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config IBM_EMAC
        tristate "PowerPC 4xx on-chip Ethernet support"
        depends on 4xx && !PPC_MERGE
        help
          This driver supports the PowerPC 4xx EMAC family of on-chip
          Ethernet controllers.

config IBM_EMAC_RXB
        int "Number of receive buffers"
        depends on IBM_EMAC
        default "128"

config IBM_EMAC_TXB
        int "Number of transmit buffers"
        depends on IBM_EMAC
        default "64"

config IBM_EMAC_POLL_WEIGHT
        int "MAL NAPI polling weight"
        depends on IBM_EMAC
        default "32"

config IBM_EMAC_RX_COPY_THRESHOLD
        int "RX skb copy threshold (bytes)"
        depends on IBM_EMAC
        default "256"

config IBM_EMAC_RX_SKB_HEADROOM
        int "Additional RX skb headroom (bytes)"
        depends on IBM_EMAC
        default "0"
        help
          Additional receive skb headroom. Note, that driver
          will always reserve at least 2 bytes to make IP header
          aligned, so usually there is no need to add any additional
          headroom.

          If unsure, set to 0.

config IBM_EMAC_PHY_RX_CLK_FIX
        bool "PHY Rx clock workaround"
        depends on IBM_EMAC && (405EP || 440GX || 440EP || 440GR)
        help
          Enable this if EMAC attached to a PHY which doesn't generate
          RX clock if there is no link, if this is the case, you will
          see "TX disable timeout" or "RX disable timeout" in the system
          log.

          If unsure, say N.

config IBM_EMAC_DEBUG
        bool "Debugging"
        depends on IBM_EMAC
        default n

config IBM_EMAC_ZMII
        bool
        depends on IBM_EMAC && (NP405H || NP405L || 44x)
        default y

config IBM_EMAC_RGMII
        bool
        depends on IBM_EMAC && 440GX
        default y

config IBM_EMAC_TAH
        bool
        depends on IBM_EMAC && 440GX
        default y