1 /*******************************************************************************
2 This contains the functions to handle the platform driver.
4 Copyright (C) 2007-2011 STMicroelectronics Ltd
6 This program is free software; you can redistribute it and/or modify it
7 under the terms and conditions of the GNU General Public License,
8 version 2, as published by the Free Software Foundation.
10 This program is distributed in the hope it will be useful, but WITHOUT
11 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
15 The full GNU General Public License is included in this distribution in
16 the file called "COPYING".
18 Author: Giuseppe Cavallaro <peppe.cavallaro@st.com>
19 *******************************************************************************/
21 #include <linux/platform_device.h>
22 #include <linux/module.h>
25 #include <linux/of_net.h>
26 #include <linux/of_device.h>
27 #include <linux/of_mdio.h>
30 #include "stmmac_platform.h"
35 * dwmac1000_validate_mcast_bins - validates the number of Multicast filter bins
36 * @mcast_bins: Multicast filtering bins
38 * this function validates the number of Multicast filtering bins specified
39 * by the configuration through the device tree. The Synopsys GMAC supports
40 * 64 bins, 128 bins, or 256 bins. "bins" refer to the division of CRC
41 * number space. 64 bins correspond to 6 bits of the CRC, 128 corresponds
42 * to 7 bits, and 256 refers to 8 bits of the CRC. Any other setting is
43 * invalid and will cause the filtering algorithm to use Multicast
46 static int dwmac1000_validate_mcast_bins(int mcast_bins)
57 pr_info("Hash table entries set to unexpected value %d",
65 * dwmac1000_validate_ucast_entries - validate the Unicast address entries
66 * @ucast_entries: number of Unicast address entries
68 * This function validates the number of Unicast address entries supported
69 * by a particular Synopsys 10/100/1000 controller. The Synopsys controller
70 * supports 1, 32, 64, or 128 Unicast filter entries for it's Unicast filter
71 * logic. This function validates a valid, supported configuration is
72 * selected, and defaults to 1 Unicast address if an unsupported
73 * configuration is selected.
75 static int dwmac1000_validate_ucast_entries(int ucast_entries)
77 int x = ucast_entries;
87 pr_info("Unicast table entries set to unexpected value %d\n",
95 * stmmac_axi_setup - parse DT parameters for programming the AXI register
96 * @pdev: platform device
98 * if required, from device-tree the AXI internal register can be tuned
99 * by using platform parameters.
101 static struct stmmac_axi *stmmac_axi_setup(struct platform_device *pdev)
103 struct device_node *np;
104 struct stmmac_axi *axi;
106 np = of_parse_phandle(pdev->dev.of_node, "snps,axi-config", 0);
110 axi = devm_kzalloc(&pdev->dev, sizeof(*axi), GFP_KERNEL);
113 return ERR_PTR(-ENOMEM);
116 axi->axi_lpi_en = of_property_read_bool(np, "snps,lpi_en");
117 axi->axi_xit_frm = of_property_read_bool(np, "snps,xit_frm");
118 axi->axi_kbbe = of_property_read_bool(np, "snps,axi_kbbe");
119 axi->axi_fb = of_property_read_bool(np, "snps,axi_fb");
120 axi->axi_mb = of_property_read_bool(np, "snps,axi_mb");
121 axi->axi_rb = of_property_read_bool(np, "snps,axi_rb");
123 if (of_property_read_u32(np, "snps,wr_osr_lmt", &axi->axi_wr_osr_lmt))
124 axi->axi_wr_osr_lmt = 1;
125 if (of_property_read_u32(np, "snps,rd_osr_lmt", &axi->axi_rd_osr_lmt))
126 axi->axi_rd_osr_lmt = 1;
127 of_property_read_u32_array(np, "snps,blen", axi->axi_blen, AXI_BLEN);
134 * stmmac_mtl_setup - parse DT parameters for multiple queues configuration
135 * @pdev: platform device
137 static int stmmac_mtl_setup(struct platform_device *pdev,
138 struct plat_stmmacenet_data *plat)
140 struct device_node *q_node;
141 struct device_node *rx_node;
142 struct device_node *tx_node;
146 /* For backwards-compatibility with device trees that don't have any
147 * snps,mtl-rx-config or snps,mtl-tx-config properties, we fall back
148 * to one RX and TX queues each.
