CMakeLists.txt

@@ -3,6 +3,7 @@ cmake_minimum_required(VERSION 3.5)
 # set the project name
 project(openFPGALoader VERSION "0.13.1" LANGUAGES CXX)
 add_definitions(-DVERSION=\"v${PROJECT_VERSION}\")
+
 option(ENABLE_OPTIM "Enable build with -O3 optimization level" ON)
 option(BUILD_STATIC "Whether or not to build with static libraries" OFF)
 if (${CMAKE_SYSTEM_NAME} MATCHES "Windows")
@@ -28,7 +29,7 @@ set(ISE_PATH "/opt/Xilinx/14.7" CACHE STRING "ise root directory (default: /opt/
 set(CMAKE_CXX_STANDARD 11)
 set(CMAKE_CXX_STANDARD_REQUIRED True)
 set(CMAKE_CXX_FLAGS_DEBUG "-g -Wall -Wextra ${CMAKE_CXX_FLAGS_DEBUG}")
-if(ENABLE_OPTIM AND NOT(CMAKE_BUILD_TYPE STREQUAL "Debug"))
+if (ENABLE_OPTIM)
 	set(CMAKE_CXX_FLAGS "-O3 ${CMAKE_CXX_FLAGS}")
 endif()
 

README.md

@@ -89,7 +89,7 @@ openFPGALoader -- a program to flash FPGA
                                 with dump-flash
       --file-type arg           provides file type instead of let's deduced
                                 by using extension
-      --flash-sector arg        flash sector (Lattice and Altera MAX10 parts only)
+      --flash-sector arg        flash sector (Lattice parts only)
       --fpga-part arg           fpga model flavor + package
       --freq arg                jtag frequency (Hz)
   -f, --write-flash             write bitstream in flash (default: false)

doc/boards.yml

@@ -494,7 +494,7 @@
   URL: https://www.xilinx.com/products/boards-and-kits/kcu105.html
   FPGA: Kintex UltraScale xcku040-ffva1156
   Memory: OK
-  Flash: OK (primary and secondary)
+  Flash: OK
 
 - ID: kcu116
   Description: Xilinx KCU116

doc/guide/advanced.rst

@@ -34,7 +34,7 @@ Reading the bitstream from STDIN
   .. code-block:: bash
 
     # FPGA side
-    nc -lp port | openFPGALoader --file-type xxx [option]
+    nc -lp port | openFPGALoader --file-type xxx [option
 
     # Bitstream side
     nc -q 0 host port < /path/to/bitstream.ext
@@ -83,35 +83,6 @@ Writing to an arbitrary address in flash memory
 With FPGA using an external SPI flash (*xilinx*, *lattice ECP5/nexus/ice40*, *anlogic*, *efinix*) option ``-o`` allows
 one to write raw binary file to an arbitrary adress in FLASH.
 
-Detect/read/write on primary/secondary flash memories
-=====================================================
-
-With FPGA using two external SPI flash (some *xilinx* boards) option ``--target-flash`` allows to select the QSPI chip.
-
-To detect:
-
-.. code-block:: bash
-
-    openFPGALoader -b kcu105 -f --target-flash {primary,secondary} --detect
-
-To read the primary flash memory:
-
-.. code-block:: bash
-
-    openFPGALoader -b kcu105 -f --target-flash primary --dump-flash --file-size N_BYTES mydump.bin
-
-and the second flash memory:
-
-.. code-block:: bash
-
-    openFPGALoader -b kcu105 -f --target-flash secondary --dump-flash --file-size N_BYTES --secondary-bitstream mydump.bin
-
-To write on secondary flash memory:
-
-.. code-block:: bash
-
-    openFPGALoader -b kcu105 -f --target-flash secondary --secondary-bitstream mySecondaryBitstream.bin
-
 Using an alternative directory for *spiOverJtag*
 ================================================
 

spiOverJtag/build.py

@@ -117,7 +117,6 @@ if tool in ["ise", "vivado"]:
         "xc7s25csga225"    : "xc7s_csga225",
         "xc7s25csga324"    : "xc7s_csga324",
         "xc7s50csga324"    : "xc7s_csga324",
-        "xc7s75fgga676"    : "xc7s_fgga676",
         "xcku040-ffva1156" : "xcku040_ffva1156",
         "xcku060-ffva1156" : "xcku060_ffva1156",
         "xcvu9p-flga2104"  : "xcvu9p_flga2104",

