SAM4E-EK: Add an EMAC driver. Initial commit is just a quick port of the SAMA5D3 EMAC driver
This commit is contained in:
Gregory Nutt
parent
907d273c4a
commit
fe9460d314
@ -349,6 +349,8 @@ config SAM34_EMAC
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bool "Ethernet MAC (EMAC)"
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default n
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depends on ARCH_CHIP_SAM3X || ARCH_CHIP_SAM3A || ARCH_CHIP_SAM4E
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select NETDEVICES
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select ARCH_HAVE_PHY
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config SAM34_FREQM
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bool "Frequency Meter (FREQM)"
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@ -688,7 +690,7 @@ config SAM34_RC32K
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endmenu # AT91SAM3/4 Clock Configuration
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endif # ARCH_CHIP_SAM4L
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menu "External Memory Configuration"
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menu "AT91SAM3/4 External Memory Configuration"
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config ARCH_HAVE_EXTNAND
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bool
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@ -830,7 +832,7 @@ config SAM34_EXTSRAM1HEAP
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endif # SAM34_EXTSRAM1
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endmenu # External Memory Configuration
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comment "AT91SAM3/4 GPIO Interrupt Configuration"
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menu "AT91SAM3/4 GPIO Interrupt Configuration"
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config GPIO_IRQ
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bool "GPIO pin interrupts"
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@ -867,6 +869,218 @@ config GPIOF_IRQ
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depends on ARCH_CHIP_SAM3X || ARCH_CHIP_SAM3A
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endif # GPIO_IRQ
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endmenu # AT91SAM3/4 GPIO Interrupt Configuration
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if SAM34_EMAC
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menu "AT91SAM3/4 EMAC device driver options"
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config SAM34_EMAC_NRXBUFFERS
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int "Number of RX buffers"
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default 16
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---help---
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EMAC buffer memory is segmented into 128 byte units (not
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configurable). This setting provides the number of such 128 byte
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units used for reception. This is also equal to the number of RX
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descriptors that will be allocated The selected value must be an
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even power of 2.
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config SAM34_EMAC_NTXBUFFERS
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int "Number of TX buffers"
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default 8
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---help---
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EMAC buffer memory is segmented into full Ethernet packets (size
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NET_BUFSIZE bytes). This setting provides the number of such packets
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that can be in flight. This is also equal to the number of TX
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descriptors that will be allocated.
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config SAM34_EMAC_PREALLOCATE
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bool "Preallocate buffers"
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default n
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---help---
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Buffer an descriptor many may either be allocated from the memory
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pool or pre-allocated to lie in .bss. This options selected pre-
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allocated buffer memory.
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config SAM34_EMAC_NBC
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bool "Disable Broadcast"
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default n
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---help---
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Select to disable receipt of broadcast packets.
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config SAM34_EMAC_PHYADDR
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int "PHY address"
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default 1
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---help---
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The 5-bit address of the PHY on the board. Default: 1
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config SAM34_EMAC_PHYINIT
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bool "Board-specific PHY Initialization"
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default n
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---help---
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Some boards require specialized initialization of the PHY before it can be used.
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This may include such things as configuring GPIOs, resetting the PHY, etc. If
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SAM34_EMAC_PHYINIT is defined in the configuration then the board specific logic must
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provide sam_phyinitialize(); The SAM34 EMAC driver will call this function
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one time before it first uses the PHY.
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choice
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prompt "PHY interface"
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default SAM34_EMAC_MII
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config SAM34_EMAC_MII
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bool "MII"
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---help---
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Support Ethernet MII interface (vs RMII).
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config SAM34_EMAC_RMII
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bool "RMII"
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depends on !ARCH_CHIP_SAM4E
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---help---
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Support Ethernet RMII interface (vs MII).
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endchoice # PHY interface
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config SAM34_EMAC_CLAUSE45
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bool "Clause 45 MII"
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depends on SAM34_EMAC_MII
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---help---
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MDIO was originally defined in Clause 22 of IEEE RFC802.3. In the
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original specification, a single MDIO interface is able to access up
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to 32 registers in 32 different PHY devices. To meet the needs the
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expanding needs of 10-Gigabit Ethernet devices, Clause 45 of the
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802.3ae specification provided the following additions to MDIO:
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- Ability to access 65,536 registers in 32 different devices on
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32 different ports
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- Additional OP-code and ST-code for Indirect Address register
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access for 10 Gigabit Ethernet
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- End-to-end fault signaling
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- Multiple loopback points
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- Low voltage electrical specification
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By default, Clause 22 PHYs will be supported unless this option is
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selected.
