arm_nandio.c \
nand_ecc.c \
nand_ecc_kw.c \
- nand.c \
mflash.c
libflash_la_LIBADD = \
+++ /dev/null
-/***************************************************************************
- * Copyright (C) 2007 by Dominic Rath *
- * Dominic.Rath@gmx.de *
- * *
- * Partially based on drivers/mtd/nand_ids.c from Linux. *
- * Copyright (C) 2002 Thomas Gleixner <tglx@linutronix.de> *
- * *
- * 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 "nand.h"
-#include "common.h"
-#include <helper/time_support.h>
-#include <helper/fileio.h>
-
-static int nand_read_page(struct nand_device *nand, uint32_t page, uint8_t *data, uint32_t data_size, uint8_t *oob, uint32_t oob_size);
-//static int nand_read_plain(struct nand_device *nand, uint32_t address, uint8_t *data, uint32_t data_size);
-
-static int nand_write_page(struct nand_device *nand, uint32_t page, uint8_t *data, uint32_t data_size, uint8_t *oob, uint32_t oob_size);
-
-/* configured NAND devices and NAND Flash command handler */
-static struct nand_device *nand_devices = NULL;
-
-/* Chip ID list
- *
- * Name, ID code, pagesize, chipsize in MegaByte, eraseblock size,
- * options
- *
- * Pagesize; 0, 256, 512
- * 0 get this information from the extended chip ID
- * 256 256 Byte page size
- * 512 512 Byte page size
- */
-static struct nand_info nand_flash_ids[] =
-{
- /* start "museum" IDs */
- {"NAND 1MiB 5V 8-bit", 0x6e, 256, 1, 0x1000, 0},
- {"NAND 2MiB 5V 8-bit", 0x64, 256, 2, 0x1000, 0},
- {"NAND 4MiB 5V 8-bit", 0x6b, 512, 4, 0x2000, 0},
- {"NAND 1MiB 3,3V 8-bit", 0xe8, 256, 1, 0x1000, 0},
- {"NAND 1MiB 3,3V 8-bit", 0xec, 256, 1, 0x1000, 0},
- {"NAND 2MiB 3,3V 8-bit", 0xea, 256, 2, 0x1000, 0},
- {"NAND 4MiB 3,3V 8-bit", 0xd5, 512, 4, 0x2000, 0},
- {"NAND 4MiB 3,3V 8-bit", 0xe3, 512, 4, 0x2000, 0},
- {"NAND 4MiB 3,3V 8-bit", 0xe5, 512, 4, 0x2000, 0},
- {"NAND 8MiB 3,3V 8-bit", 0xd6, 512, 8, 0x2000, 0},
-
- {"NAND 8MiB 1,8V 8-bit", 0x39, 512, 8, 0x2000, 0},
- {"NAND 8MiB 3,3V 8-bit", 0xe6, 512, 8, 0x2000, 0},
- {"NAND 8MiB 1,8V 16-bit", 0x49, 512, 8, 0x2000, NAND_BUSWIDTH_16},
- {"NAND 8MiB 3,3V 16-bit", 0x59, 512, 8, 0x2000, NAND_BUSWIDTH_16},
- /* end "museum" IDs */
-
- {"NAND 16MiB 1,8V 8-bit", 0x33, 512, 16, 0x4000, 0},
- {"NAND 16MiB 3,3V 8-bit", 0x73, 512, 16, 0x4000, 0},
- {"NAND 16MiB 1,8V 16-bit", 0x43, 512, 16, 0x4000, NAND_BUSWIDTH_16},
- {"NAND 16MiB 3,3V 16-bit", 0x53, 512, 16, 0x4000, NAND_BUSWIDTH_16},
-
- {"NAND 32MiB 1,8V 8-bit", 0x35, 512, 32, 0x4000, 0},
- {"NAND 32MiB 3,3V 8-bit", 0x75, 512, 32, 0x4000, 0},
- {"NAND 32MiB 1,8V 16-bit", 0x45, 512, 32, 0x4000, NAND_BUSWIDTH_16},
- {"NAND 32MiB 3,3V 16-bit", 0x55, 512, 32, 0x4000, NAND_BUSWIDTH_16},
-
- {"NAND 64MiB 1,8V 8-bit", 0x36, 512, 64, 0x4000, 0},
- {"NAND 64MiB 3,3V 8-bit", 0x76, 512, 64, 0x4000, 0},
- {"NAND 64MiB 1,8V 16-bit", 0x46, 512, 64, 0x4000, NAND_BUSWIDTH_16},
- {"NAND 64MiB 3,3V 16-bit", 0x56, 512, 64, 0x4000, NAND_BUSWIDTH_16},
-
- {"NAND 128MiB 1,8V 8-bit", 0x78, 512, 128, 0x4000, 0},
- {"NAND 128MiB 1,8V 8-bit", 0x39, 512, 128, 0x4000, 0},
- {"NAND 128MiB 3,3V 8-bit", 0x79, 512, 128, 0x4000, 0},
- {"NAND 128MiB 1,8V 16-bit", 0x72, 512, 128, 0x4000, NAND_BUSWIDTH_16},
- {"NAND 128MiB 1,8V 16-bit", 0x49, 512, 128, 0x4000, NAND_BUSWIDTH_16},
- {"NAND 128MiB 3,3V 16-bit", 0x74, 512, 128, 0x4000, NAND_BUSWIDTH_16},
- {"NAND 128MiB 3,3V 16-bit", 0x59, 512, 128, 0x4000, NAND_BUSWIDTH_16},
-
- {"NAND 256MiB 3,3V 8-bit", 0x71, 512, 256, 0x4000, 0},
-
- {"NAND 64MiB 1,8V 8-bit", 0xA2, 0, 64, 0, LP_OPTIONS},
- {"NAND 64MiB 3,3V 8-bit", 0xF2, 0, 64, 0, LP_OPTIONS},
- {"NAND 64MiB 1,8V 16-bit", 0xB2, 0, 64, 0, LP_OPTIONS16},
- {"NAND 64MiB 3,3V 16-bit", 0xC2, 0, 64, 0, LP_OPTIONS16},
-
- {"NAND 128MiB 1,8V 8-bit", 0xA1, 0, 128, 0, LP_OPTIONS},
- {"NAND 128MiB 3,3V 8-bit", 0xF1, 0, 128, 0, LP_OPTIONS},
- {"NAND 128MiB 1,8V 16-bit", 0xB1, 0, 128, 0, LP_OPTIONS16},
- {"NAND 128MiB 3,3V 16-bit", 0xC1, 0, 128, 0, LP_OPTIONS16},
-
- {"NAND 256MiB 1,8V 8-bit", 0xAA, 0, 256, 0, LP_OPTIONS},
- {"NAND 256MiB 3,3V 8-bit", 0xDA, 0, 256, 0, LP_OPTIONS},
- {"NAND 256MiB 1,8V 16-bit", 0xBA, 0, 256, 0, LP_OPTIONS16},
- {"NAND 256MiB 3,3V 16-bit", 0xCA, 0, 256, 0, LP_OPTIONS16},
-
- {"NAND 512MiB 1,8V 8-bit", 0xAC, 0, 512, 0, LP_OPTIONS},
- {"NAND 512MiB 3,3V 8-bit", 0xDC, 0, 512, 0, LP_OPTIONS},
- {"NAND 512MiB 1,8V 16-bit", 0xBC, 0, 512, 0, LP_OPTIONS16},
- {"NAND 512MiB 3,3V 16-bit", 0xCC, 0, 512, 0, LP_OPTIONS16},
-
- {"NAND 1GiB 1,8V 8-bit", 0xA3, 0, 1024, 0, LP_OPTIONS},
- {"NAND 1GiB 3,3V 8-bit", 0xD3, 0, 1024, 0, LP_OPTIONS},
- {"NAND 1GiB 1,8V 16-bit", 0xB3, 0, 1024, 0, LP_OPTIONS16},
- {"NAND 1GiB 3,3V 16-bit", 0xC3, 0, 1024, 0, LP_OPTIONS16},
-
- {"NAND 2GiB 1,8V 8-bit", 0xA5, 0, 2048, 0, LP_OPTIONS},
- {"NAND 2GiB 3,3V 8-bit", 0xD5, 0, 2048, 0, LP_OPTIONS},
- {"NAND 2GiB 1,8V 16-bit", 0xB5, 0, 2048, 0, LP_OPTIONS16},
- {"NAND 2GiB 3,3V 16-bit", 0xC5, 0, 2048, 0, LP_OPTIONS16},
-
- {NULL, 0, 0, 0, 0, 0 }
-};
-
-/* Manufacturer ID list
- */
-static struct nand_manufacturer nand_manuf_ids[] =
-{
- {0x0, "unknown"},
- {NAND_MFR_TOSHIBA, "Toshiba"},
- {NAND_MFR_SAMSUNG, "Samsung"},
- {NAND_MFR_FUJITSU, "Fujitsu"},
- {NAND_MFR_NATIONAL, "National"},
- {NAND_MFR_RENESAS, "Renesas"},
- {NAND_MFR_STMICRO, "ST Micro"},
- {NAND_MFR_HYNIX, "Hynix"},
- {NAND_MFR_MICRON, "Micron"},
- {0x0, NULL},
-};
-
-/*
- * Define default oob placement schemes for large and small page devices
- */
-
-#if 0
-static struct nand_ecclayout nand_oob_8 = {
- .eccbytes = 3,
- .eccpos = {0, 1, 2},
- .oobfree = {
- {.offset = 3,
- .length = 2},
- {.offset = 6,
- .length = 2}}
-};
-#endif
-
-static struct nand_ecclayout nand_oob_16 = {
- .eccbytes = 6,
- .eccpos = {0, 1, 2, 3, 6, 7},
- .oobfree = {
- {.offset = 8,
- . length = 8}}
-};
-
-static struct nand_ecclayout nand_oob_64 = {
- .eccbytes = 24,
- .eccpos = {
- 40, 41, 42, 43, 44, 45, 46, 47,
- 48, 49, 50, 51, 52, 53, 54, 55,
- 56, 57, 58, 59, 60, 61, 62, 63},
- .oobfree = {
- {.offset = 2,
- .length = 38}}
-};
-
-int nand_list_walker(struct nand_flash_controller *c, void *x)
-{
- struct command_context *cmd_ctx = (struct command_context *)x;
- command_print(cmd_ctx, " %s", c->name);
- return ERROR_OK;
-}
-COMMAND_HANDLER(handle_nand_list_drivers)
-{
- command_print(CMD_CTX, "Available NAND flash controller drivers:");
- return nand_driver_walk(&nand_list_walker, CMD_CTX);
-}
-
-static COMMAND_HELPER(create_nand_device, const char *bank_name,
- struct nand_flash_controller *controller)
-{
- if (NULL != controller->commands)
- {
- int retval = register_commands(CMD_CTX, NULL,
- controller->commands);
- if (ERROR_OK != retval)
- return retval;
- }
- struct nand_device *c = malloc(sizeof(struct nand_device));
-
- c->name = strdup(bank_name);
- c->controller = controller;
- c->controller_priv = NULL;
- c->manufacturer = NULL;
- c->device = NULL;
- c->bus_width = 0;
- c->address_cycles = 0;
- c->page_size = 0;
- c->use_raw = 0;
- c->next = NULL;
-
- int retval = CALL_COMMAND_HANDLER(controller->nand_device_command, c);
- if (ERROR_OK != retval)
- {
- LOG_ERROR("'%s' driver rejected nand flash", controller->name);
- free(c);
- return ERROR_OK;
- }
-
- if (nand_devices) {
- struct nand_device *p = nand_devices;
- while (p && p->next) p = p->next;
- p->next = c;
- } else
- nand_devices = c;
-
- return ERROR_OK;
-}
-
-COMMAND_HANDLER(handle_nand_device_command)
-{
- if (CMD_ARGC < 1)
- {
- LOG_ERROR("incomplete nand device configuration");
- return ERROR_FLASH_BANK_INVALID;
- }
-
- // save name and increment (for compatibility) with drivers
- const char *bank_name = *CMD_ARGV++;
- CMD_ARGC--;
-
- const char *driver_name = CMD_ARGV[0];
- struct nand_flash_controller *controller;
- controller = nand_driver_find_by_name(CMD_ARGV[0]);
- if (NULL == controller)
- {
- LOG_ERROR("No valid NAND flash driver found (%s)", driver_name);
- return CALL_COMMAND_HANDLER(handle_nand_list_drivers);
- }
- return CALL_COMMAND_HANDLER(create_nand_device, bank_name, controller);
-}
-
-
-COMMAND_HANDLER(handle_nand_init_command);
-
-static const struct command_registration nand_config_command_handlers[] = {
- {
- .name = "device",
- .handler = &handle_nand_device_command,
- .mode = COMMAND_CONFIG,
- .help = "defines a new NAND bank",
- },
- {
- .name = "drivers",
- .handler = &handle_nand_list_drivers,
- .mode = COMMAND_ANY,
- .help = "lists available NAND drivers",
- },
- {
- .name = "init",
- .mode = COMMAND_CONFIG,
- .handler = &handle_nand_init_command,
- .help = "initialize NAND devices",
- },
- COMMAND_REGISTRATION_DONE
-};
-static const struct command_registration nand_command_handlers[] = {
- {
- .name = "nand",
- .mode = COMMAND_ANY,
- .help = "NAND flash command group",
- .chain = nand_config_command_handlers,
- },
- COMMAND_REGISTRATION_DONE
-};
-
-int nand_register_commands(struct command_context *cmd_ctx)
-{
- return register_commands(cmd_ctx, NULL, nand_command_handlers);
-}
-
-struct nand_device *get_nand_device_by_name(const char *name)
-{
- unsigned requested = get_flash_name_index(name);
- unsigned found = 0;
-
- struct nand_device *nand;
- for (nand = nand_devices; NULL != nand; nand = nand->next)
- {
- if (strcmp(nand->name, name) == 0)
- return nand;
- if (!flash_driver_name_matches(nand->controller->name, name))
- continue;
- if (++found < requested)
- continue;
- return nand;
- }
- return NULL;
-}
-
-struct nand_device *get_nand_device_by_num(int num)
-{
- struct nand_device *p;
- int i = 0;
-
- for (p = nand_devices; p; p = p->next)
- {
- if (i++ == num)
- {
- return p;
- }
- }
-
- return NULL;
-}
-
-COMMAND_HELPER(nand_command_get_device, unsigned name_index,
- struct nand_device **nand)
-{
- const char *str = CMD_ARGV[name_index];
- *nand = get_nand_device_by_name(str);
- if (*nand)
- return ERROR_OK;
-
- unsigned num;
- COMMAND_PARSE_NUMBER(uint, str, num);
- *nand = get_nand_device_by_num(num);
- if (!*nand) {
- command_print(CMD_CTX, "NAND flash device '%s' not found", str);
- return ERROR_INVALID_ARGUMENTS;
- }
- return ERROR_OK;
-}
-
-static int nand_build_bbt(struct nand_device *nand, int first, int last)
-{
- uint32_t page = 0x0;
- int i;
- uint8_t oob[6];
-
- if ((first < 0) || (first >= nand->num_blocks))
- first = 0;
-
- if ((last >= nand->num_blocks) || (last == -1))
- last = nand->num_blocks - 1;
-
- for (i = first; i < last; i++)
- {
- nand_read_page(nand, page, NULL, 0, oob, 6);
-
- if (((nand->device->options & NAND_BUSWIDTH_16) && ((oob[0] & oob[1]) != 0xff))
- || (((nand->page_size == 512) && (oob[5] != 0xff)) ||
- ((nand->page_size == 2048) && (oob[0] != 0xff))))
- {
- LOG_WARNING("bad block: %i", i);
- nand->blocks[i].is_bad = 1;
- }
- else
- {
- nand->blocks[i].is_bad = 0;
- }
-
- page += (nand->erase_size / nand->page_size);
- }
-
- return ERROR_OK;
-}
-
-int nand_read_status(struct nand_device *nand, uint8_t *status)
-{
- if (!nand->device)
- return ERROR_NAND_DEVICE_NOT_PROBED;
-
- /* Send read status command */
- nand->controller->command(nand, NAND_CMD_STATUS);
-
- alive_sleep(1);
-
- /* read status */
- if (nand->device->options & NAND_BUSWIDTH_16)
- {
- uint16_t data;
- nand->controller->read_data(nand, &data);
- *status = data & 0xff;
- }
- else
- {
- nand->controller->read_data(nand, status);
- }
-
- return ERROR_OK;
-}
-
-static int nand_poll_ready(struct nand_device *nand, int timeout)
-{
- uint8_t status;
-
- nand->controller->command(nand, NAND_CMD_STATUS);
- do {
- if (nand->device->options & NAND_BUSWIDTH_16) {
- uint16_t data;
- nand->controller->read_data(nand, &data);
- status = data & 0xff;
- } else {
- nand->controller->read_data(nand, &status);
- }
- if (status & NAND_STATUS_READY)
- break;
- alive_sleep(1);
- } while (timeout--);
-
- return (status & NAND_STATUS_READY) != 0;
-}
-
-int nand_probe(struct nand_device *nand)
-{
- uint8_t manufacturer_id, device_id;
- uint8_t id_buff[6];
- int retval;
- int i;
-
- /* clear device data */
- nand->device = NULL;
- nand->manufacturer = NULL;
-
- /* clear device parameters */
- nand->bus_width = 0;
- nand->address_cycles = 0;
- nand->page_size = 0;
- nand->erase_size = 0;
-
- /* initialize controller (device parameters are zero, use controller default) */
- if ((retval = nand->controller->init(nand) != ERROR_OK))
- {
- switch (retval)
- {
- case ERROR_NAND_OPERATION_FAILED:
- LOG_DEBUG("controller initialization failed");
- return ERROR_NAND_OPERATION_FAILED;
- case ERROR_NAND_OPERATION_NOT_SUPPORTED:
- LOG_ERROR("BUG: controller reported that it doesn't support default parameters");
- return ERROR_NAND_OPERATION_FAILED;
- default:
- LOG_ERROR("BUG: unknown controller initialization failure");
- return ERROR_NAND_OPERATION_FAILED;
- }
- }
-
- nand->controller->command(nand, NAND_CMD_RESET);
- nand->controller->reset(nand);
-
- nand->controller->command(nand, NAND_CMD_READID);
- nand->controller->address(nand, 0x0);
-
- if (nand->bus_width == 8)
- {
- nand->controller->read_data(nand, &manufacturer_id);
- nand->controller->read_data(nand, &device_id);
- }
- else
- {
- uint16_t data_buf;
