2 * i.MX Fast Ethernet Controller emulation.
6 * Based on Coldfire Fast Ethernet Controller emulation.
8 * Copyright (c) 2007 CodeSourcery.
10 * This program is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License as published by the
12 * Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful, but WITHOUT
16 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
17 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
20 * You should have received a copy of the GNU General Public License along
21 * with this program; if not, see <http://www.gnu.org/licenses/>.
24 #include "qemu/osdep.h"
25 #include "hw/net/imx_fec.h"
26 #include "sysemu/dma.h"
28 #include "net/checksum.h"
35 #define DEBUG_IMX_FEC 0
38 #define FEC_PRINTF(fmt, args...) \
40 if (DEBUG_IMX_FEC) { \
41 fprintf(stderr, "[%s]%s: " fmt , TYPE_IMX_FEC, \
47 #define DEBUG_IMX_PHY 0
50 #define PHY_PRINTF(fmt, args...) \
52 if (DEBUG_IMX_PHY) { \
53 fprintf(stderr, "[%s.phy]%s: " fmt , TYPE_IMX_FEC, \
58 static const char *imx_default_reg_name(IMXFECState *s, uint32_t index)
61 sprintf(tmp, "index %d", index);
65 static const char *imx_fec_reg_name(IMXFECState *s, uint32_t index)
72 case ENET_MIIGSK_CFGR:
77 return imx_default_reg_name(s, index);
81 static const char *imx_enet_reg_name(IMXFECState *s, uint32_t index)
139 return imx_default_reg_name(s, index);
143 static const char *imx_eth_reg_name(IMXFECState *s, uint32_t index)
190 return imx_fec_reg_name(s, index);
192 return imx_enet_reg_name(s, index);
197 static const VMStateDescription vmstate_imx_eth = {
198 .name = TYPE_IMX_FEC,
200 .minimum_version_id = 2,
201 .fields = (VMStateField[]) {
202 VMSTATE_UINT32_ARRAY(regs, IMXFECState, ENET_MAX),
203 VMSTATE_UINT32(rx_descriptor, IMXFECState),
204 VMSTATE_UINT32(tx_descriptor, IMXFECState),
206 VMSTATE_UINT32(phy_status, IMXFECState),
207 VMSTATE_UINT32(phy_control, IMXFECState),
208 VMSTATE_UINT32(phy_advertise, IMXFECState),
209 VMSTATE_UINT32(phy_int, IMXFECState),
210 VMSTATE_UINT32(phy_int_mask, IMXFECState),
211 VMSTATE_END_OF_LIST()
215 #define PHY_INT_ENERGYON (1 << 7)
216 #define PHY_INT_AUTONEG_COMPLETE (1 << 6)
217 #define PHY_INT_FAULT (1 << 5)
218 #define PHY_INT_DOWN (1 << 4)
219 #define PHY_INT_AUTONEG_LP (1 << 3)
220 #define PHY_INT_PARFAULT (1 << 2)
221 #define PHY_INT_AUTONEG_PAGE (1 << 1)
223 static void imx_eth_update(IMXFECState *s);
226 * The MII phy could raise a GPIO to the processor which in turn
227 * could be handled as an interrpt by the OS.
228 * For now we don't handle any GPIO/interrupt line, so the OS will
229 * have to poll for the PHY status.
