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- /**************************************************************************
- * r8169.c: Etherboot device driver for the RealTek RTL-8169 Gigabit
- * Written 2003 by Timothy Legge <tlegge@rogers.com>
- *
- * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * Portions of this code based on:
- * r8169.c: A RealTek RTL-8169 Gigabit Ethernet driver
- * for Linux kernel 2.4.x.
- *
- * Written 2002 ShuChen <shuchen@realtek.com.tw>
- * See Linux Driver for full information
- *
- * Linux Driver Version 1.27a, 10.02.2002
- *
- * Thanks to:
- * Jean Chen of RealTek Semiconductor Corp. for
- * providing the evaluation NIC used to develop
- * this driver. RealTek's support for Etherboot
- * is appreciated.
- *
- * REVISION HISTORY:
- * ================
- *
- * v1.0 11-26-2003 timlegge Initial port of Linux driver
- * v1.5 01-17-2004 timlegge Initial driver output cleanup
- * v1.6 03-27-2004 timlegge Additional Cleanup
- *
- * Indent Options: indent -kr -i8
- ***************************************************************************/
-
- /* to get some global routines like printf */
- #include "etherboot.h"
- /* to get the interface to the body of the program */
- #include "nic.h"
- /* to get the PCI support functions, if this is a PCI NIC */
- #include "pci.h"
- #include "timer.h"
-
- #define drv_version "v1.6"
- #define drv_date "03-27-2004"
-
- typedef unsigned char u8;
- typedef signed char s8;
- typedef unsigned short u16;
- typedef signed short s16;
- typedef unsigned int u32;
- typedef signed int s32;
-
- #define HZ 1000
-
- static u32 ioaddr;
-
- #ifdef EDEBUG
- #define dprintf(x) printf x
- #else
- #define dprintf(x)
- #endif
-
- /* Condensed operations for readability. */
- #define virt_to_le32desc(addr) cpu_to_le32(virt_to_bus(addr))
- #define le32desc_to_virt(addr) bus_to_virt(le32_to_cpu(addr))
-
- #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
-
- /* media options
- _10_Half = 0x01,
- _10_Full = 0x02,
- _100_Half = 0x04,
- _100_Full = 0x08,
- _1000_Full = 0x10,
- */
- static int media = -1;
-
- #if 0
- /* Maximum events (Rx packets, etc.) to handle at each interrupt. */
- static int max_interrupt_work = 20;
- #endif
-
- #if 0
- /* Maximum number of multicast addresses to filter (vs. Rx-all-multicast).
- The RTL chips use a 64 element hash table based on the Ethernet CRC. */
- static int multicast_filter_limit = 32;
- #endif
-
- /* MAC address length*/
- #define MAC_ADDR_LEN 6
-
- /* max supported gigabit ethernet frame size -- must be at least (dev->mtu+14+4).*/
- #define MAX_ETH_FRAME_SIZE 1536
-
- #define TX_FIFO_THRESH 256 /* In bytes */
-
- #define RX_FIFO_THRESH 7 /* 7 means NO threshold, Rx buffer level before first PCI xfer. */
- #define RX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */
- #define TX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */
- #define EarlyTxThld 0x3F /* 0x3F means NO early transmit */
- #define RxPacketMaxSize 0x0800 /* Maximum size supported is 16K-1 */
- #define InterFrameGap 0x03 /* 3 means InterFrameGap = the shortest one */