- nand->controller->read_data(nand, &data_buf);
- manufacturer_id = data_buf & 0xff;
- nand->controller->read_data(nand, &data_buf);
- device_id = data_buf & 0xff;
- }
-
- for (i = 0; nand_flash_ids[i].name; i++)
- {
- if (nand_flash_ids[i].id == device_id)
- {
- nand->device = &nand_flash_ids[i];
- break;
- }
- }
-
- for (i = 0; nand_manuf_ids[i].name; i++)
- {
- if (nand_manuf_ids[i].id == manufacturer_id)
- {
- nand->manufacturer = &nand_manuf_ids[i];
- break;
- }
- }
-
- if (!nand->manufacturer)
- {
- nand->manufacturer = &nand_manuf_ids[0];
- nand->manufacturer->id = manufacturer_id;
- }
-
- if (!nand->device)
- {
- LOG_ERROR("unknown NAND flash device found, manufacturer id: 0x%2.2x device id: 0x%2.2x",
- manufacturer_id, device_id);
- return ERROR_NAND_OPERATION_FAILED;
- }
-
- LOG_DEBUG("found %s (%s)", nand->device->name, nand->manufacturer->name);
-
- /* initialize device parameters */
-
- /* bus width */
- if (nand->device->options & NAND_BUSWIDTH_16)
- nand->bus_width = 16;
- else
- nand->bus_width = 8;
-
- /* Do we need extended device probe information? */
- if (nand->device->page_size == 0 ||
- nand->device->erase_size == 0)
- {
- if (nand->bus_width == 8)
- {
- nand->controller->read_data(nand, id_buff + 3);
- nand->controller->read_data(nand, id_buff + 4);
- nand->controller->read_data(nand, id_buff + 5);
- }
- else
- {
- uint16_t data_buf;
-
- nand->controller->read_data(nand, &data_buf);
- id_buff[3] = data_buf;
-
- nand->controller->read_data(nand, &data_buf);
- id_buff[4] = data_buf;
-
- nand->controller->read_data(nand, &data_buf);
- id_buff[5] = data_buf >> 8;
- }
- }
-
- /* page size */
- if (nand->device->page_size == 0)
- {
- nand->page_size = 1 << (10 + (id_buff[4] & 3));
- }
- else if (nand->device->page_size == 256)
- {
- LOG_ERROR("NAND flashes with 256 byte pagesize are not supported");
- return ERROR_NAND_OPERATION_FAILED;
- }
- else
- {
- nand->page_size = nand->device->page_size;
- }
-
- /* number of address cycles */
- if (nand->page_size <= 512)
- {
- /* small page devices */
- if (nand->device->chip_size <= 32)
- nand->address_cycles = 3;
- else if (nand->device->chip_size <= 8*1024)
- nand->address_cycles = 4;
- else
- {
- LOG_ERROR("BUG: small page NAND device with more than 8 GiB encountered");
- nand->address_cycles = 5;
- }
- }
- else
- {
- /* large page devices */
- if (nand->device->chip_size <= 128)
- nand->address_cycles = 4;
- else if (nand->device->chip_size <= 32*1024)
- nand->address_cycles = 5;
- else
- {
- LOG_ERROR("BUG: large page NAND device with more than 32 GiB encountered");
- nand->address_cycles = 6;
- }
- }
-
- /* erase size */
- if (nand->device->erase_size == 0)
- {
- switch ((id_buff[4] >> 4) & 3) {
- case 0:
- nand->erase_size = 64 << 10;
- break;
- case 1:
- nand->erase_size = 128 << 10;
- break;
- case 2:
- nand->erase_size = 256 << 10;
- break;
- case 3:
- nand->erase_size =512 << 10;
- break;
- }
- }
- else
- {
- nand->erase_size = nand->device->erase_size;
- }
-
- /* initialize controller, but leave parameters at the controllers default */
- if ((retval = nand->controller->init(nand) != ERROR_OK))
- {
- switch (retval)
- {
- case ERROR_NAND_OPERATION_FAILED:
- LOG_DEBUG("controller initialization failed");
- return ERROR_NAND_OPERATION_FAILED;
- case ERROR_NAND_OPERATION_NOT_SUPPORTED:
- LOG_ERROR("controller doesn't support requested parameters (buswidth: %i, address cycles: %i, page size: %i)",
- nand->bus_width, nand->address_cycles, nand->page_size);
- return ERROR_NAND_OPERATION_FAILED;
- default:
- LOG_ERROR("BUG: unknown controller initialization failure");
- return ERROR_NAND_OPERATION_FAILED;
- }
- }
-
- nand->num_blocks = (nand->device->chip_size * 1024) / (nand->erase_size / 1024);
- nand->blocks = malloc(sizeof(struct nand_block) * nand->num_blocks);
-
- for (i = 0; i < nand->num_blocks; i++)
- {
- nand->blocks[i].size = nand->erase_size;
- nand->blocks[i].offset = i * nand->erase_size;
- nand->blocks[i].is_erased = -1;
- nand->blocks[i].is_bad = -1;
- }
-
- return ERROR_OK;
-}
-
-static int nand_erase(struct nand_device *nand, int first_block, int last_block)
-{
- int i;
- uint32_t page;
- uint8_t status;
- int retval;
-
- if (!nand->device)
- return ERROR_NAND_DEVICE_NOT_PROBED;
-
- if ((first_block < 0) || (last_block > nand->num_blocks))
- return ERROR_INVALID_ARGUMENTS;
-
- /* make sure we know if a block is bad before erasing it */
- for (i = first_block; i <= last_block; i++)
- {
- if (nand->blocks[i].is_bad == -1)
- {
- nand_build_bbt(nand, i, last_block);
- break;
- }
- }
-
- for (i = first_block; i <= last_block; i++)
- {
- /* Send erase setup command */
- nand->controller->command(nand, NAND_CMD_ERASE1);
-
- page = i * (nand->erase_size / nand->page_size);
-
- /* Send page address */
- if (nand->page_size <= 512)
- {
- /* row */
- nand->controller->address(nand, page & 0xff);
- nand->controller->address(nand, (page >> 8) & 0xff);
-
- /* 3rd cycle only on devices with more than 32 MiB */
- if (nand->address_cycles >= 4)
- nand->controller->address(nand, (page >> 16) & 0xff);
-
- /* 4th cycle only on devices with more than 8 GiB */
- if (nand->address_cycles >= 5)
- nand->controller->address(nand, (page >> 24) & 0xff);
- }
- else
- {
- /* row */
- nand->controller->address(nand, page & 0xff);
- nand->controller->address(nand, (page >> 8) & 0xff);
-
- /* 3rd cycle only on devices with more than 128 MiB */
- if (nand->address_cycles >= 5)
- nand->controller->address(nand, (page >> 16) & 0xff);
- }
-
- /* Send erase confirm command */
- nand->controller->command(nand, NAND_CMD_ERASE2);
-
- retval = nand->controller->nand_ready ?
- nand->controller->nand_ready(nand, 1000) :
- nand_poll_ready(nand, 1000);
- if (!retval) {
- LOG_ERROR("timeout waiting for NAND flash block erase to complete");
- return ERROR_NAND_OPERATION_TIMEOUT;
- }
-
- if ((retval = nand_read_status(nand, &status)) != ERROR_OK)
- {
- LOG_ERROR("couldn't read status");
- return ERROR_NAND_OPERATION_FAILED;
- }
-
- if (status & 0x1)
- {
- LOG_ERROR("didn't erase %sblock %d; status: 0x%2.2x",
- (nand->blocks[i].is_bad == 1)
- ? "bad " : "",
- i, status);
- /* continue; other blocks might still be erasable */
- }
-
- nand->blocks[i].is_erased = 1;
- }
-
- return ERROR_OK;
-}
-
-#if 0
-static int nand_read_plain(struct nand_device *nand, uint32_t address, uint8_t *data, uint32_t data_size)
-{
- uint8_t *page;
-
- if (!nand->device)
- return ERROR_NAND_DEVICE_NOT_PROBED;
-
- if (address % nand->page_size)
- {
- LOG_ERROR("reads need to be page aligned");
- return ERROR_NAND_OPERATION_FAILED;
- }
-
- page = malloc(nand->page_size);
-
- while (data_size > 0)
- {
- uint32_t thisrun_size = (data_size > nand->page_size) ? nand->page_size : data_size;
- uint32_t page_address;
-
-
- page_address = address / nand->page_size;
-
- nand_read_page(nand, page_address, page, nand->page_size, NULL, 0);
-
- memcpy(data, page, thisrun_size);
-
- address += thisrun_size;
- data += thisrun_size;
- data_size -= thisrun_size;
- }
-
- free(page);
-
- return ERROR_OK;
-}
-
-static int nand_write_plain(struct nand_device *nand, uint32_t address, uint8_t *data, uint32_t data_size)
-{
- uint8_t *page;
-
- if (!nand->device)
- return ERROR_NAND_DEVICE_NOT_PROBED;
-
- if (address % nand->page_size)
- {
- LOG_ERROR("writes need to be page aligned");
- return ERROR_NAND_OPERATION_FAILED;
- }
-
- page = malloc(nand->page_size);
-
- while (data_size > 0)
- {
- uint32_t thisrun_size = (data_size > nand->page_size) ? nand->page_size : data_size;
- uint32_t page_address;
-
- memset(page, 0xff, nand->page_size);
- memcpy(page, data, thisrun_size);
-
- page_address = address / nand->page_size;
-
- nand_write_page(nand, page_address, page, nand->page_size, NULL, 0);
-
- address += thisrun_size;
- data += thisrun_size;
- data_size -= thisrun_size;
- }
-
- free(page);
-
- return ERROR_OK;
-}
-#endif
-
-int nand_write_page(struct nand_device *nand, uint32_t page, uint8_t *data, uint32_t data_size, uint8_t *oob, uint32_t oob_size)
-{
- uint32_t block;
-
- if (!nand->device)
- return ERROR_NAND_DEVICE_NOT_PROBED;
-
- block = page / (nand->erase_size / nand->page_size);
- if (nand->blocks[block].is_erased == 1)
- nand->blocks[block].is_erased = 0;
-
- if (nand->use_raw || nand->controller->write_page == NULL)
- return nand_write_page_raw(nand, page, data, data_size, oob, oob_size);
- else
- return nand->controller->write_page(nand, page, data, data_size, oob, oob_size);
-}
-
-static int nand_read_page(struct nand_device *nand, uint32_t page, uint8_t *data, uint32_t data_size, uint8_t *oob, uint32_t oob_size)
-{
- if (!nand->device)
- return ERROR_NAND_DEVICE_NOT_PROBED;
-
- if (nand->use_raw || nand->controller->read_page == NULL)
- return nand_read_page_raw(nand, page, data, data_size, oob, oob_size);
- else
- return nand->controller->read_page(nand, page, data, data_size, oob, oob_size);
-}
-
-int nand_page_command(struct nand_device *nand, uint32_t page,
- uint8_t cmd, bool oob_only)
-{
- if (!nand->device)
- return ERROR_NAND_DEVICE_NOT_PROBED;
-
- if (oob_only && NAND_CMD_READ0 == cmd && nand->page_size <= 512)
- cmd = NAND_CMD_READOOB;
-
- nand->controller->command(nand, cmd);
-
- if (nand->page_size <= 512) {
- /* small page device */
-
- /* column (always 0, we start at the beginning of a page/OOB area) */
- nand->controller->address(nand, 0x0);
-
- /* row */
- nand->controller->address(nand, page & 0xff);
- nand->controller->address(nand, (page >> 8) & 0xff);
-
- /* 4th cycle only on devices with more than 32 MiB */
- if (nand->address_cycles >= 4)
- nand->controller->address(nand, (page >> 16) & 0xff);
-
- /* 5th cycle only on devices with more than 8 GiB */
- if (nand->address_cycles >= 5)
- nand->controller->address(nand, (page >> 24) & 0xff);
- } else {
- /* large page device */
-
- /* column (0 when we start at the beginning of a page,
- * or 2048 for the beginning of OOB area)
- */
- nand->controller->address(nand, 0x0);
- if (oob_only)
- nand->controller->address(nand, 0x8);
- else
- nand->controller->address(nand, 0x0);
-
- /* row */
- nand->controller->address(nand, page & 0xff);
- nand->controller->address(nand, (page >> 8) & 0xff);
-
- /* 5th cycle only on devices with more than 128 MiB */
- if (nand->address_cycles >= 5)
- nand->controller->address(nand, (page >> 16) & 0xff);
-
- /* large page devices need a start command if reading */
- if (NAND_CMD_READ0 == cmd)
- nand->controller->command(nand, NAND_CMD_READSTART);
- }
-
- if (nand->controller->nand_ready) {
- if (!nand->controller->nand_ready(nand, 100))
- return ERROR_NAND_OPERATION_TIMEOUT;
- } else {
- alive_sleep(1);
- }
-
- return ERROR_OK;
-}
-
-int nand_read_page_raw(struct nand_device *nand, uint32_t page,
- uint8_t *data, uint32_t data_size,
- uint8_t *oob, uint32_t oob_size)
-{
- uint32_t i;
- int retval;
-
- retval = nand_page_command(nand, page, NAND_CMD_READ0, !data);
- if (ERROR_OK != retval)
- return retval;
-
- if (data)
- {
- if (nand->controller->read_block_data != NULL)
- (nand->controller->read_block_data)(nand, data, data_size);
- else
- {
- for (i = 0; i < data_size;)
- {
- if (nand->device->options & NAND_BUSWIDTH_16)
- {
- nand->controller->read_data(nand, data);
- data += 2;
- i += 2;
- }
- else
- {
- nand->controller->read_data(nand, data);
- data += 1;
- i += 1;
- }
- }
- }
- }
-
- if (oob)
- {
- if (nand->controller->read_block_data != NULL)
- (nand->controller->read_block_data)(nand, oob, oob_size);
- else
- {
- for (i = 0; i < oob_size;)
- {
- if (nand->device->options & NAND_BUSWIDTH_16)
- {
- nand->controller->read_data(nand, oob);
- oob += 2;
- i += 2;
- }
- else
- {
- nand->controller->read_data(nand, oob);
- oob += 1;
- i += 1;
- }
- }
- }
- }
-
- return ERROR_OK;
-}
-
-int nand_write_page_raw(struct nand_device *nand, uint32_t page, uint8_t *data, uint32_t data_size, uint8_t *oob, uint32_t oob_size)
-{
- uint32_t i;
- int retval;
- uint8_t status;
-
- retval = nand_page_command(nand, page, NAND_CMD_SEQIN, !data);
- if (ERROR_OK != retval)
- return retval;
-
- if (data)
- {
- if (nand->controller->write_block_data != NULL)
- (nand->controller->write_block_data)(nand, data, data_size);
- else
- {
- for (i = 0; i < data_size;)
- {
- if (nand->device->options & NAND_BUSWIDTH_16)
- {
- uint16_t data_buf = le_to_h_u16(data);
- nand->controller->write_data(nand, data_buf);
- data += 2;
- i += 2;
- }
- else
- {
- nand->controller->write_data(nand, *data);
- data += 1;
- i += 1;
- }
- }
- }
- }
-
- if (oob)
- {
- if (nand->controller->write_block_data != NULL)
- (nand->controller->write_block_data)(nand, oob, oob_size);
- else
- {
- for (i = 0; i < oob_size;)
- {
- if (nand->device->options & NAND_BUSWIDTH_16)
- {
- uint16_t oob_buf = le_to_h_u16(data);
- nand->controller->write_data(nand, oob_buf);
- oob += 2;
- i += 2;
- }
- else
- {
- nand->controller->write_data(nand, *oob);
- oob += 1;
- i += 1;
- }
- }
- }
- }
-
- nand->controller->command(nand, NAND_CMD_PAGEPROG);
-
- retval = nand->controller->nand_ready ?
