3, // bne 1000c - //: - 0xeafffffe // b 1003c - }; - - /* flash write code */ - if (target_alloc_working_area(target, sizeof(aduc702x_flash_write_code), - &aduc702x_info->write_algorithm) != ERROR_OK) - { - LOG_WARNING("no working area available, can't do block memory writes"); - return ERROR_TARGET_RESOURCE_NOT_AVAILABLE; - }; - - retval=target_write_buffer(target, aduc702x_info->write_algorithm->address, - sizeof(aduc702x_flash_write_code), (uint8_t*)aduc702x_flash_write_code); - if (retval!=ERROR_OK) - { - return retval; - } - - /* memory buffer */ - while (target_alloc_working_area(target, buffer_size, &source) != ERROR_OK) - { - buffer_size /= 2; - if (buffer_size <= 256) - { - /* if we already allocated the writing code, but failed to get a buffer, free the algorithm */ - if (aduc702x_info->write_algorithm) - target_free_working_area(target, aduc702x_info->write_algorithm); - - LOG_WARNING("no large enough working area available, can't do block memory writes"); - return ERROR_TARGET_RESOURCE_NOT_AVAILABLE; - } - } - - 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(®_params[0], "r0", 32, PARAM_OUT); - init_reg_param(®_params[1], "r1", 32, PARAM_OUT); - init_reg_param(®_params[2], "r2", 32, PARAM_OUT); - init_reg_param(®_params[3], "r3", 32, PARAM_IN); - init_reg_param(®_params[4], "r4", 32, PARAM_OUT); - - while (count > 0) - { - uint32_t thisrun_count = (count > buffer_size) ? buffer_size : count; - - retval=target_write_buffer(target, source->address, thisrun_count, buffer); - if (retval!=ERROR_OK) - { - break; - } - - buf_set_u32(reg_params[0].value, 0, 32, source->address); - buf_set_u32(reg_params[1].value, 0, 32, thisrun_count/2); - buf_set_u32(reg_params[2].value, 0, 32, address); - buf_set_u32(reg_params[4].value, 0, 32, 0xFFFFF800); - - if ((retval = target_run_algorithm(target, 0, NULL, 5, - reg_params, aduc702x_info->write_algorithm->address, - aduc702x_info->write_algorithm->address + sizeof(aduc702x_flash_write_code) - 4, - 10000, &armv4_5_info)) != ERROR_OK) - { - LOG_ERROR("error executing aduc702x flash write algorithm"); - break; - } - - if ((buf_get_u32(reg_params[3].value, 0, 32) & 1) != 1) - { - /* FIX!!!! what does this mean??? replace w/sensible error message */ - LOG_ERROR("aduc702x detected error writing flash"); - retval = ERROR_FAIL; - break; - } - - buffer += thisrun_count; - address += thisrun_count; - count -= thisrun_count; - } - - target_free_working_area(target, source); - target_free_working_area(target, aduc702x_info->write_algorithm); - - destroy_reg_param(®_params[0]); - destroy_reg_param(®_params[1]); - destroy_reg_param(®_params[2]); - destroy_reg_param(®_params[3]); - destroy_reg_param(®_params[4]); - - return retval; -} - -/* All-JTAG, single-access method. Very slow. Used only if there is no - * working area available. */ -static int aduc702x_write_single(struct flash_bank *bank, uint8_t *buffer, uint32_t offset, uint32_t count) -{ - uint32_t x; - uint8_t b; - struct target *target = bank->target; - - aduc702x_set_write_enable(target, 1); - - for (x = 0; x < count; x += 2) { - // FEEADR = address - target_write_u16(target, ADUC702x_FLASH + ADUC702x_FLASH_FEEADR, offset + x); - - // set up data - if ((x + 1) == count) - { - // last byte - target_read_u8(target, offset + x + 1, &b); - } - else - b = buffer[x + 1]; - - target_write_u16(target, ADUC702x_FLASH + ADUC702x_FLASH_FEEDAT, buffer[x] | (b << 8)); - - // do single-write command - target_write_u8(target, ADUC702x_FLASH + ADUC702x_FLASH_FEECON, 0x02); - - if (aduc702x_check_flash_completion(target, 1) != ERROR_OK) - { - LOG_ERROR("single write failed for address 0x%08lX\n", (unsigned long)(offset + x)); - aduc702x_set_write_enable(target, 0); - return ERROR_FLASH_OPERATION_FAILED; - } - - } - LOG_DEBUG("wrote %d bytes at address 0x%08lX\n", (int)count, (unsigned long)(offset + x)); - - aduc702x_set_write_enable(target, 0); - - return ERROR_OK; -} - -int aduc702x_write(struct flash_bank *bank, uint8_t *buffer, uint32_t offset, uint32_t count) -{ - int retval; - - /* try using a block write */ - if ((retval = aduc702x_write_block(bank, buffer, offset, count)) != ERROR_OK) - { - if (retval == ERROR_TARGET_RESOURCE_NOT_AVAILABLE) - { - /* if block write failed (no sufficient working area), - * use normal (slow) JTAG method */ - LOG_WARNING("couldn't use block writes, falling back to single memory accesses"); - - if ((retval = aduc702x_write_single(bank, buffer, offset, count)) != ERROR_OK) - { - LOG_ERROR("slow write failed"); - return ERROR_FLASH_OPERATION_FAILED; - } - } - } - - return retval; -} - -static int aduc702x_probe(struct flash_bank *bank) -{ - return ERROR_OK; -} - -static int aduc702x_info(struct flash_bank *bank, char *buf, int buf_size) -{ - snprintf(buf, buf_size, "aduc702x flash driver info"); - return ERROR_OK; -} - -/* sets FEEMOD bit 3 - * enable = 1 enables writes & erases, 0 disables them */ -static int aduc702x_set_write_enable(struct target *target, int enable) -{ - // don't bother to preserve int enable bit here - target_write_u16(target, ADUC702x_FLASH + ADUC702x_FLASH_FEEMOD, enable ? 8 : 0); - - return ERROR_OK; -} - -/* wait up to timeout_ms for controller to not be busy, - * then check whether the command passed or failed. - * - * this function sleeps 1ms between checks (after the first one), - * so in some cases may slow things down without a usleep after the first read */ -static int aduc702x_check_flash_completion(struct target* target, unsigned int timeout_ms) -{ - uint8_t v = 4; - - long long endtime = timeval_ms() + timeout_ms; - while (1) { - target_read_u8(target, ADUC702x_FLASH + ADUC702x_FLASH_FEESTA, &v); - if ((v & 4) == 0) break; - alive_sleep(1); - if (timeval_ms() >= endtime) break; - } - - if (v & 2) return ERROR_FAIL; - // if a command is ignored, both the success and fail bits may be 0 - else if ((v & 3) == 0) return ERROR_FAIL; - else return ERROR_OK; -} - -struct flash_driver aduc702x_flash = { - .name = "aduc702x", - .flash_bank_command = &aduc702x_flash_bank_command, - .erase = &aduc702x_erase, - .protect = &aduc702x_protect, - .write = &aduc702x_write, - .probe = &aduc702x_probe, - .auto_probe = &aduc702x_probe, - .erase_check = &default_flash_blank_check, - .protect_check = &aduc702x_protect_check, - .info = &aduc702x_info - }; -- cgit v1.2.3