1 // SPDX-License-Identifier: GPL-2.0+
3 * rtl8169.c : U-Boot driver for the RealTek RTL8169
5 * Masami Komiya (mkomiya@sonare.it)
7 * Most part is taken from r8169.c of etherboot
11 /**************************************************************************
12 * r8169.c: Etherboot device driver for the RealTek RTL-8169 Gigabit
13 * Written 2003 by Timothy Legge <tlegge@rogers.com>
15 * Portions of this code based on:
16 * r8169.c: A RealTek RTL-8169 Gigabit Ethernet driver
17 * for Linux kernel 2.4.x.
19 * Written 2002 ShuChen <shuchen@realtek.com.tw>
20 * See Linux Driver for full information
22 * Linux Driver Version 1.27a, 10.02.2002
25 * Jean Chen of RealTek Semiconductor Corp. for
26 * providing the evaluation NIC used to develop
27 * this driver. RealTek's support for Etherboot
33 * v1.0 11-26-2003 timlegge Initial port of Linux driver
34 * v1.5 01-17-2004 timlegge Initial driver output cleanup
36 * Indent Options: indent -kr -i8
37 ***************************************************************************/
39 * 26 August 2006 Mihai Georgian <u-boot@linuxnotincluded.org.uk>
40 * Modified to use le32_to_cpu and cpu_to_le32 properly
55 #undef DEBUG_RTL8169_TX
56 #undef DEBUG_RTL8169_RX
58 #define drv_version "v1.5"
59 #define drv_date "01-17-2004"
61 static unsigned long ioaddr;
63 /* Condensed operations for readability. */
64 #define currticks() get_timer(0)
68 static int media[MAX_UNITS] = { -1, -1, -1, -1, -1, -1, -1, -1 };
70 /* MAC address length*/
71 #define MAC_ADDR_LEN 6
73 /* max supported gigabit ethernet frame size -- must be at least (dev->mtu+14+4).*/
74 #define MAX_ETH_FRAME_SIZE 1536
76 #define TX_FIFO_THRESH 256 /* In bytes */
78 #define RX_FIFO_THRESH 7 /* 7 means NO threshold, Rx buffer level before first PCI xfer. */
79 #define RX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */
80 #define TX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */
81 #define EarlyTxThld 0x3F /* 0x3F means NO early transmit */
82 #define RxPacketMaxSize 0x0800 /* Maximum size supported is 16K-1 */
83 #define InterFrameGap 0x03 /* 3 means InterFrameGap = the shortest one */
85 #define NUM_TX_DESC 1 /* Number of Tx descriptor registers */
86 #ifdef CONFIG_SYS_RX_ETH_BUFFER
87 #define NUM_RX_DESC CONFIG_SYS_RX_ETH_BUFFER
89 #define NUM_RX_DESC 4 /* Number of Rx descriptor registers */
91 #define RX_BUF_SIZE 1536 /* Rx Buffer size */
92 #define RX_BUF_LEN 8192
94 #define RTL_MIN_IO_SIZE 0x80
95 #define TX_TIMEOUT (6*HZ)
97 /* write/read MMIO register. Notice: {read,write}[wl] do the necessary swapping */
98 #define RTL_W8(reg, val8) writeb((val8), ioaddr + (reg))
99 #define RTL_W16(reg, val16) writew((val16), ioaddr + (reg))
100 #define RTL_W32(reg, val32) writel((val32), ioaddr + (reg))
101 #define RTL_R8(reg) readb(ioaddr + (reg))
102 #define RTL_R16(reg) readw(ioaddr + (reg))
103 #define RTL_R32(reg) readl(ioaddr + (reg))
105 #define bus_to_phys(a) pci_mem_to_phys((pci_dev_t)(unsigned long)dev->priv, \
106 (pci_addr_t)(unsigned long)a)
107 #define phys_to_bus(a) pci_phys_to_mem((pci_dev_t)(unsigned long)dev->priv, \