231 static void phy_update_irq(IMXFECState *s)
236 static void phy_update_link(IMXFECState *s)
238 /* Autonegotiation status mirrors link status. */
239 if (qemu_get_queue(s->nic)->link_down) {
240 PHY_PRINTF("link is down\n");
241 s->phy_status &= ~0x0024;
242 s->phy_int |= PHY_INT_DOWN;
244 PHY_PRINTF("link is up\n");
245 s->phy_status |= 0x0024;
246 s->phy_int |= PHY_INT_ENERGYON;
247 s->phy_int |= PHY_INT_AUTONEG_COMPLETE;
252 static void imx_eth_set_link(NetClientState *nc)
254 phy_update_link(IMX_FEC(qemu_get_nic_opaque(nc)));
257 static void phy_reset(IMXFECState *s)
259 s->phy_status = 0x7809;
260 s->phy_control = 0x3000;
261 s->phy_advertise = 0x01e1;
267 static uint32_t do_phy_read(IMXFECState *s, int reg)
272 /* we only advertise one phy */
277 case 0: /* Basic Control */
278 val = s->phy_control;
280 case 1: /* Basic Status */
289 case 4: /* Auto-neg advertisement */
290 val = s->phy_advertise;
292 case 5: /* Auto-neg Link Partner Ability */
295 case 6: /* Auto-neg Expansion */
298 case 29: /* Interrupt source. */
303 case 30: /* Interrupt mask */
304 val = s->phy_int_mask;
310 qemu_log_mask(LOG_UNIMP, "[%s.phy]%s: reg %d not implemented\n",
311 TYPE_IMX_FEC, __func__, reg);
315 qemu_log_mask(LOG_GUEST_ERROR, "[%s.phy]%s: Bad address at offset %d\n",
316 TYPE_IMX_FEC, __func__, reg);
321 PHY_PRINTF("read 0x%04x @ %d\n", val, reg);
326 static void do_phy_write(IMXFECState *s, int reg, uint32_t val)
328 PHY_PRINTF("write 0x%04x @ %d\n", val, reg);
331 /* we only advertise one phy */
336 case 0: /* Basic Control */
340 s->phy_control = val & 0x7980;
341 /* Complete autonegotiation immediately. */
343 s->phy_status |= 0x0020;
347 case 4: /* Auto-neg advertisement */
348 s->phy_advertise = (val & 0x2d7f) | 0x80;
350 case 30: /* Interrupt mask */
351 s->phy_int_mask = val & 0xff;
358 qemu_log_mask(LOG_UNIMP, "[%s.phy)%s: reg %d not implemented\n",
359 TYPE_IMX_FEC, __func__, reg);
362 qemu_log_mask(LOG_GUEST_ERROR, "[%s.phy]%s: Bad address at offset %d\n",
363 TYPE_IMX_FEC, __func__, reg);
368 static void imx_fec_read_bd(IMXFECBufDesc *bd, dma_addr_t addr)
370 dma_memory_read(&address_space_memory, addr, bd, sizeof(*bd));
373 static void imx_fec_write_bd(IMXFECBufDesc *bd, dma_addr_t addr)
375 dma_memory_write(&address_space_memory, addr, bd, sizeof(*bd));
378 static void imx_enet_read_bd(IMXENETBufDesc *bd, dma_addr_t addr)
380 dma_memory_read(&address_space_memory, addr, bd, sizeof(*bd));
383 static void imx_enet_write_bd(IMXENETBufDesc *bd, dma_addr_t addr)
385 dma_memory_write(&address_space_memory, addr, bd, sizeof(*bd));
388 static void imx_eth_update(IMXFECState *s)
390 if (s->regs[ENET_EIR] & s->regs[ENET_EIMR] & ENET_INT_TS_TIMER) {
391 qemu_set_irq(s->irq[1], 1);
393 qemu_set_irq(s->irq[1], 0);
396 if (s->regs[ENET_EIR] & s->regs[ENET_EIMR] & ENET_INT_MAC) {
397 qemu_set_irq(s->irq[0], 1);
399 qemu_set_irq(s->irq[0], 0);
403 static void imx_fec_do_tx(IMXFECState *s)
406 uint8_t frame[ENET_MAX_FRAME_SIZE];
407 uint8_t *ptr = frame;
408 uint32_t addr = s->tx_descriptor;
414 imx_fec_read_bd(&bd, addr);
415 FEC_PRINTF("tx_bd %x flags %04x len %d data %08x\n",
416 addr, bd.flags, bd.length, bd.data);
