125 lines
5.9 KiB
C
125 lines
5.9 KiB
C
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/*
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Ported to U-Boot by Christian Pellegrin <chri@ascensit.com>
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Based on sources from the Linux kernel (pcnet_cs.c, 8390.h) and
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eCOS(if_dp83902a.c, if_dp83902a.h). Both of these 2 wonderful world
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are GPL, so this is, of course, GPL.
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*/
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/* Generic NS8390 register definitions. */
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/* This file is part of Donald Becker's 8390 drivers, and is distributed
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under the same license. Auto-loading of 8390.o only in v2.2 - Paul G.
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Some of these names and comments originated from the Crynwr
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packet drivers, which are distributed under the GPL. */
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#ifndef _8390_h
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#define _8390_h
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/* Some generic ethernet register configurations. */
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#define E8390_TX_IRQ_MASK 0xa /* For register EN0_ISR */
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#define E8390_RX_IRQ_MASK 0x5
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#define E8390_RXCONFIG 0x4 /* EN0_RXCR: broadcasts, no multicast,errors */
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#define E8390_RXOFF 0x20 /* EN0_RXCR: Accept no packets */
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#define E8390_TXCONFIG 0x00 /* EN0_TXCR: Normal transmit mode */
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#define E8390_TXOFF 0x02 /* EN0_TXCR: Transmitter off */
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/* Register accessed at EN_CMD, the 8390 base addr. */
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#define E8390_STOP 0x01 /* Stop and reset the chip */
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#define E8390_START 0x02 /* Start the chip, clear reset */
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#define E8390_TRANS 0x04 /* Transmit a frame */
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#define E8390_RREAD 0x08 /* Remote read */
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#define E8390_RWRITE 0x10 /* Remote write */
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#define E8390_NODMA 0x20 /* Remote DMA */
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#define E8390_PAGE0 0x00 /* Select page chip registers */
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#define E8390_PAGE1 0x40 /* using the two high-order bits */
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#define E8390_PAGE2 0x80 /* Page 3 is invalid. */
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/*
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* Only generate indirect loads given a machine that needs them.
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* - removed AMIGA_PCMCIA from this list, handled as ISA io now
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*/
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#define n2k_inb(port) (*((volatile unsigned char *)(port+CONFIG_DRIVER_NE2000_BASE)))
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#define n2k_outb(val,port) (*((volatile unsigned char *)(port+CONFIG_DRIVER_NE2000_BASE)) = val)
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#define EI_SHIFT(x) (x)
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#define E8390_CMD EI_SHIFT(0x00) /* The command register (for all pages) */
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/* Page 0 register offsets. */
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#define EN0_CLDALO EI_SHIFT(0x01) /* Low byte of current local dma addr RD */
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#define EN0_STARTPG EI_SHIFT(0x01) /* Starting page of ring bfr WR */
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#define EN0_CLDAHI EI_SHIFT(0x02) /* High byte of current local dma addr RD */
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#define EN0_STOPPG EI_SHIFT(0x02) /* Ending page +1 of ring bfr WR */
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#define EN0_BOUNDARY EI_SHIFT(0x03) /* Boundary page of ring bfr RD WR */
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#define EN0_TSR EI_SHIFT(0x04) /* Transmit status reg RD */
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#define EN0_TPSR EI_SHIFT(0x04) /* Transmit starting page WR */
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#define EN0_NCR EI_SHIFT(0x05) /* Number of collision reg RD */
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#define EN0_TCNTLO EI_SHIFT(0x05) /* Low byte of tx byte count WR */
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#define EN0_FIFO EI_SHIFT(0x06) /* FIFO RD */
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#define EN0_TCNTHI EI_SHIFT(0x06) /* High byte of tx byte count WR */
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#define EN0_ISR EI_SHIFT(0x07) /* Interrupt status reg RD WR */
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#define EN0_CRDALO EI_SHIFT(0x08) /* low byte of current remote dma address RD */
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#define EN0_RSARLO EI_SHIFT(0x08) /* Remote start address reg 0 */
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#define EN0_CRDAHI EI_SHIFT(0x09) /* high byte, current remote dma address RD */
