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VC707 : use IO bundles directly from the PCIe and MIG devices instead of redeclaring signals

This commit is contained in:
Henry Styles 2017-10-23 16:53:59 -07:00
parent d8e50c7646
commit 61b167e8d9
2 changed files with 13 additions and 48 deletions
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12
src/main/scala/devices/xilinx/xilinxvc707pciex1/XilinxVC707PCIeX1.scala
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@ -10,14 +10,20 @@ import freechips.rocketchip.tilelink._
import sifive.fpgashells.ip.xilinx.vc707axi_to_pcie_x1.{VC707AXIToPCIeX1, VC707AXIToPCIeX1IOClocksReset, VC707AXIToPCIeX1IOSerial}
import sifive.fpgashells.ip.xilinx.ibufds_gte2.IBUFDS_GTE2
class XilinxVC707PCIeX1Pads extends Bundle with VC707AXIToPCIeX1IOSerial
trait VC707AXIToPCIeRefClk extends Bundle{
val REFCLK_rxp = Bool(INPUT)
val REFCLK_rxn = Bool(INPUT)
}
class XilinxVC707PCIeX1Pads extends Bundle
with VC707AXIToPCIeX1IOSerial
with VC707AXIToPCIeRefClk
class XilinxVC707PCIeX1IO extends Bundle
with VC707AXIToPCIeRefClk
with VC707AXIToPCIeX1IOSerial
with VC707AXIToPCIeX1IOClocksReset {
val axi_ctl_aresetn = Bool(INPUT)
val REFCLK_rxp = Bool(INPUT)
val REFCLK_rxn = Bool(INPUT)
}
class XilinxVC707PCIeX1(implicit p: Parameters) extends LazyModule {

49
src/main/scala/shell/xilinx/VC707Shell.scala
View File

@ -35,21 +35,7 @@ abstract class VC707Shell(implicit val p: Parameters) extends RawModule {
val reset = IO(Input(Bool()))
// DDR SDRAM
val ddr3_addr = IO(Output(UInt(16.W)))
val ddr3_ba = IO(Output(UInt(3.W)))
val ddr3_cas_n = IO(Output(Bool()))
val ddr3_ck_p = IO(Output(Bool()))
val ddr3_ck_n = IO(Output(Bool()))
val ddr3_cke = IO(Output(Bool()))
val ddr3_cs_n = IO(Output(Bool()))
val ddr3_dm = IO(Output(UInt(8.W)))
val ddr3_dq = IO(Analog(64.W))
val ddr3_dqs_n = IO(Analog(8.W))
val ddr3_dqs_p = IO(Analog(8.W))
val ddr3_odt = IO(Output(Bool()))
val ddr3_ras_n = IO(Output(Bool()))
val ddr3_reset_n = IO(Output(Bool()))
val ddr3_we_n = IO(Output(Bool()))
val ddr = IO(new XilinxVC707MIGPads(p(MemoryXilinxDDRKey)))
// LED
val led = IO(Vec(8, Output(Bool())))
@ -72,12 +58,7 @@ abstract class VC707Shell(implicit val p: Parameters) extends RawModule {
val jtag_TDO = IO(Output(Bool()))
// PCIe
val pci_exp_txp = IO(Output(Bool()))
val pci_exp_txn = IO(Output(Bool()))
val pci_exp_rxp = IO(Input(Bool()))
val pci_exp_rxn = IO(Input(Bool()))
val pci_exp_refclk_rxp = IO(Input(Bool()))
val pci_exp_refclk_rxn = IO(Input(Bool()))
val pcie = IO(new XilinxVC707PCIeX1Pads)
//-----------------------------------------------------------------------
// Wire declrations
@ -257,23 +238,7 @@ abstract class VC707Shell(implicit val p: Parameters) extends RawModule {
dut.xilinxvc707mig.aresetn := mig_resetn
dut.xilinxvc707mig.sys_rst := sys_reset
// Outputs
ddr3_addr := dut.xilinxvc707mig.ddr3_addr
ddr3_ba := dut.xilinxvc707mig.ddr3_ba
ddr3_ras_n := dut.xilinxvc707mig.ddr3_ras_n
ddr3_cas_n := dut.xilinxvc707mig.ddr3_cas_n
ddr3_we_n := dut.xilinxvc707mig.ddr3_we_n
ddr3_reset_n := dut.xilinxvc707mig.ddr3_reset_n
ddr3_ck_p := dut.xilinxvc707mig.ddr3_ck_p
ddr3_ck_n := dut.xilinxvc707mig.ddr3_ck_n
ddr3_cke := dut.xilinxvc707mig.ddr3_cke
ddr3_cs_n := dut.xilinxvc707mig.ddr3_cs_n
ddr3_dm := dut.xilinxvc707mig.ddr3_dm
ddr3_odt := dut.xilinxvc707mig.ddr3_odt
attach(ddr3_dq, dut.xilinxvc707mig.ddr3_dq)
attach(ddr3_dqs_n, dut.xilinxvc707mig.ddr3_dqs_n)
attach(ddr3_dqs_p, dut.xilinxvc707mig.ddr3_dqs_p)
ddr <> dut.xilinxvc707mig
}
//---------------------------------------------------------------------
@ -287,14 +252,8 @@ abstract class VC707Shell(implicit val p: Parameters) extends RawModule {
pcie_cfg_clock := dut.xilinxvc707pcie.axi_ctl_aclk_out
mmcm_lock_pcie := dut.xilinxvc707pcie.mmcm_lock
dut.xilinxvc707pcie.axi_ctl_aresetn := pcie_dat_resetn
dut.xilinxvc707pcie.REFCLK_rxp := pci_exp_refclk_rxp
dut.xilinxvc707pcie.REFCLK_rxn := pci_exp_refclk_rxn
// PCIeX1 connections
pci_exp_txp := dut.xilinxvc707pcie.pci_exp_txp
pci_exp_txn := dut.xilinxvc707pcie.pci_exp_txn
dut.xilinxvc707pcie.pci_exp_rxp := pci_exp_rxp
dut.xilinxvc707pcie.pci_exp_rxn := pci_exp_rxn
pcie <> dut.xilinxvc707pcie
}
}