- nand->controller->nand_ready(nand, 100) :
- nand_poll_ready(nand, 100);
- if (!retval)
- return ERROR_NAND_OPERATION_TIMEOUT;
-
- if ((retval = nand_read_status(nand, &status)) != ERROR_OK)
- {
- LOG_ERROR("couldn't read status");
- return ERROR_NAND_OPERATION_FAILED;
- }
-
- if (status & NAND_STATUS_FAIL)
- {
- LOG_ERROR("write operation didn't pass, status: 0x%2.2x", status);
- return ERROR_NAND_OPERATION_FAILED;
- }
-
- return ERROR_OK;
-}
-
-COMMAND_HANDLER(handle_nand_list_command)
-{
- struct nand_device *p;
- int i;
-
- if (!nand_devices)
- {
- command_print(CMD_CTX, "no NAND flash devices configured");
- return ERROR_OK;
- }
-
- for (p = nand_devices, i = 0; p; p = p->next, i++)
- {
- if (p->device)
- command_print(CMD_CTX, "#%i: %s (%s) "
- "pagesize: %i, buswidth: %i,\n\t"
- "blocksize: %i, blocks: %i",
- i, p->device->name, p->manufacturer->name,
- p->page_size, p->bus_width,
- p->erase_size, p->num_blocks);
- else
- command_print(CMD_CTX, "#%i: not probed", i);
- }
-
- return ERROR_OK;
-}
-
-COMMAND_HANDLER(handle_nand_info_command)
-{
- int i = 0;
- int j = 0;
- int first = -1;
- int last = -1;
-
- switch (CMD_ARGC) {
- default:
- return ERROR_COMMAND_SYNTAX_ERROR;
- case 1:
- first = 0;
- last = INT32_MAX;
- break;
- case 2:
- COMMAND_PARSE_NUMBER(int, CMD_ARGV[1], i);
- first = last = i;
- i = 0;
- break;
- case 3:
- COMMAND_PARSE_NUMBER(int, CMD_ARGV[1], first);
- COMMAND_PARSE_NUMBER(int, CMD_ARGV[2], last);
- break;
- }
-
- struct nand_device *p;
- int retval = CALL_COMMAND_HANDLER(nand_command_get_device, 0, &p);
- if (ERROR_OK != retval)
- return retval;
-
- if (NULL == p->device)
- {
- command_print(CMD_CTX, "#%s: not probed", CMD_ARGV[0]);
- return ERROR_OK;
- }
-
- if (first >= p->num_blocks)
- first = p->num_blocks - 1;
-
- if (last >= p->num_blocks)
- last = p->num_blocks - 1;
-
- command_print(CMD_CTX, "#%i: %s (%s) pagesize: %i, buswidth: %i, erasesize: %i",
- i++, p->device->name, p->manufacturer->name, p->page_size, p->bus_width, p->erase_size);
-
- for (j = first; j <= last; j++)
- {
- char *erase_state, *bad_state;
-
- if (p->blocks[j].is_erased == 0)
- erase_state = "not erased";
- else if (p->blocks[j].is_erased == 1)
- erase_state = "erased";
- else
- erase_state = "erase state unknown";
-
- if (p->blocks[j].is_bad == 0)
- bad_state = "";
- else if (p->blocks[j].is_bad == 1)
- bad_state = " (marked bad)";
- else
- bad_state = " (block condition unknown)";
-
- command_print(CMD_CTX,
- "\t#%i: 0x%8.8" PRIx32 " (%" PRId32 "kB) %s%s",
- j,
- p->blocks[j].offset,
- p->blocks[j].size / 1024,
- erase_state,
- bad_state);
- }
-
- return ERROR_OK;
-}
-
-COMMAND_HANDLER(handle_nand_probe_command)
-{
- if (CMD_ARGC != 1)
- {
- return ERROR_COMMAND_SYNTAX_ERROR;
- }
-
- struct nand_device *p;
- int retval = CALL_COMMAND_HANDLER(nand_command_get_device, 0, &p);
- if (ERROR_OK != retval)
- return retval;
-
- if ((retval = nand_probe(p)) == ERROR_OK)
- {
- command_print(CMD_CTX, "NAND flash device '%s' found", p->device->name);
- }
- else if (retval == ERROR_NAND_OPERATION_FAILED)
- {
- command_print(CMD_CTX, "probing failed for NAND flash device");
- }
- else
- {
- command_print(CMD_CTX, "unknown error when probing NAND flash device");
- }
-
- return ERROR_OK;
-}
-
-COMMAND_HANDLER(handle_nand_erase_command)
-{
- if (CMD_ARGC != 1 && CMD_ARGC != 3)
- {
- return ERROR_COMMAND_SYNTAX_ERROR;
-
- }
-
- struct nand_device *p;
- int retval = CALL_COMMAND_HANDLER(nand_command_get_device, 0, &p);
- if (ERROR_OK != retval)
- return retval;
-
- unsigned long offset;
- unsigned long length;
-
- /* erase specified part of the chip; or else everything */
- if (CMD_ARGC == 3) {
- unsigned long size = p->erase_size * p->num_blocks;
-
- COMMAND_PARSE_NUMBER(ulong, CMD_ARGV[1], offset);
- if ((offset % p->erase_size) != 0 || offset >= size)
- return ERROR_INVALID_ARGUMENTS;
-
- COMMAND_PARSE_NUMBER(ulong, CMD_ARGV[2], length);
- if ((length == 0) || (length % p->erase_size) != 0
- || (length + offset) > size)
- return ERROR_INVALID_ARGUMENTS;
-
- offset /= p->erase_size;
- length /= p->erase_size;
- } else {
- offset = 0;
- length = p->num_blocks;
- }
-
- retval = nand_erase(p, offset, offset + length - 1);
- if (retval == ERROR_OK)
- {
- command_print(CMD_CTX, "erased blocks %lu to %lu "
- "on NAND flash device #%s '%s'",
- offset, offset + length,
- CMD_ARGV[0], p->device->name);
- }
- else if (retval == ERROR_NAND_OPERATION_FAILED)
- {
- command_print(CMD_CTX, "erase failed");
- }
- else
- {
- command_print(CMD_CTX, "unknown error when erasing NAND flash device");
- }
-
- return ERROR_OK;
-}
-
-COMMAND_HANDLER(handle_nand_check_bad_blocks_command)
-{
- int first = -1;
- int last = -1;
-
- if ((CMD_ARGC < 1) || (CMD_ARGC > 3) || (CMD_ARGC == 2))
- {
- return ERROR_COMMAND_SYNTAX_ERROR;
-
- }
-
- struct nand_device *p;
- int retval = CALL_COMMAND_HANDLER(nand_command_get_device, 0, &p);
- if (ERROR_OK != retval)
- return retval;
-
- if (CMD_ARGC == 3)
- {
- unsigned long offset;
- unsigned long length;
-
- COMMAND_PARSE_NUMBER(ulong, CMD_ARGV[1], offset);
- if (offset % p->erase_size)
- return ERROR_INVALID_ARGUMENTS;
- offset /= p->erase_size;
-
- COMMAND_PARSE_NUMBER(ulong, CMD_ARGV[2], length);
- if (length % p->erase_size)
- return ERROR_INVALID_ARGUMENTS;
-
- length -= 1;
- length /= p->erase_size;
-
- first = offset;
- last = offset + length;
- }
-
- retval = nand_build_bbt(p, first, last);
- if (retval == ERROR_OK)
- {
- command_print(CMD_CTX, "checked NAND flash device for bad blocks, "
- "use \"nand info\" command to list blocks");
- }
- else if (retval == ERROR_NAND_OPERATION_FAILED)
- {
- command_print(CMD_CTX, "error when checking for bad blocks on "
- "NAND flash device");
- }
- else
- {
- command_print(CMD_CTX, "unknown error when checking for bad "
- "blocks on NAND flash device");
- }
-
- return ERROR_OK;
-}
-
-struct nand_fileio_state {
- uint32_t address;
- uint32_t size;
-
- uint8_t *page;
- uint32_t page_size;
-
- enum oob_formats oob_format;
- uint8_t *oob;
- uint32_t oob_size;
-
- const int *eccpos;
-
- bool file_opened;
- struct fileio fileio;
-
- struct duration bench;
-};
-
-static void nand_fileio_init(struct nand_fileio_state *state)
-{
- memset(state, 0, sizeof(*state));
- state->oob_format = NAND_OOB_NONE;
-}
-
-static int nand_fileio_start(struct command_context *cmd_ctx,
- struct nand_device *nand, const char *filename, int filemode,
- struct nand_fileio_state *state)
-{
- if (state->address % nand->page_size)
- {
- command_print(cmd_ctx, "only page-aligned addresses are supported");
- return ERROR_COMMAND_SYNTAX_ERROR;
- }
-
- duration_start(&state->bench);
-
- if (NULL != filename)
- {
- int retval = fileio_open(&state->fileio, filename, filemode, FILEIO_BINARY);
- if (ERROR_OK != retval)
- {
- const char *msg = (FILEIO_READ == filemode) ? "read" : "write";
- command_print(cmd_ctx, "failed to open '%s' for %s access",
- filename, msg);
- return retval;
- }
- state->file_opened = true;
- }
-
- if (!(state->oob_format & NAND_OOB_ONLY))
- {
- state->page_size = nand->page_size;
- state->page = malloc(nand->page_size);
- }
-
- if (state->oob_format & (NAND_OOB_RAW | NAND_OOB_SW_ECC | NAND_OOB_SW_ECC_KW))
- {
- if (nand->page_size == 512)
- {
- state->oob_size = 16;
- state->eccpos = nand_oob_16.eccpos;
- }
- else if (nand->page_size == 2048)
- {
- state->oob_size = 64;
- state->eccpos = nand_oob_64.eccpos;
- }
- state->oob = malloc(state->oob_size);
- }
-
- return ERROR_OK;
-}
-static int nand_fileio_cleanup(struct nand_fileio_state *state)
-{
- if (state->file_opened)
- fileio_close(&state->fileio);
-
- if (state->oob)
- {
- free(state->oob);
- state->oob = NULL;
- }
- if (state->page)
- {
- free(state->page);
- state->page = NULL;
- }
- return ERROR_OK;
-}
-static int nand_fileio_finish(struct nand_fileio_state *state)
-{
- nand_fileio_cleanup(state);
- return duration_measure(&state->bench);
-}
-
-static COMMAND_HELPER(nand_fileio_parse_args, struct nand_fileio_state *state,
- struct nand_device **dev, enum fileio_access filemode,
- bool need_size, bool sw_ecc)
-{
- nand_fileio_init(state);
-
- unsigned minargs = need_size ? 4 : 3;
- if (CMD_ARGC < minargs)
- return ERROR_COMMAND_SYNTAX_ERROR;
-
- struct nand_device *nand;
- int retval = CALL_COMMAND_HANDLER(nand_command_get_device, 0, &nand);
- if (ERROR_OK != retval)
- return retval;
-
- if (NULL == nand->device)
- {
- command_print(CMD_CTX, "#%s: not probed", CMD_ARGV[0]);
- return ERROR_OK;
- }
-
- COMMAND_PARSE_NUMBER(u32, CMD_ARGV[2], state->address);
- if (need_size)
- {
- COMMAND_PARSE_NUMBER(u32, CMD_ARGV[3], state->size);
- if (state->size % nand->page_size)
- {
- command_print(CMD_CTX, "only page-aligned sizes are supported");
- return ERROR_COMMAND_SYNTAX_ERROR;
- }
- }
-
- if (CMD_ARGC > minargs)
- {
- for (unsigned i = minargs; i < CMD_ARGC; i++)
- {
- if (!strcmp(CMD_ARGV[i], "oob_raw"))
- state->oob_format |= NAND_OOB_RAW;
- else if (!strcmp(CMD_ARGV[i], "oob_only"))
- state->oob_format |= NAND_OOB_RAW | NAND_OOB_ONLY;
- else if (sw_ecc && !strcmp(CMD_ARGV[i], "oob_softecc"))
- state->oob_format |= NAND_OOB_SW_ECC;
- else if (sw_ecc && !strcmp(CMD_ARGV[i], "oob_softecc_kw"))
- state->oob_format |= NAND_OOB_SW_ECC_KW;
- else
- {
- command_print(CMD_CTX, "unknown option: %s", CMD_ARGV[i]);
- return ERROR_COMMAND_SYNTAX_ERROR;
- }
- }
- }
-
- retval = nand_fileio_start(CMD_CTX, nand, CMD_ARGV[1], filemode, state);
- if (ERROR_OK != retval)
- return retval;
-
- if (!need_size)
- state->size = state->fileio.size;
-
- *dev = nand;
-
- return ERROR_OK;
-}
-
-/**
- * @returns If no error occurred, returns number of bytes consumed;
- * otherwise, returns a negative error code.)
