--- /dev/null
+#ifndef _VELOCITY_H
+#define _VELOCITY_H
+
+/** @file
+ *
+ * VIA Velocity network driver
+ *
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+/** Skeleton BAR size */
+#define VELOCITY_BAR_SIZE 256
+
+/** Default timeout */
+#define VELOCITY_TIMEOUT_US 10 * 1000
+
+struct velocity_frag {
+ uint32_t addr;
+ uint32_t des2;
+} __attribute__ ((packed));
+
+/** Velocity descriptor format */
+struct velocity_tx_descriptor {
+ uint32_t des0;
+ uint32_t des1;
+ /* We only use the first fragment, the HW requires us to have 7 */
+ struct velocity_frag frags[7];
+} __attribute__ ((packed));
+
+struct velocity_rx_descriptor {
+ uint32_t des0;
+ uint32_t des1;
+ uint32_t addr;
+ uint32_t des2;
+} __attribute__ ((packed));
+
+#define VELOCITY_DES0_RMBC(_n) (((_n) >> 16) & 0x1fff)
+#define VELOCITY_DES0_OWN (1 << 31)
+#define VELOCITY_DES0_TERR (1 << 15)
+#define VELOCITY_DES0_RXOK (1 << 15)
+#define VELOCITY_DES0_FDX (1 << 14)
+#define VELOCITY_DES0_GMII (1 << 13)
+#define VELOCITY_DES0_LNKFL (1 << 12)
+#define VELOCITY_DES0_SHDN (1 << 10)
+#define VELOCITY_DES0_CRS (1 << 9)
+#define VELOCITY_DES0_CDH (1 << 8)
+#define VELOCITY_DES0_ABT (1 << 7)
+#define VELOCITY_DES0_OWT (1 << 6)
+#define VELOCITY_DES0_OWC (1 << 5)
+#define VELOCITY_DES0_COLS (1 << 4)
+
+#define VELOCITY_DES0_RXSHDN (1 << 30)
+#define VELOCITY_DES0_RXER (1 << 5)
+#define VELOCITY_DES0_RLE (1 << 4)
+#define VELOCITY_DES0_CE (1 << 3)
+#define VELOCITY_DES0_FAE (1 << 2)
+#define VELOCITY_DES0_CRC (1 << 1)
+#define VELOCITY_DES0_RX_ERR ( VELOCITY_DES0_RXER | \
+ VELOCITY_DES0_RLE | \
+ VELOCITY_DES0_CE | \
+ VELOCITY_DES0_FAE | \
+ VELOCITY_DES0_CRC )
+
+/** TX descriptor fragment number */
+#define VELOCITY_DES1_FRAG(_n) (((_n + 1) & 0xf) << 28)
+#define VELOCITY_DES1_TCPLS ((1 << 24) | (1 << 25))
+#define VELOCITY_DES1_INTR (1 << 23)
+#define VELOCITY_DES1_PIC (1 << 22)
+#define VELOCITY_DES1_VETAG (1 << 21)
+#define VELOCITY_DES1_IPCK (1 << 20)
+#define VELOCITY_DES1_UDPCK (1 << 19)
+#define VELOCITY_DES1_TCPCK (1 << 18)
+#define VELOCITY_DES1_JMBO (1 << 17)
+#define VELOCITY_DES1_CRC (1 << 16)
+
+#define VELOCITY_DES2_IC (1 << 31)
+#define VELOCITY_DES2_SIZE(_n) (((_n) & 0x1fff) << 16)
+
+/** Number of receive descriptors
+ *
+ * Must be a multiple of 4 (hardware requirement).