417 if ((bd.flags & ENET_BD_R) == 0) {
418 /* Run out of descriptors to transmit. */
419 FEC_PRINTF("tx_bd ran out of descriptors to transmit\n");
423 if (frame_size + len > ENET_MAX_FRAME_SIZE) {
424 len = ENET_MAX_FRAME_SIZE - frame_size;
425 s->regs[ENET_EIR] |= ENET_INT_BABT;
427 dma_memory_read(&address_space_memory, bd.data, ptr, len);
430 if (bd.flags & ENET_BD_L) {
431 /* Last buffer in frame. */
432 qemu_send_packet(qemu_get_queue(s->nic), frame, len);
435 s->regs[ENET_EIR] |= ENET_INT_TXF;
437 s->regs[ENET_EIR] |= ENET_INT_TXB;
438 bd.flags &= ~ENET_BD_R;
439 /* Write back the modified descriptor. */
440 imx_fec_write_bd(&bd, addr);
441 /* Advance to the next descriptor. */
442 if ((bd.flags & ENET_BD_W) != 0) {
443 addr = s->regs[ENET_TDSR];
449 s->tx_descriptor = addr;
454 static void imx_enet_do_tx(IMXFECState *s)
457 uint8_t frame[ENET_MAX_FRAME_SIZE];
458 uint8_t *ptr = frame;
459 uint32_t addr = s->tx_descriptor;
465 imx_enet_read_bd(&bd, addr);
466 FEC_PRINTF("tx_bd %x flags %04x len %d data %08x option %04x "
467 "status %04x\n", addr, bd.flags, bd.length, bd.data,
468 bd.option, bd.status);
469 if ((bd.flags & ENET_BD_R) == 0) {
470 /* Run out of descriptors to transmit. */
474 if (frame_size + len > ENET_MAX_FRAME_SIZE) {
475 len = ENET_MAX_FRAME_SIZE - frame_size;
476 s->regs[ENET_EIR] |= ENET_INT_BABT;
478 dma_memory_read(&address_space_memory, bd.data, ptr, len);
481 if (bd.flags & ENET_BD_L) {
482 if (bd.option & ENET_BD_PINS) {
483 struct ip_header *ip_hd = PKT_GET_IP_HDR(frame);
484 if (IP_HEADER_VERSION(ip_hd) == 4) {
485 net_checksum_calculate(frame, frame_size);
488 if (bd.option & ENET_BD_IINS) {
489 struct ip_header *ip_hd = PKT_GET_IP_HDR(frame);
490 /* We compute checksum only for IPv4 frames */
491 if (IP_HEADER_VERSION(ip_hd) == 4) {
494 csum = net_raw_checksum((uint8_t *)ip_hd, sizeof(*ip_hd));
495 ip_hd->ip_sum = cpu_to_be16(csum);
498 /* Last buffer in frame. */
499 qemu_send_packet(qemu_get_queue(s->nic), frame, len);
502 if (bd.option & ENET_BD_TX_INT) {
503 s->regs[ENET_EIR] |= ENET_INT_TXF;
506 if (bd.option & ENET_BD_TX_INT) {
507 s->regs[ENET_EIR] |= ENET_INT_TXB;
509 bd.flags &= ~ENET_BD_R;
510 /* Write back the modified descriptor. */
511 imx_enet_write_bd(&bd, addr);
512 /* Advance to the next descriptor. */
513 if ((bd.flags & ENET_BD_W) != 0) {
514 addr = s->regs[ENET_TDSR];
520 s->tx_descriptor = addr;
525 static void imx_eth_do_tx(IMXFECState *s)
527 if (!s->is_fec && (s->regs[ENET_ECR] & ENET_ECR_EN1588)) {
534 static void imx_eth_enable_rx(IMXFECState *s)
539 imx_fec_read_bd(&bd, s->rx_descriptor);
541 tmp = ((bd.flags & ENET_BD_E) != 0);
544 FEC_PRINTF("RX buffer full\n");
545 } else if (!s->regs[ENET_RDAR]) {
546 qemu_flush_queued_packets(qemu_get_queue(s->nic));
549 s->regs[ENET_RDAR] = tmp ? ENET_RDAR_RDAR : 0;
552 static void imx_eth_reset(DeviceState *d)
554 IMXFECState *s = IMX_FEC(d);
556 /* Reset the Device */
557 memset(s->regs, 0, sizeof(s->regs));
558 s->regs[ENET_ECR] = 0xf0000000;
559 s->regs[ENET_MIBC] = 0xc0000000;
560 s->regs[ENET_RCR] = 0x05ee0001;
561 s->regs[ENET_OPD] = 0x00010000;
563 s->regs[ENET_PALR] = (s->conf.macaddr.a[0] << 24)