150 plat->rx_queues_to_use = 1;
151 plat->tx_queues_to_use = 1;
153 /* First Queue must always be in DCB mode. As MTL_QUEUE_DCB = 1 we need
154 * to always set this, otherwise Queue will be classified as AVB
155 * (because MTL_QUEUE_AVB = 0).
157 plat->rx_queues_cfg[0].mode_to_use = MTL_QUEUE_DCB;
158 plat->tx_queues_cfg[0].mode_to_use = MTL_QUEUE_DCB;
160 rx_node = of_parse_phandle(pdev->dev.of_node, "snps,mtl-rx-config", 0);
164 tx_node = of_parse_phandle(pdev->dev.of_node, "snps,mtl-tx-config", 0);
166 of_node_put(rx_node);
170 /* Processing RX queues common config */
171 if (of_property_read_u32(rx_node, "snps,rx-queues-to-use",
172 &plat->rx_queues_to_use))
173 plat->rx_queues_to_use = 1;
175 if (of_property_read_bool(rx_node, "snps,rx-sched-sp"))
176 plat->rx_sched_algorithm = MTL_RX_ALGORITHM_SP;
177 else if (of_property_read_bool(rx_node, "snps,rx-sched-wsp"))
178 plat->rx_sched_algorithm = MTL_RX_ALGORITHM_WSP;
180 plat->rx_sched_algorithm = MTL_RX_ALGORITHM_SP;
182 /* Processing individual RX queue config */
183 for_each_child_of_node(rx_node, q_node) {
184 if (queue >= plat->rx_queues_to_use)
187 if (of_property_read_bool(q_node, "snps,dcb-algorithm"))
188 plat->rx_queues_cfg[queue].mode_to_use = MTL_QUEUE_DCB;
189 else if (of_property_read_bool(q_node, "snps,avb-algorithm"))
190 plat->rx_queues_cfg[queue].mode_to_use = MTL_QUEUE_AVB;
192 plat->rx_queues_cfg[queue].mode_to_use = MTL_QUEUE_DCB;
194 if (of_property_read_u32(q_node, "snps,map-to-dma-channel",
195 &plat->rx_queues_cfg[queue].chan))
196 plat->rx_queues_cfg[queue].chan = queue;
197 /* TODO: Dynamic mapping to be included in the future */
199 if (of_property_read_u32(q_node, "snps,priority",
200 &plat->rx_queues_cfg[queue].prio)) {
201 plat->rx_queues_cfg[queue].prio = 0;
202 plat->rx_queues_cfg[queue].use_prio = false;
204 plat->rx_queues_cfg[queue].use_prio = true;
207 /* RX queue specific packet type routing */
208 if (of_property_read_bool(q_node, "snps,route-avcp"))
209 plat->rx_queues_cfg[queue].pkt_route = PACKET_AVCPQ;
210 else if (of_property_read_bool(q_node, "snps,route-ptp"))
211 plat->rx_queues_cfg[queue].pkt_route = PACKET_PTPQ;
212 else if (of_property_read_bool(q_node, "snps,route-dcbcp"))
213 plat->rx_queues_cfg[queue].pkt_route = PACKET_DCBCPQ;
214 else if (of_property_read_bool(q_node, "snps,route-up"))
215 plat->rx_queues_cfg[queue].pkt_route = PACKET_UPQ;
216 else if (of_property_read_bool(q_node, "snps,route-multi-broad"))
217 plat->rx_queues_cfg[queue].pkt_route = PACKET_MCBCQ;
219 plat->rx_queues_cfg[queue].pkt_route = 0x0;
223 if (queue != plat->rx_queues_to_use) {
225 dev_err(&pdev->dev, "Not all RX queues were configured\n");
229 /* Processing TX queues common config */
230 if (of_property_read_u32(tx_node, "snps,tx-queues-to-use",
231 &plat->tx_queues_to_use))
232 plat->tx_queues_to_use = 1;
234 if (of_property_read_bool(tx_node, "snps,tx-sched-wrr"))
235 plat->tx_sched_algorithm = MTL_TX_ALGORITHM_WRR;
236 else if (of_property_read_bool(tx_node, "snps,tx-sched-wfq"))
237 plat->tx_sched_algorithm = MTL_TX_ALGORITHM_WFQ;
238 else if (of_property_read_bool(tx_node, "snps,tx-sched-dwrr"))
239 plat->tx_sched_algorithm = MTL_TX_ALGORITHM_DWRR;
240 else if (of_property_read_bool(tx_node, "snps,tx-sched-sp"))
241 plat->tx_sched_algorithm = MTL_TX_ALGORITHM_SP;
243 plat->tx_sched_algorithm = MTL_TX_ALGORITHM_SP;
247 /* Processing individual TX queue config */
248 for_each_child_of_node(tx_node, q_node) {
249 if (queue >= plat->tx_queues_to_use)
252 if (of_property_read_u32(q_node, "snps,weight",
