2 * rtl8169.c : U-Boot driver for the RealTek RTL8169
4 * Masami Komiya (mkomiya@sonare.it)
6 * Most part is taken from r8169.c of etherboot
10 /**************************************************************************
11 * r8169.c: Etherboot device driver for the RealTek RTL-8169 Gigabit
12 * Written 2003 by Timothy Legge <tlegge@rogers.com>
14 * SPDX-License-Identifier: GPL-2.0+
16 * Portions of this code based on:
17 * r8169.c: A RealTek RTL-8169 Gigabit Ethernet driver
18 * for Linux kernel 2.4.x.
20 * Written 2002 ShuChen <shuchen@realtek.com.tw>
21 * See Linux Driver for full information
23 * Linux Driver Version 1.27a, 10.02.2002
26 * Jean Chen of RealTek Semiconductor Corp. for
27 * providing the evaluation NIC used to develop
28 * this driver. RealTek's support for Etherboot
34 * v1.0 11-26-2003 timlegge Initial port of Linux driver
35 * v1.5 01-17-2004 timlegge Initial driver output cleanup
37 * Indent Options: indent -kr -i8
38 ***************************************************************************/
40 * 26 August 2006 Mihai Georgian <u-boot@linuxnotincluded.org.uk>
41 * Modified to use le32_to_cpu and cpu_to_le32 properly
56 #undef DEBUG_RTL8169_TX
57 #undef DEBUG_RTL8169_RX
59 #define drv_version "v1.5"
60 #define drv_date "01-17-2004"
62 static unsigned long ioaddr;
64 /* Condensed operations for readability. */
65 #define currticks() get_timer(0)
69 static int media[MAX_UNITS] = { -1, -1, -1, -1, -1, -1, -1, -1 };
71 /* MAC address length*/
72 #define MAC_ADDR_LEN 6
74 /* max supported gigabit ethernet frame size -- must be at least (dev->mtu+14+4).*/
75 #define MAX_ETH_FRAME_SIZE 1536
77 #define TX_FIFO_THRESH 256 /* In bytes */
79 #define RX_FIFO_THRESH 7 /* 7 means NO threshold, Rx buffer level before first PCI xfer. */
80 #define RX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */
81 #define TX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */
82 #define EarlyTxThld 0x3F /* 0x3F means NO early transmit */
83 #define RxPacketMaxSize 0x0800 /* Maximum size supported is 16K-1 */
84 #define InterFrameGap 0x03 /* 3 means InterFrameGap = the shortest one */
86 #define NUM_TX_DESC 1 /* Number of Tx descriptor registers */
87 #ifdef CONFIG_SYS_RX_ETH_BUFFER
88 #define NUM_RX_DESC CONFIG_SYS_RX_ETH_BUFFER
90 #define NUM_RX_DESC 4 /* Number of Rx descriptor registers */
92 #define RX_BUF_SIZE 1536 /* Rx Buffer size */
93 #define RX_BUF_LEN 8192
95 #define RTL_MIN_IO_SIZE 0x80
96 #define TX_TIMEOUT (6*HZ)
98 /* write/read MMIO register. Notice: {read,write}[wl] do the necessary swapping */
99 #define RTL_W8(reg, val8) writeb((val8), ioaddr + (reg))
100 #define RTL_W16(reg, val16) writew((val16), ioaddr + (reg))
101 #define RTL_W32(reg, val32) writel((val32), ioaddr + (reg))
102 #define RTL_R8(reg) readb(ioaddr + (reg))
103 #define RTL_R16(reg) readw(ioaddr + (reg))
104 #define RTL_R32(reg) readl(ioaddr + (reg))
106 #define ETH_FRAME_LEN MAX_ETH_FRAME_SIZE
107 #define ETH_ALEN MAC_ADDR_LEN
110 #define bus_to_phys(a) pci_mem_to_phys((pci_dev_t)(unsigned long)dev->priv, \
111 (pci_addr_t)(unsigned long)a)
112 #define phys_to_bus(a) pci_phys_to_mem((pci_dev_t)(unsigned long)dev->priv, \
