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- /* Gaisler.com GRETH 10/100/1000 Ethernet MAC driver
- *
- * (C) Copyright 2007
- * Daniel Hellstrom, Gaisler Research, daniel@gaisler.com
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
- #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;
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