git.gag.com Git - fw/openocd/blob - src/flash/nand/s3c6400.c

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2
   3 /***************************************************************************
   4  *   Copyright (C) 2010 by Peter Korsgaard <jacmet@sunsite.dk>             *
   5  *   Heavily based on s3c2412.c by Ben Dooks <ben@fluff.org>               *
   6  ***************************************************************************/
   7
   8 #ifdef HAVE_CONFIG_H
   9 #include "config.h"
  10 #endif
  11
  12 #include "s3c24xx.h"
  13 /* s3c64xx uses another base address for the nand controller than 24xx */
  14 #undef S3C2410_NFREG
  15 #define S3C2410_NFREG(x) ((x) + 0x70200000)
  16
  17 NAND_DEVICE_COMMAND_HANDLER(s3c6400_nand_device_command)
  18 {
  19         struct s3c24xx_nand_controller *info;
  20         CALL_S3C24XX_DEVICE_COMMAND(nand, &info);
  21
  22         /* fill in the address fields for the core device */
  23         info->cmd = S3C2440_NFCMD;
  24         info->addr = S3C2440_NFADDR;
  25         info->data = S3C2440_NFDATA;
  26         info->nfstat = S3C2412_NFSTAT;
  27
  28         return ERROR_OK;
  29 }
  30
  31 static int s3c6400_init(struct nand_device *nand)
  32 {
  33         struct target *target = nand->target;
  34
  35         target_write_u32(target, S3C2410_NFCONF,
  36                          S3C2440_NFCONF_TACLS(3) |
  37                          S3C2440_NFCONF_TWRPH0(7) |
  38                          S3C2440_NFCONF_TWRPH1(7) | 4);
  39
  40         target_write_u32(target, S3C2440_NFCONT,
  41                          S3C2412_NFCONT_INIT_MAIN_ECC |
  42                          S3C2440_NFCONT_ENABLE);
  43
  44         return ERROR_OK;
  45 }
  46
  47 struct nand_flash_controller s3c6400_nand_controller = {
  48         .name = "s3c6400",
  49         .nand_device_command = &s3c6400_nand_device_command,
  50         .init = &s3c6400_init,
  51         .reset = &s3c24xx_reset,
  52         .command = &s3c24xx_command,
  53         .address = &s3c24xx_address,
  54         .write_data = &s3c24xx_write_data,
  55         .read_data = &s3c24xx_read_data,
  56         .write_page = s3c24xx_write_page,
  57         .read_page = s3c24xx_read_page,
  58         .write_block_data = &s3c2440_write_block_data,
  59         .read_block_data = &s3c2440_read_block_data,
  60         .nand_ready = &s3c2440_nand_ready,
  61 };