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;
86 pr_info("Unicast table entries set to unexpected value %d\n",
94 * stmmac_axi_setup - parse DT parameters for programming the AXI register
95 * @pdev: platform device
96 * @priv: driver private struct.
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 void 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;
145 /* For backwards-compatibility with device trees that don't have any
146 * snps,mtl-rx-config or snps,mtl-tx-config properties, we fall back
147 * to one RX and TX queues each.
149 plat->rx_queues_to_use = 1;
150 plat->tx_queues_to_use = 1;
152 /* First Queue must always be in DCB mode. As MTL_QUEUE_DCB = 1 we need
153 * to always set this, otherwise Queue will be classified as AVB
154 * (because MTL_QUEUE_AVB = 0).
156 plat->rx_queues_cfg[0].mode_to_use = MTL_QUEUE_DCB;
157 plat->tx_queues_cfg[0].mode_to_use = MTL_QUEUE_DCB;
159 rx_node = of_parse_phandle(pdev->dev.of_node, "snps,mtl-rx-config", 0);
163 tx_node = of_parse_phandle(pdev->dev.of_node, "snps,mtl-tx-config", 0);
165 of_node_put(rx_node);
169 /* Processing RX queues common config */
170 if (of_property_read_u32(rx_node, "snps,rx-queues-to-use",
171 &plat->rx_queues_to_use))
172 plat->rx_queues_to_use = 1;
174 if (of_property_read_bool(rx_node, "snps,rx-sched-sp"))
175 plat->rx_sched_algorithm = MTL_RX_ALGORITHM_SP;
176 else if (of_property_read_bool(rx_node, "snps,rx-sched-wsp"))
177 plat->rx_sched_algorithm = MTL_RX_ALGORITHM_WSP;
179 plat->rx_sched_algorithm = MTL_RX_ALGORITHM_SP;
181 /* Processing individual RX queue config */
182 for_each_child_of_node(rx_node, q_node) {
183 if (queue >= plat->rx_queues_to_use)
186 if (of_property_read_bool(q_node, "snps,dcb-algorithm"))
187 plat->rx_queues_cfg[queue].mode_to_use = MTL_QUEUE_DCB;
188 else if (of_property_read_bool(q_node, "snps,avb-algorithm"))
189 plat->rx_queues_cfg[queue].mode_to_use = MTL_QUEUE_AVB;
191 plat->rx_queues_cfg[queue].mode_to_use = MTL_QUEUE_DCB;
193 if (of_property_read_u32(q_node, "snps,map-to-dma-channel",
194 &plat->rx_queues_cfg[queue].chan))
195 plat->rx_queues_cfg[queue].chan = queue;
196 /* TODO: Dynamic mapping to be included in the future */
198 if (of_property_read_u32(q_node, "snps,priority",
199 &plat->rx_queues_cfg[queue].prio)) {
200 plat->rx_queues_cfg[queue].prio = 0;
201 plat->rx_queues_cfg[queue].use_prio = false;
203 plat->rx_queues_cfg[queue].use_prio = true;
206 /* RX queue specific packet type routing */
207 if (of_property_read_bool(q_node, "snps,route-avcp"))
208 plat->rx_queues_cfg[queue].pkt_route = PACKET_AVCPQ;
209 else if (of_property_read_bool(q_node, "snps,route-ptp"))
210 plat->rx_queues_cfg[queue].pkt_route = PACKET_PTPQ;
211 else if (of_property_read_bool(q_node, "snps,route-dcbcp"))
212 plat->rx_queues_cfg[queue].pkt_route = PACKET_DCBCPQ;
213 else if (of_property_read_bool(q_node, "snps,route-up"))
214 plat->rx_queues_cfg[queue].pkt_route = PACKET_UPQ;
215 else if (of_property_read_bool(q_node, "snps,route-multi-broad"))
216 plat->rx_queues_cfg[queue].pkt_route = PACKET_MCBCQ;
218 plat->rx_queues_cfg[queue].pkt_route = 0x0;
223 /* Processing TX queues common config */
224 if (of_property_read_u32(tx_node, "snps,tx-queues-to-use",
225 &plat->tx_queues_to_use))
226 plat->tx_queues_to_use = 1;
228 if (of_property_read_bool(tx_node, "snps,tx-sched-wrr"))
229 plat->tx_sched_algorithm = MTL_TX_ALGORITHM_WRR;
230 else if (of_property_read_bool(tx_node, "snps,tx-sched-wfq"))
231 plat->tx_sched_algorithm = MTL_TX_ALGORITHM_WFQ;
232 else if (of_property_read_bool(tx_node, "snps,tx-sched-dwrr"))
233 plat->tx_sched_algorithm = MTL_TX_ALGORITHM_DWRR;
234 else if (of_property_read_bool(tx_node, "snps,tx-sched-sp"))
235 plat->tx_sched_algorithm = MTL_TX_ALGORITHM_SP;
237 plat->tx_sched_algorithm = MTL_TX_ALGORITHM_SP;
241 /* Processing individual TX queue config */
