u-boot/drivers/net/mvgbe.h

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/*
* (C) Copyright 2009
* Marvell Semiconductor <www.marvell.com>
* Written-by: Prafulla Wadaskar <prafulla@marvell.com>
*
* based on - Driver for MV64360X ethernet ports
* Copyright (C) 2002 rabeeh@galileo.co.il
*
* 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., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301 USA
*/
#ifndef __MVGBE_H__
#define __MVGBE_H__
/* PHY_BASE_ADR is board specific and can be configured */
#if defined (CONFIG_PHY_BASE_ADR)
#define PHY_BASE_ADR CONFIG_PHY_BASE_ADR
#else
#define PHY_BASE_ADR 0x08 /* default phy base addr */
#endif
/* Constants */
#define INT_CAUSE_UNMASK_ALL 0x0007ffff
#define INT_CAUSE_UNMASK_ALL_EXT 0x0011ffff
#define MRU_MASK 0xfff1ffff
#define PHYADR_MASK 0x0000001f
#define PHYREG_MASK 0x0000001f
#define QTKNBKT_DEF_VAL 0x3fffffff
#define QMTBS_DEF_VAL 0x000003ff
#define QTKNRT_DEF_VAL 0x0000fcff
#define RXUQ 0 /* Used Rx queue */
#define TXUQ 0 /* Used Rx queue */
#define to_mvgbe(_d) container_of(_d, struct mvgbe_device, dev)
#define MVGBE_REG_WR(adr, val) writel(val, &adr)
#define MVGBE_REG_RD(adr) readl(&adr)
#define MVGBE_REG_BITS_RESET(adr, val) writel(readl(&adr) & ~(val), &adr)
#define MVGBE_REG_BITS_SET(adr, val) writel(readl(&adr) | val, &adr)
/* Default port configuration value */
#define PRT_CFG_VAL ( \
MVGBE_UCAST_MOD_NRML | \
MVGBE_DFLT_RXQ(RXUQ) | \
MVGBE_DFLT_RX_ARPQ(RXUQ) | \
MVGBE_RX_BC_IF_NOT_IP_OR_ARP | \
MVGBE_RX_BC_IF_IP | \
MVGBE_RX_BC_IF_ARP | \
MVGBE_CPTR_TCP_FRMS_DIS | \
MVGBE_CPTR_UDP_FRMS_DIS | \
MVGBE_DFLT_RX_TCPQ(RXUQ) | \
MVGBE_DFLT_RX_UDPQ(RXUQ) | \
MVGBE_DFLT_RX_BPDUQ(RXUQ))
/* Default port extend configuration value */
#define PORT_CFG_EXTEND_VALUE \
MVGBE_SPAN_BPDU_PACKETS_AS_NORMAL | \
MVGBE_PARTITION_DIS | \
MVGBE_TX_CRC_GENERATION_EN
#define GT_MVGBE_IPG_INT_RX(value) ((value & 0x3fff) << 8)
/* Default sdma control value */
#define PORT_SDMA_CFG_VALUE ( \
MVGBE_RX_BURST_SIZE_16_64BIT | \
MVGBE_BLM_RX_NO_SWAP | \
MVGBE_BLM_TX_NO_SWAP | \
GT_MVGBE_IPG_INT_RX(RXUQ) | \
MVGBE_TX_BURST_SIZE_16_64BIT)
/* Default port serial control value */
#ifndef PORT_SERIAL_CONTROL_VALUE
#define PORT_SERIAL_CONTROL_VALUE ( \
MVGBE_FORCE_LINK_PASS | \
MVGBE_DIS_AUTO_NEG_FOR_DUPLX | \
MVGBE_DIS_AUTO_NEG_FOR_FLOW_CTRL | \
MVGBE_ADV_NO_FLOW_CTRL | \
MVGBE_FORCE_FC_MODE_NO_PAUSE_DIS_TX | \
MVGBE_FORCE_BP_MODE_NO_JAM | \
(1 << 9) /* Reserved bit has to be 1 */ | \
MVGBE_DO_NOT_FORCE_LINK_FAIL | \
