diff options
Diffstat (limited to 'include/libchip/greth.h')
| -rw-r--r-- | include/libchip/greth.h | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/include/libchip/greth.h b/include/libchip/greth.h new file mode 100644 index 0000000000..c6e000dbd3 --- /dev/null +++ b/include/libchip/greth.h @@ -0,0 +1,152 @@ +/* + * Gaisler Research ethernet MAC driver + * adapted from Opencores driver by Marko Isomaki + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.rtems.org/license/LICENSE. + */ + + +#ifndef _GR_ETH_ +#define _GR_ETH_ + + +/* Configuration Information */ + +typedef struct { + void *base_address; + rtems_vector_number vector; + uint32_t txd_count; + uint32_t rxd_count; +} greth_configuration_t; + +/* 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 */ + +/* 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 */ + +int rtems_greth_driver_attach ( + struct rtems_bsdnet_ifconfig *config, + greth_configuration_t *chip +); + +/* 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 + +*/ +#endif + |