spiOverJtag/constr_xc7s_fgga676.xdc

@@ -1,10 +0,0 @@
-set_property CFGBVS VCCO [current_design]
-set_property CONFIG_VOLTAGE 3.3 [current_design]
-set_property BITSTREAM.CONFIG.SPI_BUSWIDTH {4} [current_design]
-set_property BITSTREAM.GENERAL.COMPRESS TRUE [current_design]
-
-set_property -dict {PACKAGE_PIN R20 IOSTANDARD LVCMOS33} [get_ports {csn}];
-set_property -dict {PACKAGE_PIN N23 IOSTANDARD LVCMOS33} [get_ports {sdi_dq0}];
-set_property -dict {PACKAGE_PIN N24 IOSTANDARD LVCMOS33} [get_ports {sdo_dq1}];
-set_property -dict {PACKAGE_PIN P23 IOSTANDARD LVCMOS33} [get_ports {wpn_dq2}];
-set_property -dict {PACKAGE_PIN R23 IOSTANDARD LVCMOS33} [get_ports {hldn_dq3}];

src/altera.cpp

@@ -31,14 +31,12 @@ Altera::Altera(Jtag *jtag, const std::string &filename,
 	const std::string &file_type, Device::prog_type_t prg_type,
 	const std::string &device_package,
 	const std::string &spiOverJtagPath, bool verify, int8_t verbose,
-	const std::string &flash_sectors,
 	bool skip_load_bridge, bool skip_reset):
 	Device(jtag, filename, file_type, verify, verbose),
 	SPIInterface(filename, verbose, 256, verify, skip_load_bridge,
 				 skip_reset),
 	_device_package(device_package), _spiOverJtagPath(spiOverJtagPath),
-	_vir_addr(0x1000), _vir_length(14), _clk_period(1),
-	_flash_sectors(flash_sectors)
+	_vir_addr(0x1000), _vir_length(14), _clk_period(1)
 {
 	/* check device family */
 	_idcode = _jtag->get_target_device_id();
@@ -405,7 +403,6 @@ bool Altera::max10_program_ufm(const Altera::max10_mem_t *mem, unsigned int offs
 void Altera::max10_program(unsigned int offset)
 {
 	uint32_t base_addr;
-	uint8_t update_sectors;
 
 	/* Needs to have some specifics informations about internal flash size/organisation
 	 * and some magics.
@@ -482,54 +479,27 @@ void Altera::max10_program(unsigned int offset)
 	const uint8_t *dsm_data = _bit.getData("ICB");
 	const int dsm_len = _bit.getLength("ICB") / 32;  // getLength (bits) dsm_len in 32bits word
 
-	/* Check for a full update or only for a subset */
-	if (_flash_sectors.size() > 0) {
-		const std::vector<std::string> sectors = splitString(_flash_sectors, ',');
-		update_sectors = 0;
-		for (const auto &sector: sectors) {
-			if (sector == "UFM1")
-				update_sectors |= (1 << 0);
-			else if (sector == "UFM0")
-				update_sectors |= (1 << 1);
-			else if (sector == "CFM2")
-				update_sectors |= (1 << 2);
-			else if (sector == "CFM1")
-				update_sectors |= (1 << 3);
-			else if (sector == "CFM0")
-				update_sectors |= (1 << 4);
-			else
-				throw std::runtime_error("Unknown sector " + sector);
-		}
-	} else { // full update
-		update_sectors = 0x1F;
-	}
-
 	// Start!
 	max10_flow_enable();
 
-	max10_flow_erase(&mem, update_sectors);
-	if (update_sectors == 0x1f)
-		max10_dsm_verify();
+	max10_flow_erase(&mem, 0x1F);
+	max10_dsm_verify();
 
 	/* Write */
 
 	// UFM 1 -> 0
 	base_addr = mem.ufm_addr;
 	for (int i = 1; i >= 0; i--) {
-		if (update_sectors & (1 << i)) {
-			printInfo("Write UFM" + std::to_string(i));
-			writeXFM(ufm_data[i], base_addr, 0, mem.ufm_len[i]);
-		}
+		printInfo("Write UFM" + std::to_string(i));
+		writeXFM(ufm_data[i], base_addr, 0, mem.ufm_len[i]);
 		base_addr += mem.ufm_len[i];
 	}
 