MVGBE_EN_AUTO_NEG_SPEED_GMII | \
MVGBE_DTE_ADV_0 | \
MVGBE_MIIPHY_MAC_MODE | \
MVGBE_AUTO_NEG_NO_CHANGE | \
MVGBE_MAX_RX_PACKET_1552BYTE | \
MVGBE_CLR_EXT_LOOPBACK | \
MVGBE_SET_FULL_DUPLEX_MODE | \
MVGBE_DIS_FLOW_CTRL_TX_RX_IN_FULL_DUPLEX)
#endif
/* Tx WRR confoguration macros */
#define PORT_MAX_TRAN_UNIT 0x24 /* MTU register (default) 9KByte */
#define PORT_MAX_TOKEN_BUCKET_SIZE 0x_FFFF /* PMTBS reg (default) */
#define PORT_TOKEN_RATE 1023 /* PTTBRC reg (default) */
/* MAC accepet/reject macros */
#define ACCEPT_MAC_ADDR 0
#define REJECT_MAC_ADDR 1
/* Size of a Tx/Rx descriptor used in chain list data structure */
#define MV_RXQ_DESC_ALIGNED_SIZE \
(((sizeof(struct mvgbe_rxdesc) / PKTALIGN) + 1) * PKTALIGN)
/* Buffer offset from buffer pointer */
#define RX_BUF_OFFSET 0x2
/* Port serial status reg (PSR) */
#define MVGBE_INTERFACE_GMII_MII 0
#define MVGBE_INTERFACE_PCM 1
#define MVGBE_LINK_IS_DOWN 0
#define MVGBE_LINK_IS_UP (1 << 1)
#define MVGBE_PORT_AT_HALF_DUPLEX 0
#define MVGBE_PORT_AT_FULL_DUPLEX (1 << 2)
#define MVGBE_RX_FLOW_CTRL_DISD 0
#define MVGBE_RX_FLOW_CTRL_ENBALED (1 << 3)
#define MVGBE_GMII_SPEED_100_10 0
#define MVGBE_GMII_SPEED_1000 (1 << 4)
#define MVGBE_MII_SPEED_10 0
#define MVGBE_MII_SPEED_100 (1 << 5)
#define MVGBE_NO_TX 0
#define MVGBE_TX_IN_PROGRESS (1 << 7)
#define MVGBE_BYPASS_NO_ACTIVE 0
#define MVGBE_BYPASS_ACTIVE (1 << 8)
#define MVGBE_PORT_NOT_AT_PARTN_STT 0
#define MVGBE_PORT_AT_PARTN_STT (1 << 9)
#define MVGBE_PORT_TX_FIFO_NOT_EMPTY 0
#define MVGBE_PORT_TX_FIFO_EMPTY (1 << 10)
/* These macros describes the Port configuration reg (Px_cR) bits */
#define MVGBE_UCAST_MOD_NRML 0
#define MVGBE_UNICAST_PROMISCUOUS_MODE 1
#define MVGBE_DFLT_RXQ(_x) (_x << 1)
#define MVGBE_DFLT_RX_ARPQ(_x) (_x << 4)
#define MVGBE_RX_BC_IF_NOT_IP_OR_ARP 0
#define MVGBE_REJECT_BC_IF_NOT_IP_OR_ARP (1 << 7)
#define MVGBE_RX_BC_IF_IP 0
#define MVGBE_REJECT_BC_IF_IP (1 << 8)
#define MVGBE_RX_BC_IF_ARP 0
#define MVGBE_REJECT_BC_IF_ARP (1 << 9)
#define MVGBE_TX_AM_NO_UPDATE_ERR_SMRY (1 << 12)
#define MVGBE_CPTR_TCP_FRMS_DIS 0
#define MVGBE_CPTR_TCP_FRMS_EN (1 << 14)
#define MVGBE_CPTR_UDP_FRMS_DIS 0
#define MVGBE_CPTR_UDP_FRMS_EN (1 << 15)
#define MVGBE_DFLT_RX_TCPQ(_x) (_x << 16)
#define MVGBE_DFLT_RX_UDPQ(_x) (_x << 19)
#define MVGBE_DFLT_RX_BPDUQ(_x) (_x << 22)
#define MVGBE_DFLT_RX_TCP_CHKSUM_MODE (1 << 25)
/* These macros describes the Port configuration extend reg (Px_cXR) bits*/
#define MVGBE_CLASSIFY_EN 1
#define MVGBE_SPAN_BPDU_PACKETS_AS_NORMAL 0