- */
-static int nand_fileio_read(struct nand_device *nand,
- struct nand_fileio_state *s)
-{
- size_t total_read = 0;
- size_t one_read;
-
- if (NULL != s->page)
- {
- fileio_read(&s->fileio, s->page_size, s->page, &one_read);
- if (one_read < s->page_size)
- memset(s->page + one_read, 0xff, s->page_size - one_read);
- total_read += one_read;
- }
-
- if (s->oob_format & NAND_OOB_SW_ECC)
- {
- uint8_t ecc[3];
- memset(s->oob, 0xff, s->oob_size);
- for (uint32_t i = 0, j = 0; i < s->page_size; i += 256)
- {
- nand_calculate_ecc(nand, s->page + i, ecc);
- s->oob[s->eccpos[j++]] = ecc[0];
- s->oob[s->eccpos[j++]] = ecc[1];
- s->oob[s->eccpos[j++]] = ecc[2];
- }
- }
- else if (s->oob_format & NAND_OOB_SW_ECC_KW)
- {
- /*
- * In this case eccpos is not used as
- * the ECC data is always stored contigously
- * at the end of the OOB area. It consists
- * of 10 bytes per 512-byte data block.
- */
- uint8_t *ecc = s->oob + s->oob_size - s->page_size / 512 * 10;
- memset(s->oob, 0xff, s->oob_size);
- for (uint32_t i = 0; i < s->page_size; i += 512)
- {
- nand_calculate_ecc_kw(nand, s->page + i, ecc);
- ecc += 10;
- }
- }
- else if (NULL != s->oob)
- {
- fileio_read(&s->fileio, s->oob_size, s->oob, &one_read);
- if (one_read < s->oob_size)
- memset(s->oob + one_read, 0xff, s->oob_size - one_read);
- total_read += one_read;
- }
- return total_read;
-}
-
-COMMAND_HANDLER(handle_nand_write_command)
-{
- struct nand_device *nand = NULL;
- struct nand_fileio_state s;
- int retval = CALL_COMMAND_HANDLER(nand_fileio_parse_args,
- &s, &nand, FILEIO_READ, false, true);
- if (ERROR_OK != retval)
- return retval;
-
- uint32_t total_bytes = s.size;
- while (s.size > 0)
- {
- int bytes_read = nand_fileio_read(nand, &s);
- if (bytes_read <= 0)
- {
- command_print(CMD_CTX, "error while reading file");
- return nand_fileio_cleanup(&s);
- }
- s.size -= bytes_read;
-
- retval = nand_write_page(nand, s.address / nand->page_size,
- s.page, s.page_size, s.oob, s.oob_size);
- if (ERROR_OK != retval)
- {
- command_print(CMD_CTX, "failed writing file %s "
- "to NAND flash %s at offset 0x%8.8" PRIx32,
- CMD_ARGV[1], CMD_ARGV[0], s.address);
- return nand_fileio_cleanup(&s);
- }
- s.address += s.page_size;
- }
-
- if (nand_fileio_finish(&s))
- {
- command_print(CMD_CTX, "wrote file %s to NAND flash %s up to "
- "offset 0x%8.8" PRIx32 " in %fs (%0.3f kb/s)",
- CMD_ARGV[1], CMD_ARGV[0], s.address, duration_elapsed(&s.bench),
- duration_kbps(&s.bench, total_bytes));
- }
- return ERROR_OK;
-}
-
-COMMAND_HANDLER(handle_nand_verify_command)
-{
- struct nand_device *nand = NULL;
- struct nand_fileio_state file;
- int retval = CALL_COMMAND_HANDLER(nand_fileio_parse_args,
- &file, &nand, FILEIO_READ, false, true);
- if (ERROR_OK != retval)
- return retval;
-
- struct nand_fileio_state dev;
- nand_fileio_init(&dev);
- dev.address = file.address;
- dev.size = file.size;
- dev.oob_format = file.oob_format;
- retval = nand_fileio_start(CMD_CTX, nand, NULL, FILEIO_NONE, &dev);
- if (ERROR_OK != retval)
- return retval;
-
- while (file.size > 0)
- {
- int retval = nand_read_page(nand, dev.address / dev.page_size,
- dev.page, dev.page_size, dev.oob, dev.oob_size);
- if (ERROR_OK != retval)
- {
- command_print(CMD_CTX, "reading NAND flash page failed");
- nand_fileio_cleanup(&dev);
- return nand_fileio_cleanup(&file);
- }
-
- int bytes_read = nand_fileio_read(nand, &file);
- if (bytes_read <= 0)
- {
- command_print(CMD_CTX, "error while reading file");
- nand_fileio_cleanup(&dev);
- return nand_fileio_cleanup(&file);
- }
-
- if ((dev.page && memcmp(dev.page, file.page, dev.page_size)) ||
- (dev.oob && memcmp(dev.oob, file.oob, dev.oob_size)) )
- {
- command_print(CMD_CTX, "NAND flash contents differ "
- "at 0x%8.8" PRIx32, dev.address);
- nand_fileio_cleanup(&dev);
- return nand_fileio_cleanup(&file);
- }
-
- file.size -= bytes_read;
- dev.address += nand->page_size;
- }
-
- if (nand_fileio_finish(&file) == ERROR_OK)
- {
- command_print(CMD_CTX, "verified file %s in NAND flash %s "
- "up to offset 0x%8.8" PRIx32 " in %fs (%0.3f kb/s)",
- CMD_ARGV[1], CMD_ARGV[0], dev.address, duration_elapsed(&file.bench),
- duration_kbps(&file.bench, dev.size));
- }
-
- return nand_fileio_cleanup(&dev);
-}
-
-COMMAND_HANDLER(handle_nand_dump_command)
-{
- struct nand_device *nand = NULL;
- struct nand_fileio_state s;
- int retval = CALL_COMMAND_HANDLER(nand_fileio_parse_args,
- &s, &nand, FILEIO_WRITE, true, false);
- if (ERROR_OK != retval)
- return retval;
-
- while (s.size > 0)
- {
- size_t size_written;
- int retval = nand_read_page(nand, s.address / nand->page_size,
- s.page, s.page_size, s.oob, s.oob_size);
- if (ERROR_OK != retval)
- {
- command_print(CMD_CTX, "reading NAND flash page failed");
- return nand_fileio_cleanup(&s);
- }
-
- if (NULL != s.page)
- fileio_write(&s.fileio, s.page_size, s.page, &size_written);
-
- if (NULL != s.oob)
- fileio_write(&s.fileio, s.oob_size, s.oob, &size_written);
-
- s.size -= nand->page_size;
- s.address += nand->page_size;
- }
-
- if (nand_fileio_finish(&s) == ERROR_OK)
- {
- command_print(CMD_CTX, "dumped %zu bytes in %fs (%0.3f kb/s)",
- s.fileio.size, duration_elapsed(&s.bench),
- duration_kbps(&s.bench, s.fileio.size));
- }
- return ERROR_OK;
-}
-
-COMMAND_HANDLER(handle_nand_raw_access_command)
-{
- if ((CMD_ARGC < 1) || (CMD_ARGC > 2))
- {
- return ERROR_COMMAND_SYNTAX_ERROR;
- }
-
- struct nand_device *p;
- int retval = CALL_COMMAND_HANDLER(nand_command_get_device, 0, &p);
- if (ERROR_OK != retval)
- return retval;
-
- if (NULL == p->device)
- {
- command_print(CMD_CTX, "#%s: not probed", CMD_ARGV[0]);
- return ERROR_OK;
- }
-
- if (CMD_ARGC == 2)
- COMMAND_PARSE_ENABLE(CMD_ARGV[1], p->use_raw);
-
- const char *msg = p->use_raw ? "enabled" : "disabled";
- command_print(CMD_CTX, "raw access is %s", msg);
-
- return ERROR_OK;
-}
-
-static const struct command_registration nand_exec_command_handlers[] = {
- {
- .name = "list",
- .handler = &handle_nand_list_command,
- .mode = COMMAND_EXEC,
- .help = "list configured NAND flash devices",
- },
- {
- .name = "info",
- .handler = &handle_nand_info_command,
- .mode = COMMAND_EXEC,
- .usage = "<bank>",
- .help = "print info about a NAND flash device",
- },
- {
- .name = "probe",
- .handler = &handle_nand_probe_command,
- .mode = COMMAND_EXEC,
- .usage = "<bank>",
- .help = "identify NAND flash device <num>",
-
- },
- {
- .name = "check_bad_blocks",
- .handler = &handle_nand_check_bad_blocks_command,
- .mode = COMMAND_EXEC,
- .usage = "<bank> [<offset> <length>]",
- .help = "check NAND flash device <num> for bad blocks",
- },
- {
- .name = "erase",
- .handler = &handle_nand_erase_command,
- .mode = COMMAND_EXEC,
- .usage = "<bank> [<offset> <length>]",
- .help = "erase blocks on NAND flash device",
- },
- {
- .name = "dump",
- .handler = &handle_nand_dump_command,
- .mode = COMMAND_EXEC,
- .usage = "<bank> <filename> <offset> <length> "
- "[oob_raw | oob_only]",
- .help = "dump from NAND flash device",
- },
- {
- .name = "verify",
- .handler = &handle_nand_verify_command,
- .mode = COMMAND_EXEC,
- .usage = "<bank> <filename> <offset> "
- "[oob_raw | oob_only | oob_softecc | oob_softecc_kw]",
- .help = "verify NAND flash device",
- },
- {
- .name = "write",
- .handler = &handle_nand_write_command,
- .mode = COMMAND_EXEC,
- .usage = "<bank> <filename> <offset> "
- "[oob_raw | oob_only | oob_softecc | oob_softecc_kw]",
- .help = "write to NAND flash device",
- },
- {
- .name = "raw_access",
- .handler = &handle_nand_raw_access_command,
- .mode = COMMAND_EXEC,
- .usage = "<num> ['enable'|'disable']",
- .help = "raw access to NAND flash device",
- },
- COMMAND_REGISTRATION_DONE
-};
-
-int nand_init(struct command_context *cmd_ctx)
-{
- if (!nand_devices)
- return ERROR_OK;
- struct command *parent = command_find_in_context(cmd_ctx, "nand");
- return register_commands(cmd_ctx, parent, nand_exec_command_handlers);
-}
-
-COMMAND_HANDLER(handle_nand_init_command)
-{
- if (CMD_ARGC != 0)
- return ERROR_COMMAND_SYNTAX_ERROR;
-
- static bool nand_initialized = false;
- if (nand_initialized)
- {
- LOG_INFO("'nand init' has already been called");
- return ERROR_OK;
- }
- nand_initialized = true;
-
- LOG_DEBUG("Initializing NAND devices...");
- return nand_init(CMD_CTX);
-}
noinst_LTLIBRARIES = libocdflashnand.la
libocdflashnand_la_SOURCES = \
+ core.c \
+ fileio.c \
+ tcl.c \
$(NAND_DRIVERS) \
driver.c
--- /dev/null
+/***************************************************************************
+ * Copyright (C) 2007 by Dominic Rath <Dominic.Rath@gmx.de> *
+ * Copyright (C) 2002 Thomas Gleixner <tglx@linutronix.de> *
+ * Copyright (C) 2009 Zachary T Welch <zw@superlucidity.net> *
+ * *
+ * Partially based on drivers/mtd/nand_ids.c from Linux. *
+ * *
+ * 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/nand.h>
+#include <flash/common.h>
+#include "imp.h"
+
+/* configured NAND devices and NAND Flash command handler */
+struct nand_device *nand_devices = NULL;
+
+void nand_device_add(struct nand_device *c)
+{
+ if (nand_devices) {
+ struct nand_device *p = nand_devices;
+ while (p && p->next) p = p->next;
+ p->next = c;
+ } else
+ nand_devices = c;
+}
+
+
+/* Chip ID list
+ *
+ * Name, ID code, pagesize, chipsize in MegaByte, eraseblock size,
+ * options
+ *
+ * Pagesize; 0, 256, 512
+ * 0 get this information from the extended chip ID
+ * 256 256 Byte page size
+ * 512 512 Byte page size
+ */
+static struct nand_info nand_flash_ids[] =
+{
+ /* start "museum" IDs */
+ {"NAND 1MiB 5V 8-bit", 0x6e, 256, 1, 0x1000, 0},
+ {"NAND 2MiB 5V 8-bit", 0x64, 256, 2, 0x1000, 0},
+ {"NAND 4MiB 5V 8-bit", 0x6b, 512, 4, 0x2000, 0},
+ {"NAND 1MiB 3,3V 8-bit", 0xe8, 256, 1, 0x1000, 0},
+ {"NAND 1MiB 3,3V 8-bit", 0xec, 256, 1, 0x1000, 0},
+ {"NAND 2MiB 3,3V 8-bit", 0xea, 256, 2, 0x1000, 0},
+ {"NAND 4MiB 3,3V 8-bit", 0xd5, 512, 4, 0x2000, 0},
+ {"NAND 4MiB 3,3V 8-bit", 0xe3, 512, 4, 0x2000, 0},
+ {"NAND 4MiB 3,3V 8-bit", 0xe5, 512, 4, 0x2000, 0},
+ {"NAND 8MiB 3,3V 8-bit", 0xd6, 512, 8, 0x2000, 0},
+
+ {"NAND 8MiB 1,8V 8-bit", 0x39, 512, 8, 0x2000, 0},
+ {"NAND 8MiB 3,3V 8-bit", 0xe6, 512, 8, 0x2000, 0},
+ {"NAND 8MiB 1,8V 16-bit", 0x49, 512, 8, 0x2000, NAND_BUSWIDTH_16},
+ {"NAND 8MiB 3,3V 16-bit", 0x59, 512, 8, 0x2000, NAND_BUSWIDTH_16},
+ /* end "museum" IDs */
+
+ {"NAND 16MiB 1,8V 8-bit", 0x33, 512, 16, 0x4000, 0},
+ {"NAND 16MiB 3,3V 8-bit", 0x73, 512, 16, 0x4000, 0},
+ {"NAND 16MiB 1,8V 16-bit", 0x43, 512, 16, 0x4000, NAND_BUSWIDTH_16},
+ {"NAND 16MiB 3,3V 16-bit", 0x53, 512, 16, 0x4000, NAND_BUSWIDTH_16},
+
+ {"NAND 32MiB 1,8V 8-bit", 0x35, 512, 32, 0x4000, 0},
+ {"NAND 32MiB 3,3V 8-bit", 0x75, 512, 32, 0x4000, 0},
+ {"NAND 32MiB 1,8V 16-bit", 0x45, 512, 32, 0x4000, NAND_BUSWIDTH_16},
+ {"NAND 32MiB 3,3V 16-bit", 0x55, 512, 32, 0x4000, NAND_BUSWIDTH_16},
+
+ {"NAND 64MiB 1,8V 8-bit", 0x36, 512, 64, 0x4000, 0},
+ {"NAND 64MiB 3,3V 8-bit", 0x76, 512, 64, 0x4000, 0},
+ {"NAND 64MiB 1,8V 16-bit", 0x46, 512, 64, 0x4000, NAND_BUSWIDTH_16},
+ {"NAND 64MiB 3,3V 16-bit", 0x56, 512, 64, 0x4000, NAND_BUSWIDTH_16},
+
+ {"NAND 128MiB 1,8V 8-bit", 0x78, 512, 128, 0x4000, 0},
+ {"NAND 128MiB 1,8V 8-bit", 0x39, 512, 128, 0x4000, 0},
+ {"NAND 128MiB 3,3V 8-bit", 0x79, 512, 128, 0x4000, 0},
+ {"NAND 128MiB 1,8V 16-bit", 0x72, 512, 128, 0x4000, NAND_BUSWIDTH_16},
+ {"NAND 128MiB 1,8V 16-bit", 0x49, 512, 128, 0x4000, NAND_BUSWIDTH_16},
+ {"NAND 128MiB 3,3V 16-bit", 0x74, 512, 128, 0x4000, NAND_BUSWIDTH_16},
+ {"NAND 128MiB 3,3V 16-bit", 0x59, 512, 128, 0x4000, NAND_BUSWIDTH_16},
+
+ {"NAND 256MiB 3,3V 8-bit", 0x71, 512, 256, 0x4000, 0},
+
+ {"NAND 64MiB 1,8V 8-bit", 0xA2, 0, 64, 0, LP_OPTIONS},
+ {"NAND 64MiB 3,3V 8-bit", 0xF2, 0, 64, 0, LP_OPTIONS},
