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Merge pull request #432 from bg-gsl/lattice_encrypted 

Lattice encrypted bitstreams
This commit is contained in:
Gwenhael Goavec-Merou 2024-02-13 14:19:00 +01:00 committed by GitHub
parent 4c4b132c2c ffc519c0e2
commit d5dcf03fc7
No known key found for this signature in database
GPG Key ID: B5690EEEBB952194
3 changed files with 22 additions and 10 deletions
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10
src/board.hpp
View File

@ -131,10 +131,10 @@ static std::map <std::string, target_board_t> board_list = {
JTAG_BOARD("colorlight-i5", "", "cmsisdap", 0, 0, CABLE_DEFAULT),
JTAG_BOARD("colorlight-i9", "", "cmsisdap", 0, 0, CABLE_DEFAULT),
JTAG_BOARD("colorlight-i9+", "xc7a50tfgg484", "", 0, 0, CABLE_DEFAULT),
JTAG_BOARD("crosslinknx_evn", "", "ft2232", 0, 0, CABLE_DEFAULT),
JTAG_BOARD("certusnx_versa_evn", "", "ft2232", 0, 0, CABLE_DEFAULT),
JTAG_BOARD("certuspronx_evn", "", "ft2232", 0, 0, CABLE_DEFAULT),
JTAG_BOARD("certuspronx_versa_evn", "", "ft2232", 0, 0, CABLE_DEFAULT),
JTAG_BOARD("crosslinknx_evn", "", "ft2232", 0, 0, CABLE_MHZ(1)),
JTAG_BOARD("certusnx_versa_evn", "", "ft2232", 0, 0, CABLE_MHZ(1)),
JTAG_BOARD("certuspronx_evn", "", "ft2232", 0, 0, CABLE_MHZ(1)),
JTAG_BOARD("certuspronx_versa_evn", "", "ft2232", 0, 0, CABLE_MHZ(1)),
JTAG_BOARD("cyc1000", "10cl025256", "ft2232", 0, 0, CABLE_DEFAULT),
JTAG_BOARD("c10lp-refkit", "10cl055484", "ft2232", 0, 0, CABLE_DEFAULT),
JTAG_BOARD("de0", "", "usb-blaster",0, 0, CABLE_DEFAULT),
@ -160,7 +160,7 @@ static std::map <std::string, target_board_t> board_list = {
SPI_BOARD("gatemate_evb_spi", "colognechip", "gatemate_evb_spi",
DBUS4, DBUS5, CBUS0, DBUS3, DBUS0, DBUS1, DBUS2, 0, 0, CABLE_DEFAULT),
JTAG_BOARD("genesys2", "xc7k325tffg900", "digilent_b", 0, 0, CABLE_DEFAULT),
JTAG_BOARD("gr740-mini", "", "ft4232hp_b", 0, 0, CABLE_DEFAULT),
JTAG_BOARD("gr740-mini", "", "ft4232hp_b", 0, 0, CABLE_MHZ(1)),
JTAG_BOARD("hseda-xc6slx16", "xc6slx16ftg256", "", 0, 0, CABLE_DEFAULT),
/* most ice40 boards uses the same pinout */
SPI_BOARD("ice40_generic", "lattice", "ft2232",

16
src/lattice.cpp
View File

@ -1080,7 +1080,8 @@ void Lattice::displayReadReg(uint64_t dev)
err = (dev >> 23)&0x07;
}
printf("\t");
printf("\tBSE Error Code\n");
printf("\t\t");
switch (err) {
case 0:
printf("No err\n");
@ -1106,8 +1107,17 @@ void Lattice::displayReadReg(uint64_t dev)
case 7:
printf("SDM EOF\n");
break;
case 8:
printf("Authentication ERR\n");
break;
case 9:
printf("Authentication Setup ERR\n");
break;
case 10:
printf("Bitstream Engine Timeout ERR\n");
break;
default:
printf("unknown %x\n", err);
printf("unknown error: %x\n", err);
}
if (_fpga_family == NEXUS_FAMILY) {
@ -1164,7 +1174,7 @@ void Lattice::displayReadReg(uint64_t dev)
printf("Bitstream Engine Timeout ERR\n");
break;
default:
printf("unknown %x\n", err);
printf("unknown error: %x\n", err);
}
if ((dev >> 38) & 0x01) printf("\tBypass Mode\n");
if ((dev >> 39) & 0x01) printf("\tFlow Through Mode\n");

6
src/latticeBitParser.cpp
View File

@ -68,7 +68,8 @@ int LatticeBitParser::parseHeader()
printError("Preamble key not found");
return EXIT_FAILURE;
}
if ((uint8_t)_raw_data[pos-1] != 0xbd && (uint8_t)_raw_data[pos-1] != 0xbf) {
//0xbe is the key for encrypted bitstreams in Nexus fpgas
if ((uint8_t)_raw_data[pos-1] != 0xbd && (uint8_t)_raw_data[pos-1] != 0xbf && (uint8_t)_raw_data[pos-1] != 0xbe) {
printError("Wrong preamble key");
return EXIT_FAILURE;
}
@ -98,7 +99,8 @@ int LatticeBitParser::parse()
/* check preamble */
uint32_t preamble = (*(uint32_t *)&_raw_data[_endHeader+1]);
if ((preamble != 0xb3bdffff) && (preamble != 0xb3bfffff)) {
//0xb3beffff is the preamble for encrypted bitstreams in Nexus fpgas
if ((preamble != 0xb3bdffff) && (preamble != 0xb3bfffff) && (preamble != 0xb3beffff)) {
printError("Error: missing preamble\n");
return EXIT_FAILURE;
}