+ */
+#define VELOCITY_RXDESC_NUM 8
+#define VELOCITY_RXDESC_SIZE \
+ ( VELOCITY_RXDESC_NUM * sizeof ( struct velocity_rx_descriptor ) )
+
+/** Number of transmit descriptors */
+#define VELOCITY_TXDESC_NUM 8
+#define VELOCITY_TXDESC_SIZE \
+ ( VELOCITY_TXDESC_NUM * sizeof ( struct velocity_tx_descriptor ) )
+
+/** Descriptor alignment */
+#define VELOCITY_RING_ALIGN 64
+
+/** Receive buffer length */
+#define VELOCITY_RX_MAX_LEN 1536
+
+/** MAC address registers */
+#define VELOCITY_MAC0 0x00
+#define VELOCITY_MAC1 0x01
+#define VELOCITY_MAC2 0x02
+#define VELOCITY_MAC3 0x03
+#define VELOCITY_MAC4 0x04
+#define VELOCITY_MAC5 0x05
+
+/** Receive control register */
+#define VELOCITY_RCR 0x06
+#define RHINE_RCR_SYMERR_ACCEPT (1 << 7) /*< Accept symbol error */
+#define RHINE_RCR_FILTER_ACCEPT (1 << 6) /*< Accept based on filter */
+#define RHINE_RCR_LONG_ACCEPT (1 << 5) /*< Accept long packets */
+#define RHINE_RCR_PROMISC (1 << 4) /*< Promiscuous mode */
+#define RHINE_RCR_BCAST_ACCEPT (1 << 3) /*< Accept broadcast */
+#define RHINE_RCR_MCAST_ACCEPT (1 << 2) /*< Accept multicast */
+#define RHINE_RCR_RUNT_ACCEPT (1 << 1) /*< Accept runt frames */
+#define RHINE_RCR_ERR_ACCEPT (1 << 0) /*< Accept erroneous frames */
+
+/** Transmit control register */
+#define VELOCITY_TCR 0x07
+#define VELOCITY_TCR_LB0 (1 << 0) /*< Loopback control */
+#define VELOCITY_TCR_LB1 (1 << 1) /*< Loopback control */
+#define VELOCITY_TCR_COLTMC0 (1 << 2) /*< Collision retry control */
+#define VELOCITY_TCR_COLTMC1 (1 << 3) /*< Collision retry control */
+
+/** Command register 0 (set) */
+#define VELOCITY_CRS0 0x08
+#define VELOCITY_CR0_TXON (1 << 3) /*< Transmit enable */
+#define VELOCITY_CR0_RXON (1 << 2) /*< Receive enable */
+#define VELOCITY_CR0_STOP (1 << 1) /*< Stop NIC */
+#define VELOCITY_CR0_START (1 << 0) /*< Start NIC */
+
+/** Command register 1 (set) */
+#define VELOCITY_CRS1 0x09
+#define VELOCITY_CR1_SFRST (1 << 7) /*< Software reset */
+#define VELOCITY_CR1_TM1EN (1 << 6) /*< Perioding software counting */
+#define VELOCITY_CR1_TM0EN (1 << 5) /*< Single-shot software counting */
+#define VELOCITY_CR1_DPOLL (1 << 3) /*< Disable auto polling */
+#define VELOCITY_CR1_DISAU (1 << 0) /*< Unicast reception disable */
+
+/** Command register 2 (set) */
+#define VELOCITY_CRS2 0x0A
+#define VELOCITY_CR2_XONEN (1 << 7) /*< XON/XOFF mode enable */
+#define VELOCITY_CR2_FDXTFCEN (1 << 6) /*< FDX flow control TX */
+#define VELOCITY_CR2_FDXRFCEN (1 << 5)
+#define VELOCITY_CR2_HDXFCEN (1 << 4)
+
+/** Command register 3 (set) */
+#define VELOCITY_CRS3 0x0B
