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
97 * @priv: driver private struct.
99 * if required, from device-tree the AXI internal register can be tuned
100 * by using platform parameters.
102 static struct stmmac_axi *stmmac_axi_setup(struct platform_device *pdev)
104 struct device_node *np;
105 struct stmmac_axi *axi;
107 np = of_parse_phandle(pdev->dev.of_node, "snps,axi-config", 0);
111 axi = devm_kzalloc(&pdev->dev, sizeof(*axi), GFP_KERNEL);
114 return ERR_PTR(-ENOMEM);
117 axi->axi_lpi_en = of_property_read_bool(np, "snps,lpi_en");
118 axi->axi_xit_frm = of_property_read_bool(np, "snps,xit_frm");
119 axi->axi_kbbe = of_property_read_bool(np, "snps,axi_kbbe");
120 axi->axi_fb = of_property_read_bool(np, "snps,axi_fb");
121 axi->axi_mb = of_property_read_bool(np, "snps,axi_mb");
122 axi->axi_rb = of_property_read_bool(np, "snps,axi_rb");
124 if (of_property_read_u32(np, "snps,wr_osr_lmt", &axi->axi_wr_osr_lmt))
125 axi->axi_wr_osr_lmt = 1;
126 if (of_property_read_u32(np, "snps,rd_osr_lmt", &axi->axi_rd_osr_lmt))
127 axi->axi_rd_osr_lmt = 1;
128 of_property_read_u32_array(np, "snps,blen", axi->axi_blen, AXI_BLEN);
135 * stmmac_mtl_setup - parse DT parameters for multiple queues configuration
136 * @pdev: platform device
138 static void stmmac_mtl_setup(struct platform_device *pdev,
139 struct plat_stmmacenet_data *plat)
141 struct device_node *q_node;
142 struct device_node *rx_node;
143 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 rx_node = of_parse_phandle(pdev->dev.of_node, "snps,mtl-rx-config", 0);
157 tx_node = of_parse_phandle(pdev->dev.of_node, "snps,mtl-tx-config", 0);
159 of_node_put(rx_node);
163 /* Processing RX queues common config */
164 if (of_property_read_u8(rx_node, "snps,rx-queues-to-use",
165 &plat->rx_queues_to_use))
166 plat->rx_queues_to_use = 1;
168 if (of_property_read_bool(rx_node, "snps,rx-sched-sp"))
169 plat->rx_sched_algorithm = MTL_RX_ALGORITHM_SP;
170 else if (of_property_read_bool(rx_node, "snps,rx-sched-wsp"))
171 plat->rx_sched_algorithm = MTL_RX_ALGORITHM_WSP;
173 plat->rx_sched_algorithm = MTL_RX_ALGORITHM_SP;
175 /* Processing individual RX queue config */
176 for_each_child_of_node(rx_node, q_node) {
177 if (queue >= plat->rx_queues_to_use)
180 if (of_property_read_bool(q_node, "snps,dcb-algorithm"))
181 plat->rx_queues_cfg[queue].mode_to_use = MTL_QUEUE_DCB;
182 else if (of_property_read_bool(q_node, "snps,avb-algorithm"))
183 plat->rx_queues_cfg[queue].mode_to_use = MTL_QUEUE_AVB;
185 plat->rx_queues_cfg[queue].mode_to_use = MTL_QUEUE_DCB;
187 if (of_property_read_u8(q_node, "snps,map-to-dma-channel",
188 &plat->rx_queues_cfg[queue].chan))
189 plat->rx_queues_cfg[queue].chan = queue;
190 /* TODO: Dynamic mapping to be included in the future */
192 if (of_property_read_u32(q_node, "snps,priority",
193 &plat->rx_queues_cfg[queue].prio)) {
194 plat->rx_queues_cfg[queue].prio = 0;
195 plat->rx_queues_cfg[queue].use_prio = false;
197 plat->rx_queues_cfg[queue].use_prio = true;
200 /* RX queue specific packet type routing */
201 if (of_property_read_bool(q_node, "snps,route-avcp"))