-
- #define NUM_TX_DESC 1 /* Number of Tx descriptor registers */
- #define NUM_RX_DESC 4 /* Number of Rx descriptor registers */
- #define RX_BUF_SIZE 1536 /* Rx Buffer size */
-
- #define RTL_MIN_IO_SIZE 0x80
- #define TX_TIMEOUT (6*HZ)
-
- /* write/read MMIO register */
- #define RTL_W8(reg, val8) writeb ((val8), ioaddr + (reg))
- #define RTL_W16(reg, val16) writew ((val16), ioaddr + (reg))
- #define RTL_W32(reg, val32) writel ((val32), ioaddr + (reg))
- #define RTL_R8(reg) readb (ioaddr + (reg))
- #define RTL_R16(reg) readw (ioaddr + (reg))
- #define RTL_R32(reg) ((unsigned long) readl (ioaddr + (reg)))
-
- enum RTL8169_registers {
- MAC0 = 0, /* Ethernet hardware address. */
- MAR0 = 8, /* Multicast filter. */
- TxDescStartAddr = 0x20,
- TxHDescStartAddr = 0x28,
- FLASH = 0x30,
- ERSR = 0x36,
- ChipCmd = 0x37,
- TxPoll = 0x38,
- IntrMask = 0x3C,
- IntrStatus = 0x3E,
- TxConfig = 0x40,
- RxConfig = 0x44,
- RxMissed = 0x4C,
- Cfg9346 = 0x50,
- Config0 = 0x51,
- Config1 = 0x52,
- Config2 = 0x53,
- Config3 = 0x54,
- Config4 = 0x55,
- Config5 = 0x56,
- MultiIntr = 0x5C,
- PHYAR = 0x60,
- TBICSR = 0x64,
- TBI_ANAR = 0x68,
- TBI_LPAR = 0x6A,
- PHYstatus = 0x6C,
- RxMaxSize = 0xDA,
- CPlusCmd = 0xE0,
- RxDescStartAddr = 0xE4,
- EarlyTxThres = 0xEC,
- FuncEvent = 0xF0,
- FuncEventMask = 0xF4,
- FuncPresetState = 0xF8,
- FuncForceEvent = 0xFC,
- };
-
- enum RTL8169_register_content {
- /*InterruptStatusBits */
- SYSErr = 0x8000,
- PCSTimeout = 0x4000,
- SWInt = 0x0100,
- TxDescUnavail = 0x80,
- RxFIFOOver = 0x40,
- RxUnderrun = 0x20,
- RxOverflow = 0x10,
- TxErr = 0x08,
- TxOK = 0x04,
- RxErr = 0x02,
- RxOK = 0x01,
-
- /*RxStatusDesc */
- RxRES = 0x00200000,
- RxCRC = 0x00080000,
- RxRUNT = 0x00100000,
- RxRWT = 0x00400000,
-
- /*ChipCmdBits */
- CmdReset = 0x10,
- CmdRxEnb = 0x08,
- CmdTxEnb = 0x04,
- RxBufEmpty = 0x01,
-
- /*Cfg9346Bits */
- Cfg9346_Lock = 0x00,
- Cfg9346_Unlock = 0xC0,
-
- /*rx_mode_bits */
- AcceptErr = 0x20,
- AcceptRunt = 0x10,
- AcceptBroadcast = 0x08,
- AcceptMulticast = 0x04,
- AcceptMyPhys = 0x02,
- AcceptAllPhys = 0x01,
-
- /*RxConfigBits */
- RxCfgFIFOShift = 13,
- RxCfgDMAShift = 8,
-
- /*TxConfigBits */
- TxInterFrameGapShift = 24,
- TxDMAShift = 8, /* DMA burst value (0-7) is shift this many bits */
-
- /*rtl8169_PHYstatus */
- TBI_Enable = 0x80,
- TxFlowCtrl = 0x40,
- RxFlowCtrl = 0x20,
- _1000bpsF = 0x10,
- _100bps = 0x08,
- _10bps = 0x04,
- LinkStatus = 0x02,
- FullDup = 0x01,
-
- /*GIGABIT_PHY_registers */
- PHY_CTRL_REG = 0,
- PHY_STAT_REG = 1,
- PHY_AUTO_NEGO_REG = 4,
- PHY_1000_CTRL_REG = 9,
-
- /*GIGABIT_PHY_REG_BIT */
- PHY_Restart_Auto_Nego = 0x0200,
- PHY_Enable_Auto_Nego = 0x1000,
-
- /* PHY_STAT_REG = 1; */
- PHY_Auto_Neco_Comp = 0x0020,
-
- /* PHY_AUTO_NEGO_REG = 4; */
- PHY_Cap_10_Half = 0x0020,
- PHY_Cap_10_Full = 0x0040,
- PHY_Cap_100_Half = 0x0080,
- PHY_Cap_100_Full = 0x0100,
-
- /* PHY_1000_CTRL_REG = 9; */
- PHY_Cap_1000_Full = 0x0200,
-
- PHY_Cap_Null = 0x0,
-
- /*_MediaType*/
- _10_Half = 0x01,
- _10_Full = 0x02,
- _100_Half = 0x04,
- _100_Full = 0x08,
- _1000_Full = 0x10,
-