#define MVGBE_SPAN_BPDU_PACKETS_TO_RX_Q7 (1 << 1)
#define MVGBE_PARTITION_DIS 0
#define MVGBE_PARTITION_EN (1 << 2)
#define MVGBE_TX_CRC_GENERATION_EN 0
#define MVGBE_TX_CRC_GENERATION_DIS (1 << 3)
/* These macros describes the Port Sdma configuration reg (SDCR) bits */
#define MVGBE_RIFB 1
#define MVGBE_RX_BURST_SIZE_1_64BIT 0
#define MVGBE_RX_BURST_SIZE_2_64BIT (1 << 1)
#define MVGBE_RX_BURST_SIZE_4_64BIT (1 << 2)
#define MVGBE_RX_BURST_SIZE_8_64BIT ((1 << 2) | (1 << 1))
#define MVGBE_RX_BURST_SIZE_16_64BIT (1 << 3)
#define MVGBE_BLM_RX_NO_SWAP (1 << 4)
#define MVGBE_BLM_RX_BYTE_SWAP 0
#define MVGBE_BLM_TX_NO_SWAP (1 << 5)
#define MVGBE_BLM_TX_BYTE_SWAP 0
#define MVGBE_DESCRIPTORS_BYTE_SWAP (1 << 6)
#define MVGBE_DESCRIPTORS_NO_SWAP 0
#define MVGBE_TX_BURST_SIZE_1_64BIT 0
#define MVGBE_TX_BURST_SIZE_2_64BIT (1 << 22)
#define MVGBE_TX_BURST_SIZE_4_64BIT (1 << 23)
#define MVGBE_TX_BURST_SIZE_8_64BIT ((1 << 23) | (1 << 22))
#define MVGBE_TX_BURST_SIZE_16_64BIT (1 << 24)
/* These macros describes the Port serial control reg (PSCR) bits */
#define MVGBE_SERIAL_PORT_DIS 0
#define MVGBE_SERIAL_PORT_EN 1
#define MVGBE_FORCE_LINK_PASS (1 << 1)
#define MVGBE_DO_NOT_FORCE_LINK_PASS 0
#define MVGBE_EN_AUTO_NEG_FOR_DUPLX 0
#define MVGBE_DIS_AUTO_NEG_FOR_DUPLX (1 << 2)
#define MVGBE_EN_AUTO_NEG_FOR_FLOW_CTRL 0
#define MVGBE_DIS_AUTO_NEG_FOR_FLOW_CTRL (1 << 3)
#define MVGBE_ADV_NO_FLOW_CTRL 0
#define MVGBE_ADV_SYMMETRIC_FLOW_CTRL (1 << 4)
#define MVGBE_FORCE_FC_MODE_NO_PAUSE_DIS_TX 0
#define MVGBE_FORCE_FC_MODE_TX_PAUSE_DIS (1 << 5)
#define MVGBE_FORCE_BP_MODE_NO_JAM 0
#define MVGBE_FORCE_BP_MODE_JAM_TX (1 << 7)
#define MVGBE_FORCE_BP_MODE_JAM_TX_ON_RX_ERR (1 << 8)
#define MVGBE_FORCE_LINK_FAIL 0
#define MVGBE_DO_NOT_FORCE_LINK_FAIL (1 << 10)
#define MVGBE_DIS_AUTO_NEG_SPEED_GMII (1 << 13)
#define MVGBE_EN_AUTO_NEG_SPEED_GMII 0
#define MVGBE_DTE_ADV_0 0
#define MVGBE_DTE_ADV_1 (1 << 14)
#define MVGBE_MIIPHY_MAC_MODE 0
#define MVGBE_MIIPHY_PHY_MODE (1 << 15)
#define MVGBE_AUTO_NEG_NO_CHANGE 0
#define MVGBE_RESTART_AUTO_NEG (1 << 16)
#define MVGBE_MAX_RX_PACKET_1518BYTE 0
#define MVGBE_MAX_RX_PACKET_1522BYTE (1 << 17)
#define MVGBE_MAX_RX_PACKET_1552BYTE (1 << 18)
#define MVGBE_MAX_RX_PACKET_9022BYTE ((1 << 18) | (1 << 17))
#define MVGBE_MAX_RX_PACKET_9192BYTE (1 << 19)
#define MVGBE_MAX_RX_PACKET_9700BYTE ((1 << 19) | (1 << 17))
#define MVGBE_SET_EXT_LOOPBACK (1 << 20)
#define MVGBE_CLR_EXT_LOOPBACK 0
#define MVGBE_SET_FULL_DUPLEX_MODE (1 << 21)
#define MVGBE_SET_HALF_DUPLEX_MODE 0
