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- /***************************************************************************
- * Copyright (C) 2007, 2008 by Ben Dooks *
- * ben@fluff.org *
- * *
- * 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. *
- ***************************************************************************/
-
- /*
- * S3C24XX Series OpenOCD NAND Flash controller support.
- *
- * Many thanks to Simtec Electronics for sponsoring this work.
- */
-
- #ifdef HAVE_CONFIG_H
- #include "config.h"
- #endif
-
- #include "s3c24xx_nand.h"
-
-
- s3c24xx_nand_controller_t *
- s3c24xx_nand_device_command(struct command_context_s *cmd_ctx, char *cmd,
- char **args, int argc,
- struct nand_device_s *device)
- {
- s3c24xx_nand_controller_t *s3c24xx_info;
-
- s3c24xx_info = malloc(sizeof(s3c24xx_nand_controller_t));
- if (s3c24xx_info == NULL) {
- LOG_ERROR("no memory for nand controller\n");
- return NULL;
- }
-
- device->controller_priv = s3c24xx_info;
-
- s3c24xx_info->target = get_target_by_num(strtoul(args[1], NULL, 0));
- if (s3c24xx_info->target == NULL) {
- LOG_ERROR("no target '%s' configured", args[1]);
- return NULL;
- }
-
- return s3c24xx_info;
- }
-
- int s3c24xx_register_commands(struct command_context_s *cmd_ctx)
- {
- return ERROR_OK;
- }
-
- int s3c24xx_reset(struct nand_device_s *device)
- {
- s3c24xx_nand_controller_t *s3c24xx_info = device->controller_priv;
- target_t *target = s3c24xx_info->target;
-
- if (target->state != TARGET_HALTED) {
- LOG_ERROR("target must be halted to use S3C24XX NAND flash controller");
- return ERROR_NAND_OPERATION_FAILED;
- }
-
- target_write_u32(target, s3c24xx_info->cmd, 0xff);
-
- return ERROR_OK;
- }
-
- int s3c24xx_command(struct nand_device_s *device, u8 command)
- {
- s3c24xx_nand_controller_t *s3c24xx_info = device->controller_priv;
- target_t *target = s3c24xx_info->target;
-
- if (target->state != TARGET_HALTED) {
- LOG_ERROR("target must be halted to use S3C24XX NAND flash controller");
- return ERROR_NAND_OPERATION_FAILED;
- }
-
- target_write_u16(target, s3c24xx_info->cmd, command);
- return ERROR_OK;
- }
-
-
- int s3c24xx_address(struct nand_device_s *device, u8 address)
- {
- s3c24xx_nand_controller_t *s3c24xx_info = device->controller_priv;
- target_t *target = s3c24xx_info->target;
-
- if (target->state != TARGET_HALTED) {
- LOG_ERROR("target must be halted to use S3C24XX NAND flash controller");
- return ERROR_NAND_OPERATION_FAILED;
- }
-
- target_write_u16(target, s3c24xx_info->addr, address);
- return ERROR_OK;
- }
-
- int s3c24xx_write_data(struct nand_device_s *device, u16 data)
- {
- s3c24xx_nand_controller_t *s3c24xx_info = device->controller_priv;
- target_t *target = s3c24xx_info->target;
-
- if (target->state != TARGET_HALTED) {
- LOG_ERROR("target must be halted to use S3C24XX NAND flash controller");
- return ERROR_NAND_OPERATION_FAILED;
- }
-
- target_write_u8(target, s3c24xx_info->data, data);
- return ERROR_OK;
- }
-
- int s3c24xx_read_data(struct nand_device_s *device, void *data)
- {
- s3c24xx_nand_controller_t *s3c24xx_info = device->controller_priv;
- target_t *target = s3c24xx_info->target;
-
- if (target->state != TARGET_HALTED) {
- LOG_ERROR("target must be halted to use S3C24XX NAND flash controller");
- return ERROR_NAND_OPERATION_FAILED;
- }
-
- target_read_u8(target, s3c24xx_info->data, data);
- return ERROR_OK;
- }
-
- int s3c24xx_controller_ready(struct nand_device_s *device, int timeout)
- {
- return 1;
- }
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