Remove FSF address from GPL notices
[openocd.git] / src / flash / nand / s3c24xx.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, see <http://www.gnu.org/licenses/>. *
17 ***************************************************************************/
18
19 /*
20 * S3C24XX Series 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
31 S3C24XX_DEVICE_COMMAND()
32 {
33 *info = NULL;
34
35 struct s3c24xx_nand_controller *s3c24xx_info;
36 s3c24xx_info = malloc(sizeof(struct s3c24xx_nand_controller));
37 if (s3c24xx_info == NULL) {
38 LOG_ERROR("no memory for nand controller");
39 return -ENOMEM;
40 }
41
42 nand->controller_priv = s3c24xx_info;
43 *info = s3c24xx_info;
44
45 return ERROR_OK;
46 }
47
48 int s3c24xx_reset(struct nand_device *nand)
49 {
50 struct s3c24xx_nand_controller *s3c24xx_info = nand->controller_priv;
51 struct target *target = nand->target;
52
53 if (target->state != TARGET_HALTED) {
54 LOG_ERROR("target must be halted to use S3C24XX NAND flash controller");
55 return ERROR_NAND_OPERATION_FAILED;
56 }
57
58 target_write_u32(target, s3c24xx_info->cmd, 0xff);
59
60 return ERROR_OK;
61 }
62
63 int s3c24xx_command(struct nand_device *nand, uint8_t command)
64 {
65 struct s3c24xx_nand_controller *s3c24xx_info = nand->controller_priv;
66 struct target *target = nand->target;
67
68 if (target->state != TARGET_HALTED) {
69 LOG_ERROR("target must be halted to use S3C24XX NAND flash controller");
70 return ERROR_NAND_OPERATION_FAILED;
71 }
72
73 target_write_u16(target, s3c24xx_info->cmd, command);
74 return ERROR_OK;
75 }
76
77 int s3c24xx_address(struct nand_device *nand, uint8_t address)
78 {
79 struct s3c24xx_nand_controller *s3c24xx_info = nand->controller_priv;
80 struct target *target = nand->target;
81
82 if (target->state != TARGET_HALTED) {
83 LOG_ERROR("target must be halted to use S3C24XX NAND flash controller");
84 return ERROR_NAND_OPERATION_FAILED;
85 }
86
87 target_write_u16(target, s3c24xx_info->addr, address);
88 return ERROR_OK;
89 }
90
91 int s3c24xx_write_data(struct nand_device *nand, uint16_t data)
92 {
93 struct s3c24xx_nand_controller *s3c24xx_info = nand->controller_priv;
94 struct target *target = nand->target;
95
96 if (target->state != TARGET_HALTED) {
97 LOG_ERROR("target must be halted to use S3C24XX NAND flash controller");
98 return ERROR_NAND_OPERATION_FAILED;
99 }
100
101 target_write_u8(target, s3c24xx_info->data, data);
102 return ERROR_OK;
103 }
104
105 int s3c24xx_read_data(struct nand_device *nand, void *data)
106 {
107 struct s3c24xx_nand_controller *s3c24xx_info = nand->controller_priv;
108 struct target *target = nand->target;
109
110 if (target->state != TARGET_HALTED) {
111 LOG_ERROR("target must be halted to use S3C24XX NAND flash controller");
112 return ERROR_NAND_OPERATION_FAILED;
113 }
114
115 target_read_u8(target, s3c24xx_info->data, data);
116 return ERROR_OK;
117 }