 	// CFM2 -> 0
 	base_addr = mem.cfm_addr;
 	for (int i = 2; i >= 0; i--) {
-		if (update_sectors & (1 << ((2 - i) + 2))) {
-			printInfo("Write CFM" + std::to_string(i));
-			writeXFM(cfm_data[i], base_addr, 0, mem.cfm_len[i]);
-		}
+		printInfo("Write CFM" + std::to_string(i));
+		writeXFM(cfm_data[i], base_addr, 0, mem.cfm_len[i]);
 		base_addr += mem.cfm_len[i];
 	}
 
@@ -538,35 +508,29 @@ void Altera::max10_program(unsigned int offset)
 		// UFM 1 -> 0
 		base_addr = mem.ufm_addr;
 		for (int i = 1; i >= 0; i--) {
-			if (update_sectors & (1 << i)) {
-				printInfo("Verify UFM" + std::to_string(i));
-				verifyxFM(ufm_data[i], base_addr, 0, mem.ufm_len[i]);
-			}
+			printInfo("Verify UFM" + std::to_string(i));
+			verifyxFM(ufm_data[i], base_addr, 0, mem.ufm_len[i]);
 			base_addr += mem.ufm_len[i];
 		}
 
 		// CFM2->0
 		base_addr = mem.cfm_addr;
 		for (int i = 2; i >= 0; i--) {
-			if (update_sectors & (1 << ((2 - i) + 2))) {
-				printInfo("Verify CFM" + std::to_string(i));
-				verifyxFM(cfm_data[i], base_addr, 0, mem.cfm_len[i]);
-			}
+			printInfo("Verify CFM" + std::to_string(i));
+			verifyxFM(cfm_data[i], base_addr, 0, mem.cfm_len[i]);
 			base_addr += mem.cfm_len[i];
 		}
 	}
 
 	// DSM
 
-	if (update_sectors == 0x1F) {
-		max10_dsm_program(dsm_data, dsm_len);
-		max10_dsm_verify();
+	max10_dsm_program(dsm_data, dsm_len);
+	max10_dsm_verify();
 
-		max10_flow_program_donebit(mem.done_bit_addr);
-		max10_dsm_verify();
-		max10_dsm_program_success(mem.pgm_success_addr);
-		max10_dsm_verify();
-	}
+	max10_flow_program_donebit(mem.done_bit_addr);
+	max10_dsm_verify();
+	max10_dsm_program_success(mem.pgm_success_addr);
+	max10_dsm_verify();
 
 	/* disable ISC flow */
 	max10_flow_disable();

src/altera.hpp

@@ -22,7 +22,6 @@ class Altera: public Device, SPIInterface {
 				const std::string &device_package,
 				const std::string &spiOverJtagPath,
 				bool verify, int8_t verbose,
-				const std::string &flash_sectors,
 				bool skip_load_bridge, bool skip_reset);
 		~Altera();
 
@@ -153,7 +152,6 @@ class Altera: public Device, SPIInterface {
 
 		altera_family_t _fpga_family;
 		uint32_t _idcode;
-		std::string _flash_sectors; /**< MAX10 Only: list of sectors to erase/write */
 };
 
 #endif  // SRC_ALTERA_HPP_

src/board.hpp

@@ -174,7 +174,7 @@ static std::map <std::string, target_board_t> board_list = {
 			0, 0, CABLE_DEFAULT),
 	DFU_BOARD("icebreaker-bitsy", "", "dfu", 0x1d50, 0x6146, 0),
 	JTAG_BOARD("kc705",           "", "digilent", 0, 0, CABLE_DEFAULT),
-	JTAG_BOARD("kcu105",          "xcku040-ffva1156", "jtag-smt2-nc", 0, 0, CABLE_DEFAULT),
+	JTAG_BOARD("kcu105",          "", "jtag-smt2-nc", 0, 0, CABLE_DEFAULT),
 	JTAG_BOARD("kcu116",          "xcku5p-ffvb676", "jtag-smt2-nc", 0, 0, CABLE_DEFAULT),
 	JTAG_BOARD("LD-SCHOKO",       "LFE5U-45F-6CABGA256", "", 0, 0, CABLE_MHZ(6)),
 	DFU_BOARD("LD-SCHOKO-DFU",        "", "dfu", 0x16d0, 0x116d, 0),

src/common.cpp

@@ -6,9 +6,8 @@
 
 #include "common.hpp"
 
