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ice40/pll: Add proper support for PLLOUT_SELECT_xxx attributes

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Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
This commit is contained in:
Sylvain Munaut 2018-11-18 16:11:40 +01:00
parent 78f3c2c37d
commit ad23caef33
1 changed files with 18 additions and 0 deletions
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18
ice40/pack.cc
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@ -733,6 +733,24 @@ static void pack_special(Context *ctx)
for (auto param : ci->params)
packed->params[param.first] = param.second;
const std::map<IdString, IdString> pos_map_name = {
{ctx->id("PLLOUT_SELECT"), ctx->id("PLLOUT_SELECT_A")},
{ctx->id("PLLOUT_SELECT_PORTA"), ctx->id("PLLOUT_SELECT_A")},
{ctx->id("PLLOUT_SELECT_PORTB"), ctx->id("PLLOUT_SELECT_B")},
};
const std::map<std::string, int> pos_map_val = {
{"GENCLK", 0},
{"GENCLK_HALF", 1},
{"SHIFTREG_90deg", 2},
{"SHIFTREG_0deg", 3},
};
for (auto param : ci->params)
if (pos_map_name.find(param.first) != pos_map_name.end()) {
if (pos_map_val.find(param.second) == pos_map_val.end())
log_error("Invalid PLL output selection '%s'\n", param.second.c_str());
packed->params[pos_map_name.at(param.first)] = std::to_string(pos_map_val.at(param.second));
}
auto feedback_path = packed->params[ctx->id("FEEDBACK_PATH")];
packed->params[ctx->id("FEEDBACK_PATH")] =
feedback_path == "DELAY"