1 /***************************************************************************
2 * Copyright (C) 2006 by Dominic Rath *
3 * Dominic.Rath@gmx.de *
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. *
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. *
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 ***************************************************************************/
27 #include "xilinx_bit.h"
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);
38 pld_driver_t virtex2_pld =
41 .register_commands = virtex2_register_commands,
42 .pld_device_command = virtex2_pld_device_command,
46 int virtex2_set_instr(jtag_tap_t *tap, u32 new_instr)
51 if (buf_get_u32(tap->cur_instr, 0, tap->ir_length) != new_instr)
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);
60 field.in_value = NULL;
61 field.in_check_value = NULL;
62 field.in_check_mask = NULL;
63 field.in_handler = NULL;
64 field.in_handler_priv = NULL;
66 jtag_add_ir_scan(1, &field, TAP_IDLE);
68 free(field.out_value);
74 int virtex2_send_32(struct pld_device_s *pld_device, int num_words, u32 *words)
76 virtex2_pld_device_t *virtex2_info = pld_device->driver_priv;
77 scan_field_t scan_field;
81 values = malloc(num_words * 4);
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 scan_field.in_check_value = NULL;
88 scan_field.in_check_mask = NULL;
89 scan_field.in_handler = NULL;
90 scan_field.in_handler_priv = NULL;
92 for (i = 0; i < num_words; i++)
93 buf_set_u32(values + 4 * i, 0, 32, flip_u32(*words++, 32));
95 virtex2_set_instr(virtex2_info->tap, 0x5); /* CFG_IN */
97 jtag_add_dr_scan(1, &scan_field, TAP_DRPAUSE);
104 int virtex2_jtag_buf_to_u32(u8 *in_buf, void *priv, struct scan_field_s *field)
107 *dest = flip_u32(le_to_h_u32(in_buf), 32);
111 int virtex2_receive_32(struct pld_device_s *pld_device, int num_words, u32 *words)
113 virtex2_pld_device_t *virtex2_info = pld_device->driver_priv;
114 scan_field_t scan_field;
116 scan_field.tap = virtex2_info->tap;
117 scan_field.num_bits = 32;
118 scan_field.out_value = NULL;
119 scan_field.in_value = NULL;
120 scan_field.in_check_value = NULL;
121 scan_field.in_check_mask = NULL;
122 scan_field.in_handler = virtex2_jtag_buf_to_u32; /* deprecated! invoke this from user code! */
124 virtex2_set_instr(virtex2_info->tap, 0x4); /* CFG_OUT */
128 scan_field.in_handler_priv = words++;
129 jtag_add_dr_scan(1, &scan_field, TAP_DRPAUSE);
135 int virtex2_read_stat(struct pld_device_s *pld_device, u32 *status)
141 data[0] = 0xaa995566; /* synch word */
142 data[1] = 0x2800E001; /* Type 1, read, address 7, 1 word */
143 data[2] = 0x20000000; /* NOOP (Type 1, read, address 0, 0 words */
144 data[3] = 0x20000000; /* NOOP */
145 data[4] = 0x20000000; /* NOOP */
146 virtex2_send_32(pld_device, 5, data);
148 virtex2_receive_32(pld_device, 1, status);
150 jtag_execute_queue();
152 LOG_DEBUG("status: 0x%8.8x", *status);
157 int virtex2_load(struct pld_device_s *pld_device, char *filename)
159 virtex2_pld_device_t *virtex2_info = pld_device->driver_priv;
160 xilinx_bit_file_t bit_file;
166 field.tap = virtex2_info->tap;
168 field.in_value = NULL;
169 field.in_check_value = NULL;
170 field.in_check_mask = NULL;
171 field.in_handler = NULL;
172 field.in_handler_priv = NULL;
174 if ((retval = xilinx_read_bit_file(&bit_file, filename)) != ERROR_OK)
177 jtag_add_end_state(TAP_IDLE);
178 virtex2_set_instr(virtex2_info->tap, 0xb); /* JPROG_B */
179 jtag_execute_queue();
180 jtag_add_sleep(1000);
182 virtex2_set_instr(virtex2_info->tap, 0x5); /* CFG_IN */
183 jtag_execute_queue();
185 for (i = 0; i < bit_file.length; i++)
186 bit_file.data[i] = flip_u32(bit_file.data[i], 8);
188 field.num_bits = bit_file.length * 8;
189 field.out_value = bit_file.data;
191 jtag_add_dr_scan(1, &field, TAP_DRPAUSE);
192 jtag_execute_queue();
196 jtag_add_end_state(TAP_IDLE);
197 virtex2_set_instr(virtex2_info->tap, 0xc); /* JSTART */
198 jtag_add_runtest(13, TAP_IDLE);
199 virtex2_set_instr(virtex2_info->tap, 0x3f); /* BYPASS */
200 virtex2_set_instr(virtex2_info->tap, 0x3f); /* BYPASS */
201 virtex2_set_instr(virtex2_info->tap, 0xc); /* JSTART */
202 jtag_add_runtest(13, TAP_IDLE);
203 virtex2_set_instr(virtex2_info->tap, 0x3f); /* BYPASS */
204 jtag_execute_queue();
209 int virtex2_handle_read_stat_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
211 pld_device_t *device;
212 virtex2_pld_device_t *virtex2_info;
217 command_print(cmd_ctx, "usage: virtex2 read_stat <num>");
221 device = get_pld_device_by_num(strtoul(args[0], NULL, 0));
224 command_print(cmd_ctx, "pld device '#%s' is out of bounds", args[0]);
228 virtex2_info = device->driver_priv;
230 virtex2_read_stat(device, &status);
232 command_print(cmd_ctx, "virtex2 status register: 0x%8.8x", status);
237 int virtex2_register_commands(struct command_context_s *cmd_ctx)
239 command_t *virtex2_cmd = register_command(cmd_ctx, NULL, "virtex2", NULL, COMMAND_ANY, "virtex2 specific commands");
241 register_command(cmd_ctx, virtex2_cmd, "read_stat", virtex2_handle_read_stat_command, COMMAND_EXEC,
242 "read Virtex-II status register");
247 int virtex2_pld_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct pld_device_s *pld_device)
251 virtex2_pld_device_t *virtex2_info;
255 LOG_WARNING("incomplete pld device 'virtex2' configuration");
256 return ERROR_PLD_DEVICE_INVALID;
259 tap = jtag_TapByString( args[1] );
261 command_print( cmd_ctx, "Tap: %s does not exist", args[1] );
265 virtex2_info = malloc(sizeof(virtex2_pld_device_t));
266 pld_device->driver_priv = virtex2_info;
267 virtex2_info->tap = tap;