110 enum RTL8169_registers {
111 MAC0 = 0, /* Ethernet hardware address. */
112 MAR0 = 8, /* Multicast filter. */
113 TxDescStartAddrLow = 0x20,
114 TxDescStartAddrHigh = 0x24,
115 TxHDescStartAddrLow = 0x28,
116 TxHDescStartAddrHigh = 0x2c,
141 RxDescStartAddrLow = 0xE4,
142 RxDescStartAddrHigh = 0xE8,
145 FuncEventMask = 0xF4,
146 FuncPresetState = 0xF8,
147 FuncForceEvent = 0xFC,
150 enum RTL8169_register_content {
151 /*InterruptStatusBits */
155 TxDescUnavail = 0x80,
178 Cfg9346_Unlock = 0xC0,
183 AcceptBroadcast = 0x08,
184 AcceptMulticast = 0x04,
186 AcceptAllPhys = 0x01,
193 TxInterFrameGapShift = 24,
194 TxDMAShift = 8, /* DMA burst value (0-7) is shift this many bits */
196 /*rtl8169_PHYstatus */
206 /*GIGABIT_PHY_registers */
209 PHY_AUTO_NEGO_REG = 4,
210 PHY_1000_CTRL_REG = 9,
212 /*GIGABIT_PHY_REG_BIT */
213 PHY_Restart_Auto_Nego = 0x0200,
214 PHY_Enable_Auto_Nego = 0x1000,
216 /* PHY_STAT_REG = 1; */
217 PHY_Auto_Nego_Comp = 0x0020,
219 /* PHY_AUTO_NEGO_REG = 4; */
220 PHY_Cap_10_Half = 0x0020,
221 PHY_Cap_10_Full = 0x0040,
222 PHY_Cap_100_Half = 0x0080,
223 PHY_Cap_100_Full = 0x0100,
225 /* PHY_1000_CTRL_REG = 9; */
226 PHY_Cap_1000_Full = 0x0200,
238 TBILinkOK = 0x02000000,
243 u8 version; /* depend on RTL8169 docs */
244 u32 RxConfigMask; /* should clear the bits supported by this chip */
245 } rtl_chip_info[] = {
246 {"RTL-8169", 0x00, 0xff7e1880,},
247 {"RTL-8169", 0x04, 0xff7e1880,},
248 {"RTL-8169", 0x00, 0xff7e1880,},
249 {"RTL-8169s/8110s", 0x02, 0xff7e1880,},
250 {"RTL-8169s/8110s", 0x04, 0xff7e1880,},
251 {"RTL-8169sb/8110sb", 0x10, 0xff7e1880,},
252 {"RTL-8169sc/8110sc", 0x18, 0xff7e1880,},
253 {"RTL-8168b/8111sb", 0x30, 0xff7e1880,},
254 {"RTL-8168b/8111sb", 0x38, 0xff7e1880,},
255 {"RTL-8168d/8111d", 0x28, 0xff7e1880,},
256 {"RTL-8168evl/8111evl", 0x2e, 0xff7e1880,},
257 {"RTL-8168/8111g", 0x4c, 0xff7e1880,},
258 {"RTL-8101e", 0x34, 0xff7e1880,},
259 {"RTL-8100e", 0x32, 0xff7e1880,},
262 enum _DescStatusBit {
283 static unsigned char rxdata[RX_BUF_LEN];
285 #define RTL8169_DESC_SIZE 16
287 #if ARCH_DMA_MINALIGN > 256
288 # define RTL8169_ALIGN ARCH_DMA_MINALIGN
290 # define RTL8169_ALIGN 256
294 * Warn if the cache-line size is larger than the descriptor size. In such
295 * cases the driver will likely fail because the CPU needs to flush the cache
296 * when requeuing RX buffers, therefore descriptors written by the hardware
299 * This can be fixed by defining CONFIG_SYS_NONCACHED_MEMORY which will cause
300 * the driver to allocate descriptors from a pool of non-cached memory.
302 #if RTL8169_DESC_SIZE < ARCH_DMA_MINALIGN
303 #if !defined(CONFIG_SYS_NONCACHED_MEMORY) && \
304 !defined(CONFIG_SYS_DCACHE_OFF) && !defined(CONFIG_X86)
305 #warning cache-line size is larger than descriptor size
310 * Create a static buffer of size RX_BUF_SZ for each TX Descriptor. All
311 * descriptors point to a part of this buffer.
313 DEFINE_ALIGN_BUFFER(u8, txb, NUM_TX_DESC * RX_BUF_SIZE, RTL8169_ALIGN);
316 * Create a static buffer of size RX_BUF_SZ for each RX Descriptor. All
317 * descriptors point to a part of this buffer.