564 | (s->conf.macaddr.a[1] << 16)
565 | (s->conf.macaddr.a[2] << 8)
566 | s->conf.macaddr.a[3];
567 s->regs[ENET_PAUR] = (s->conf.macaddr.a[4] << 24)
568 | (s->conf.macaddr.a[5] << 16)
572 s->regs[ENET_FRBR] = 0x00000600;
573 s->regs[ENET_FRSR] = 0x00000500;
574 s->regs[ENET_MIIGSK_ENR] = 0x00000006;
576 s->regs[ENET_RAEM] = 0x00000004;
577 s->regs[ENET_RAFL] = 0x00000004;
578 s->regs[ENET_TAEM] = 0x00000004;
579 s->regs[ENET_TAFL] = 0x00000008;
580 s->regs[ENET_TIPG] = 0x0000000c;
581 s->regs[ENET_FTRL] = 0x000007ff;
582 s->regs[ENET_ATPER] = 0x3b9aca00;
585 s->rx_descriptor = 0;
586 s->tx_descriptor = 0;
588 /* We also reset the PHY */
592 static uint32_t imx_default_read(IMXFECState *s, uint32_t index)
594 qemu_log_mask(LOG_GUEST_ERROR, "[%s]%s: Bad register at offset 0x%"
595 PRIx32 "\n", TYPE_IMX_FEC, __func__, index * 4);
599 static uint32_t imx_fec_read(IMXFECState *s, uint32_t index)
604 case ENET_MIIGSK_CFGR:
605 case ENET_MIIGSK_ENR:
606 return s->regs[index];
608 return imx_default_read(s, index);
612 static uint32_t imx_enet_read(IMXFECState *s, uint32_t index)
642 return s->regs[index];
644 return imx_default_read(s, index);
648 static uint64_t imx_eth_read(void *opaque, hwaddr offset, unsigned size)
651 IMXFECState *s = IMX_FEC(opaque);
652 uint32_t index = offset >> 2;
676 value = s->regs[index];
680 value = imx_fec_read(s, index);
682 value = imx_enet_read(s, index);
687 FEC_PRINTF("reg[%s] => 0x%" PRIx32 "\n", imx_eth_reg_name(s, index),
693 static void imx_default_write(IMXFECState *s, uint32_t index, uint32_t value)
695 qemu_log_mask(LOG_GUEST_ERROR, "[%s]%s: Bad address at offset 0x%"
696 PRIx32 "\n", TYPE_IMX_FEC, __func__, index * 4);
700 static void imx_fec_write(IMXFECState *s, uint32_t index, uint32_t value)
704 /* FRBR is read only */
705 qemu_log_mask(LOG_GUEST_ERROR, "[%s]%s: Register FRBR is read only\n",
706 TYPE_IMX_FEC, __func__);
709 s->regs[index] = (value & 0x000003fc) | 0x00000400;
711 case ENET_MIIGSK_CFGR:
712 s->regs[index] = value & 0x00000053;
714 case ENET_MIIGSK_ENR:
715 s->regs[index] = (value & 0x00000002) ? 0x00000006 : 0;
718 imx_default_write(s, index, value);
723 static void imx_enet_write(IMXFECState *s, uint32_t index, uint32_t value)
733 s->regs[index] = value & 0x000001ff;
736 s->regs[index] = value & 0x0000001f;
739 s->regs[index] = value & 0x00003fff;
742 s->regs[index] = value & 0x00000019;
745 s->regs[index] = value & 0x000000C7;
748 s->regs[index] = value & 0x00002a9d;
753 s->regs[index] = value;
756 /* ATSTMP is read only */
757 qemu_log_mask(LOG_GUEST_ERROR, "[%s]%s: Register ATSTMP is read only\n",
758 TYPE_IMX_FEC, __func__);
761 s->regs[index] = value & 0x7fffffff;
764 s->regs[index] = value & 0x00007f7f;
767 /* implement clear timer flag */
768 value = value & 0x0000000f;
774 value = value & 0x000000fd;
780 s->regs[index] = value;
783 imx_default_write(s, index, value);
788 static void imx_eth_write(void *opaque, hwaddr offset, uint64_t value,
791 IMXFECState *s = IMX_FEC(opaque);
792 uint32_t index = offset >> 2;
794 FEC_PRINTF("reg[%s] <= 0x%" PRIx32 "\n", imx_eth_reg_name(s, index),
799 s->regs[index] &= ~value;