242 for_each_child_of_node(tx_node, q_node) {
243 if (queue >= plat->tx_queues_to_use)
246 if (of_property_read_u32(q_node, "snps,weight",
247 &plat->tx_queues_cfg[queue].weight))
248 plat->tx_queues_cfg[queue].weight = 0x10 + queue;
250 if (of_property_read_bool(q_node, "snps,dcb-algorithm")) {
251 plat->tx_queues_cfg[queue].mode_to_use = MTL_QUEUE_DCB;
252 } else if (of_property_read_bool(q_node,
253 "snps,avb-algorithm")) {
254 plat->tx_queues_cfg[queue].mode_to_use = MTL_QUEUE_AVB;
256 /* Credit Base Shaper parameters used by AVB */
257 if (of_property_read_u32(q_node, "snps,send_slope",
258 &plat->tx_queues_cfg[queue].send_slope))
259 plat->tx_queues_cfg[queue].send_slope = 0x0;
260 if (of_property_read_u32(q_node, "snps,idle_slope",
261 &plat->tx_queues_cfg[queue].idle_slope))
262 plat->tx_queues_cfg[queue].idle_slope = 0x0;
263 if (of_property_read_u32(q_node, "snps,high_credit",
264 &plat->tx_queues_cfg[queue].high_credit))
265 plat->tx_queues_cfg[queue].high_credit = 0x0;
266 if (of_property_read_u32(q_node, "snps,low_credit",
267 &plat->tx_queues_cfg[queue].low_credit))
268 plat->tx_queues_cfg[queue].low_credit = 0x0;
270 plat->tx_queues_cfg[queue].mode_to_use = MTL_QUEUE_DCB;
273 if (of_property_read_u32(q_node, "snps,priority",
274 &plat->tx_queues_cfg[queue].prio)) {
275 plat->tx_queues_cfg[queue].prio = 0;
276 plat->tx_queues_cfg[queue].use_prio = false;
278 plat->tx_queues_cfg[queue].use_prio = true;
284 of_node_put(rx_node);
285 of_node_put(tx_node);
290 * stmmac_dt_phy - parse device-tree driver parameters to allocate PHY resources
291 * @plat: driver data platform structure
292 * @np: device tree node
293 * @dev: device pointer
295 * The mdio bus will be allocated in case of a phy transceiver is on board;
296 * it will be NULL if the fixed-link is configured.
297 * If there is the "snps,dwmac-mdio" sub-node the mdio will be allocated
298 * in any case (for DSA, mdio must be registered even if fixed-link).
299 * The table below sums the supported configurations:
300 * -------------------------------
302 * -------------------------------
304 * -------------------------------
306 * -------------------------------
310 * -------------------------------
312 * It returns 0 in case of success otherwise -ENODEV.
314 static int stmmac_dt_phy(struct plat_stmmacenet_data *plat,
315 struct device_node *np, struct device *dev)
318 static const struct of_device_id need_mdio_ids[] = {
319 { .compatible = "snps,dwc-qos-ethernet-4.10" },
320 { .compatible = "allwinner,sun8i-a83t-emac" },
321 { .compatible = "allwinner,sun8i-h3-emac" },
322 { .compatible = "allwinner,sun8i-v3s-emac" },
323 { .compatible = "allwinner,sun50i-a64-emac" },
327 /* If phy-handle property is passed from DT, use it as the PHY */
328 plat->phy_node = of_parse_phandle(np, "phy-handle", 0);
330 dev_dbg(dev, "Found phy-handle subnode\n");
332 /* If phy-handle is not specified, check if we have a fixed-phy */
333 if (!plat->phy_node && of_phy_is_fixed_link(np)) {
334 if ((of_phy_register_fixed_link(np) < 0))
337 dev_dbg(dev, "Found fixed-link subnode\n");
338 plat->phy_node = of_node_get(np);
342 if (of_match_node(need_mdio_ids, np)) {
343 plat->mdio_node = of_get_child_by_name(np, "mdio");
346 * If snps,dwmac-mdio is passed from DT, always register
349 for_each_child_of_node(np, plat->mdio_node) {
350 if (of_device_is_compatible(plat->mdio_node,
356 if (plat->mdio_node) {
357 dev_dbg(dev, "Found MDIO subnode\n");
362 plat->mdio_bus_data =
363 devm_kzalloc(dev, sizeof(struct stmmac_mdio_bus_data),
369 * stmmac_probe_config_dt - parse device-tree driver parameters
370 * @pdev: platform_device structure
371 * @mac: MAC address to use
373 * this function is to read the driver parameters from device-tree and
374 * set some private fields that will be used by the main at runtime.
