Skip to content
Snippets Groups Projects
greth.h 3.02 KiB
Newer Older
  • Learn to ignore specific revisions
  • /* Gaisler.com GRETH 10/100/1000 Ethernet MAC driver
     *
     * (C) Copyright 2007
     * Daniel Hellstrom, Gaisler Research, daniel@gaisler.com
     *
     * 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
     */
    
    #define GRETH_FD 0x10
    #define GRETH_RESET 0x40
    #define GRETH_MII_BUSY 0x8
    #define GRETH_MII_NVALID 0x10
    
    /* MII registers */
    #define GRETH_MII_EXTADV_1000FD 0x00000200
    #define GRETH_MII_EXTADV_1000HD 0x00000100
    #define GRETH_MII_EXTPRT_1000FD 0x00000800
    #define GRETH_MII_EXTPRT_1000HD 0x00000400
    
    #define GRETH_MII_100T4 0x00000200
    #define GRETH_MII_100TXFD 0x00000100
    #define GRETH_MII_100TXHD 0x00000080
    #define GRETH_MII_10FD 0x00000040
    #define GRETH_MII_10HD 0x00000020
    
    #define GRETH_BD_EN 0x800
    #define GRETH_BD_WR 0x1000
    #define GRETH_BD_IE 0x2000
    #define GRETH_BD_LEN 0x7FF
    
    #define GRETH_TXEN 0x1
    #define GRETH_INT_TX 0x8
    #define GRETH_TXI 0x4
    #define GRETH_TXBD_STATUS 0x0001C000
    #define GRETH_TXBD_MORE 0x20000
    #define GRETH_TXBD_IPCS 0x40000
    #define GRETH_TXBD_TCPCS 0x80000
    #define GRETH_TXBD_UDPCS 0x100000
    #define GRETH_TXBD_ERR_LC 0x10000
    #define GRETH_TXBD_ERR_UE 0x4000
    #define GRETH_TXBD_ERR_AL 0x8000
    #define GRETH_TXBD_NUM 128
    #define GRETH_TXBD_NUM_MASK (GRETH_TXBD_NUM-1)
    #define GRETH_TX_BUF_SIZE 2048
    
    #define GRETH_INT_RX         0x4
    #define GRETH_RXEN           0x2
    #define GRETH_RXI            0x8
    #define GRETH_RXBD_STATUS    0xFFFFC000
    #define GRETH_RXBD_ERR_AE    0x4000
    #define GRETH_RXBD_ERR_FT    0x8000
    #define GRETH_RXBD_ERR_CRC   0x10000
    #define GRETH_RXBD_ERR_OE    0x20000
    #define GRETH_RXBD_ERR_LE    0x40000
    #define GRETH_RXBD_IP_DEC    0x80000
    #define GRETH_RXBD_IP_CSERR  0x100000
    #define GRETH_RXBD_UDP_DEC   0x200000
    #define GRETH_RXBD_UDP_CSERR 0x400000
    #define GRETH_RXBD_TCP_DEC   0x800000
    #define GRETH_RXBD_TCP_CSERR 0x1000000
    
    #define GRETH_RXBD_NUM 128
    #define GRETH_RXBD_NUM_MASK (GRETH_RXBD_NUM-1)
    #define GRETH_RX_BUF_SIZE 2048
    
    /* Ethernet configuration registers */
    typedef struct _greth_regs {
    	volatile unsigned int control;
    	volatile unsigned int status;
    	volatile unsigned int esa_msb;
    	volatile unsigned int esa_lsb;
    	volatile unsigned int mdio;
    	volatile unsigned int tx_desc_p;
    	volatile unsigned int rx_desc_p;
    } greth_regs;
    
    /* Ethernet buffer descriptor */
    typedef struct _greth_bd {
    	volatile unsigned int stat;
    	unsigned int addr;	/* Buffer address not changed by HW */
    } greth_bd;