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/*
* Cobham Gaisler ethernet MAC driver
* adapted from Opencores driver by Marko Isomaki
*
* The license and distribution terms for this file may be
* found in found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*/
#ifndef __GRETH_H__
#define __GRETH_H__
#ifdef __cplusplus
extern "C" {
#endif
/* Ethernet configuration registers */
typedef struct _greth_regs {
volatile uint32_t ctrl; /* Ctrl Register */
volatile uint32_t status; /* Status Register */
volatile uint32_t mac_addr_msb; /* Bit 47-32 of MAC address */
volatile uint32_t mac_addr_lsb; /* Bit 31-0 of MAC address */
volatile uint32_t mdio_ctrl; /* MDIO control and status */
volatile uint32_t txdesc; /* Transmit descriptor pointer */
volatile uint32_t rxdesc; /* Receive descriptor pointer */
} greth_regs;
#define GRETH_TOTAL_BD 128
#define GRETH_MAXBUF_LEN 1520
/* Tx BD */
#define GRETH_TXD_ENABLE 0x0800 /* Tx BD Enable */
#define GRETH_TXD_WRAP 0x1000 /* Tx BD Wrap (last BD) */
#define GRETH_TXD_IRQ 0x2000 /* Tx BD IRQ Enable */
#define GRETH_TXD_MORE 0x20000 /* Tx BD More (more descs for packet) */
#define GRETH_TXD_IPCS 0x40000 /* Tx BD insert ip chksum */
#define GRETH_TXD_TCPCS 0x80000 /* Tx BD insert tcp chksum */
#define GRETH_TXD_UDPCS 0x100000 /* Tx BD insert udp chksum */
#define GRETH_TXD_UNDERRUN 0x4000 /* Tx BD Underrun Status */
#define GRETH_TXD_RETLIM 0x8000 /* Tx BD Retransmission Limit Status */
#define GRETH_TXD_LATECOL 0x10000 /* Tx BD Late Collision */
#define GRETH_TXD_STATS (GRETH_TXD_UNDERRUN | \
GRETH_TXD_RETLIM | \
GRETH_TXD_LATECOL)
#define GRETH_TXD_CS (GRETH_TXD_IPCS | \
GRETH_TXD_TCPCS | \
GRETH_TXD_UDPCS)
/* Rx BD */
#define GRETH_RXD_ENABLE 0x0800 /* Rx BD Enable */
#define GRETH_RXD_WRAP 0x1000 /* Rx BD Wrap (last BD) */
#define GRETH_RXD_IRQ 0x2000 /* Rx BD IRQ Enable */
#define GRETH_RXD_DRIBBLE 0x4000 /* Rx BD Dribble Nibble Status */
#define GRETH_RXD_TOOLONG 0x8000 /* Rx BD Too Long Status */
#define GRETH_RXD_CRCERR 0x10000 /* Rx BD CRC Error Status */
#define GRETH_RXD_OVERRUN 0x20000 /* Rx BD Overrun Status */
#define GRETH_RXD_LENERR 0x40000 /* Rx BD Length Error */
#define GRETH_RXD_ID 0x40000 /* Rx BD IP Detected */
#define GRETH_RXD_IR 0x40000 /* Rx BD IP Chksum Error */
#define GRETH_RXD_UD 0x40000 /* Rx BD UDP Detected*/
#define GRETH_RXD_UR 0x40000 /* Rx BD UDP Chksum Error */
#define GRETH_RXD_TD 0x40000 /* Rx BD TCP Detected */
#define GRETH_RXD_TR 0x40000 /* Rx BD TCP Chksum Error */
#define GRETH_RXD_STATS (GRETH_RXD_OVERRUN | \
GRETH_RXD_DRIBBLE | \
GRETH_RXD_TOOLONG | \
GRETH_RXD_CRCERR)
/* CTRL Register */
#define GRETH_CTRL_TXEN 0x00000001 /* Transmit Enable */
#define GRETH_CTRL_RXEN 0x00000002 /* Receive Enable */
#define GRETH_CTRL_TXIRQ 0x00000004 /* Transmit Enable */
#define GRETH_CTRL_RXIRQ 0x00000008 /* Receive Enable */
#define GRETH_CTRL_FULLD 0x00000010 /* Full Duplex */
#define GRETH_CTRL_PRO 0x00000020 /* Promiscuous (receive all) */
#define GRETH_CTRL_RST 0x00000040 /* Reset MAC */
#define GRETH_CTRL_DD 0x00001000 /* Disable EDCL Duplex Detection */
/* Status Register */
#define GRETH_STATUS_RXERR 0x00000001 /* Receive Error */
#define GRETH_STATUS_TXERR 0x00000002 /* Transmit Error IRQ */
#define GRETH_STATUS_RXIRQ 0x00000004 /* Receive Frame IRQ */
#define GRETH_STATUS_TXIRQ 0x00000008 /* Transmit Error IRQ */
#define GRETH_STATUS_RXAHBERR 0x00000010 /* Receiver AHB Error */
#define GRETH_STATUS_TXAHBERR 0x00000020 /* Transmitter AHB Error */
/* MDIO Control */
#define GRETH_MDIO_WRITE 0x00000001 /* MDIO Write */
#define GRETH_MDIO_READ 0x00000002 /* MDIO Read */
#define GRETH_MDIO_LINKFAIL 0x00000004 /* MDIO Link failed */
#define GRETH_MDIO_BUSY 0x00000008 /* MDIO Link Busy */
#define GRETH_MDIO_REGADR 0x000007C0 /* Register Address */
#define GRETH_MDIO_PHYADR 0x0000F800 /* PHY address */
#define GRETH_MDIO_DATA 0xFFFF0000 /* MDIO DATA */
/* 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
/* Attach routine */
void greth_register_drv(void);
/* PHY data */
struct phy_device_info
{
int vendor;
int device;
int rev;
int adv;
int part;
int extadv;
int extpart;
};
/*
#ifdef CPU_U32_FIX
void ipalign(struct mbuf *m);
#endif
*/
#ifdef __cplusplus
}
#endif
#endif
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