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Merge pull request #849 from galibert/cyclonev-oscillator

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mistral: Add internal oscillator support
This commit is contained in:
gatecat 2021-10-17 15:42:30 +01:00 committed by GitHub
commit 6bd1ab41b7
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4 changed files with 15 additions and 3 deletions
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2
mistral/arch.cc
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@ -77,6 +77,8 @@ Arch::Arch(ArchArgs args)
for (auto cmuxh_pos : cyclonev->cmuxh_get_pos())
create_clkbuf(CycloneV::pos2x(cmuxh_pos), CycloneV::pos2y(cmuxh_pos));
create_control(CycloneV::pos2x(cyclonev->ctrl_get_pos()[0]), CycloneV::pos2y(cyclonev->ctrl_get_pos()[0]));
auto hps_pos = cyclonev->hps_get_pos();
if (!hps_pos.empty()) {
create_hps_mpu_general_purpose(CycloneV::pos2x(hps_pos[CycloneV::I_HPS_MPU_GENERAL_PURPOSE]), CycloneV::pos2y(hps_pos[CycloneV::I_HPS_MPU_GENERAL_PURPOSE]));

7
mistral/arch.h
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@ -466,9 +466,10 @@ struct Arch : BaseArch<ArchRanges>
return WireId(cyclonev->pnode_to_rnode(CycloneV::pnode(bt, x, y, port, bi, pi)));
}
void create_lab(int x, int y, bool is_mlab); // lab.cc
void create_gpio(int x, int y); // io.cc
void create_clkbuf(int x, int y); // globals.cc
void create_lab(int x, int y, bool is_mlab); // lab.cc
void create_gpio(int x, int y); // io.cc
void create_clkbuf(int x, int y); // globals.cc
void create_control(int x, int y); // globals.cc
void create_hps_mpu_general_purpose(int x, int y); // globals.cc
// -------------------------------------------------

1
mistral/constids.inc
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@ -95,4 +95,5 @@ X(B1DATA)
X(WCLK_INV)
X(WE_INV)
X(cyclonev_oscillator)
X(cyclonev_hps_interface_mpu_general_purpose)

8
mistral/globals.cc
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@ -52,4 +52,12 @@ void Arch::create_hps_mpu_general_purpose(int x, int y)
}
}
void Arch::create_control(int x, int y)
{
BelId oscillator_bel = add_bel(x, y, id_cyclonev_oscillator, id_cyclonev_oscillator);
add_bel_pin(oscillator_bel, id("oscena"), PORT_IN, get_port(CycloneV::CTRL, x, y, -1, CycloneV::OSC_ENA, -1));
add_bel_pin(oscillator_bel, id("clkout"), PORT_OUT, get_port(CycloneV::CTRL, x, y, -1, CycloneV::CLK_OUT, -1));
add_bel_pin(oscillator_bel, id("clkout1"), PORT_OUT, get_port(CycloneV::CTRL, x, y, -1, CycloneV::CLK_OUT1, -1));
}
NEXTPNR_NAMESPACE_END