--- /dev/null
+/*
+ * 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>
+*
+ * SPDX-License-Identifier: GPL-2.0+
+*
+* 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 <netdev.h>
+#include <asm/io.h>
+#include <pci.h>
+
+#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
+
+#define bus_to_phys(a) pci_mem_to_phys((pci_dev_t)dev->priv, (pci_addr_t)a)
+#define phys_to_bus(a) pci_phys_to_mem((pci_dev_t)dev->priv, (phys_addr_t)a)
+
+enum RTL8169_registers {
+ MAC0 = 0, /* Ethernet hardware address. */
+ MAR0 = 8, /* Multicast filter. */
+ TxDescStartAddrLow = 0x20,
+ TxDescStartAddrHigh = 0x24,
+ TxHDescStartAddrLow = 0x28,
+ TxHDescStartAddrHigh = 0x2c,
+ 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,
+ RxDescStartAddrLow = 0xE4,
+ RxDescStartAddrHigh = 0xE8,
+ 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,},
+ {"RTL-8169", 0x00, 0xff7e1880,},
+ {"RTL-8169s/8110s", 0x02, 0xff7e1880,},
+ {"RTL-8169s/8110s", 0x04, 0xff7e1880,},
+ {"RTL-8169sb/8110sb", 0x10, 0xff7e1880,},
+ {"RTL-8169sc/8110sc", 0x18, 0xff7e1880,},
+ {"RTL-8168b/8111sb", 0x30, 0xff7e1880,},
+ {"RTL-8168b/8111sb", 0x38, 0xff7e1880,},
+ {"RTL-8168d/8111d", 0x28, 0xff7e1880,},
+ {"RTL-8168evl/8111evl", 0x2e, 0xff7e1880,},
+ {"RTL-8101e", 0x34, 0xff7e1880,},
+ {"RTL-8100e", 0x32, 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, 0x8167},
+ {PCI_VENDOR_ID_REALTEK, 0x8168},
+ {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;
+}
+
+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%lX\n", (unsigned long) RTL_R32(TxConfig));
+ tpc->chipset = 0;
+
+match:
+ return 0;
+}
+
+/*
+ * Cache maintenance functions. These are simple wrappers around the more
+ * general purpose flush_cache() and invalidate_dcache_range() functions.
+ */
+
+static void rtl_inval_rx_desc(struct RxDesc *desc)
+{
+ unsigned long start = (unsigned long)desc & ~(ARCH_DMA_MINALIGN - 1);
+ unsigned long end = ALIGN(start + sizeof(*desc), ARCH_DMA_MINALIGN);
+
+ invalidate_dcache_range(start, end);
+}
+
+static void rtl_flush_rx_desc(struct RxDesc *desc)
+{
+ flush_cache((unsigned long)desc, sizeof(*desc));
+}
+
+static void rtl_inval_tx_desc(struct TxDesc *desc)
+{
+ unsigned long start = (unsigned long)desc & ~(ARCH_DMA_MINALIGN - 1);
+ unsigned long end = ALIGN(start + sizeof(*desc), ARCH_DMA_MINALIGN);
+
+ invalidate_dcache_range(start, end);
+}
+
+static void rtl_flush_tx_desc(struct TxDesc *desc)
+{
+ flush_cache((unsigned long)desc, sizeof(*desc));
+}
+
+static void rtl_inval_buffer(void *buf, size_t size)
+{
+ unsigned long start = (unsigned long)buf & ~(ARCH_DMA_MINALIGN - 1);
+ unsigned long end = ALIGN(start + size, ARCH_DMA_MINALIGN);
+
+ invalidate_dcache_range(start, end);
+}
+
+static void rtl_flush_buffer(void *buf, size_t size)
+{
+ flush_cache((unsigned long)buf, size);
+}
+
+/**************************************************************************
+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;
+
+ rtl_inval_rx_desc(&tpc->RxDescArray[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;
+
+ rtl_inval_buffer(tpc->RxBufferRing[cur_rx], length);
+ 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(bus_to_phys(tpc->RxBufferRing[cur_rx]));
+ rtl_flush_rx_desc(&tpc->RxDescArray[cur_rx]);
+ } else {
+ puts("Error Rx");
+ }
+ cur_rx = (cur_rx + 1) % NUM_RX_DESC;
+ tpc->cur_rx = cur_rx;
+ return 1;
+
+ } else {
+ ushort sts = RTL_R8(IntrStatus);
+ RTL_W8(IntrStatus, sts & ~(TxErr | RxErr | SYSErr));
+ udelay(100); /* wait */
+ }
+ 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, 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);
+ rtl_flush_buffer(ptxb, length);
+
+ while (len < ETH_ZLEN)
+ ptxb[len++] = '\0';
+
+ tpc->TxDescArray[entry].buf_Haddr = 0;
+ tpc->TxDescArray[entry].buf_addr = cpu_to_le32(bus_to_phys(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_flush_tx_desc(&tpc->TxDescArray[entry]);
+ RTL_W8(TxPoll, 0x40); /* set polling bit */
+
+ tpc->cur_tx++;
+ to = currticks() + TX_TIMEOUT;
+ do {
+ rtl_inval_tx_desc(&tpc->TxDescArray[entry]);
+ } 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 : %lu\n", __func__, 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-8169sb/8110sb or previous version */
+ if (tpc->chipset <= 5)
+ 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(TxDescStartAddrLow, bus_to_phys(tpc->TxDescArray));
+ RTL_W32(TxDescStartAddrHigh, (unsigned long)0);
+ RTL_W32(RxDescStartAddrLow, bus_to_phys(tpc->RxDescArray));
+ RTL_W32(RxDescStartAddrHigh, (unsigned long)0);
+
+ /* RTL-8169sc/8110sc or later version */
+ if (tpc->chipset > 5)
+ RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb);
+
+ 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 : %lu\n", __func__, 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(bus_to_phys(tpc->RxBufferRing[i]));
+ rtl_flush_rx_desc(&tpc->RxDescArray[i]);
+ }
+
+#ifdef DEBUG_RTL8169
+ printf("%s elapsed time : %lu\n", __func__, 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 : %lu\n", __func__, 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;
+ int i, rc;
+ int option = -1, Cap10_100 = 0, Cap1000 = 0;
+
+#ifdef DEBUG_RTL8169
+ printf ("%s\n", __FUNCTION__);
+#endif
+
+ ioaddr = dev->iobase;
+
+ board_idx++;
+
+ /* 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("chipset = %d\n", tpc->chipset);
+ 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){
+ unsigned int region;
+ u16 device;
+
+ /* Find RTL8169 */
+ if ((devno = pci_find_devices(supported, idx++)) < 0)
+ break;
+
+ pci_read_config_word(devno, PCI_DEVICE_ID, &device);
+ switch (device) {
+ case 0x8168:
+ region = 2;
+ break;
+
+ default:
+ region = 1;
+ break;
+ }
+
+ pci_read_config_dword(devno, PCI_BASE_ADDRESS_0 + (region * 4), &iobase);
+ iobase &= ~0xf;
+
+ debug ("rtl8169: REALTEK RTL8169 @0x%x\n", iobase);
+
+ dev = (struct eth_device *)malloc(sizeof *dev);
+ if (!dev) {
+ printf("Can not allocate memory of rtl8169\n");
+ break;
+ }
+
+ memset(dev, 0, 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;
+}
Code Review / kvmfornfv.git / blobdiff