1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright (c) 2020, Intel Corporation
5 #include <linux/clk-provider.h>
8 #include "dwmac-intel.h"
11 #include "stmmac_ptp.h"
13 struct intel_priv_data {
14 int mdio_adhoc_addr; /* mdio address for serdes & etc */
15 unsigned long crossts_adj;
19 /* This struct is used to associate PCI Function of MAC controller on a board,
20 * discovered via DMI, with the address of PHY connected to the MAC. The
21 * negative value of the address means that MAC controller is not connected
24 struct stmmac_pci_func_data {
29 struct stmmac_pci_dmi_data {
30 const struct stmmac_pci_func_data *func;
34 struct stmmac_pci_info {
35 int (*setup)(struct pci_dev *pdev, struct plat_stmmacenet_data *plat);
38 static int stmmac_pci_find_phy_addr(struct pci_dev *pdev,
39 const struct dmi_system_id *dmi_list)
41 const struct stmmac_pci_func_data *func_data;
42 const struct stmmac_pci_dmi_data *dmi_data;
43 const struct dmi_system_id *dmi_id;
44 int func = PCI_FUNC(pdev->devfn);
47 dmi_id = dmi_first_match(dmi_list);
51 dmi_data = dmi_id->driver_data;
52 func_data = dmi_data->func;
54 for (n = 0; n < dmi_data->nfuncs; n++, func_data++)
55 if (func_data->func == func)
56 return func_data->phy_addr;
61 static int serdes_status_poll(struct stmmac_priv *priv, int phyaddr,
62 int phyreg, u32 mask, u32 val)
64 unsigned int retries = 10;
68 val_rd = mdiobus_read(priv->mii, phyaddr, phyreg);
69 if ((val_rd & mask) == (val & mask))
71 udelay(POLL_DELAY_US);
77 static int intel_serdes_powerup(struct net_device *ndev, void *priv_data)
79 struct intel_priv_data *intel_priv = priv_data;
80 struct stmmac_priv *priv = netdev_priv(ndev);
81 int serdes_phy_addr = 0;
84 if (!intel_priv->mdio_adhoc_addr)
87 serdes_phy_addr = intel_priv->mdio_adhoc_addr;
89 /* Set the serdes rate and the PCLK rate */
90 data = mdiobus_read(priv->mii, serdes_phy_addr,
93 data &= ~SERDES_RATE_MASK;
94 data &= ~SERDES_PCLK_MASK;
96 if (priv->plat->max_speed == 2500)
97 data |= SERDES_RATE_PCIE_GEN2 << SERDES_RATE_PCIE_SHIFT |
98 SERDES_PCLK_37p5MHZ << SERDES_PCLK_SHIFT;
100 data |= SERDES_RATE_PCIE_GEN1 << SERDES_RATE_PCIE_SHIFT |
101 SERDES_PCLK_70MHZ << SERDES_PCLK_SHIFT;
103 mdiobus_write(priv->mii, serdes_phy_addr, SERDES_GCR0, data);
106 data = mdiobus_read(priv->mii, serdes_phy_addr, SERDES_GCR0);
107 data |= SERDES_PLL_CLK;
108 mdiobus_write(priv->mii, serdes_phy_addr, SERDES_GCR0, data);
110 /* check for clk_ack assertion */
111 data = serdes_status_poll(priv, serdes_phy_addr,
117 dev_err(priv->device, "Serdes PLL clk request timeout\n");
121 /* assert lane reset */
122 data = mdiobus_read(priv->mii, serdes_phy_addr, SERDES_GCR0);
124 mdiobus_write(priv->mii, serdes_phy_addr, SERDES_GCR0, data);
126 /* check for assert lane reset reflection */
127 data = serdes_status_poll(priv, serdes_phy_addr,
133 dev_err(priv->device, "Serdes assert lane reset timeout\n");
137 /* move power state to P0 */
138 data = mdiobus_read(priv->mii, serdes_phy_addr, SERDES_GCR0);
140 data &= ~SERDES_PWR_ST_MASK;
141 data |= SERDES_PWR_ST_P0 << SERDES_PWR_ST_SHIFT;
143 mdiobus_write(priv->mii, serdes_phy_addr, SERDES_GCR0, data);
145 /* Check for P0 state */
146 data = serdes_status_poll(priv, serdes_phy_addr,
149 SERDES_PWR_ST_P0 << SERDES_PWR_ST_SHIFT);
152 dev_err(priv->device, "Serdes power state P0 timeout.\n");
156 /* PSE only - ungate SGMII PHY Rx Clock */
157 if (intel_priv->is_pse)
158 mdiobus_modify(priv->mii, serdes_phy_addr, SERDES_GCR0,
159 0, SERDES_PHY_RX_CLK);
164 static void intel_serdes_powerdown(struct net_device *ndev, void *intel_data)
166 struct intel_priv_data *intel_priv = intel_data;
167 struct stmmac_priv *priv = netdev_priv(ndev);
168 int serdes_phy_addr = 0;
171 if (!intel_priv->mdio_adhoc_addr)
174 serdes_phy_addr = intel_priv->mdio_adhoc_addr;
