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/* adv_jtag_bridge.c -- JTAG protocol bridge between GDB and Advanced debug module.
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/* adv_jtag_bridge.c -- JTAG protocol bridge between GDB and Advanced debug module.
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Copyright(C) 2001 Marko Mlinar, markom@opencores.org
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Copyright(C) 2001 Marko Mlinar, markom@opencores.org
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Code for TCP/IP copied from gdb, by Chris Ziomkowski
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Code for TCP/IP copied from gdb, by Chris Ziomkowski
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Refactoring by Nathan Yawn, nyawn@opencores.org
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Refactoring by Nathan Yawn <nyawn@opencores.org> (C) 2008 - 2010
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This file was part of the OpenRISC 1000 Architectural Simulator.
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This file was part of the OpenRISC 1000 Architectural Simulator.
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It is now also used to connect GDB to a running hardware OpenCores / OR1200
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It is now also used to connect GDB to a running hardware OpenCores / OR1200
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advanced debug unit.
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advanced debug unit.
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Line 37... |
#include "chain_commands.h"
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#include "chain_commands.h"
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#include "cable_common.h"
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#include "cable_common.h"
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#include "or32_selftest.h"
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#include "or32_selftest.h"
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#include "bsdl.h"
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#include "bsdl.h"
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#include "errcodes.h"
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#include "errcodes.h"
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#include "cable_usbblaster.h"
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#define debug(...) //fprintf(stderr, __VA_ARGS__ )
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#define debug(...) //fprintf(stderr, __VA_ARGS__ )
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// How many command-line IR length settings to create by default
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// How many command-line IR length settings to create by default
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#define IR_START_SETS 16
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#define IR_START_SETS 16
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Line 82... |
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// Pointer to the command line arg used as the cable name
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// Pointer to the command line arg used as the cable name
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char * cable_name = NULL;
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char * cable_name = NULL;
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// How many jtag devices in the scan chain.
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unsigned int max_devices = 1;
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////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////
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// List of IDCODES of devices on the JTAG scan chain
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// List of IDCODES of devices on the JTAG scan chain
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// The array is dynamically allocated in chain_commands/jtag_enumerate_chain()
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// The array is dynamically allocated in chain_commands/jtag_enumerate_chain()
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uint32_t *idcodes = NULL;
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uint32_t *idcodes = NULL;
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Line 117... |
//////////////////////////////////////////////////////////////////////////////////////
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//////////////////////////////////////////////////////////////////////////////////////
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/*----------------------------------------------------------------------------------*/
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/*----------------------------------------------------------------------------------*/
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// Functions
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// Functions
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/////////////////////////////////////////////////////////////////////////////////////
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/////////////////////////////////////////////////////////////////////////////////////
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// If we are using ftdi library for usb-blaster, close the device before we leave
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void close_ftdi_device(void)
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{
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#ifdef __SUPPORT_FTDI_CABLES__
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if (!strcmp(cable_name, "usbblaster_ftdi")) {
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printf("Free ftdi device\n");
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ftdi_usb_blaster_quit();
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}
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#endif
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return;
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}
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// Resets JTAG, and sets up DEBUG scan chain
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// Resets JTAG, and sets up DEBUG scan chain
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void configure_chain(void)
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void configure_chain(void)
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{
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{
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int i;
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int i;
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unsigned int manuf_id;
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unsigned int manuf_id;
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Line 164... |
fprintf(stderr, "*** debug unit, or change your SoC to use the Advanced Debug Unit.\n");
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fprintf(stderr, "*** debug unit, or change your SoC to use the Advanced Debug Unit.\n");
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exit(0);
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exit(0);
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}
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}
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#endif
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#endif
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if(target_dev_pos >= num_devices) {
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if(target_dev_pos >= num_devices) {
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printf("ERROR: Requested target device (%i) beyond highest device index (%i).\n", target_dev_pos, num_devices-1);
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printf("ERROR: Requested target device (%i) beyond highest device index (%i).\n", target_dev_pos, num_devices-1);
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exit(1);
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exit(1);
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} else {
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} else {
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printf("Target device %i, JTAG ID = 0x%08x\n", target_dev_pos, idcodes[target_dev_pos]);
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printf("Target device %i, JTAG ID = 0x%08x\n", target_dev_pos, idcodes[target_dev_pos]);
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}
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}
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manuf_id = (idcodes[target_dev_pos] >> 1) & 0x7FF;