115 enum RTL8169_registers {
116 MAC0 = 0, /* Ethernet hardware address. */
117 MAR0 = 8, /* Multicast filter. */
118 TxDescStartAddrLow = 0x20,
119 TxDescStartAddrHigh = 0x24,
120 TxHDescStartAddrLow = 0x28,
121 TxHDescStartAddrHigh = 0x2c,
146 RxDescStartAddrLow = 0xE4,
147 RxDescStartAddrHigh = 0xE8,
150 FuncEventMask = 0xF4,
151 FuncPresetState = 0xF8,
152 FuncForceEvent = 0xFC,
155 enum RTL8169_register_content {
156 /*InterruptStatusBits */
160 TxDescUnavail = 0x80,
183 Cfg9346_Unlock = 0xC0,
188 AcceptBroadcast = 0x08,
189 AcceptMulticast = 0x04,
191 AcceptAllPhys = 0x01,
198 TxInterFrameGapShift = 24,
199 TxDMAShift = 8, /* DMA burst value (0-7) is shift this many bits */
201 /*rtl8169_PHYstatus */
211 /*GIGABIT_PHY_registers */
214 PHY_AUTO_NEGO_REG = 4,
215 PHY_1000_CTRL_REG = 9,
217 /*GIGABIT_PHY_REG_BIT */
218 PHY_Restart_Auto_Nego = 0x0200,
219 PHY_Enable_Auto_Nego = 0x1000,
221 /* PHY_STAT_REG = 1; */
222 PHY_Auto_Nego_Comp = 0x0020,
224 /* PHY_AUTO_NEGO_REG = 4; */
225 PHY_Cap_10_Half = 0x0020,
226 PHY_Cap_10_Full = 0x0040,
227 PHY_Cap_100_Half = 0x0080,
228 PHY_Cap_100_Full = 0x0100,
230 /* PHY_1000_CTRL_REG = 9; */
231 PHY_Cap_1000_Full = 0x0200,
243 TBILinkOK = 0x02000000,
248 u8 version; /* depend on RTL8169 docs */
249 u32 RxConfigMask; /* should clear the bits supported by this chip */
250 } rtl_chip_info[] = {
251 {"RTL-8169", 0x00, 0xff7e1880,},
252 {"RTL-8169", 0x04, 0xff7e1880,},
253 {"RTL-8169", 0x00, 0xff7e1880,},
254 {"RTL-8169s/8110s", 0x02, 0xff7e1880,},
255 {"RTL-8169s/8110s", 0x04, 0xff7e1880,},
256 {"RTL-8169sb/8110sb", 0x10, 0xff7e1880,},
257 {"RTL-8169sc/8110sc", 0x18, 0xff7e1880,},
258 {"RTL-8168b/8111sb", 0x30, 0xff7e1880,},
259 {"RTL-8168b/8111sb", 0x38, 0xff7e1880,},
260 {"RTL-8168d/8111d", 0x28, 0xff7e1880,},
261 {"RTL-8168evl/8111evl", 0x2e, 0xff7e1880,},
262 {"RTL-8168/8111g", 0x4c, 0xff7e1880,},
263 {"RTL-8101e", 0x34, 0xff7e1880,},
264 {"RTL-8100e", 0x32, 0xff7e1880,},
267 enum _DescStatusBit {
288 static unsigned char rxdata[RX_BUF_LEN];
290 #define RTL8169_DESC_SIZE 16
292 #if ARCH_DMA_MINALIGN > 256
293 # define RTL8169_ALIGN ARCH_DMA_MINALIGN
295 # define RTL8169_ALIGN 256
299 * Warn if the cache-line size is larger than the descriptor size. In such
300 * cases the driver will likely fail because the CPU needs to flush the cache
301 * when requeuing RX buffers, therefore descriptors written by the hardware
304 * This can be fixed by defining CONFIG_SYS_NONCACHED_MEMORY which will cause
305 * the driver to allocate descriptors from a pool of non-cached memory.
307 #if RTL8169_DESC_SIZE < ARCH_DMA_MINALIGN
308 #if !defined(CONFIG_SYS_NONCACHED_MEMORY) && \
309 !defined(CONFIG_SYS_DCACHE_OFF) && !defined(CONFIG_X86)
310 #warning cache-line size is larger than descriptor size
315 * Create a static buffer of size RX_BUF_SZ for each TX Descriptor. All
316 * descriptors point to a part of this buffer.
318 DEFINE_ALIGN_BUFFER(u8, txb, NUM_TX_DESC * RX_BUF_SIZE, RTL8169_ALIGN);
321 * Create a static buffer of size RX_BUF_SZ for each RX Descriptor. All
322 * descriptors point to a part of this buffer.