176 /* PSE only - gate SGMII PHY Rx Clock */
177 if (intel_priv->is_pse)
178 mdiobus_modify(priv->mii, serdes_phy_addr, SERDES_GCR0,
179 SERDES_PHY_RX_CLK, 0);
181 /* move power state to P3 */
182 data = mdiobus_read(priv->mii, serdes_phy_addr, SERDES_GCR0);
184 data &= ~SERDES_PWR_ST_MASK;
185 data |= SERDES_PWR_ST_P3 << SERDES_PWR_ST_SHIFT;
187 mdiobus_write(priv->mii, serdes_phy_addr, SERDES_GCR0, data);
189 /* Check for P3 state */
190 data = serdes_status_poll(priv, serdes_phy_addr,
193 SERDES_PWR_ST_P3 << SERDES_PWR_ST_SHIFT);
196 dev_err(priv->device, "Serdes power state P3 timeout\n");
200 /* de-assert clk_req */
201 data = mdiobus_read(priv->mii, serdes_phy_addr, SERDES_GCR0);
202 data &= ~SERDES_PLL_CLK;
203 mdiobus_write(priv->mii, serdes_phy_addr, SERDES_GCR0, data);
205 /* check for clk_ack de-assert */
206 data = serdes_status_poll(priv, serdes_phy_addr,
209 (u32)~SERDES_PLL_CLK);
212 dev_err(priv->device, "Serdes PLL clk de-assert timeout\n");
216 /* de-assert lane reset */
217 data = mdiobus_read(priv->mii, serdes_phy_addr, SERDES_GCR0);
219 mdiobus_write(priv->mii, serdes_phy_addr, SERDES_GCR0, data);
221 /* check for de-assert lane reset reflection */
222 data = serdes_status_poll(priv, serdes_phy_addr,
228 dev_err(priv->device, "Serdes de-assert lane reset timeout\n");
233 static void intel_speed_mode_2500(struct net_device *ndev, void *intel_data)
235 struct intel_priv_data *intel_priv = intel_data;
236 struct stmmac_priv *priv = netdev_priv(ndev);
237 int serdes_phy_addr = 0;
240 serdes_phy_addr = intel_priv->mdio_adhoc_addr;
242 /* Determine the link speed mode: 2.5Gbps/1Gbps */
243 data = mdiobus_read(priv->mii, serdes_phy_addr,
246 if (((data & SERDES_LINK_MODE_MASK) >> SERDES_LINK_MODE_SHIFT) ==
247 SERDES_LINK_MODE_2G5) {
248 dev_info(priv->device, "Link Speed Mode: 2.5Gbps\n");
249 priv->plat->max_speed = 2500;
250 priv->plat->phy_interface = PHY_INTERFACE_MODE_2500BASEX;
251 priv->plat->mdio_bus_data->xpcs_an_inband = false;
253 priv->plat->max_speed = 1000;
257 /* Program PTP Clock Frequency for different variant of
258 * Intel mGBE that has slightly different GPO mapping
260 static void intel_mgbe_ptp_clk_freq_config(void *npriv)
262 struct stmmac_priv *priv = (struct stmmac_priv *)npriv;
263 struct intel_priv_data *intel_priv;
266 intel_priv = (struct intel_priv_data *)priv->plat->bsp_priv;
268 gpio_value = readl(priv->ioaddr + GMAC_GPIO_STATUS);
270 if (intel_priv->is_pse) {
271 /* For PSE GbE, use 200MHz */
272 gpio_value &= ~PSE_PTP_CLK_FREQ_MASK;
273 gpio_value |= PSE_PTP_CLK_FREQ_200MHZ;
275 /* For PCH GbE, use 200MHz */
276 gpio_value &= ~PCH_PTP_CLK_FREQ_MASK;
277 gpio_value |= PCH_PTP_CLK_FREQ_200MHZ;
280 writel(gpio_value, priv->ioaddr + GMAC_GPIO_STATUS);
283 static void get_arttime(struct mii_bus *mii, int intel_adhoc_addr,
288 ns = mdiobus_read(mii, intel_adhoc_addr, PMC_ART_VALUE3);
289 ns <<= GMAC4_ART_TIME_SHIFT;
290 ns |= mdiobus_read(mii, intel_adhoc_addr, PMC_ART_VALUE2);
291 ns <<= GMAC4_ART_TIME_SHIFT;
292 ns |= mdiobus_read(mii, intel_adhoc_addr, PMC_ART_VALUE1);
293 ns <<= GMAC4_ART_TIME_SHIFT;
294 ns |= mdiobus_read(mii, intel_adhoc_addr, PMC_ART_VALUE0);
299 static int stmmac_cross_ts_isr(struct stmmac_priv *priv)
301 return (readl(priv->ioaddr + GMAC_INT_STATUS) & GMAC_INT_TSIE);
304 static int intel_crosststamp(ktime_t *device,
305 struct system_counterval_t *system,
308 struct intel_priv_data *intel_priv;
310 struct stmmac_priv *priv = (struct stmmac_priv *)ctx;
311 void __iomem *ptpaddr = priv->ptpaddr;
312 void __iomem *ioaddr = priv->hw->pcsr;
321 if (!boot_cpu_has(X86_FEATURE_ART))
324 intel_priv = priv->plat->bsp_priv;
326 /* Both internal crosstimestamping and external triggered event
327 * timestamping cannot be run concurrently.
