1 // SPDX-License-Identifier: GPL-2.0-only
2 /*******************************************************************************
3 This contains the functions to handle the platform driver.
5 Copyright (C) 2007-2011 STMicroelectronics Ltd
8 Author: Giuseppe Cavallaro <peppe.cavallaro@st.com>
9 *******************************************************************************/
11 #include <linux/platform_device.h>
12 #include <linux/pm_runtime.h>
13 #include <linux/module.h>
16 #include <linux/of_net.h>
17 #include <linux/of_device.h>
18 #include <linux/of_mdio.h>
21 #include "stmmac_platform.h"
26 * dwmac1000_validate_mcast_bins - validates the number of Multicast filter bins
27 * @dev: struct device of the platform device
28 * @mcast_bins: Multicast filtering bins
30 * this function validates the number of Multicast filtering bins specified
31 * by the configuration through the device tree. The Synopsys GMAC supports
32 * 64 bins, 128 bins, or 256 bins. "bins" refer to the division of CRC
33 * number space. 64 bins correspond to 6 bits of the CRC, 128 corresponds
34 * to 7 bits, and 256 refers to 8 bits of the CRC. Any other setting is
35 * invalid and will cause the filtering algorithm to use Multicast
38 static int dwmac1000_validate_mcast_bins(struct device *dev, int mcast_bins)
49 dev_info(dev, "Hash table entries set to unexpected value %d\n",
57 * dwmac1000_validate_ucast_entries - validate the Unicast address entries
58 * @dev: struct device of the platform device
59 * @ucast_entries: number of Unicast address entries
61 * This function validates the number of Unicast address entries supported
62 * by a particular Synopsys 10/100/1000 controller. The Synopsys controller
63 * supports 1..32, 64, or 128 Unicast filter entries for it's Unicast filter
64 * logic. This function validates a valid, supported configuration is
65 * selected, and defaults to 1 Unicast address if an unsupported
66 * configuration is selected.
68 static int dwmac1000_validate_ucast_entries(struct device *dev,
71 int x = ucast_entries;
80 dev_info(dev, "Unicast table entries set to unexpected value %d\n",
88 * stmmac_axi_setup - parse DT parameters for programming the AXI register
89 * @pdev: platform device
91 * if required, from device-tree the AXI internal register can be tuned
92 * by using platform parameters.
94 static struct stmmac_axi *stmmac_axi_setup(struct platform_device *pdev)
96 struct device_node *np;
97 struct stmmac_axi *axi;
99 np = of_parse_phandle(pdev->dev.of_node, "snps,axi-config", 0);
103 axi = devm_kzalloc(&pdev->dev, sizeof(*axi), GFP_KERNEL);
106 return ERR_PTR(-ENOMEM);
109 axi->axi_lpi_en = of_property_read_bool(np, "snps,lpi_en");
110 axi->axi_xit_frm = of_property_read_bool(np, "snps,xit_frm");
111 axi->axi_kbbe = of_property_read_bool(np, "snps,kbbe");
112 axi->axi_fb = of_property_read_bool(np, "snps,fb");
113 axi->axi_mb = of_property_read_bool(np, "snps,mb");
114 axi->axi_rb = of_property_read_bool(np, "snps,rb");
116 if (of_property_read_u32(np, "snps,wr_osr_lmt", &axi->axi_wr_osr_lmt))
117 axi->axi_wr_osr_lmt = 1;
118 if (of_property_read_u32(np, "snps,rd_osr_lmt", &axi->axi_rd_osr_lmt))
119 axi->axi_rd_osr_lmt = 1;
120 of_property_read_u32_array(np, "snps,blen", axi->axi_blen, AXI_BLEN);
127 * stmmac_mtl_setup - parse DT parameters for multiple queues configuration
128 * @pdev: platform device
131 static int stmmac_mtl_setup(struct platform_device *pdev,
132 struct plat_stmmacenet_data *plat)
134 struct device_node *q_node;
135 struct device_node *rx_node;
136 struct device_node *tx_node;
140 /* For backwards-compatibility with device trees that don't have any
141 * snps,mtl-rx-config or snps,mtl-tx-config properties, we fall back
142 * to one RX and TX queues each.
144 plat->rx_queues_to_use = 1;
145 plat->tx_queues_to_use = 1;
147 /* First Queue must always be in DCB mode. As MTL_QUEUE_DCB = 1 we need
148 * to always set this, otherwise Queue will be classified as AVB
149 * (because MTL_QUEUE_AVB = 0).