+#define VELOCITY_CR3_FOSRST (1 << 6)
+#define VELOCITY_CR3_FPHYRST (1 << 5)
+#define VELOCITY_CR3_DIAG (1 << 4)
+#define VELOCITY_CR3_INTPCTL (1 << 2)
+#define VELOCITY_CR3_GINTMSK1 (1 << 1)
+#define VELOCITY_CR3_SWPEND (1 << 0)
+
+/** Command register 0 (clear) */
+#define VELOCITY_CRC0 0x0C
+
+/** Command register 1 (clear) */
+#define VELOCITY_CRC1 0x0D
+
+/** Command register 2 (clear */
+#define VELOCITY_CRC2 0x0E
+
+/** Command register 3 (clear */
+#define VELOCITY_CRC3 0x0F
+#define VELOCITY_CAM0 0x10
+#define VELOCITY_CAM1 0x11
+#define VELOCITY_CAM2 0x12
+#define VELOCITY_CAM3 0x13
+#define VELOCITY_CAM4 0x14
+#define VELOCITY_CAM5 0x15
+#define VELOCITY_CAM6 0x16
+#define VELOCITY_CAM7 0x17
+#define VELOCITY_TXDESC_HI 0x18 /* Hi part of 64bit txdesc base addr */
+#define VELOCITY_DATABUF_HI 0x1D /* Hi part of 64bit data buffer addr */
+#define VELOCITY_INTCTL0 0x20 /* interrupt control register */
+#define VELOCITY_RXSUPPTHR 0x20
+#define VELOCITY_TXSUPPTHR 0x20
+#define VELOCITY_INTHOLDOFF 0x20
+#define VELOCITY_INTCTL1 0x21 /* interrupt control register */
+#define VELOCITY_TXHOSTERR 0x22 /* TX host error status */
+#define VELOCITY_RXHOSTERR 0x23 /* RX host error status */
+
+/** Interrupt status register 0 */
+#define VELOCITY_ISR0 0x24
+#define VELOCITY_ISR0_PTX3 (1 << 7)
+#define VELOCITY_ISR0_PTX2 (1 << 6)
+#define VELOCITY_ISR0_PTX1 (1 << 5)
+#define VELOCITY_ISR0_PTX0 (1 << 4)
+#define VELOCITY_ISR0_PTXI (1 << 3)
+#define VELOCITY_ISR0_PRXI (1 << 2)
+#define VELOCITY_ISR0_PPTXI (1 << 1)
+#define VELOCITY_ISR0_PPRXI (1 << 0)
+
+/** Interrupt status register 1 */
+#define VELOCITY_ISR1 0x25
+#define VELOCITY_ISR1_SRCI (1 << 7)
+#define VELOCITY_ISR1_LSTPEI (1 << 6)
+#define VELOCITY_ISR1_LSTEI (1 << 5)
+#define VELOCITY_ISR1_OVFL (1 << 4)
+#define VELOCITY_ISR1_FLONI (1 << 3)
+#define VELOCITY_ISR1_RACEI (1 << 2)
+
+/** Interrupt status register 2 */
+#define VELOCITY_ISR2 0x26
+#define VELOCITY_ISR2_HFLD (1 << 7)
+#define VELOCITY_ISR2_UDPI (1 << 6)
+#define VELOCITY_ISR2_MIBFI (1 << 5)
+#define VELOCITY_ISR2_SHDNII (1 << 4)
+#define VELOCITY_ISR2_PHYI (1 << 3)
+#define VELOCITY_ISR2_PWEI (1 << 2)
+#define VELOCITY_ISR2_TMR1I (1 << 1)
+#define VELOCITY_ISR2_TMR0I (1 << 0)
+
+/** Interrupt status register 3 */
+#define VELOCITY_ISR3 0x27
+
+/** Interrupt mask register 0 */
+#define VELOCITY_IMR0 0x28
+
+/** Interrupt mask register 1 */
+#define VELOCITY_IMR1 0x29
+
+/** Interrupt mask register 2 */
+#define VELOCITY_IMR2 0x2a
+
+/** Interrupt mask register 3 */
+#define VELOCITY_IMR3 0x2b
+
+#define VELOCITY_TXSTS_PORT 0x2C /* Transmit status port (???) */