329 if (priv->plat->ext_snapshot_en)
332 priv->plat->int_snapshot_en = 1;
334 mutex_lock(&priv->aux_ts_lock);
335 /* Enable Internal snapshot trigger */
336 acr_value = readl(ptpaddr + PTP_ACR);
337 acr_value &= ~PTP_ACR_MASK;
338 switch (priv->plat->int_snapshot_num) {
340 acr_value |= PTP_ACR_ATSEN0;
343 acr_value |= PTP_ACR_ATSEN1;
346 acr_value |= PTP_ACR_ATSEN2;
349 acr_value |= PTP_ACR_ATSEN3;
352 mutex_unlock(&priv->aux_ts_lock);
353 priv->plat->int_snapshot_en = 0;
356 writel(acr_value, ptpaddr + PTP_ACR);
359 acr_value = readl(ptpaddr + PTP_ACR);
360 acr_value |= PTP_ACR_ATSFC;
361 writel(acr_value, ptpaddr + PTP_ACR);
362 /* Release the mutex */
363 mutex_unlock(&priv->aux_ts_lock);
365 /* Trigger Internal snapshot signal
366 * Create a rising edge by just toggle the GPO1 to low
369 gpio_value = readl(ioaddr + GMAC_GPIO_STATUS);
370 gpio_value &= ~GMAC_GPO1;
371 writel(gpio_value, ioaddr + GMAC_GPIO_STATUS);
372 gpio_value |= GMAC_GPO1;
373 writel(gpio_value, ioaddr + GMAC_GPIO_STATUS);
375 /* Time sync done Indication - Interrupt method */
376 if (!wait_event_interruptible_timeout(priv->tstamp_busy_wait,
377 stmmac_cross_ts_isr(priv),
379 priv->plat->int_snapshot_en = 0;
383 num_snapshot = (readl(ioaddr + GMAC_TIMESTAMP_STATUS) &
384 GMAC_TIMESTAMP_ATSNS_MASK) >>
385 GMAC_TIMESTAMP_ATSNS_SHIFT;
387 /* Repeat until the timestamps are from the FIFO last segment */
388 for (i = 0; i < num_snapshot; i++) {
389 read_lock_irqsave(&priv->ptp_lock, flags);
390 stmmac_get_ptptime(priv, ptpaddr, &ptp_time);
391 *device = ns_to_ktime(ptp_time);
392 read_unlock_irqrestore(&priv->ptp_lock, flags);
393 get_arttime(priv->mii, intel_priv->mdio_adhoc_addr, &art_time);
394 *system = convert_art_to_tsc(art_time);
397 system->cycles *= intel_priv->crossts_adj;
398 priv->plat->int_snapshot_en = 0;
403 static void intel_mgbe_pse_crossts_adj(struct intel_priv_data *intel_priv,
406 if (boot_cpu_has(X86_FEATURE_ART)) {
407 unsigned int art_freq;
409 /* On systems that support ART, ART frequency can be obtained
410 * from ECX register of CPUID leaf (0x15).
412 art_freq = cpuid_ecx(ART_CPUID_LEAF);
413 do_div(art_freq, base);
414 intel_priv->crossts_adj = art_freq;
418 static void common_default_data(struct plat_stmmacenet_data *plat)
420 plat->clk_csr = 2; /* clk_csr_i = 20-35MHz & MDC = clk_csr_i/16 */
422 plat->force_sf_dma_mode = 1;
424 plat->mdio_bus_data->needs_reset = true;
426 /* Set default value for multicast hash bins */
427 plat->multicast_filter_bins = HASH_TABLE_SIZE;
429 /* Set default value for unicast filter entries */
430 plat->unicast_filter_entries = 1;
432 /* Set the maxmtu to a default of JUMBO_LEN */
433 plat->maxmtu = JUMBO_LEN;
435 /* Set default number of RX and TX queues to use */
436 plat->tx_queues_to_use = 1;
437 plat->rx_queues_to_use = 1;
439 /* Disable Priority config by default */
440 plat->tx_queues_cfg[0].use_prio = false;
441 plat->rx_queues_cfg[0].use_prio = false;
443 /* Disable RX queues routing by default */
444 plat->rx_queues_cfg[0].pkt_route = 0x0;
447 static int intel_mgbe_common_data(struct pci_dev *pdev,
448 struct plat_stmmacenet_data *plat)
450 struct fwnode_handle *fwnode;
460 plat->force_sf_dma_mode = 0;
462 plat->sph_disable = 1;
464 /* Multiplying factor to the clk_eee_i clock time
465 * period to make it closer to 100 ns. This value
466 * should be programmed such that the clk_eee_time_period *
467 * (MULT_FACT_100NS + 1) should be within 80 ns to 120 ns
468 * clk_eee frequency is 19.2Mhz
469 * clk_eee_time_period is 52ns
470 * 52ns * (1 + 1) = 104ns
471 * MULT_FACT_100NS = 1
473 plat->mult_fact_100ns = 1;
475 plat->rx_sched_algorithm = MTL_RX_ALGORITHM_SP;
477 for (i = 0; i < plat->rx_queues_to_use; i++) {
478 plat->rx_queues_cfg[i].mode_to_use = MTL_QUEUE_DCB;
479 plat->rx_queues_cfg[i].chan = i;
481 /* Disable Priority config by default */
482 plat->rx_queues_cfg[i].use_prio = false;
484 /* Disable RX queues routing by default */
485 plat->rx_queues_cfg[i].pkt_route = 0x0;
488 for (i = 0; i < plat->tx_queues_to_use; i++) {
489 plat->tx_queues_cfg[i].mode_to_use = MTL_QUEUE_DCB;
491 /* Disable Priority config by default */
492 plat->tx_queues_cfg[i].use_prio = false;
493 /* Default TX Q0 to use TSO and rest TXQ for TBS */
495 plat->tx_queues_cfg[i].tbs_en = 1;
498 /* FIFO size is 4096 bytes for 1 tx/rx queue */
499 plat->tx_fifo_size = plat->tx_queues_to_use * 4096;
