projects / u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 9a2dd740 SR |
1 | /* |
| 2 | * (C) Copyright 2003 | |
| 3 | * Stefan Roese, esd gmbh germany, stefan.roese@esd-electronics.com | |
| 4 | * | |
| 1a459660 | 5 | * SPDX-License-Identifier: GPL-2.0+ |
| 9a2dd740 SR |
6 | */ |
| 7 | ||
| 8 | /*******************************************************/ | |
| 9 | /* file: ports.h */ | |
| 10 | /* abstract: This file contains extern declarations */ | |
| 11 | /* for providing stimulus to the JTAG ports.*/ | |
| 12 | /*******************************************************/ | |
| 13 | ||
| 14 | #ifndef ports_dot_h | |
| 15 | #define ports_dot_h | |
| 16 | ||
| 17 | /* these constants are used to send the appropriate ports to setPort */ | |
| 18 | /* they should be enumerated types, but some of the microcontroller */ | |
| 19 | /* compilers don't like enumerated types */ | |
| 20 | #define TCK (short) 0 | |
| 21 | #define TMS (short) 1 | |
| 22 | #define TDI (short) 2 | |
| 23 | ||
| 24 | /* | |
| 6d0f6bcf | 25 | * Use CONFIG_SYS_FPGA_xxx defines from board include file. |
| 9a2dd740 | 26 | */ |
| 6d0f6bcf JCPV |
27 | #define JTAG_TMS CONFIG_SYS_FPGA_PRG /* output */ |
| 28 | #define JTAG_TCK CONFIG_SYS_FPGA_CLK /* output */ | |
| 29 | #define JTAG_TDI CONFIG_SYS_FPGA_DATA /* output */ | |
| 30 | #define JTAG_TDO CONFIG_SYS_FPGA_DONE /* input */ | |
| 9a2dd740 SR |
31 | |
| 32 | /* set the port "p" (TCK, TMS, or TDI) to val (0 or 1) */ | |
| 33 | void setPort(short p, short val); | |
| 34 | ||
| 35 | /* read the TDO bit and store it in val */ | |
| 36 | unsigned char readTDOBit(void); | |
| 37 | ||
| 38 | /* make clock go down->up->down*/ | |
| 39 | void pulseClock(void); | |
| 40 | ||
| 41 | /* read the next byte of data from the xsvf file */ | |
| 42 | void readByte(unsigned char *data); | |
| 43 | ||
| 44 | void waitTime(long microsec); | |
| 45 | ||
| 46 | #endif |