mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-24 13:13:57 +08:00
4796417417
Driver for Dave DNET ethernet controller found on Dave/DENX QongEVB-LITE FPGA. Heavily based on Dave sources, I've just adopted it to current kernel version and done some code cleanup. Signed-off-by: Ilya Yanok <yanok@emcraft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
226 lines
7.1 KiB
C
226 lines
7.1 KiB
C
/*
|
|
* Dave DNET Ethernet Controller driver
|
|
*
|
|
* Copyright (C) 2008 Dave S.r.l. <www.dave.eu>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*/
|
|
#ifndef _DNET_H
|
|
#define _DNET_H
|
|
|
|
#define DRV_NAME "dnet"
|
|
#define DRV_VERSION "0.9.1"
|
|
#define PFX DRV_NAME ": "
|
|
|
|
/* Register access macros */
|
|
#define dnet_writel(port, value, reg) \
|
|
writel((value), (port)->regs + DNET_##reg)
|
|
#define dnet_readl(port, reg) readl((port)->regs + DNET_##reg)
|
|
|
|
/* ALL DNET FIFO REGISTERS */
|
|
#define DNET_RX_LEN_FIFO 0x000 /* RX_LEN_FIFO */
|
|
#define DNET_RX_DATA_FIFO 0x004 /* RX_DATA_FIFO */
|
|
#define DNET_TX_LEN_FIFO 0x008 /* TX_LEN_FIFO */
|
|
#define DNET_TX_DATA_FIFO 0x00C /* TX_DATA_FIFO */
|
|
|
|
/* ALL DNET CONTROL/STATUS REGISTERS OFFSETS */
|
|
#define DNET_VERCAPS 0x100 /* VERCAPS */
|
|
#define DNET_INTR_SRC 0x104 /* INTR_SRC */
|
|
#define DNET_INTR_ENB 0x108 /* INTR_ENB */
|
|
#define DNET_RX_STATUS 0x10C /* RX_STATUS */
|
|
#define DNET_TX_STATUS 0x110 /* TX_STATUS */
|
|
#define DNET_RX_FRAMES_CNT 0x114 /* RX_FRAMES_CNT */
|
|
#define DNET_TX_FRAMES_CNT 0x118 /* TX_FRAMES_CNT */
|
|
#define DNET_RX_FIFO_TH 0x11C /* RX_FIFO_TH */
|
|
#define DNET_TX_FIFO_TH 0x120 /* TX_FIFO_TH */
|
|
#define DNET_SYS_CTL 0x124 /* SYS_CTL */
|
|
#define DNET_PAUSE_TMR 0x128 /* PAUSE_TMR */
|
|
#define DNET_RX_FIFO_WCNT 0x12C /* RX_FIFO_WCNT */
|
|
#define DNET_TX_FIFO_WCNT 0x130 /* TX_FIFO_WCNT */
|
|
|
|
/* ALL DNET MAC REGISTERS */
|
|
#define DNET_MACREG_DATA 0x200 /* Mac-Reg Data */
|
|
#define DNET_MACREG_ADDR 0x204 /* Mac-Reg Addr */
|
|
|
|
/* ALL DNET RX STATISTICS COUNTERS */
|
|
#define DNET_RX_PKT_IGNR_CNT 0x300
|
|
#define DNET_RX_LEN_CHK_ERR_CNT 0x304
|
|
#define DNET_RX_LNG_FRM_CNT 0x308
|
|
#define DNET_RX_SHRT_FRM_CNT 0x30C
|
|
#define DNET_RX_IPG_VIOL_CNT 0x310
|
|
#define DNET_RX_CRC_ERR_CNT 0x314
|
|
#define DNET_RX_OK_PKT_CNT 0x318
|
|
#define DNET_RX_CTL_FRM_CNT 0x31C
|
|
#define DNET_RX_PAUSE_FRM_CNT 0x320
|
|
#define DNET_RX_MULTICAST_CNT 0x324
|
|
#define DNET_RX_BROADCAST_CNT 0x328
|
|
#define DNET_RX_VLAN_TAG_CNT 0x32C
|
|
#define DNET_RX_PRE_SHRINK_CNT 0x330
|
|
#define DNET_RX_DRIB_NIB_CNT 0x334
|
|
#define DNET_RX_UNSUP_OPCD_CNT 0x338
|
|
#define DNET_RX_BYTE_CNT 0x33C
|
|
|
|
/* DNET TX STATISTICS COUNTERS */
