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Diffstat (limited to 'drivers/rtl8169.c')
| -rw-r--r-- | drivers/rtl8169.c | 888 |
1 files changed, 888 insertions, 0 deletions
diff --git a/drivers/rtl8169.c b/drivers/rtl8169.c new file mode 100644 index 0000000..3393ba8 --- /dev/null +++ b/drivers/rtl8169.c @@ -0,0 +1,888 @@ +/* + * rtl8169.c : U-Boot driver for the RealTek RTL8169 + * + * Masami Komiya (mkomiya@sonare.it) + * + * Most part is taken from r8169.c of etherboot + * + */ + +/************************************************************************** +* 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 +* +* Indent Options: indent -kr -i8 +***************************************************************************/ + +#include <common.h> +#include <malloc.h> +#include <net.h> +#include <asm/io.h> +#include <pci.h> + +#if (CONFIG_COMMANDS & CFG_CMD_NET) && defined(CONFIG_NET_MULTI) && \ + defined(CONFIG_RTL8169) + +#undef DEBUG_RTL8169 +#undef DEBUG_RTL8169_TX +#undef DEBUG_RTL8169_RX + +#define drv_version "v1.5" +#define drv_date "01-17-2004" + +static u32 ioaddr; + +/* 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 currticks() get_timer(0) +#define bus_to_phys(a) pci_mem_to_phys((pci_dev_t)dev->priv, a) +#define phys_to_bus(a) pci_phys_to_mem((pci_dev_t)dev->priv, a) + +/* media options */ +#define MAX_UNITS 8 +static int media[MAX_UNITS] = { -1, -1, -1, -1, -1, -1, -1, -1 }; + +/* 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 RX_BUF_LEN 8192 + +#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))) + +#define ETH_FRAME_LEN MAX_ETH_FRAME_SIZE +#define ETH_ALEN MAC_ADDR_LEN +#define ETH_ZLEN 60 + +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,}, + {"RTL-8169", 0x04, 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; +}; + +/* Define the TX Descriptor */ +static u8 tx_ring[NUM_TX_DESC * sizeof(struct TxDesc) + 256]; +/* __attribute__ ((aligned(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]; + /* __attribute__ ((aligned(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 long dirty_tx; + 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 *RxBufferRings; /* Index of Rx 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); + +static struct pci_device_id supported[] = { + {PCI_VENDOR_ID_REALTEK, 0x8169}, + {} +}; + +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; +} + +#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) + +static int rtl8169_init_board(struct eth_device *dev) +{ + int i; + u32 tmp; + +#ifdef DEBUG_RTL8169 + printf ("%s\n", __FUNCTION__); +#endif + ioaddr = dev->iobase; + + /* 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 */ + printf("PCI device %s: unknown chip version, assuming RTL-8169\n", dev->name); + printf("PCI device: TxConfig = 0x%hX\n", (unsigned long) RTL_R32(TxConfig)); + tpc->chipset = 0; + +match: + return 0; +} + +/************************************************************************** +RECV - Receive a frame +***************************************************************************/ +static int rtl_recv(struct eth_device *dev) +{ + /* 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; + int length = 0; + +#ifdef DEBUG_RTL8169_RX + printf ("%s\n", __FUNCTION__); +#endif + ioaddr = dev->iobase; + + cur_rx = tpc->cur_rx; + if ((tpc->RxDescArray[cur_rx].status & OWNbit) == 0) { + if (!