#define MVGBE_EN_FLOW_CTRL_TX_RX_IN_FULL_DUPLEX (1 << 22)
#define MVGBE_DIS_FLOW_CTRL_TX_RX_IN_FULL_DUPLEX 0
#define MVGBE_SET_GMII_SPEED_TO_10_100 0
#define MVGBE_SET_GMII_SPEED_TO_1000 (1 << 23)
#define MVGBE_SET_MII_SPEED_TO_10 0
#define MVGBE_SET_MII_SPEED_TO_100 (1 << 24)
/* SMI register fields */
#define MVGBE_PHY_SMI_TIMEOUT 10000
#define MVGBE_PHY_SMI_DATA_OFFS 0 /* Data */
#define MVGBE_PHY_SMI_DATA_MASK (0xffff << MVGBE_PHY_SMI_DATA_OFFS)
#define MVGBE_PHY_SMI_DEV_ADDR_OFFS 16 /* PHY device address */
#define MVGBE_PHY_SMI_DEV_ADDR_MASK \
(PHYADR_MASK << MVGBE_PHY_SMI_DEV_ADDR_OFFS)
#define MVGBE_SMI_REG_ADDR_OFFS 21 /* PHY device reg addr */
#define MVGBE_SMI_REG_ADDR_MASK \
(PHYADR_MASK << MVGBE_SMI_REG_ADDR_OFFS)
#define MVGBE_PHY_SMI_OPCODE_OFFS 26 /* Write/Read opcode */
#define MVGBE_PHY_SMI_OPCODE_MASK (3 << MVGBE_PHY_SMI_OPCODE_OFFS)
#define MVGBE_PHY_SMI_OPCODE_WRITE (0 << MVGBE_PHY_SMI_OPCODE_OFFS)
#define MVGBE_PHY_SMI_OPCODE_READ (1 << MVGBE_PHY_SMI_OPCODE_OFFS)
#define MVGBE_PHY_SMI_READ_VALID_MASK (1 << 27) /* Read Valid */
#define MVGBE_PHY_SMI_BUSY_MASK (1 << 28) /* Busy */
/* SDMA command status fields macros */
/* Tx & Rx descriptors status */
#define MVGBE_ERROR_SUMMARY 1
/* Tx & Rx descriptors command */
#define MVGBE_BUFFER_OWNED_BY_DMA (1 << 31)
/* Tx descriptors status */
#define MVGBE_LC_ERROR 0
#define MVGBE_UR_ERROR (1 << 1)
#define MVGBE_RL_ERROR (1 << 2)
#define MVGBE_LLC_SNAP_FORMAT (1 << 9)
#define MVGBE_TX_LAST_FRAME (1 << 20)
/* Rx descriptors status */
#define MVGBE_CRC_ERROR 0
#define MVGBE_OVERRUN_ERROR (1 << 1)
#define MVGBE_MAX_FRAME_LENGTH_ERROR (1 << 2)
#define MVGBE_RESOURCE_ERROR ((1 << 2) | (1 << 1))
#define MVGBE_VLAN_TAGGED (1 << 19)
#define MVGBE_BPDU_FRAME (1 << 20)
#define MVGBE_TCP_FRAME_OVER_IP_V_4 0
#define MVGBE_UDP_FRAME_OVER_IP_V_4 (1 << 21)
#define MVGBE_OTHER_FRAME_TYPE (1 << 22)
#define MVGBE_LAYER_2_IS_MVGBE_V_2 (1 << 23)
#define MVGBE_FRAME_TYPE_IP_V_4 (1 << 24)
#define MVGBE_FRAME_HEADER_OK (1 << 25)
#define MVGBE_RX_LAST_DESC (1 << 26)
#define MVGBE_RX_FIRST_DESC (1 << 27)
#define MVGBE_UNKNOWN_DESTINATION_ADDR (1 << 28)
#define MVGBE_RX_EN_INTERRUPT (1 << 29)
#define MVGBE_LAYER_4_CHECKSUM_OK (1 << 30)
/* Rx descriptors byte count */
#define MVGBE_FRAME_FRAGMENTED (1 << 2)
/* Tx descriptors command */
#define MVGBE_LAYER_4_CHECKSUM_FIRST_DESC (1 << 10)
#define MVGBE_FRAME_SET_TO_VLAN (1 << 15)
#define MVGBE_TCP_FRAME 0
#define MVGBE_UDP_FRAME (1 << 16)