+ {"NAND 64MiB 1,8V 16-bit", 0xB2, 0, 64, 0, LP_OPTIONS16},
+ {"NAND 64MiB 3,3V 16-bit", 0xC2, 0, 64, 0, LP_OPTIONS16},
+
+ {"NAND 128MiB 1,8V 8-bit", 0xA1, 0, 128, 0, LP_OPTIONS},
+ {"NAND 128MiB 3,3V 8-bit", 0xF1, 0, 128, 0, LP_OPTIONS},
+ {"NAND 128MiB 1,8V 16-bit", 0xB1, 0, 128, 0, LP_OPTIONS16},
+ {"NAND 128MiB 3,3V 16-bit", 0xC1, 0, 128, 0, LP_OPTIONS16},
+
+ {"NAND 256MiB 1,8V 8-bit", 0xAA, 0, 256, 0, LP_OPTIONS},
+ {"NAND 256MiB 3,3V 8-bit", 0xDA, 0, 256, 0, LP_OPTIONS},
+ {"NAND 256MiB 1,8V 16-bit", 0xBA, 0, 256, 0, LP_OPTIONS16},
+ {"NAND 256MiB 3,3V 16-bit", 0xCA, 0, 256, 0, LP_OPTIONS16},
+
+ {"NAND 512MiB 1,8V 8-bit", 0xAC, 0, 512, 0, LP_OPTIONS},
+ {"NAND 512MiB 3,3V 8-bit", 0xDC, 0, 512, 0, LP_OPTIONS},
+ {"NAND 512MiB 1,8V 16-bit", 0xBC, 0, 512, 0, LP_OPTIONS16},
+ {"NAND 512MiB 3,3V 16-bit", 0xCC, 0, 512, 0, LP_OPTIONS16},
+
+ {"NAND 1GiB 1,8V 8-bit", 0xA3, 0, 1024, 0, LP_OPTIONS},
+ {"NAND 1GiB 3,3V 8-bit", 0xD3, 0, 1024, 0, LP_OPTIONS},
+ {"NAND 1GiB 1,8V 16-bit", 0xB3, 0, 1024, 0, LP_OPTIONS16},
+ {"NAND 1GiB 3,3V 16-bit", 0xC3, 0, 1024, 0, LP_OPTIONS16},
+
+ {"NAND 2GiB 1,8V 8-bit", 0xA5, 0, 2048, 0, LP_OPTIONS},
+ {"NAND 2GiB 3,3V 8-bit", 0xD5, 0, 2048, 0, LP_OPTIONS},
+ {"NAND 2GiB 1,8V 16-bit", 0xB5, 0, 2048, 0, LP_OPTIONS16},
+ {"NAND 2GiB 3,3V 16-bit", 0xC5, 0, 2048, 0, LP_OPTIONS16},
+
+ {NULL, 0, 0, 0, 0, 0 }
+};
+
+/* Manufacturer ID list
+ */
+static struct nand_manufacturer nand_manuf_ids[] =
+{
+ {0x0, "unknown"},
+ {NAND_MFR_TOSHIBA, "Toshiba"},
+ {NAND_MFR_SAMSUNG, "Samsung"},
+ {NAND_MFR_FUJITSU, "Fujitsu"},
+ {NAND_MFR_NATIONAL, "National"},
+ {NAND_MFR_RENESAS, "Renesas"},
+ {NAND_MFR_STMICRO, "ST Micro"},
+ {NAND_MFR_HYNIX, "Hynix"},
+ {NAND_MFR_MICRON, "Micron"},
+ {0x0, NULL},
+};
+
+/*
+ * Define default oob placement schemes for large and small page devices
+ */
+
+#if 0
+static struct nand_ecclayout nand_oob_8 = {
+ .eccbytes = 3,
+ .eccpos = {0, 1, 2},
+ .oobfree = {
+ {.offset = 3,
+ .length = 2},
+ {.offset = 6,
+ .length = 2}}
+};
+#endif
+
+struct nand_device *get_nand_device_by_name(const char *name)
+{
+ unsigned requested = get_flash_name_index(name);
+ unsigned found = 0;
+
+ struct nand_device *nand;
+ for (nand = nand_devices; NULL != nand; nand = nand->next)
+ {
+ if (strcmp(nand->name, name) == 0)
+ return nand;
+ if (!flash_driver_name_matches(nand->controller->name, name))
+ continue;
+ if (++found < requested)
+ continue;
+ return nand;
+ }
+ return NULL;
+}
+
+struct nand_device *get_nand_device_by_num(int num)
+{
+ struct nand_device *p;
+ int i = 0;
+
+ for (p = nand_devices; p; p = p->next)
+ {
+ if (i++ == num)
+ {
+ return p;
+ }
+ }
+
+ return NULL;
+}
+
+COMMAND_HELPER(nand_command_get_device, unsigned name_index,
+ struct nand_device **nand)
+{
+ const char *str = CMD_ARGV[name_index];
+ *nand = get_nand_device_by_name(str);
+ if (*nand)
+ return ERROR_OK;
+
+ unsigned num;
+ COMMAND_PARSE_NUMBER(uint, str, num);
+ *nand = get_nand_device_by_num(num);
+ if (!*nand) {
+ command_print(CMD_CTX, "NAND flash device '%s' not found", str);
+ return ERROR_INVALID_ARGUMENTS;
+ }
+ return ERROR_OK;
+}
+
+int nand_build_bbt(struct nand_device *nand, int first, int last)
+{
+ uint32_t page = 0x0;
+ int i;
+ uint8_t oob[6];
+
+ if ((first < 0) || (first >= nand->num_blocks))
+ first = 0;
+
+ if ((last >= nand->num_blocks) || (last == -1))
+ last = nand->num_blocks - 1;
+
+ for (i = first; i < last; i++)
+ {
+ nand_read_page(nand, page, NULL, 0, oob, 6);
+
+ if (((nand->device->options & NAND_BUSWIDTH_16) && ((oob[0] & oob[1]) != 0xff))
+ || (((nand->page_size == 512) && (oob[5] != 0xff)) ||
+ ((nand->page_size == 2048) && (oob[0] != 0xff))))
+ {
+ LOG_WARNING("bad block: %i", i);
+ nand->blocks[i].is_bad = 1;
+ }
+ else
+ {
+ nand->blocks[i].is_bad = 0;
+ }
+
+ page += (nand->erase_size / nand->page_size);
+ }
+
+ return ERROR_OK;
+}
+
+int nand_read_status(struct nand_device *nand, uint8_t *status)
+{
+ if (!nand->device)
+ return ERROR_NAND_DEVICE_NOT_PROBED;
+
+ /* Send read status command */
+ nand->controller->command(nand, NAND_CMD_STATUS);
+
+ alive_sleep(1);
+
+ /* read status */
+ if (nand->device->options & NAND_BUSWIDTH_16)
+ {
+ uint16_t data;
+ nand->controller->read_data(nand, &data);
+ *status = data & 0xff;
+ }
+ else
+ {
+ nand->controller->read_data(nand, status);
+ }
+
+ return ERROR_OK;
+}
+
+static int nand_poll_ready(struct nand_device *nand, int timeout)
+{
+ uint8_t status;
+
+ nand->controller->command(nand, NAND_CMD_STATUS);
+ do {
+ if (nand->device->options & NAND_BUSWIDTH_16) {
+ uint16_t data;
+ nand->controller->read_data(nand, &data);
+ status = data & 0xff;
+ } else {
+ nand->controller->read_data(nand, &status);
+ }
+ if (status & NAND_STATUS_READY)
+ break;
+ alive_sleep(1);
+ } while (timeout--);
+
+ return (status & NAND_STATUS_READY) != 0;
+}
+
+int nand_probe(struct nand_device *nand)
+{
+ uint8_t manufacturer_id, device_id;
+ uint8_t id_buff[6];
+ int retval;
+ int i;
+
+ /* clear device data */
+ nand->device = NULL;
+ nand->manufacturer = NULL;
+
+ /* clear device parameters */
+ nand->bus_width = 0;
+ nand->address_cycles = 0;
+ nand->page_size = 0;
+ nand->erase_size = 0;
+
+ /* initialize controller (device parameters are zero, use controller default) */
+ if ((retval = nand->controller->init(nand) != ERROR_OK))
+ {
+ switch (retval)
+ {
+ case ERROR_NAND_OPERATION_FAILED:
+ LOG_DEBUG("controller initialization failed");
+ return ERROR_NAND_OPERATION_FAILED;
+ case ERROR_NAND_OPERATION_NOT_SUPPORTED:
+ LOG_ERROR("BUG: controller reported that it doesn't support default parameters");
+ return ERROR_NAND_OPERATION_FAILED;
+ default:
+ LOG_ERROR("BUG: unknown controller initialization failure");
+ return ERROR_NAND_OPERATION_FAILED;
+ }
+ }
+
+ nand->controller->command(nand, NAND_CMD_RESET);
+ nand->controller->reset(nand);
+
+ nand->controller->command(nand, NAND_CMD_READID);
+ nand->controller->address(nand, 0x0);
+
+ if (nand->bus_width == 8)
+ {
+ nand->controller->read_data(nand, &manufacturer_id);
+ nand->controller->read_data(nand, &device_id);
+ }
+ else
+ {
+ uint16_t data_buf;
+ nand->controller->read_data(nand, &data_buf);
+ manufacturer_id = data_buf & 0xff;
+ nand->controller->read_data(nand, &data_buf);
+ device_id = data_buf & 0xff;
+ }
+
+ for (i = 0; nand_flash_ids[i].name; i++)
+ {
+ if (nand_flash_ids[i].id == device_id)
+ {
+ nand->device = &nand_flash_ids[i];
+ break;
+ }
+ }
+
+ for (i = 0; nand_manuf_ids[i].name; i++)
+ {
+ if (nand_manuf_ids[i].id == manufacturer_id)
+ {
+ nand->manufacturer = &nand_manuf_ids[i];
+ break;
+ }
+ }
+
+ if (!nand->manufacturer)
+ {
+ nand->manufacturer = &nand_manuf_ids[0];
+ nand->manufacturer->id = manufacturer_id;
+ }
+
+ if (!nand->device)
+ {
+ LOG_ERROR("unknown NAND flash device found, manufacturer id: 0x%2.2x device id: 0x%2.2x",
+ manufacturer_id, device_id);
+ return ERROR_NAND_OPERATION_FAILED;
+ }
+
+ LOG_DEBUG("found %s (%s)", nand->device->name, nand->manufacturer->name);
+
+ /* initialize device parameters */
+
+ /* bus width */
+ if (nand->device->options & NAND_BUSWIDTH_16)
+ nand->bus_width = 16;
+ else
+ nand->bus_width = 8;
+
+ /* Do we need extended device probe information? */
+ if (nand->device->page_size == 0 ||
+ nand->device->erase_size == 0)
+ {
+ if (nand->bus_width == 8)
+ {
+ nand->controller->read_data(nand, id_buff + 3);
+ nand->controller->read_data(nand, id_buff + 4);
+ nand->controller->read_data(nand, id_buff + 5);
+ }
+ else
+ {
+ uint16_t data_buf;
+
+ nand->controller->read_data(nand, &data_buf);
+ id_buff[3] = data_buf;
+
+ nand->controller->read_data(nand, &data_buf);
+ id_buff[4] = data_buf;
+
+ nand->controller->read_data(nand, &data_buf);
+ id_buff[5] = data_buf >> 8;
+ }
+ }
+
+ /* page size */
+ if (nand->device->page_size == 0)
+ {
+ nand->page_size = 1 << (10 + (id_buff[4] & 3));
+ }
+ else if (nand->device->page_size == 256)
+ {
+ LOG_ERROR("NAND flashes with 256 byte pagesize are not supported");
+ return ERROR_NAND_OPERATION_FAILED;
+ }
+ else
+ {
+ nand->page_size = nand->device->page_size;
+ }
+
+ /* number of address cycles */
+ if (nand->page_size <= 512)
+ {
+ /* small page devices */
+ if (nand->device->chip_size <= 32)
+ nand->address_cycles = 3;
+ else if (nand->device->chip_size <= 8*1024)
+ nand->address_cycles = 4;
+ else
+ {
+ LOG_ERROR("BUG: small page NAND device with more than 8 GiB encountered");
+ nand->address_cycles = 5;
+ }
+ }
+ else
+ {
+ /* large page devices */
+ if (nand->device->chip_size <= 128)
+ nand->address_cycles = 4;
+ else if (nand->device->chip_size <= 32*1024)
+ nand->address_cycles = 5;
+ else
+ {
+ LOG_ERROR("BUG: large page NAND device with more than 32 GiB encountered");
+ nand->address_cycles = 6;
+ }
+ }
+
+ /* erase size */
+ if (nand->device->erase_size == 0)
+ {
+ switch ((id_buff[4] >> 4) & 3) {
+ case 0:
+ nand->erase_size = 64 << 10;
+ break;
+ case 1:
+ nand->erase_size = 128 << 10;
+ break;
+ case 2:
+ nand->erase_size = 256 << 10;
+ break;
+ case 3:
+ nand->erase_size =512 << 10;
+ break;
+ }
+ }
+ else
+ {
+ nand->erase_size = nand->device->erase_size;
+ }
+
+ /* initialize controller, but leave parameters at the controllers default */
+ if ((retval = nand->controller->init(nand) != ERROR_OK))
+ {
+ switch (retval)
+ {
+ case ERROR_NAND_OPERATION_FAILED:
+ LOG_DEBUG("controller initialization failed");
+ return ERROR_NAND_OPERATION_FAILED;
+ case ERROR_NAND_OPERATION_NOT_SUPPORTED:
+ LOG_ERROR("controller doesn't support requested parameters (buswidth: %i, address cycles: %i, page size: %i)",
+ nand->bus_width, nand->address_cycles, nand->page_size);
+ return ERROR_NAND_OPERATION_FAILED;
+ default:
+ LOG_ERROR("BUG: unknown controller initialization failure");
+ return ERROR_NAND_OPERATION_FAILED;
+ }
+ }
+
+ nand->num_blocks = (nand->device->chip_size * 1024) / (nand->erase_size / 1024);
+ nand->blocks = malloc(sizeof(struct nand_block) * nand->num_blocks);
+
+ for (i = 0; i < nand->num_blocks; i++)
+ {
+ nand->blocks[i].size = nand->erase_size;
+ nand->blocks[i].offset = i * nand->erase_size;
+ nand->blocks[i].is_erased = -1;
+ nand->blocks[i].is_bad = -1;
+ }
+
+ return ERROR_OK;
+}
+
+int nand_erase(struct nand_device *nand, int first_block, int last_block)
+{
+ int i;
+ uint32_t page;
+ uint8_t status;
+ int retval;
+
+ if (!nand->device)
+ return ERROR_NAND_DEVICE_NOT_PROBED;
+
+ if ((first_block < 0) || (last_block > nand->num_blocks))
+ return ERROR_INVALID_ARGUMENTS;
+
+ /* make sure we know if a block is bad before erasing it */
+ for (i = first_block; i <= last_block; i++)
+ {
+ if (nand->blocks[i].is_bad == -1)
+ {
+ nand_build_bbt(nand, i, last_block);
+ break;
+ }
+ }
+
+ for (i = first_block; i <= last_block; i++)
+ {
+ /* Send erase setup command */
+ nand->controller->command(nand, NAND_CMD_ERASE1);
+
+ page = i * (nand->erase_size / nand->page_size);
+
+ /* Send page address */
+ if (nand->page_size <= 512)
+ {
+ /* row */
+ nand->controller->address(nand, page & 0xff);
+ nand->controller->address(nand, (page >> 8) & 0xff);
+
+ /* 3rd cycle only on devices with more than 32 MiB */
+ if (nand->address_cycles >= 4)
+ nand->controller->address(nand, (page >> 16) & 0xff);
+
+ /* 4th cycle only on devices with more than 8 GiB */
+ if (nand->address_cycles >= 5)
+ nand->controller->address(nand, (page >> 24) & 0xff);
+ }
+ else
+ {
+ /* row */
+ nand->controller->address(nand, page & 0xff);
+ nand->controller->address(nand, (page >> 8) & 0xff);
+
+ /* 3rd cycle only on devices with more than 128 MiB */
+ if (nand->address_cycles >= 5)
+ nand->controller->address(nand, (page >> 16) & 0xff);
+ }
+
+ /* Send erase confirm command */
+ nand->controller->command(nand, NAND_CMD_ERASE2);
+
+ retval = nand->controller->nand_ready ?
