mirror of
https://github.com/brain-hackers/u-boot-brain
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63 lines
2.1 KiB
C
63 lines
2.1 KiB
C
/*
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* (C) Copyright 2003
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* Stefan Roese, esd gmbh germany, stefan.roese@esd-electronics.com
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (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 Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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/*******************************************************/
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/* file: ports.h */
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/* abstract: This file contains extern declarations */
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/* for providing stimulus to the JTAG ports.*/
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/*******************************************************/
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#ifndef ports_dot_h
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#define ports_dot_h
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/* these constants are used to send the appropriate ports to setPort */
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/* they should be enumerated types, but some of the microcontroller */
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/* compilers don't like enumerated types */
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#define TCK (short) 0
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#define TMS (short) 1
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#define TDI (short) 2
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/*
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* Use CONFIG_SYS_FPGA_xxx defines from board include file.
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*/
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#define JTAG_TMS CONFIG_SYS_FPGA_PRG /* output */
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#define JTAG_TCK CONFIG_SYS_FPGA_CLK /* output */
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#define JTAG_TDI CONFIG_SYS_FPGA_DATA /* output */
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#define JTAG_TDO CONFIG_SYS_FPGA_DONE /* input */
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/* set the port "p" (TCK, TMS, or TDI) to val (0 or 1) */
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void setPort(short p, short val);
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/* read the TDO bit and store it in val */
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unsigned char readTDOBit(void);
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/* make clock go down->up->down*/
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void pulseClock(void);
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/* read the next byte of data from the xsvf file */
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void readByte(unsigned char *data);
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void waitTime(long microsec);
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#endif
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