202 plat->rx_queues_cfg[queue].pkt_route = PACKET_AVCPQ;
203 else if (of_property_read_bool(q_node, "snps,route-ptp"))
204 plat->rx_queues_cfg[queue].pkt_route = PACKET_PTPQ;
205 else if (of_property_read_bool(q_node, "snps,route-dcbcp"))
206 plat->rx_queues_cfg[queue].pkt_route = PACKET_DCBCPQ;
207 else if (of_property_read_bool(q_node, "snps,route-up"))
208 plat->rx_queues_cfg[queue].pkt_route = PACKET_UPQ;
209 else if (of_property_read_bool(q_node, "snps,route-multi-broad"))
210 plat->rx_queues_cfg[queue].pkt_route = PACKET_MCBCQ;
212 plat->rx_queues_cfg[queue].pkt_route = 0x0;
217 /* Processing TX queues common config */
218 if (of_property_read_u8(tx_node, "snps,tx-queues-to-use",
219 &plat->tx_queues_to_use))
220 plat->tx_queues_to_use = 1;
222 if (of_property_read_bool(tx_node, "snps,tx-sched-wrr"))
223 plat->tx_sched_algorithm = MTL_TX_ALGORITHM_WRR;
224 else if (of_property_read_bool(tx_node, "snps,tx-sched-wfq"))
225 plat->tx_sched_algorithm = MTL_TX_ALGORITHM_WFQ;
226 else if (of_property_read_bool(tx_node, "snps,tx-sched-dwrr"))
227 plat->tx_sched_algorithm = MTL_TX_ALGORITHM_DWRR;
228 else if (of_property_read_bool(tx_node, "snps,tx-sched-sp"))
229 plat->tx_sched_algorithm = MTL_TX_ALGORITHM_SP;
231 plat->tx_sched_algorithm = MTL_TX_ALGORITHM_SP;
235 /* Processing individual TX queue config */
236 for_each_child_of_node(tx_node, q_node) {
237 if (queue >= plat->tx_queues_to_use)
240 if (of_property_read_u8(q_node, "snps,weight",
241 &plat->tx_queues_cfg[queue].weight))
242 plat->tx_queues_cfg[queue].weight = 0x10 + queue;
244 if (of_property_read_bool(q_node, "snps,dcb-algorithm")) {
245 plat->tx_queues_cfg[queue].mode_to_use = MTL_QUEUE_DCB;
246 } else if (of_property_read_bool(q_node,
247 "snps,avb-algorithm")) {
248 plat->tx_queues_cfg[queue].mode_to_use = MTL_QUEUE_AVB;
250 /* Credit Base Shaper parameters used by AVB */
251 if (of_property_read_u32(q_node, "snps,send_slope",
252 &plat->tx_queues_cfg[queue].send_slope))
253 plat->tx_queues_cfg[queue].send_slope = 0x0;
254 if (of_property_read_u32(q_node, "snps,idle_slope",
255 &plat->tx_queues_cfg[queue].idle_slope))
256 plat->tx_queues_cfg[queue].idle_slope = 0x0;
257 if (of_property_read_u32(q_node, "snps,high_credit",
258 &plat->tx_queues_cfg[queue].high_credit))
259 plat->tx_queues_cfg[queue].high_credit = 0x0;
260 if (of_property_read_u32(q_node, "snps,low_credit",
261 &plat->tx_queues_cfg[queue].low_credit))
262 plat->tx_queues_cfg[queue].low_credit = 0x0;
264 plat->tx_queues_cfg[queue].mode_to_use = MTL_QUEUE_DCB;
267 if (of_property_read_u32(q_node, "snps,priority",
268 &plat->tx_queues_cfg[queue].prio)) {
269 plat->tx_queues_cfg[queue].prio = 0;
270 plat->tx_queues_cfg[queue].use_prio = false;
272 plat->tx_queues_cfg[queue].use_prio = true;
278 of_node_put(rx_node);
279 of_node_put(tx_node);
284 * stmmac_dt_phy - parse device-tree driver parameters to allocate PHY resources
285 * @plat: driver data platform structure
286 * @np: device tree node
287 * @dev: device pointer
289 * The mdio bus will be allocated in case of a phy transceiver is on board;
290 * it will be NULL if the fixed-link is configured.
