1 /***************************************************************************
2 * Copyright (C) 2007, 2008 by Ben Dooks *
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. *
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. *
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 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
19 ***************************************************************************/
22 * S3C2443 OpenOCD NAND Flash controller support.
24 * Many thanks to Simtec Electronics for sponsoring this work.
31 #include "s3c24xx_nand.h"
34 static int s3c2443_nand_device_command(struct command_context_s *cmd_ctx, char *cmd,
35 char **args, int argc,
36 struct nand_device_s *device)
38 s3c24xx_nand_controller_t *info;
40 info = s3c24xx_nand_device_command(cmd_ctx, cmd, args, argc, device);
42 return ERROR_NAND_DEVICE_INVALID;
45 /* fill in the address fields for the core device */
46 info->cmd = S3C2440_NFCMD;
47 info->addr = S3C2440_NFADDR;
48 info->data = S3C2440_NFDATA;
49 info->nfstat = S3C2412_NFSTAT;
54 static int s3c2443_init(struct nand_device_s *device)
56 s3c24xx_nand_controller_t *s3c24xx_info = device->controller_priv;
57 target_t *target = s3c24xx_info->target;
59 target_write_u32(target, S3C2410_NFCONF,
60 S3C2440_NFCONF_TACLS(3) |
61 S3C2440_NFCONF_TWRPH0(7) |
62 S3C2440_NFCONF_TWRPH1(7));
64 target_write_u32(target, S3C2440_NFCONT,
65 S3C2412_NFCONT_INIT_MAIN_ECC |
66 S3C2440_NFCONT_ENABLE);
71 nand_flash_controller_t s3c2443_nand_controller = {
73 .nand_device_command = &s3c2443_nand_device_command,
74 .register_commands = &s3c24xx_register_commands,
75 .init = &s3c2443_init,
76 .reset = &s3c24xx_reset,
77 .command = &s3c24xx_command,
78 .address = &s3c24xx_address,
79 .write_data = &s3c24xx_write_data,
80 .read_data = &s3c24xx_read_data,
81 .write_page = s3c24xx_write_page,
82 .read_page = s3c24xx_read_page,
83 .write_block_data = &s3c2440_write_block_data,
84 .read_block_data = &s3c2440_read_block_data,
85 .controller_ready = &s3c24xx_controller_ready,
86 .nand_ready = &s3c2440_nand_ready,