500 plat->rx_fifo_size = plat->rx_queues_to_use * 4096;
502 plat->tx_sched_algorithm = MTL_TX_ALGORITHM_WRR;
503 plat->tx_queues_cfg[0].weight = 0x09;
504 plat->tx_queues_cfg[1].weight = 0x0A;
505 plat->tx_queues_cfg[2].weight = 0x0B;
506 plat->tx_queues_cfg[3].weight = 0x0C;
507 plat->tx_queues_cfg[4].weight = 0x0D;
508 plat->tx_queues_cfg[5].weight = 0x0E;
509 plat->tx_queues_cfg[6].weight = 0x0F;
510 plat->tx_queues_cfg[7].weight = 0x10;
512 plat->dma_cfg->pbl = 32;
513 plat->dma_cfg->pblx8 = true;
514 plat->dma_cfg->fixed_burst = 0;
515 plat->dma_cfg->mixed_burst = 0;
516 plat->dma_cfg->aal = 0;
517 plat->dma_cfg->dche = true;
519 plat->axi = devm_kzalloc(&pdev->dev, sizeof(*plat->axi),
524 plat->axi->axi_lpi_en = 0;
525 plat->axi->axi_xit_frm = 0;
526 plat->axi->axi_wr_osr_lmt = 1;
527 plat->axi->axi_rd_osr_lmt = 1;
528 plat->axi->axi_blen[0] = 4;
529 plat->axi->axi_blen[1] = 8;
530 plat->axi->axi_blen[2] = 16;
532 plat->ptp_max_adj = plat->clk_ptp_rate;
533 plat->eee_usecs_rate = plat->clk_ptp_rate;
535 /* Set system clock */
536 sprintf(clk_name, "%s-%s", "stmmac", pci_name(pdev));
538 plat->stmmac_clk = clk_register_fixed_rate(&pdev->dev,
542 if (IS_ERR(plat->stmmac_clk)) {
543 dev_warn(&pdev->dev, "Fail to register stmmac-clk\n");
544 plat->stmmac_clk = NULL;
547 ret = clk_prepare_enable(plat->stmmac_clk);
549 clk_unregister_fixed_rate(plat->stmmac_clk);
553 plat->ptp_clk_freq_config = intel_mgbe_ptp_clk_freq_config;
555 /* Set default value for multicast hash bins */
556 plat->multicast_filter_bins = HASH_TABLE_SIZE;
558 /* Set default value for unicast filter entries */
559 plat->unicast_filter_entries = 1;
561 /* Set the maxmtu to a default of JUMBO_LEN */
562 plat->maxmtu = JUMBO_LEN;
564 plat->vlan_fail_q_en = true;
566 /* Use the last Rx queue */
567 plat->vlan_fail_q = plat->rx_queues_to_use - 1;
569 /* For fixed-link setup, we allow phy-mode setting */
570 fwnode = dev_fwnode(&pdev->dev);
574 /* "phy-mode" setting is optional. If it is set,
575 * we allow either sgmii or 1000base-x for now.
577 phy_mode = fwnode_get_phy_mode(fwnode);
579 if (phy_mode == PHY_INTERFACE_MODE_SGMII ||
580 phy_mode == PHY_INTERFACE_MODE_1000BASEX)
581 plat->phy_interface = phy_mode;
583 dev_warn(&pdev->dev, "Invalid phy-mode\n");
587 /* Intel mgbe SGMII interface uses pcs-xcps */
588 if (plat->phy_interface == PHY_INTERFACE_MODE_SGMII ||
589 plat->phy_interface == PHY_INTERFACE_MODE_1000BASEX) {
590 plat->mdio_bus_data->has_xpcs = true;
591 plat->mdio_bus_data->xpcs_an_inband = true;
594 /* For fixed-link setup, we clear xpcs_an_inband */
596 struct fwnode_handle *fixed_node;
598 fixed_node = fwnode_get_named_child_node(fwnode, "fixed-link");
600 plat->mdio_bus_data->xpcs_an_inband = false;
602 fwnode_handle_put(fixed_node);
605 /* Ensure mdio bus scan skips intel serdes and pcs-xpcs */
606 plat->mdio_bus_data->phy_mask = 1 << INTEL_MGBE_ADHOC_ADDR;
607 plat->mdio_bus_data->phy_mask |= 1 << INTEL_MGBE_XPCS_ADDR;
609 plat->int_snapshot_num = AUX_SNAPSHOT1;
610 plat->ext_snapshot_num = AUX_SNAPSHOT0;
612 plat->crosststamp = intel_crosststamp;
613 plat->int_snapshot_en = 0;
615 /* Setup MSI vector offset specific to Intel mGbE controller */
616 plat->msi_mac_vec = 29;
617 plat->msi_lpi_vec = 28;
618 plat->msi_sfty_ce_vec = 27;
619 plat->msi_sfty_ue_vec = 26;
620 plat->msi_rx_base_vec = 0;
621 plat->msi_tx_base_vec = 1;
626 static int ehl_common_data(struct pci_dev *pdev,
627 struct plat_stmmacenet_data *plat)
629 plat->rx_queues_to_use = 8;
630 plat->tx_queues_to_use = 8;
631 plat->use_phy_wol = 1;
633 plat->safety_feat_cfg->tsoee = 1;
634 plat->safety_feat_cfg->mrxpee = 1;
635 plat->safety_feat_cfg->mestee = 1;
636 plat->safety_feat_cfg->mrxee = 1;
637 plat->safety_feat_cfg->mtxee = 1;
638 plat->safety_feat_cfg->epsi = 0;
639 plat->safety_feat_cfg->edpp = 0;
640 plat->safety_feat_cfg->prtyen = 0;
641 plat->safety_feat_cfg->tmouten = 0;
643 return intel_mgbe_common_data(pdev, plat);
646 static int ehl_sgmii_data(struct pci_dev *pdev,
647 struct plat_stmmacenet_data *plat)
650 plat->phy_interface = PHY_INTERFACE_MODE_SGMII;
651 plat->speed_mode_2500 = intel_speed_mode_2500;
652 plat->serdes_powerup = intel_serdes_powerup;
653 plat->serdes_powerdown = intel_serdes_powerdown;
655 plat->clk_ptp_rate = 204800000;
657 return ehl_common_data(pdev, plat);
660 static struct stmmac_pci_info ehl_sgmii1g_info = {