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#define EN0_RSARHI EI_SHIFT(0x09) /* Remote start address reg 1 */
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#define EN0_RCNTLO EI_SHIFT(0x0a) /* Remote byte count reg WR */
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#define EN0_RCNTHI EI_SHIFT(0x0b) /* Remote byte count reg WR */
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#define EN0_RSR EI_SHIFT(0x0c) /* rx status reg RD */
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#define EN0_RXCR EI_SHIFT(0x0c) /* RX configuration reg WR */
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#define EN0_TXCR EI_SHIFT(0x0d) /* TX configuration reg WR */
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#define EN0_COUNTER0 EI_SHIFT(0x0d) /* Rcv alignment error counter RD */
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#define EN0_DCFG EI_SHIFT(0x0e) /* Data configuration reg WR */
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#define EN0_COUNTER1 EI_SHIFT(0x0e) /* Rcv CRC error counter RD */
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#define EN0_IMR EI_SHIFT(0x0f) /* Interrupt mask reg WR */
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#define EN0_COUNTER2 EI_SHIFT(0x0f) /* Rcv missed frame error counter RD */
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/* Bits in EN0_ISR - Interrupt status register */
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#define ENISR_RX 0x01 /* Receiver, no error */
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#define ENISR_TX 0x02 /* Transmitter, no error */
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#define ENISR_RX_ERR 0x04 /* Receiver, with error */
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#define ENISR_TX_ERR 0x08 /* Transmitter, with error */
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#define ENISR_OVER 0x10 /* Receiver overwrote the ring */
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#define ENISR_COUNTERS 0x20 /* Counters need emptying */
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#define ENISR_RDC 0x40 /* remote dma complete */
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#define ENISR_RESET 0x80 /* Reset completed */
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#define ENISR_ALL 0x3f /* Interrupts we will enable */
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/* Bits in EN0_DCFG - Data config register */
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#define ENDCFG_WTS 0x01 /* word transfer mode selection */
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#define ENDCFG_BOS 0x02 /* byte order selection */
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#define ENDCFG_AUTO_INIT 0x10 /* Auto-init to remove packets from ring */
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#define ENDCFG_FIFO 0x40 /* 8 bytes */
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/* Page 1 register offsets. */
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#define EN1_PHYS EI_SHIFT(0x01) /* This board's physical enet addr RD WR */
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#define EN1_PHYS_SHIFT(i) EI_SHIFT(i+1) /* Get and set mac address */
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#define EN1_CURPAG EI_SHIFT(0x07) /* Current memory page RD WR */
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#define EN1_MULT EI_SHIFT(0x08) /* Multicast filter mask array (8 bytes) RD WR */
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#define EN1_MULT_SHIFT(i) EI_SHIFT(8+i) /* Get and set multicast filter */
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/* Bits in received packet status byte and EN0_RSR*/
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#define ENRSR_RXOK 0x01 /* Received a good packet */
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#define ENRSR_CRC 0x02 /* CRC error */
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#define ENRSR_FAE 0x04 /* frame alignment error */
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#define ENRSR_FO 0x08 /* FIFO overrun */
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#define ENRSR_MPA 0x10 /* missed pkt */
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#define ENRSR_PHY 0x20 /* physical/multicast address */
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#define ENRSR_DIS 0x40 /* receiver disable. set in monitor mode */
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#define ENRSR_DEF 0x80 /* deferring */
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/* Transmitted packet status, EN0_TSR. */
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#define ENTSR_PTX 0x01 /* Packet transmitted without error */
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#define ENTSR_ND 0x02 /* The transmit wasn't deferred. */
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#define ENTSR_COL 0x04 /* The transmit collided at least once. */
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#define ENTSR_ABT 0x08 /* The transmit collided 16 times, and was deferred. */
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#define ENTSR_CRS 0x10 /* The carrier sense was lost. */
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#define ENTSR_FU 0x20 /* A "FIFO underrun" occurred during transmit. */
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#define ENTSR_CDH 0x40 /* The collision detect "heartbeat" signal was lost. */
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#define ENTSR_OWC 0x80 /* There was an out-of-window collision. */
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#define NIC_RECEIVE_MONITOR_MODE 0x20
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#endif /* _8390_h */
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