package sifive.blocks.devices.uart
import Chisel._
-import config._
-import diplomacy._
-import uncore.tilelink2._
-import rocketchip._
-
-import sifive.blocks.devices.gpio.{GPIOPin, GPIOOutputPinCtrl, GPIOInputPinCtrl}
+import freechips.rocketchip.config.Field
+import freechips.rocketchip.diplomacy.{LazyModule, LazyMultiIOModuleImp}
+import freechips.rocketchip.chip.HasSystemNetworks
+import freechips.rocketchip.tilelink.TLFragmenter
+import sifive.blocks.devices.pinctrl.{Pin, PinCtrl}
import sifive.blocks.util.ShiftRegisterInit
-trait PeripheryUART {
- this: TopNetwork {
- val uartConfigs: Seq[UARTConfig]
- } =>
- val uart = uartConfigs.zipWithIndex.map { case (c, i) =>
- val uart = LazyModule(new UART(c))
- uart.node := TLFragmenter(peripheryBusConfig.beatBytes, cacheBlockBytes)(peripheryBus.node)
+case object PeripheryUARTKey extends Field[Seq[UARTParams]]
+
+trait HasPeripheryUART extends HasSystemNetworks {
+ val uartParams = p(PeripheryUARTKey)
+ val uarts = uartParams map { params =>
+ val uart = LazyModule(new TLUART(peripheryBusBytes, params))
+ uart.node := TLFragmenter(peripheryBusBytes, cacheBlockBytes)(peripheryBus.node)
intBus.intnode := uart.intnode
uart
}
}
-trait PeripheryUARTBundle {
- this: { val uartConfigs: Seq[UARTConfig] } =>
- val uarts = Vec(uartConfigs.size, new UARTPortIO)
+trait HasPeripheryUARTBundle {
+ val uarts: Vec[UARTPortIO]
+
+ def tieoffUARTs(dummy: Int = 1) {
+ uarts.foreach { _.rxd := UInt(1) }
+ }
+
}
-trait PeripheryUARTModule {
- this: TopNetworkModule {
- val outer: PeripheryUART
- val io: PeripheryUARTBundle
- } =>
- (io.uarts zip outer.uart).foreach { case (io, device) =>
+trait HasPeripheryUARTModuleImp extends LazyMultiIOModuleImp with HasPeripheryUARTBundle {
+ val outer: HasPeripheryUART
+ val uarts = IO(Vec(outer.uartParams.size, new UARTPortIO))
+
+ (uarts zip outer.uarts).foreach { case (io, device) =>
io <> device.module.io.port
}
}
-class UARTPinsIO extends Bundle {
- val rxd = new GPIOPin
- val txd = new GPIOPin
-}
+class UARTPins(pingen: () => Pin) extends Bundle {
+ val rxd = pingen()
+ val txd = pingen()
-class UARTGPIOPort(syncStages: Int = 0) extends Module {
- val io = new Bundle{
- val uart = new UARTPortIO().flip()
- val pins = new UARTPinsIO
+ def fromUARTPort(uart: UARTPortIO, syncStages: Int = 0) {
+ txd.outputPin(uart.txd)
+ val rxd_t = rxd.inputPin()
+ uart.rxd := ShiftRegisterInit(rxd_t, syncStages, Bool(true))
}
-
- GPIOOutputPinCtrl(io.pins.txd, io.uart.txd)
- val rxd = GPIOInputPinCtrl(io.pins.rxd)
- io.uart.rxd := ShiftRegisterInit(rxd, syncStages, Bool(true))
}
+