376 struct plat_stmmacenet_data *
377 stmmac_probe_config_dt(struct platform_device *pdev, const char **mac)
379 struct device_node *np = pdev->dev.of_node;
380 struct plat_stmmacenet_data *plat;
381 struct stmmac_dma_cfg *dma_cfg;
383 plat = devm_kzalloc(&pdev->dev, sizeof(*plat), GFP_KERNEL);
385 return ERR_PTR(-ENOMEM);
387 *mac = of_get_mac_address(np);
388 plat->interface = of_get_phy_mode(np);
390 /* Get max speed of operation from device tree */
391 if (of_property_read_u32(np, "max-speed", &plat->max_speed))
392 plat->max_speed = -1;
394 plat->bus_id = of_alias_get_id(np, "ethernet");
395 if (plat->bus_id < 0)
398 /* Default to phy auto-detection */
401 /* "snps,phy-addr" is not a standard property. Mark it as deprecated
402 * and warn of its use. Remove this when phy node support is added.
404 if (of_property_read_u32(np, "snps,phy-addr", &plat->phy_addr) == 0)
405 dev_warn(&pdev->dev, "snps,phy-addr property is deprecated\n");
407 /* To Configure PHY by using all device-tree supported properties */
408 if (stmmac_dt_phy(plat, np, &pdev->dev))
409 return ERR_PTR(-ENODEV);
411 of_property_read_u32(np, "tx-fifo-depth", &plat->tx_fifo_size);
413 of_property_read_u32(np, "rx-fifo-depth", &plat->rx_fifo_size);
415 plat->force_sf_dma_mode =
416 of_property_read_bool(np, "snps,force_sf_dma_mode");
418 plat->en_tx_lpi_clockgating =
419 of_property_read_bool(np, "snps,en-tx-lpi-clockgating");
421 /* Set the maxmtu to a default of JUMBO_LEN in case the
422 * parameter is not present in the device tree.
424 plat->maxmtu = JUMBO_LEN;
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;
433 * Currently only the properties needed on SPEAr600
434 * are provided. All other properties should be added
435 * once needed on other platforms.
437 if (of_device_is_compatible(np, "st,spear600-gmac") ||
438 of_device_is_compatible(np, "snps,dwmac-3.50a") ||
439 of_device_is_compatible(np, "snps,dwmac-3.70a") ||
440 of_device_is_compatible(np, "snps,dwmac")) {
441 /* Note that the max-frame-size parameter as defined in the
442 * ePAPR v1.1 spec is defined as max-frame-size, it's
443 * actually used as the IEEE definition of MAC Client
444 * data, or MTU. The ePAPR specification is confusing as
445 * the definition is max-frame-size, but usage examples
448 of_property_read_u32(np, "max-frame-size", &plat->maxmtu);
449 of_property_read_u32(np, "snps,multicast-filter-bins",
450 &plat->multicast_filter_bins);
451 of_property_read_u32(np, "snps,perfect-filter-entries",
452 &plat->unicast_filter_entries);
453 plat->unicast_filter_entries = dwmac1000_validate_ucast_entries(
454 plat->unicast_filter_entries);
455 plat->multicast_filter_bins = dwmac1000_validate_mcast_bins(
456 plat->multicast_filter_bins);
461 if (of_device_is_compatible(np, "snps,dwmac-4.00") ||
462 of_device_is_compatible(np, "snps,dwmac-4.10a")) {
466 plat->tso_en = of_property_read_bool(np, "snps,tso");
469 if (of_device_is_compatible(np, "snps,dwmac-3.610") ||
470 of_device_is_compatible(np, "snps,dwmac-3.710")) {
472 plat->bugged_jumbo = 1;
473 plat->force_sf_dma_mode = 1;
476 dma_cfg = devm_kzalloc(&pdev->dev, sizeof(*dma_cfg),
479 stmmac_remove_config_dt(pdev, plat);
480 return ERR_PTR(-ENOMEM);
482 plat->dma_cfg = dma_cfg;