-#include <cstdlib>
 #include <string>
-#include <vector>
+#include <cstdlib>
 
 /*!
  * \brief return shell environment variable value
@@ -20,23 +19,3 @@ const std::string get_shell_env_var(const char* key,
 	const char* ret = std::getenv(key);
 	return std::string(ret ? ret : def_val);
 }
-
-/*!
- * \brief convert a string, separate by delim to a vector
- * \param[in] in: string to split
- * \param[in] delim: split caracter
- * \return vector a substring
- */
-const std::vector<std::string> splitString(const std::string& in,
-		const char delim) noexcept {
-	std::vector<std::string> tokens;
-	size_t start = 0, end = 0;
-
-	while ((end = in.find(delim, start)) != std::string::npos) {
-		tokens.push_back(in.substr(start, end - start));
-		start = end + 1;
-	}
-
-	tokens.push_back(in.substr(start)); // Add the last token
-	return tokens;
-}

src/common.hpp

@@ -7,7 +7,6 @@
 #define SRC_COMMON_HPP_
 
 #include <string>
-#include <vector>
 
 /*!
  * \brief return shell environment variable value
@@ -18,13 +17,4 @@
 const std::string get_shell_env_var(const char* key,
 	const char *def_val="") noexcept;
 
-/*!
- * \brief convert a string, separate by delim to a vector
- * \param[in] in: string to split
- * \param[in] delim: split caracter
- * \return vector a substring
- */
-const std::vector<std::string> splitString(const std::string& in,
-	const char delim) noexcept;
-
 #endif  // SRC_COMMON_HPP_

src/gowin.cpp

@@ -911,10 +911,7 @@ bool Gowin::eraseSRAM()
 	// is set
 	bool auto_boot_2nd_fail = (status & (1 << 4)) == (1 << 4);
 	bool is_timeout = (status & (1 << 3)) == (1 << 3);
-	bool bad_cmd = (status & STATUS_BAD_COMMAND) == STATUS_BAD_COMMAND;
-	uint8_t loop = 0;
-	bool must_loop = is_gw5a;
-	if (is_gw5a && (is_timeout || auto_boot_2nd_fail || bad_cmd)) {
+	if (is_gw5a && (is_timeout || auto_boot_2nd_fail)) {
 		send_command(CONFIG_ENABLE);
 		send_command(0x3F);
 		send_command(CONFIG_DISABLE);
@@ -923,44 +920,36 @@ bool Gowin::eraseSRAM()
 		send_command(NOOP);
 		_jtag->toggleClk(125 * 8);
 	}
-	do {
 
-		if (!enableCfg()) {
-			printError("FAIL");
-			return false;
-		}
-		send_command(ERASE_SRAM);
-		send_command(NOOP);
+	if (!enableCfg()) {
+		printError("FAIL");
+		return false;
+	}
+	send_command(ERASE_SRAM);
+	send_command(NOOP);
 
-		/* TN653 specifies to wait for 4ms with
-		 * clock generated but
-		 * status register bit MEMORY_ERASE goes low when ERASE_SRAM
-		 * is send and goes high after erase
-		 * this check seems enough
-		 */
-		if (_idcode == 0x0001081b) // seems required for GW5AST...
-			sendClkUs(10000);
-		if (pollFlag(STATUS_MEMORY_ERASE, STATUS_MEMORY_ERASE)) {
-			if (_verbose)
-				displayReadReg("after erase sram", readStatusReg());
-		} else {
-			printError("FAIL");
-			return false;
-		}
+	/* TN653 specifies to wait for 4ms with
+	 * clock generated but
+	 * status register bit MEMORY_ERASE goes low when ERASE_SRAM
+	 * is send and goes high after erase
+	 * this check seems enough
+	 */
+	if (_idcode == 0x0001081b) // seems required for GW5AST...
+		sendClkUs(10000);
+	if (pollFlag(STATUS_MEMORY_ERASE, STATUS_MEMORY_ERASE)) {
+		if (_verbose)
+			displayReadReg("after erase sram", readStatusReg());
+	} else {
+		printError("FAIL");
+		return false;
+	}
 