- /*_TBICSRBit*/
- TBILinkOK = 0x02000000,
- };
-
- static struct {
- const char *name;
- u8 version; /* depend on RTL8169 docs */
- u32 RxConfigMask; /* should clear the bits supported by this chip */
- } rtl_chip_info[] = {
- {
- "RTL-8169", 0x00, 0xff7e1880,},};
-
- enum _DescStatusBit {
- OWNbit = 0x80000000,
- EORbit = 0x40000000,
- FSbit = 0x20000000,
- LSbit = 0x10000000,
- };
-
- struct TxDesc {
- u32 status;
- u32 vlan_tag;
- u32 buf_addr;
- u32 buf_Haddr;
- };
-
- struct RxDesc {
- u32 status;
- u32 vlan_tag;
- u32 buf_addr;
- u32 buf_Haddr;
- };
-
- /* The descriptors for this card are required to be aligned on
- 256 byte boundaries. As the align attribute does not do more than
- 16 bytes of alignment it requires some extra steps. Add 256 to the
- size of the array and the init_ring adjusts the alignment */
-
- /* Define the TX Descriptor */
- static u8 tx_ring[NUM_TX_DESC * sizeof(struct TxDesc) + 256];
-
- /* Create a static buffer of size RX_BUF_SZ for each
- TX Descriptor. All descriptors point to a
- part of this buffer */
- static unsigned char txb[NUM_TX_DESC * RX_BUF_SIZE];
-
- /* Define the RX Descriptor */
- static u8 rx_ring[NUM_RX_DESC * sizeof(struct TxDesc) + 256];
-
- /* Create a static buffer of size RX_BUF_SZ for each
- RX Descriptor All descriptors point to a
- part of this buffer */
- static unsigned char rxb[NUM_RX_DESC * RX_BUF_SIZE];
-
- struct rtl8169_private {
- void *mmio_addr; /* memory map physical address */
- int chipset;
- unsigned long cur_rx; /* Index into the Rx descriptor buffer of next Rx pkt. */
- unsigned long cur_tx; /* Index into the Tx descriptor buffer of next Rx pkt. */
- unsigned char *TxDescArrays; /* Index of Tx Descriptor buffer */
- unsigned char *RxDescArrays; /* Index of Rx Descriptor buffer */
- struct TxDesc *TxDescArray; /* Index of 256-alignment Tx Descriptor buffer */
- struct RxDesc *RxDescArray; /* Index of 256-alignment Rx Descriptor buffer */
- unsigned char *RxBufferRing[NUM_RX_DESC]; /* Index of Rx Buffer array */
- unsigned char *Tx_skbuff[NUM_TX_DESC];
- } tpx;
-
- static struct rtl8169_private *tpc;
-
- static const u16 rtl8169_intr_mask =
- SYSErr | PCSTimeout | RxUnderrun | RxOverflow | RxFIFOOver | TxErr |
- TxOK | RxErr | RxOK;
- static const unsigned int rtl8169_rx_config =
- (RX_FIFO_THRESH << RxCfgFIFOShift) | (RX_DMA_BURST << RxCfgDMAShift);
-
- void mdio_write(int RegAddr, int value)
- {
- int i;
-
- RTL_W32(PHYAR, 0x80000000 | (RegAddr & 0xFF) << 16 | value);
- udelay(1000);
-
- for (i = 2000; i > 0; i--) {
- /* Check if the RTL8169 has completed writing to the specified MII register */
- if (!(RTL_R32(PHYAR) & 0x80000000)) {
- break;
- } else {
- udelay(100);
- }
- }
- }
-
- int mdio_read(int RegAddr)
- {
- int i, value = -1;
-
- RTL_W32(PHYAR, 0x0 | (RegAddr & 0xFF) << 16);
- udelay(1000);
-
- for (i = 2000; i > 0; i--) {
- /* Check if the RTL8169 has completed retrieving data from the specified MII register */
- if (RTL_R32(PHYAR) & 0x80000000) {
- value = (int) (RTL_R32(PHYAR) & 0xFFFF);
- break;
- } else {
- udelay(100);
- }
- }
- return value;
- }