661 .setup = ehl_sgmii_data,
664 static int ehl_rgmii_data(struct pci_dev *pdev,
665 struct plat_stmmacenet_data *plat)
668 plat->phy_interface = PHY_INTERFACE_MODE_RGMII;
670 plat->clk_ptp_rate = 204800000;
672 return ehl_common_data(pdev, plat);
675 static struct stmmac_pci_info ehl_rgmii1g_info = {
676 .setup = ehl_rgmii_data,
679 static int ehl_pse0_common_data(struct pci_dev *pdev,
680 struct plat_stmmacenet_data *plat)
682 struct intel_priv_data *intel_priv = plat->bsp_priv;
684 intel_priv->is_pse = true;
686 plat->host_dma_width = 32;
688 plat->clk_ptp_rate = 200000000;
690 intel_mgbe_pse_crossts_adj(intel_priv, EHL_PSE_ART_MHZ);
692 return ehl_common_data(pdev, plat);
695 static int ehl_pse0_rgmii1g_data(struct pci_dev *pdev,
696 struct plat_stmmacenet_data *plat)
698 plat->phy_interface = PHY_INTERFACE_MODE_RGMII_ID;
699 return ehl_pse0_common_data(pdev, plat);
702 static struct stmmac_pci_info ehl_pse0_rgmii1g_info = {
703 .setup = ehl_pse0_rgmii1g_data,
706 static int ehl_pse0_sgmii1g_data(struct pci_dev *pdev,
707 struct plat_stmmacenet_data *plat)
709 plat->phy_interface = PHY_INTERFACE_MODE_SGMII;
710 plat->speed_mode_2500 = intel_speed_mode_2500;
711 plat->serdes_powerup = intel_serdes_powerup;
712 plat->serdes_powerdown = intel_serdes_powerdown;
713 return ehl_pse0_common_data(pdev, plat);
716 static struct stmmac_pci_info ehl_pse0_sgmii1g_info = {
717 .setup = ehl_pse0_sgmii1g_data,
720 static int ehl_pse1_common_data(struct pci_dev *pdev,
721 struct plat_stmmacenet_data *plat)
723 struct intel_priv_data *intel_priv = plat->bsp_priv;
725 intel_priv->is_pse = true;
727 plat->host_dma_width = 32;
729 plat->clk_ptp_rate = 200000000;
731 intel_mgbe_pse_crossts_adj(intel_priv, EHL_PSE_ART_MHZ);
733 return ehl_common_data(pdev, plat);
736 static int ehl_pse1_rgmii1g_data(struct pci_dev *pdev,
737 struct plat_stmmacenet_data *plat)
739 plat->phy_interface = PHY_INTERFACE_MODE_RGMII_ID;
740 return ehl_pse1_common_data(pdev, plat);
743 static struct stmmac_pci_info ehl_pse1_rgmii1g_info = {
744 .setup = ehl_pse1_rgmii1g_data,
747 static int ehl_pse1_sgmii1g_data(struct pci_dev *pdev,
748 struct plat_stmmacenet_data *plat)
750 plat->phy_interface = PHY_INTERFACE_MODE_SGMII;
751 plat->speed_mode_2500 = intel_speed_mode_2500;
752 plat->serdes_powerup = intel_serdes_powerup;
753 plat->serdes_powerdown = intel_serdes_powerdown;
754 return ehl_pse1_common_data(pdev, plat);
757 static struct stmmac_pci_info ehl_pse1_sgmii1g_info = {
758 .setup = ehl_pse1_sgmii1g_data,
761 static int tgl_common_data(struct pci_dev *pdev,
762 struct plat_stmmacenet_data *plat)
764 plat->rx_queues_to_use = 6;
765 plat->tx_queues_to_use = 4;
766 plat->clk_ptp_rate = 204800000;
767 plat->speed_mode_2500 = intel_speed_mode_2500;
769 plat->safety_feat_cfg->tsoee = 1;
770 plat->safety_feat_cfg->mrxpee = 0;
771 plat->safety_feat_cfg->mestee = 1;
772 plat->safety_feat_cfg->mrxee = 1;
773 plat->safety_feat_cfg->mtxee = 1;
774 plat->safety_feat_cfg->epsi = 0;
775 plat->safety_feat_cfg->edpp = 0;
776 plat->safety_feat_cfg->prtyen = 0;
777 plat->safety_feat_cfg->tmouten = 0;
779 return intel_mgbe_common_data(pdev, plat);
782 static int tgl_sgmii_phy0_data(struct pci_dev *pdev,
783 struct plat_stmmacenet_data *plat)
786 plat->phy_interface = PHY_INTERFACE_MODE_SGMII;
787 plat->serdes_powerup = intel_serdes_powerup;
788 plat->serdes_powerdown = intel_serdes_powerdown;
789 return tgl_common_data(pdev, plat);
792 static struct stmmac_pci_info tgl_sgmii1g_phy0_info = {
793 .setup = tgl_sgmii_phy0_data,
796 static int tgl_sgmii_phy1_data(struct pci_dev *pdev,
797 struct plat_stmmacenet_data *plat)
800 plat->phy_interface = PHY_INTERFACE_MODE_SGMII;
801 plat->serdes_powerup = intel_serdes_powerup;
802 plat->serdes_powerdown = intel_serdes_powerdown;
803 return tgl_common_data(pdev, plat);
806 static struct stmmac_pci_info tgl_sgmii1g_phy1_info = {
807 .setup = tgl_sgmii_phy1_data,
810 static int adls_sgmii_phy0_data(struct pci_dev *pdev,
811 struct plat_stmmacenet_data *plat)
814 plat->phy_interface = PHY_INTERFACE_MODE_SGMII;
816 /* SerDes power up and power down are done in BIOS for ADL */
818 return tgl_common_data(pdev, plat);
821 static struct stmmac_pci_info adls_sgmii1g_phy0_info = {
822 .setup = adls_sgmii_phy0_data,
825 static int adls_sgmii_phy1_data(struct pci_dev *pdev,
826 struct plat_stmmacenet_data *plat)