+ nand->controller->nand_ready(nand, 1000) :
+ nand_poll_ready(nand, 1000);
+ if (!retval) {
+ LOG_ERROR("timeout waiting for NAND flash block erase to complete");
+ return ERROR_NAND_OPERATION_TIMEOUT;
+ }
+
+ if ((retval = nand_read_status(nand, &status)) != ERROR_OK)
+ {
+ LOG_ERROR("couldn't read status");
+ return ERROR_NAND_OPERATION_FAILED;
+ }
+
+ if (status & 0x1)
+ {
+ LOG_ERROR("didn't erase %sblock %d; status: 0x%2.2x",
+ (nand->blocks[i].is_bad == 1)
+ ? "bad " : "",
+ i, status);
+ /* continue; other blocks might still be erasable */
+ }
+
+ nand->blocks[i].is_erased = 1;
+ }
+
+ return ERROR_OK;
+}
+
+#if 0
+static int nand_read_plain(struct nand_device *nand, uint32_t address, uint8_t *data, uint32_t data_size)
+{
+ uint8_t *page;
+
+ if (!nand->device)
+ return ERROR_NAND_DEVICE_NOT_PROBED;
+
+ if (address % nand->page_size)
+ {
+ LOG_ERROR("reads need to be page aligned");
+ return ERROR_NAND_OPERATION_FAILED;
+ }
+
+ page = malloc(nand->page_size);
+
+ while (data_size > 0)
+ {
+ uint32_t thisrun_size = (data_size > nand->page_size) ? nand->page_size : data_size;
+ uint32_t page_address;
+
+
+ page_address = address / nand->page_size;
+
+ nand_read_page(nand, page_address, page, nand->page_size, NULL, 0);
+
+ memcpy(data, page, thisrun_size);
+
+ address += thisrun_size;
+ data += thisrun_size;
+ data_size -= thisrun_size;
+ }
+
+ free(page);
+
+ return ERROR_OK;
+}
+
+static int nand_write_plain(struct nand_device *nand, uint32_t address, uint8_t *data, uint32_t data_size)
+{
+ uint8_t *page;
+
+ if (!nand->device)
+ return ERROR_NAND_DEVICE_NOT_PROBED;
+
+ if (address % nand->page_size)
+ {
+ LOG_ERROR("writes need to be page aligned");
+ return ERROR_NAND_OPERATION_FAILED;
+ }
+
+ page = malloc(nand->page_size);
+
+ while (data_size > 0)
+ {
+ uint32_t thisrun_size = (data_size > nand->page_size) ? nand->page_size : data_size;
+ uint32_t page_address;
+
+ memset(page, 0xff, nand->page_size);
+ memcpy(page, data, thisrun_size);
+
+ page_address = address / nand->page_size;
+
+ nand_write_page(nand, page_address, page, nand->page_size, NULL, 0);
+
+ address += thisrun_size;
+ data += thisrun_size;
+ data_size -= thisrun_size;
+ }
+
+ free(page);
+
+ return ERROR_OK;
+}
+#endif
+
+int nand_write_page(struct nand_device *nand, uint32_t page, uint8_t *data, uint32_t data_size, uint8_t *oob, uint32_t oob_size)
+{
+ uint32_t block;
+
+ if (!nand->device)
+ return ERROR_NAND_DEVICE_NOT_PROBED;
+
+ block = page / (nand->erase_size / nand->page_size);
+ if (nand->blocks[block].is_erased == 1)
+ nand->blocks[block].is_erased = 0;
+
+ if (nand->use_raw || nand->controller->write_page == NULL)
+ return nand_write_page_raw(nand, page, data, data_size, oob, oob_size);
+ else
+ return nand->controller->write_page(nand, page, data, data_size, oob, oob_size);
+}
+
+int nand_read_page(struct nand_device *nand, uint32_t page,
+ uint8_t *data, uint32_t data_size,
+ uint8_t *oob, uint32_t oob_size)
+{
+ if (!nand->device)
+ return ERROR_NAND_DEVICE_NOT_PROBED;
+
+ if (nand->use_raw || nand->controller->read_page == NULL)
+ return nand_read_page_raw(nand, page, data, data_size, oob, oob_size);
+ else
+ return nand->controller->read_page(nand, page, data, data_size, oob, oob_size);
+}
+
+int nand_page_command(struct nand_device *nand, uint32_t page,
+ uint8_t cmd, bool oob_only)
+{
+ if (!nand->device)
+ return ERROR_NAND_DEVICE_NOT_PROBED;
+
+ if (oob_only && NAND_CMD_READ0 == cmd && nand->page_size <= 512)
+ cmd = NAND_CMD_READOOB;
+
+ nand->controller->command(nand, cmd);
+
+ if (nand->page_size <= 512) {
+ /* small page device */
+
+ /* column (always 0, we start at the beginning of a page/OOB area) */
+ nand->controller->address(nand, 0x0);
+
+ /* row */
+ nand->controller->address(nand, page & 0xff);
+ nand->controller->address(nand, (page >> 8) & 0xff);
+
+ /* 4th cycle only on devices with more than 32 MiB */
+ if (nand->address_cycles >= 4)
+ nand->controller->address(nand, (page >> 16) & 0xff);
+
+ /* 5th cycle only on devices with more than 8 GiB */
+ if (nand->address_cycles >= 5)
+ nand->controller->address(nand, (page >> 24) & 0xff);
+ } else {
+ /* large page device */
+
+ /* column (0 when we start at the beginning of a page,
+ * or 2048 for the beginning of OOB area)
+ */
+ nand->controller->address(nand, 0x0);
+ if (oob_only)
+ nand->controller->address(nand, 0x8);
+ else
+ nand->controller->address(nand, 0x0);
+
+ /* row */
+ nand->controller->address(nand, page & 0xff);
+ nand->controller->address(nand, (page >> 8) & 0xff);
+
+ /* 5th cycle only on devices with more than 128 MiB */
+ if (nand->address_cycles >= 5)
+ nand->controller->address(nand, (page >> 16) & 0xff);
+
+ /* large page devices need a start command if reading */
+ if (NAND_CMD_READ0 == cmd)
+ nand->controller->command(nand, NAND_CMD_READSTART);
+ }
+
+ if (nand->controller->nand_ready) {
+ if (!nand->controller->nand_ready(nand, 100))
+ return ERROR_NAND_OPERATION_TIMEOUT;
+ } else {
+ alive_sleep(1);
+ }
+
+ return ERROR_OK;
+}
+
+int nand_read_page_raw(struct nand_device *nand, uint32_t page,
+ uint8_t *data, uint32_t data_size,
+ uint8_t *oob, uint32_t oob_size)
+{
+ uint32_t i;
+ int retval;
+
+ retval = nand_page_command(nand, page, NAND_CMD_READ0, !data);
+ if (ERROR_OK != retval)
+ return retval;
+
+ if (data)
+ {
+ if (nand->controller->read_block_data != NULL)
+ (nand->controller->read_block_data)(nand, data, data_size);
+ else
+ {
+ for (i = 0; i < data_size;)
+ {
+ if (nand->device->options & NAND_BUSWIDTH_16)
+ {
+ nand->controller->read_data(nand, data);
+ data += 2;
+ i += 2;
+ }
+ else
+ {
+ nand->controller->read_data(nand, data);
+ data += 1;
+ i += 1;
+ }
+ }
+ }
+ }
+
+ if (oob)
+ {
+ if (nand->controller->read_block_data != NULL)
+ (nand->controller->read_block_data)(nand, oob, oob_size);
+ else
+ {
+ for (i = 0; i < oob_size;)
+ {
+ if (nand->device->options & NAND_BUSWIDTH_16)
+ {
+ nand->controller->read_data(nand, oob);
+ oob += 2;
+ i += 2;
+ }
+ else
+ {
+ nand->controller->read_data(nand, oob);
+ oob += 1;
+ i += 1;
+ }
+ }
+ }
+ }
+
+ return ERROR_OK;
+}
+
+int nand_write_page_raw(struct nand_device *nand, uint32_t page, uint8_t *data, uint32_t data_size, uint8_t *oob, uint32_t oob_size)
+{
+ uint32_t i;
+ int retval;
+ uint8_t status;
+
+ retval = nand_page_command(nand, page, NAND_CMD_SEQIN, !data);
+ if (ERROR_OK != retval)
+ return retval;
+
+ if (data)
+ {
+ if (nand->controller->write_block_data != NULL)
+ (nand->controller->write_block_data)(nand, data, data_size);
+ else
+ {
+ for (i = 0; i < data_size;)
+ {
+ if (nand->device->options & NAND_BUSWIDTH_16)
+ {
+ uint16_t data_buf = le_to_h_u16(data);
+ nand->controller->write_data(nand, data_buf);
+ data += 2;
+ i += 2;
+ }
+ else
+ {
+ nand->controller->write_data(nand, *data);
+ data += 1;
+ i += 1;
+ }
+ }
+ }
+ }
+
+ if (oob)
+ {
+ if (nand->controller->write_block_data != NULL)
+ (nand->controller->write_block_data)(nand, oob, oob_size);
+ else
+ {
+ for (i = 0; i < oob_size;)
+ {
+ if (nand->device->options & NAND_BUSWIDTH_16)
+ {
+ uint16_t oob_buf = le_to_h_u16(data);
+ nand->controller->write_data(nand, oob_buf);
+ oob += 2;
+ i += 2;
+ }
+ else
+ {
+ nand->controller->write_data(nand, *oob);
+ oob += 1;
+ i += 1;
+ }
+ }
+ }
+ }
+
+ nand->controller->command(nand, NAND_CMD_PAGEPROG);
+
+ retval = nand->controller->nand_ready ?