319 DEFINE_ALIGN_BUFFER(u8, rxb, NUM_RX_DESC * RX_BUF_SIZE, RTL8169_ALIGN);
321 struct rtl8169_private {
323 void *mmio_addr; /* memory map physical address */
325 unsigned long cur_rx; /* Index into the Rx descriptor buffer of next Rx pkt. */
326 unsigned long cur_tx; /* Index into the Tx descriptor buffer of next Rx pkt. */
327 unsigned long dirty_tx;
328 struct TxDesc *TxDescArray; /* Index of 256-alignment Tx Descriptor buffer */
329 struct RxDesc *RxDescArray; /* Index of 256-alignment Rx Descriptor buffer */
330 unsigned char *RxBufferRings; /* Index of Rx Buffer */
331 unsigned char *RxBufferRing[NUM_RX_DESC]; /* Index of Rx Buffer array */
332 unsigned char *Tx_skbuff[NUM_TX_DESC];
335 static struct rtl8169_private *tpc;
337 static const unsigned int rtl8169_rx_config =
338 (RX_FIFO_THRESH << RxCfgFIFOShift) | (RX_DMA_BURST << RxCfgDMAShift);
340 static struct pci_device_id supported[] = {
341 { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8167) },
342 { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8168) },
343 { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8169) },
347 void mdio_write(int RegAddr, int value)
351 RTL_W32(PHYAR, 0x80000000 | (RegAddr & 0xFF) << 16 | value);
354 for (i = 2000; i > 0; i--) {
355 /* Check if the RTL8169 has completed writing to the specified MII register */
356 if (!(RTL_R32(PHYAR) & 0x80000000)) {
364 int mdio_read(int RegAddr)
368 RTL_W32(PHYAR, 0x0 | (RegAddr & 0xFF) << 16);
371 for (i = 2000; i > 0; i--) {
372 /* Check if the RTL8169 has completed retrieving data from the specified MII register */
373 if (RTL_R32(PHYAR) & 0x80000000) {
374 value = (int) (RTL_R32(PHYAR) & 0xFFFF);
383 static int rtl8169_init_board(unsigned long dev_iobase, const char *name)
389 printf ("%s\n", __FUNCTION__);
393 /* Soft reset the chip. */
394 RTL_W8(ChipCmd, CmdReset);
396 /* Check that the chip has finished the reset. */
397 for (i = 1000; i > 0; i--)
398 if ((RTL_R8(ChipCmd) & CmdReset) == 0)
403 /* identify chip attached to board */
404 tmp = RTL_R32(TxConfig);
405 tmp = ((tmp & 0x7c000000) + ((tmp & 0x00800000) << 2)) >> 24;
407 for (i = ARRAY_SIZE(rtl_chip_info) - 1; i >= 0; i--){
408 if (tmp == rtl_chip_info[i].version) {
414 /* if unknown chip, assume array element #0, original RTL-8169 in this case */
415 printf("PCI device %s: unknown chip version, assuming RTL-8169\n",
417 printf("PCI device: TxConfig = 0x%lX\n", (unsigned long) RTL_R32(TxConfig));
425 * TX and RX descriptors are 16 bytes. This causes problems with the cache
426 * maintenance on CPUs where the cache-line size exceeds the size of these
427 * descriptors. What will happen is that when the driver receives a packet
428 * it will be immediately requeued for the hardware to reuse. The CPU will
429 * therefore need to flush the cache-line containing the descriptor, which
430 * will cause all other descriptors in the same cache-line to be flushed
431 * along with it. If one of those descriptors had been written to by the
432 * device those changes (and the associated packet) will be lost.
434 * To work around this, we make use of non-cached memory if available. If
435 * descriptors are mapped uncached there's no need to manually flush them
436 * or invalidate them.
438 * Note that this only applies to descriptors. The packet data buffers do
439 * not have the same constraints since they are 1536 bytes large, so they
440 * are unlikely to share cache-lines.
442 static void *rtl_alloc_descs(unsigned int num)
444 size_t size = num * RTL8169_DESC_SIZE;
446 #ifdef CONFIG_SYS_NONCACHED_MEMORY
447 return (void *)noncached_alloc(size, RTL8169_ALIGN);
449 return memalign(RTL8169_ALIGN, size);
454 * Cache maintenance functions. These are simple wrappers around the more
455 * general purpose flush_cache() and invalidate_dcache_range() functions.