324 DEFINE_ALIGN_BUFFER(u8, rxb, NUM_RX_DESC * RX_BUF_SIZE, RTL8169_ALIGN);
326 struct rtl8169_private {
328 void *mmio_addr; /* memory map physical address */
330 unsigned long cur_rx; /* Index into the Rx descriptor buffer of next Rx pkt. */
331 unsigned long cur_tx; /* Index into the Tx descriptor buffer of next Rx pkt. */
332 unsigned long dirty_tx;
333 struct TxDesc *TxDescArray; /* Index of 256-alignment Tx Descriptor buffer */
334 struct RxDesc *RxDescArray; /* Index of 256-alignment Rx Descriptor buffer */
335 unsigned char *RxBufferRings; /* Index of Rx Buffer */
336 unsigned char *RxBufferRing[NUM_RX_DESC]; /* Index of Rx Buffer array */
337 unsigned char *Tx_skbuff[NUM_TX_DESC];
340 static struct rtl8169_private *tpc;
342 static const u16 rtl8169_intr_mask =
343 SYSErr | PCSTimeout | RxUnderrun | RxOverflow | RxFIFOOver | TxErr |
345 static const unsigned int rtl8169_rx_config =
346 (RX_FIFO_THRESH << RxCfgFIFOShift) | (RX_DMA_BURST << RxCfgDMAShift);
348 static struct pci_device_id supported[] = {
349 { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8167) },
350 { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8168) },
351 { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8169) },
355 void mdio_write(int RegAddr, int value)
359 RTL_W32(PHYAR, 0x80000000 | (RegAddr & 0xFF) << 16 | value);
362 for (i = 2000; i > 0; i--) {
363 /* Check if the RTL8169 has completed writing to the specified MII register */
364 if (!(RTL_R32(PHYAR) & 0x80000000)) {
372 int mdio_read(int RegAddr)
376 RTL_W32(PHYAR, 0x0 | (RegAddr & 0xFF) << 16);
379 for (i = 2000; i > 0; i--) {
380 /* Check if the RTL8169 has completed retrieving data from the specified MII register */
381 if (RTL_R32(PHYAR) & 0x80000000) {
382 value = (int) (RTL_R32(PHYAR) & 0xFFFF);
391 static int rtl8169_init_board(unsigned long dev_iobase, const char *name)
397 printf ("%s\n", __FUNCTION__);
401 /* Soft reset the chip. */
402 RTL_W8(ChipCmd, CmdReset);
404 /* Check that the chip has finished the reset. */
405 for (i = 1000; i > 0; i--)
406 if ((RTL_R8(ChipCmd) & CmdReset) == 0)
411 /* identify chip attached to board */
412 tmp = RTL_R32(TxConfig);
413 tmp = ((tmp & 0x7c000000) + ((tmp & 0x00800000) << 2)) >> 24;
415 for (i = ARRAY_SIZE(rtl_chip_info) - 1; i >= 0; i--){
416 if (tmp == rtl_chip_info[i].version) {
422 /* if unknown chip, assume array element #0, original RTL-8169 in this case */
423 printf("PCI device %s: unknown chip version, assuming RTL-8169\n",
425 printf("PCI device: TxConfig = 0x%lX\n", (unsigned long) RTL_R32(TxConfig));
433 * TX and RX descriptors are 16 bytes. This causes problems with the cache
434 * maintenance on CPUs where the cache-line size exceeds the size of these
435 * descriptors. What will happen is that when the driver receives a packet
436 * it will be immediately requeued for the hardware to reuse. The CPU will
437 * therefore need to flush the cache-line containing the descriptor, which
438 * will cause all other descriptors in the same cache-line to be flushed
439 * along with it. If one of those descriptors had been written to by the
440 * device those changes (and the associated packet) will be lost.
442 * To work around this, we make use of non-cached memory if available. If
443 * descriptors are mapped uncached there's no need to manually flush them
444 * or invalidate them.
446 * Note that this only applies to descriptors. The packet data buffers do
447 * not have the same constraints since they are 1536 bytes large, so they
448 * are unlikely to share cache-lines.
450 static void *rtl_alloc_descs(unsigned int num)
452 size_t size = num * RTL8169_DESC_SIZE;
454 #ifdef CONFIG_SYS_NONCACHED_MEMORY
455 return (void *)noncached_alloc(size, RTL8169_ALIGN);
457 return memalign(RTL8169_ALIGN, size);
462 * Cache maintenance functions. These are simple wrappers around the more
463 * general purpose flush_cache() and invalidate_dcache_range() functions.
