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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
+