273 lines
7.6 KiB
C
273 lines
7.6 KiB
C
/***************************************************************************
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* Copyright (C) 2006 by Dominic Rath *
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* Dominic.Rath@gmx.de *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
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***************************************************************************/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "virtex2.h"
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#include "pld.h"
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#include "xilinx_bit.h"
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#include "command.h"
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#include "log.h"
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#include "jtag.h"
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#include <stdlib.h>
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int virtex2_register_commands(struct command_context_s *cmd_ctx);
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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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int virtex2_load(struct pld_device_s *pld_device, char *filename);
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pld_driver_t virtex2_pld =
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{
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.name = "virtex2",
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.register_commands = virtex2_register_commands,
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.pld_device_command = virtex2_pld_device_command,
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.load = virtex2_load,
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};
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int virtex2_set_instr(jtag_tap_t *tap, u32 new_instr)
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{
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if (tap==NULL)
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return ERROR_FAIL;
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if (buf_get_u32(tap->cur_instr, 0, tap->ir_length) != new_instr)
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{
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scan_field_t field;
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field.tap = tap;
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field.num_bits = tap->ir_length;
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field.out_value = calloc(CEIL(field.num_bits, 8), 1);
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buf_set_u32(field.out_value, 0, field.num_bits, new_instr);
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field.out_mask = NULL;
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field.in_value = NULL;
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field.in_check_value = NULL;
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field.in_check_mask = NULL;
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field.in_handler = NULL;
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field.in_handler_priv = NULL;
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jtag_add_ir_scan(1, &field, TAP_RTI);
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free(field.out_value);
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}
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return ERROR_OK;
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}
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int virtex2_send_32(struct pld_device_s *pld_device, int num_words, u32 *words)
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{
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virtex2_pld_device_t *virtex2_info = pld_device->driver_priv;
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scan_field_t scan_field;
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u8 *values;
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int i;
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values = malloc(num_words * 4);
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scan_field.tap = virtex2_info->tap;
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scan_field.num_bits = num_words * 32;
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scan_field.out_value = values;
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scan_field.out_mask = NULL;
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scan_field.in_value = NULL;
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scan_field.in_check_value = NULL;
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scan_field.in_check_mask = NULL;
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scan_field.in_handler = NULL;
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scan_field.in_handler_priv = NULL;
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for (i = 0; i < num_words; i++)
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buf_set_u32(values + 4 * i, 0, 32, flip_u32(*words++, 32));
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virtex2_set_instr(virtex2_info->tap, 0x5); /* CFG_IN */
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jtag_add_dr_scan(1, &scan_field, TAP_PD);
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free(values);
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return ERROR_OK;
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}
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int virtex2_jtag_buf_to_u32(u8 *in_buf, void *priv, struct scan_field_s *field)
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{
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u32 *dest = priv;
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*dest = flip_u32(le_to_h_u32(in_buf), 32);
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return ERROR_OK;
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}
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int virtex2_receive_32(struct pld_device_s *pld_device, int num_words, u32 *words)
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{
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virtex2_pld_device_t *virtex2_info = pld_device->driver_priv;
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scan_field_t scan_field;
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scan_field.tap = virtex2_info->tap;
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scan_field.num_bits = 32;
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scan_field.out_value = NULL;
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scan_field.out_mask = NULL;
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scan_field.in_value = NULL;
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scan_field.in_check_value = NULL;
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scan_field.in_check_mask = NULL;
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scan_field.in_handler = virtex2_jtag_buf_to_u32;
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virtex2_set_instr(virtex2_info->tap, 0x4); /* CFG_OUT */
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while (num_words--)
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{
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scan_field.in_handler_priv = words++;
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jtag_add_dr_scan(1, &scan_field, TAP_PD);
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}
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return ERROR_OK;
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}
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int virtex2_read_stat(struct pld_device_s *pld_device, u32 *status)
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{
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u32 data[5];
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jtag_add_tlr();
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data[0] = 0xaa995566; /* synch word */
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data[1] = 0x2800E001; /* Type 1, read, address 7, 1 word */