151 plat->rx_queues_cfg[0].mode_to_use = MTL_QUEUE_DCB;
152 plat->tx_queues_cfg[0].mode_to_use = MTL_QUEUE_DCB;
154 rx_node = of_parse_phandle(pdev->dev.of_node, "snps,mtl-rx-config", 0);
158 tx_node = of_parse_phandle(pdev->dev.of_node, "snps,mtl-tx-config", 0);
160 of_node_put(rx_node);
164 /* Processing RX queues common config */
165 if (of_property_read_u32(rx_node, "snps,rx-queues-to-use",
166 &plat->rx_queues_to_use))
167 plat->rx_queues_to_use = 1;
169 if (of_property_read_bool(rx_node, "snps,rx-sched-sp"))
170 plat->rx_sched_algorithm = MTL_RX_ALGORITHM_SP;
171 else if (of_property_read_bool(rx_node, "snps,rx-sched-wsp"))
172 plat->rx_sched_algorithm = MTL_RX_ALGORITHM_WSP;
174 plat->rx_sched_algorithm = MTL_RX_ALGORITHM_SP;
176 /* Processing individual RX queue config */
177 for_each_child_of_node(rx_node, q_node) {
178 if (queue >= plat->rx_queues_to_use)
181 if (of_property_read_bool(q_node, "snps,dcb-algorithm"))
182 plat->rx_queues_cfg[queue].mode_to_use = MTL_QUEUE_DCB;
183 else if (of_property_read_bool(q_node, "snps,avb-algorithm"))
184 plat->rx_queues_cfg[queue].mode_to_use = MTL_QUEUE_AVB;
186 plat->rx_queues_cfg[queue].mode_to_use = MTL_QUEUE_DCB;
188 if (of_property_read_u32(q_node, "snps,map-to-dma-channel",
189 &plat->rx_queues_cfg[queue].chan))
190 plat->rx_queues_cfg[queue].chan = queue;
191 /* TODO: Dynamic mapping to be included in the future */
193 if (of_property_read_u32(q_node, "snps,priority",
194 &plat->rx_queues_cfg[queue].prio)) {
195 plat->rx_queues_cfg[queue].prio = 0;
196 plat->rx_queues_cfg[queue].use_prio = false;
198 plat->rx_queues_cfg[queue].use_prio = true;
201 /* RX queue specific packet type routing */
202 if (of_property_read_bool(q_node, "snps,route-avcp"))
203 plat->rx_queues_cfg[queue].pkt_route = PACKET_AVCPQ;
204 else if (of_property_read_bool(q_node, "snps,route-ptp"))
205 plat->rx_queues_cfg[queue].pkt_route = PACKET_PTPQ;
206 else if (of_property_read_bool(q_node, "snps,route-dcbcp"))
207 plat->rx_queues_cfg[queue].pkt_route = PACKET_DCBCPQ;
208 else if (of_property_read_bool(q_node, "snps,route-up"))
209 plat->rx_queues_cfg[queue].pkt_route = PACKET_UPQ;
210 else if (of_property_read_bool(q_node, "snps,route-multi-broad"))
211 plat->rx_queues_cfg[queue].pkt_route = PACKET_MCBCQ;
213 plat->rx_queues_cfg[queue].pkt_route = 0x0;
217 if (queue != plat->rx_queues_to_use) {
219 dev_err(&pdev->dev, "Not all RX queues were configured\n");
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;
283 if (queue != plat->tx_queues_to_use) {
285 dev_err(&pdev->dev, "Not all TX queues were configured\n");
290 of_node_put(rx_node);
291 of_node_put(tx_node);
298 * stmmac_dt_phy - parse device-tree driver parameters to allocate PHY resources
299 * @plat: driver data platform structure
300 * @np: device tree node
301 * @dev: device pointer
303 * The mdio bus will be allocated in case of a phy transceiver is on board;
304 * it will be NULL if the fixed-link is configured.
305 * If there is the "snps,dwmac-mdio" sub-node the mdio will be allocated
306 * in any case (for DSA, mdio must be registered even if fixed-link).
307 * The table below sums the supported configurations:
308 * -------------------------------
310 * -------------------------------
312 * -------------------------------
314 * -------------------------------
318 * -------------------------------
320 * It returns 0 in case of success otherwise -ENODEV.
