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;
63 field.in_handler = 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_handler = NULL;
89 for (i = 0; i < num_words; i++)
90 buf_set_u32(values + 4 * i, 0, 32, flip_u32(*words++, 32));
92 virtex2_set_instr(virtex2_info->tap, 0x5); /* CFG_IN */
94 jtag_add_dr_scan(1, &scan_field, TAP_DRPAUSE);
101 int virtex2_jtag_buf_to_u32(u8 *in_buf, void *priv, struct scan_field_s *field)
104 *dest = flip_u32(le_to_h_u32(in_buf), 32);
108 int virtex2_receive_32(struct pld_device_s *pld_device, int num_words, u32 *words)
110 virtex2_pld_device_t *virtex2_info = pld_device->driver_priv;
111 scan_field_t scan_field;
113 scan_field.tap = virtex2_info->tap;
114 scan_field.num_bits = 32;
115 scan_field.out_value = NULL;
116 scan_field.in_value = NULL;
117 scan_field.in_handler = virtex2_jtag_buf_to_u32; /* deprecated! invoke this from user code! */
119 virtex2_set_instr(virtex2_info->tap, 0x4); /* CFG_OUT */
123 scan_field.in_handler_priv = words++;
124 jtag_add_dr_scan(1, &scan_field, TAP_DRPAUSE);
130 int virtex2_read_stat(struct pld_device_s *pld_device, u32 *status)
136 data[0] = 0xaa995566; /* synch word */
137 data[1] = 0x2800E001; /* Type 1, read, address 7, 1 word */
138 data[2] = 0x20000000; /* NOOP (Type 1, read, address 0, 0 words */
139 data[3] = 0x20000000; /* NOOP */
140 data[4] = 0x20000000; /* NOOP */
141 virtex2_send_32(pld_device, 5, data);
143 virtex2_receive_32(pld_device, 1, status);
145 jtag_execute_queue();
147 LOG_DEBUG("status: 0x%8.8x", *status);
152 int virtex2_load(struct pld_device_s *pld_device, char *filename)
154 virtex2_pld_device_t *virtex2_info = pld_device->driver_priv;
155 xilinx_bit_file_t bit_file;
161 field.tap = virtex2_info->tap;
163 field.in_value = NULL;
166 field.in_handler = NULL;
169 if ((retval = xilinx_read_bit_file(&bit_file, filename)) != ERROR_OK)
172 jtag_add_end_state(TAP_IDLE);
173 virtex2_set_instr(virtex2_info->tap, 0xb); /* JPROG_B */
174 jtag_execute_queue();
175 jtag_add_sleep(1000);
177 virtex2_set_instr(virtex2_info->tap, 0x5); /* CFG_IN */
178 jtag_execute_queue();
180 for (i = 0; i < bit_file.length; i++)
181 bit_file.data[i] = flip_u32(bit_file.data[i], 8);
183 field.num_bits = bit_file.length * 8;
184 field.out_value = bit_file.data;
186 jtag_add_dr_scan(1, &field, TAP_DRPAUSE);
187 jtag_execute_queue();
191 jtag_add_end_state(TAP_IDLE);
192 virtex2_set_instr(virtex2_info->tap, 0xc); /* JSTART */
193 jtag_add_runtest(13, TAP_IDLE);
194 virtex2_set_instr(virtex2_info->tap, 0x3f); /* BYPASS */
195 virtex2_set_instr(virtex2_info->tap, 0x3f); /* BYPASS */
196 virtex2_set_instr(virtex2_info->tap, 0xc); /* JSTART */
197 jtag_add_runtest(13, TAP_IDLE);
198 virtex2_set_instr(virtex2_info->tap, 0x3f); /* BYPASS */
199 jtag_execute_queue();
204 int virtex2_handle_read_stat_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
206 pld_device_t *device;
207 virtex2_pld_device_t *virtex2_info;
212 command_print(cmd_ctx, "usage: virtex2 read_stat <num>");
216 device = get_pld_device_by_num(strtoul(args[0], NULL, 0));
219 command_print(cmd_ctx, "pld device '#%s' is out of bounds", args[0]);
223 virtex2_info = device->driver_priv;
225 virtex2_read_stat(device, &status);
227 command_print(cmd_ctx, "virtex2 status register: 0x%8.8x", status);
232 int virtex2_register_commands(struct command_context_s *cmd_ctx)
234 command_t *virtex2_cmd = register_command(cmd_ctx, NULL, "virtex2", NULL, COMMAND_ANY, "virtex2 specific commands");
236 register_command(cmd_ctx, virtex2_cmd, "read_stat", virtex2_handle_read_stat_command, COMMAND_EXEC,
237 "read Virtex-II status register");
242 int virtex2_pld_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct pld_device_s *pld_device)
246 virtex2_pld_device_t *virtex2_info;
250 LOG_WARNING("incomplete pld device 'virtex2' configuration");
251 return ERROR_PLD_DEVICE_INVALID;
254 tap = jtag_TapByString( args[1] );
256 command_print( cmd_ctx, "Tap: %s does not exist", args[1] );
260 virtex2_info = malloc(sizeof(virtex2_pld_device_t));
261 pld_device->driver_priv = virtex2_info;
262 virtex2_info->tap = tap;