458 static void rtl_inval_rx_desc(struct RxDesc *desc)
460 #ifndef CONFIG_SYS_NONCACHED_MEMORY
461 unsigned long start = (unsigned long)desc & ~(ARCH_DMA_MINALIGN - 1);
462 unsigned long end = ALIGN(start + sizeof(*desc), ARCH_DMA_MINALIGN);
464 invalidate_dcache_range(start, end);
468 static void rtl_flush_rx_desc(struct RxDesc *desc)
470 #ifndef CONFIG_SYS_NONCACHED_MEMORY
471 flush_cache((unsigned long)desc, sizeof(*desc));
475 static void rtl_inval_tx_desc(struct TxDesc *desc)
477 #ifndef CONFIG_SYS_NONCACHED_MEMORY
478 unsigned long start = (unsigned long)desc & ~(ARCH_DMA_MINALIGN - 1);
479 unsigned long end = ALIGN(start + sizeof(*desc), ARCH_DMA_MINALIGN);
481 invalidate_dcache_range(start, end);
485 static void rtl_flush_tx_desc(struct TxDesc *desc)
487 #ifndef CONFIG_SYS_NONCACHED_MEMORY
488 flush_cache((unsigned long)desc, sizeof(*desc));
492 static void rtl_inval_buffer(void *buf, size_t size)
494 unsigned long start = (unsigned long)buf & ~(ARCH_DMA_MINALIGN - 1);
495 unsigned long end = ALIGN(start + size, ARCH_DMA_MINALIGN);
497 invalidate_dcache_range(start, end);
500 static void rtl_flush_buffer(void *buf, size_t size)
502 flush_cache((unsigned long)buf, size);
505 /**************************************************************************
506 RECV - Receive a frame
507 ***************************************************************************/
509 static int rtl_recv_common(struct udevice *dev, unsigned long dev_iobase,
512 static int rtl_recv_common(pci_dev_t dev, unsigned long dev_iobase,
516 /* return true if there's an ethernet packet ready to read */
517 /* nic->packet should contain data on return */
518 /* nic->packetlen should contain length of data */
522 #ifdef DEBUG_RTL8169_RX
523 printf ("%s\n", __FUNCTION__);
527 cur_rx = tpc->cur_rx;
529 rtl_inval_rx_desc(&tpc->RxDescArray[cur_rx]);
531 if ((le32_to_cpu(tpc->RxDescArray[cur_rx].status) & OWNbit) == 0) {
532 if (!(le32_to_cpu(tpc->RxDescArray[cur_rx].status) & RxRES)) {
533 length = (int) (le32_to_cpu(tpc->RxDescArray[cur_rx].
534 status) & 0x00001FFF) - 4;
536 rtl_inval_buffer(tpc->RxBufferRing[cur_rx], length);
537 memcpy(rxdata, tpc->RxBufferRing[cur_rx], length);
539 if (cur_rx == NUM_RX_DESC - 1)
540 tpc->RxDescArray[cur_rx].status =
541 cpu_to_le32((OWNbit | EORbit) + RX_BUF_SIZE);
543 tpc->RxDescArray[cur_rx].status =
544 cpu_to_le32(OWNbit + RX_BUF_SIZE);
546 tpc->RxDescArray[cur_rx].buf_addr = cpu_to_le32(
547 dm_pci_mem_to_phys(dev,
548 (pci_addr_t)(unsigned long)
549 tpc->RxBufferRing[cur_rx]));
551 tpc->RxDescArray[cur_rx].buf_addr = cpu_to_le32(
552 pci_mem_to_phys(dev, (pci_addr_t)(unsigned long)
553 tpc->RxBufferRing[cur_rx]));
555 rtl_flush_rx_desc(&tpc->RxDescArray[cur_rx]);
559 net_process_received_packet(rxdata, length);
565 cur_rx = (cur_rx + 1) % NUM_RX_DESC;
566 tpc->cur_rx = cur_rx;
570 ushort sts = RTL_R8(IntrStatus);
571 RTL_W8(IntrStatus, sts & ~(TxErr | RxErr | SYSErr));
572 udelay(100); /* wait */
574 tpc->cur_rx = cur_rx;
575 return (0); /* initially as this is called to flush the input */
579 int rtl8169_eth_recv(struct udevice *dev, int flags, uchar **packetp)
581 struct rtl8169_private *priv = dev_get_priv(dev);
583 return rtl_recv_common(dev, priv->iobase, packetp);
586 static int rtl_recv(struct eth_device *dev)