291 * If there is the "snps,dwmac-mdio" sub-node the mdio will be allocated
292 * in any case (for DSA, mdio must be registered even if fixed-link).
293 * The table below sums the supported configurations:
294 * -------------------------------
296 * -------------------------------
298 * -------------------------------
300 * -------------------------------
304 * -------------------------------
306 * It returns 0 in case of success otherwise -ENODEV.
308 static int stmmac_dt_phy(struct plat_stmmacenet_data *plat,
309 struct device_node *np, struct device *dev)
312 static const struct of_device_id need_mdio_ids[] = {
313 { .compatible = "snps,dwc-qos-ethernet-4.10" },
314 { .compatible = "allwinner,sun8i-a83t-emac" },
315 { .compatible = "allwinner,sun8i-h3-emac" },
316 { .compatible = "allwinner,sun8i-v3s-emac" },
317 { .compatible = "allwinner,sun50i-a64-emac" },
321 /* If phy-handle property is passed from DT, use it as the PHY */
322 plat->phy_node = of_parse_phandle(np, "phy-handle", 0);
324 dev_dbg(dev, "Found phy-handle subnode\n");
326 /* If phy-handle is not specified, check if we have a fixed-phy */
327 if (!plat->phy_node && of_phy_is_fixed_link(np)) {
328 if ((of_phy_register_fixed_link(np) < 0))
331 dev_dbg(dev, "Found fixed-link subnode\n");
332 plat->phy_node = of_node_get(np);
336 if (of_match_node(need_mdio_ids, np)) {
337 plat->mdio_node = of_get_child_by_name(np, "mdio");
340 * If snps,dwmac-mdio is passed from DT, always register
343 for_each_child_of_node(np, plat->mdio_node) {
344 if (of_device_is_compatible(plat->mdio_node,
350 if (plat->mdio_node) {
351 dev_dbg(dev, "Found MDIO subnode\n");
356 plat->mdio_bus_data =
357 devm_kzalloc(dev, sizeof(struct stmmac_mdio_bus_data),
363 * stmmac_probe_config_dt - parse device-tree driver parameters
364 * @pdev: platform_device structure
365 * @mac: MAC address to use
367 * this function is to read the driver parameters from device-tree and
368 * set some private fields that will be used by the main at runtime.
370 struct plat_stmmacenet_data *
371 stmmac_probe_config_dt(struct platform_device *pdev, const char **mac)
373 struct device_node *np = pdev->dev.of_node;
374 struct plat_stmmacenet_data *plat;
375 struct stmmac_dma_cfg *dma_cfg;
377 plat = devm_kzalloc(&pdev->dev, sizeof(*plat), GFP_KERNEL);
379 return ERR_PTR(-ENOMEM);
381 *mac = of_get_mac_address(np);
382 plat->interface = of_get_phy_mode(np);
384 /* Get max speed of operation from device tree */
385 if (of_property_read_u32(np, "max-speed", &plat->max_speed))
386 plat->max_speed = -1;
388 plat->bus_id = of_alias_get_id(np, "ethernet");
389 if (plat->bus_id < 0)
392 /* Default to phy auto-detection */
395 /* "snps,phy-addr" is not a standard property. Mark it as deprecated
396 * and warn of its use. Remove this when phy node support is added.