466 static void rtl_inval_rx_desc(struct RxDesc *desc)
468 #ifndef CONFIG_SYS_NONCACHED_MEMORY
469 unsigned long start = (unsigned long)desc & ~(ARCH_DMA_MINALIGN - 1);
470 unsigned long end = ALIGN(start + sizeof(*desc), ARCH_DMA_MINALIGN);
472 invalidate_dcache_range(start, end);
476 static void rtl_flush_rx_desc(struct RxDesc *desc)
478 #ifndef CONFIG_SYS_NONCACHED_MEMORY
479 flush_cache((unsigned long)desc, sizeof(*desc));
483 static void rtl_inval_tx_desc(struct TxDesc *desc)
485 #ifndef CONFIG_SYS_NONCACHED_MEMORY
486 unsigned long start = (unsigned long)desc & ~(ARCH_DMA_MINALIGN - 1);
487 unsigned long end = ALIGN(start + sizeof(*desc), ARCH_DMA_MINALIGN);
489 invalidate_dcache_range(start, end);
493 static void rtl_flush_tx_desc(struct TxDesc *desc)
495 #ifndef CONFIG_SYS_NONCACHED_MEMORY
496 flush_cache((unsigned long)desc, sizeof(*desc));
500 static void rtl_inval_buffer(void *buf, size_t size)
502 unsigned long start = (unsigned long)buf & ~(ARCH_DMA_MINALIGN - 1);
503 unsigned long end = ALIGN(start + size, ARCH_DMA_MINALIGN);
505 invalidate_dcache_range(start, end);
508 static void rtl_flush_buffer(void *buf, size_t size)
510 flush_cache((unsigned long)buf, size);
513 /**************************************************************************
514 RECV - Receive a frame
515 ***************************************************************************/
517 static int rtl_recv_common(struct udevice *dev, unsigned long dev_iobase,
520 static int rtl_recv_common(pci_dev_t dev, unsigned long dev_iobase,
524 /* return true if there's an ethernet packet ready to read */
525 /* nic->packet should contain data on return */
526 /* nic->packetlen should contain length of data */
530 #ifdef DEBUG_RTL8169_RX
531 printf ("%s\n", __FUNCTION__);
535 cur_rx = tpc->cur_rx;
537 rtl_inval_rx_desc(&tpc->RxDescArray[cur_rx]);
539 if ((le32_to_cpu(tpc->RxDescArray[cur_rx].status) & OWNbit) == 0) {
540 if (!(le32_to_cpu(tpc->RxDescArray[cur_rx].status) & RxRES)) {
541 length = (int) (le32_to_cpu(tpc->RxDescArray[cur_rx].
542 status) & 0x00001FFF) - 4;
544 rtl_inval_buffer(tpc->RxBufferRing[cur_rx], length);
545 memcpy(rxdata, tpc->RxBufferRing[cur_rx], length);
547 if (cur_rx == NUM_RX_DESC - 1)
548 tpc->RxDescArray[cur_rx].status =
549 cpu_to_le32((OWNbit | EORbit) + RX_BUF_SIZE);
551 tpc->RxDescArray[cur_rx].status =
552 cpu_to_le32(OWNbit + RX_BUF_SIZE);
554 tpc->RxDescArray[cur_rx].buf_addr = cpu_to_le32(
555 dm_pci_mem_to_phys(dev,
556 (pci_addr_t)(unsigned long)
557 tpc->RxBufferRing[cur_rx]));
559 tpc->RxDescArray[cur_rx].buf_addr = cpu_to_le32(
560 pci_mem_to_phys(dev, (pci_addr_t)(unsigned long)
561 tpc->RxBufferRing[cur_rx]));
563 rtl_flush_rx_desc(&tpc->RxDescArray[cur_rx]);
567 net_process_received_packet(rxdata, length);
573 cur_rx = (cur_rx + 1) % NUM_RX_DESC;
574 tpc->cur_rx = cur_rx;
578 ushort sts = RTL_R8(IntrStatus);
579 RTL_W8(IntrStatus, sts & ~(TxErr | RxErr | SYSErr));
580 udelay(100); /* wait */
582 tpc->cur_rx = cur_rx;
583 return (0); /* initially as this is called to flush the input */
587 int rtl8169_eth_recv(struct udevice *dev, int flags, uchar **packetp)
589 struct rtl8169_private *priv = dev_get_priv(dev);
591 return rtl_recv_common(dev, priv->iobase, packetp);
594 static int rtl_recv(struct eth_device *dev)
