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ecp5: DCU clocking fixes

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Signed-off-by: David Shah <dave@ds0.me>
This commit is contained in:
David Shah 2018-11-11 10:22:57 +00:00
parent 0eba7d9789
commit 084f9cf63f
1 changed files with 8 additions and 2 deletions
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10
ecp5/globals.cc
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@ -55,6 +55,9 @@ class Ecp5GlobalRouter
{
if (user.cell->type == id_TRELLIS_SLICE && (user.port == id_CLK || user.port == id_WCK))
return true;
if (user.cell->type == id_DCUA && (user.port == id_CH0_FF_RXI_CLK || user.port == id_CH1_FF_RXI_CLK ||
user.port == id_CH0_FF_TXI_CLK || user.port == id_CH1_FF_TXI_CLK))
return true;
return false;
}
@ -65,8 +68,11 @@ class Ecp5GlobalRouter
NetInfo *ni = net.second.get();
clockCount[ni->name] = 0;
for (const auto &user : ni->users) {
if (is_clock_port(user))
if (is_clock_port(user)) {
clockCount[ni->name]++;
if (user.cell->type == id_DCUA)
clockCount[ni->name] += 100;
}
}
// log_info("clkcount %s: %d\n", ni->name.c_str(ctx),clockCount[ni->name]);
}
@ -379,7 +385,7 @@ class Ecp5GlobalRouter
for (auto user : net->users) {
if (user.port == id_CLKFB) {
keep_users.push_back(user);
} else if (net->driver.cell->type == id_EXTREFB && user.cell->type == id_DCCA) {
} else if (net->driver.cell->type == id_EXTREFB && user.cell->type == id_DCUA) {
keep_users.push_back(user);
} else {
glbnet->users.push_back(user);