1 /***************************************************************************
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2 * Copyright (C) 2006 by Dominic Rath *
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3 * Dominic.Rath@gmx.de *
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5 * This program is free software; you can redistribute it and/or modify *
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6 * it under the terms of the GNU General Public License as published by *
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7 * the Free Software Foundation; either version 2 of the License, or *
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8 * (at your option) any later version. *
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10 * This program is distributed in the hope that it will be useful, *
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11 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
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12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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13 * GNU General Public License for more details. *
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15 * You should have received a copy of the GNU General Public License *
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16 * along with this program; if not, write to the *
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17 * Free Software Foundation, Inc., *
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18 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
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19 ***************************************************************************/
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20 #ifdef HAVE_CONFIG_H
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24 #include "virtex2.h"
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27 #include "xilinx_bit.h"
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28 #include "command.h"
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34 int virtex2_register_commands(struct command_context_s *cmd_ctx);
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35 int virtex2_pld_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct pld_device_s *pld_device);
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36 int virtex2_load(struct pld_device_s *pld_device, char *filename);
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38 pld_driver_t virtex2_pld =
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41 .register_commands = virtex2_register_commands,
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42 .pld_device_command = virtex2_pld_device_command,
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43 .load = virtex2_load,
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46 int virtex2_set_instr(int chain_pos, u32 new_instr)
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48 jtag_device_t *device = jtag_get_device(chain_pos);
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50 if (buf_get_u32(device->cur_instr, 0, device->ir_length) != new_instr)
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54 field.device = chain_pos;
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55 field.num_bits = device->ir_length;
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56 field.out_value = calloc(CEIL(field.num_bits, 8), 1);
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57 buf_set_u32(field.out_value, 0, field.num_bits, new_instr);
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58 field.out_mask = NULL;
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59 field.in_value = NULL;
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60 field.in_check_value = NULL;
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61 field.in_check_mask = NULL;
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62 field.in_handler = NULL;
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63 field.in_handler_priv = NULL;
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65 jtag_add_ir_scan(1, &field, TAP_RTI);
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67 free(field.out_value);
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73 int virtex2_send_32(struct pld_device_s *pld_device, int num_words, u32 *words)
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75 virtex2_pld_device_t *virtex2_info = pld_device->driver_priv;
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76 scan_field_t scan_field;
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80 values = malloc(num_words * 4);
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82 scan_field.device = virtex2_info->chain_pos;
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83 scan_field.num_bits = num_words * 32;
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84 scan_field.out_value = values;
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85 scan_field.out_mask = NULL;
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86 scan_field.in_value = NULL;
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87 scan_field.in_check_value = NULL;
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88 scan_field.in_check_mask = NULL;
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89 scan_field.in_handler = NULL;
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90 scan_field.in_handler_priv = NULL;
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92 for (i = 0; i < num_words; i++)
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93 buf_set_u32(values + 4 * i, 0, 32, flip_u32(*words++, 32));
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95 virtex2_set_instr(virtex2_info->chain_pos, 0x5); /* CFG_IN */
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97 jtag_add_dr_scan(1, &scan_field, TAP_PD);
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104 int virtex2_jtag_buf_to_u32(u8 *in_buf, void *priv, struct scan_field_s *field)
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107 *dest = flip_u32(le_to_h_u32(in_buf), 32);
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111 int virtex2_receive_32(struct pld_device_s *pld_device, int num_words, u32 *words)
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113 virtex2_pld_device_t *virtex2_info = pld_device->driver_priv;
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114 scan_field_t scan_field;
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116 scan_field.device = virtex2_info->chain_pos;
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117 scan_field.num_bits = 32;
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118 scan_field.out_value = NULL;
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119 scan_field.out_mask = NULL;
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120 scan_field.in_value = NULL;
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121 scan_field.in_check_value = NULL;
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122 scan_field.in_check_mask = NULL;
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123 scan_field.in_handler = virtex2_jtag_buf_to_u32;