+#define VELOCITY_TXQCSRS 0x30 /* TX queue ctl/status set */
+
+#define VELOCITY_TXQCSRS_DEAD3 (1 << 15)
+#define VELOCITY_TXQCSRS_WAK3 (1 << 14)
+#define VELOCITY_TXQCSRS_ACT3 (1 << 13)
+#define VELOCITY_TXQCSRS_RUN3 (1 << 12)
+#define VELOCITY_TXQCSRS_DEAD2 (1 << 11)
+#define VELOCITY_TXQCSRS_WAK2 (1 << 10)
+#define VELOCITY_TXQCSRS_ACT2 (1 << 9)
+#define VELOCITY_TXQCSRS_RUN2 (1 << 8)
+#define VELOCITY_TXQCSRS_DEAD1 (1 << 7)
+#define VELOCITY_TXQCSRS_WAK1 (1 << 6)
+#define VELOCITY_TXQCSRS_ACT1 (1 << 5)
+#define VELOCITY_TXQCSRS_RUN1 (1 << 4)
+#define VELOCITY_TXQCSRS_DEAD0 (1 << 3)
+#define VELOCITY_TXQCSRS_WAK0 (1 << 2)
+#define VELOCITY_TXQCSRS_ACT0 (1 << 1)
+#define VELOCITY_TXQCSRS_RUN0 (1 << 0)
+
+#define VELOCITY_RXQCSRS 0x32 /* RX queue ctl/status set */
+#define VELOCITY_RXQCSRC 0x36
+
+#define VELOCITY_RXQCSR_DEAD (1 << 3)
+#define VELOCITY_RXQCSR_WAK (1 << 2)
+#define VELOCITY_RXQCSR_ACT (1 << 1)
+#define VELOCITY_RXQCSR_RUN (1 << 0)
+
+#define VELOCITY_TXQCSRC 0x34 /* TX queue ctl/status clear */
+#define VELOCITY_RXQCSRC 0x36 /* RX queue ctl/status clear */
+#define VELOCITY_RXDESC_ADDR_LO 0x38 /* RX desc base addr (lo 32 bits) */
+#define VELOCITY_RXDESC_CONSIDX 0x3C /* Current RX descriptor index */
+#define VELOCITY_TXQTIMER 0x3E /* TX queue timer pend register */
+#define VELOCITY_RXQTIMER 0x3F /* RX queue timer pend register */
+#define VELOCITY_TXDESC_ADDR_LO0 0x40 /* TX desc0 base addr (lo 32 bits) */
+#define VELOCITY_TXDESC_ADDR_LO1 0x44 /* TX desc1 base addr (lo 32 bits) */
+#define VELOCITY_TXDESC_ADDR_LO2 0x48 /* TX desc2 base addr (lo 32 bits) */
+#define VELOCITY_TXDESC_ADDR_LO3 0x4C /* TX desc3 base addr (lo 32 bits) */
+#define VELOCITY_RXDESCNUM 0x50 /* Size of RX desc ring */
+#define VELOCITY_TXDESCNUM 0x52 /* Size of TX desc ring */
+#define VELOCITY_TXDESC_CONSIDX0 0x54 /* Current TX descriptor index */
+#define VELOCITY_TXDESC_CONSIDX1 0x56 /* Current TX descriptor index */
+#define VELOCITY_TXDESC_CONSIDX2 0x58 /* Current TX descriptor index */
+#define VELOCITY_TXDESC_CONSIDX3 0x5A /* Current TX descriptor index */
+#define VELOCITY_TX_PAUSE_TIMER 0x5C /* TX pause frame timer */
+#define VELOCITY_RXDESC_RESIDUECNT 0x5E /* RX descriptor residue count */
+#define VELOCITY_FIFOTEST0 0x60 /* FIFO test register */
+#define VELOCITY_FIFOTEST1 0x64 /* FIFO test register */
+#define VELOCITY_CAMADDR 0x68 /* CAM address register */
+#define VELOCITY_CAMCTL 0x69 /* CAM control register */
+#define VELOCITY_MIICFG 0x6C /* MII port config register */
+#define VELOCITY_MIISR 0x6D /* MII port status register */
