riscv/sifive-blocks
1
0
Fork 0
Code Releases Activity

Use _chisel3 analog for MIG inout

Browse Source
This commit is contained in:
Henry Styles 2017-04-25 10:15:00 -07:00
parent ebd3ffa57e
commit b882d6da93
2 changed files with 17 additions and 27 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

23
src/main/scala/devices/xilinxvc707mig/XilinxVC707MIG.scala
View File

@ -2,28 +2,21 @@
package sifive.blocks.devices.xilinxvc707mig package sifive.blocks.devices.xilinxvc707mig
import Chisel._ import Chisel._
import chisel3.experimental.{Analog,attach}
import config._ import config._
import diplomacy._ import diplomacy._
import uncore.tilelink2._ import uncore.tilelink2._
import uncore.axi4._ import uncore.axi4._
import rocketchip._ import rocketchip._
import sifive.blocks.ip.xilinx.vc707mig.{VC707MIGUnidirectionalIOClocksReset, VC707MIGUnidirectionalIODDR, vc707mig} import sifive.blocks.ip.xilinx.vc707mig.{VC707MIGIOClocksReset, VC707MIGIODDR, vc707mig}
trait HasXilinxVC707MIGParameters { trait HasXilinxVC707MIGParameters {
} }
class XilinxVC707MIGPads extends Bundle with VC707MIGUnidirectionalIODDR { class XilinxVC707MIGPads extends Bundle with VC707MIGIODDR
val _inout_ddr3_dq = Bits(OUTPUT,64)
val _inout_ddr3_dqs_n = Bits(OUTPUT,8)
val _inout_ddr3_dqs_p = Bits(OUTPUT,8)
}
class XilinxVC707MIGIO extends Bundle with VC707MIGUnidirectionalIODDR class XilinxVC707MIGIO extends Bundle with VC707MIGIODDR
with VC707MIGUnidirectionalIOClocksReset { with VC707MIGIOClocksReset
val _inout_ddr3_dq = Bits(OUTPUT,64)
val _inout_ddr3_dqs_n = Bits(OUTPUT,8)
val _inout_ddr3_dqs_p = Bits(OUTPUT,8)
}
class XilinxVC707MIG(implicit p: Parameters) extends LazyModule with HasXilinxVC707MIGParameters { class XilinxVC707MIG(implicit p: Parameters) extends LazyModule with HasXilinxVC707MIGParameters {
val device = new MemoryDevice val device = new MemoryDevice
@ -58,9 +51,9 @@ class XilinxVC707MIG(implicit p: Parameters) extends LazyModule with HasXilinxVC
//pins to top level //pins to top level
//inouts //inouts
io.port._inout_ddr3_dq := blackbox.io.ddr3_dq attach(io.port.ddr3_dq,blackbox.io.ddr3_dq)
io.port._inout_ddr3_dqs_n := blackbox.io.ddr3_dqs_n attach(io.port.ddr3_dqs_n,blackbox.io.ddr3_dqs_n)
io.port._inout_ddr3_dqs_p := blackbox.io.ddr3_dqs_p attach(io.port.ddr3_dqs_p,blackbox.io.ddr3_dqs_p)
//outputs //outputs
io.port.ddr3_addr := blackbox.io.ddr3_addr io.port.ddr3_addr := blackbox.io.ddr3_addr

21
src/main/scala/ip/xilinx/vc707mig/vc707mig.scala
View File

@ -2,15 +2,14 @@
package sifive.blocks.ip.xilinx.vc707mig package sifive.blocks.ip.xilinx.vc707mig
import Chisel._ import Chisel._
import chisel3.experimental.{Analog,attach}
import config._ import config._
import junctions._ import junctions._
// IP VLNV: xilinx.com:customize_ip:vc707mig:1.0 // IP VLNV: xilinx.com:customize_ip:vc707mig:1.0
// Black Box // Black Box
// Signals named _exactly_ as per MIG generated verilog
trait VC707MIGUnidirectionalIODDR extends Bundle { trait VC707MIGIODDR extends Bundle {
//outputs
val ddr3_addr = Bits(OUTPUT,14) val ddr3_addr = Bits(OUTPUT,14)
val ddr3_ba = Bits(OUTPUT,3) val ddr3_ba = Bits(OUTPUT,3)
val ddr3_ras_n = Bool(OUTPUT) val ddr3_ras_n = Bool(OUTPUT)
@ -23,10 +22,14 @@ trait VC707MIGUnidirectionalIODDR extends Bundle {
val ddr3_cs_n = Bits(OUTPUT,1) val ddr3_cs_n = Bits(OUTPUT,1)
val ddr3_dm = Bits(OUTPUT,8) val ddr3_dm = Bits(OUTPUT,8)
val ddr3_odt = Bits(OUTPUT,1) val ddr3_odt = Bits(OUTPUT,1)
val ddr3_dq = Analog(64.W)
val ddr3_dqs_n = Analog(8.W)
val ddr3_dqs_p = Analog(8.W)
} }
//reused directly in io bundle for sifive.blocks.devices.xilinxvc707mig //reused directly in io bundle for sifive.blocks.devices.xilinxvc707mig
trait VC707MIGUnidirectionalIOClocksReset extends Bundle { trait VC707MIGIOClocksReset extends Bundle {
//inputs //inputs
//differential system clocks //differential system clocks
val sys_clk_n = Bool(INPUT) val sys_clk_n = Bool(INPUT)
@ -45,14 +48,8 @@ trait VC707MIGUnidirectionalIOClocksReset extends Bundle {
//turn off linter: blackbox name must match verilog module //turn off linter: blackbox name must match verilog module
class vc707mig(implicit val p:Parameters) extends BlackBox class vc707mig(implicit val p:Parameters) extends BlackBox
{ {
val io = new Bundle with VC707MIGUnidirectionalIODDR val io = new Bundle with VC707MIGIODDR
with VC707MIGUnidirectionalIOClocksReset { with VC707MIGIOClocksReset {
// bidirectional signals on blackbox interface
// defined here as an output so "__inout" signal name does not have to be used
// verilog does not check the
val ddr3_dq = Bits(OUTPUT,64)
val ddr3_dqs_n = Bits(OUTPUT,8)
val ddr3_dqs_p = Bits(OUTPUT,8)
// User interface signals // User interface signals
val app_sr_req = Bool(INPUT) val app_sr_req = Bool(INPUT)
val app_ref_req = Bool(INPUT) val app_ref_req = Bool(INPUT)