-
- static int rtl8169_init_board(struct pci_device *pdev)
- {
- int i;
- unsigned long rtreg_base, rtreg_len;
- u32 tmp;
-
- rtreg_base = pci_bar_start(pdev, PCI_BASE_ADDRESS_1);
- rtreg_len = pci_bar_size(pdev, PCI_BASE_ADDRESS_1);
-
- /* check for weird/broken PCI region reporting */
- if (rtreg_len < RTL_MIN_IO_SIZE) {
- printf("Invalid PCI region size(s), aborting\n");
- }
-
- adjust_pci_device(pdev);
- /* pm_cap = pci_find_capability(pdev, PCI_CAP_ID_PM); */
-
- /* ioremap MMIO region */
- ioaddr = (unsigned long) ioremap(rtreg_base, rtreg_len);
- if (ioaddr == 0)
- return 0;
-
- tpc->mmio_addr = &ioaddr;
- /* Soft reset the chip. */
- RTL_W8(ChipCmd, CmdReset);
-
- /* Check that the chip has finished the reset. */
- for (i = 1000; i > 0; i--)
- if ((RTL_R8(ChipCmd) & CmdReset) == 0)
- break;
- else
- udelay(10);
-
- /* identify chip attached to board */
- tmp = RTL_R32(TxConfig);
- tmp = ((tmp & 0x7c000000) + ((tmp & 0x00800000) << 2)) >> 24;
-
- for (i = ARRAY_SIZE(rtl_chip_info) - 1; i >= 0; i--)
- if (tmp == rtl_chip_info[i].version) {
- tpc->chipset = i;
- goto match;
- }
- /* if unknown chip, assume array element #0, original RTL-8169 in this case */
- dprintf(("PCI device: unknown chip version, assuming RTL-8169\n"));
- dprintf(("PCI device: TxConfig = 0x%hX\n",
- (unsigned long) RTL_R32(TxConfig)));
- tpc->chipset = 0;
- return 1;
- match:
- return 0;
-
- }
-
- /**************************************************************************
- IRQ - Wait for a frame
- ***************************************************************************/
- void r8169_irq ( struct nic *nic __unused, irq_action_t action ) {
- int intr_status = 0;
- int interested = RxUnderrun | RxOverflow | RxFIFOOver | RxErr | RxOK;
-
- switch ( action ) {
- case DISABLE:
- case ENABLE:
- intr_status = RTL_R16(IntrStatus);
- /* h/w no longer present (hotplug?) or major error,
- bail */
- if (intr_status == 0xFFFF)
- break;
-
- intr_status = intr_status & ~interested;
- if ( action == ENABLE )
- intr_status = intr_status | interested;
- RTL_W16(IntrMask, intr_status);
- break;
- case FORCE :
- RTL_W8(TxPoll, (RTL_R8(TxPoll) | 0x01));
- break;
- }
- }
-
- /**************************************************************************
- POLL - Wait for a frame
- ***************************************************************************/
- static int r8169_poll(struct nic *nic, int retreive)
- {
- /* return true if there's an ethernet packet ready to read */
- /* nic->packet should contain data on return */
- /* nic->packetlen should contain length of data */
- int cur_rx;
- unsigned int intr_status = 0;
- cur_rx = tpc->cur_rx;
- if ((tpc->RxDescArray[cur_rx].status & OWNbit) == 0) {
- /* There is a packet ready */
- if(!retreive)
- return 1;
- intr_status = RTL_R16(IntrStatus);
- /* h/w no longer present (hotplug?) or major error,
- bail */
- if (intr_status == 0xFFFF)
- return 0;
- RTL_W16(IntrStatus, intr_status &
- ~(RxFIFOOver | RxOverflow | RxOK));
-
- if (!(tpc->RxDescArray[cur_rx].status & RxRES)) {
- nic->packetlen = (int) (tpc->RxDescArray[cur_rx].