322 static int stmmac_dt_phy(struct plat_stmmacenet_data *plat,
323 struct device_node *np, struct device *dev)
325 bool mdio = !of_phy_is_fixed_link(np);
326 static const struct of_device_id need_mdio_ids[] = {
327 { .compatible = "snps,dwc-qos-ethernet-4.10" },
331 if (of_match_node(need_mdio_ids, np)) {
332 plat->mdio_node = of_get_child_by_name(np, "mdio");
335 * If snps,dwmac-mdio is passed from DT, always register
338 for_each_child_of_node(np, plat->mdio_node) {
339 if (of_device_is_compatible(plat->mdio_node,
345 if (plat->mdio_node) {
346 dev_dbg(dev, "Found MDIO subnode\n");
351 plat->mdio_bus_data =
352 devm_kzalloc(dev, sizeof(struct stmmac_mdio_bus_data),
354 if (!plat->mdio_bus_data)
357 plat->mdio_bus_data->needs_reset = true;
364 * stmmac_of_get_mac_mode - retrieves the interface of the MAC
365 * @np: - device-tree node
367 * Similar to `of_get_phy_mode()`, this function will retrieve (from
368 * the device-tree) the interface mode on the MAC side. This assumes
369 * that there is mode converter in-between the MAC & PHY
370 * (e.g. GMII-to-RGMII).
372 static int stmmac_of_get_mac_mode(struct device_node *np)
377 err = of_property_read_string(np, "mac-mode", &pm);
381 for (i = 0; i < PHY_INTERFACE_MODE_MAX; i++) {
382 if (!strcasecmp(pm, phy_modes(i)))
390 * stmmac_probe_config_dt - parse device-tree driver parameters
391 * @pdev: platform_device structure
392 * @mac: MAC address to use
394 * this function is to read the driver parameters from device-tree and
395 * set some private fields that will be used by the main at runtime.
397 struct plat_stmmacenet_data *
398 stmmac_probe_config_dt(struct platform_device *pdev, const char **mac)
400 struct device_node *np = pdev->dev.of_node;
401 struct plat_stmmacenet_data *plat;
402 struct stmmac_dma_cfg *dma_cfg;
406 plat = devm_kzalloc(&pdev->dev, sizeof(*plat), GFP_KERNEL);
408 return ERR_PTR(-ENOMEM);
410 *mac = of_get_mac_address(np);
412 if (PTR_ERR(*mac) == -EPROBE_DEFER)
413 return ERR_CAST(*mac);
418 phy_mode = device_get_phy_mode(&pdev->dev);
420 return ERR_PTR(phy_mode);
422 plat->phy_interface = phy_mode;
423 plat->interface = stmmac_of_get_mac_mode(np);
424 if (plat->interface < 0)
425 plat->interface = plat->phy_interface;
427 /* Some wrapper drivers still rely on phy_node. Let's save it while
428 * they are not converted to phylink. */
429 plat->phy_node = of_parse_phandle(np, "phy-handle", 0);
431 /* PHYLINK automatically parses the phy-handle property */
432 plat->phylink_node = np;
434 /* Get max speed of operation from device tree */
435 of_property_read_u32(np, "max-speed", &plat->max_speed);
437 plat->bus_id = of_alias_get_id(np, "ethernet");
438 if (plat->bus_id < 0)
441 /* Default to phy auto-detection */
444 /* Default to get clk_csr from stmmac_clk_crs_set(),
445 * or get clk_csr from device tree.
448 of_property_read_u32(np, "clk_csr", &plat->clk_csr);
450 /* "snps,phy-addr" is not a standard property. Mark it as deprecated
451 * and warn of its use. Remove this when phy node support is added.
453 if (of_property_read_u32(np, "snps,phy-addr", &plat->phy_addr) == 0)
454 dev_warn(&pdev->dev, "snps,phy-addr property is deprecated\n");
456 /* To Configure PHY by using all device-tree supported properties */
457 rc = stmmac_dt_phy(plat, np, &pdev->dev);
461 of_property_read_u32(np, "tx-fifo-depth", &plat->tx_fifo_size);
463 of_property_read_u32(np, "rx-fifo-depth", &plat->rx_fifo_size);
465 plat->force_sf_dma_mode =
466 of_property_read_bool(np, "snps,force_sf_dma_mode");
468 plat->en_tx_lpi_clockgating =
469 of_property_read_bool(np, "snps,en-tx-lpi-clockgating");
471 /* Set the maxmtu to a default of JUMBO_LEN in case the
472 * parameter is not present in the device tree.
