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| author | William D. Jones <thor0505@comcast.net> | 2021-01-30 22:10:37 -0500 |
|---|---|---|
| committer | gatecat <gatecat@ds0.me> | 2021-02-12 10:36:59 +0000 |
| commit | 56656b2b244127763ced9cb95332b09e1aa5ab81 (patch) | |
| tree | a774cfd9af3b9575336dc8171f6805ab5ec4b97f /machxo2/bitstream.cc | |
| parent | 695fb7e569a9b8368ecf623029997248910d753e (diff) | |
| download | nextpnr-56656b2b244127763ced9cb95332b09e1aa5ab81.tar.gz nextpnr-56656b2b244127763ced9cb95332b09e1aa5ab81.tar.bz2 nextpnr-56656b2b244127763ced9cb95332b09e1aa5ab81.zip | |
machxo2: Emit empty bitstream file.
Diffstat (limited to 'machxo2/bitstream.cc')
| -rw-r--r-- | machxo2/bitstream.cc | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/machxo2/bitstream.cc b/machxo2/bitstream.cc index 6e1dbb11..eec07cb1 100644 --- a/machxo2/bitstream.cc +++ b/machxo2/bitstream.cc @@ -18,15 +18,52 @@ * */ +#include <fstream> + #include "bitstream.h" #include "config.h" NEXTPNR_NAMESPACE_BEGIN +// These seem simple enough to do inline for now. +namespace BaseConfigs { + void config_empty_lcmxo2_1200hc(ChipConfig &cc) + { + cc.chip_name = "LCMXO2-1200HC"; + + cc.tiles["EBR_R6C11:EBR1"].add_unknown(0, 12); + cc.tiles["EBR_R6C15:EBR1"].add_unknown(0, 12); + cc.tiles["EBR_R6C18:EBR1"].add_unknown(0, 12); + cc.tiles["EBR_R6C21:EBR1"].add_unknown(0, 12); + cc.tiles["EBR_R6C2:EBR1"].add_unknown(0, 12); + cc.tiles["EBR_R6C5:EBR1"].add_unknown(0, 12); + cc.tiles["EBR_R6C8:EBR1"].add_unknown(0, 12); + + cc.tiles["PT4:CFG0"].add_unknown(5, 30); + cc.tiles["PT4:CFG0"].add_unknown(5, 32); + cc.tiles["PT4:CFG0"].add_unknown(5, 36); + + cc.tiles["PT7:CFG3"].add_unknown(5, 18); + } +} // namespace BaseConfigs + void write_bitstream(Context *ctx, std::string text_config_file) { ChipConfig cc; + switch (ctx->args.type) { + case ArchArgs::LCMXO2_1200HC: + BaseConfigs::config_empty_lcmxo2_1200hc(cc); + break; + default: + NPNR_ASSERT_FALSE("Unsupported device type"); + } + + // Configure chip + if (!text_config_file.empty()) { + std::ofstream out_config(text_config_file); + out_config << cc; + } } NEXTPNR_NAMESPACE_END |