- status & 0x00001FFF) - 4;
- memcpy(nic->packet, tpc->RxBufferRing[cur_rx],
- nic->packetlen);
- if (cur_rx == NUM_RX_DESC - 1)
- tpc->RxDescArray[cur_rx].status =
- (OWNbit | EORbit) + RX_BUF_SIZE;
- else
- tpc->RxDescArray[cur_rx].status =
- OWNbit + RX_BUF_SIZE;
- tpc->RxDescArray[cur_rx].buf_addr =
- virt_to_bus(tpc->RxBufferRing[cur_rx]);
- } else
- printf("Error Rx");
- /* FIXME: shouldn't I reset the status on an error */
- cur_rx = (cur_rx + 1) % NUM_RX_DESC;
- tpc->cur_rx = cur_rx;
- RTL_W16(IntrStatus, intr_status &
- (RxFIFOOver | RxOverflow | RxOK));
-
- return 1;
-
- }
- tpc->cur_rx = cur_rx;
- /* FIXME: There is no reason to do this as cur_rx did not change */
-
- return (0); /* initially as this is called to flush the input */
-
- }
-
- /**************************************************************************
- TRANSMIT - Transmit a frame
- ***************************************************************************/
- static void r8169_transmit(struct nic *nic, const char *d, /* Destination */
- unsigned int t, /* Type */
- unsigned int s, /* size */
- const char *p)
- { /* Packet */
- /* send the packet to destination */
-
- u16 nstype;
- u32 to;
- u8 *ptxb;
- int entry = tpc->cur_tx % NUM_TX_DESC;
-
- /* point to the current txb incase multiple tx_rings are used */
- ptxb = tpc->Tx_skbuff[entry * MAX_ETH_FRAME_SIZE];
- memcpy(ptxb, d, ETH_ALEN);
- memcpy(ptxb + ETH_ALEN, nic->node_addr, ETH_ALEN);
- nstype = htons((u16) t);
- memcpy(ptxb + 2 * ETH_ALEN, (u8 *) & nstype, 2);
- memcpy(ptxb + ETH_HLEN, p, s);
- s += ETH_HLEN;
- s &= 0x0FFF;
- while (s < ETH_ZLEN)
- ptxb[s++] = '\0';
-
- tpc->TxDescArray[entry].buf_addr = virt_to_bus(ptxb);
- if (entry != (NUM_TX_DESC - 1))
- tpc->TxDescArray[entry].status =
- (OWNbit | FSbit | LSbit) | ((s > ETH_ZLEN) ? s :
- ETH_ZLEN);
- else
- tpc->TxDescArray[entry].status =
- (OWNbit | EORbit | FSbit | LSbit) | ((s > ETH_ZLEN) ? s
- : ETH_ZLEN);
- RTL_W8(TxPoll, 0x40); /* set polling bit */
-
- tpc->cur_tx++;
- to = currticks() + TX_TIMEOUT;
- while ((tpc->TxDescArray[entry].status & OWNbit) && (currticks() < to)); /* wait */
-
- if (currticks() >= to) {
- printf("TX Time Out");
- }
- }
-
- static void rtl8169_set_rx_mode(struct nic *nic __unused)
- {
- u32 mc_filter[2]; /* Multicast hash filter */
- int rx_mode;
- u32 tmp = 0;
-
- /* IFF_ALLMULTI */
- /* Too many to filter perfectly -- accept all multicasts. */
- rx_mode = AcceptBroadcast | AcceptMulticast | AcceptMyPhys;
- mc_filter[1] = mc_filter[0] = 0xffffffff;
-
- tmp =
- rtl8169_rx_config | rx_mode | (RTL_R32(RxConfig) &
- rtl_chip_info[tpc->chipset].