829 plat->phy_interface = PHY_INTERFACE_MODE_SGMII;
831 /* SerDes power up and power down are done in BIOS for ADL */
833 return tgl_common_data(pdev, plat);
836 static struct stmmac_pci_info adls_sgmii1g_phy1_info = {
837 .setup = adls_sgmii_phy1_data,
839 static const struct stmmac_pci_func_data galileo_stmmac_func_data[] = {
846 static const struct stmmac_pci_dmi_data galileo_stmmac_dmi_data = {
847 .func = galileo_stmmac_func_data,
848 .nfuncs = ARRAY_SIZE(galileo_stmmac_func_data),
851 static const struct stmmac_pci_func_data iot2040_stmmac_func_data[] = {
862 static const struct stmmac_pci_dmi_data iot2040_stmmac_dmi_data = {
863 .func = iot2040_stmmac_func_data,
864 .nfuncs = ARRAY_SIZE(iot2040_stmmac_func_data),
867 static const struct dmi_system_id quark_pci_dmi[] = {
870 DMI_EXACT_MATCH(DMI_BOARD_NAME, "Galileo"),
872 .driver_data = (void *)&galileo_stmmac_dmi_data,
876 DMI_EXACT_MATCH(DMI_BOARD_NAME, "GalileoGen2"),
878 .driver_data = (void *)&galileo_stmmac_dmi_data,
880 /* There are 2 types of SIMATIC IOT2000: IOT2020 and IOT2040.
881 * The asset tag "6ES7647-0AA00-0YA2" is only for IOT2020 which
882 * has only one pci network device while other asset tags are
883 * for IOT2040 which has two.
887 DMI_EXACT_MATCH(DMI_BOARD_NAME, "SIMATIC IOT2000"),
888 DMI_EXACT_MATCH(DMI_BOARD_ASSET_TAG,
889 "6ES7647-0AA00-0YA2"),
891 .driver_data = (void *)&galileo_stmmac_dmi_data,
895 DMI_EXACT_MATCH(DMI_BOARD_NAME, "SIMATIC IOT2000"),
897 .driver_data = (void *)&iot2040_stmmac_dmi_data,
902 static int quark_default_data(struct pci_dev *pdev,
903 struct plat_stmmacenet_data *plat)
907 /* Set common default data first */
908 common_default_data(plat);
910 /* Refuse to load the driver and register net device if MAC controller
911 * does not connect to any PHY interface.
913 ret = stmmac_pci_find_phy_addr(pdev, quark_pci_dmi);
915 /* Return error to the caller on DMI enabled boards. */
916 if (dmi_get_system_info(DMI_BOARD_NAME))
919 /* Galileo boards with old firmware don't support DMI. We always
920 * use 1 here as PHY address, so at least the first found MAC
921 * controller would be probed.
926 plat->bus_id = pci_dev_id(pdev);
927 plat->phy_addr = ret;
928 plat->phy_interface = PHY_INTERFACE_MODE_RMII;
930 plat->dma_cfg->pbl = 16;
931 plat->dma_cfg->pblx8 = true;
932 plat->dma_cfg->fixed_burst = 1;
938 static const struct stmmac_pci_info quark_info = {
939 .setup = quark_default_data,
942 static int stmmac_config_single_msi(struct pci_dev *pdev,
943 struct plat_stmmacenet_data *plat,
944 struct stmmac_resources *res)
948 ret = pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_ALL_TYPES);
950 dev_info(&pdev->dev, "%s: Single IRQ enablement failed\n",
955 res->irq = pci_irq_vector(pdev, 0);
956 res->wol_irq = res->irq;
957 plat->multi_msi_en = 0;
958 dev_info(&pdev->dev, "%s: Single IRQ enablement successful\n",
964 static int stmmac_config_multi_msi(struct pci_dev *pdev,
965 struct plat_stmmacenet_data *plat,
966 struct stmmac_resources *res)
971 if (plat->msi_rx_base_vec >= STMMAC_MSI_VEC_MAX ||
972 plat->msi_tx_base_vec >= STMMAC_MSI_VEC_MAX) {
973 dev_info(&pdev->dev, "%s: Invalid RX & TX vector defined\n",
978 ret = pci_alloc_irq_vectors(pdev, 2, STMMAC_MSI_VEC_MAX,
979 PCI_IRQ_MSI | PCI_IRQ_MSIX);
981 dev_info(&pdev->dev, "%s: multi MSI enablement failed\n",
987 for (i = 0; i < plat->rx_queues_to_use; i++) {
988 res->rx_irq[i] = pci_irq_vector(pdev,
989 plat->msi_rx_base_vec + i * 2);
993 for (i = 0; i < plat->tx_queues_to_use; i++) {
994 res->tx_irq[i] = pci_irq_vector(pdev,
995 plat->msi_tx_base_vec + i * 2);
998 if (plat->msi_mac_vec < STMMAC_MSI_VEC_MAX)
999 res->irq = pci_irq_vector(pdev, plat->msi_mac_vec);
1000 if (plat->msi_wol_vec < STMMAC_MSI_VEC_MAX)
1001 res->wol_irq = pci_irq_vector(pdev, plat->msi_wol_vec);
1002 if (plat->msi_lpi_vec < STMMAC_MSI_VEC_MAX)
1003 res->lpi_irq = pci_irq_vector(pdev, plat->msi_lpi_vec);
1004 if (plat->msi_sfty_ce_vec < STMMAC_MSI_VEC_MAX)
1005 res->sfty_ce_irq = pci_irq_vector(pdev, plat->msi_sfty_ce_vec);
1006 if (plat->msi_sfty_ue_vec < STMMAC_MSI_VEC_MAX)
1007 res->sfty_ue_irq = pci_irq_vector(pdev, plat->msi_sfty_ue_vec);
1009 plat->multi_msi_en = 1;
1010 dev_info(&pdev->dev, "%s: multi MSI enablement successful\n", __func__);
1016 * intel_eth_pci_probe
1018 * @pdev: pci device pointer
1019 * @id: pointer to table of device id/id's.
