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| author | William D. Jones <thor0505@comcast.net> | 2017-12-31 01:52:59 -0500 |
|---|---|---|
| committer | William D. Jones <thor0505@comcast.net> | 2017-12-31 01:52:59 -0500 |
| commit | 182e9350de009dc014ad15cf168afb5e98a38df2 (patch) | |
| tree | 8ea6e2adec5830866b4cd2428d1c1ca7cec7b255 /icepack | |
| parent | c093efc01558a56a0ab2ee35d0c896ce3f692bbe (diff) | |
| download | icestorm-182e9350de009dc014ad15cf168afb5e98a38df2.tar.gz icestorm-182e9350de009dc014ad15cf168afb5e98a38df2.tar.bz2 icestorm-182e9350de009dc014ad15cf168afb5e98a38df2.zip | |
Enable writing nosleep config bit into output bitstream.
Diffstat (limited to 'icepack')
| -rw-r--r-- | icepack/icepack.cc | 41 |
1 files changed, 30 insertions, 11 deletions
diff --git a/icepack/icepack.cc b/icepack/icepack.cc index b1d0bc6..ac3e8c6 100644 --- a/icepack/icepack.cc +++ b/icepack/icepack.cc @@ -117,7 +117,7 @@ struct FpgaConfig void write_bits(std::ostream &ofs) const; // icebox i/o - void read_ascii(std::istream &ifs); + void read_ascii(std::istream &ifs, bool nosleep); void write_ascii(std::ostream &ofs) const; // netpbm i/o @@ -453,15 +453,26 @@ void FpgaConfig::write_bits(std::ostream &ofs) const write_byte(ofs, crc_value, file_offset, 0x05); crc_value = 0xffff; - debug("Setting warmboot to '%s'.\n", this->warmboot.c_str()); - write_byte(ofs, crc_value, file_offset, 0x92); - write_byte(ofs, crc_value, file_offset, 0x00); - if (this->warmboot == "disabled") + { + uint8_t nosleep_flag; + debug("Setting warmboot to '%s', nosleep to '%s'.\n", this->warmboot.c_str(), this->nosleep.c_str()); + write_byte(ofs, crc_value, file_offset, 0x92); write_byte(ofs, crc_value, file_offset, 0x00); - else if (this->warmboot == "enabled") - write_byte(ofs, crc_value, file_offset, 0x20); - else - error("Unknown warmboot setting '%s'.\n", this->warmboot.c_str()); + + if (this->nosleep == "disabled") + nosleep_flag = 0; + else if (this->nosleep == "enabled") + nosleep_flag = 1; + else + error("Unknown nosleep setting '%s'.\n", this->nosleep.c_str()); + + if (this->warmboot == "disabled") + write_byte(ofs, crc_value, file_offset, 0x00 | nosleep_flag); + else if (this->warmboot == "enabled") + write_byte(ofs, crc_value, file_offset, 0x20 | nosleep_flag); + else + error("Unknown warmboot setting '%s'.\n", this->warmboot.c_str()); + } debug("CRAM: Setting bank width to %d.\n", this->cram_width); write_byte(ofs, crc_value, file_offset, 0x62); @@ -590,7 +601,7 @@ void FpgaConfig::write_bits(std::ostream &ofs) const write_byte(ofs, crc_value, file_offset, 0x00); } -void FpgaConfig::read_ascii(std::istream &ifs) +void FpgaConfig::read_ascii(std::istream &ifs, bool nosleep) { debug("## %s\n", __PRETTY_FUNCTION__); info("Parsing ascii file..\n"); @@ -719,6 +730,14 @@ void FpgaConfig::read_ascii(std::istream &ifs) continue; } + // No ".nosleep" section despite sharing the same byte as .warmboot. + // ".nosleep" is specified when icepack is invoked, which is too late. + // So we inject the section based on command line argument. + if (nosleep) + this->nosleep = "enabled"; + else + this->nosleep = "disabled"; + if (command == ".io_tile" || command == ".logic_tile" || command == ".ramb_tile" || command == ".ramt_tile" || command.substr(0, 4) == ".dsp" || command == ".ipcon_tile") { if (!got_device) @@ -1378,7 +1397,7 @@ int main(int argc, char **argv) if (!netpbm_mode) fpga_config.write_ascii(*osp); } else { - fpga_config.read_ascii(*isp); + fpga_config.read_ascii(*isp, nosleep_mode); if (!netpbm_mode) fpga_config.write_bits(*osp); } |