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 /*
20 * S3C2412 OpenOCD NAND Flash controller support.
21 *
22 * Many thanks to Simtec Electronics for sponsoring this work.
23 */
24
25 #ifdef HAVE_CONFIG_H
26 #include "config.h"
27 #endif
28
29 #include "s3c24xx.h"
30
NAND_DEVICE_COMMAND_HANDLER(s3c2412_nand_device_command)31 NAND_DEVICE_COMMAND_HANDLER(s3c2412_nand_device_command)
32 {
33 struct s3c24xx_nand_controller *info;
34 CALL_S3C24XX_DEVICE_COMMAND(nand, &info);
35
36 /* fill in the address fields for the core device */
37 info->cmd = S3C2440_NFCMD;
38 info->addr = S3C2440_NFADDR;
39 info->data = S3C2440_NFDATA;
40 info->nfstat = S3C2412_NFSTAT;
41
42 return ERROR_OK;
43 }
44
s3c2412_init(struct nand_device * nand)45 static int s3c2412_init(struct nand_device *nand)
46 {
47 struct target *target = nand->target;
48
49 target_write_u32(target, S3C2410_NFCONF,
50 S3C2440_NFCONF_TACLS(3) |
51 S3C2440_NFCONF_TWRPH0(7) |
52 S3C2440_NFCONF_TWRPH1(7));
53
54 target_write_u32(target, S3C2440_NFCONT,
55 S3C2412_NFCONT_INIT_MAIN_ECC |
56 S3C2440_NFCONT_ENABLE);
57
58 return ERROR_OK;
59 }
60
61 struct nand_flash_controller s3c2412_nand_controller = {
62 .name = "s3c2412",
63 .nand_device_command = &s3c2412_nand_device_command,
64 .init = &s3c2412_init,
65 .reset = &s3c24xx_reset,
66 .command = &s3c24xx_command,
67 .address = &s3c24xx_address,
68 .write_data = &s3c24xx_write_data,
69 .read_data = &s3c24xx_read_data,
70 .write_page = s3c24xx_write_page,
71 .read_page = s3c24xx_read_page,
72 .write_block_data = &s3c2440_write_block_data,
73 .read_block_data = &s3c2440_read_block_data,
74 .nand_ready = &s3c2440_nand_ready,
75 };
76