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data[2] = 0x20000000; /* NOOP (Type 1, read, address 0, 0 words */
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data[3] = 0x20000000; /* NOOP */
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data[4] = 0x20000000; /* NOOP */
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virtex2_send_32(pld_device, 5, data);
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virtex2_receive_32(pld_device, 1, status);
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jtag_execute_queue();
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LOG_DEBUG("status: 0x%8.8x", *status);
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return ERROR_OK;
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}
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int virtex2_load(struct pld_device_s *pld_device, char *filename)
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{
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virtex2_pld_device_t *virtex2_info = pld_device->driver_priv;
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xilinx_bit_file_t bit_file;
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int retval;
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int i;
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scan_field_t field;
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field.tap = virtex2_info->tap;
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field.out_mask = NULL;
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field.in_value = NULL;
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field.in_check_value = NULL;
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field.in_check_mask = NULL;
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field.in_handler = NULL;
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field.in_handler_priv = NULL;
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if ((retval = xilinx_read_bit_file(&bit_file, filename)) != ERROR_OK)
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return retval;
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jtag_add_end_state(TAP_RTI);
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virtex2_set_instr(virtex2_info->tap, 0xb); /* JPROG_B */
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jtag_execute_queue();
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jtag_add_sleep(1000);
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virtex2_set_instr(virtex2_info->tap, 0x5); /* CFG_IN */
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jtag_execute_queue();
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for (i = 0; i < bit_file.length; i++)
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bit_file.data[i] = flip_u32(bit_file.data[i], 8);
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field.num_bits = bit_file.length * 8;
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field.out_value = bit_file.data;
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jtag_add_dr_scan(1, &field, TAP_PD);
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jtag_execute_queue();
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jtag_add_tlr();
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jtag_add_end_state(TAP_RTI);
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virtex2_set_instr(virtex2_info->tap, 0xc); /* JSTART */
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jtag_add_runtest(13, TAP_RTI);
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virtex2_set_instr(virtex2_info->tap, 0x3f); /* BYPASS */
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virtex2_set_instr(virtex2_info->tap, 0x3f); /* BYPASS */
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virtex2_set_instr(virtex2_info->tap, 0xc); /* JSTART */
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jtag_add_runtest(13, TAP_RTI);
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virtex2_set_instr(virtex2_info->tap, 0x3f); /* BYPASS */
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jtag_execute_queue();
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return ERROR_OK;
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}
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int virtex2_handle_read_stat_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
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{
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pld_device_t *device;
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virtex2_pld_device_t *virtex2_info;
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u32 status;
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if (argc < 1)
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{
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command_print(cmd_ctx, "usage: virtex2 read_stat <num>");
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return ERROR_OK;
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}
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device = get_pld_device_by_num(strtoul(args[0], NULL, 0));
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if (!device)
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{
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command_print(cmd_ctx, "pld device '#%s' is out of bounds", args[0]);
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return ERROR_OK;
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}
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virtex2_info = device->driver_priv;
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virtex2_read_stat(device, &status);
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command_print(cmd_ctx, "virtex2 status register: 0x%8.8x", status);
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return ERROR_OK;
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}
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int virtex2_register_commands(struct command_context_s *cmd_ctx)
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{
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command_t *virtex2_cmd = register_command(cmd_ctx, NULL, "virtex2", NULL, COMMAND_ANY, "virtex2 specific commands");
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register_command(cmd_ctx, virtex2_cmd, "read_stat", virtex2_handle_read_stat_command, COMMAND_EXEC,
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"read Virtex-II status register");
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return ERROR_OK;
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}
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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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{
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jtag_tap_t *tap;
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virtex2_pld_device_t *virtex2_info;
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if (argc < 2)
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{
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LOG_WARNING("incomplete pld device 'virtex2' configuration");
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return ERROR_PLD_DEVICE_INVALID;
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}
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tap = jtag_TapByString( args[1] );
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if( tap == NULL ){
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command_print( cmd_ctx, "Tap: %s does not exist", args[1] );
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return ERROR_OK;
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}
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virtex2_info = malloc(sizeof(virtex2_pld_device_t));
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pld_device->driver_priv = virtex2_info;
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virtex2_info->tap = tap;
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return ERROR_OK;
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}
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