484 of_property_read_u32(np, "snps,pbl", &dma_cfg->pbl);
486 dma_cfg->pbl = DEFAULT_DMA_PBL;
487 of_property_read_u32(np, "snps,txpbl", &dma_cfg->txpbl);
488 of_property_read_u32(np, "snps,rxpbl", &dma_cfg->rxpbl);
489 dma_cfg->pblx8 = !of_property_read_bool(np, "snps,no-pbl-x8");
491 dma_cfg->aal = of_property_read_bool(np, "snps,aal");
492 dma_cfg->fixed_burst = of_property_read_bool(np, "snps,fixed-burst");
493 dma_cfg->mixed_burst = of_property_read_bool(np, "snps,mixed-burst");
495 plat->force_thresh_dma_mode = of_property_read_bool(np, "snps,force_thresh_dma_mode");
496 if (plat->force_thresh_dma_mode) {
497 plat->force_sf_dma_mode = 0;
498 pr_warn("force_sf_dma_mode is ignored if force_thresh_dma_mode is set.");
501 of_property_read_u32(np, "snps,ps-speed", &plat->mac_port_sel_speed);
503 plat->axi = stmmac_axi_setup(pdev);
505 stmmac_mtl_setup(pdev, plat);
508 plat->stmmac_clk = devm_clk_get(&pdev->dev,
509 STMMAC_RESOURCE_NAME);
510 if (IS_ERR(plat->stmmac_clk)) {
511 dev_warn(&pdev->dev, "Cannot get CSR clock\n");
512 plat->stmmac_clk = NULL;
514 clk_prepare_enable(plat->stmmac_clk);
516 plat->pclk = devm_clk_get(&pdev->dev, "pclk");
517 if (IS_ERR(plat->pclk)) {
518 if (PTR_ERR(plat->pclk) == -EPROBE_DEFER)
523 clk_prepare_enable(plat->pclk);
525 /* Fall-back to main clock in case of no PTP ref is passed */
526 plat->clk_ptp_ref = devm_clk_get(&pdev->dev, "ptp_ref");
527 if (IS_ERR(plat->clk_ptp_ref)) {
528 plat->clk_ptp_rate = clk_get_rate(plat->stmmac_clk);
529 plat->clk_ptp_ref = NULL;
530 dev_warn(&pdev->dev, "PTP uses main clock\n");
532 plat->clk_ptp_rate = clk_get_rate(plat->clk_ptp_ref);
533 dev_dbg(&pdev->dev, "PTP rate %d\n", plat->clk_ptp_rate);
536 plat->stmmac_rst = devm_reset_control_get(&pdev->dev,
537 STMMAC_RESOURCE_NAME);
538 if (IS_ERR(plat->stmmac_rst)) {
539 if (PTR_ERR(plat->stmmac_rst) == -EPROBE_DEFER)
542 dev_info(&pdev->dev, "no reset control found\n");
543 plat->stmmac_rst = NULL;
549 clk_disable_unprepare(plat->pclk);
551 clk_disable_unprepare(plat->stmmac_clk);
553 return ERR_PTR(-EPROBE_DEFER);
557 * stmmac_remove_config_dt - undo the effects of stmmac_probe_config_dt()
558 * @pdev: platform_device structure
559 * @plat: driver data platform structure
561 * Release resources claimed by stmmac_probe_config_dt().
563 void stmmac_remove_config_dt(struct platform_device *pdev,
564 struct plat_stmmacenet_data *plat)
566 struct device_node *np = pdev->dev.of_node;
568 if (of_phy_is_fixed_link(np))
569 of_phy_deregister_fixed_link(np);
570 of_node_put(plat->phy_node);
571 of_node_put(plat->mdio_node);
574 struct plat_stmmacenet_data *
575 stmmac_probe_config_dt(struct platform_device *pdev, const char **mac)
577 return ERR_PTR(-EINVAL);
580 void stmmac_remove_config_dt(struct platform_device *pdev,
581 struct plat_stmmacenet_data *plat)
584 #endif /* CONFIG_OF */
585 EXPORT_SYMBOL_GPL(stmmac_probe_config_dt);
586 EXPORT_SYMBOL_GPL(stmmac_remove_config_dt);
588 int stmmac_get_platform_resources(struct platform_device *pdev,
589 struct stmmac_resources *stmmac_res)
591 struct resource *res;
593 memset(stmmac_res, 0, sizeof(*stmmac_res));
595 /* Get IRQ information early to have an ability to ask for deferred
596 * probe if needed before we went too far with resource allocation.