-		send_command(XFER_DONE);
-		send_command(NOOP);
-		if (!disableCfg()) {
-			printError("FAIL");
-			return false;
-		}
-		if (is_gw5a) {
-			uint32_t status_reg = readStatusReg();
-			if ((loop >= 1) && ((status_reg & (1 << 13)) == 0))
-				must_loop = false;
-			loop++;
-		}
-	} while(must_loop);
+	send_command(XFER_DONE);
+	send_command(NOOP);
+	if (!disableCfg()) {
+		printError("FAIL");
+		return false;
+	}
 
 	if (_mode == Device::FLASH_MODE) {
 		uint32_t status_reg = readStatusReg();
@@ -1190,18 +1179,16 @@ bool Gowin::dumpFlash(uint32_t base_addr, uint32_t len)
 
 bool Gowin::prepare_flash_access()
 {
-	/* Work around FPGA stuck in Bad Command status */
-	if (is_gw5a) {
-		reset();
-		_jtag->set_state(Jtag::RUN_TEST_IDLE);
-		_jtag->toggleClk(1000000);
-	}
 	if (!eraseSRAM()) {
 		printError("Error: fail to erase SRAM");
 		return false;
 	}
 
 	if (is_gw5a) {
+		if (!eraseSRAM()) {
+			printError("Error: fail to erase SRAM");
+			return false;
+		}
 		usleep(100000);
 		if (!gw5a_enable_spi()) {
 			printError("Error: fail to switch GW5A to SPI mode");

src/main.cpp

@@ -18,7 +18,6 @@
 #include "board.hpp"
 #include "cable.hpp"
 #include "colognechip.hpp"
-#include "common.hpp"
 #include "cxxopts.hpp"
 #include "device.hpp"
 #include "dfu.hpp"
@@ -575,7 +574,7 @@ int main(int argc, char **argv)
 		} else if (fab == "altera") {
 			fpga = new Altera(jtag, args.bit_file, args.file_type,
 				args.prg_type, args.fpga_part, args.bridge_path, args.verify,
-				args.verbose, args.flash_sector, args.skip_load_bridge, args.skip_reset);
+				args.verbose, args.skip_load_bridge, args.skip_reset);
 		} else if (fab == "anlogic") {
 			fpga = new Anlogic(jtag, args.bit_file, args.file_type,
 				args.prg_type, args.verify, args.verbose);
@@ -809,7 +808,7 @@ int parse_opt(int argc, char **argv, struct arguments *args,
 			("file-type",
 				"provides file type instead of let's deduced by using extension",
 				cxxopts::value<string>(args->file_type))
-			("flash-sector", "flash sector (Lattice and Altera MAX10 parts only)",
+			("flash-sector", "flash sector (Lattice parts only)",
 				cxxopts::value<string>(args->flash_sector))
 			("fpga-part",   "fpga model flavor + package",
 				cxxopts::value<string>(args->fpga_part))
@@ -1044,8 +1043,7 @@ int parse_opt(int argc, char **argv, struct arguments *args,
 				 args->secondary_bit_file.empty() &&
 				 !args->protect_flash &&
 				 !args->unprotect_flash &&
-				 !args->bulk_erase_flash &&
-				 !args->detect
+				 !args->bulk_erase_flash
 				) {
 				printError("Error: secondary bitfile not specified");
 				cout << options.help() << endl;

src/mcsParser.cpp

@@ -92,10 +92,10 @@ int McsParser::parse()
 		case 4:
 			sscanf((char*)&str[DATA_BASE], "%4x", &loc_addr);
 			_base_addr = (loc_addr << 16);
+			if ((size_t)_base_addr > _bit_data.size())
+				_bit_data.resize(_base_addr);
 			if (_base_addr * 8 > _bit_length)
 				_bit_length = _base_addr * 8;
-			if (_bit_length > _bit_data.size() * 8)
-				_bit_data.resize(_bit_length / 8);
 			sum += (loc_addr & 0xff) + ((loc_addr >> 8) & 0xff);
 			break;
 		default:

src/part.hpp

@@ -70,7 +70,6 @@ static std::map <uint32_t, fpga_model> fpga_list = {
 	{0x03620093, {"xilinx", "spartan7", "xc7s15ftgb196-1", 6}},
 	{0x037c4093, {"xilinx", "spartan7", "xc7s25",          6}},
 	{0x0362f093, {"xilinx", "spartan7", "xc7s50",          6}},
-	{0x037c8093, {"xilinx", "spartan7", "xc7s75",          6}},
 