+#define VELOCITY_MIISR_IDLE (1 << 7)
+#define VELOCITY_PHYSTS0 0x6E /* PHY status register */
+#define VELOCITY_PHYSTS0_LINK (1 << 6)
+#define VELOCITY_PHYSTS1 0x6F /* PHY status register */
+#define VELOCITY_MIICR 0x70 /* MII command register */
+#define VELOCITY_MIICR_MAUTO (1 << 7)
+#define VELOCITY_MIICR_RCMD (1 << 6)
+#define VELOCITY_MIICR_WCMD (1 << 5)
+#define VELOCITY_MIICR_MDPM (1 << 4)
+#define VELOCITY_MIICR_MOUT (1 << 3)
+#define VELOCITY_MIICR_MDO (1 << 2)
+#define VELOCITY_MIICR_MDI (1 << 1)
+#define VELOCITY_MIICR_MDC (1 << 0)
+
+#define VELOCITY_MIIADDR 0x71 /* MII address register */
+#define VELOCITY_MIIDATA 0x72 /* MII data register */
+#define VELOCITY_SSTIMER 0x74 /* single-shot timer */
+#define VELOCITY_PTIMER 0x76 /* periodic timer */
+#define VELOCITY_DMACFG0 0x7C /* DMA config 0 */
+#define VELOCITY_DMACFG1 0x7D /* DMA config 1 */
+#define VELOCITY_RXCFG 0x7E /* MAC RX config */
+#define VELOCITY_TXCFG 0x7F /* MAC TX config */
+#define VELOCITY_SWEEDATA 0x85 /* EEPROM software loaded data */
+
+/** Chip Configuration Register A */
+#define VELOCITY_CFGA 0x78
+#define VELOCITY_CFGA_PACPI (1 << 0)
+
+/** Power Management Sticky Register */
+#define VELOCITY_STICKY 0x83
+#define VELOCITY_STICKY_DS0 (1 << 0)
+#define VELOCITY_STICKY_DS1 (1 << 1)
+
+#define VELOCITY_EEWRDAT 0x8C /* EEPROM embedded write */
+#define VELOCITY_EECSUM 0x92 /* EEPROM checksum */
+#define VELOCITY_EECSR 0x93 /* EEPROM control/status */
+#define VELOCITY_EECSR_RELOAD (1 << 5)
+#define VELOCITY_EERDDAT 0x94 /* EEPROM embedded read */
+#define VELOCITY_EEADDR 0x96 /* EEPROM address */
+#define VELOCITY_EECMD 0x97 /* EEPROM embedded command */
+
+/** A Velocity network card */
+struct velocity_nic {
+ /** Registers */
+ void *regs;
+ /** MII interface */
+ struct mii_interface mii;
+ /** Netdev */
+ struct net_device *netdev;
+
+ /** Receive descriptor ring */
+ struct velocity_rx_descriptor *rx_ring;
+ /** Receive I/O buffers */
+ struct io_buffer *rx_buffs[VELOCITY_RXDESC_NUM];
+ /** Receive producer index */
+ unsigned int rx_prod;
+ /** Receive consumer index */
+ unsigned int rx_cons;
+ /** Receive commit number
+ *
+ * Used to fullfill the hardware requirement of returning receive buffers
+ * to the hardware only in blocks of 4.
+ */
+ unsigned int rx_commit;
+
+ /** Transmit descriptor ring */
+ struct velocity_tx_descriptor *tx_ring;
+ /** Transmit producer index */
+ unsigned int tx_prod;
+ /** Transmit consumer index */
+ unsigned int tx_cons;
+};
+
+#endif /* _VELOCITY_H */
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