398 if (of_property_read_u32(np, "snps,phy-addr", &plat->phy_addr) == 0)
399 dev_warn(&pdev->dev, "snps,phy-addr property is deprecated\n");
401 /* To Configure PHY by using all device-tree supported properties */
402 if (stmmac_dt_phy(plat, np, &pdev->dev))
403 return ERR_PTR(-ENODEV);
405 of_property_read_u32(np, "tx-fifo-depth", &plat->tx_fifo_size);
407 of_property_read_u32(np, "rx-fifo-depth", &plat->rx_fifo_size);
409 plat->force_sf_dma_mode =
410 of_property_read_bool(np, "snps,force_sf_dma_mode");
412 plat->en_tx_lpi_clockgating =
413 of_property_read_bool(np, "snps,en-tx-lpi-clockgating");
415 /* Set the maxmtu to a default of JUMBO_LEN in case the
416 * parameter is not present in the device tree.
418 plat->maxmtu = JUMBO_LEN;
420 /* Set default value for multicast hash bins */
421 plat->multicast_filter_bins = HASH_TABLE_SIZE;
423 /* Set default value for unicast filter entries */
424 plat->unicast_filter_entries = 1;
427 * Currently only the properties needed on SPEAr600
428 * are provided. All other properties should be added
429 * once needed on other platforms.
431 if (of_device_is_compatible(np, "st,spear600-gmac") ||
432 of_device_is_compatible(np, "snps,dwmac-3.50a") ||
433 of_device_is_compatible(np, "snps,dwmac-3.70a") ||
434 of_device_is_compatible(np, "snps,dwmac")) {
435 /* Note that the max-frame-size parameter as defined in the
436 * ePAPR v1.1 spec is defined as max-frame-size, it's
437 * actually used as the IEEE definition of MAC Client
438 * data, or MTU. The ePAPR specification is confusing as
439 * the definition is max-frame-size, but usage examples
442 of_property_read_u32(np, "max-frame-size", &plat->maxmtu);
443 of_property_read_u32(np, "snps,multicast-filter-bins",
444 &plat->multicast_filter_bins);
445 of_property_read_u32(np, "snps,perfect-filter-entries",
446 &plat->unicast_filter_entries);
447 plat->unicast_filter_entries = dwmac1000_validate_ucast_entries(
448 plat->unicast_filter_entries);
449 plat->multicast_filter_bins = dwmac1000_validate_mcast_bins(
450 plat->multicast_filter_bins);
455 if (of_device_is_compatible(np, "snps,dwmac-4.00") ||
456 of_device_is_compatible(np, "snps,dwmac-4.10a")) {
460 plat->tso_en = of_property_read_bool(np, "snps,tso");
463 if (of_device_is_compatible(np, "snps,dwmac-3.610") ||
464 of_device_is_compatible(np, "snps,dwmac-3.710")) {
466 plat->bugged_jumbo = 1;
467 plat->force_sf_dma_mode = 1;
470 dma_cfg = devm_kzalloc(&pdev->dev, sizeof(*dma_cfg),
473 stmmac_remove_config_dt(pdev, plat);
474 return ERR_PTR(-ENOMEM);
476 plat->dma_cfg = dma_cfg;
478 of_property_read_u32(np, "snps,pbl", &dma_cfg->pbl);
480 dma_cfg->pbl = DEFAULT_DMA_PBL;
481 of_property_read_u32(np, "snps,txpbl", &dma_cfg->txpbl);
482 of_property_read_u32(np, "snps,rxpbl", &dma_cfg->rxpbl);
483 dma_cfg->pblx8 = !of_property_read_bool(np, "snps,no-pbl-x8");
485 dma_cfg->aal = of_property_read_bool(np, "snps,aal");