588 return rtl_recv_common((pci_dev_t)(unsigned long)dev->priv,
591 #endif /* nCONFIG_DM_ETH */
594 /**************************************************************************
595 SEND - Transmit a frame
596 ***************************************************************************/
598 static int rtl_send_common(struct udevice *dev, unsigned long dev_iobase,
599 void *packet, int length)
601 static int rtl_send_common(pci_dev_t dev, unsigned long dev_iobase,
602 void *packet, int length)
605 /* send the packet to destination */
609 int entry = tpc->cur_tx % NUM_TX_DESC;
613 #ifdef DEBUG_RTL8169_TX
614 int stime = currticks();
615 printf ("%s\n", __FUNCTION__);
616 printf("sending %d bytes\n", len);
621 /* point to the current txb incase multiple tx_rings are used */
622 ptxb = tpc->Tx_skbuff[entry * MAX_ETH_FRAME_SIZE];
623 memcpy(ptxb, (char *)packet, (int)length);
625 while (len < ETH_ZLEN)
628 rtl_flush_buffer(ptxb, ALIGN(len, RTL8169_ALIGN));
630 tpc->TxDescArray[entry].buf_Haddr = 0;
632 tpc->TxDescArray[entry].buf_addr = cpu_to_le32(
633 dm_pci_mem_to_phys(dev, (pci_addr_t)(unsigned long)ptxb));
635 tpc->TxDescArray[entry].buf_addr = cpu_to_le32(
636 pci_mem_to_phys(dev, (pci_addr_t)(unsigned long)ptxb));
638 if (entry != (NUM_TX_DESC - 1)) {
639 tpc->TxDescArray[entry].status =
640 cpu_to_le32((OWNbit | FSbit | LSbit) |
641 ((len > ETH_ZLEN) ? len : ETH_ZLEN));
643 tpc->TxDescArray[entry].status =
644 cpu_to_le32((OWNbit | EORbit | FSbit | LSbit) |
645 ((len > ETH_ZLEN) ? len : ETH_ZLEN));
647 rtl_flush_tx_desc(&tpc->TxDescArray[entry]);
648 RTL_W8(TxPoll, 0x40); /* set polling bit */
651 to = currticks() + TX_TIMEOUT;
653 rtl_inval_tx_desc(&tpc->TxDescArray[entry]);
654 } while ((le32_to_cpu(tpc->TxDescArray[entry].status) & OWNbit)
655 && (currticks() < to)); /* wait */
657 if (currticks() >= to) {
658 #ifdef DEBUG_RTL8169_TX
659 puts("tx timeout/error\n");
660 printf("%s elapsed time : %lu\n", __func__, currticks()-stime);
664 #ifdef DEBUG_RTL8169_TX
669 /* Delay to make net console (nc) work properly */
675 int rtl8169_eth_send(struct udevice *dev, void *packet, int length)
677 struct rtl8169_private *priv = dev_get_priv(dev);
679 return rtl_send_common(dev, priv->iobase, packet, length);
683 static int rtl_send(struct eth_device *dev, void *packet, int length)
685 return rtl_send_common((pci_dev_t)(unsigned long)dev->priv,
686 dev->iobase, packet, length);
690 static void rtl8169_set_rx_mode(void)
692 u32 mc_filter[2]; /* Multicast hash filter */
697 printf ("%s\n", __FUNCTION__);
701 /* Too many to filter perfectly -- accept all multicasts. */
702 rx_mode = AcceptBroadcast | AcceptMulticast | AcceptMyPhys;
703 mc_filter[1] = mc_filter[0] = 0xffffffff;
705 tmp = rtl8169_rx_config | rx_mode | (RTL_R32(RxConfig) &
706 rtl_chip_info[tpc->chipset].RxConfigMask);
708 RTL_W32(RxConfig, tmp);
709 RTL_W32(MAR0 + 0, mc_filter[0]);
710 RTL_W32(MAR0 + 4, mc_filter[1]);
714 static void rtl8169_hw_start(struct udevice *dev)
716 static void rtl8169_hw_start(pci_dev_t dev)
722 int stime = currticks();
723 printf ("%s\n", __FUNCTION__);
727 /* Soft reset the chip. */
728 RTL_W8(ChipCmd, CmdReset);
730 /* Check that the chip has finished the reset. */
731 for (i = 1000; i > 0; i--) {
732 if ((RTL_R8(ChipCmd) & CmdReset) == 0)