 	/* Xilinx Virtex6 */
 	{0x8424a093, {"xilinx", "virtex6", "xc6vlx130t", 10}},

src/spiFlashdb.hpp

@@ -456,22 +456,6 @@ static std::map <uint32_t, flash_t> flash_list = {
 		.quad_register = STATR,
 		.quad_mask = (1 << 6),
 	}},
-	{0xc22019, {
-		/* https://www.mxic.com.tw/Lists/Datasheet/Attachments/8906/MX25L25645G,%203V,%20256Mb,%20v2.0.pdf */
-		.manufacturer = "Macronix",
-		.model = "MX25L25645G",
-		.nr_sector = 512,
-		.sector_erase = true,
-		.subsector_erase = true,
-		.has_extended = false,
-		.tb_otp = true,
-		.tb_offset = (1 << 3),
-		.tb_register = CONFR,
-		.bp_len = 5,
-		.bp_offset = {(1 << 2), (1 << 3), (1 << 4), (1 << 5)},
-		.quad_register = STATR,
-		.quad_mask = (1 << 6),
-	}},
 	{0xc2201a, {
 		/* https://www.macronix.com/Lists/Datasheet/Attachments/8745/MX25L51245G,%203V,%20512Mb,%20v1.7.pdf */
 		.manufacturer = "Macronix",
@@ -596,66 +580,6 @@ static std::map <uint32_t, flash_t> flash_list = {
 		.quad_register = NONER,
 		.quad_mask = 0,
 	}},
-	{0x6bbb14, {
-		.manufacturer = "Everspin",
-		.model = "EM008LX",
-		.nr_sector = 16,
-		.sector_erase = true,
-		.subsector_erase = true,
-		.has_extended = true,
-		.tb_otp = false,
-		.tb_offset = (1 << 5),
-		.tb_register = STATR,
-		.bp_len = 4,
-		.bp_offset = {(1 << 2), (1 << 3), (1 << 4), (1 << 6)},
-		.quad_register = NONER,
-		.quad_mask = 0,
-	}},
-	{0x6bbb15, {
-		.manufacturer = "Everspin",
-		.model = "EM016LX",
-		.nr_sector = 32,
-		.sector_erase = true,
-		.subsector_erase = true,
-		.has_extended = true,
-		.tb_otp = false,
-		.tb_offset = (1 << 5),
-		.tb_register = STATR,
-		.bp_len = 4,
-		.bp_offset = {(1 << 2), (1 << 3), (1 << 4), (1 << 6)},
-		.quad_register = NONER,
-		.quad_mask = 0,
-	}},
-	{0x6bbb16, {
-		.manufacturer = "Everspin",
-		.model = "EM032LX",
-		.nr_sector = 64,
-		.sector_erase = true,
-		.subsector_erase = true,
-		.has_extended = true,
-		.tb_otp = false,
-		.tb_offset = (1 << 5),
-		.tb_register = STATR,
-		.bp_len = 4,
-		.bp_offset = {(1 << 2), (1 << 3), (1 << 4), (1 << 6)},
-		.quad_register = NONER,
-		.quad_mask = 0,
-	}},
-	{0x6bbb17, {
-		.manufacturer = "Everspin",
-		.model = "EM064LX",
-		.nr_sector = 128,
-		.sector_erase = true,
-		.subsector_erase = true,
-		.has_extended = true,
-		.tb_otp = false,
-		.tb_offset = (1 << 5),
-		.tb_register = STATR,
-		.bp_len = 4,
-		.bp_offset = {(1 << 2), (1 << 3), (1 << 4), (1 << 6)},
-		.quad_register = NONER,
-		.quad_mask = 0,
-	}},
 
 };
 

src/svf_jtag.cpp

@@ -230,9 +230,7 @@ void SVF_jtag::parse_runtest(vector<string> const &vstr)
 	}
 	_jtag->set_state(_run_state);
 	_jtag->toggleClk(nb_iter);
-	_jtag->flush();
-	if (min_duration > 0)
-	{
+	if (min_duration > 0) {
 		usleep((useconds_t)(min_duration * 1.0E6));
 	}
 	_jtag->set_state(_end_state);

src/xilinx.cpp

@@ -313,7 +313,7 @@ Xilinx::Xilinx(Jtag *jtag, const std::string &filename,
 		_secondary_file_extension = secondary_filename.substr(
 			secondary_filename.find_last_of(".") + 1);
 		_mode = Device::SPI_MODE;
-		if (!(_device_package == "xcvu9p-flga2104" || _device_package == "xcku5p-ffvb676" || _device_package == "xcku040-ffva1156")) {
+		if (!(_device_package == "xcvu9p-flga2104" || _device_package == "xcku5p-ffvb676")) {
 			throw std::runtime_error("Error: secondary flash unavailable");
 		}
 	}