altera: uses --flash-sector to only update a subset of internal flash sectors

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 parts only)
+      --flash-sector arg        flash sector (Lattice and Altera MAX10 parts only)
       --fpga-part arg           fpga model flavor + package
       --freq arg                jtag frequency (Hz)
   -f, --write-flash             write bitstream in flash (default: false)

src/altera.cpp

@@ -31,12 +31,14 @@ 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)
+	_vir_addr(0x1000), _vir_length(14), _clk_period(1),
+	_flash_sectors(flash_sectors)
 {
 	/* check device family */
 	_idcode = _jtag->get_target_device_id();
@@ -403,6 +405,7 @@ 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.
@@ -479,10 +482,33 @@ 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, 0x1F);
+	max10_flow_erase(&mem, update_sectors);
+	if (update_sectors == 0x1f)
 		max10_dsm_verify();
 
 	/* Write */
@@ -490,16 +516,20 @@ 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("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]);
+		}
 		base_addr += mem.cfm_len[i];
 	}
 
@@ -508,22 +538,27 @@ 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]);
+			}
 			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]);
+			}
 			base_addr += mem.cfm_len[i];
 		}
 	}
 
 	// DSM
 
+	if (update_sectors == 0x1F) {
 		max10_dsm_program(dsm_data, dsm_len);
 		max10_dsm_verify();
 
@@ -531,6 +566,7 @@ void Altera::max10_program(unsigned int offset)
 		max10_dsm_verify();
 		max10_dsm_program_success(mem.pgm_success_addr);
 		max10_dsm_verify();
+	}
 
 	/* disable ISC flow */
 	max10_flow_disable();

src/altera.hpp

@@ -22,6 +22,7 @@ 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();
 
@@ -152,6 +153,7 @@ 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/main.cpp

@@ -18,6 +18,7 @@
 #include "board.hpp"
 #include "cable.hpp"
 #include "colognechip.hpp"
+#include "common.hpp"
 #include "cxxopts.hpp"
 #include "device.hpp"
 #include "dfu.hpp"
@@ -141,6 +142,7 @@ int main(int argc, char **argv)
 		printError("Error in parse arg step");
 		return EXIT_FAILURE;
 	}
+	printf("sectors: %s\n", args.flash_sector.c_str());
 
 	if (args.is_list_command) {
 		displaySupported(args);
@@ -574,7 +576,7 @@ 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.skip_load_bridge, args.skip_reset);
+				args.verbose, args.flash_sector, 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);
@@ -808,7 +810,7 @@ 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 parts only)",
+			("flash-sector", "flash sector (Lattice and Altera MAX10 parts only)",
 				cxxopts::value<string>(args->flash_sector))
 			("fpga-part",   "fpga model flavor + package",
 				cxxopts::value<string>(args->fpga_part))