+ nand->controller->nand_ready(nand, 100) :
+ nand_poll_ready(nand, 100);
+ if (!retval)
+ return ERROR_NAND_OPERATION_TIMEOUT;
+
+ if ((retval = nand_read_status(nand, &status)) != ERROR_OK)
+ {
+ LOG_ERROR("couldn't read status");
+ return ERROR_NAND_OPERATION_FAILED;
+ }
+
+ if (status & NAND_STATUS_FAIL)
+ {
+ LOG_ERROR("write operation didn't pass, status: 0x%2.2x", status);
+ return ERROR_NAND_OPERATION_FAILED;
+ }
+
+ return ERROR_OK;
+}
+
--- /dev/null
+/***************************************************************************
+ * Copyright (C) 2007 by Dominic Rath <Dominic.Rath@gmx.de> *
+ * Copyright (C) 2002 Thomas Gleixner <tglx@linutronix.de> *
+ * Copyright (C) 2009 Zachary T Welch <zw@superlucidity.net> *
+ * *
+ * Partially based on drivers/mtd/nand_ids.c from Linux. *
+ * *
+ * 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/nand.h>
+#include "fileio.h"
+
+static struct nand_ecclayout nand_oob_16 = {
+ .eccbytes = 6,
+ .eccpos = {0, 1, 2, 3, 6, 7},
+ .oobfree = {
+ {.offset = 8,
+ . length = 8}}
+};
+
+static struct nand_ecclayout nand_oob_64 = {
+ .eccbytes = 24,
+ .eccpos = {
+ 40, 41, 42, 43, 44, 45, 46, 47,
+ 48, 49, 50, 51, 52, 53, 54, 55,
+ 56, 57, 58, 59, 60, 61, 62, 63},
+ .oobfree = {
+ {.offset = 2,
+ .length = 38}}
+};
+
+void nand_fileio_init(struct nand_fileio_state *state)
+{
+ memset(state, 0, sizeof(*state));
+ state->oob_format = NAND_OOB_NONE;
+}
+
+int nand_fileio_start(struct command_context *cmd_ctx,
+ struct nand_device *nand, const char *filename, int filemode,
+ struct nand_fileio_state *state)
+{
+ if (state->address % nand->page_size)
+ {
+ command_print(cmd_ctx, "only page-aligned addresses are supported");
+ return ERROR_COMMAND_SYNTAX_ERROR;
+ }
+
+ duration_start(&state->bench);
+
+ if (NULL != filename)
+ {
+ int retval = fileio_open(&state->fileio, filename, filemode, FILEIO_BINARY);
+ if (ERROR_OK != retval)
+ {
+ const char *msg = (FILEIO_READ == filemode) ? "read" : "write";
+ command_print(cmd_ctx, "failed to open '%s' for %s access",
+ filename, msg);
+ return retval;
+ }
+ state->file_opened = true;
+ }
+
+ if (!(state->oob_format & NAND_OOB_ONLY))
+ {
+ state->page_size = nand->page_size;
+ state->page = malloc(nand->page_size);
+ }
+
+ if (state->oob_format & (NAND_OOB_RAW | NAND_OOB_SW_ECC | NAND_OOB_SW_ECC_KW))
+ {
+ if (nand->page_size == 512)
+ {
+ state->oob_size = 16;
+ state->eccpos = nand_oob_16.eccpos;
+ }
+ else if (nand->page_size == 2048)
+ {
+ state->oob_size = 64;
+ state->eccpos = nand_oob_64.eccpos;
+ }
+ state->oob = malloc(state->oob_size);
+ }
+
+ return ERROR_OK;
+}
+int nand_fileio_cleanup(struct nand_fileio_state *state)
+{
+ if (state->file_opened)
+ fileio_close(&state->fileio);
+
+ if (state->oob)
+ {
+ free(state->oob);
+ state->oob = NULL;
+ }
+ if (state->page)
+ {
+ free(state->page);
+ state->page = NULL;
+ }
+ return ERROR_OK;
+}
+int nand_fileio_finish(struct nand_fileio_state *state)
+{
+ nand_fileio_cleanup(state);
+ return duration_measure(&state->bench);
+}
+
+COMMAND_HELPER(nand_fileio_parse_args, struct nand_fileio_state *state,
+ struct nand_device **dev, enum fileio_access filemode,
+ bool need_size, bool sw_ecc)
+{
+ nand_fileio_init(state);
+
+ unsigned minargs = need_size ? 4 : 3;
+ if (CMD_ARGC < minargs)
+ return ERROR_COMMAND_SYNTAX_ERROR;
+
+ struct nand_device *nand;
+ int retval = CALL_COMMAND_HANDLER(nand_command_get_device, 0, &nand);
+ if (ERROR_OK != retval)
+ return retval;
+
+ if (NULL == nand->device)
+ {
+ command_print(CMD_CTX, "#%s: not probed", CMD_ARGV[0]);
+ return ERROR_OK;
+ }
+
+ COMMAND_PARSE_NUMBER(u32, CMD_ARGV[2], state->address);
+ if (need_size)
+ {
+ COMMAND_PARSE_NUMBER(u32, CMD_ARGV[3], state->size);
+ if (state->size % nand->page_size)
+ {
+ command_print(CMD_CTX, "only page-aligned sizes are supported");
+ return ERROR_COMMAND_SYNTAX_ERROR;
+ }
+ }
+
+ if (CMD_ARGC > minargs)
+ {
+ for (unsigned i = minargs; i < CMD_ARGC; i++)
+ {
+ if (!strcmp(CMD_ARGV[i], "oob_raw"))
+ state->oob_format |= NAND_OOB_RAW;
+ else if (!strcmp(CMD_ARGV[i], "oob_only"))
+ state->oob_format |= NAND_OOB_RAW | NAND_OOB_ONLY;
+ else if (sw_ecc && !strcmp(CMD_ARGV[i], "oob_softecc"))
+ state->oob_format |= NAND_OOB_SW_ECC;
+ else if (sw_ecc && !strcmp(CMD_ARGV[i], "oob_softecc_kw"))
+ state->oob_format |= NAND_OOB_SW_ECC_KW;
+ else
+ {
+ command_print(CMD_CTX, "unknown option: %s", CMD_ARGV[i]);
+ return ERROR_COMMAND_SYNTAX_ERROR;
+ }
+ }
+ }
+
+ retval = nand_fileio_start(CMD_CTX, nand, CMD_ARGV[1], filemode, state);
+ if (ERROR_OK != retval)
+ return retval;
+
+ if (!need_size)
+ state->size = state->fileio.size;
+
+ *dev = nand;
+
+ return ERROR_OK;
+}
+
+/**
+ * @returns If no error occurred, returns number of bytes consumed;
+ * otherwise, returns a negative error code.)
+ */
+int nand_fileio_read(struct nand_device *nand, struct nand_fileio_state *s)
+{
+ size_t total_read = 0;
+ size_t one_read;
+
+ if (NULL != s->page)
+ {
+ fileio_read(&s->fileio, s->page_size, s->page, &one_read);
+ if (one_read < s->page_size)
+ memset(s->page + one_read, 0xff, s->page_size - one_read);
+ total_read += one_read;
+ }
+
+ if (s->oob_format & NAND_OOB_SW_ECC)
+ {
+ uint8_t ecc[3];
+ memset(s->oob, 0xff, s->oob_size);
+ for (uint32_t i = 0, j = 0; i < s->page_size; i += 256)
+ {
+ nand_calculate_ecc(nand, s->page + i, ecc);
+ s->oob[s->eccpos[j++]] = ecc[0];
+ s->oob[s->eccpos[j++]] = ecc[1];
+ s->oob[s->eccpos[j++]] = ecc[2];
+ }
+ }
+ else if (s->oob_format & NAND_OOB_SW_ECC_KW)
+ {
+ /*
+ * In this case eccpos is not used as
+ * the ECC data is always stored contigously
+ * at the end of the OOB area. It consists
+ * of 10 bytes per 512-byte data block.
+ */
+ uint8_t *ecc = s->oob + s->oob_size - s->page_size / 512 * 10;
+ memset(s->oob, 0xff, s->oob_size);
+ for (uint32_t i = 0; i < s->page_size; i += 512)
+ {
+ nand_calculate_ecc_kw(nand, s->page + i, ecc);
+ ecc += 10;
+ }
+ }
+ else if (NULL != s->oob)
+ {
+ fileio_read(&s->fileio, s->oob_size, s->oob, &one_read);
+ if (one_read < s->oob_size)
+ memset(s->oob + one_read, 0xff, s->oob_size - one_read);
+ total_read += one_read;
+ }
+ return total_read;
+}
+
--- /dev/null
+/***************************************************************************
+ * Copyright (C) 2009 Zachary T Welch <zw@superlucidity.net> *
+ * *
+ * 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. *
+ ***************************************************************************/
+#ifndef FLASH_NAND_FILEIO_H
+#define FLASH_NAND_FILEIO_H
+
+#include <helper/time_support.h>
+#include <helper/fileio.h>
+
+struct nand_fileio_state {
+ uint32_t address;
+ uint32_t size;
+
+ uint8_t *page;
+ uint32_t page_size;
+
+ enum oob_formats oob_format;
+ uint8_t *oob;
+ uint32_t oob_size;
+
+ const int *eccpos;
+
+ bool file_opened;
+ struct fileio fileio;
+
+ struct duration bench;
+};
+
+void nand_fileio_init(struct nand_fileio_state *state);
+int nand_fileio_start(struct command_context *cmd_ctx,
+ struct nand_device *nand, const char *filename, int filemode,
+ struct nand_fileio_state *state);
+int nand_fileio_cleanup(struct nand_fileio_state *state);
+int nand_fileio_finish(struct nand_fileio_state *state);
+
+COMMAND_HELPER(nand_fileio_parse_args, struct nand_fileio_state *state,
+ struct nand_device **dev, enum fileio_access filemode,
+ bool need_size, bool sw_ecc);
+
+int nand_fileio_read(struct nand_device *nand, struct nand_fileio_state *s);
+
+#endif // FLASH_NAND_FILEIO_H
--- /dev/null
+/***************************************************************************
+ * Copyright (C) 2009 Zachary T Welch <zw@superlucidity.net> *
+ * *
+ * 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. *
+ ***************************************************************************/
+#ifndef FLASH_NAND_IMP_H
+#define FLASH_NAND_IMP_H
+
+int nand_write_page(struct nand_device *nand,
+ uint32_t page, uint8_t *data, uint32_t data_size,
+ uint8_t *oob, uint32_t oob_size);
+
+int nand_read_page(struct nand_device *nand, uint32_t page,
+ uint8_t *data, uint32_t data_size,
+ uint8_t *oob, uint32_t oob_size);
+
+int nand_probe(struct nand_device *nand);
+int nand_erase(struct nand_device *nand, int first_block, int last_block);
+int nand_build_bbt(struct nand_device *nand, int first, int last);
+
+#endif // FLASH_NAND_IMP_H
--- /dev/null
+/***************************************************************************
+ * Copyright (C) 2007 by Dominic Rath <Dominic.Rath@gmx.de> *
+ * Copyright (C) 2002 Thomas Gleixner <tglx@linutronix.de> *
+ * Copyright (C) 2009 Zachary T Welch <zw@superlucidity.net> *
+ * *
+ * Partially based on drivers/mtd/nand_ids.c from Linux. *
+ * *
+ * 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/nand.h>
+#include "imp.h"
+#include "fileio.h"
+
+// to be removed
+extern struct nand_device *nand_devices;
+
+COMMAND_HANDLER(handle_nand_list_command)
+{
+ struct nand_device *p;
+ int i;
+
+ if (!nand_devices)
+ {
+ command_print(CMD_CTX, "no NAND flash devices configured");
+ return ERROR_OK;
+ }
+
+ for (p = nand_devices, i = 0; p; p = p->next, i++)
+ {
+ if (p->device)
+ command_print(CMD_CTX, "#%i: %s (%s) "
+ "pagesize: %i, buswidth: %i,\n\t"
+ "blocksize: %i, blocks: %i",
+ i, p->device->name, p->manufacturer->name,
+ p->page_size, p->bus_width,
+ p->erase_size, p->num_blocks);
+ else
+ command_print(CMD_CTX, "#%i: not probed", i);
+ }
+
+ return ERROR_OK;
+}
+
+COMMAND_HANDLER(handle_nand_info_command)
+{
+ int i = 0;
+ int j = 0;
+ int first = -1;
+ int last = -1;
+
+ switch (CMD_ARGC) {
+ default:
+ return ERROR_COMMAND_SYNTAX_ERROR;
+ case 1:
+ first = 0;
+ last = INT32_MAX;
+ break;
+ case 2:
+ COMMAND_PARSE_NUMBER(int, CMD_ARGV[1], i);
+ first = last = i;
+ i = 0;
+ break;
+ case 3:
+ COMMAND_PARSE_NUMBER(int, CMD_ARGV[1], first);
+ COMMAND_PARSE_NUMBER(int, CMD_ARGV[2], last);
+ break;
+ }
+
+ struct nand_device *p;
+ int retval = CALL_COMMAND_HANDLER(nand_command_get_device, 0, &p);
+ if (ERROR_OK != retval)
+ return retval;
+
+ if (NULL == p->device)
+ {
+ command_print(CMD_CTX, "#%s: not probed", CMD_ARGV[0]);
+ return ERROR_OK;
+ }
+
+ if (first >= p->num_blocks)
+ first = p->num_blocks - 1;
+
+ if (last >= p->num_blocks)
+ last = p->num_blocks - 1;
+
+ command_print(CMD_CTX, "#%i: %s (%s) pagesize: %i, buswidth: %i, erasesize: %i",
+ i++, p->device->name, p->manufacturer->name, p->page_size, p->bus_width, p->erase_size);
+
+ for (j = first; j <= last; j++)
+ {
+ char *erase_state, *bad_state;
+
+ if (p->blocks[j].is_erased == 0)
+ erase_state = "not erased";
+ else if (p->blocks[j].is_erased == 1)
+ erase_state = "erased";
+ else
+ erase_state = "erase state unknown";
+
+ if (p->blocks[j].is_bad == 0)
+ bad_state = "";
+ else if (p->blocks[j].is_bad == 1)
+ bad_state = " (marked bad)";
+ else
+ bad_state = " (block condition unknown)";
+
+ command_print(CMD_CTX,
+ "\t#%i: 0x%8.8" PRIx32 " (%" PRId32 "kB) %s%s",
+ j,
+ p->blocks[j].offset,
+ p->blocks[j].size / 1024,
+ erase_state,
+ bad_state);
+ }
+
+ return ERROR_OK;
+}
+
+COMMAND_HANDLER(handle_nand_probe_command)
+{
+ if (CMD_ARGC != 1)
+ {
+ return ERROR_COMMAND_SYNTAX_ERROR;
+ }
+
+ struct nand_device *p;
+ int retval = CALL_COMMAND_HANDLER(nand_command_get_device, 0, &p);
+ if (ERROR_OK != retval)
+ return retval;
+
+ if ((retval = nand_probe(p)) == ERROR_OK)
+ {
+ command_print(CMD_CTX, "NAND flash device '%s' found", p->device->name);
+ }
+ else if (retval == ERROR_NAND_OPERATION_FAILED)
+ {
+ command_print(CMD_CTX, "probing failed for NAND flash device");
+ }
+ else
+ {
+ command_print(CMD_CTX, "unknown error when probing NAND flash device");
+ }
+
+ return ERROR_OK;
+}
+
+COMMAND_HANDLER(handle_nand_erase_command)
+{
+ if (CMD_ARGC != 1 && CMD_ARGC != 3)
+ {
+ return ERROR_COMMAND_SYNTAX_ERROR;
+
+ }
+
+ struct nand_device *p;
+ int retval = CALL_COMMAND_HANDLER(nand_command_get_device, 0, &p);
+ if (ERROR_OK != retval)
+ return retval;
+
+ unsigned long offset;