- RxConfigMask);
-
- RTL_W32(RxConfig, tmp);
- RTL_W32(MAR0 + 0, mc_filter[0]);
- RTL_W32(MAR0 + 4, mc_filter[1]);
- }
- static void rtl8169_hw_start(struct nic *nic)
- {
- u32 i;
-
- /* Soft reset the chip. */
- RTL_W8(ChipCmd, CmdReset);
-
- /* Check that the chip has finished the reset. */
- for (i = 1000; i > 0; i--) {
- if ((RTL_R8(ChipCmd) & CmdReset) == 0)
- break;
- else
- udelay(10);
- }
-
- RTL_W8(Cfg9346, Cfg9346_Unlock);
- RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb);
- RTL_W8(EarlyTxThres, EarlyTxThld);
-
- /* For gigabit rtl8169 */
- RTL_W16(RxMaxSize, RxPacketMaxSize);
-
- /* Set Rx Config register */
- i = rtl8169_rx_config | (RTL_R32(RxConfig) &
- rtl_chip_info[tpc->chipset].RxConfigMask);
- RTL_W32(RxConfig, i);
-
- /* Set DMA burst size and Interframe Gap Time */
- RTL_W32(TxConfig,
- (TX_DMA_BURST << TxDMAShift) | (InterFrameGap <<
- TxInterFrameGapShift));
-
-
- tpc->cur_rx = 0;
-
- RTL_W32(TxDescStartAddr, virt_to_le32desc(tpc->TxDescArray));
- RTL_W32(RxDescStartAddr, virt_to_le32desc(tpc->RxDescArray));
- RTL_W8(Cfg9346, Cfg9346_Lock);
- udelay(10);
-
- RTL_W32(RxMissed, 0);
-
- rtl8169_set_rx_mode(nic);
-
- /* no early-rx interrupts */
- RTL_W16(MultiIntr, RTL_R16(MultiIntr) & 0xF000);
- }
-
- static void rtl8169_init_ring(struct nic *nic __unused)
- {
- int i;
-
- tpc->cur_rx = 0;
- tpc->cur_tx = 0;
- memset(tpc->TxDescArray, 0x0, NUM_TX_DESC * sizeof(struct TxDesc));
- memset(tpc->RxDescArray, 0x0, NUM_RX_DESC * sizeof(struct RxDesc));
-
- for (i = 0; i < NUM_TX_DESC; i++) {
- tpc->Tx_skbuff[i] = &txb[i];
- }
-
- for (i = 0; i < NUM_RX_DESC; i++) {
- if (i == (NUM_RX_DESC - 1))
- tpc->RxDescArray[i].status =
- (OWNbit | EORbit) + RX_BUF_SIZE;
- else
- tpc->RxDescArray[i].status = OWNbit + RX_BUF_SIZE;
-
- tpc->RxBufferRing[i] = &rxb[i * RX_BUF_SIZE];
- tpc->RxDescArray[i].buf_addr =
- virt_to_bus(tpc->RxBufferRing[i]);
- }
- }
-
- /**************************************************************************
- RESET - Finish setting up the ethernet interface
- ***************************************************************************/
- static void r8169_reset(struct nic *nic)
- {
- int i;
- u8 diff;
- u32 TxPhyAddr, RxPhyAddr;
-
- tpc->TxDescArrays = tx_ring;
- if (tpc->TxDescArrays == 0)
- printf("Allot Error");
- /* Tx Desscriptor needs 256 bytes alignment; */
- TxPhyAddr = virt_to_bus(tpc->TxDescArrays);
- diff = 256 - (TxPhyAddr - ((TxPhyAddr >> 8) << 8));
- TxPhyAddr += diff;
- tpc->TxDescArray = (struct TxDesc *) (tpc->TxDescArrays + diff);
-
- tpc->RxDescArrays = rx_ring;
- /* Rx Desscriptor needs 256 bytes alignment; */
- RxPhyAddr = virt_to_bus(tpc->RxDescArrays);