739 RTL_W8(Cfg9346, Cfg9346_Unlock);
741 /* RTL-8169sb/8110sb or previous version */
742 if (tpc->chipset <= 5)
743 RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb);
745 RTL_W8(EarlyTxThres, EarlyTxThld);
747 /* For gigabit rtl8169 */
748 RTL_W16(RxMaxSize, RxPacketMaxSize);
750 /* Set Rx Config register */
751 i = rtl8169_rx_config | (RTL_R32(RxConfig) &
752 rtl_chip_info[tpc->chipset].RxConfigMask);
753 RTL_W32(RxConfig, i);
755 /* Set DMA burst size and Interframe Gap Time */
756 RTL_W32(TxConfig, (TX_DMA_BURST << TxDMAShift) |
757 (InterFrameGap << TxInterFrameGapShift));
763 RTL_W32(TxDescStartAddrLow, dm_pci_mem_to_phys(dev,
764 (pci_addr_t)(unsigned long)tpc->TxDescArray));
766 RTL_W32(TxDescStartAddrLow, pci_mem_to_phys(dev,
767 (pci_addr_t)(unsigned long)tpc->TxDescArray));
769 RTL_W32(TxDescStartAddrHigh, (unsigned long)0);
771 RTL_W32(RxDescStartAddrLow, dm_pci_mem_to_phys(
772 dev, (pci_addr_t)(unsigned long)tpc->RxDescArray));
774 RTL_W32(RxDescStartAddrLow, pci_mem_to_phys(
775 dev, (pci_addr_t)(unsigned long)tpc->RxDescArray));
777 RTL_W32(RxDescStartAddrHigh, (unsigned long)0);
779 /* RTL-8169sc/8110sc or later version */
780 if (tpc->chipset > 5)
781 RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb);
783 RTL_W8(Cfg9346, Cfg9346_Lock);
786 RTL_W32(RxMissed, 0);
788 rtl8169_set_rx_mode();
790 /* no early-rx interrupts */
791 RTL_W16(MultiIntr, RTL_R16(MultiIntr) & 0xF000);
794 printf("%s elapsed time : %lu\n", __func__, currticks()-stime);
799 static void rtl8169_init_ring(struct udevice *dev)
801 static void rtl8169_init_ring(pci_dev_t dev)
807 int stime = currticks();
808 printf ("%s\n", __FUNCTION__);
814 memset(tpc->TxDescArray, 0x0, NUM_TX_DESC * sizeof(struct TxDesc));
815 memset(tpc->RxDescArray, 0x0, NUM_RX_DESC * sizeof(struct RxDesc));
817 for (i = 0; i < NUM_TX_DESC; i++) {
818 tpc->Tx_skbuff[i] = &txb[i];
821 for (i = 0; i < NUM_RX_DESC; i++) {
822 if (i == (NUM_RX_DESC - 1))
823 tpc->RxDescArray[i].status =
824 cpu_to_le32((OWNbit | EORbit) + RX_BUF_SIZE);
826 tpc->RxDescArray[i].status =
827 cpu_to_le32(OWNbit + RX_BUF_SIZE);
829 tpc->RxBufferRing[i] = &rxb[i * RX_BUF_SIZE];
831 tpc->RxDescArray[i].buf_addr = cpu_to_le32(dm_pci_mem_to_phys(
832 dev, (pci_addr_t)(unsigned long)tpc->RxBufferRing[i]));
834 tpc->RxDescArray[i].buf_addr = cpu_to_le32(pci_mem_to_phys(
835 dev, (pci_addr_t)(unsigned long)tpc->RxBufferRing[i]));
837 rtl_flush_rx_desc(&tpc->RxDescArray[i]);
841 printf("%s elapsed time : %lu\n", __func__, currticks()-stime);
846 static void rtl8169_common_start(struct udevice *dev, unsigned char *enetaddr,
847 unsigned long dev_iobase)
849 static void rtl8169_common_start(pci_dev_t dev, unsigned char *enetaddr,
850 unsigned long dev_iobase)
856 int stime = currticks();
857 printf ("%s\n", __FUNCTION__);
862 rtl8169_init_ring(dev);
863 rtl8169_hw_start(dev);
864 /* Construct a perfect filter frame with the mac address as first match
865 * and broadcast for all others */
866 for (i = 0; i < 192; i++)
869 txb[0] = enetaddr[0];
870 txb[1] = enetaddr[1];
871 txb[2] = enetaddr[2];
872 txb[3] = enetaddr[3];
873 txb[4] = enetaddr[4];
874 txb[5] = enetaddr[5];
877 printf("%s elapsed time : %lu\n", __func__, currticks()-stime);
