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/*************************************************************************** |
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* Copyright (C) 2013 by Sergio Chico * |
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* sergio.chico@gmail.com * |
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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 "or1k_tap.h" |
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#include "or1k.h" |
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#include <jtag/jtag.h> |
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#define OR1K_XILINX_TAP_INST_USER1 0x02 |
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static int or1k_tap_xilinx_bscan_init(struct or1k_jtag *jtag_info) |
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{ |
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LOG_DEBUG("Initialising Xilinx Internal JTAG TAP"); |
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/* Put TAP into state where it can talk to the debug interface |
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* by shifting in correct value to IR. |
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*/ |
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/* Ensure TAP is reset - maybe not necessary*/ |
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jtag_add_tlr(); |
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struct jtag_tap *tap = jtag_info->tap; |
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struct scan_field field; |
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uint8_t ir_value = OR1K_XILINX_TAP_INST_USER1; |
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field.num_bits = tap->ir_length; |
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field.out_value = &ir_value; |
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field.in_value = NULL; |
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jtag_add_ir_scan(tap, &field, TAP_IDLE); |
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return jtag_execute_queue(); |
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} |
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static struct or1k_tap_ip xilinx_bscan_tap = { |
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.name = "xilinx_bscan", |
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.init = or1k_tap_xilinx_bscan_init, |
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}; |
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int or1k_tap_xilinx_bscan_register(void) |
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{ |
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list_add_tail(&xilinx_bscan_tap.list, &tap_list); |
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return 0; |
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} |