diff options
| author | David Shah <dave@ds0.me> | 2020-01-13 16:01:08 +0000 |
|---|---|---|
| committer | David Shah <dave@ds0.me> | 2020-11-30 08:45:27 +0000 |
| commit | a280f893d4c7f516372302a03aee5299bbe13d5e (patch) | |
| tree | 718621c7432d450e83ac628a9ae69139987086ea /nexus | |
| parent | f8f3ee06c71aa1726f32821a42193705b8056b82 (diff) | |
| download | nextpnr-a280f893d4c7f516372302a03aee5299bbe13d5e.tar.gz nextpnr-a280f893d4c7f516372302a03aee5299bbe13d5e.tar.bz2 nextpnr-a280f893d4c7f516372302a03aee5299bbe13d5e.zip | |
nexus: Add oscillator support
Signed-off-by: David Shah <dave@ds0.me>
Diffstat (limited to 'nexus')
| -rw-r--r-- | nexus/constids.inc | 2 | ||||
| -rw-r--r-- | nexus/fasm.cc | 15 |
2 files changed, 17 insertions, 0 deletions
diff --git a/nexus/constids.inc b/nexus/constids.inc index edde3bc9..38df628e 100644 --- a/nexus/constids.inc +++ b/nexus/constids.inc @@ -107,4 +107,6 @@ X(IO_TYPE) X(OSC_CORE) X(HFCLKOUT) X(LFCLKOUT) +X(HF_CLK_DIV) + diff --git a/nexus/fasm.cc b/nexus/fasm.cc index 5a2880da..f7841bde 100644 --- a/nexus/fasm.cc +++ b/nexus/fasm.cc @@ -222,6 +222,19 @@ struct NexusFasmWriter write_bit(stringf("BASE_TYPE.%s_%s", iodir, str_or_default(cell->attrs, id_IO_TYPE, "LVCMOS18H").c_str())); pop(3); } + void write_osc(const CellInfo *cell) + { + BelId bel = cell->bel; + push_tile(bel.tile); + push_belname(bel); + write_enum(cell, "HF_OSC_EN"); + write_enum(cell, "HF_FABRIC_EN"); + write_enum(cell, "HFDIV_FABRIC_EN", "ENABLED"); + write_enum(cell, "LF_FABRIC_EN"); + write_enum(cell, "LF_OUTPUT_EN"); + write_int_vector(stringf("HF_CLK_DIV[7:0]"), int_or_default(cell->params, id_HF_CLK_DIV, 0), 8); + pop(2); + } void operator()() { // Write routing @@ -240,6 +253,8 @@ struct NexusFasmWriter write_io33(ci); else if (ci->type == id_SEIO18_CORE) write_io18(ci); + else if (ci->type == id_OSC_CORE) + write_osc(ci); blank(); } } |