596 return rtl_recv_common((pci_dev_t)(unsigned long)dev->priv,
599 #endif /* nCONFIG_DM_ETH */
602 /**************************************************************************
603 SEND - Transmit a frame
604 ***************************************************************************/
606 static int rtl_send_common(struct udevice *dev, unsigned long dev_iobase,
607 void *packet, int length)
609 static int rtl_send_common(pci_dev_t dev, unsigned long dev_iobase,
610 void *packet, int length)
613 /* send the packet to destination */
617 int entry = tpc->cur_tx % NUM_TX_DESC;
621 #ifdef DEBUG_RTL8169_TX
622 int stime = currticks();
623 printf ("%s\n", __FUNCTION__);
624 printf("sending %d bytes\n", len);
629 /* point to the current txb incase multiple tx_rings are used */
630 ptxb = tpc->Tx_skbuff[entry * MAX_ETH_FRAME_SIZE];
631 memcpy(ptxb, (char *)packet, (int)length);
632 rtl_flush_buffer(ptxb, length);
634 while (len < ETH_ZLEN)
637 tpc->TxDescArray[entry].buf_Haddr = 0;
639 tpc->TxDescArray[entry].buf_addr = cpu_to_le32(
640 dm_pci_mem_to_phys(dev, (pci_addr_t)(unsigned long)ptxb));
642 tpc->TxDescArray[entry].buf_addr = cpu_to_le32(
643 pci_mem_to_phys(dev, (pci_addr_t)(unsigned long)ptxb));
645 if (entry != (NUM_TX_DESC - 1)) {
646 tpc->TxDescArray[entry].status =
647 cpu_to_le32((OWNbit | FSbit | LSbit) |
648 ((len > ETH_ZLEN) ? len : ETH_ZLEN));
650 tpc->TxDescArray[entry].status =
651 cpu_to_le32((OWNbit | EORbit | FSbit | LSbit) |
652 ((len > ETH_ZLEN) ? len : ETH_ZLEN));
654 rtl_flush_tx_desc(&tpc->TxDescArray[entry]);
655 RTL_W8(TxPoll, 0x40); /* set polling bit */
658 to = currticks() + TX_TIMEOUT;
660 rtl_inval_tx_desc(&tpc->TxDescArray[entry]);
661 } while ((le32_to_cpu(tpc->TxDescArray[entry].status) & OWNbit)
662 && (currticks() < to)); /* wait */
664 if (currticks() >= to) {
665 #ifdef DEBUG_RTL8169_TX
666 puts("tx timeout/error\n");
667 printf("%s elapsed time : %lu\n", __func__, currticks()-stime);
671 #ifdef DEBUG_RTL8169_TX
676 /* Delay to make net console (nc) work properly */
682 int rtl8169_eth_send(struct udevice *dev, void *packet, int length)
684 struct rtl8169_private *priv = dev_get_priv(dev);
686 return rtl_send_common(dev, priv->iobase, packet, length);
690 static int rtl_send(struct eth_device *dev, void *packet, int length)
692 return rtl_send_common((pci_dev_t)(unsigned long)dev->priv,
693 dev->iobase, packet, length);
697 static void rtl8169_set_rx_mode(void)
699 u32 mc_filter[2]; /* Multicast hash filter */
704 printf ("%s\n", __FUNCTION__);
708 /* Too many to filter perfectly -- accept all multicasts. */
709 rx_mode = AcceptBroadcast | AcceptMulticast | AcceptMyPhys;
710 mc_filter[1] = mc_filter[0] = 0xffffffff;
712 tmp = rtl8169_rx_config | rx_mode | (RTL_R32(RxConfig) &
713 rtl_chip_info[tpc->chipset].RxConfigMask);
715 RTL_W32(RxConfig, tmp);
716 RTL_W32(MAR0 + 0, mc_filter[0]);
717 RTL_W32(MAR0 + 4, mc_filter[1]);
721 static void rtl8169_hw_start(struct udevice *dev)
723 static void rtl8169_hw_start(pci_dev_t dev)
729 int stime = currticks();
730 printf ("%s\n", __FUNCTION__);
734 /* Soft reset the chip. */
735 RTL_W8(ChipCmd, CmdReset);
737 /* Check that the chip has finished the reset. */
738 for (i = 1000; i > 0; i--) {
739 if ((RTL_R8(ChipCmd) & CmdReset) == 0)
