src/flash/nand/s3c2412.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2
   3 /***************************************************************************
   4  *   Copyright (C) 2007, 2008 by Ben Dooks                                 *
   5  *   ben@fluff.org                                                         *
   6  ***************************************************************************/
   7
   8 /*
   9  * S3C2412 OpenOCD NAND Flash controller support.
  10  *
  11  * Many thanks to Simtec Electronics for sponsoring this work.
  12  */
  13
  14 #ifdef HAVE_CONFIG_H
  15 #include "config.h"
  16 #endif
  17
  18 #include "s3c24xx.h"
  19
  20 NAND_DEVICE_COMMAND_HANDLER(s3c2412_nand_device_command)
  21 {
  22         struct s3c24xx_nand_controller *info;
  23         CALL_S3C24XX_DEVICE_COMMAND(nand, &info);
  24
  25         /* fill in the address fields for the core device */
  26         info->cmd = S3C2440_NFCMD;
  27         info->addr = S3C2440_NFADDR;
  28         info->data = S3C2440_NFDATA;
  29         info->nfstat = S3C2412_NFSTAT;
  30
  31         return ERROR_OK;
  32 }
  33
  34 static int s3c2412_init(struct nand_device *nand)
  35 {
  36         struct target *target = nand->target;
  37
  38         target_write_u32(target, S3C2410_NFCONF,
  39                          S3C2440_NFCONF_TACLS(3) |
  40                          S3C2440_NFCONF_TWRPH0(7) |
  41                          S3C2440_NFCONF_TWRPH1(7));
  42
  43         target_write_u32(target, S3C2440_NFCONT,
  44                          S3C2412_NFCONT_INIT_MAIN_ECC |
  45                          S3C2440_NFCONT_ENABLE);
  46
  47         return ERROR_OK;
  48 }
  49
  50 struct nand_flash_controller s3c2412_nand_controller = {
  51         .name = "s3c2412",
  52         .nand_device_command = &s3c2412_nand_device_command,
  53         .init = &s3c2412_init,
  54         .reset = &s3c24xx_reset,
  55         .command = &s3c24xx_command,
  56         .address = &s3c24xx_address,
  57         .write_data = &s3c24xx_write_data,
  58         .read_data = &s3c24xx_read_data,
  59         .write_page = s3c24xx_write_page,
  60         .read_page = s3c24xx_read_page,
  61         .write_block_data = &s3c2440_write_block_data,
  62         .read_block_data = &s3c2440_read_block_data,
  63         .nand_ready = &s3c2440_nand_ready,
  64 };