build: cleanup src/pld directory
[openocd.git] / src / pld / virtex2.c
1 /***************************************************************************
2 * Copyright (C) 2006 by Dominic Rath *
3 * Dominic.Rath@gmx.de *
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 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
19 ***************************************************************************/
20
21 #ifdef HAVE_CONFIG_H
22 #include "config.h"
23 #endif
24
25 #include "virtex2.h"
26 #include "xilinx_bit.h"
27 #include "pld.h"
28
29 static int virtex2_set_instr(struct jtag_tap *tap, uint32_t new_instr)
30 {
31 if (tap == NULL)
32 return ERROR_FAIL;
33
34 if (buf_get_u32(tap->cur_instr, 0, tap->ir_length) != new_instr) {
35 struct scan_field field;
36
37 field.num_bits = tap->ir_length;
38 void *t = calloc(DIV_ROUND_UP(field.num_bits, 8), 1);
39 field.out_value = t;
40 buf_set_u32(t, 0, field.num_bits, new_instr);
41 field.in_value = NULL;
42
43 jtag_add_ir_scan(tap, &field, TAP_IDLE);
44
45 free(t);
46 }
47
48 return ERROR_OK;
49 }
50
51 static int virtex2_send_32(struct pld_device *pld_device,
52 int num_words, uint32_t *words)
53 {
54 struct virtex2_pld_device *virtex2_info = pld_device->driver_priv;
55 struct scan_field scan_field;
56 uint8_t *values;
57 int i;
58
59 values = malloc(num_words * 4);
60
61 scan_field.num_bits = num_words * 32;
62 scan_field.out_value = values;
63 scan_field.in_value = NULL;
64
65 for (i = 0; i < num_words; i++)
66 buf_set_u32(values + 4 * i, 0, 32, flip_u32(*words++, 32));
67
68 virtex2_set_instr(virtex2_info->tap, 0x5); /* CFG_IN */
69
70 jtag_add_dr_scan(virtex2_info->tap, 1, &scan_field, TAP_DRPAUSE);
71
72 free(values);
73
74 return ERROR_OK;
75 }
76
77 static inline void virtexflip32(jtag_callback_data_t arg)
78 {
79 uint8_t *in = (uint8_t *)arg;
80 *((uint32_t *)arg) = flip_u32(le_to_h_u32(in), 32);
81 }
82
83 static int virtex2_receive_32(struct pld_device *pld_device,
84 int num_words, uint32_t *words)
85 {
86 struct virtex2_pld_device *virtex2_info = pld_device->driver_priv;
87 struct scan_field scan_field;
88
89 scan_field.num_bits = 32;
90 scan_field.out_value = NULL;
91 scan_field.in_value = NULL;
92
93 virtex2_set_instr(virtex2_info->tap, 0x4); /* CFG_OUT */
94
95 while (num_words--) {
96 scan_field.in_value = (uint8_t *)words;
97
98 jtag_add_dr_scan(virtex2_info->tap, 1, &scan_field, TAP_DRPAUSE);
99
100 jtag_add_callback(virtexflip32, (jtag_callback_data_t)words);
101
102 words++;
103 }
104
105 return ERROR_OK;
106 }
107
108 static int virtex2_read_stat(struct pld_device *pld_device, uint32_t *status)
109 {
110 uint32_t data[5];
111
112 jtag_add_tlr();
113
114 data[0] = 0xaa995566; /* synch word */
115 data[1] = 0x2800E001; /* Type 1, read, address 7, 1 word */
116 data[2] = 0x20000000; /* NOOP (Type 1, read, address 0, 0 words */
117 data[3] = 0x20000000; /* NOOP */
118 data[4] = 0x20000000; /* NOOP */
119 virtex2_send_32(pld_device, 5, data);
120
121 virtex2_receive_32(pld_device, 1, status);
122
123 jtag_execute_queue();
124
125 LOG_DEBUG("status: 0x%8.8" PRIx32 "", *status);
126
127 return ERROR_OK;
128 }
129
130 static int virtex2_load(struct pld_device *pld_device, const char *filename)