802 s->regs[index] = value;
805 if (s->regs[ENET_ECR] & ENET_ECR_ETHEREN) {
806 if (!s->regs[index]) {
807 s->regs[index] = ENET_RDAR_RDAR;
808 imx_eth_enable_rx(s);
815 if (s->regs[ENET_ECR] & ENET_ECR_ETHEREN) {
816 s->regs[index] = ENET_TDAR_TDAR;
822 if (value & ENET_ECR_RESET) {
823 return imx_eth_reset(DEVICE(s));
825 s->regs[index] = value;
826 if ((s->regs[index] & ENET_ECR_ETHEREN) == 0) {
827 s->regs[ENET_RDAR] = 0;
828 s->rx_descriptor = s->regs[ENET_RDSR];
829 s->regs[ENET_TDAR] = 0;
830 s->tx_descriptor = s->regs[ENET_TDSR];
834 s->regs[index] = value;
835 if (extract32(value, 29, 1)) {
836 /* This is a read operation */
837 s->regs[ENET_MMFR] = deposit32(s->regs[ENET_MMFR], 0, 16,
842 /* This a write operation */
843 do_phy_write(s, extract32(value, 18, 10), extract32(value, 0, 16));
845 /* raise the interrupt as the PHY operation is done */
846 s->regs[ENET_EIR] |= ENET_INT_MII;
849 s->regs[index] = value & 0xfe;
852 /* TODO: Implement MIB. */
853 s->regs[index] = (value & 0x80000000) ? 0xc0000000 : 0;
856 s->regs[index] = value & 0x07ff003f;
857 /* TODO: Implement LOOP mode. */
860 /* We transmit immediately, so raise GRA immediately. */
861 s->regs[index] = value;
863 s->regs[ENET_EIR] |= ENET_INT_GRA;
867 s->regs[index] = value;
868 s->conf.macaddr.a[0] = value >> 24;
869 s->conf.macaddr.a[1] = value >> 16;
870 s->conf.macaddr.a[2] = value >> 8;
871 s->conf.macaddr.a[3] = value;
874 s->regs[index] = (value | 0x0000ffff) & 0xffff8808;
875 s->conf.macaddr.a[4] = value >> 24;
876 s->conf.macaddr.a[5] = value >> 16;
879 s->regs[index] = (value & 0x0000ffff) | 0x00010000;
885 /* TODO: implement MAC hash filtering. */
889 s->regs[index] = value & 0x3;
891 s->regs[index] = value & 0x13f;
896 s->regs[index] = value & ~3;
898 s->regs[index] = value & ~7;
900 s->rx_descriptor = s->regs[index];
904 s->regs[index] = value & ~3;
906 s->regs[index] = value & ~7;
908 s->tx_descriptor = s->regs[index];
911 s->regs[index] = value & 0x00003ff0;
915 imx_fec_write(s, index, value);
917 imx_enet_write(s, index, value);
925 static int imx_eth_can_receive(NetClientState *nc)
927 IMXFECState *s = IMX_FEC(qemu_get_nic_opaque(nc));
931 return s->regs[ENET_RDAR] ? 1 : 0;
934 static ssize_t imx_fec_receive(NetClientState *nc, const uint8_t *buf,
937 IMXFECState *s = IMX_FEC(qemu_get_nic_opaque(nc));
944 unsigned int buf_len;
947 FEC_PRINTF("len %d\n", (int)size);
949 if (!s->regs[ENET_RDAR]) {
950 qemu_log_mask(LOG_GUEST_ERROR, "[%s]%s: Unexpected packet\n",
951 TYPE_IMX_FEC, __func__);
955 /* 4 bytes for the CRC. */
957 crc = cpu_to_be32(crc32(~0, buf, size));
958 crc_ptr = (uint8_t *) &crc;
960 /* Huge frames are truncated. */
961 if (size > ENET_MAX_FRAME_SIZE) {
962 size = ENET_MAX_FRAME_SIZE;
963 flags |= ENET_BD_TR | ENET_BD_LG;
966 /* Frames larger than the user limit just set error flags. */
967 if (size > (s->regs[ENET_RCR] >> 16)) {
971 addr = s->rx_descriptor;
973 imx_fec_read_bd(&bd, addr);
974 if ((bd.flags & ENET_BD_E) == 0) {
975 /* No descriptors available. Bail out. */
977 * FIXME: This is wrong. We should probably either
978 * save the remainder for when more RX buffers are
979 * available, or flag an error.