253 &plat->tx_queues_cfg[queue].weight))
254 plat->tx_queues_cfg[queue].weight = 0x10 + queue;
256 if (of_property_read_bool(q_node, "snps,dcb-algorithm")) {
257 plat->tx_queues_cfg[queue].mode_to_use = MTL_QUEUE_DCB;
258 } else if (of_property_read_bool(q_node,
259 "snps,avb-algorithm")) {
260 plat->tx_queues_cfg[queue].mode_to_use = MTL_QUEUE_AVB;
262 /* Credit Base Shaper parameters used by AVB */
263 if (of_property_read_u32(q_node, "snps,send_slope",
264 &plat->tx_queues_cfg[queue].send_slope))
265 plat->tx_queues_cfg[queue].send_slope = 0x0;
266 if (of_property_read_u32(q_node, "snps,idle_slope",
267 &plat->tx_queues_cfg[queue].idle_slope))
268 plat->tx_queues_cfg[queue].idle_slope = 0x0;
269 if (of_property_read_u32(q_node, "snps,high_credit",
270 &plat->tx_queues_cfg[queue].high_credit))
271 plat->tx_queues_cfg[queue].high_credit = 0x0;
272 if (of_property_read_u32(q_node, "snps,low_credit",
273 &plat->tx_queues_cfg[queue].low_credit))
274 plat->tx_queues_cfg[queue].low_credit = 0x0;
276 plat->tx_queues_cfg[queue].mode_to_use = MTL_QUEUE_DCB;
279 if (of_property_read_u32(q_node, "snps,priority",
280 &plat->tx_queues_cfg[queue].prio)) {
281 plat->tx_queues_cfg[queue].prio = 0;
282 plat->tx_queues_cfg[queue].use_prio = false;
284 plat->tx_queues_cfg[queue].use_prio = true;
289 if (queue != plat->tx_queues_to_use) {
291 dev_err(&pdev->dev, "Not all TX queues were configured\n");
296 of_node_put(rx_node);
297 of_node_put(tx_node);
304 * stmmac_dt_phy - parse device-tree driver parameters to allocate PHY resources
305 * @plat: driver data platform structure
306 * @np: device tree node
307 * @dev: device pointer
309 * The mdio bus will be allocated in case of a phy transceiver is on board;
310 * it will be NULL if the fixed-link is configured.
311 * If there is the "snps,dwmac-mdio" sub-node the mdio will be allocated
312 * in any case (for DSA, mdio must be registered even if fixed-link).
313 * The table below sums the supported configurations:
314 * -------------------------------
316 * -------------------------------
318 * -------------------------------
320 * -------------------------------
324 * -------------------------------
326 * It returns 0 in case of success otherwise -ENODEV.
328 static int stmmac_dt_phy(struct plat_stmmacenet_data *plat,
329 struct device_node *np, struct device *dev)
332 static const struct of_device_id need_mdio_ids[] = {
333 { .compatible = "snps,dwc-qos-ethernet-4.10" },
337 /* If phy-handle property is passed from DT, use it as the PHY */
338 plat->phy_node = of_parse_phandle(np, "phy-handle", 0);
340 dev_dbg(dev, "Found phy-handle subnode\n");
342 /* If phy-handle is not specified, check if we have a fixed-phy */
343 if (!plat->phy_node && of_phy_is_fixed_link(np)) {
344 if ((of_phy_register_fixed_link(np) < 0))
347 dev_dbg(dev, "Found fixed-link subnode\n");
348 plat->phy_node = of_node_get(np);
352 if (of_match_node(need_mdio_ids, np)) {
353 plat->mdio_node = of_get_child_by_name(np, "mdio");
356 * If snps,dwmac-mdio is passed from DT, always register
359 for_each_child_of_node(np, plat->mdio_node) {
360 if (of_device_is_compatible(plat->mdio_node,
366 if (plat->mdio_node) {
367 dev_dbg(dev, "Found MDIO subnode\n");
372 plat->mdio_bus_data =
373 devm_kzalloc(dev, sizeof(struct stmmac_mdio_bus_data),
379 * stmmac_probe_config_dt - parse device-tree driver parameters
380 * @pdev: platform_device structure
381 * @mac: MAC address to use
383 * this function is to read the driver parameters from device-tree and
384 * set some private fields that will be used by the main at runtime.