131 {
132 struct virtex2_pld_device *virtex2_info = pld_device->driver_priv;
133 struct xilinx_bit_file bit_file;
134 int retval;
135 unsigned int i;
136 struct scan_field field;
137
138 field.in_value = NULL;
139
140 retval = xilinx_read_bit_file(&bit_file, filename);
141 if (retval != ERROR_OK)
142 return retval;
143
144 virtex2_set_instr(virtex2_info->tap, 0xb); /* JPROG_B */
145 jtag_execute_queue();
146 jtag_add_sleep(1000);
147
148 virtex2_set_instr(virtex2_info->tap, 0x5); /* CFG_IN */
149 jtag_execute_queue();
150
151 for (i = 0; i < bit_file.length; i++)
152 bit_file.data[i] = flip_u32(bit_file.data[i], 8);
153
154 field.num_bits = bit_file.length * 8;
155 field.out_value = bit_file.data;
156
157 jtag_add_dr_scan(virtex2_info->tap, 1, &field, TAP_DRPAUSE);
158 jtag_execute_queue();
159
160 jtag_add_tlr();
161
162 virtex2_set_instr(virtex2_info->tap, 0xc); /* JSTART */
163 jtag_add_runtest(13, TAP_IDLE);
164 virtex2_set_instr(virtex2_info->tap, 0x3f); /* BYPASS */
165 virtex2_set_instr(virtex2_info->tap, 0x3f); /* BYPASS */
166 virtex2_set_instr(virtex2_info->tap, 0xc); /* JSTART */
167 jtag_add_runtest(13, TAP_IDLE);
168 virtex2_set_instr(virtex2_info->tap, 0x3f); /* BYPASS */
169 jtag_execute_queue();
170
171 return ERROR_OK;
172 }
173
174 COMMAND_HANDLER(virtex2_handle_read_stat_command)
175 {
176 struct pld_device *device;
177 uint32_t status;
178
179 if (CMD_ARGC < 1)
180 return ERROR_COMMAND_SYNTAX_ERROR;
181
182 unsigned dev_id;
183 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[0], dev_id);
184 device = get_pld_device_by_num(dev_id);
185 if (!device) {
186 command_print(CMD_CTX, "pld device '#%s' is out of bounds", CMD_ARGV[0]);
187 return ERROR_OK;
188 }
189
190 virtex2_read_stat(device, &status);
191
192 command_print(CMD_CTX, "virtex2 status register: 0x%8.8" PRIx32 "", status);
193
194 return ERROR_OK;
195 }
196
197 PLD_DEVICE_COMMAND_HANDLER(virtex2_pld_device_command)
198 {
199 struct jtag_tap *tap;
200
201 struct virtex2_pld_device *virtex2_info;
202
203 if (CMD_ARGC < 2)
204 return ERROR_COMMAND_SYNTAX_ERROR;
205
206 tap = jtag_tap_by_string(CMD_ARGV[1]);
207 if (tap == NULL) {
208 command_print(CMD_CTX, "Tap: %s does not exist", CMD_ARGV[1]);
209 return ERROR_OK;
210 }
211
212 virtex2_info = malloc(sizeof(struct virtex2_pld_device));
213 virtex2_info->tap = tap;
214
215 pld->driver_priv = virtex2_info;
216
217 return ERROR_OK;
218 }
219
220 static const struct command_registration virtex2_exec_command_handlers[] = {
221 {
222 .name = "read_stat",
223 .mode = COMMAND_EXEC,
224 .handler = virtex2_handle_read_stat_command,
225 .help = "read status register",
226 .usage = "pld_num",
227 },
228 COMMAND_REGISTRATION_DONE
229 };
230 static const struct command_registration virtex2_command_handler[] = {
231 {
232 .name = "virtex2",
233 .mode = COMMAND_ANY,
234 .help = "Virtex-II specific commands",
235 .usage = "",
236 .chain = virtex2_exec_command_handlers,
237 },
238 COMMAND_REGISTRATION_DONE
239 };
240
241 struct pld_driver virtex2_pld = {
242 .name = "virtex2",
243 .commands = virtex2_command_handler,
244 .pld_device_command = &virtex2_pld_device_command,
245 .load = &virtex2_load,
246 };