#define MVGBE_GEN_TCP_UDP_CHECKSUM (1 << 17)
#define MVGBE_GEN_IP_V_4_CHECKSUM (1 << 18)
#define MVGBE_ZERO_PADDING (1 << 19)
#define MVGBE_TX_LAST_DESC (1 << 20)
#define MVGBE_TX_FIRST_DESC (1 << 21)
#define MVGBE_GEN_CRC (1 << 22)
#define MVGBE_TX_EN_INTERRUPT (1 << 23)
#define MVGBE_AUTO_MODE (1 << 30)
/* Address decode parameters */
/* Ethernet Base Address Register bits */
#define EBAR_TARGET_DRAM 0x00000000
#define EBAR_TARGET_DEVICE 0x00000001
#define EBAR_TARGET_CBS 0x00000002
#define EBAR_TARGET_PCI0 0x00000003
#define EBAR_TARGET_PCI1 0x00000004
#define EBAR_TARGET_CUNIT 0x00000005
#define EBAR_TARGET_AUNIT 0x00000006
#define EBAR_TARGET_GUNIT 0x00000007
/* Window attrib */
#define EBAR_DRAM_CS0 0x00000E00
#define EBAR_DRAM_CS1 0x00000D00
#define EBAR_DRAM_CS2 0x00000B00
#define EBAR_DRAM_CS3 0x00000700
/* DRAM Target interface */
#define EBAR_DRAM_NO_CACHE_COHERENCY 0x00000000
#define EBAR_DRAM_CACHE_COHERENCY_WT 0x00001000
#define EBAR_DRAM_CACHE_COHERENCY_WB 0x00002000
/* Device Bus Target interface */
#define EBAR_DEVICE_DEVCS0 0x00001E00
#define EBAR_DEVICE_DEVCS1 0x00001D00
#define EBAR_DEVICE_DEVCS2 0x00001B00
#define EBAR_DEVICE_DEVCS3 0x00001700
#define EBAR_DEVICE_BOOTCS3 0x00000F00
/* PCI Target interface */
#define EBAR_PCI_BYTE_SWAP 0x00000000
#define EBAR_PCI_NO_SWAP 0x00000100
#define EBAR_PCI_BYTE_WORD_SWAP 0x00000200
#define EBAR_PCI_WORD_SWAP 0x00000300
#define EBAR_PCI_NO_SNOOP_NOT_ASSERT 0x00000000
#define EBAR_PCI_NO_SNOOP_ASSERT 0x00000400
#define EBAR_PCI_IO_SPACE 0x00000000
#define EBAR_PCI_MEMORY_SPACE 0x00000800
#define EBAR_PCI_REQ64_FORCE 0x00000000
#define EBAR_PCI_REQ64_SIZE 0x00001000
/* Window access control */
#define EWIN_ACCESS_NOT_ALLOWED 0
#define EWIN_ACCESS_READ_ONLY 1
#define EWIN_ACCESS_FULL ((1 << 1) | 1)
/* structures represents Controller registers */
struct mvgbe_barsz {
u32 bar;
u32 size;
};
struct mvgbe_rxcdp {
struct mvgbe_rxdesc *rxcdp;
u32 rxcdp_pad[3];
};
struct mvgbe_tqx {
u32 qxttbc;
u32 tqxtbc;
u32 tqxac;
u32 tqxpad;
};
struct mvgbe_registers {
u32 phyadr;
u32 smi;
u32 euda;
u32 eudid;
u8 pad1[0x080 - 0x00c - 4];
u32 euic;
u32 euim;
u8 pad2[0x094 - 0x084 - 4];
u32 euea;
u32 euiae;
u8 pad3[0x0b0 - 0x098 - 4];
u32 euc;
u8 pad3a[0x200 - 0x0b0 - 4];
struct mvgbe_barsz barsz[6];
u8 pad4[0x280 - 0x22c - 4];
u32 ha_remap[4];
u32 bare;
u32 epap;
u8 pad5[0x400 - 0x294 - 4];
u32 pxc;
u32 pxcx;
u32 mii_ser_params;
u8 pad6[0x410 - 0x408 - 4];
u32 evlane;
u32 macal;
u32 macah;
u32 sdc;
u32 dscp[7];
u32 psc0;
u32 vpt2p;
u32 ps0;
