ae03572f151255db7d2cf1061d2dd804f13f2c29
[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 #ifdef HAVE_CONFIG_H
21 #include "config.h"
22 #endif
23
24 #include "virtex2.h"
25
26 #include "pld.h"
27 #include "xilinx_bit.h"
28 #include "command.h"
29 #include "log.h"
30 #include "jtag.h"
31
32 #include <stdlib.h>
33
34 int virtex2_register_commands(struct command_context_s *cmd_ctx);
35 int virtex2_pld_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct pld_device_s *pld_device);
36 int virtex2_load(struct pld_device_s *pld_device, char *filename);
37
38 pld_driver_t virtex2_pld =
39 {
40 .name = "virtex2",
41 .register_commands = virtex2_register_commands,
42 .pld_device_command = virtex2_pld_device_command,
43 .load = virtex2_load,
44 };
45
46 int virtex2_set_instr(jtag_tap_t *tap, u32 new_instr)
47 {
48 if (tap==NULL)
49 return ERROR_FAIL;
50
51 if (buf_get_u32(tap->cur_instr, 0, tap->ir_length) != new_instr)
52 {
53 scan_field_t field;
54
55 field.tap = tap;
56 field.num_bits = tap->ir_length;
57 field.out_value = calloc(CEIL(field.num_bits, 8), 1);
58 buf_set_u32(field.out_value, 0, field.num_bits, new_instr);
59
60 field.in_value = NULL;
61
62
63
64
65
66 jtag_add_ir_scan(1, &field, TAP_IDLE);
67
68 free(field.out_value);
69 }
70
71 return ERROR_OK;
72 }
73
74 int virtex2_send_32(struct pld_device_s *pld_device, int num_words, u32 *words)
75 {
76 virtex2_pld_device_t *virtex2_info = pld_device->driver_priv;
77 scan_field_t scan_field;
78 u8 *values;
79 int i;
80
81 values = malloc(num_words * 4);
82
83 scan_field.tap = virtex2_info->tap;
84 scan_field.num_bits = num_words * 32;
85 scan_field.out_value = values;
86 scan_field.in_value = NULL;
87
88 for (i = 0; i < num_words; i++)
89 buf_set_u32(values + 4 * i, 0, 32, flip_u32(*words++, 32));
90
91 virtex2_set_instr(virtex2_info->tap, 0x5); /* CFG_IN */
92
93 jtag_add_dr_scan(1, &scan_field, TAP_DRPAUSE);
94
95 free(values);
96
97 return ERROR_OK;
98 }
99
100
101 int virtex2_receive_32(struct pld_device_s *pld_device, int num_words, u32 *words)
102 {
103 virtex2_pld_device_t *virtex2_info = pld_device->driver_priv;
104 scan_field_t scan_field;
105
106 scan_field.tap = virtex2_info->tap;
107 scan_field.num_bits = 32;
108 scan_field.out_value = NULL;
109 u8 tmp[4];
110 scan_field.in_value = tmp;
111
112 virtex2_set_instr(virtex2_info->tap, 0x4); /* CFG_OUT */
113
114 while (num_words--)
115 {
116 jtag_add_dr_scan_now(1, &scan_field, TAP_DRPAUSE);
117
118 *words++=flip_u32(le_to_h_u32(tmp), 32);
119 }
120
121 return ERROR_OK;
122 }
123
124 int virtex2_read_stat(struct pld_device_s *pld_device, u32 *status)
125 {
126 u32 data[5];
127
128 jtag_add_tlr();
129
130 data[0] = 0xaa995566; /* synch word */
131 data[1] = 0x2800E001; /* Type 1, read, address 7, 1 word */
132 data[2] = 0x20000000; /* NOOP (Type 1, read, address 0, 0 words */
133 data[3] = 0x20000000; /* NOOP */
134 data[4] = 0x20000000; /* NOOP */
135 virtex2_send_32(pld_device, 5, data);
136
137 virtex2_receive_32(pld_device, 1, status);
138
139 jtag_execute_queue();
140
141 LOG_DEBUG("status: 0x%8.8x", *status);
142
143 return ERROR_OK;
144 }