486 dma_cfg->fixed_burst = of_property_read_bool(np, "snps,fixed-burst");
487 dma_cfg->mixed_burst = of_property_read_bool(np, "snps,mixed-burst");
489 plat->force_thresh_dma_mode = of_property_read_bool(np, "snps,force_thresh_dma_mode");
490 if (plat->force_thresh_dma_mode) {
491 plat->force_sf_dma_mode = 0;
492 pr_warn("force_sf_dma_mode is ignored if force_thresh_dma_mode is set.");
495 of_property_read_u32(np, "snps,ps-speed", &plat->mac_port_sel_speed);
497 plat->axi = stmmac_axi_setup(pdev);
499 stmmac_mtl_setup(pdev, plat);
502 plat->stmmac_clk = devm_clk_get(&pdev->dev,
503 STMMAC_RESOURCE_NAME);
504 if (IS_ERR(plat->stmmac_clk)) {
505 dev_warn(&pdev->dev, "Cannot get CSR clock\n");
506 plat->stmmac_clk = NULL;
508 clk_prepare_enable(plat->stmmac_clk);
510 plat->pclk = devm_clk_get(&pdev->dev, "pclk");
511 if (IS_ERR(plat->pclk)) {
512 if (PTR_ERR(plat->pclk) == -EPROBE_DEFER)
517 clk_prepare_enable(plat->pclk);
519 /* Fall-back to main clock in case of no PTP ref is passed */
520 plat->clk_ptp_ref = devm_clk_get(&pdev->dev, "ptp_ref");
521 if (IS_ERR(plat->clk_ptp_ref)) {
522 plat->clk_ptp_rate = clk_get_rate(plat->stmmac_clk);
523 plat->clk_ptp_ref = NULL;
524 dev_warn(&pdev->dev, "PTP uses main clock\n");
526 plat->clk_ptp_rate = clk_get_rate(plat->clk_ptp_ref);
527 dev_dbg(&pdev->dev, "PTP rate %d\n", plat->clk_ptp_rate);
530 plat->stmmac_rst = devm_reset_control_get(&pdev->dev,
531 STMMAC_RESOURCE_NAME);
532 if (IS_ERR(plat->stmmac_rst)) {
533 if (PTR_ERR(plat->stmmac_rst) == -EPROBE_DEFER)
536 dev_info(&pdev->dev, "no reset control found\n");
537 plat->stmmac_rst = NULL;
543 clk_disable_unprepare(plat->pclk);
545 clk_disable_unprepare(plat->stmmac_clk);
547 return ERR_PTR(-EPROBE_DEFER);
551 * stmmac_remove_config_dt - undo the effects of stmmac_probe_config_dt()
552 * @pdev: platform_device structure
553 * @plat: driver data platform structure
555 * Release resources claimed by stmmac_probe_config_dt().
557 void stmmac_remove_config_dt(struct platform_device *pdev,
558 struct plat_stmmacenet_data *plat)
560 struct device_node *np = pdev->dev.of_node;
562 if (of_phy_is_fixed_link(np))
563 of_phy_deregister_fixed_link(np);
564 of_node_put(plat->phy_node);
565 of_node_put(plat->mdio_node);
568 struct plat_stmmacenet_data *
569 stmmac_probe_config_dt(struct platform_device *pdev, const char **mac)
571 return ERR_PTR(-EINVAL);
574 void stmmac_remove_config_dt(struct platform_device *pdev,
575 struct plat_stmmacenet_data *plat)
578 #endif /* CONFIG_OF */
579 EXPORT_SYMBOL_GPL(stmmac_probe_config_dt);
580 EXPORT_SYMBOL_GPL(stmmac_remove_config_dt);
582 int stmmac_get_platform_resources(struct platform_device *pdev,
583 struct stmmac_resources *stmmac_res)
585 struct resource *res;
587 memset(stmmac_res, 0, sizeof(*stmmac_res));
589 /* Get IRQ information early to have an ability to ask for deferred
590 * probe if needed before we went too far with resource allocation.
