6cbdc6c053b78d823d2b9225cca8430fabcfdef4
[openocd.git] / src / flash / nand / s3c2412.c
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 /*
22 * S3C2412 OpenOCD NAND Flash controller support.
23 *
24 * Many thanks to Simtec Electronics for sponsoring this work.
25 */
26
27 #ifdef HAVE_CONFIG_H
28 #include "config.h"
29 #endif
30
31 #include "s3c24xx.h"
32
33 NAND_DEVICE_COMMAND_HANDLER(s3c2412_nand_device_command)
34 {
35 struct s3c24xx_nand_controller *info;
36 CALL_S3C24XX_DEVICE_COMMAND(nand, &info);
37
38 /* fill in the address fields for the core device */
39 info->cmd = S3C2440_NFCMD;
40 info->addr = S3C2440_NFADDR;
41 info->data = S3C2440_NFDATA;
42 info->nfstat = S3C2412_NFSTAT;
43
44 return ERROR_OK;
45 }
46
47 static int s3c2412_init(struct nand_device *nand)
48 {
49 struct target *target = nand->target;
50
51 target_write_u32(target, S3C2410_NFCONF,
52 S3C2440_NFCONF_TACLS(3) |
53 S3C2440_NFCONF_TWRPH0(7) |
54 S3C2440_NFCONF_TWRPH1(7));
55
56 target_write_u32(target, S3C2440_NFCONT,
57 S3C2412_NFCONT_INIT_MAIN_ECC |
58 S3C2440_NFCONT_ENABLE);
59
60 return ERROR_OK;
61 }
62
63 struct nand_flash_controller s3c2412_nand_controller = {
64 .name = "s3c2412",
65 .nand_device_command = &s3c2412_nand_device_command,
66 .init = &s3c2412_init,
67 .reset = &s3c24xx_reset,
68 .command = &s3c24xx_command,
69 .address = &s3c24xx_address,
70 .write_data = &s3c24xx_write_data,
71 .read_data = &s3c24xx_read_data,
72 .write_page = s3c24xx_write_page,
73 .read_page = s3c24xx_read_page,
74 .write_block_data = &s3c2440_write_block_data,
75 .read_block_data = &s3c2440_read_block_data,
76 .nand_ready = &s3c2440_nand_ready,
77 };