386 struct plat_stmmacenet_data *
387 stmmac_probe_config_dt(struct platform_device *pdev, const char **mac)
389 struct device_node *np = pdev->dev.of_node;
390 struct plat_stmmacenet_data *plat;
391 struct stmmac_dma_cfg *dma_cfg;
394 plat = devm_kzalloc(&pdev->dev, sizeof(*plat), GFP_KERNEL);
396 return ERR_PTR(-ENOMEM);
398 *mac = of_get_mac_address(np);
399 plat->interface = of_get_phy_mode(np);
401 /* Get max speed of operation from device tree */
402 if (of_property_read_u32(np, "max-speed", &plat->max_speed))
403 plat->max_speed = -1;
405 plat->bus_id = of_alias_get_id(np, "ethernet");
406 if (plat->bus_id < 0)
409 /* Default to phy auto-detection */
412 /* "snps,phy-addr" is not a standard property. Mark it as deprecated
413 * and warn of its use. Remove this when phy node support is added.
415 if (of_property_read_u32(np, "snps,phy-addr", &plat->phy_addr) == 0)
416 dev_warn(&pdev->dev, "snps,phy-addr property is deprecated\n");
418 /* To Configure PHY by using all device-tree supported properties */
419 rc = stmmac_dt_phy(plat, np, &pdev->dev);
423 of_property_read_u32(np, "tx-fifo-depth", &plat->tx_fifo_size);
425 of_property_read_u32(np, "rx-fifo-depth", &plat->rx_fifo_size);
427 plat->force_sf_dma_mode =
428 of_property_read_bool(np, "snps,force_sf_dma_mode");
430 plat->en_tx_lpi_clockgating =
431 of_property_read_bool(np, "snps,en-tx-lpi-clockgating");
433 /* Set the maxmtu to a default of JUMBO_LEN in case the
434 * parameter is not present in the device tree.
436 plat->maxmtu = JUMBO_LEN;
438 /* Set default value for multicast hash bins */
439 plat->multicast_filter_bins = HASH_TABLE_SIZE;
441 /* Set default value for unicast filter entries */
442 plat->unicast_filter_entries = 1;
445 * Currently only the properties needed on SPEAr600
446 * are provided. All other properties should be added
447 * once needed on other platforms.
449 if (of_device_is_compatible(np, "st,spear600-gmac") ||
450 of_device_is_compatible(np, "snps,dwmac-3.50a") ||
451 of_device_is_compatible(np, "snps,dwmac-3.70a") ||
452 of_device_is_compatible(np, "snps,dwmac")) {
453 /* Note that the max-frame-size parameter as defined in the
454 * ePAPR v1.1 spec is defined as max-frame-size, it's
455 * actually used as the IEEE definition of MAC Client
456 * data, or MTU. The ePAPR specification is confusing as
457 * the definition is max-frame-size, but usage examples
460 of_property_read_u32(np, "max-frame-size", &plat->maxmtu);
461 of_property_read_u32(np, "snps,multicast-filter-bins",
462 &plat->multicast_filter_bins);
463 of_property_read_u32(np, "snps,perfect-filter-entries",
464 &plat->unicast_filter_entries);
465 plat->unicast_filter_entries = dwmac1000_validate_ucast_entries(
466 plat->unicast_filter_entries);
467 plat->multicast_filter_bins = dwmac1000_validate_mcast_bins(
468 plat->multicast_filter_bins);
473 if (of_device_is_compatible(np, "snps,dwmac-4.00") ||
474 of_device_is_compatible(np, "snps,dwmac-4.10a") ||
475 of_device_is_compatible(np, "snps,dwmac-4.20a")) {
479 plat->tso_en = of_property_read_bool(np, "snps,tso");
482 if (of_device_is_compatible(np, "snps,dwmac-3.610") ||
483 of_device_is_compatible(np, "snps,dwmac-3.710")) {
485 plat->bugged_jumbo = 1;
486 plat->force_sf_dma_mode = 1;
489 dma_cfg = devm_kzalloc(&pdev->dev, sizeof(*dma_cfg),
492 stmmac_remove_config_dt(pdev, plat);
