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 ***************************************************************************/
25 #include "xilinx_bit.h"
29 static int virtex2_register_commands(struct command_context_s
*cmd_ctx
);
30 static int virtex2_pld_device_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
, struct pld_device_s
*pld_device
);
31 static int virtex2_load(struct pld_device_s
*pld_device
, char *filename
);
33 pld_driver_t virtex2_pld
=
36 .register_commands
= virtex2_register_commands
,
37 .pld_device_command
= virtex2_pld_device_command
,
41 static int virtex2_set_instr(jtag_tap_t
*tap
, u32 new_instr
)
46 if (buf_get_u32(tap
->cur_instr
, 0, tap
->ir_length
) != new_instr
)
51 field
.num_bits
= tap
->ir_length
;
52 field
.out_value
= calloc(CEIL(field
.num_bits
, 8), 1);
53 buf_set_u32(field
.out_value
, 0, field
.num_bits
, new_instr
);
54 field
.in_value
= NULL
;
56 jtag_add_ir_scan(1, &field
, jtag_set_end_state(TAP_IDLE
));
58 free(field
.out_value
);
64 static int virtex2_send_32(struct pld_device_s
*pld_device
,
65 int num_words
, u32
*words
)
67 virtex2_pld_device_t
*virtex2_info
= pld_device
->driver_priv
;
68 scan_field_t scan_field
;
72 values
= malloc(num_words
* 4);
74 scan_field
.tap
= virtex2_info
->tap
;
75 scan_field
.num_bits
= num_words
* 32;
76 scan_field
.out_value
= values
;
77 scan_field
.in_value
= NULL
;
79 for (i
= 0; i
< num_words
; i
++)
80 buf_set_u32(values
+ 4 * i
, 0, 32, flip_u32(*words
++, 32));
82 virtex2_set_instr(virtex2_info
->tap
, 0x5); /* CFG_IN */
84 jtag_add_dr_scan(1, &scan_field
, jtag_set_end_state(TAP_DRPAUSE
));
91 static __inline__
void virtexflip32(uint8_t *in
)
93 *((u32
*)in
) = flip_u32(le_to_h_u32(in
), 32);
96 static int virtex2_receive_32(struct pld_device_s
*pld_device
,
97 int num_words
, u32
*words
)
99 virtex2_pld_device_t
*virtex2_info
= pld_device
->driver_priv
;
100 scan_field_t scan_field
;
102 scan_field
.tap
= virtex2_info
->tap
;
103 scan_field
.num_bits
= 32;
104 scan_field
.out_value
= NULL
;
105 scan_field
.in_value
= NULL
;
107 virtex2_set_instr(virtex2_info
->tap
, 0x4); /* CFG_OUT */
111 scan_field
.in_value
= (uint8_t *)words
;
113 jtag_add_dr_scan(1, &scan_field
, jtag_set_end_state(TAP_DRPAUSE
));
115 jtag_add_callback(virtexflip32
, (uint8_t *)words
);
123 static int virtex2_read_stat(struct pld_device_s
*pld_device
, u32
*status
)
129 data
[0] = 0xaa995566; /* synch word */
130 data
[1] = 0x2800E001; /* Type 1, read, address 7, 1 word */
131 data
[2] = 0x20000000; /* NOOP (Type 1, read, address 0, 0 words */
132 data
[3] = 0x20000000; /* NOOP */
133 data
[4] = 0x20000000; /* NOOP */
134 virtex2_send_32(pld_device
, 5, data
);
136 virtex2_receive_32(pld_device
, 1, status
);
138 jtag_execute_queue();
140 LOG_DEBUG("status: 0x%8.8x", *status
);
145 static int virtex2_load(struct pld_device_s
*pld_device
, char *filename
)
147 virtex2_pld_device_t
*virtex2_info
= pld_device
->driver_priv
;
148 xilinx_bit_file_t bit_file
;
153 field
.tap
= virtex2_info
->tap
;
154 field
.in_value
= NULL
;
156 if ((retval
= xilinx_read_bit_file(&bit_file
, filename
)) != ERROR_OK
)
159 jtag_set_end_state(TAP_IDLE
);
160 virtex2_set_instr(virtex2_info
->tap
, 0xb); /* JPROG_B */
161 jtag_execute_queue();
162 jtag_add_sleep(1000);
164 virtex2_set_instr(virtex2_info
->tap
, 0x5); /* CFG_IN */
165 jtag_execute_queue();
167 for (i
= 0; i
< bit_file
.length
; i
++)
168 bit_file
.data
[i
] = flip_u32(bit_file
.data
[i
], 8);
170 field
.num_bits
= bit_file
.length
* 8;
171 field
.out_value
= bit_file
.data
;
173 jtag_add_dr_scan(1, &field
, jtag_set_end_state(TAP_DRPAUSE
));
174 jtag_execute_queue();
178 jtag_set_end_state(TAP_IDLE
);
179 virtex2_set_instr(virtex2_info
->tap
, 0xc); /* JSTART */
180 jtag_add_runtest(13, jtag_set_end_state(TAP_IDLE
));
181 virtex2_set_instr(virtex2_info
->tap
, 0x3f); /* BYPASS */
182 virtex2_set_instr(virtex2_info
->tap
, 0x3f); /* BYPASS */
183 virtex2_set_instr(virtex2_info
->tap
, 0xc); /* JSTART */
184 jtag_add_runtest(13, jtag_set_end_state(TAP_IDLE
));
185 virtex2_set_instr(virtex2_info
->tap
, 0x3f); /* BYPASS */
186 jtag_execute_queue();
191 static int virtex2_handle_read_stat_command(struct command_context_s
*cmd_ctx
,
192 char *cmd
, char **args
, int argc
)
194 pld_device_t
*device
;
195 virtex2_pld_device_t
*virtex2_info
;
200 command_print(cmd_ctx
, "usage: virtex2 read_stat <num>");
204 device
= get_pld_device_by_num(strtoul(args
[0], NULL
, 0));
207 command_print(cmd_ctx
, "pld device '#%s' is out of bounds", args
[0]);
211 virtex2_info
= device
->driver_priv
;
213 virtex2_read_stat(device
, &status
);
215 command_print(cmd_ctx
, "virtex2 status register: 0x%8.8x", status
);
220 static int virtex2_register_commands(struct command_context_s
*cmd_ctx
)
222 command_t
*virtex2_cmd
= register_command(cmd_ctx
, NULL
, "virtex2", NULL
, COMMAND_ANY
, "virtex2 specific commands");
224 register_command(cmd_ctx
, virtex2_cmd
, "read_stat", virtex2_handle_read_stat_command
, COMMAND_EXEC
,
225 "read Virtex-II status register");
230 static int virtex2_pld_device_command(struct command_context_s
*cmd_ctx
,
231 char *cmd
, char **args
, int argc
, struct pld_device_s
*pld_device
)
235 virtex2_pld_device_t
*virtex2_info
;
239 LOG_WARNING("incomplete pld device 'virtex2' configuration");
240 return ERROR_PLD_DEVICE_INVALID
;
243 tap
= jtag_tap_by_string(args
[1]);
245 command_print( cmd_ctx
, "Tap: %s does not exist", args
[1] );
249 virtex2_info
= malloc(sizeof(virtex2_pld_device_t
));
250 pld_device
->driver_priv
= virtex2_info
;
251 virtex2_info
->tap
= tap
;
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