981 qemu_log_mask(LOG_GUEST_ERROR, "[%s]%s: Lost end of frame\n",
982 TYPE_IMX_FEC, __func__);
985 buf_len = (size <= s->regs[ENET_MRBR]) ? size : s->regs[ENET_MRBR];
989 FEC_PRINTF("rx_bd 0x%x length %d\n", addr, bd.length);
991 /* The last 4 bytes are the CRC. */
996 dma_memory_write(&address_space_memory, buf_addr, buf, buf_len);
999 dma_memory_write(&address_space_memory, buf_addr + buf_len,
1001 crc_ptr += 4 - size;
1003 bd.flags &= ~ENET_BD_E;
1005 /* Last buffer in frame. */
1006 bd.flags |= flags | ENET_BD_L;
1007 FEC_PRINTF("rx frame flags %04x\n", bd.flags);
1008 s->regs[ENET_EIR] |= ENET_INT_RXF;
1010 s->regs[ENET_EIR] |= ENET_INT_RXB;
1012 imx_fec_write_bd(&bd, addr);
1013 /* Advance to the next descriptor. */
1014 if ((bd.flags & ENET_BD_W) != 0) {
1015 addr = s->regs[ENET_RDSR];
1020 s->rx_descriptor = addr;
1021 imx_eth_enable_rx(s);
1026 static ssize_t imx_enet_receive(NetClientState *nc, const uint8_t *buf,
1029 IMXFECState *s = IMX_FEC(qemu_get_nic_opaque(nc));
1036 unsigned int buf_len;
1039 FEC_PRINTF("len %d\n", (int)size);
1041 if (!s->regs[ENET_RDAR]) {
1042 qemu_log_mask(LOG_GUEST_ERROR, "[%s]%s: Unexpected packet\n",
1043 TYPE_IMX_FEC, __func__);
1047 /* 4 bytes for the CRC. */
1049 crc = cpu_to_be32(crc32(~0, buf, size));
1050 crc_ptr = (uint8_t *) &crc;
1052 /* Huge frames are truncted. */
1053 if (size > ENET_MAX_FRAME_SIZE) {
1054 size = ENET_MAX_FRAME_SIZE;
1055 flags |= ENET_BD_TR | ENET_BD_LG;
1058 /* Frames larger than the user limit just set error flags. */
1059 if (size > (s->regs[ENET_RCR] >> 16)) {
1060 flags |= ENET_BD_LG;
1063 addr = s->rx_descriptor;
1065 imx_enet_read_bd(&bd, addr);
1066 if ((bd.flags & ENET_BD_E) == 0) {
1067 /* No descriptors available. Bail out. */
1069 * FIXME: This is wrong. We should probably either
1070 * save the remainder for when more RX buffers are
1071 * available, or flag an error.