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125 virtex2_set_instr(virtex2_info->chain_pos, 0x4); /* CFG_OUT */
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127 while (num_words--)
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129 scan_field.in_handler_priv = words++;
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130 jtag_add_dr_scan(1, &scan_field, TAP_PD);
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136 int virtex2_read_stat(struct pld_device_s *pld_device, u32 *status)
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140 jtag_add_statemove(TAP_TLR);
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142 data[0] = 0xaa995566; /* synch word */
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143 data[1] = 0x2800E001; /* Type 1, read, address 7, 1 word */
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144 data[2] = 0x20000000; /* NOOP (Type 1, read, address 0, 0 words */
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145 data[3] = 0x20000000; /* NOOP */
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146 data[4] = 0x20000000; /* NOOP */
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147 virtex2_send_32(pld_device, 5, data);
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149 virtex2_receive_32(pld_device, 1, status);
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151 jtag_execute_queue();
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153 DEBUG("status: 0x%8.8x", *status);
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158 int virtex2_load(struct pld_device_s *pld_device, char *filename)
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160 virtex2_pld_device_t *virtex2_info = pld_device->driver_priv;
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161 xilinx_bit_file_t bit_file;
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165 scan_field_t field;
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167 field.device = virtex2_info->chain_pos;
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168 field.out_mask = NULL;
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169 field.in_value = NULL;
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170 field.in_check_value = NULL;
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171 field.in_check_mask = NULL;
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172 field.in_handler = NULL;
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173 field.in_handler_priv = NULL;
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175 if ((retval = xilinx_read_bit_file(&bit_file, filename)) != ERROR_OK)
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178 jtag_add_end_state(TAP_RTI);
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179 virtex2_set_instr(virtex2_info->chain_pos, 0xb); /* JPROG_B */
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180 jtag_execute_queue();
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181 jtag_add_sleep(1000);
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183 virtex2_set_instr(virtex2_info->chain_pos, 0x5); /* CFG_IN */
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184 jtag_execute_queue();
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186 for (i = 0; i < bit_file.length; i++)
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187 bit_file.data[i] = flip_u32(bit_file.data[i], 8);
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189 field.num_bits = bit_file.length * 8;
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190 field.out_value = bit_file.data;
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192 jtag_add_dr_scan(1, &field, TAP_PD);
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193 jtag_execute_queue();
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195 jtag_add_statemove(TAP_TLR);
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197 jtag_add_end_state(TAP_RTI);
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198 virtex2_set_instr(virtex2_info->chain_pos, 0xc); /* JSTART */
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199 jtag_add_runtest(13, TAP_RTI);
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200 virtex2_set_instr(virtex2_info->chain_pos, 0x3f); /* BYPASS */
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201 virtex2_set_instr(virtex2_info->chain_pos, 0x3f); /* BYPASS */
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202 virtex2_set_instr(virtex2_info->chain_pos, 0xc); /* JSTART */
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203 jtag_add_runtest(13, TAP_RTI);
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204 virtex2_set_instr(virtex2_info->chain_pos, 0x3f); /* BYPASS */
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205 jtag_execute_queue();
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210 int virtex2_handle_read_stat_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
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212 pld_device_t *device;
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213 virtex2_pld_device_t *virtex2_info;
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218 command_print(cmd_ctx, "usage: virtex2 read_stat <num>");
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222 device = get_pld_device_by_num(strtoul(args[0], NULL, 0));
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225 command_print(cmd_ctx, "pld device '#%s' is out of bounds", args[0]);
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229 virtex2_info = device->driver_priv;
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231 virtex2_read_stat(device, &status);
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233 command_print(cmd_ctx, "virtex2 status register: 0x%8.8x", status);
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238 int virtex2_register_commands(struct command_context_s *cmd_ctx)
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240 command_t *virtex2_cmd = register_command(cmd_ctx, NULL, "virtex2", NULL, COMMAND_ANY, "virtex2 specific commands");
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242 register_command(cmd_ctx, virtex2_cmd, "read_stat", virtex2_handle_read_stat_command, COMMAND_EXEC,
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243 "read Virtex-II status register");
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248 int virtex2_pld_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct pld_device_s *pld_device)
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250 virtex2_pld_device_t *virtex2_info;
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254 WARNING("incomplete pld device 'virtex2' configuration");
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255 return ERROR_PLD_DEVICE_INVALID;
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258 virtex2_info = malloc(sizeof(virtex2_pld_device_t));
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259 pld_device->driver_priv = virtex2_info;
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261 virtex2_info->chain_pos = strtoul(args[1], NULL, 0);
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