- diff = 256 - (RxPhyAddr - ((RxPhyAddr >> 8) << 8));
- RxPhyAddr += diff;
- tpc->RxDescArray = (struct RxDesc *) (tpc->RxDescArrays + diff);
-
- if (tpc->TxDescArrays == NULL || tpc->RxDescArrays == NULL) {
- printf("Allocate RxDescArray or TxDescArray failed\n");
- return;
- }
-
- rtl8169_init_ring(nic);
- rtl8169_hw_start(nic);
- /* Construct a perfect filter frame with the mac address as first match
- * and broadcast for all others */
- for (i = 0; i < 192; i++)
- txb[i] = 0xFF;
-
- txb[0] = nic->node_addr[0];
- txb[1] = nic->node_addr[1];
- txb[2] = nic->node_addr[2];
- txb[3] = nic->node_addr[3];
- txb[4] = nic->node_addr[4];
- txb[5] = nic->node_addr[5];
- }
-
- /**************************************************************************
- DISABLE - Turn off ethernet interface
- ***************************************************************************/
- static void r8169_disable ( struct nic *nic __unused ) {
- int i;
- /* Stop the chip's Tx and Rx DMA processes. */
- RTL_W8(ChipCmd, 0x00);
-
- /* Disable interrupts by clearing the interrupt mask. */
- RTL_W16(IntrMask, 0x0000);
-
- RTL_W32(RxMissed, 0);
-
- tpc->TxDescArrays = NULL;
- tpc->RxDescArrays = NULL;
- tpc->TxDescArray = NULL;
- tpc->RxDescArray = NULL;
- for (i = 0; i < NUM_RX_DESC; i++) {
- tpc->RxBufferRing[i] = NULL;
- }
- }
-
- static struct nic_operations r8169_operations = {
- .connect = dummy_connect,
- .poll = r8169_poll,
- .transmit = r8169_transmit,
- .irq = r8169_irq,
- .disable = r8169_disable,
- };
-
- static struct pci_id r8169_nics[] = {
- PCI_ROM(0x10ec, 0x8169, "r8169", "RealTek RTL8169 Gigabit Ethernet"),
- };
-
- static struct pci_driver r8169_driver =
- PCI_DRIVER ( "r8169/PCI", r8169_nics, PCI_NO_CLASS );
-
- /**************************************************************************
- PROBE - Look for an adapter, this routine's visible to the outside
- ***************************************************************************/
-
- #define board_found 1
- #define valid_link 0
- static int r8169_probe ( struct dev *dev, struct pci_device *pci ) {
- struct nic *nic = nic_device ( dev );
- static int board_idx = -1;
- static int printed_version = 0;
- int i, rc;
- int option = -1, Cap10_100 = 0, Cap1000 = 0;
-
- if ( ! find_pci_device ( pci, &r8169_driver ) )
- return 0;
-
- printf("r8169.c: Found %s, Vendor=%hX Device=%hX\n",
- dev->name, pci->vendor, pci->dev_id);
-
- board_idx++;
-
- printed_version = 1;
-
- /* point to private storage */
- tpc = &tpx;
-
- rc = rtl8169_init_board(pci); /* Return code is meaningless */
-
- /* Get MAC address. FIXME: read EEPROM */
- for (i = 0; i < MAC_ADDR_LEN; i++)