(tpc->RxDescArray[cur_rx].status & RxRES)) { + unsigned char rxdata[RX_BUF_LEN]; + length = (int) (tpc->RxDescArray[cur_rx]. + status & 0x00001FFF) - 4; + + memcpy(rxdata, tpc->RxBufferRing[cur_rx], length); + NetReceive(rxdata, length); + + 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 { + puts("Error Rx"); + } + cur_rx = (cur_rx + 1) % NUM_RX_DESC; + tpc->cur_rx = cur_rx; + return 1; + + } + tpc->cur_rx = cur_rx; + return (0); /* initially as this is called to flush the input */ +} + +#define HZ 1000 +/************************************************************************** +SEND - Transmit a frame +***************************************************************************/ +static int rtl_send(struct eth_device *dev, volatile void *packet, int length) +{ + /* send the packet to destination */ + + u32 to; + u8 *ptxb; + int entry = tpc->cur_tx % NUM_TX_DESC; + u32 len = length; + +#ifdef DEBUG_RTL8169_TX + int stime = currticks(); + printf ("%s\n", __FUNCTION__); + printf("sending %d bytes\n", len); +#endif + + ioaddr = dev->iobase; + + /* point to the current txb incase multiple tx_rings are used */ + ptxb = tpc->Tx_skbuff[entry * MAX_ETH_FRAME_SIZE]; + memcpy(ptxb, (char *)packet, (int)length); + + while (len < ETH_ZLEN) + ptxb[len++] = '\0'; + + tpc->TxDescArray[entry].buf_addr = virt_to_bus(ptxb); + if (entry != (NUM_TX_DESC - 1)) { + tpc->TxDescArray[entry].status = + (OWNbit | FSbit | LSbit) | ((len > ETH_ZLEN) ? + len : ETH_ZLEN); + } else { + tpc->TxDescArray[entry].status = + (OWNbit | EORbit | FSbit | LSbit) | + ((len > ETH_ZLEN) ? length : 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) { +#ifdef DEBUG_RTL8169_TX + puts ("tx timeout/error\n"); + printf ("%s elapsed time : %d\n", __FUNCTION__, currticks()-stime); +#endif + return 0; + } else { +#ifdef DEBUG_RTL8169_TX + puts("tx done\n"); +#endif + return length; + } +} + +static void rtl8169_set_rx_mode(struct eth_device *dev) +{ + u32 mc_filter[2]; /* Multicast hash filter */ + int rx_mode; + u32 tmp = 0; + +#ifdef DEBUG_RTL8169 + printf ("%s\n", __FUNCTION__); +#endif + + /* 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 eth_device *dev) +{ + u32 i; + +#ifdef DEBUG_RTL8169 + int stime = currticks(); + printf ("%s\n", __FUNCTION__); +#endif + +#if 0 + /* 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); + } +#endif + + 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(dev); + + /* no early-rx interrupts */ + RTL_W16(MultiIntr, RTL_R16(MultiIntr) & 0xF000); + +#ifdef DEBUG_RTL8169 + printf ("%s elapsed time : %d\n", __FUNCTION__, currticks()-stime); +#endif +} + +static void rtl8169_init_ring(struct eth_device *dev) +{ + int i; + +#ifdef DEBUG_RTL8169 + int stime = currticks(); + printf ("%s\n", __FUNCTION__); +#endif + + tpc->cur_rx = 0; + tpc->cur_tx = 0; + tpc->dirty_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]); + } + +#ifdef DEBUG_RTL8169 + printf ("%s elapsed time : %d\n", __FUNCTION__, currticks()-stime); +#endif +} + +/************************************************************************** +RESET - Finish setting up the ethernet interface +***************************************************************************/ +static void rtl_reset(struct eth_device *dev, bd_t *bis) +{ + int i; + u8 diff; + u32 TxPhyAddr, RxPhyAddr; + +#ifdef DEBUG_RTL8169 + int stime = currticks(); + printf ("%s\n", __FUNCTION__); +#endif + + tpc->TxDescArrays = tx_ring; + if (tpc->TxDescArrays == 0) + puts("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) { + puts("Allocate RxDescArray or TxDescArray failed\n"); + return; + } + + rtl8169_init_ring(dev); + rtl8169_hw_start(dev); + /* 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] = dev->enetaddr[0]; + txb[1] = dev->enetaddr[1]; + txb[2] = dev->enetaddr[2]; + txb[3] = dev->enetaddr[3]; + txb[4] = dev->enetaddr[4]; + txb[5] = dev->enetaddr[5]; + +#ifdef DEBUG_RTL8169 + printf ("%s elapsed time : %d\n", __FUNCTION__, currticks()-stime); +#endif +} + +/************************************************************************** +HALT - Turn off ethernet interface +***************************************************************************/ +static void rtl_halt(struct eth_device *dev) +{ + int i; + +#ifdef DEBUG_RTL8169 + printf ("%s\n", __FUNCTION__); +#endif + + ioaddr = dev->iobase; + + /* 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; + } +} + +/************************************************************************** +INIT - Look for an adapter, this routine's visible to the outside +***************************************************************************/ + +#define board_found 1 +#define valid_link 0 +static int rtl_init(struct eth_device *dev, bd_t *bis) +{ + static int board_idx = -1; + static int printed_version = 0; + int i, rc; + int option = -1, Cap10_100 = 0, Cap1000 = 0; + +#ifdef DEBUG_RTL8169 + printf ("%s\n", __FUNCTION__); +#endif + + ioaddr = dev->iobase; + + board_idx++; + + printed_version = 1; + + /* point to private storage */ + tpc = &tpx; + + rc = rtl8169_init_board(dev); + if (rc) + return rc; + + /* Get MAC address. FIXME: read EEPROM */ + for (i = 0; i < MAC_ADDR_LEN; i++) + dev->enetaddr[i] = RTL_R8(MAC0 + i); + +#ifdef DEBUG_RTL8169 + printf("MAC Address"); + for (i = 0; i < MAC_ADDR_LEN; i++) + printf(":%02x", dev->enetaddr[i]); + putc('\n'); +#endif + +#ifdef DEBUG_RTL8169 + /* Print out some hardware info */ + printf("%s: at ioaddr 0x%x\n", dev->name, ioaddr); +#endif + + /* if TBI is not endbled */ + if (!(RTL_R8(PHYstatus) & TBI_Enable)) { + int val = mdio_read(PHY_AUTO_NEGO_REG); + + option = (board_idx >= MAX_UNITS) ? 0 : media[board_idx]; + /* Force RTL8169 in 10/100/1000 Full/Half mode. */ + if (option > 0) { +#ifdef DEBUG_RTL8169 + printf("%s: Force-mode Enabled.\n", dev->name); +#endif + 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; + } + mdio_write(PHY_AUTO_NEGO_REG, Cap10_100 | (val & 0x1F)); /* leave PHY_AUTO_NEGO_REG bit4:0 unchanged */ + mdio_write(PHY_1000_CTRL_REG, Cap1000); + } else { +#ifdef DEBUG_RTL8169 + printf("%s: Auto-negotiation Enabled.\n", + dev->name); +#endif + /* 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) { +#ifdef DEBUG_RTL8169 + printf("%s: 1000Mbps Full-duplex operation.\n", + dev->name); +#endif + } else { +#ifdef DEBUG_RTL8169 + printf + ("%s: %sMbps %s-duplex operation.\n", + dev->name, + (option & _100bps) ? "100" : + "10", + (option & FullDup) ? "Full" : + "Half"); +#endif + } + break; + } else { + udelay(100); + } + } /* end for-loop to wait for auto-negotiation process */ + + } else { + udelay(100); +#ifdef DEBUG_RTL8169 + printf + ("%s: 1000Mbps Full-duplex operation, TBI Link %s!\n", + dev->name, + (RTL_R32(TBICSR) & TBILinkOK) ? "OK" : "Failed"); +#endif + } + + return 1; +} + +int rtl8169_initialize(bd_t *bis) +{ + pci_dev_t devno; + int card_number = 0; + struct eth_device *dev; + u32 iobase; + int idx=0; + + while(1){ + /* Find RTL8169 */ + if ((devno = pci_find_devices(supported, idx++)) < 0) + break; + + pci_read_config_dword(devno, PCI_BASE_ADDRESS_1, &iobase); + iobase &= ~0xf; + + debug ("rtl8169: REALTEK RTL8169 @0x%x\n", iobase); + + dev = (struct eth_device *)malloc(sizeof *dev); + + sprintf (dev->name, "RTL8169#%d", card_number); + + dev->priv = (void *) devno; + dev->iobase = (int)bus_to_phys(iobase); + + dev->init = rtl_reset; + dev->halt = rtl_halt; + dev->send = rtl_send; + dev->recv = rtl_recv; + + eth_register (dev); + + rtl_init(dev, bis); + + card_number++; + } + return card_number; +} + +#endif |