3  * Xilinx Axi Ethernet device driver
13  * This is a driver for the Xilinx Axi Ethernet which is used in the Virtex6
17  *  - Add Axi Fifo support.
18  *  - Factor out Axi DMA code into separate driver.
51 #define DRIVER_DESCRIPTION	"Xilinx Axi Ethernet driver"
58 	{ .compatible = "xlnx,axi-ethernet-1.00.a", },
59 	{ .compatible = "xlnx,axi-ethernet-1.01.a", },
60 	{ .compatible = "xlnx,axi-ethernet-2.01.a", },
66 /* Option table for setting up Axi Ethernet hardware options */
122  * axienet_dma_in32 - Memory mapped Axi DMA register read
124  * @reg:	Address offset from the base address of the Axi DMA core
126  * Return: The contents of the Axi DMA register
128  * This function returns the contents of the corresponding Axi DMA register.
136  * axienet_dma_out32 - Memory mapped Axi DMA register write.
138  * @reg:	Address offset from the base address of the Axi DMA core
139  * @value:	Value to be written into the Axi DMA register
141  * This function writes the desired value into the corresponding Axi DMA
183  * axienet_dma_bd_init. axienet_dma_bd_release is called when Axi Ethernet
229  * axienet_dma_bd_init - Setup buffer descriptor rings for Axi DMA
236  * and is called when Axi Ethernet driver reset is called.
324 	/* Populate the tail pointer and bring the Rx Axi DMA engine out of  in axienet_dma_bd_init()
354  * This function is called to initialize the MAC address of the Axi Ethernet
387  * This function is called to initialize the MAC address of the Axi Ethernet
403  * initialization. The Axi Ethernet basic multicast support has a four-entry
470  * axienet_setoptions - Set an Axi Ethernet option
474  * The Axi Ethernet core has multiple features which can be selectively turned
477  * these options in the Axi Ethernet hardware. This is done through
501 	/* Reset Axi DMA. This would reset Axi Ethernet core as well. The reset  in __axienet_device_reset()
502 	 * process of Axi DMA takes a while to complete as all pending  in __axienet_device_reset()
524  * axienet_device_reset - Reset and initialize the Axi Ethernet hardware.
527  * This function is called to reset and initialize the Axi Ethernet core. This
528  * is typically called during initialization. It does a reset of the Axi DMA
529  * Rx/Tx channels and initializes the Axi DMA BDs. Since Axi DMA reset lines
530  * areconnected to Axi Ethernet reset lines, this in turn resets the Axi
531  * Ethernet core. No separate hardware reset is done for the Axi Ethernet
651  * Axi DMA Tx channel.
654  * This function is invoked from the Axi DMA Tx isr to notify the completion
715  * it populates AXI Stream Control fields with appropriate values.
811  * axienet_recv - Is called from Axi DMA Rx Isr to complete the received
815  * This function is invoked from the Axi DMA Rx isr to process the Rx BDs. It
908  * This is the Axi DMA Tx done Isr. It invokes "axienet_start_xmit_done"
958  * This is the Axi DMA Rx Isr. It invokes "axienet_recv" to complete the BD
1042  * and ISR handling. Axi Ethernet core is reset through Axi DMA core. Buffer
1052 	/* Disable the MDIO interface till Axi Ethernet Reset is completed.  in axienet_open()
1053 	 * When we do an Axi Ethernet reset, it resets the complete core  in axienet_open()
1075 	/* Enable worker thread for Axi DMA error handling */  in axienet_open()
1078 	/* Enable interrupts for Axi DMA Tx */  in axienet_open()
1083 	/* Enable interrupts for Axi DMA Rx */  in axienet_open()
1088 	/* Enable interrupts for Axi Ethernet core (if defined) */  in axienet_open()
1118  * The Axi DMA Tx/Rx BDs are released.
1182  * This is the change mtu driver routine. It checks if the Axi Ethernet
1204  * axienet_poll_controller - Axi Ethernet poll mechanism.
1247  * axienet_ethtools_get_drvinfo - Get various Axi Ethernet driver information.
1283  * This implements ethtool command for getting the Axi Ethernet register dump.
1375  * This implements ethtool command for getting axi ethernet pause frame
1630  * axienet_dma_err_handler - Work queue task for Axi DMA Error
1633  * Resets the Axi DMA and Axi Ethernet devices, and reconfigures the
1647 	/* Disable the MDIO interface till Axi Ethernet Reset is completed.  in axienet_dma_err_handler()
1648 	 * When we do an Axi Ethernet reset, it resets the complete core  in axienet_dma_err_handler()
1723 	/* Populate the tail pointer and bring the Rx Axi DMA engine out of  in axienet_dma_err_handler()
1764  * axienet_probe - Axi Ethernet probe function.
1770  * This is the probe routine for Axi Ethernet driver. This is called before
1812 		dev_err(&pdev->dev, "could not map Axi Ethernet regs.\n");  in axienet_probe()
1859 	/* For supporting jumbo frames, the Axi Ethernet hardware must have  in axienet_probe()
2076 MODULE_DESCRIPTION("Xilinx Axi Ethernet driver");