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machxo2: Emit empty bitstream file.

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William D. Jones 2021-01-30 22:10:37 -05:00 committed by gatecat
parent 695fb7e569
commit 56656b2b24
1 changed files with 37 additions and 0 deletions
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37
machxo2/bitstream.cc
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@ -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