- nic->node_addr[i] = RTL_R8(MAC0 + i);
-
- dprintf(("%s: Identified chip type is '%s'.\n", pci->name,
- rtl_chip_info[tpc->chipset].name));
- /* Print out some hardware info */
- printf("%s: %! at ioaddr %hX, ", dev->name, nic->node_addr,
- ioaddr);
-
- /* if TBI is not endbled */
- if (!(RTL_R8(PHYstatus) & TBI_Enable)) {
- int val = mdio_read(PHY_AUTO_NEGO_REG);
-
- option = media;
- /* Force RTL8169 in 10/100/1000 Full/Half mode. */
- if (option > 0) {
- printf(" Force-mode Enabled.\n");
- Cap10_100 = 0, Cap1000 = 0;
- switch (option) {
- case _10_Half:
- Cap10_100 = PHY_Cap_10_Half;
- Cap1000 = PHY_Cap_Null;
- break;
- case _10_Full:
- Cap10_100 = PHY_Cap_10_Full;
- Cap1000 = PHY_Cap_Null;
- break;
- case _100_Half:
- Cap10_100 = PHY_Cap_100_Half;
- Cap1000 = PHY_Cap_Null;
- break;
- case _100_Full:
- Cap10_100 = PHY_Cap_100_Full;
- Cap1000 = PHY_Cap_Null;
- break;
- case _1000_Full:
- Cap10_100 = PHY_Cap_Null;
- Cap1000 = PHY_Cap_1000_Full;
- break;
- default:
- break;
- }
- /* leave PHY_AUTO_NEGO_REG bit4:0 unchanged */
- mdio_write(PHY_AUTO_NEGO_REG,
- Cap10_100 | (val & 0x1F));
- mdio_write(PHY_1000_CTRL_REG, Cap1000);
- } else {
- dprintf(("Auto-negotiation Enabled.\n",
- pci->name));
-
- /* enable 10/100 Full/Half Mode, leave PHY_AUTO_NEGO_REG bit4:0 unchanged */
- mdio_write(PHY_AUTO_NEGO_REG,
- PHY_Cap_10_Half | PHY_Cap_10_Full |
- PHY_Cap_100_Half | PHY_Cap_100_Full |
- (val & 0x1F));
-
- /* enable 1000 Full Mode */
- mdio_write(PHY_1000_CTRL_REG, PHY_Cap_1000_Full);
-
- }
-
- /* Enable auto-negotiation and restart auto-nigotiation */
- mdio_write(PHY_CTRL_REG,
- PHY_Enable_Auto_Nego | PHY_Restart_Auto_Nego);
- udelay(100);
-
- /* wait for auto-negotiation process */
- for (i = 10000; i > 0; i--) {
- /* Check if auto-negotiation complete */
- if (mdio_read(PHY_STAT_REG) & PHY_Auto_Neco_Comp) {
- udelay(100);
- option = RTL_R8(PHYstatus);
- if (option & _1000bpsF) {
- printf
- ("1000Mbps Full-duplex operation.\n");
- } else {
- printf
- ("%sMbps %s-duplex operation.\n",
- (option & _100bps) ? "100" :
- "10",
- (option & FullDup) ? "Full" :
- "Half");
- }
- break;
- } else {
- udelay(100);
- }
- } /* end for-loop to wait for auto-negotiation process */
-
- } else {
- udelay(100);
- printf
- ("%s: 1000Mbps Full-duplex operation, TBI Link %s!\n",
- dev->name,
- (RTL_R32(TBICSR) & TBILinkOK) ? "OK" : "Failed");
-
- }
-
- r8169_reset(nic);
- /* point to NIC specific routines */
- nic->nic_op = &r8169_operations;
- nic->irqno = pci->irq;
- nic->ioaddr = ioaddr;
- return 1;
-
- }
-
- BOOT_DRIVER ( "r8169/PCI", r8169_probe );
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