746 RTL_W8(Cfg9346, Cfg9346_Unlock);
748 /* RTL-8169sb/8110sb or previous version */
749 if (tpc->chipset <= 5)
750 RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb);
752 RTL_W8(EarlyTxThres, EarlyTxThld);
754 /* For gigabit rtl8169 */
755 RTL_W16(RxMaxSize, RxPacketMaxSize);
757 /* Set Rx Config register */
758 i = rtl8169_rx_config | (RTL_R32(RxConfig) &
759 rtl_chip_info[tpc->chipset].RxConfigMask);
760 RTL_W32(RxConfig, i);
762 /* Set DMA burst size and Interframe Gap Time */
763 RTL_W32(TxConfig, (TX_DMA_BURST << TxDMAShift) |
764 (InterFrameGap << TxInterFrameGapShift));
770 RTL_W32(TxDescStartAddrLow, dm_pci_mem_to_phys(dev,
771 (pci_addr_t)(unsigned long)tpc->TxDescArray));
773 RTL_W32(TxDescStartAddrLow, pci_mem_to_phys(dev,
774 (pci_addr_t)(unsigned long)tpc->TxDescArray));
776 RTL_W32(TxDescStartAddrHigh, (unsigned long)0);
778 RTL_W32(RxDescStartAddrLow, dm_pci_mem_to_phys(
779 dev, (pci_addr_t)(unsigned long)tpc->RxDescArray));
781 RTL_W32(RxDescStartAddrLow, pci_mem_to_phys(
782 dev, (pci_addr_t)(unsigned long)tpc->RxDescArray));
784 RTL_W32(RxDescStartAddrHigh, (unsigned long)0);
786 /* RTL-8169sc/8110sc or later version */
787 if (tpc->chipset > 5)
788 RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb);
790 RTL_W8(Cfg9346, Cfg9346_Lock);
793 RTL_W32(RxMissed, 0);
795 rtl8169_set_rx_mode();
797 /* no early-rx interrupts */
798 RTL_W16(MultiIntr, RTL_R16(MultiIntr) & 0xF000);
801 printf("%s elapsed time : %lu\n", __func__, currticks()-stime);
806 static void rtl8169_init_ring(struct udevice *dev)
808 static void rtl8169_init_ring(pci_dev_t dev)
814 int stime = currticks();
815 printf ("%s\n", __FUNCTION__);
821 memset(tpc->TxDescArray, 0x0, NUM_TX_DESC * sizeof(struct TxDesc));
822 memset(tpc->RxDescArray, 0x0, NUM_RX_DESC * sizeof(struct RxDesc));
824 for (i = 0; i < NUM_TX_DESC; i++) {
825 tpc->Tx_skbuff[i] = &txb[i];
828 for (i = 0; i < NUM_RX_DESC; i++) {
829 if (i == (NUM_RX_DESC - 1))
830 tpc->RxDescArray[i].status =
831 cpu_to_le32((OWNbit | EORbit) + RX_BUF_SIZE);
833 tpc->RxDescArray[i].status =
834 cpu_to_le32(OWNbit + RX_BUF_SIZE);
836 tpc->RxBufferRing[i] = &rxb[i * RX_BUF_SIZE];
838 tpc->RxDescArray[i].buf_addr = cpu_to_le32(dm_pci_mem_to_phys(
839 dev, (pci_addr_t)(unsigned long)tpc->RxBufferRing[i]));
841 tpc->RxDescArray[i].buf_addr = cpu_to_le32(pci_mem_to_phys(
842 dev, (pci_addr_t)(unsigned long)tpc->RxBufferRing[i]));
844 rtl_flush_rx_desc(&tpc->RxDescArray[i]);
848 printf("%s elapsed time : %lu\n", __func__, currticks()-stime);
853 static void rtl8169_common_start(struct udevice *dev, unsigned char *enetaddr,
854 unsigned long dev_iobase)
856 static void rtl8169_common_start(pci_dev_t dev, unsigned char *enetaddr,
857 unsigned long dev_iobase)
863 int stime = currticks();
864 printf ("%s\n", __FUNCTION__);
869 rtl8169_init_ring(dev);
870 rtl8169_hw_start(dev);
871 /* Construct a perfect filter frame with the mac address as first match
872 * and broadcast for all others */
873 for (i = 0; i < 192; i++)
876 txb[0] = enetaddr[0];
877 txb[1] = enetaddr[1];
878 txb[2] = enetaddr[2];
879 txb[3] = enetaddr[3];
880 txb[4] = enetaddr[4];
881 txb[5] = enetaddr[5];
884 printf("%s elapsed time : %lu\n", __func__, currticks()-stime);
889 static int rtl8169_eth_start(struct udevice *dev)