1021 * Description: This probing function gets called for all PCI devices which
1022 * match the ID table and are not "owned" by other driver yet. This function
1023 * gets passed a "struct pci_dev *" for each device whose entry in the ID table
1024 * matches the device. The probe functions returns zero when the driver choose
1025 * to take "ownership" of the device or an error code(-ve no) otherwise.
1027 static int intel_eth_pci_probe(struct pci_dev *pdev,
1028 const struct pci_device_id *id)
1030 struct stmmac_pci_info *info = (struct stmmac_pci_info *)id->driver_data;
1031 struct intel_priv_data *intel_priv;
1032 struct plat_stmmacenet_data *plat;
1033 struct stmmac_resources res;
1036 intel_priv = devm_kzalloc(&pdev->dev, sizeof(*intel_priv), GFP_KERNEL);
1040 plat = devm_kzalloc(&pdev->dev, sizeof(*plat), GFP_KERNEL);
1044 plat->mdio_bus_data = devm_kzalloc(&pdev->dev,
1045 sizeof(*plat->mdio_bus_data),
1047 if (!plat->mdio_bus_data)
1050 plat->dma_cfg = devm_kzalloc(&pdev->dev, sizeof(*plat->dma_cfg),
1055 plat->safety_feat_cfg = devm_kzalloc(&pdev->dev,
1056 sizeof(*plat->safety_feat_cfg),
1058 if (!plat->safety_feat_cfg)
1061 /* Enable pci device */
1062 ret = pcim_enable_device(pdev);
1064 dev_err(&pdev->dev, "%s: ERROR: failed to enable device\n",
1069 ret = pcim_iomap_regions(pdev, BIT(0), pci_name(pdev));
1073 pci_set_master(pdev);
1075 plat->bsp_priv = intel_priv;
1076 intel_priv->mdio_adhoc_addr = INTEL_MGBE_ADHOC_ADDR;
1077 intel_priv->crossts_adj = 1;
1079 /* Initialize all MSI vectors to invalid so that it can be set
1080 * according to platform data settings below.
1081 * Note: MSI vector takes value from 0 upto 31 (STMMAC_MSI_VEC_MAX)
1083 plat->msi_mac_vec = STMMAC_MSI_VEC_MAX;
1084 plat->msi_wol_vec = STMMAC_MSI_VEC_MAX;
1085 plat->msi_lpi_vec = STMMAC_MSI_VEC_MAX;
1086 plat->msi_sfty_ce_vec = STMMAC_MSI_VEC_MAX;
1087 plat->msi_sfty_ue_vec = STMMAC_MSI_VEC_MAX;
1088 plat->msi_rx_base_vec = STMMAC_MSI_VEC_MAX;
1089 plat->msi_tx_base_vec = STMMAC_MSI_VEC_MAX;
1091 ret = info->setup(pdev, plat);
1095 memset(&res, 0, sizeof(res));
1096 res.addr = pcim_iomap_table(pdev)[0];
1098 if (plat->eee_usecs_rate > 0) {
1101 tx_lpi_usec = (plat->eee_usecs_rate / 1000000) - 1;
1102 writel(tx_lpi_usec, res.addr + GMAC_1US_TIC_COUNTER);
1105 ret = stmmac_config_multi_msi(pdev, plat, &res);
1107 ret = stmmac_config_single_msi(pdev, plat, &res);
1109 dev_err(&pdev->dev, "%s: ERROR: failed to enable IRQ\n",
1115 ret = stmmac_dvr_probe(&pdev->dev, plat, &res);
1123 clk_disable_unprepare(plat->stmmac_clk);
1124 clk_unregister_fixed_rate(plat->stmmac_clk);
1129 * intel_eth_pci_remove
1131 * @pdev: pci device pointer
1132 * Description: this function calls the main to free the net resources
1133 * and releases the PCI resources.