+ unsigned long length;
+
+ /* erase specified part of the chip; or else everything */
+ if (CMD_ARGC == 3) {
+ unsigned long size = p->erase_size * p->num_blocks;
+
+ COMMAND_PARSE_NUMBER(ulong, CMD_ARGV[1], offset);
+ if ((offset % p->erase_size) != 0 || offset >= size)
+ return ERROR_INVALID_ARGUMENTS;
+
+ COMMAND_PARSE_NUMBER(ulong, CMD_ARGV[2], length);
+ if ((length == 0) || (length % p->erase_size) != 0
+ || (length + offset) > size)
+ return ERROR_INVALID_ARGUMENTS;
+
+ offset /= p->erase_size;
+ length /= p->erase_size;
+ } else {
+ offset = 0;
+ length = p->num_blocks;
+ }
+
+ retval = nand_erase(p, offset, offset + length - 1);
+ if (retval == ERROR_OK)
+ {
+ command_print(CMD_CTX, "erased blocks %lu to %lu "
+ "on NAND flash device #%s '%s'",
+ offset, offset + length,
+ CMD_ARGV[0], p->device->name);
+ }
+ else if (retval == ERROR_NAND_OPERATION_FAILED)
+ {
+ command_print(CMD_CTX, "erase failed");
+ }
+ else
+ {
+ command_print(CMD_CTX, "unknown error when erasing NAND flash device");
+ }
+
+ return ERROR_OK;
+}
+
+COMMAND_HANDLER(handle_nand_check_bad_blocks_command)
+{
+ int first = -1;
+ int last = -1;
+
+ if ((CMD_ARGC < 1) || (CMD_ARGC > 3) || (CMD_ARGC == 2))
+ {
+ return ERROR_COMMAND_SYNTAX_ERROR;
+
+ }
+
+ struct nand_device *p;
+ int retval = CALL_COMMAND_HANDLER(nand_command_get_device, 0, &p);
+ if (ERROR_OK != retval)
+ return retval;
+
+ if (CMD_ARGC == 3)
+ {
+ unsigned long offset;
+ unsigned long length;
+
+ COMMAND_PARSE_NUMBER(ulong, CMD_ARGV[1], offset);
+ if (offset % p->erase_size)
+ return ERROR_INVALID_ARGUMENTS;
+ offset /= p->erase_size;
+
+ COMMAND_PARSE_NUMBER(ulong, CMD_ARGV[2], length);
+ if (length % p->erase_size)
+ return ERROR_INVALID_ARGUMENTS;
+
+ length -= 1;
+ length /= p->erase_size;
+
+ first = offset;
+ last = offset + length;
+ }
+
+ retval = nand_build_bbt(p, first, last);
+ if (retval == ERROR_OK)
+ {
+ command_print(CMD_CTX, "checked NAND flash device for bad blocks, "
+ "use \"nand info\" command to list blocks");
+ }
+ else if (retval == ERROR_NAND_OPERATION_FAILED)
+ {
+ command_print(CMD_CTX, "error when checking for bad blocks on "
+ "NAND flash device");
+ }
+ else
+ {
+ command_print(CMD_CTX, "unknown error when checking for bad "
+ "blocks on NAND flash device");
+ }
+
+ return ERROR_OK;
+}
+
+COMMAND_HANDLER(handle_nand_write_command)
+{
+ struct nand_device *nand = NULL;
+ struct nand_fileio_state s;
+ int retval = CALL_COMMAND_HANDLER(nand_fileio_parse_args,
+ &s, &nand, FILEIO_READ, false, true);
+ if (ERROR_OK != retval)
+ return retval;
+
+ uint32_t total_bytes = s.size;
+ while (s.size > 0)
+ {
+ int bytes_read = nand_fileio_read(nand, &s);
+ if (bytes_read <= 0)
+ {
+ command_print(CMD_CTX, "error while reading file");
+ return nand_fileio_cleanup(&s);
+ }
+ s.size -= bytes_read;
+
+ retval = nand_write_page(nand, s.address / nand->page_size,
+ s.page, s.page_size, s.oob, s.oob_size);
+ if (ERROR_OK != retval)
+ {
+ command_print(CMD_CTX, "failed writing file %s "
+ "to NAND flash %s at offset 0x%8.8" PRIx32,
+ CMD_ARGV[1], CMD_ARGV[0], s.address);
+ return nand_fileio_cleanup(&s);
+ }
+ s.address += s.page_size;
+ }
+
+ if (nand_fileio_finish(&s))
+ {
+ command_print(CMD_CTX, "wrote file %s to NAND flash %s up to "
+ "offset 0x%8.8" PRIx32 " in %fs (%0.3f kb/s)",
+ CMD_ARGV[1], CMD_ARGV[0], s.address, duration_elapsed(&s.bench),
+ duration_kbps(&s.bench, total_bytes));
+ }
+ return ERROR_OK;
+}
+
+COMMAND_HANDLER(handle_nand_verify_command)
+{
+ struct nand_device *nand = NULL;
+ struct nand_fileio_state file;
+ int retval = CALL_COMMAND_HANDLER(nand_fileio_parse_args,
+ &file, &nand, FILEIO_READ, false, true);
+ if (ERROR_OK != retval)
+ return retval;
+
+ struct nand_fileio_state dev;
+ nand_fileio_init(&dev);
+ dev.address = file.address;
+ dev.size = file.size;
+ dev.oob_format = file.oob_format;
+ retval = nand_fileio_start(CMD_CTX, nand, NULL, FILEIO_NONE, &dev);
+ if (ERROR_OK != retval)
+ return retval;
+
+ while (file.size > 0)
+ {
+ int retval = nand_read_page(nand, dev.address / dev.page_size,
+ dev.page, dev.page_size, dev.oob, dev.oob_size);
+ if (ERROR_OK != retval)
+ {
+ command_print(CMD_CTX, "reading NAND flash page failed");
+ nand_fileio_cleanup(&dev);
+ return nand_fileio_cleanup(&file);
+ }
+
+ int bytes_read = nand_fileio_read(nand, &file);
+ if (bytes_read <= 0)
+ {
+ command_print(CMD_CTX, "error while reading file");
+ nand_fileio_cleanup(&dev);
+ return nand_fileio_cleanup(&file);
+ }
+
+ if ((dev.page && memcmp(dev.page, file.page, dev.page_size)) ||
+ (dev.oob && memcmp(dev.oob, file.oob, dev.oob_size)) )
+ {
+ command_print(CMD_CTX, "NAND flash contents differ "
+ "at 0x%8.8" PRIx32, dev.address);
+ nand_fileio_cleanup(&dev);
+ return nand_fileio_cleanup(&file);
+ }
+
+ file.size -= bytes_read;
+ dev.address += nand->page_size;
+ }
+
+ if (nand_fileio_finish(&file) == ERROR_OK)
+ {
+ command_print(CMD_CTX, "verified file %s in NAND flash %s "
+ "up to offset 0x%8.8" PRIx32 " in %fs (%0.3f kb/s)",
+ CMD_ARGV[1], CMD_ARGV[0], dev.address, duration_elapsed(&file.bench),
+ duration_kbps(&file.bench, dev.size));
+ }
+
+ return nand_fileio_cleanup(&dev);
+}
+
+COMMAND_HANDLER(handle_nand_dump_command)
+{
+ struct nand_device *nand = NULL;
+ struct nand_fileio_state s;
+ int retval = CALL_COMMAND_HANDLER(nand_fileio_parse_args,
+ &s, &nand, FILEIO_WRITE, true, false);
+ if (ERROR_OK != retval)
+ return retval;
+
+ while (s.size > 0)
+ {
+ size_t size_written;
+ int retval = nand_read_page(nand, s.address / nand->page_size,
+ s.page, s.page_size, s.oob, s.oob_size);
+ if (ERROR_OK != retval)
+ {
+ command_print(CMD_CTX, "reading NAND flash page failed");
+ return nand_fileio_cleanup(&s);
+ }
+
+ if (NULL != s.page)
+ fileio_write(&s.fileio, s.page_size, s.page, &size_written);
+
+ if (NULL != s.oob)
+ fileio_write(&s.fileio, s.oob_size, s.oob, &size_written);
+
+ s.size -= nand->page_size;
+ s.address += nand->page_size;
+ }
+
+ if (nand_fileio_finish(&s) == ERROR_OK)
+ {
+ command_print(CMD_CTX, "dumped %zu bytes in %fs (%0.3f kb/s)",
+ s.fileio.size, duration_elapsed(&s.bench),
+ duration_kbps(&s.bench, s.fileio.size));
+ }
+ return ERROR_OK;
+}
+
+COMMAND_HANDLER(handle_nand_raw_access_command)
+{
+ if ((CMD_ARGC < 1) || (CMD_ARGC > 2))
+ {
+ return ERROR_COMMAND_SYNTAX_ERROR;
+ }
+
+ struct nand_device *p;
+ int retval = CALL_COMMAND_HANDLER(nand_command_get_device, 0, &p);
+ if (ERROR_OK != retval)
+ return retval;
+
+ if (NULL == p->device)
+ {
+ command_print(CMD_CTX, "#%s: not probed", CMD_ARGV[0]);
+ return ERROR_OK;
+ }
+
+ if (CMD_ARGC == 2)
+ COMMAND_PARSE_ENABLE(CMD_ARGV[1], p->use_raw);
+
+ const char *msg = p->use_raw ? "enabled" : "disabled";
+ command_print(CMD_CTX, "raw access is %s", msg);
+
+ return ERROR_OK;
+}
+
+static const struct command_registration nand_exec_command_handlers[] = {
+ {
+ .name = "list",
+ .handler = &handle_nand_list_command,
+ .mode = COMMAND_EXEC,
+ .help = "list configured NAND flash devices",
+ },
+ {
+ .name = "info",
+ .handler = &handle_nand_info_command,
+ .mode = COMMAND_EXEC,
+ .usage = "<bank>",
+ .help = "print info about a NAND flash device",
+ },
+ {
+ .name = "probe",
+ .handler = &handle_nand_probe_command,
+ .mode = COMMAND_EXEC,
+ .usage = "<bank>",
+ .help = "identify NAND flash device <num>",
+
+ },
+ {
+ .name = "check_bad_blocks",
+ .handler = &handle_nand_check_bad_blocks_command,
+ .mode = COMMAND_EXEC,
+ .usage = "<bank> [<offset> <length>]",
+ .help = "check NAND flash device <num> for bad blocks",
+ },
+ {
+ .name = "erase",
+ .handler = &handle_nand_erase_command,
+ .mode = COMMAND_EXEC,
+ .usage = "<bank> [<offset> <length>]",
+ .help = "erase blocks on NAND flash device",
+ },
+ {
+ .name = "dump",
+ .handler = &handle_nand_dump_command,
+ .mode = COMMAND_EXEC,
+ .usage = "<bank> <filename> <offset> <length> "
+ "[oob_raw | oob_only]",
+ .help = "dump from NAND flash device",
+ },
+ {
+ .name = "verify",
+ .handler = &handle_nand_verify_command,
+ .mode = COMMAND_EXEC,
+ .usage = "<bank> <filename> <offset> "
+ "[oob_raw | oob_only | oob_softecc | oob_softecc_kw]",
+ .help = "verify NAND flash device",
+ },
+ {
+ .name = "write",
+ .handler = &handle_nand_write_command,
+ .mode = COMMAND_EXEC,
+ .usage = "<bank> <filename> <offset> "
+ "[oob_raw | oob_only | oob_softecc | oob_softecc_kw]",
+ .help = "write to NAND flash device",
+ },
+ {
+ .name = "raw_access",
+ .handler = &handle_nand_raw_access_command,
+ .mode = COMMAND_EXEC,
+ .usage = "<num> ['enable'|'disable']",
+ .help = "raw access to NAND flash device",
+ },
+ COMMAND_REGISTRATION_DONE
+};
+
+int nand_init(struct command_context *cmd_ctx)
+{
+ if (!nand_devices)
+ return ERROR_OK;
+ struct command *parent = command_find_in_context(cmd_ctx, "nand");
+ return register_commands(cmd_ctx, parent, nand_exec_command_handlers);
+}
+
+COMMAND_HANDLER(handle_nand_init_command)
+{
+ if (CMD_ARGC != 0)
+ return ERROR_COMMAND_SYNTAX_ERROR;
+
+ static bool nand_initialized = false;
+ if (nand_initialized)
+ {
+ LOG_INFO("'nand init' has already been called");
+ return ERROR_OK;
+ }
+ nand_initialized = true;
+
+ LOG_DEBUG("Initializing NAND devices...");
+ return nand_init(CMD_CTX);
+}
+int nand_list_walker(struct nand_flash_controller *c, void *x)
+{
+ struct command_context *cmd_ctx = (struct command_context *)x;
+ command_print(cmd_ctx, " %s", c->name);
+ return ERROR_OK;
+}
+COMMAND_HANDLER(handle_nand_list_drivers)
+{
+ command_print(CMD_CTX, "Available NAND flash controller drivers:");
+ return nand_driver_walk(&nand_list_walker, CMD_CTX);
+}
+
+static COMMAND_HELPER(create_nand_device, const char *bank_name,
+ struct nand_flash_controller *controller)
+{
+ if (NULL != controller->commands)
+ {
+ int retval = register_commands(CMD_CTX, NULL,
+ controller->commands);
+ if (ERROR_OK != retval)
+ return retval;
+ }
+ struct nand_device *c = malloc(sizeof(struct nand_device));
+
+ c->name = strdup(bank_name);
+ c->controller = controller;
+ c->controller_priv = NULL;
+ c->manufacturer = NULL;
+ c->device = NULL;
+ c->bus_width = 0;
+ c->address_cycles = 0;
+ c->page_size = 0;
+ c->use_raw = 0;
+ c->next = NULL;
+
+ int retval = CALL_COMMAND_HANDLER(controller->nand_device_command, c);
+ if (ERROR_OK != retval)
+ {
+ LOG_ERROR("'%s' driver rejected nand flash", controller->name);
+ free(c);
+ return ERROR_OK;
+ }
+
+ return ERROR_OK;
+}
+
+COMMAND_HANDLER(handle_nand_device_command)
+{
+ if (CMD_ARGC < 1)
+ {
+ LOG_ERROR("incomplete nand device configuration");
+ return ERROR_FLASH_BANK_INVALID;
+ }
+
+ // save name and increment (for compatibility) with drivers
+ const char *bank_name = *CMD_ARGV++;
+ CMD_ARGC--;
+
+ const char *driver_name = CMD_ARGV[0];
+ struct nand_flash_controller *controller;
+ controller = nand_driver_find_by_name(CMD_ARGV[0]);
+ if (NULL == controller)
+ {
+ LOG_ERROR("No valid NAND flash driver found (%s)", driver_name);
+ return CALL_COMMAND_HANDLER(handle_nand_list_drivers);
+ }
+ return CALL_COMMAND_HANDLER(create_nand_device, bank_name, controller);
+}
+
+static const struct command_registration nand_config_command_handlers[] = {
+ {
+ .name = "device",
+ .handler = &handle_nand_device_command,
+ .mode = COMMAND_CONFIG,
+ .help = "defines a new NAND bank",
+ },
+ {
+ .name = "drivers",
+ .handler = &handle_nand_list_drivers,
+ .mode = COMMAND_ANY,
+ .help = "lists available NAND drivers",
+ },
+ {
+ .name = "init",
+ .mode = COMMAND_CONFIG,
+ .handler = &handle_nand_init_command,
+ .help = "initialize NAND devices",
+ },
+ COMMAND_REGISTRATION_DONE
+};
+static const struct command_registration nand_command_handlers[] = {
+ {
+ .name = "nand",
+ .mode = COMMAND_ANY,
+ .help = "NAND flash command group",
+ .chain = nand_config_command_handlers,
+ },
+ COMMAND_REGISTRATION_DONE
+};
+
+int nand_register_commands(struct command_context *cmd_ctx)
+{
+ return register_commands(cmd_ctx, NULL, nand_command_handlers);
+}
+
+
projects / openocd / commitdiff