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config SAM34_EMAC_AUTONEG
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bool "Use autonegotiation"
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default y
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---help---
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Use PHY autonegotiation to determine speed and mode
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config SAM34_EMAC_ETHFD
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bool "Full duplex"
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default n
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depends on !SAM34_EMAC_AUTONEG
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---help---
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If SAM34_EMAC_AUTONEG is not defined, then this may be defined to select full duplex
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mode. Default: half-duplex
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config SAM34_EMAC_ETH100MBPS
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bool "100 Mbps"
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default n
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depends on !SAM34_EMAC_AUTONEG
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---help---
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If SAM34_EMAC_AUTONEG is not defined, then this may be defined to select 100 MBps
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speed. Default: 10 Mbps
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config SAM34_EMAC_PHYSR
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int "PHY Status Register Address (decimal)"
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depends on SAM34_EMAC_AUTONEG
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---help---
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This must be provided if SAM34_EMAC_AUTONEG is defined. The PHY status register
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address may diff from PHY to PHY. This configuration sets the address of
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the PHY status register.
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config SAM34_EMAC_PHYSR_ALTCONFIG
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bool "PHY Status Alternate Bit Layout"
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default n
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depends on SAM34_EMAC_AUTONEG
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---help---
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Different PHYs present speed and mode information in different ways. Some
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will present separate information for speed and mode (this is the default).
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Those PHYs, for example, may provide a 10/100 Mbps indication and a separate
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full/half duplex indication. This options selects an alternative representation
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where speed and mode information are combined. This might mean, for example,
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separate bits for 10HD, 100HD, 10FD and 100FD.
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config SAM34_EMAC_PHYSR_SPEED
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hex "PHY Speed Mask"
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depends on SAM34_EMAC_AUTONEG && !SAM34_EMAC_PHYSR_ALTCONFIG
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---help---
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This must be provided if SAM34_EMAC_AUTONEG is defined. This provides bit mask
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for isolating the 10 or 100MBps speed indication.
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config SAM34_EMAC_PHYSR_100MBPS
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hex "PHY 100Mbps Speed Value"
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depends on SAM34_EMAC_AUTONEG && !SAM34_EMAC_PHYSR_ALTCONFIG
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---help---
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This must be provided if SAM34_EMAC_AUTONEG is defined. This provides the value
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of the speed bit(s) indicating 100MBps speed.
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config SAM34_EMAC_PHYSR_MODE
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hex "PHY Mode Mask"
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depends on SAM34_EMAC_AUTONEG && !SAM34_EMAC_PHYSR_ALTCONFIG
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---help---
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This must be provided if SAM34_EMAC_AUTONEG is defined. This provide bit mask
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for isolating the full or half duplex mode bits.
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config SAM34_EMAC_PHYSR_FULLDUPLEX
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hex "PHY Full Duplex Mode Value"
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depends on SAM34_EMAC_AUTONEG && !SAM34_EMAC_PHYSR_ALTCONFIG
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---help---
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This must be provided if SAM34_EMAC_AUTONEG is defined. This provides the
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value of the mode bits indicating full duplex mode.
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config SAM34_EMAC_PHYSR_ALTMODE
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hex "PHY Mode Mask"
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depends on SAM34_EMAC_AUTONEG && SAM34_EMAC_PHYSR_ALTCONFIG
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---help---
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This must be provided if SAM34_EMAC_AUTONEG is defined. This provide bit mask
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for isolating the speed and full/half duplex mode bits.
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config SAM34_EMAC_PHYSR_10HD
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hex "10MBase-T Half Duplex Value"
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depends on SAM34_EMAC_AUTONEG && SAM34_EMAC_PHYSR_ALTCONFIG
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---help---
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This must be provided if SAM34_EMAC_AUTONEG is defined. This is the value
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under the bit mask that represents the 10Mbps, half duplex setting.
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config SAM34_EMAC_PHYSR_100HD
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hex "100Base-T Half Duplex Value"
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depends on SAM34_EMAC_AUTONEG && SAM34_EMAC_PHYSR_ALTCONFIG
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---help---
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This must be provided if SAM34_EMAC_AUTONEG is defined. This is the value
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under the bit mask that represents the 100Mbps, half duplex setting.
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config SAM34_EMAC_PHYSR_10FD
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hex "10Base-T Full Duplex Value"
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depends on SAM34_EMAC_AUTONEG && SAM34_EMAC_PHYSR_ALTCONFIG
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---help---
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This must be provided if SAM34_EMAC_AUTONEG is defined. This is the value
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under the bit mask that represents the 10Mbps, full duplex setting.
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config SAM34_EMAC_PHYSR_100FD
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hex "100Base-T Full Duplex Value"
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depends on SAM34_EMAC_AUTONEG && SAM34_EMAC_PHYSR_ALTCONFIG
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---help---
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This must be provided if SAM34_EMAC_AUTONEG is defined. This is the value
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under the bit mask that represents the 100Mbps, full duplex setting.
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config SAM34_EMAC_REGDEBUG
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bool "Register-Level Debug"
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default n
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depends on DEBUG
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---help---
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Enable very low-level register access debug. Depends on DEBUG.
