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devices: create periphery keys for all devices

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Standardize how they are connected to the periphery bus
This commit is contained in:
Wesley W. Terpstra
2017-02-22 18:42:47 -08:00
committed by Henry Cook
parent 03be9aba67
commit baccd5ada2
23 changed files with 277 additions and 295 deletions
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32
src/main/scala/devices/gpio/GPIO.scala
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@ -2,19 +2,12 @@
package sifive.blocks.devices.gpio
import Chisel._
import config._
import config.Parameters
import regmapper._
import uncore.tilelink2._
import rocketchip.PeripheryBusConfig
import util.AsyncResetRegVec
case class GPIOConfig(address: BigInt, width: Int)
trait HasGPIOParameters {
implicit val p: Parameters
val params: GPIOConfig
val c = params
}
case class GPIOParams(address: BigInt, width: Int)
// YAGNI: Make the PUE, DS, and
// these also optionally HW controllable.
@ -100,7 +93,7 @@ class GPIOPin extends Bundle {
// level, and we have to do the pinmux
// outside of RocketChipTop.
class GPIOPortIO(c: GPIOConfig) extends Bundle {
class GPIOPortIO(c: GPIOParams) extends Bundle {
val pins = Vec(c.width, new GPIOPin)
val iof_0 = Vec(c.width, new GPIOPinIOF).flip
val iof_1 = Vec(c.width, new GPIOPinIOF).flip
@ -108,12 +101,15 @@ class GPIOPortIO(c: GPIOConfig) extends Bundle {
// It would be better if the IOF were here and
// we could do the pinmux inside.
trait GPIOBundle extends Bundle with HasGPIOParameters {
val port = new GPIOPortIO(c)
trait HasGPIOBundleContents extends Bundle {
val params: GPIOParams
val port = new GPIOPortIO(params)
}
trait GPIOModule extends Module with HasGPIOParameters with HasRegMap {
val io: GPIOBundle
trait HasGPIOModuleContents extends Module with HasRegMap {
val io: HasGPIOBundleContents
val params: GPIOParams
val c = params
//--------------------------------------------------
// CSR Declarations
@ -289,7 +285,7 @@ object GPIOInputPinCtrl {
}
// Magic TL2 Incantation to create a TL2 Slave
class TLGPIO(c: GPIOConfig)(implicit p: Parameters)
extends TLRegisterRouter(c.address, interrupts = c.width, beatBytes = p(PeripheryBusConfig).beatBytes)(
new TLRegBundle(c, _) with GPIOBundle)(
new TLRegModule(c, _, _) with GPIOModule)
class TLGPIO(w: Int, c: GPIOParams)(implicit p: Parameters)
extends TLRegisterRouter(c.address, interrupts = c.width, beatBytes = w)(
new TLRegBundle(c, _) with HasGPIOBundleContents)(
new TLRegModule(c, _, _) with HasGPIOModuleContents)