882 static int rtl8169_eth_start(struct udevice *dev)
884 struct eth_pdata *plat = dev_get_platdata(dev);
885 struct rtl8169_private *priv = dev_get_priv(dev);
887 rtl8169_common_start(dev, plat->enetaddr, priv->iobase);
892 /**************************************************************************
893 RESET - Finish setting up the ethernet interface
894 ***************************************************************************/
895 static int rtl_reset(struct eth_device *dev, bd_t *bis)
897 rtl8169_common_start((pci_dev_t)(unsigned long)dev->priv,
898 dev->enetaddr, dev->iobase);
902 #endif /* nCONFIG_DM_ETH */
904 static void rtl_halt_common(unsigned long dev_iobase)
909 printf ("%s\n", __FUNCTION__);
914 /* Stop the chip's Tx and Rx DMA processes. */
915 RTL_W8(ChipCmd, 0x00);
917 /* Disable interrupts by clearing the interrupt mask. */
918 RTL_W16(IntrMask, 0x0000);
920 RTL_W32(RxMissed, 0);
922 for (i = 0; i < NUM_RX_DESC; i++) {
923 tpc->RxBufferRing[i] = NULL;
928 void rtl8169_eth_stop(struct udevice *dev)
930 struct rtl8169_private *priv = dev_get_priv(dev);
932 rtl_halt_common(priv->iobase);
935 /**************************************************************************
936 HALT - Turn off ethernet interface
937 ***************************************************************************/
938 static void rtl_halt(struct eth_device *dev)
940 rtl_halt_common(dev->iobase);
944 /**************************************************************************
945 INIT - Look for an adapter, this routine's visible to the outside
946 ***************************************************************************/
948 #define board_found 1
950 static int rtl_init(unsigned long dev_ioaddr, const char *name,
951 unsigned char *enetaddr)
953 static int board_idx = -1;
955 int option = -1, Cap10_100 = 0, Cap1000 = 0;
958 printf ("%s\n", __FUNCTION__);
964 /* point to private storage */
967 rc = rtl8169_init_board(ioaddr, name);
971 /* Get MAC address. FIXME: read EEPROM */
972 for (i = 0; i < MAC_ADDR_LEN; i++)
973 enetaddr[i] = RTL_R8(MAC0 + i);
976 printf("chipset = %d\n", tpc->chipset);
977 printf("MAC Address");
978 for (i = 0; i < MAC_ADDR_LEN; i++)
979 printf(":%02x", enetaddr[i]);
984 /* Print out some hardware info */
985 printf("%s: at ioaddr 0x%lx\n", name, ioaddr);
988 /* if TBI is not endbled */
989 if (!(RTL_R8(PHYstatus) & TBI_Enable)) {
990 int val = mdio_read(PHY_AUTO_NEGO_REG);
992 option = (board_idx >= MAX_UNITS) ? 0 : media[board_idx];
993 /* Force RTL8169 in 10/100/1000 Full/Half mode. */
996 printf("%s: Force-mode Enabled.\n", name);
998 Cap10_100 = 0, Cap1000 = 0;
1001 Cap10_100 = PHY_Cap_10_Half;
1002 Cap1000 = PHY_Cap_Null;
1005 Cap10_100 = PHY_Cap_10_Full;
1006 Cap1000 = PHY_Cap_Null;
1009 Cap10_100 = PHY_Cap_100_Half;
1010 Cap1000 = PHY_Cap_Null;
1013 Cap10_100 = PHY_Cap_100_Full;
1014 Cap1000 = PHY_Cap_Null;
1017 Cap10_100 = PHY_Cap_Null;
1018 Cap1000 = PHY_Cap_1000_Full;
1023 mdio_write(PHY_AUTO_NEGO_REG, Cap10_100 | (val & 0x1F)); /* leave PHY_AUTO_NEGO_REG bit4:0 unchanged */
1024 mdio_write(PHY_1000_CTRL_REG, Cap1000);
1026 #ifdef DEBUG_RTL8169
1027 printf("%s: Auto-negotiation Enabled.\n",
1030 /* enable 10/100 Full/Half Mode, leave PHY_AUTO_NEGO_REG bit4:0 unchanged */
1031 mdio_write(PHY_AUTO_NEGO_REG,