891 struct eth_pdata *plat = dev_get_platdata(dev);
892 struct rtl8169_private *priv = dev_get_priv(dev);
894 rtl8169_common_start(dev, plat->enetaddr, priv->iobase);
899 /**************************************************************************
900 RESET - Finish setting up the ethernet interface
901 ***************************************************************************/
902 static int rtl_reset(struct eth_device *dev, bd_t *bis)
904 rtl8169_common_start((pci_dev_t)(unsigned long)dev->priv,
905 dev->enetaddr, dev->iobase);
909 #endif /* nCONFIG_DM_ETH */
911 static void rtl_halt_common(unsigned long dev_iobase)
916 printf ("%s\n", __FUNCTION__);
921 /* Stop the chip's Tx and Rx DMA processes. */
922 RTL_W8(ChipCmd, 0x00);
924 /* Disable interrupts by clearing the interrupt mask. */
925 RTL_W16(IntrMask, 0x0000);
927 RTL_W32(RxMissed, 0);
929 for (i = 0; i < NUM_RX_DESC; i++) {
930 tpc->RxBufferRing[i] = NULL;
935 void rtl8169_eth_stop(struct udevice *dev)
937 struct rtl8169_private *priv = dev_get_priv(dev);
939 rtl_halt_common(priv->iobase);
942 /**************************************************************************
943 HALT - Turn off ethernet interface
944 ***************************************************************************/
945 static void rtl_halt(struct eth_device *dev)
947 rtl_halt_common(dev->iobase);
951 /**************************************************************************
952 INIT - Look for an adapter, this routine's visible to the outside
953 ***************************************************************************/
955 #define board_found 1
957 static int rtl_init(unsigned long dev_ioaddr, const char *name,
958 unsigned char *enetaddr)
960 static int board_idx = -1;
962 int option = -1, Cap10_100 = 0, Cap1000 = 0;
965 printf ("%s\n", __FUNCTION__);
971 /* point to private storage */
974 rc = rtl8169_init_board(ioaddr, name);
978 /* Get MAC address. FIXME: read EEPROM */
979 for (i = 0; i < MAC_ADDR_LEN; i++)
980 enetaddr[i] = RTL_R8(MAC0 + i);
983 printf("chipset = %d\n", tpc->chipset);
984 printf("MAC Address");
985 for (i = 0; i < MAC_ADDR_LEN; i++)
986 printf(":%02x", enetaddr[i]);
991 /* Print out some hardware info */
992 printf("%s: at ioaddr 0x%lx\n", name, ioaddr);
995 /* if TBI is not endbled */
996 if (!(RTL_R8(PHYstatus) & TBI_Enable)) {
997 int val = mdio_read(PHY_AUTO_NEGO_REG);
999 option = (board_idx >= MAX_UNITS) ? 0 : media[board_idx];
1000 /* Force RTL8169 in 10/100/1000 Full/Half mode. */
1002 #ifdef DEBUG_RTL8169
1003 printf("%s: Force-mode Enabled.\n", name);
1005 Cap10_100 = 0, Cap1000 = 0;
1008 Cap10_100 = PHY_Cap_10_Half;
1009 Cap1000 = PHY_Cap_Null;
1012 Cap10_100 = PHY_Cap_10_Full;
1013 Cap1000 = PHY_Cap_Null;
1016 Cap10_100 = PHY_Cap_100_Half;
1017 Cap1000 = PHY_Cap_Null;
1020 Cap10_100 = PHY_Cap_100_Full;
1021 Cap1000 = PHY_Cap_Null;
1024 Cap10_100 = PHY_Cap_Null;
1025 Cap1000 = PHY_Cap_1000_Full;
1030 mdio_write(PHY_AUTO_NEGO_REG, Cap10_100 | (val & 0x1F)); /* leave PHY_AUTO_NEGO_REG bit4:0 unchanged */
1031 mdio_write(PHY_1000_CTRL_REG, Cap1000);
1033 #ifdef DEBUG_RTL8169
1034 printf("%s: Auto-negotiation Enabled.\n",
1037 /* enable 10/100 Full/Half Mode, leave PHY_AUTO_NEGO_REG bit4:0 unchanged */
1038 mdio_write(PHY_AUTO_NEGO_REG,
