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u-boot/drivers/net/rtl8169.c
Ben Warren 422b1a0160 Fix Ethernet init() return codes 
Change return values of init() functions in all Ethernet drivers to conform
to the following:

    >=0: Success
    <0:  Failure

All drivers going forward should return 0 on success.  Current drivers that
return 1 on success were left as-is to minimize changes.

Signed-off-by: Ben Warren <biggerbadderben@gmail.com>
Acked-by: Stefan Roese <sr@denx.de>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Acked-by: Kim Phillips <kim.phillips@freescale.com>
Acked-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Acked-By: Timur Tabi <timur@freescale.com>
2008-01-10 01:06:02 +01:00

879 lines
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/*
* 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
***************************************************************************/
/*
* 26 August 2006 Mihai Georgian <u-boot@linuxnotincluded.org.uk>
* Modified to use le32_to_cpu and cpu_to_le32 properly
*/
#include <common.h>
#include <malloc.h>
#include <net.h>
#include <asm/io.h>
#include <pci.h>
#if defined(CONFIG_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 currticks() get_timer(0)
/* 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. Notice: {read,write}[wl] do the necessary swapping */
#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_Nego_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 ((le32_to_cpu(tpc->RxDescArray[cur_rx].status) & OWNbit) == 0) {
if (!(le32_to_cpu(tpc->RxDescArray[cur_rx].status) & RxRES)) {
unsigned char rxdata[RX_BUF_LEN];
length = (int) (le32_to_cpu(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 =
cpu_to_le32((OWNbit | EORbit) + RX_BUF_SIZE);
else
tpc->RxDescArray[cur_rx].status =
cpu_to_le32(OWNbit + RX_BUF_SIZE);
tpc->RxDescArray[cur_rx].buf_addr =
cpu_to_le32(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;
int ret;
#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 = cpu_to_le32(ptxb);
if (entry != (NUM_TX_DESC - 1)) {
tpc->TxDescArray[entry].status =
cpu_to_le32((OWNbit | FSbit | LSbit) |
((len > ETH_ZLEN) ? len : ETH_ZLEN));
} else {
tpc->TxDescArray[entry].status =
cpu_to_le32((OWNbit | EORbit | FSbit | LSbit) |
((len > ETH_ZLEN) ? len : ETH_ZLEN));
}
RTL_W8(TxPoll, 0x40); /* set polling bit */
tpc->cur_tx++;
to = currticks() + TX_TIMEOUT;
while ((le32_to_cpu(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
ret = 0;
} else {
#ifdef DEBUG_RTL8169_TX
puts("tx done\n");
#endif
ret = length;
}
/* Delay to make net console (nc) work properly */
udelay(20);
return ret;
}
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, tpc->TxDescArray);
RTL_W32(RxDescStartAddr, 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 =
cpu_to_le32((OWNbit | EORbit) + RX_BUF_SIZE);
else
tpc->RxDescArray[i].status =
cpu_to_le32(OWNbit + RX_BUF_SIZE);
tpc->RxBufferRing[i] = &rxb[i * RX_BUF_SIZE];
tpc->RxDescArray[i].buf_addr =
cpu_to_le32(tpc->RxBufferRing[i]);
}
#ifdef DEBUG_RTL8169
printf ("%s elapsed time : %d\n", __FUNCTION__, currticks()-stime);
#endif
}
/**************************************************************************
RESET - Finish setting up the ethernet interface
***************************************************************************/
static int rtl_reset(struct eth_device *dev, bd_t *bis)
{
int i;
#ifdef DEBUG_RTL8169
int stime = currticks();
printf ("%s\n", __FUNCTION__);
#endif
tpc->TxDescArrays = tx_ring;
/* Tx Desscriptor needs 256 bytes alignment; */
tpc->TxDescArray = (struct TxDesc *) ((unsigned long)(tpc->TxDescArrays +
255) & ~255);
tpc->RxDescArrays = rx_ring;
/* Rx Desscriptor needs 256 bytes alignment; */
tpc->RxDescArray = (struct RxDesc *) ((unsigned long)(tpc->RxDescArrays +
255) & ~255);
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
return 0;
}
/**************************************************************************
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++)
bis->bi_enetaddr[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_Nego_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)pci_mem_to_phys(devno, 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
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