474 plat->maxmtu = JUMBO_LEN;
476 /* Set default value for multicast hash bins */
477 plat->multicast_filter_bins = HASH_TABLE_SIZE;
479 /* Set default value for unicast filter entries */
480 plat->unicast_filter_entries = 1;
483 * Currently only the properties needed on SPEAr600
484 * are provided. All other properties should be added
485 * once needed on other platforms.
487 if (of_device_is_compatible(np, "st,spear600-gmac") ||
488 of_device_is_compatible(np, "snps,dwmac-3.50a") ||
489 of_device_is_compatible(np, "snps,dwmac-3.70a") ||
490 of_device_is_compatible(np, "snps,dwmac")) {
491 /* Note that the max-frame-size parameter as defined in the
492 * ePAPR v1.1 spec is defined as max-frame-size, it's
493 * actually used as the IEEE definition of MAC Client
494 * data, or MTU. The ePAPR specification is confusing as
495 * the definition is max-frame-size, but usage examples
498 of_property_read_u32(np, "max-frame-size", &plat->maxmtu);
499 of_property_read_u32(np, "snps,multicast-filter-bins",
500 &plat->multicast_filter_bins);
501 of_property_read_u32(np, "snps,perfect-filter-entries",
502 &plat->unicast_filter_entries);
503 plat->unicast_filter_entries = dwmac1000_validate_ucast_entries(
504 &pdev->dev, plat->unicast_filter_entries);
505 plat->multicast_filter_bins = dwmac1000_validate_mcast_bins(
506 &pdev->dev, plat->multicast_filter_bins);
511 if (of_device_is_compatible(np, "snps,dwmac-3.40a")) {
515 plat->bugged_jumbo = 1;
519 if (of_device_is_compatible(np, "snps,dwmac-4.00") ||
520 of_device_is_compatible(np, "snps,dwmac-4.10a") ||
521 of_device_is_compatible(np, "snps,dwmac-4.20a") ||
522 of_device_is_compatible(np, "snps,dwmac-5.10a")) {
526 plat->tso_en = of_property_read_bool(np, "snps,tso");
529 if (of_device_is_compatible(np, "snps,dwmac-3.610") ||
530 of_device_is_compatible(np, "snps,dwmac-3.710")) {
532 plat->bugged_jumbo = 1;
533 plat->force_sf_dma_mode = 1;
536 if (of_device_is_compatible(np, "snps,dwxgmac")) {
539 plat->tso_en = of_property_read_bool(np, "snps,tso");
542 dma_cfg = devm_kzalloc(&pdev->dev, sizeof(*dma_cfg),
545 stmmac_remove_config_dt(pdev, plat);
546 return ERR_PTR(-ENOMEM);
548 plat->dma_cfg = dma_cfg;
550 of_property_read_u32(np, "snps,pbl", &dma_cfg->pbl);
552 dma_cfg->pbl = DEFAULT_DMA_PBL;
553 of_property_read_u32(np, "snps,txpbl", &dma_cfg->txpbl);
554 of_property_read_u32(np, "snps,rxpbl", &dma_cfg->rxpbl);
555 dma_cfg->pblx8 = !of_property_read_bool(np, "snps,no-pbl-x8");
557 dma_cfg->aal = of_property_read_bool(np, "snps,aal");
558 dma_cfg->fixed_burst = of_property_read_bool(np, "snps,fixed-burst");
559 dma_cfg->mixed_burst = of_property_read_bool(np, "snps,mixed-burst");
561 plat->force_thresh_dma_mode = of_property_read_bool(np, "snps,force_thresh_dma_mode");
562 if (plat->force_thresh_dma_mode && plat->force_sf_dma_mode) {
563 plat->force_sf_dma_mode = 0;
565 "force_sf_dma_mode is ignored if force_thresh_dma_mode is set.\n");
568 of_property_read_u32(np, "snps,ps-speed", &plat->mac_port_sel_speed);
570 plat->axi = stmmac_axi_setup(pdev);
572 rc = stmmac_mtl_setup(pdev, plat);
574 stmmac_remove_config_dt(pdev, plat);
579 if (!of_device_is_compatible(np, "snps,dwc-qos-ethernet-4.10")) {
580 plat->stmmac_clk = devm_clk_get(&pdev->dev,
581 STMMAC_RESOURCE_NAME);
582 if (IS_ERR(plat->stmmac_clk)) {
583 dev_warn(&pdev->dev, "Cannot get CSR clock\n");
584 plat->stmmac_clk = NULL;
586 clk_prepare_enable(plat->stmmac_clk);