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manuf_id = (idcodes[target_dev_pos] >> 1) & 0x7FF;
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// Note that there's a little translation here, since device index 0 is actually closest to the cable data input
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config_set_DR_prefix_bits(num_devices - target_dev_pos - 1); // number of devices between cable data out and target device
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config_set_DR_postfix_bits(target_dev_pos); // number of devices between target device and cable data in
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// Set Altera Virtual JTAG mode on or off. If not forced, then enable
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// if the target device has an Altera manufacturer IDCODE
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if(force_alt_vjtag == 1 || manuf_id == ALTERA_MANUFACTURER_ID) {
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int ir_size;
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int debug_cmd;
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ir_size = cmd_line_ir_sizes[target_dev_pos].ir_length > 0 ? cmd_line_ir_sizes[target_dev_pos].ir_length : 10;
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debug_cmd = cmd_line_cmd_debug > 0 ? cmd_line_cmd_debug : 0x8;
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printf("Working on Altera Virtual JTAG device. IR size = %d, Debeg command = 0x%x\n", ir_size, debug_cmd);
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config_set_alt_vjtag(1);
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config_set_IR_size(ir_size);
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config_set_debug_cmd(debug_cmd);
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} else { // Not a Altera JTAG
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// Use BSDL files to determine prefix bits, postfix bits, debug command, IR length
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// Use BSDL files to determine prefix bits, postfix bits, debug command, IR length
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config_set_IR_size(get_IR_size(target_dev_pos));
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config_set_IR_size(get_IR_size(target_dev_pos));
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// Set the IR prefix / postfix bits
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// Set the IR prefix / postfix bits
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int total = 0;
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int total = 0;
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Line 193... |
debug("Adding %i to total for devidx %i\n", get_IR_size(i), i);
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debug("Adding %i to total for devidx %i\n", get_IR_size(i), i);
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}
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}
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config_set_IR_prefix_bits(total);
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config_set_IR_prefix_bits(total);
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debug("Prefix bits: %d\n", total);
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debug("Prefix bits: %d\n", total);
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// Note that there's a little translation here, since device index 0 is actually closest to the cable data input
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config_set_DR_prefix_bits(num_devices - target_dev_pos - 1); // number of devices between cable data out and target device
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config_set_DR_postfix_bits(target_dev_pos); // number of devices between target device and cable data in
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// Set the DEBUG command for the IR of the target device.
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// Set the DEBUG command for the IR of the target device.
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// If this is a Xilinx device, use USER1 instead of DEBUG
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// If this is a Xilinx device, use USER1 instead of DEBUG
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// If we Altera Virtual JTAG mode, we don't care.
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// If we Altera Virtual JTAG mode, we don't care.
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if((force_alt_vjtag == 0) && (manuf_id != ALTERA_MANUFACTURER_ID)) {
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if((force_alt_vjtag == -1) || ((force_alt_vjtag == 0) && (manuf_id != ALTERA_MANUFACTURER_ID))) {
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cmd = get_debug_cmd(target_dev_pos);
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cmd = get_debug_cmd(target_dev_pos);
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if(cmd == TAP_CMD_INVALID) {
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if(cmd == TAP_CMD_INVALID) {
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printf("Unable to find DEBUG command, aborting.\n");
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printf("Unable to find DEBUG command, aborting.\n");
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exit(1);
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exit(1);
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}
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}
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Line 216... |
// Safe, but slower, for non-BSCAN TAPs.
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// Safe, but slower, for non-BSCAN TAPs.
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if(manuf_id == XILINX_MANUFACTURER_ID) {
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if(manuf_id == XILINX_MANUFACTURER_ID) {
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config_set_xilinx_bscan(1);
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config_set_xilinx_bscan(1);
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}
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}
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// Set Altera Virtual JTAG mode on or off. If not forced, then enable
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// if the target device has an Altera manufacturer IDCODE
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if(force_alt_vjtag == 1) {
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config_set_alt_vjtag(1);
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} else if(force_alt_vjtag == -1) {
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config_set_alt_vjtag(0);
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config_set_alt_vjtag(0);
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} else {
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if(manuf_id == ALTERA_MANUFACTURER_ID) {
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config_set_alt_vjtag(1);
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} else {
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config_set_alt_vjtag(0);
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}
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}
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}
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// Do a sanity test
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// Do a sanity test
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cmd = bsdl_get_idcode_cmd(idcodes[target_dev_pos]);
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cmd = bsdl_get_idcode_cmd(idcodes[target_dev_pos]);
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if(cmd != TAP_CMD_INVALID) {
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if(cmd != TAP_CMD_INVALID) {
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Line 248... |
} else {
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} else {
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printf("Warning: IDCODE sanity test failed. Read IDCODE 0x%08X, expected 0x%08X\n", id_read, idcodes[target_dev_pos]);
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printf("Warning: IDCODE sanity test failed. Read IDCODE 0x%08X, expected 0x%08X\n", id_read, idcodes[target_dev_pos]);
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}
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}
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}
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}
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printf("Enable Debug Module\n");
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if(err |= tap_enable_debug_module()) { // Select the debug unit in the TAP.
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if(err |= tap_enable_debug_module()) { // Select the debug unit in the TAP.