145
146 int virtex2_load(struct pld_device_s *pld_device, char *filename)
147 {
148 virtex2_pld_device_t *virtex2_info = pld_device->driver_priv;
149 xilinx_bit_file_t bit_file;
150 int retval;
151 unsigned int i;
152
153 scan_field_t field;
154
155 field.tap = virtex2_info->tap;
156
157 field.in_value = NULL;
158
159
160
161
162
163 if ((retval = xilinx_read_bit_file(&bit_file, filename)) != ERROR_OK)
164 return retval;
165
166 jtag_add_end_state(TAP_IDLE);
167 virtex2_set_instr(virtex2_info->tap, 0xb); /* JPROG_B */
168 jtag_execute_queue();
169 jtag_add_sleep(1000);
170
171 virtex2_set_instr(virtex2_info->tap, 0x5); /* CFG_IN */
172 jtag_execute_queue();
173
174 for (i = 0; i < bit_file.length; i++)
175 bit_file.data[i] = flip_u32(bit_file.data[i], 8);
176
177 field.num_bits = bit_file.length * 8;
178 field.out_value = bit_file.data;
179
180 jtag_add_dr_scan(1, &field, TAP_DRPAUSE);
181 jtag_execute_queue();
182
183 jtag_add_tlr();
184
185 jtag_add_end_state(TAP_IDLE);
186 virtex2_set_instr(virtex2_info->tap, 0xc); /* JSTART */
187 jtag_add_runtest(13, TAP_IDLE);
188 virtex2_set_instr(virtex2_info->tap, 0x3f); /* BYPASS */
189 virtex2_set_instr(virtex2_info->tap, 0x3f); /* BYPASS */
190 virtex2_set_instr(virtex2_info->tap, 0xc); /* JSTART */
191 jtag_add_runtest(13, TAP_IDLE);
192 virtex2_set_instr(virtex2_info->tap, 0x3f); /* BYPASS */
193 jtag_execute_queue();
194
195 return ERROR_OK;
196 }
197
198 int virtex2_handle_read_stat_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
199 {
200 pld_device_t *device;
201 virtex2_pld_device_t *virtex2_info;
202 u32 status;
203
204 if (argc < 1)
205 {
206 command_print(cmd_ctx, "usage: virtex2 read_stat <num>");
207 return ERROR_OK;
208 }
209
210 device = get_pld_device_by_num(strtoul(args[0], NULL, 0));
211 if (!device)
212 {
213 command_print(cmd_ctx, "pld device '#%s' is out of bounds", args[0]);
214 return ERROR_OK;
215 }
216
217 virtex2_info = device->driver_priv;
218
219 virtex2_read_stat(device, &status);
220
221 command_print(cmd_ctx, "virtex2 status register: 0x%8.8x", status);
222
223 return ERROR_OK;
224 }
225
226 int virtex2_register_commands(struct command_context_s *cmd_ctx)
227 {
228 command_t *virtex2_cmd = register_command(cmd_ctx, NULL, "virtex2", NULL, COMMAND_ANY, "virtex2 specific commands");
229
230 register_command(cmd_ctx, virtex2_cmd, "read_stat", virtex2_handle_read_stat_command, COMMAND_EXEC,
231 "read Virtex-II status register");
232
233 return ERROR_OK;
234 }
235
236 int virtex2_pld_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct pld_device_s *pld_device)
237 {
238 jtag_tap_t *tap;
239
240 virtex2_pld_device_t *virtex2_info;
241
242 if (argc < 2)
243 {
244 LOG_WARNING("incomplete pld device 'virtex2' configuration");
245 return ERROR_PLD_DEVICE_INVALID;
246 }
247
248 tap = jtag_TapByString( args[1] );
249 if( tap == NULL ){
250 command_print( cmd_ctx, "Tap: %s does not exist", args[1] );
251 return ERROR_OK;
252 }
253
254 virtex2_info = malloc(sizeof(virtex2_pld_device_t));
255 pld_device->driver_priv = virtex2_info;
256 virtex2_info->tap = tap;
257
258 return ERROR_OK;
259 }