|
|
#define DNET_TX_UNICAST_CNT 0x400
|
|
#define DNET_TX_PAUSE_FRM_CNT 0x404
|
|
#define DNET_TX_MULTICAST_CNT 0x408
|
|
#define DNET_TX_BRDCAST_CNT 0x40C
|
|
#define DNET_TX_VLAN_TAG_CNT 0x410
|
|
#define DNET_TX_BAD_FCS_CNT 0x414
|
|
#define DNET_TX_JUMBO_CNT 0x418
|
|
#define DNET_TX_BYTE_CNT 0x41C
|
|
|
|
/* SOME INTERNAL MAC-CORE REGISTER */
|
|
#define DNET_INTERNAL_MODE_REG 0x0
|
|
#define DNET_INTERNAL_RXTX_CONTROL_REG 0x2
|
|
#define DNET_INTERNAL_MAX_PKT_SIZE_REG 0x4
|
|
#define DNET_INTERNAL_IGP_REG 0x8
|
|
#define DNET_INTERNAL_MAC_ADDR_0_REG 0xa
|
|
#define DNET_INTERNAL_MAC_ADDR_1_REG 0xc
|
|
#define DNET_INTERNAL_MAC_ADDR_2_REG 0xe
|
|
#define DNET_INTERNAL_TX_RX_STS_REG 0x12
|
|
#define DNET_INTERNAL_GMII_MNG_CTL_REG 0x14
|
|
#define DNET_INTERNAL_GMII_MNG_DAT_REG 0x16
|
|
|
|
#define DNET_INTERNAL_GMII_MNG_CMD_FIN (1 << 14)
|
|
|
|
#define DNET_INTERNAL_WRITE (1 << 31)
|
|
|
|
/* MAC-CORE REGISTER FIELDS */
|
|
|
|
/* MAC-CORE MODE REGISTER FIELDS */
|
|
#define DNET_INTERNAL_MODE_GBITEN (1 << 0)
|
|
#define DNET_INTERNAL_MODE_FCEN (1 << 1)
|
|
#define DNET_INTERNAL_MODE_RXEN (1 << 2)
|
|
#define DNET_INTERNAL_MODE_TXEN (1 << 3)
|
|
|
|
/* MAC-CORE RXTX CONTROL REGISTER FIELDS */
|
|
#define DNET_INTERNAL_RXTX_CONTROL_RXSHORTFRAME (1 << 8)
|
|
#define DNET_INTERNAL_RXTX_CONTROL_RXBROADCAST (1 << 7)
|
|
#define DNET_INTERNAL_RXTX_CONTROL_RXMULTICAST (1 << 4)
|
|
#define DNET_INTERNAL_RXTX_CONTROL_RXPAUSE (1 << 3)
|
|
#define DNET_INTERNAL_RXTX_CONTROL_DISTXFCS (1 << 2)
|
|
#define DNET_INTERNAL_RXTX_CONTROL_DISCFXFCS (1 << 1)
|
|
#define DNET_INTERNAL_RXTX_CONTROL_ENPROMISC (1 << 0)
|
|
#define DNET_INTERNAL_RXTX_CONTROL_DROPCONTROL (1 << 6)
|
|
#define DNET_INTERNAL_RXTX_CONTROL_ENABLEHALFDUP (1 << 5)
|
|
|
|
/* SYSTEM CONTROL REGISTER FIELDS */
|
|
#define DNET_SYS_CTL_IGNORENEXTPKT (1 << 0)
|
|
#define DNET_SYS_CTL_SENDPAUSE (1 << 2)
|
|
#define DNET_SYS_CTL_RXFIFOFLUSH (1 << 3)
|
|
#define DNET_SYS_CTL_TXFIFOFLUSH (1 << 4)
|
|
|
|
/* TX STATUS REGISTER FIELDS */
|
|
#define DNET_TX_STATUS_FIFO_ALMOST_EMPTY (1 << 2)
|
|
#define DNET_TX_STATUS_FIFO_ALMOST_FULL (1 << 1)
|
|
|
|
/* INTERRUPT SOURCE REGISTER FIELDS */
|
|
#define DNET_INTR_SRC_TX_PKTSENT (1 << 0)
|
|
#define DNET_INTR_SRC_TX_FIFOAF (1 << 1)
|
|
#define DNET_INTR_SRC_TX_FIFOAE (1 << 2)
|
|
#define DNET_INTR_SRC_TX_DISCFRM (1 << 3)
|
|
#define DNET_INTR_SRC_TX_FIFOFULL (1 << 4)
|
|
#define DNET_INTR_SRC_RX_CMDFIFOAF (1 << 8)
|
|
#define DNET_INTR_SRC_RX_CMDFIFOFF (1 << 9)
|
|
#define DNET_INTR_SRC_RX_DATAFIFOFF (1 << 10)
|
|
#define DNET_INTR_SRC_TX_SUMMARY (1 << 16)
|
|
#define DNET_INTR_SRC_RX_SUMMARY (1 << 17)
|
|
#define DNET_INTR_SRC_PHY (1 << 19)
|
|
|
|
