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/*
* (C) Copyright 2007 Michal Simek
*
* Michal SIMEK <monstr@monstr.eu>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
* Based on Xilinx drivers
*
*/
typedef struct {
u32 regbaseaddress; /* Base address of registers */
u32 databaseaddress; /* Base address of data for FIFOs */
} xpacketfifov100b;
typedef struct {
u32 baseaddress; /* Base address (of IPIF) */
u32 isstarted; /* Device is currently started 0-no, 1-yes */
xpacketfifov100b recvfifo; /* FIFO used to receive frames */
xpacketfifov100b sendfifo; /* FIFO used to send frames */
} xemac;
#define XIIF_V123B_IISR_OFFSET 32UL /* IP interrupt status register */
#define XIIF_V123B_RESET_MASK 0xAUL
#define XIIF_V123B_RESETR_OFFSET 64UL /* reset register */
/* This constant is used with the Reset Register */
#define XPF_RESET_FIFO_MASK 0x0000000A
#define XPF_COUNT_STATUS_REG_OFFSET 4UL
/* These constants are used with the Occupancy/Vacancy Count Register. This
* register also contains FIFO status */
#define XPF_COUNT_MASK 0x0000FFFF
#define XPF_DEADLOCK_MASK 0x20000000
/* Offset of the MAC registers from the IPIF base address */
#define XEM_REG_OFFSET 0x1100UL
/*
* Register offsets for the Ethernet MAC. Each register is 32 bits.
*/
#define XEM_ECR_OFFSET (XEM_REG_OFFSET + 0x4) /* MAC Control */
#define XEM_SAH_OFFSET (XEM_REG_OFFSET + 0xC) /* Station addr, high */
#define XEM_SAL_OFFSET (XEM_REG_OFFSET + 0x10) /* Station addr, low */
#define XEM_RPLR_OFFSET (XEM_REG_OFFSET + 0x1C) /* Rx packet length */
#define XEM_TPLR_OFFSET (XEM_REG_OFFSET + 0x20) /* Tx packet length */
#define XEM_TSR_OFFSET (XEM_REG_OFFSET + 0x24) /* Tx status */
#define XEM_PFIFO_OFFSET 0x2000UL
/* Tx registers */
#define XEM_PFIFO_TXREG_OFFSET (XEM_PFIFO_OFFSET + 0x0)
/* Rx registers */
#define XEM_PFIFO_RXREG_OFFSET (XEM_PFIFO_OFFSET + 0x10)
/* Tx keyhole */
#define XEM_PFIFO_TXDATA_OFFSET (XEM_PFIFO_OFFSET + 0x100)
/* Rx keyhole */
#define XEM_PFIFO_RXDATA_OFFSET (XEM_PFIFO_OFFSET + 0x200)
/*
* EMAC Interrupt Registers (Status and Enable) masks. These registers are
* part of the IPIF IP Interrupt registers
*/
/* A mask for all transmit interrupts, used in polled mode */
#define XEM_EIR_XMIT_ALL_MASK (XEM_EIR_XMIT_DONE_MASK |\
XEM_EIR_XMIT_ERROR_MASK | \
XEM_EIR_XMIT_SFIFO_EMPTY_MASK |\
XEM_EIR_XMIT_LFIFO_FULL_MASK)
/* Xmit complete */
#define XEM_EIR_XMIT_DONE_MASK 0x00000001UL
/* Recv complete */
#define XEM_EIR_RECV_DONE_MASK 0x00000002UL
/* Xmit error */
#define XEM_EIR_XMIT_ERROR_MASK 0x00000004UL
/* Recv error */
#define XEM_EIR_RECV_ERROR_MASK 0x00000008UL
/* Xmit status fifo empty */
#define XEM_EIR_XMIT_SFIFO_EMPTY_MASK 0x00000010UL
/* Recv length fifo empty */
#define XEM_EIR_RECV_LFIFO_EMPTY_MASK 0x00000020UL
/* Xmit length fifo full */
#define XEM_EIR_XMIT_LFIFO_FULL_MASK 0x00000040UL
/* Recv length fifo overrun */
#define XEM_EIR_RECV_LFIFO_OVER_MASK 0x00000080UL
/* Recv length fifo underrun */
#define XEM_EIR_RECV_LFIFO_UNDER_MASK 0x00000100UL
/* Xmit status fifo overrun */
#define XEM_EIR_XMIT_SFIFO_OVER_MASK 0x00000200UL
/* Transmit status fifo underrun */
#define XEM_EIR_XMIT_SFIFO_UNDER_MASK 0x00000400UL
/* Transmit length fifo overrun */
#define XEM_EIR_XMIT_LFIFO_OVER_MASK 0x00000800UL
/* Transmit length fifo underrun */
#define XEM_EIR_XMIT_LFIFO_UNDER_MASK 0x00001000UL
/* Transmit pause pkt received */
#define XEM_EIR_XMIT_PAUSE_MASK 0x00002000UL
/*
* EMAC Control Register (ECR)
*/
/* Full duplex mode */
#define XEM_ECR_FULL_DUPLEX_MASK 0x80000000UL
/* Reset transmitter */
#define XEM_ECR_XMIT_RESET_MASK 0x40000000UL
/* Enable transmitter */
#define XEM_ECR_XMIT_ENABLE_MASK 0x20000000UL
/* Reset receiver */
#define XEM_ECR_RECV_RESET_MASK 0x10000000UL
/* Enable receiver */
#define XEM_ECR_RECV_ENABLE_MASK 0x08000000UL
/* Enable PHY */
#define XEM_ECR_PHY_ENABLE_MASK 0x04000000UL
/* Enable xmit pad insert */
#define XEM_ECR_XMIT_PAD_ENABLE_MASK 0x02000000UL
/* Enable xmit FCS insert */
#define XEM_ECR_XMIT_FCS_ENABLE_MASK 0x01000000UL
/* Enable unicast addr */
#define XEM_ECR_UNICAST_ENABLE_MASK 0x00020000UL
/* Enable broadcast addr */
#define XEM_ECR_BROAD_ENABLE_MASK 0x00008000UL
/*
* Transmit Status Register (TSR)
*/
/* Transmit excess deferral */
#define XEM_TSR_EXCESS_DEFERRAL_MASK 0x80000000UL
/* Transmit late collision */
#define XEM_TSR_LATE_COLLISION_MASK 0x01000000UL
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