rom: Memory.MappedMemory @ sysbus 0x00000000
    size: 0x0000b000

sram: Memory.MappedMemory @ sysbus 0x01000000
    size: 0x00002000

main_ram: Memory.MappedMemory @ sysbus 0x40000000
    size: 0x10000000

uart: UART.LiteX_UART @ sysbus 0x82002000
    -> cpu@0

eth: Network.LiteX_Ethernet_CSR32 @ {
        sysbus 0x82004800;

        sysbus new Bus.BusMultiRegistration { address: 0x80000000; size: 0x2000; region: "buffer" };

        sysbus new Bus.BusMultiRegistration { address: 0x82004000; size: 0x800; region: "phy" }
    }
    -> cpu@2

phy: Network.EthernetPhysicalLayer @ eth 0
    VendorSpecific1: 0x4400 // MDIO status: 100Mbps + link up 

spi: SPI.LiteX_SPI_Flash @ {
    sysbus 0x60005000;
    sysbus 0xe0005000
}

flash: SPI.Micron_MT25Q @ spi
    underlyingMemory: flash_mem

flash_mem: Memory.MappedMemory @ {
        sysbus 0x20000000;
        sysbus 0xA0000000 // shadow
    }
    size: 0x02000000

cpu: CPU.VexRiscv @ sysbus
    cpuType: "rv32imac_zicsr"
    privilegedArchitecture: PrivilegedArchitecture.Priv1_10

timer0: Timers.LiteX_Timer_CSR32 @ sysbus 0x82002800
    frequency: 100000000
    -> cpu@1

cas: GPIOPort.LiteX_ControlAndStatus @ {
        sysbus 0x60006800;
        sysbus 0xe0006800 // shadow
    }

    0 -> led0@0
    1 -> led1@0
    2 -> led2@0
    3 -> led3@0

// leds are in range 0-31
led0: Miscellaneous.LED @ cas 0
led1: Miscellaneous.LED @ cas 1
led2: Miscellaneous.LED @ cas 2
led3: Miscellaneous.LED @ cas 3

// switches are in range 32-63
switch0: Miscellaneous.Button @ cas 32
    -> cas@32
switch1: Miscellaneous.Button @ cas 33
    -> cas@33
switch2: Miscellaneous.Button @ cas 34
    -> cas@34
switch3: Miscellaneous.Button @ cas 35
    -> cas@35

// buttons are in range 64-95
button0: Miscellaneous.Button @ cas 64
    -> cas@64
button1: Miscellaneous.Button @ cas 65
    -> cas@65
button2: Miscellaneous.Button @ cas 66
    -> cas@66
button3: Miscellaneous.Button @ cas 67
    -> cas@67

sysbus:
    init:
        Tag <0x82000000 0x1000> "CSR_CTRL_BASE"
        Tag <0x82001000 0x0800> "CSR_IDENTIFIER_MEM_BASE"
        Tag <0x82001800 0x0200> "CSR_UART_PHY_BASE"
        Tag <0x82002000 0x0800> "CSR_UART_BASE"
        Tag <0x82002800 0x0200> "CSR_TIMER0_BASE"
        Tag <0x82003000 0x0800> "CSR_DDRPHY_BASE"
        Tag <0x82003800 0x0800> "CSR_SDRAM_BASE"
        Tag <0x82004000 0x0800> "CSR_ETHPHY_BASE"
        Tag <0x82004800 0x0800> "CSR_ETHMAC_BASE"
        Tag <0x82005000 0x0100> "CSR_LEDS_BASE"