1032 PHY_Cap_10_Half | PHY_Cap_10_Full |
1033 PHY_Cap_100_Half | PHY_Cap_100_Full |
1036 /* enable 1000 Full Mode */
1037 mdio_write(PHY_1000_CTRL_REG, PHY_Cap_1000_Full);
1041 /* Enable auto-negotiation and restart auto-nigotiation */
1042 mdio_write(PHY_CTRL_REG,
1043 PHY_Enable_Auto_Nego | PHY_Restart_Auto_Nego);
1046 /* wait for auto-negotiation process */
1047 for (i = 10000; i > 0; i--) {
1048 /* check if auto-negotiation complete */
1049 if (mdio_read(PHY_STAT_REG) & PHY_Auto_Nego_Comp) {
1051 option = RTL_R8(PHYstatus);
1052 if (option & _1000bpsF) {
1053 #ifdef DEBUG_RTL8169
1054 printf("%s: 1000Mbps Full-duplex operation.\n",
1058 #ifdef DEBUG_RTL8169
1059 printf("%s: %sMbps %s-duplex operation.\n",
1061 (option & _100bps) ? "100" :
1063 (option & FullDup) ? "Full" :
1071 } /* end for-loop to wait for auto-negotiation process */
1075 #ifdef DEBUG_RTL8169
1077 ("%s: 1000Mbps Full-duplex operation, TBI Link %s!\n",
1079 (RTL_R32(TBICSR) & TBILinkOK) ? "OK" : "Failed");
1084 tpc->RxDescArray = rtl_alloc_descs(NUM_RX_DESC);
1085 if (!tpc->RxDescArray)
1088 tpc->TxDescArray = rtl_alloc_descs(NUM_TX_DESC);
1089 if (!tpc->TxDescArray)
1095 #ifndef CONFIG_DM_ETH
1096 int rtl8169_initialize(bd_t *bis)
1099 int card_number = 0;
1100 struct eth_device *dev;
1105 unsigned int region;
1110 if ((devno = pci_find_devices(supported, idx++)) < 0)
1113 pci_read_config_word(devno, PCI_DEVICE_ID, &device);
1124 pci_read_config_dword(devno, PCI_BASE_ADDRESS_0 + (region * 4), &iobase);
1127 debug ("rtl8169: REALTEK RTL8169 @0x%x\n", iobase);
1129 dev = (struct eth_device *)malloc(sizeof *dev);
1131 printf("Can not allocate memory of rtl8169\n");
1135 memset(dev, 0, sizeof(*dev));
1136 sprintf (dev->name, "RTL8169#%d", card_number);
1138 dev->priv = (void *)(unsigned long)devno;
1139 dev->iobase = (int)pci_mem_to_phys(devno, iobase);
1141 dev->init = rtl_reset;
1142 dev->halt = rtl_halt;
1143 dev->send = rtl_send;
1144 dev->recv = rtl_recv;
1146 err = rtl_init(dev->iobase, dev->name, dev->enetaddr);
1148 printf(pr_fmt("failed to initialize card: %d\n"), err);
1161 #ifdef CONFIG_DM_ETH
1162 static int rtl8169_eth_probe(struct udevice *dev)
1164 struct pci_child_platdata *pplat = dev_get_parent_platdata(dev);
1165 struct rtl8169_private *priv = dev_get_priv(dev);
1166 struct eth_pdata *plat = dev_get_platdata(dev);
1171 debug("rtl8169: REALTEK RTL8169 @0x%x\n", iobase);
1172 switch (pplat->device) {
1180 dm_pci_read_config32(dev, PCI_BASE_ADDRESS_0 + region * 4, &iobase);
1182 priv->iobase = (int)dm_pci_mem_to_phys(dev, iobase);
1184 ret = rtl_init(priv->iobase, dev->name, plat->enetaddr);
1186 printf(pr_fmt("failed to initialize card: %d\n"), ret);
1193 static const struct eth_ops rtl8169_eth_ops = {
1194 .start = rtl8169_eth_start,
1195 .send = rtl8169_eth_send,
1196 .recv = rtl8169_eth_recv,
1197 .stop = rtl8169_eth_stop,
1200 static const struct udevice_id rtl8169_eth_ids[] = {
1201 { .compatible = "realtek,rtl8169" },
1205 U_BOOT_DRIVER(eth_rtl8169) = {
1206 .name = "eth_rtl8169",
1208 .of_match = rtl8169_eth_ids,
1209 .probe = rtl8169_eth_probe,
1210 .ops = &rtl8169_eth_ops,
1211 .priv_auto_alloc_size = sizeof(struct rtl8169_private),
1212 .platdata_auto_alloc_size = sizeof(struct eth_pdata),
1215 U_BOOT_PCI_DEVICE(eth_rtl8169, supported);