git.sur5r.net Git - openocd/blob - src/flash/nand/s3c24xx.h

   1 /***************************************************************************
   2  *   Copyright (C) 2007, 2008 by Ben Dooks                                 *
   3  *   ben@fluff.org                                                         *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program.  If not, see <http://www.gnu.org/licenses/>. *
  17  ***************************************************************************/
  18
  19 #ifndef S3C24xx_NAND_H
  20 #define S3C24xx_NAND_H
  21
  22 /*
  23  * S3C24XX Series OpenOCD NAND Flash controller support.
  24  *
  25  * Many thanks to Simtec Electronics for sponsoring this work.
  26  */
  27
  28 #include "imp.h"
  29 #include "s3c24xx_regs.h"
  30 #include <target/target.h>
  31
  32 struct s3c24xx_nand_controller {
  33         /* register addresses */
  34         uint32_t                 cmd;
  35         uint32_t                 addr;
  36         uint32_t                 data;
  37         uint32_t                 nfstat;
  38 };
  39
  40 /* Default to using the un-translated NAND register based address */
  41 #undef S3C2410_NFREG
  42 #define S3C2410_NFREG(x) ((x) + 0x4e000000)
  43
  44 #define S3C24XX_DEVICE_COMMAND() \
  45                 COMMAND_HELPER(s3c24xx_nand_device_command, \
  46                                 struct nand_device *nand, \
  47                                 struct s3c24xx_nand_controller **info)
  48
  49 S3C24XX_DEVICE_COMMAND();
  50
  51 #define CALL_S3C24XX_DEVICE_COMMAND(d, i) \
  52         do { \
  53                 int retval = CALL_COMMAND_HANDLER(s3c24xx_nand_device_command, d, i); \
  54                 if (ERROR_OK != retval) \
  55                         return retval; \
  56         } while (0)
  57
  58 int s3c24xx_reset(struct nand_device *nand);
  59
  60 int s3c24xx_command(struct nand_device *nand, uint8_t command);
  61 int s3c24xx_address(struct nand_device *nand, uint8_t address);
  62
  63 int s3c24xx_write_data(struct nand_device *nand, uint16_t data);
  64 int s3c24xx_read_data(struct nand_device *nand, void *data);
  65
  66 #define s3c24xx_write_page NULL
  67 #define s3c24xx_read_page NULL
  68
  69 /* code shared between different controllers */
  70
  71 int s3c2440_nand_ready(struct nand_device *nand, int timeout);
  72
  73 int s3c2440_read_block_data(struct nand_device *nand,
  74                 uint8_t *data, int data_size);
  75 int s3c2440_write_block_data(struct nand_device *nand,
  76                 uint8_t *data, int data_size);
  77
  78 #endif /* S3C24xx_NAND_H */