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  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, write to the *
  17. * Free Software Foundation, Inc., *
  18. * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. *
  19. ***************************************************************************/
  20. /*
  21. * S3C2412 OpenOCD NAND Flash controller support.
  22. *
  23. * Many thanks to Simtec Electronics for sponsoring this work.
  24. */
  25. #ifdef HAVE_CONFIG_H
  26. #include "config.h"
  27. #endif
  28. #include "s3c24xx.h"
  29. NAND_DEVICE_COMMAND_HANDLER(s3c2412_nand_device_command)
  30. {
  31. struct s3c24xx_nand_controller *info;
  32. CALL_S3C24XX_DEVICE_COMMAND(nand, &info);
  33. /* fill in the address fields for the core device */
  34. info->cmd = S3C2440_NFCMD;
  35. info->addr = S3C2440_NFADDR;
  36. info->data = S3C2440_NFDATA;
  37. info->nfstat = S3C2412_NFSTAT;
  38. return ERROR_OK;
  39. }
  40. static int s3c2412_init(struct nand_device *nand)
  41. {
  42. struct target *target = nand->target;
  43. target_write_u32(target, S3C2410_NFCONF,
  44. S3C2440_NFCONF_TACLS(3) |
  45. S3C2440_NFCONF_TWRPH0(7) |
  46. S3C2440_NFCONF_TWRPH1(7));
  47. target_write_u32(target, S3C2440_NFCONT,
  48. S3C2412_NFCONT_INIT_MAIN_ECC |
  49. S3C2440_NFCONT_ENABLE);
  50. return ERROR_OK;
  51. }
  52. struct nand_flash_controller s3c2412_nand_controller = {
  53. .name = "s3c2412",
  54. .nand_device_command = &s3c2412_nand_device_command,
  55. .init = &s3c2412_init,
  56. .reset = &s3c24xx_reset,
  57. .command = &s3c24xx_command,
  58. .address = &s3c24xx_address,
  59. .write_data = &s3c24xx_write_data,
  60. .read_data = &s3c24xx_read_data,
  61. .write_page = s3c24xx_write_page,
  62. .read_page = s3c24xx_read_page,
  63. .write_block_data = &s3c2440_write_block_data,
  64. .read_block_data = &s3c2440_read_block_data,
  65. .nand_ready = &s3c2440_nand_ready,
  66. };