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config SAM34_EMAC_ISETH0
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bool
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default y if !SAM34_EMAC || !SAM34_GMAC_ISETH0
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default n if SAM34_EMAC && SAM34_GMAC_ISETH0
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endmenu # EMAC device driver options
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endif # SAM34_EMAC
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if SAM34_WDT
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comment "AT91SAM3/4 Watchdog Configuration"|
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@ -104,6 +104,10 @@ ifeq ($(CONFIG_SAM34_PDCA),y)
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CHIP_CSRCS += sam4l_pdca.c
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endif
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ifeq ($(CONFIG_SAM34_EMAC),y)
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CHIP_CSRCS += sam_emac.c
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endif
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ifeq ($(CONFIG_SAM34_HSMCI),y)
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CHIP_CSRCS += sam_hsmci.c
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endif
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@ -52,8 +52,8 @@
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#define sam_enableperiph0(s) putreg32((1 << (s)), SAM_PMC_PCER0)
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#define sam_enableperiph1(s) putreg32((1 << ((s) - 32)), SAM_PMC_PCER1)
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#define sam_disableperiph0(s) putreg32((1 << (s)), SAM_PMC_PDER0)
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#define sam_disableperiph1(s) putreg32((1 << ((s) - 32)), SAM_PMC_PDER1)
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#define sam_disableperiph0(s) putreg32((1 << (s)), SAM_PMC_PCDR0)
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#define sam_disableperiph1(s) putreg32((1 << ((s) - 32)), SAM_PMC_PCDR1)
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#define sam_supc_enableclk() sam_enableperiph0(SAM_PID_SUPC)
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#define sam_rstc_enableclk() sam_enableperiph0(SAM_PID_RSTC)
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@ -125,5 +125,12 @@ void sam_cmcc_invalidateall(void);
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#endif
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#endif /* __ASSEMBLY__ */
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#else /* CONFIG_SAM34_CMCC */
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/* Stubs so that we don't have to put condition compilation in driver source */
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# define sam_cmcc_invalidate(start, end)
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# define sam_cmcc_invalidateall()
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#endif /* CONFIG_SAM34_CMCC */
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#endif /* __ARCH_ARM_SRC_SAM34_SAM_CMCC_H */
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2917
arch/arm/src/sam34/sam_emac.c
Normal file
2917
arch/arm/src/sam34/sam_emac.c
Normal file
File diff suppressed because it is too large
Load Diff
120
arch/arm/src/sam34/sam_emac.h
Normal file
120
arch/arm/src/sam34/sam_emac.h
Normal file
@ -0,0 +1,120 @@
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/************************************************************************************
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* arch/arm/src/sam34/sam_ethernet.h
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*
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* Copyright (C) 2014 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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************************************************************************************/
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#ifndef __ARCH_ARM_SRC_SAM34_SAM_ETHERNET_H
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#define __ARCH_ARM_SRC_SAM34_SAM_ETHERNET_H
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/************************************************************************************
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* Included Files
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************************************************************************************/
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#include <nuttx/config.h>
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#include "chip.h"
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#include "chip/sam_emac.h"
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#ifdef CONFIG_SAM34_EMAC
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/************************************************************************************
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* Pre-processor Definitions
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************************************************************************************/
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/************************************************************************************
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* Public Functions
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************************************************************************************/
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#ifndef __ASSEMBLY__
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#undef EXTERN
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#if defined(__cplusplus)
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#define EXTERN extern "C"
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extern "C"
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{
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#else
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#define EXTERN extern
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#endif
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/****************************************************************************
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* Function: up_netinitialize
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*
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* Description:
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* Initialize the EMAC driver. Also prototyped in up_internal.h.
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*
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* Input Parameters:
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* None
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*
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* Returned Value:
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* OK on success; Negated errno on failure.
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*
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* Assumptions:
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* Called very early in the initialization sequence.
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*
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****************************************************************************/
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void up_netinitialize(void);
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/************************************************************************************
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* Function: sam_phy_boardinitialize
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*
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* Description:
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* Some boards require specialized initialization of the PHY before it can be used.
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* This may include such things as configuring GPIOs, resetting the PHY, etc. If
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* CONFIG_SAM34_PHYINIT is defined in the configuration then the board specific
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* logic must provide sam_phyinitialize(); The SAM34 Ethernet driver will call
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* this function one time before it first uses the PHY.
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*
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* Parameters:
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* intf - Always zero for now.
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*
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* Returned Value:
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* OK on success; Negated errno on failure.
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*
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* Assumptions:
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*
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************************************************************************************/
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#ifdef CONFIG_SAM34_PHYINIT
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int sam_phy_boardinitialize(int intf);
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#endif
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#undef EXTERN
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#if defined(__cplusplus)
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}
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#endif
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#endif /* __ASSEMBLY__ */
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#endif /* CONFIG_SAM34_EMAC */
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#endif /* __ARCH_ARM_SRC_SAM34_SAM_ETHERNET_H */
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Block a user