u32 tqc;
u32 psc1;
u32 ps1;
u32 mrvl_header;
u8 pad7[0x460 - 0x454 - 4];
u32 ic;
u32 ice;
u32 pim;
u32 peim;
u8 pad8[0x474 - 0x46c - 4];
u32 pxtfut;
u32 pad9;
u32 pxmfs;
u32 pad10;
u32 pxdfc;
u32 pxofc;
u8 pad11[0x494 - 0x488 - 4];
u32 peuiae;
u8 pad12[0x4bc - 0x494 - 4];
u32 eth_type_prio;
u8 pad13[0x4dc - 0x4bc - 4];
u32 tqfpc;
u32 pttbrc;
u32 tqc1;
u32 pmtu;
u32 pmtbs;
u8 pad14[0x60c - 0x4ec - 4];
struct mvgbe_rxcdp rxcdp[7];
struct mvgbe_rxdesc *rxcdp7;
u32 rqc;
struct mvgbe_txdesc *tcsdp;
u8 pad15[0x6c0 - 0x684 - 4];
struct mvgbe_txdesc *tcqdp[8];
u8 pad16[0x700 - 0x6dc - 4];
struct mvgbe_tqx tqx[8];
u32 pttbc;
u8 pad17[0x7a8 - 0x780 - 4];
u32 tqxipg0;
u32 pad18[3];
u32 tqxipg1;
u8 pad19[0x7c0 - 0x7b8 - 4];
u32 hitkninlopkt;
u32 hitkninasyncpkt;
u32 lotkninasyncpkt;
u32 pad20;
u32 ts;
u8 pad21[0x3000 - 0x27d0 - 4];
u32 pad20_1[32]; /* mib counter registes */
u8 pad22[0x3400 - 0x3000 - sizeof(u32) * 32];
u32 dfsmt[64];
u32 dfomt[64];
u32 dfut[4];
u8 pad23[0xe20c0 - 0x7360c - 4];
u32 pmbus_top_arbiter;
};
/* structures/enums needed by driver */
enum mvgbe_adrwin {
MVGBE_WIN0,
MVGBE_WIN1,
MVGBE_WIN2,
MVGBE_WIN3,
MVGBE_WIN4,
MVGBE_WIN5
};
enum mvgbe_target {
MVGBE_TARGET_DRAM,
MVGBE_TARGET_DEV,
MVGBE_TARGET_CBS,
MVGBE_TARGET_PCI0,
MVGBE_TARGET_PCI1
};
struct mvgbe_winparam {
enum mvgbe_adrwin win; /* Window number */
enum mvgbe_target target; /* System targets */
u16 attrib; /* BAR attrib. See above macros */
u32 base_addr; /* Window base address in u32 form */
u32 high_addr; /* Window high address in u32 form */
u32 size; /* Size in MBytes. Must be % 64Kbyte. */
int enable; /* Enable/disable access to the window. */
u16 access_ctrl; /*Access ctrl register. see above macros */
};
struct mvgbe_rxdesc {
u32 cmd_sts; /* Descriptor command status */
u16 buf_size; /* Buffer size */
u16 byte_cnt; /* Descriptor buffer byte count */
u8 *buf_ptr; /* Descriptor buffer pointer */
struct mvgbe_rxdesc *nxtdesc_p; /* Next descriptor pointer */
};
struct mvgbe_txdesc {
u32 cmd_sts; /* Descriptor command status */
u16 l4i_chk; /* CPU provided TCP Checksum */
u16 byte_cnt; /* Descriptor buffer byte count */
u8 *buf_ptr; /* Descriptor buffer ptr */
struct mvgbe_txdesc *nxtdesc_p; /* Next descriptor ptr */
};
/* port device data struct */
struct mvgbe_device {
struct eth_device dev;
struct mvgbe_registers *regs;
struct mvgbe_txdesc *p_txdesc;
struct mvgbe_rxdesc *p_rxdesc;
struct mvgbe_rxdesc *p_rxdesc_curr;
u8 *p_rxbuf;
u8 *p_aligned_txbuf;
};
#endif /* __MVGBE_H__ */