493 return ERR_PTR(-ENOMEM);
495 plat->dma_cfg = dma_cfg;
497 of_property_read_u32(np, "snps,pbl", &dma_cfg->pbl);
499 dma_cfg->pbl = DEFAULT_DMA_PBL;
500 of_property_read_u32(np, "snps,txpbl", &dma_cfg->txpbl);
501 of_property_read_u32(np, "snps,rxpbl", &dma_cfg->rxpbl);
502 dma_cfg->pblx8 = !of_property_read_bool(np, "snps,no-pbl-x8");
504 dma_cfg->aal = of_property_read_bool(np, "snps,aal");
505 dma_cfg->fixed_burst = of_property_read_bool(np, "snps,fixed-burst");
506 dma_cfg->mixed_burst = of_property_read_bool(np, "snps,mixed-burst");
508 plat->force_thresh_dma_mode = of_property_read_bool(np, "snps,force_thresh_dma_mode");
509 if (plat->force_thresh_dma_mode) {
510 plat->force_sf_dma_mode = 0;
511 pr_warn("force_sf_dma_mode is ignored if force_thresh_dma_mode is set.");
514 of_property_read_u32(np, "snps,ps-speed", &plat->mac_port_sel_speed);
516 plat->axi = stmmac_axi_setup(pdev);
518 rc = stmmac_mtl_setup(pdev, plat);
520 stmmac_remove_config_dt(pdev, plat);
525 plat->stmmac_clk = devm_clk_get(&pdev->dev,
526 STMMAC_RESOURCE_NAME);
527 if (IS_ERR(plat->stmmac_clk)) {
528 dev_warn(&pdev->dev, "Cannot get CSR clock\n");
529 plat->stmmac_clk = NULL;
531 clk_prepare_enable(plat->stmmac_clk);
533 plat->pclk = devm_clk_get(&pdev->dev, "pclk");
534 if (IS_ERR(plat->pclk)) {
535 if (PTR_ERR(plat->pclk) == -EPROBE_DEFER)
540 clk_prepare_enable(plat->pclk);
542 /* Fall-back to main clock in case of no PTP ref is passed */
543 plat->clk_ptp_ref = devm_clk_get(&pdev->dev, "ptp_ref");
544 if (IS_ERR(plat->clk_ptp_ref)) {
545 plat->clk_ptp_rate = clk_get_rate(plat->stmmac_clk);
546 plat->clk_ptp_ref = NULL;
547 dev_warn(&pdev->dev, "PTP uses main clock\n");
549 plat->clk_ptp_rate = clk_get_rate(plat->clk_ptp_ref);
550 dev_dbg(&pdev->dev, "PTP rate %d\n", plat->clk_ptp_rate);
553 plat->stmmac_rst = devm_reset_control_get(&pdev->dev,
554 STMMAC_RESOURCE_NAME);
555 if (IS_ERR(plat->stmmac_rst)) {
556 if (PTR_ERR(plat->stmmac_rst) == -EPROBE_DEFER)
559 dev_info(&pdev->dev, "no reset control found\n");
560 plat->stmmac_rst = NULL;
566 clk_disable_unprepare(plat->pclk);
568 clk_disable_unprepare(plat->stmmac_clk);
570 return ERR_PTR(-EPROBE_DEFER);
574 * stmmac_remove_config_dt - undo the effects of stmmac_probe_config_dt()
575 * @pdev: platform_device structure
576 * @plat: driver data platform structure
578 * Release resources claimed by stmmac_probe_config_dt().
580 void stmmac_remove_config_dt(struct platform_device *pdev,
581 struct plat_stmmacenet_data *plat)
583 struct device_node *np = pdev->dev.of_node;
585 if (of_phy_is_fixed_link(np))
586 of_phy_deregister_fixed_link(np);
587 of_node_put(plat->phy_node);
588 of_node_put(plat->mdio_node);
591 struct plat_stmmacenet_data *
592 stmmac_probe_config_dt(struct platform_device *pdev, const char **mac)
594 return ERR_PTR(-EINVAL);
597 void stmmac_remove_config_dt(struct platform_device *pdev,
598 struct plat_stmmacenet_data *plat)
601 #endif /* CONFIG_OF */
602 EXPORT_SYMBOL_GPL(stmmac_probe_config_dt);
603 EXPORT_SYMBOL_GPL(stmmac_remove_config_dt);
605 int stmmac_get_platform_resources(struct platform_device *pdev,
606 struct stmmac_resources *stmmac_res)
608 struct resource *res;
610 memset(stmmac_res, 0, sizeof(*stmmac_res));
612 /* Get IRQ information early to have an ability to ask for deferred
613 * probe if needed before we went too far with resource allocation.
