1 // SPDX-License-Identifier: GPL-2.0
3  * cdns3-imx.c - NXP i.MX specific Glue layer for Cadence USB Controller
14 #include <linux/dma-mapping.h>
99 	return readl(data->noncore + offset);  in cdns_imx_readl()
104 	writel(value, data->noncore + offset);  in cdns_imx_writel()
119 	struct device *dev = data->dev;  in cdns_imx_noncore_init()
123 	ret = readl_poll_timeout(data->noncore + USB3_SSPHY_STATUS, value,  in cdns_imx_noncore_init()
151 	bool suspend, bool wakeup);
167 	struct device *dev = &pdev->dev;  in cdns_imx_probe()
168 	struct device_node *node = dev->of_node;  in cdns_imx_probe()
173 		return -ENODEV;  in cdns_imx_probe()
177 		return -ENOMEM;  in cdns_imx_probe()
180 	data->dev = dev;  in cdns_imx_probe()
181 	data->noncore = devm_platform_ioremap_resource(pdev, 0);  in cdns_imx_probe()
182 	if (IS_ERR(data->noncore)) {  in cdns_imx_probe()
184 		return PTR_ERR(data->noncore);  in cdns_imx_probe()
187 	data->num_clks = ARRAY_SIZE(imx_cdns3_core_clks);  in cdns_imx_probe()
188 	data->clks = devm_kmemdup(dev, imx_cdns3_core_clks,  in cdns_imx_probe()
190 	if (!data->clks)  in cdns_imx_probe()
191 		return -ENOMEM;  in cdns_imx_probe()
193 	ret = devm_clk_bulk_get(dev, data->num_clks, data->clks);  in cdns_imx_probe()
197 	ret = clk_bulk_prepare_enable(data->num_clks, data->clks);  in cdns_imx_probe()
217 	clk_bulk_disable_unprepare(data->num_clks, data->clks);  in cdns_imx_probe()
223 	struct device *dev = &pdev->dev;  in cdns_imx_remove()
228 	clk_bulk_disable_unprepare(data->num_clks, data->clks);  in cdns_imx_remove()
249 		bool suspend, bool wakeup)  in cdns_imx_platform_suspend()  argument
252 	struct device *parent = dev->parent;  in cdns_imx_platform_suspend()  local
253 	struct cdns_imx *data = dev_get_drvdata(parent);  in cdns_imx_platform_suspend()
254 	void __iomem *otg_regs = (void __iomem *)(cdns->otg_regs);  in cdns_imx_platform_suspend()
255 	void __iomem *xhci_regs = cdns->xhci_regs;  in cdns_imx_platform_suspend()
259 	if (cdns->role != USB_ROLE_HOST)  in cdns_imx_platform_suspend()
276 		ret = readl_poll_timeout(data->noncore + USB3_CORE_STATUS, value,  in cdns_imx_platform_suspend()
280 			dev_warn(parent, "wait mdctrl_clk_status timeout\n");  in cdns_imx_platform_suspend()
284 		ret = readl_poll_timeout(data->noncore + USB3_INT_REG, value,  in cdns_imx_platform_suspend()
288 			dev_warn(parent, "wait lpm_clk_req timeout\n");  in cdns_imx_platform_suspend()
292 		ret = readl_poll_timeout(data->noncore + USB3_SSPHY_STATUS, value,  in cdns_imx_platform_suspend()
296 			dev_warn(parent, "wait phy_refclk_req timeout\n");  in cdns_imx_platform_suspend()
298 		cdns3_set_wakeup(data, wakeup);  in cdns_imx_platform_suspend()
320 		ret = readl_poll_timeout(data->noncore + USB3_INT_REG, value,  in cdns_imx_platform_suspend()
324 			dev_warn(parent, "wait CLK_125_REQ timeout\n");  in cdns_imx_platform_suspend()
328 		ret = readl_poll_timeout(data->noncore + USB3_CORE_STATUS, value,  in cdns_imx_platform_suspend()
332 			dev_warn(parent, "wait mdctrl_clk_status cleared timeout\n");  in cdns_imx_platform_suspend()
340 			dev_warn(parent, "wait OTG ready timeout\n");  in cdns_imx_platform_suspend()
351 	return clk_bulk_prepare_enable(data->num_clks, data->clks);  in cdns_imx_resume()
358 	clk_bulk_disable_unprepare(data->num_clks, data->clks);  in cdns_imx_suspend()
405 	bool suspend, bool wakeup)  in cdns_imx_platform_suspend()  argument
418 	{ .compatible = "fsl,imx8qm-usb3", },
427 		.name	= "cdns3-imx",
434 MODULE_ALIAS("platform:cdns3-imx");