589 plat->pclk = devm_clk_get(&pdev->dev, "pclk");
590 if (IS_ERR(plat->pclk)) {
591 if (PTR_ERR(plat->pclk) == -EPROBE_DEFER)
596 clk_prepare_enable(plat->pclk);
598 /* Fall-back to main clock in case of no PTP ref is passed */
599 plat->clk_ptp_ref = devm_clk_get(&pdev->dev, "ptp_ref");
600 if (IS_ERR(plat->clk_ptp_ref)) {
601 plat->clk_ptp_rate = clk_get_rate(plat->stmmac_clk);
602 plat->clk_ptp_ref = NULL;
603 dev_info(&pdev->dev, "PTP uses main clock\n");
605 plat->clk_ptp_rate = clk_get_rate(plat->clk_ptp_ref);
606 dev_dbg(&pdev->dev, "PTP rate %d\n", plat->clk_ptp_rate);
609 plat->stmmac_rst = devm_reset_control_get(&pdev->dev,
610 STMMAC_RESOURCE_NAME);
611 if (IS_ERR(plat->stmmac_rst)) {
612 if (PTR_ERR(plat->stmmac_rst) == -EPROBE_DEFER)
615 dev_info(&pdev->dev, "no reset control found\n");
616 plat->stmmac_rst = NULL;
622 clk_disable_unprepare(plat->pclk);
624 clk_disable_unprepare(plat->stmmac_clk);
626 return ERR_PTR(-EPROBE_DEFER);
630 * stmmac_remove_config_dt - undo the effects of stmmac_probe_config_dt()
631 * @pdev: platform_device structure
632 * @plat: driver data platform structure
634 * Release resources claimed by stmmac_probe_config_dt().
636 void stmmac_remove_config_dt(struct platform_device *pdev,
637 struct plat_stmmacenet_data *plat)
639 clk_disable_unprepare(plat->stmmac_clk);
640 clk_disable_unprepare(plat->pclk);
641 of_node_put(plat->phy_node);
642 of_node_put(plat->mdio_node);
645 struct plat_stmmacenet_data *
646 stmmac_probe_config_dt(struct platform_device *pdev, const char **mac)
648 return ERR_PTR(-EINVAL);
651 void stmmac_remove_config_dt(struct platform_device *pdev,
652 struct plat_stmmacenet_data *plat)
655 #endif /* CONFIG_OF */
656 EXPORT_SYMBOL_GPL(stmmac_probe_config_dt);
657 EXPORT_SYMBOL_GPL(stmmac_remove_config_dt);
659 int stmmac_get_platform_resources(struct platform_device *pdev,
660 struct stmmac_resources *stmmac_res)
662 memset(stmmac_res, 0, sizeof(*stmmac_res));
664 /* Get IRQ information early to have an ability to ask for deferred
665 * probe if needed before we went too far with resource allocation.
667 stmmac_res->irq = platform_get_irq_byname(pdev, "macirq");
668 if (stmmac_res->irq < 0)
669 return stmmac_res->irq;
671 /* On some platforms e.g. SPEAr the wake up irq differs from the mac irq
672 * The external wake up irq can be passed through the platform code
673 * named as "eth_wake_irq"
675 * In case the wake up interrupt is not passed from the platform
676 * so the driver will continue to use the mac irq (ndev->irq)
678 stmmac_res->wol_irq =
679 platform_get_irq_byname_optional(pdev, "eth_wake_irq");
680 if (stmmac_res->wol_irq < 0) {
681 if (stmmac_res->wol_irq == -EPROBE_DEFER)
682 return -EPROBE_DEFER;
683 dev_info(&pdev->dev, "IRQ eth_wake_irq not found\n");
684 stmmac_res->wol_irq = stmmac_res->irq;
687 stmmac_res->lpi_irq =
688 platform_get_irq_byname_optional(pdev, "eth_lpi");
689 if (stmmac_res->lpi_irq < 0) {
690 if (stmmac_res->lpi_irq == -EPROBE_DEFER)
691 return -EPROBE_DEFER;
692 dev_info(&pdev->dev, "IRQ eth_lpi not found\n");
695 stmmac_res->addr = devm_platform_ioremap_resource(pdev, 0);
697 return PTR_ERR_OR_ZERO(stmmac_res->addr);
699 EXPORT_SYMBOL_GPL(stmmac_get_platform_resources);
702 * stmmac_pltfr_remove
703 * @pdev: platform device pointer
704 * Description: this function calls the main to free the net resources
705 * and calls the platforms hook and release the resources (e.g. mem).