592 stmmac_res->irq = platform_get_irq_byname(pdev, "macirq");
593 if (stmmac_res->irq < 0) {
594 if (stmmac_res->irq != -EPROBE_DEFER) {
596 "MAC IRQ configuration information not found\n");
598 return stmmac_res->irq;
601 /* On some platforms e.g. SPEAr the wake up irq differs from the mac irq
602 * The external wake up irq can be passed through the platform code
603 * named as "eth_wake_irq"
605 * In case the wake up interrupt is not passed from the platform
606 * so the driver will continue to use the mac irq (ndev->irq)
608 stmmac_res->wol_irq = platform_get_irq_byname(pdev, "eth_wake_irq");
609 if (stmmac_res->wol_irq < 0) {
610 if (stmmac_res->wol_irq == -EPROBE_DEFER)
611 return -EPROBE_DEFER;
612 stmmac_res->wol_irq = stmmac_res->irq;
615 stmmac_res->lpi_irq = platform_get_irq_byname(pdev, "eth_lpi");
616 if (stmmac_res->lpi_irq == -EPROBE_DEFER)
617 return -EPROBE_DEFER;
619 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
620 stmmac_res->addr = devm_ioremap_resource(&pdev->dev, res);
622 return PTR_ERR_OR_ZERO(stmmac_res->addr);
624 EXPORT_SYMBOL_GPL(stmmac_get_platform_resources);
627 * stmmac_pltfr_remove
628 * @pdev: platform device pointer
629 * Description: this function calls the main to free the net resources
630 * and calls the platforms hook and release the resources (e.g. mem).
632 int stmmac_pltfr_remove(struct platform_device *pdev)
634 struct net_device *ndev = platform_get_drvdata(pdev);
635 struct stmmac_priv *priv = netdev_priv(ndev);
636 struct plat_stmmacenet_data *plat = priv->plat;
637 int ret = stmmac_dvr_remove(&pdev->dev);
640 plat->exit(pdev, plat->bsp_priv);
642 stmmac_remove_config_dt(pdev, plat);
646 EXPORT_SYMBOL_GPL(stmmac_pltfr_remove);
648 #ifdef CONFIG_PM_SLEEP
650 * stmmac_pltfr_suspend
651 * @dev: device pointer
652 * Description: this function is invoked when suspend the driver and it direcly
653 * call the main suspend function and then, if required, on some platform, it
654 * can call an exit helper.
656 static int stmmac_pltfr_suspend(struct device *dev)
659 struct net_device *ndev = dev_get_drvdata(dev);
660 struct stmmac_priv *priv = netdev_priv(ndev);
661 struct platform_device *pdev = to_platform_device(dev);
663 ret = stmmac_suspend(dev);
664 if (priv->plat->exit)
665 priv->plat->exit(pdev, priv->plat->bsp_priv);
671 * stmmac_pltfr_resume
672 * @dev: device pointer
673 * Description: this function is invoked when resume the driver before calling
674 * the main resume function, on some platforms, it can call own init helper
677 static int stmmac_pltfr_resume(struct device *dev)
679 struct net_device *ndev = dev_get_drvdata(dev);
680 struct stmmac_priv *priv = netdev_priv(ndev);
681 struct platform_device *pdev = to_platform_device(dev);
683 if (priv->plat->init)
684 priv->plat->init(pdev, priv->plat->bsp_priv);
686 return stmmac_resume(dev);
688 #endif /* CONFIG_PM_SLEEP */
690 SIMPLE_DEV_PM_OPS(stmmac_pltfr_pm_ops, stmmac_pltfr_suspend,
691 stmmac_pltfr_resume);
692 EXPORT_SYMBOL_GPL(stmmac_pltfr_pm_ops);
694 MODULE_DESCRIPTION("STMMAC 10/100/1000 Ethernet platform support");
695 MODULE_AUTHOR("Giuseppe Cavallaro <peppe.cavallaro@st.com>");
696 MODULE_LICENSE("GPL");