/* INTERRUPT ENABLE REGISTER FIELDS */
|
|
#define DNET_INTR_ENB_TX_PKTSENT (1 << 0)
|
|
#define DNET_INTR_ENB_TX_FIFOAF (1 << 1)
|
|
#define DNET_INTR_ENB_TX_FIFOAE (1 << 2)
|
|
#define DNET_INTR_ENB_TX_DISCFRM (1 << 3)
|
|
#define DNET_INTR_ENB_TX_FIFOFULL (1 << 4)
|
|
#define DNET_INTR_ENB_RX_PKTRDY (1 << 8)
|
|
#define DNET_INTR_ENB_RX_FIFOAF (1 << 9)
|
|
#define DNET_INTR_ENB_RX_FIFOERR (1 << 10)
|
|
#define DNET_INTR_ENB_RX_ERROR (1 << 11)
|
|
#define DNET_INTR_ENB_RX_FIFOFULL (1 << 12)
|
|
#define DNET_INTR_ENB_RX_FIFOAE (1 << 13)
|
|
#define DNET_INTR_ENB_TX_SUMMARY (1 << 16)
|
|
#define DNET_INTR_ENB_RX_SUMMARY (1 << 17)
|
|
#define DNET_INTR_ENB_GLOBAL_ENABLE (1 << 18)
|
|
|
|
/* default values:
|
|
* almost empty = less than one full sized ethernet frame (no jumbo) inside
|
|
* the fifo almost full = can write less than one full sized ethernet frame
|
|
* (no jumbo) inside the fifo
|
|
*/
|
|
#define DNET_CFG_TX_FIFO_FULL_THRES 25
|
|
#define DNET_CFG_RX_FIFO_FULL_THRES 20
|
|
|
|
/*
|
|
* Capabilities. Used by the driver to know the capabilities that the ethernet
|
|
* controller inside the FPGA have.
|
|
*/
|
|
|
|
#define DNET_HAS_MDIO (1 << 0)
|
|
#define DNET_HAS_IRQ (1 << 1)
|
|
#define DNET_HAS_GIGABIT (1 << 2)
|
|
#define DNET_HAS_DMA (1 << 3)
|
|
|
|
#define DNET_HAS_MII (1 << 4) /* or GMII */
|
|
#define DNET_HAS_RMII (1 << 5) /* or RGMII */
|
|
|
|
#define DNET_CAPS_MASK 0xFFFF
|
|
|
|
#define DNET_FIFO_SIZE 1024 /* 1K x 32 bit */
|
|
#define DNET_FIFO_TX_DATA_AF_TH (DNET_FIFO_SIZE - 384) /* 384 = 1536 / 4 */
|
|
#define DNET_FIFO_TX_DATA_AE_TH 384
|
|
|
|
#define DNET_FIFO_RX_CMD_AF_TH (1 << 16) /* just one frame inside the FIFO */
|
|
|
|
/*
|
|
* Hardware-collected statistics.
|
|
*/
|
|
struct dnet_stats {
|
|
u32 rx_pkt_ignr;
|
|
u32 rx_len_chk_err;
|
|
u32 rx_lng_frm;
|
|
u32 rx_shrt_frm;
|
|
u32 rx_ipg_viol;
|
|
u32 rx_crc_err;
|
|
u32 rx_ok_pkt;
|
|
u32 rx_ctl_frm;
|
|
u32 rx_pause_frm;
|
|
u32 rx_multicast;
|
|
u32 rx_broadcast;
|
|
u32 rx_vlan_tag;
|
|
u32 rx_pre_shrink;
|
|
u32 rx_drib_nib;
|
|
u32 rx_unsup_opcd;
|
|
u32 rx_byte;
|
|
u32 tx_unicast;
|
|
u32 tx_pause_frm;
|
|
u32 tx_multicast;
|
|
u32 tx_brdcast;
|
|
u32 tx_vlan_tag;
|
|
u32 tx_bad_fcs;
|
|
u32 tx_jumbo;
|
|
u32 tx_byte;
|
|
};
|
|
|
|
struct dnet {
|
|
void __iomem *regs;
|
|
spinlock_t lock;
|
|
struct platform_device *pdev;
|
|
struct net_device *dev;
|
|
struct dnet_stats hw_stats;
|
|
unsigned int capabilities; /* read from FPGA */
|
|
struct napi_struct napi;
|
|
|
|
/* PHY stuff */
|
|
struct mii_bus *mii_bus;
|
|
struct phy_device *phy_dev;
|
|
unsigned int link;
|
|
unsigned int speed;
|
|
unsigned int duplex;
|
|
};
|
|
|
|
#endif /* _DNET_H */
|