1039 PHY_Cap_10_Half | PHY_Cap_10_Full |
1040 PHY_Cap_100_Half | PHY_Cap_100_Full |
1043 /* enable 1000 Full Mode */
1044 mdio_write(PHY_1000_CTRL_REG, PHY_Cap_1000_Full);
1048 /* Enable auto-negotiation and restart auto-nigotiation */
1049 mdio_write(PHY_CTRL_REG,
1050 PHY_Enable_Auto_Nego | PHY_Restart_Auto_Nego);
1053 /* wait for auto-negotiation process */
1054 for (i = 10000; i > 0; i--) {
1055 /* check if auto-negotiation complete */
1056 if (mdio_read(PHY_STAT_REG) & PHY_Auto_Nego_Comp) {
1058 option = RTL_R8(PHYstatus);
1059 if (option & _1000bpsF) {
1060 #ifdef DEBUG_RTL8169
1061 printf("%s: 1000Mbps Full-duplex operation.\n",
1065 #ifdef DEBUG_RTL8169
1066 printf("%s: %sMbps %s-duplex operation.\n",
1068 (option & _100bps) ? "100" :
1070 (option & FullDup) ? "Full" :
1078 } /* end for-loop to wait for auto-negotiation process */
1082 #ifdef DEBUG_RTL8169
1084 ("%s: 1000Mbps Full-duplex operation, TBI Link %s!\n",
1086 (RTL_R32(TBICSR) & TBILinkOK) ? "OK" : "Failed");
1091 tpc->RxDescArray = rtl_alloc_descs(NUM_RX_DESC);
1092 if (!tpc->RxDescArray)
1095 tpc->TxDescArray = rtl_alloc_descs(NUM_TX_DESC);
1096 if (!tpc->TxDescArray)
1102 #ifndef CONFIG_DM_ETH
1103 int rtl8169_initialize(bd_t *bis)
1106 int card_number = 0;
1107 struct eth_device *dev;
1112 unsigned int region;
1117 if ((devno = pci_find_devices(supported, idx++)) < 0)
1120 pci_read_config_word(devno, PCI_DEVICE_ID, &device);
1131 pci_read_config_dword(devno, PCI_BASE_ADDRESS_0 + (region * 4), &iobase);
1134 debug ("rtl8169: REALTEK RTL8169 @0x%x\n", iobase);
1136 dev = (struct eth_device *)malloc(sizeof *dev);
1138 printf("Can not allocate memory of rtl8169\n");
1142 memset(dev, 0, sizeof(*dev));
1143 sprintf (dev->name, "RTL8169#%d", card_number);
1145 dev->priv = (void *)(unsigned long)devno;
1146 dev->iobase = (int)pci_mem_to_phys(devno, iobase);
1148 dev->init = rtl_reset;
1149 dev->halt = rtl_halt;
1150 dev->send = rtl_send;
1151 dev->recv = rtl_recv;
1153 err = rtl_init(dev->iobase, dev->name, dev->enetaddr);
1155 printf(pr_fmt("failed to initialize card: %d\n"), err);
1168 #ifdef CONFIG_DM_ETH
1169 static int rtl8169_eth_probe(struct udevice *dev)
1171 struct pci_child_platdata *pplat = dev_get_parent_platdata(dev);
1172 struct rtl8169_private *priv = dev_get_priv(dev);
1173 struct eth_pdata *plat = dev_get_platdata(dev);
1178 debug("rtl8169: REALTEK RTL8169 @0x%x\n", iobase);
1179 switch (pplat->device) {
1187 dm_pci_read_config32(dev, PCI_BASE_ADDRESS_0 + region * 4, &iobase);
1189 priv->iobase = (int)dm_pci_mem_to_phys(dev, iobase);
1191 ret = rtl_init(priv->iobase, dev->name, plat->enetaddr);
1193 printf(pr_fmt("failed to initialize card: %d\n"), ret);
1200 static const struct eth_ops rtl8169_eth_ops = {
1201 .start = rtl8169_eth_start,
1202 .send = rtl8169_eth_send,
1203 .recv = rtl8169_eth_recv,
1204 .stop = rtl8169_eth_stop,
1207 static const struct udevice_id rtl8169_eth_ids[] = {
1208 { .compatible = "realtek,rtl8169" },
1212 U_BOOT_DRIVER(eth_rtl8169) = {
1213 .name = "eth_rtl8169",
1215 .of_match = rtl8169_eth_ids,
1216 .probe = rtl8169_eth_probe,
1217 .ops = &rtl8169_eth_ops,
1218 .priv_auto_alloc_size = sizeof(struct rtl8169_private),
1219 .platdata_auto_alloc_size = sizeof(struct eth_pdata),
1222 U_BOOT_PCI_DEVICE(eth_rtl8169, supported);