598 stmmac_res->irq = platform_get_irq_byname(pdev, "macirq");
599 if (stmmac_res->irq < 0) {
600 if (stmmac_res->irq != -EPROBE_DEFER) {
602 "MAC IRQ configuration information not found\n");
604 return stmmac_res->irq;
607 /* On some platforms e.g. SPEAr the wake up irq differs from the mac irq
608 * The external wake up irq can be passed through the platform code
609 * named as "eth_wake_irq"
611 * In case the wake up interrupt is not passed from the platform
612 * so the driver will continue to use the mac irq (ndev->irq)
614 stmmac_res->wol_irq = platform_get_irq_byname(pdev, "eth_wake_irq");
615 if (stmmac_res->wol_irq < 0) {
616 if (stmmac_res->wol_irq == -EPROBE_DEFER)
617 return -EPROBE_DEFER;
618 stmmac_res->wol_irq = stmmac_res->irq;
621 stmmac_res->lpi_irq = platform_get_irq_byname(pdev, "eth_lpi");
622 if (stmmac_res->lpi_irq == -EPROBE_DEFER)
623 return -EPROBE_DEFER;
625 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
626 stmmac_res->addr = devm_ioremap_resource(&pdev->dev, res);
628 return PTR_ERR_OR_ZERO(stmmac_res->addr);
630 EXPORT_SYMBOL_GPL(stmmac_get_platform_resources);
633 * stmmac_pltfr_remove
634 * @pdev: platform device pointer
635 * Description: this function calls the main to free the net resources
636 * and calls the platforms hook and release the resources (e.g. mem).
638 int stmmac_pltfr_remove(struct platform_device *pdev)
640 struct net_device *ndev = platform_get_drvdata(pdev);
641 struct stmmac_priv *priv = netdev_priv(ndev);
642 struct plat_stmmacenet_data *plat = priv->plat;
643 int ret = stmmac_dvr_remove(&pdev->dev);
646 plat->exit(pdev, plat->bsp_priv);
648 stmmac_remove_config_dt(pdev, plat);
652 EXPORT_SYMBOL_GPL(stmmac_pltfr_remove);
654 #ifdef CONFIG_PM_SLEEP
656 * stmmac_pltfr_suspend
657 * @dev: device pointer
658 * Description: this function is invoked when suspend the driver and it direcly
659 * call the main suspend function and then, if required, on some platform, it
660 * can call an exit helper.
662 static int stmmac_pltfr_suspend(struct device *dev)
665 struct net_device *ndev = dev_get_drvdata(dev);
666 struct stmmac_priv *priv = netdev_priv(ndev);
667 struct platform_device *pdev = to_platform_device(dev);
669 ret = stmmac_suspend(dev);
670 if (priv->plat->exit)
671 priv->plat->exit(pdev, priv->plat->bsp_priv);
677 * stmmac_pltfr_resume
678 * @dev: device pointer
679 * Description: this function is invoked when resume the driver before calling
680 * the main resume function, on some platforms, it can call own init helper
683 static int stmmac_pltfr_resume(struct device *dev)
685 struct net_device *ndev = dev_get_drvdata(dev);
686 struct stmmac_priv *priv = netdev_priv(ndev);
687 struct platform_device *pdev = to_platform_device(dev);
689 if (priv->plat->init)
690 priv->plat->init(pdev, priv->plat->bsp_priv);
692 return stmmac_resume(dev);
694 #endif /* CONFIG_PM_SLEEP */
696 SIMPLE_DEV_PM_OPS(stmmac_pltfr_pm_ops, stmmac_pltfr_suspend,
697 stmmac_pltfr_resume);
698 EXPORT_SYMBOL_GPL(stmmac_pltfr_pm_ops);
700 MODULE_DESCRIPTION("STMMAC 10/100/1000 Ethernet platform support");
701 MODULE_AUTHOR("Giuseppe Cavallaro <peppe.cavallaro@st.com>");
702 MODULE_LICENSE("GPL");