1073 qemu_log_mask(LOG_GUEST_ERROR, "[%s]%s: Lost end of frame\n",
1074 TYPE_IMX_FEC, __func__);
1077 buf_len = (size <= s->regs[ENET_MRBR]) ? size : s->regs[ENET_MRBR];
1078 bd.length = buf_len;
1081 FEC_PRINTF("rx_bd 0x%x length %d\n", addr, bd.length);
1083 /* The last 4 bytes are the CRC. */
1085 buf_len += size - 4;
1088 dma_memory_write(&address_space_memory, buf_addr, buf, buf_len);
1091 dma_memory_write(&address_space_memory, buf_addr + buf_len,
1093 crc_ptr += 4 - size;
1095 bd.flags &= ~ENET_BD_E;
1097 /* Last buffer in frame. */
1098 bd.flags |= flags | ENET_BD_L;
1099 FEC_PRINTF("rx frame flags %04x\n", bd.flags);
1100 if (bd.option & ENET_BD_RX_INT) {
1101 s->regs[ENET_EIR] |= ENET_INT_RXF;
1104 if (bd.option & ENET_BD_RX_INT) {
1105 s->regs[ENET_EIR] |= ENET_INT_RXB;
1108 imx_enet_write_bd(&bd, addr);
1109 /* Advance to the next descriptor. */
1110 if ((bd.flags & ENET_BD_W) != 0) {
1111 addr = s->regs[ENET_RDSR];
1116 s->rx_descriptor = addr;
1117 imx_eth_enable_rx(s);
1122 static ssize_t imx_eth_receive(NetClientState *nc, const uint8_t *buf,
1125 IMXFECState *s = IMX_FEC(qemu_get_nic_opaque(nc));
1127 if (!s->is_fec && (s->regs[ENET_ECR] & ENET_ECR_EN1588)) {
1128 return imx_enet_receive(nc, buf, len);
1130 return imx_fec_receive(nc, buf, len);
1134 static const MemoryRegionOps imx_eth_ops = {
1135 .read = imx_eth_read,
1136 .write = imx_eth_write,
1137 .valid.min_access_size = 4,
1138 .valid.max_access_size = 4,
1139 .endianness = DEVICE_NATIVE_ENDIAN,
1142 static void imx_eth_cleanup(NetClientState *nc)
1144 IMXFECState *s = IMX_FEC(qemu_get_nic_opaque(nc));
1149 static NetClientInfo imx_eth_net_info = {
1150 .type = NET_CLIENT_OPTIONS_KIND_NIC,
1151 .size = sizeof(NICState),
1152 .can_receive = imx_eth_can_receive,
1153 .receive = imx_eth_receive,
1154 .cleanup = imx_eth_cleanup,
1155 .link_status_changed = imx_eth_set_link,
1159 static void imx_eth_realize(DeviceState *dev, Error **errp)
1161 IMXFECState *s = IMX_FEC(dev);
1162 SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
1164 memory_region_init_io(&s->iomem, OBJECT(dev), &imx_eth_ops, s,
1165 TYPE_IMX_FEC, 0x400);
1166 sysbus_init_mmio(sbd, &s->iomem);
1167 sysbus_init_irq(sbd, &s->irq[0]);
1168 sysbus_init_irq(sbd, &s->irq[1]);
1170 qemu_macaddr_default_if_unset(&s->conf.macaddr);
1172 s->conf.peers.ncs[0] = nd_table[0].netdev;
1174 s->nic = qemu_new_nic(&imx_eth_net_info, &s->conf,
1175 object_get_typename(OBJECT(dev)),
1176 DEVICE(dev)->id, s);
1178 qemu_format_nic_info_str(qemu_get_queue(s->nic), s->conf.macaddr.a);
1181 static Property imx_eth_properties[] = {
1182 DEFINE_NIC_PROPERTIES(IMXFECState, conf),
1183 DEFINE_PROP_END_OF_LIST(),
1186 static void imx_eth_class_init(ObjectClass *klass, void *data)
1188 DeviceClass *dc = DEVICE_CLASS(klass);
1190 dc->vmsd = &vmstate_imx_eth;
1191 dc->reset = imx_eth_reset;
1192 dc->props = imx_eth_properties;
1193 dc->realize = imx_eth_realize;
1194 dc->desc = "i.MX FEC/ENET Ethernet Controller";
1197 static void imx_fec_init(Object *obj)
1199 IMXFECState *s = IMX_FEC(obj);
1204 static void imx_enet_init(Object *obj)
1206 IMXFECState *s = IMX_FEC(obj);
1211 static const TypeInfo imx_fec_info = {
1212 .name = TYPE_IMX_FEC,
1213 .parent = TYPE_SYS_BUS_DEVICE,
1214 .instance_size = sizeof(IMXFECState),
1215 .instance_init = imx_fec_init,
1216 .class_init = imx_eth_class_init,
1219 static const TypeInfo imx_enet_info = {
1220 .name = TYPE_IMX_ENET,
1221 .parent = TYPE_IMX_FEC,
1222 .instance_init = imx_enet_init,
1225 static void imx_eth_register_types(void)
1227 type_register_static(&imx_fec_info);
1228 type_register_static(&imx_enet_info);
1231 type_init(imx_eth_register_types)