707 int stmmac_pltfr_remove(struct platform_device *pdev)
709 struct net_device *ndev = platform_get_drvdata(pdev);
710 struct stmmac_priv *priv = netdev_priv(ndev);
711 struct plat_stmmacenet_data *plat = priv->plat;
712 int ret = stmmac_dvr_remove(&pdev->dev);
715 plat->exit(pdev, plat->bsp_priv);
717 stmmac_remove_config_dt(pdev, plat);
721 EXPORT_SYMBOL_GPL(stmmac_pltfr_remove);
724 * stmmac_pltfr_suspend
725 * @dev: device pointer
726 * Description: this function is invoked when suspend the driver and it direcly
727 * call the main suspend function and then, if required, on some platform, it
728 * can call an exit helper.
730 static int __maybe_unused stmmac_pltfr_suspend(struct device *dev)
733 struct net_device *ndev = dev_get_drvdata(dev);
734 struct stmmac_priv *priv = netdev_priv(ndev);
735 struct platform_device *pdev = to_platform_device(dev);
737 ret = stmmac_suspend(dev);
738 if (priv->plat->exit)
739 priv->plat->exit(pdev, priv->plat->bsp_priv);
745 * stmmac_pltfr_resume
746 * @dev: device pointer
747 * Description: this function is invoked when resume the driver before calling
748 * the main resume function, on some platforms, it can call own init helper
751 static int __maybe_unused stmmac_pltfr_resume(struct device *dev)
753 struct net_device *ndev = dev_get_drvdata(dev);
754 struct stmmac_priv *priv = netdev_priv(ndev);
755 struct platform_device *pdev = to_platform_device(dev);
757 if (priv->plat->init)
758 priv->plat->init(pdev, priv->plat->bsp_priv);
760 return stmmac_resume(dev);
763 static int __maybe_unused stmmac_runtime_suspend(struct device *dev)
765 struct net_device *ndev = dev_get_drvdata(dev);
766 struct stmmac_priv *priv = netdev_priv(ndev);
768 stmmac_bus_clks_config(priv, false);
773 static int __maybe_unused stmmac_runtime_resume(struct device *dev)
775 struct net_device *ndev = dev_get_drvdata(dev);
776 struct stmmac_priv *priv = netdev_priv(ndev);
778 return stmmac_bus_clks_config(priv, true);
781 static int __maybe_unused stmmac_pltfr_noirq_suspend(struct device *dev)
783 struct net_device *ndev = dev_get_drvdata(dev);
784 struct stmmac_priv *priv = netdev_priv(ndev);
787 if (!netif_running(ndev))
790 if (!device_may_wakeup(priv->device) || !priv->plat->pmt) {
791 /* Disable clock in case of PWM is off */
792 clk_disable_unprepare(priv->plat->clk_ptp_ref);
794 ret = pm_runtime_force_suspend(dev);
802 static int __maybe_unused stmmac_pltfr_noirq_resume(struct device *dev)
804 struct net_device *ndev = dev_get_drvdata(dev);
805 struct stmmac_priv *priv = netdev_priv(ndev);
808 if (!netif_running(ndev))
811 if (!device_may_wakeup(priv->device) || !priv->plat->pmt) {
812 /* enable the clk previously disabled */
813 ret = pm_runtime_force_resume(dev);
817 ret = clk_prepare_enable(priv->plat->clk_ptp_ref);
819 netdev_warn(priv->dev,
820 "failed to enable PTP reference clock: %pe\n",
829 const struct dev_pm_ops stmmac_pltfr_pm_ops = {
830 SET_SYSTEM_SLEEP_PM_OPS(stmmac_pltfr_suspend, stmmac_pltfr_resume)
831 SET_RUNTIME_PM_OPS(stmmac_runtime_suspend, stmmac_runtime_resume, NULL)
832 SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(stmmac_pltfr_noirq_suspend, stmmac_pltfr_noirq_resume)
834 EXPORT_SYMBOL_GPL(stmmac_pltfr_pm_ops);
836 MODULE_DESCRIPTION("STMMAC 10/100/1000 Ethernet platform support");
837 MODULE_AUTHOR("Giuseppe Cavallaro <peppe.cavallaro@st.com>");
838 MODULE_LICENSE("GPL");