luna_soc.gateware.core.spiflash package

Submodules

• luna_soc.gateware.core.spiflash.controller module
  • SPIController
    • SPIController.Cs
      • SPIController.Cs.select
    • SPIController.Data
    • SPIController.Phy
    • SPIController.Status
      • SPIController.Status.rx_ready
      • SPIController.Status.tx_ready
    • SPIController.elaborate()
• luna_soc.gateware.core.spiflash.mmap module
  • SPIFlashMemoryMap
    • SPIFlashMemoryMap.MMAP_DEFAULT_TIMEOUT
    • SPIFlashMemoryMap.OE_MASK
    • SPIFlashMemoryMap.elaborate()
    • SPIFlashMemoryMap.reverse_bytes()
• luna_soc.gateware.core.spiflash.phy module
  • ECP5ConfigurationFlashInterface
    • ECP5ConfigurationFlashInterface.__init__()
    • ECP5ConfigurationFlashInterface.elaborate()
  • SPIClockGenerator
    • SPIClockGenerator.elaborate()
  • SPIPHYController
    • SPIPHYController.elaborate()
• luna_soc.gateware.core.spiflash.port module
  • SPIControlPort
  • SPIControlPortCDC
    • SPIControlPortCDC.elaborate()
  • SPIControlPortCrossbar
    • SPIControlPortCrossbar.elaborate()
    • SPIControlPortCrossbar.get_port()
  • StreamCore2PHY
    • StreamCore2PHY.create()
    • StreamCore2PHY.data_width
  • StreamCore2PHYInterface
    • StreamCore2PHYInterface.payload
  • StreamPHY2Core
    • StreamPHY2Core.create()
    • StreamPHY2Core.data_width
  • StreamPHY2CoreInterface
    • StreamPHY2CoreInterface.payload
• luna_soc.gateware.core.spiflash.utils module
  • RoundRobin
    • RoundRobin.elaborate()
  • WaitTimer
    • WaitTimer.elaborate()

Module contents

class luna_soc.gateware.core.spiflash.ECP5ConfigurationFlashInterface(*args, src_loc_at=0, **kwargs)

Bases: Elaboratable

Gateware that creates a connection to an MSPI configuration flash.

Automatically uses appropriate platform resources; this abstracts away details necessary to e.g. drive the MCLK lines on an ECP5, which has special handling.

__init__(*, bus)

Params: bus – The SPI bus object to extend.

elaborate(platform)

class luna_soc.gateware.core.spiflash.Peripheral(*args, src_loc_at=0, **kwargs)

Bases: Component

SPI Flash peripheral main module.

This class provides a wrapper that can instantiate both SPIController and SPIFlashMemoryMap and connect them to the PHY.

Both options share access to the PHY using a crossbar. Also, performs CDC if a different clock is used in the PHY.

elaborate(platform)

class luna_soc.gateware.core.spiflash.PinSignature

Bases: Signature

class luna_soc.gateware.core.spiflash.SPIPHYController(*args, src_loc_at=0, **kwargs)

Bases: Component

Provides a generic PHY that can be used by a SPI flash controller.

It supports single/dual/quad/octal output reads from the flash chips.

elaborate(platform)