1135 static void intel_eth_pci_remove(struct pci_dev *pdev)
1137 struct net_device *ndev = dev_get_drvdata(&pdev->dev);
1138 struct stmmac_priv *priv = netdev_priv(ndev);
1140 stmmac_dvr_remove(&pdev->dev);
1142 clk_disable_unprepare(priv->plat->stmmac_clk);
1143 clk_unregister_fixed_rate(priv->plat->stmmac_clk);
1146 static int __maybe_unused intel_eth_pci_suspend(struct device *dev)
1148 struct pci_dev *pdev = to_pci_dev(dev);
1151 ret = stmmac_suspend(dev);
1155 ret = pci_save_state(pdev);
1159 pci_wake_from_d3(pdev, true);
1160 pci_set_power_state(pdev, PCI_D3hot);
1164 static int __maybe_unused intel_eth_pci_resume(struct device *dev)
1166 struct pci_dev *pdev = to_pci_dev(dev);
1169 pci_restore_state(pdev);
1170 pci_set_power_state(pdev, PCI_D0);
1172 ret = pcim_enable_device(pdev);
1176 pci_set_master(pdev);
1178 return stmmac_resume(dev);
1181 static SIMPLE_DEV_PM_OPS(intel_eth_pm_ops, intel_eth_pci_suspend,
1182 intel_eth_pci_resume);
1184 #define PCI_DEVICE_ID_INTEL_QUARK 0x0937
1185 #define PCI_DEVICE_ID_INTEL_EHL_RGMII1G 0x4b30
1186 #define PCI_DEVICE_ID_INTEL_EHL_SGMII1G 0x4b31
1187 #define PCI_DEVICE_ID_INTEL_EHL_SGMII2G5 0x4b32
1188 /* Intel(R) Programmable Services Engine (Intel(R) PSE) consist of 2 MAC
1189 * which are named PSE0 and PSE1
1191 #define PCI_DEVICE_ID_INTEL_EHL_PSE0_RGMII1G 0x4ba0
1192 #define PCI_DEVICE_ID_INTEL_EHL_PSE0_SGMII1G 0x4ba1
1193 #define PCI_DEVICE_ID_INTEL_EHL_PSE0_SGMII2G5 0x4ba2
1194 #define PCI_DEVICE_ID_INTEL_EHL_PSE1_RGMII1G 0x4bb0
1195 #define PCI_DEVICE_ID_INTEL_EHL_PSE1_SGMII1G 0x4bb1
1196 #define PCI_DEVICE_ID_INTEL_EHL_PSE1_SGMII2G5 0x4bb2
1197 #define PCI_DEVICE_ID_INTEL_TGLH_SGMII1G_0 0x43ac
1198 #define PCI_DEVICE_ID_INTEL_TGLH_SGMII1G_1 0x43a2
1199 #define PCI_DEVICE_ID_INTEL_TGL_SGMII1G 0xa0ac
1200 #define PCI_DEVICE_ID_INTEL_ADLS_SGMII1G_0 0x7aac
1201 #define PCI_DEVICE_ID_INTEL_ADLS_SGMII1G_1 0x7aad
1202 #define PCI_DEVICE_ID_INTEL_ADLN_SGMII1G 0x54ac
1203 #define PCI_DEVICE_ID_INTEL_RPLP_SGMII1G 0x51ac
1205 static const struct pci_device_id intel_eth_pci_id_table[] = {
1206 { PCI_DEVICE_DATA(INTEL, QUARK, &quark_info) },
1207 { PCI_DEVICE_DATA(INTEL, EHL_RGMII1G, &ehl_rgmii1g_info) },
1208 { PCI_DEVICE_DATA(INTEL, EHL_SGMII1G, &ehl_sgmii1g_info) },
1209 { PCI_DEVICE_DATA(INTEL, EHL_SGMII2G5, &ehl_sgmii1g_info) },
1210 { PCI_DEVICE_DATA(INTEL, EHL_PSE0_RGMII1G, &ehl_pse0_rgmii1g_info) },
1211 { PCI_DEVICE_DATA(INTEL, EHL_PSE0_SGMII1G, &ehl_pse0_sgmii1g_info) },
1212 { PCI_DEVICE_DATA(INTEL, EHL_PSE0_SGMII2G5, &ehl_pse0_sgmii1g_info) },
1213 { PCI_DEVICE_DATA(INTEL, EHL_PSE1_RGMII1G, &ehl_pse1_rgmii1g_info) },
1214 { PCI_DEVICE_DATA(INTEL, EHL_PSE1_SGMII1G, &ehl_pse1_sgmii1g_info) },
1215 { PCI_DEVICE_DATA(INTEL, EHL_PSE1_SGMII2G5, &ehl_pse1_sgmii1g_info) },
1216 { PCI_DEVICE_DATA(INTEL, TGL_SGMII1G, &tgl_sgmii1g_phy0_info) },
1217 { PCI_DEVICE_DATA(INTEL, TGLH_SGMII1G_0, &tgl_sgmii1g_phy0_info) },
1218 { PCI_DEVICE_DATA(INTEL, TGLH_SGMII1G_1, &tgl_sgmii1g_phy1_info) },
1219 { PCI_DEVICE_DATA(INTEL, ADLS_SGMII1G_0, &adls_sgmii1g_phy0_info) },
1220 { PCI_DEVICE_DATA(INTEL, ADLS_SGMII1G_1, &adls_sgmii1g_phy1_info) },
1221 { PCI_DEVICE_DATA(INTEL, ADLN_SGMII1G, &tgl_sgmii1g_phy0_info) },
1222 { PCI_DEVICE_DATA(INTEL, RPLP_SGMII1G, &tgl_sgmii1g_phy0_info) },
1225 MODULE_DEVICE_TABLE(pci, intel_eth_pci_id_table);
1227 static struct pci_driver intel_eth_pci_driver = {
1228 .name = "intel-eth-pci",
1229 .id_table = intel_eth_pci_id_table,
1230 .probe = intel_eth_pci_probe,
1231 .remove = intel_eth_pci_remove,
1233 .pm = &intel_eth_pm_ops,
1237 module_pci_driver(intel_eth_pci_driver);
1239 MODULE_DESCRIPTION("INTEL 10/100/1000 Ethernet PCI driver");
1240 MODULE_AUTHOR("Voon Weifeng <weifeng.voon@intel.com>");
1241 MODULE_LICENSE("GPL v2");