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printf("Error %s enabling debug module, aborting.\n", get_err_string(err));
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printf("Error %s enabling debug module, aborting.\n", get_err_string(err));
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close_ftdi_device();
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exit(1);
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exit(1);
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}
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}
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}
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}
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Line 267... |
#endif
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#endif
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printf("Copyright (C) 2008 Nathan Yawn, nathan.yawn@opencores.org\n\n");
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printf("Copyright (C) 2008 Nathan Yawn, nathan.yawn@opencores.org\n\n");
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printf("Usage: %s (options) [cable] (cable options)\n", func);
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printf("Usage: %s (options) [cable] (cable options)\n", func);
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printf("Options:\n");
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printf("Options:\n");
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printf("\t-g [port] : port number for GDB (default: 9999)\n");
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printf("\t-g [port] : port number for GDB (default: 9999)\n");
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printf("\t-d [num] : Set the maximum devices in the scan chain (default: 1)\n");
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printf("\t-x [index] : Position of the target device in the scan chain\n");
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printf("\t-x [index] : Position of the target device in the scan chain\n");
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printf("\t-a [0 / 1] : force Altera virtual JTAG mode off (0) or on (1)\n");
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printf("\t-a [0 / 1] : force Altera virtual JTAG mode off (0) or on (1)\n");
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printf("\t-l [<index>:<bits>] : Specify length of IR register for device\n");
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printf("\t-l [<index>:<bits>] : Specify length of IR register for device\n");
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printf("\t <index>, override autodetect (if any)\n");
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printf("\t <index>, override autodetect (if any)\n");
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printf("\t-c [hex cmd] : Debug command for target TAP, override autodetect\n");
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printf("\t-c [hex cmd] : Debug command for target TAP, override autodetect\n");
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Line 295... |
port = NULL;
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port = NULL;
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force_alt_vjtag = 0;
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force_alt_vjtag = 0;
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cmd_line_cmd_debug = -1;
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cmd_line_cmd_debug = -1;
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/* Parse the global arguments (if-any) */
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/* Parse the global arguments (if-any) */
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while((c = getopt(argc, argv, "+g:d:x:a:l:c:v:r:b:th")) != -1) {
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while((c = getopt(argc, argv, "+g:x:a:l:c:v:r:b:th")) != -1) {
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switch(c) {
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switch(c) {
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case 'h':
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case 'h':
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print_usage(argv[0]);
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print_usage(argv[0]);
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exit(0);
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exit(0);
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break;
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break;
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case 'g':
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case 'g':
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port = optarg;
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port = optarg;
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break;
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break;
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case 'd':
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max_devices = atoi(optarg);
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break;
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case 'x':
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case 'x':
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target_dev_pos = atoi(optarg);
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target_dev_pos = atoi(optarg);
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break;
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break;
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case 'l':
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case 'l':
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get_ir_opts(optarg, &idx, &val); // parse the option
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get_ir_opts(optarg, &idx, &val); // parse the option
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Line 393... |
}
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}
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}
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}
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}
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}
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int main(int argc, char *argv[]) {
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int main(int argc, char *argv[]) {
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char *s;
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char *s;
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long int serverPort;
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long int serverPort;
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srand(getpid());
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srand(getpid());
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| Line 449... |
Line 423... |
if(do_selftest) {
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if(do_selftest) {
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// Test the connection.
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// Test the connection.
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printf("*** Doing self-test ***\n");
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printf("*** Doing self-test ***\n");
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if(dbg_test() != APP_ERR_NONE) {
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if(dbg_test() != APP_ERR_NONE) {
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printf("Self-test FAILED *** Bailing out!\n");
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printf("Self-test FAILED *** Bailing out!\n");
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close_ftdi_device();
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exit(1);
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exit(1);
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}
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}
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printf("*** Self-test PASSED ***\n");
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printf("*** Self-test PASSED ***\n");
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}
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}
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/* We have a connection. Establish server. */
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/* We have a connection. Establish server. */
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serverPort = strtol(port,&s,10);
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serverPort = strtol(port,&s,10);
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if(*s) {
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if(*s) return -1;
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close_ftdi_device();
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return -1;
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}
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rsp_init(serverPort);
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rsp_init(serverPort);
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printf("JTAG bridge ready!\n");
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printf("JTAG bridge ready!\n");
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| Line 472... |
Line 442... |
// with the select()/poll(), but the or1ksim rsp code (ported for use here) doesn't work
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// with the select()/poll(), but the or1ksim rsp code (ported for use here) doesn't work
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// that way, and I don't want to rework that code (to make it easier to import fixes
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// that way, and I don't want to rework that code (to make it easier to import fixes
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// written for the or1ksim rsp server). --NAY
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// written for the or1ksim rsp server). --NAY
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while(handle_rsp());
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while(handle_rsp());
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close_ftdi_device();
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return 0;
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return 0;
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}
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}
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//////////////////////////////////////////////////
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//////////////////////////////////////////////////
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// Helper functions
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// Helper functions
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