615 stmmac_res->irq = platform_get_irq_byname(pdev, "macirq");
616 if (stmmac_res->irq < 0) {
617 if (stmmac_res->irq != -EPROBE_DEFER) {
619 "MAC IRQ configuration information not found\n");
621 return stmmac_res->irq;
624 /* On some platforms e.g. SPEAr the wake up irq differs from the mac irq
625 * The external wake up irq can be passed through the platform code
626 * named as "eth_wake_irq"
628 * In case the wake up interrupt is not passed from the platform
629 * so the driver will continue to use the mac irq (ndev->irq)
631 stmmac_res->wol_irq = platform_get_irq_byname(pdev, "eth_wake_irq");
632 if (stmmac_res->wol_irq < 0) {
633 if (stmmac_res->wol_irq == -EPROBE_DEFER)
634 return -EPROBE_DEFER;
635 stmmac_res->wol_irq = stmmac_res->irq;
638 stmmac_res->lpi_irq = platform_get_irq_byname(pdev, "eth_lpi");
639 if (stmmac_res->lpi_irq == -EPROBE_DEFER)
640 return -EPROBE_DEFER;
642 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
643 stmmac_res->addr = devm_ioremap_resource(&pdev->dev, res);
645 return PTR_ERR_OR_ZERO(stmmac_res->addr);
647 EXPORT_SYMBOL_GPL(stmmac_get_platform_resources);
650 * stmmac_pltfr_remove
651 * @pdev: platform device pointer
652 * Description: this function calls the main to free the net resources
653 * and calls the platforms hook and release the resources (e.g. mem).
655 int stmmac_pltfr_remove(struct platform_device *pdev)
657 struct net_device *ndev = platform_get_drvdata(pdev);
658 struct stmmac_priv *priv = netdev_priv(ndev);
659 struct plat_stmmacenet_data *plat = priv->plat;
660 int ret = stmmac_dvr_remove(&pdev->dev);
663 plat->exit(pdev, plat->bsp_priv);
665 stmmac_remove_config_dt(pdev, plat);
669 EXPORT_SYMBOL_GPL(stmmac_pltfr_remove);
671 #ifdef CONFIG_PM_SLEEP
673 * stmmac_pltfr_suspend
674 * @dev: device pointer
675 * Description: this function is invoked when suspend the driver and it direcly
676 * call the main suspend function and then, if required, on some platform, it
677 * can call an exit helper.
679 static int stmmac_pltfr_suspend(struct device *dev)
682 struct net_device *ndev = dev_get_drvdata(dev);
683 struct stmmac_priv *priv = netdev_priv(ndev);
684 struct platform_device *pdev = to_platform_device(dev);
686 ret = stmmac_suspend(dev);
687 if (priv->plat->exit)
688 priv->plat->exit(pdev, priv->plat->bsp_priv);
694 * stmmac_pltfr_resume
695 * @dev: device pointer
696 * Description: this function is invoked when resume the driver before calling
697 * the main resume function, on some platforms, it can call own init helper
700 static int stmmac_pltfr_resume(struct device *dev)
702 struct net_device *ndev = dev_get_drvdata(dev);
703 struct stmmac_priv *priv = netdev_priv(ndev);
704 struct platform_device *pdev = to_platform_device(dev);
706 if (priv->plat->init)
707 priv->plat->init(pdev, priv->plat->bsp_priv);
709 return stmmac_resume(dev);
711 #endif /* CONFIG_PM_SLEEP */
713 SIMPLE_DEV_PM_OPS(stmmac_pltfr_pm_ops, stmmac_pltfr_suspend,
714 stmmac_pltfr_resume);
715 EXPORT_SYMBOL_GPL(stmmac_pltfr_pm_ops);
717 MODULE_DESCRIPTION("STMMAC 10/100/1000 Ethernet platform support");
718 MODULE_AUTHOR("Giuseppe Cavallaro <peppe.cavallaro@st.com>");
719 MODULE_LICENSE("GPL");