1 // SPDX-License-Identifier: GPL-2.0+
3  * Setup platform devices needed by the Freescale multi-port host
4  * and/or dual-role USB controller modules based on the description
5  * in flat device tree.
16 #include <linux/dma-mapping.h>
27 		.drivers = { "fsl-ehci", NULL, NULL, },
32 		.drivers = { "fsl-usb2-otg", "fsl-ehci", "fsl-usb2-udc", },
37 		.drivers = { "fsl-usb2-udc", NULL, NULL, },
83 	const struct resource *res = ofdev->resource;  in fsl_usb2_device_register()
84 	unsigned int num = ofdev->num_resources;  in fsl_usb2_device_register()
89 		retval = -ENOMEM;  in fsl_usb2_device_register()
93 	pdev->dev.parent = &ofdev->dev;  in fsl_usb2_device_register()
95 	pdev->dev.coherent_dma_mask = ofdev->dev.coherent_dma_mask;  in fsl_usb2_device_register()
97 	if (!pdev->dev.dma_mask) {  in fsl_usb2_device_register()
98 		pdev->dev.dma_mask = &ofdev->dev.coherent_dma_mask;  in fsl_usb2_device_register()
100 		retval = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));  in fsl_usb2_device_register()
115 	pdev->dev.of_node = ofdev->dev.of_node;  in fsl_usb2_device_register()
116 	pdev->dev.of_node_reused = true;  in fsl_usb2_device_register()
139 	 * returns 4 for usb controller version 2.5  in usb_get_ver_info()
142 	if (of_device_is_compatible(np, "fsl-usb2-dr")) {  in usb_get_ver_info()
143 		if (of_device_is_compatible(np, "fsl-usb2-dr-v1.6"))  in usb_get_ver_info()
145 		else if (of_device_is_compatible(np, "fsl-usb2-dr-v2.2"))  in usb_get_ver_info()
147 		else if (of_device_is_compatible(np, "fsl-usb2-dr-v2.4"))  in usb_get_ver_info()
149 		else if (of_device_is_compatible(np, "fsl-usb2-dr-v2.5"))  in usb_get_ver_info()
158 	if (of_device_is_compatible(np, "fsl,mpc5121-usb2-dr"))  in usb_get_ver_info()
161 	if (of_device_is_compatible(np, "fsl-usb2-mph")) {  in usb_get_ver_info()
162 		if (of_device_is_compatible(np, "fsl-usb2-mph-v1.6"))  in usb_get_ver_info()
164 		else if (of_device_is_compatible(np, "fsl-usb2-mph-v2.2"))  in usb_get_ver_info()
166 		else if (of_device_is_compatible(np, "fsl-usb2-mph-v2.4"))  in usb_get_ver_info()
168 		else if (of_device_is_compatible(np, "fsl-usb2-mph-v2.5"))  in usb_get_ver_info()
179 	struct device_node *np = ofdev->dev.of_node;  in fsl_usb2_mph_dr_of_probe()
189 		return -ENODEV;  in fsl_usb2_mph_dr_of_probe()
191 	match = of_match_device(fsl_usb2_mph_dr_of_match, &ofdev->dev);  in fsl_usb2_mph_dr_of_probe()
193 		return -ENODEV;  in fsl_usb2_mph_dr_of_probe()
196 	if (match->data)  in fsl_usb2_mph_dr_of_probe()
197 		memcpy(pdata, match->data, sizeof(data));  in fsl_usb2_mph_dr_of_probe()
203 	if (of_device_is_compatible(np, "fsl-usb2-mph")) {  in fsl_usb2_mph_dr_of_probe()
205 			pdata->port_enables |= FSL_USB2_PORT0_ENABLED;  in fsl_usb2_mph_dr_of_probe()
208 			pdata->port_enables |= FSL_USB2_PORT1_ENABLED;  in fsl_usb2_mph_dr_of_probe()
210 		pdata->operating_mode = FSL_USB2_MPH_HOST;  in fsl_usb2_mph_dr_of_probe()
212 		if (of_get_property(np, "fsl,invert-drvvbus", NULL))  in fsl_usb2_mph_dr_of_probe()
213 			pdata->invert_drvvbus = 1;  in fsl_usb2_mph_dr_of_probe()
215 		if (of_get_property(np, "fsl,invert-pwr-fault", NULL))  in fsl_usb2_mph_dr_of_probe()
216 			pdata->invert_pwr_fault = 1;  in fsl_usb2_mph_dr_of_probe()
218 		/* setup mode selected in the device tree */  in fsl_usb2_mph_dr_of_probe()
219 		pdata->operating_mode = dev_data->op_mode;  in fsl_usb2_mph_dr_of_probe()
223 	pdata->phy_mode = determine_usb_phy(prop);  in fsl_usb2_mph_dr_of_probe()
224 	pdata->controller_ver = usb_get_ver_info(np);  in fsl_usb2_mph_dr_of_probe()
226 	/* Activate Erratum by reading property in device tree */  in fsl_usb2_mph_dr_of_probe()
227 	pdata->has_fsl_erratum_a007792 =  in fsl_usb2_mph_dr_of_probe()
228 		of_property_read_bool(np, "fsl,usb-erratum-a007792");  in fsl_usb2_mph_dr_of_probe()
229 	pdata->has_fsl_erratum_a005275 =  in fsl_usb2_mph_dr_of_probe()
230 		of_property_read_bool(np, "fsl,usb-erratum-a005275");  in fsl_usb2_mph_dr_of_probe()
231 	pdata->has_fsl_erratum_a005697 =  in fsl_usb2_mph_dr_of_probe()
232 		of_property_read_bool(np, "fsl,usb_erratum-a005697");  in fsl_usb2_mph_dr_of_probe()
233 	pdata->has_fsl_erratum_a006918 =  in fsl_usb2_mph_dr_of_probe()
234 		of_property_read_bool(np, "fsl,usb_erratum-a006918");  in fsl_usb2_mph_dr_of_probe()
235 	pdata->has_fsl_erratum_14 =  in fsl_usb2_mph_dr_of_probe()
236 		of_property_read_bool(np, "fsl,usb_erratum-14");  in fsl_usb2_mph_dr_of_probe()
240 	 * by reading property in device tree  in fsl_usb2_mph_dr_of_probe()
242 	pdata->check_phy_clk_valid =  in fsl_usb2_mph_dr_of_probe()
243 		of_property_read_bool(np, "phy-clk-valid");  in fsl_usb2_mph_dr_of_probe()
245 	if (pdata->have_sysif_regs) {  in fsl_usb2_mph_dr_of_probe()
246 		if (pdata->controller_ver == FSL_USB_VER_NONE) {  in fsl_usb2_mph_dr_of_probe()
247 			dev_warn(&ofdev->dev, "Could not get controller version\n");  in fsl_usb2_mph_dr_of_probe()
248 			return -ENODEV;  in fsl_usb2_mph_dr_of_probe()
252 	for (i = 0; i < ARRAY_SIZE(dev_data->drivers); i++) {  in fsl_usb2_mph_dr_of_probe()
253 		if (!dev_data->drivers[i])  in fsl_usb2_mph_dr_of_probe()
256 					dev_data->drivers[i], idx);  in fsl_usb2_mph_dr_of_probe()
258 			dev_err(&ofdev->dev, "Can't register usb device\n");  in fsl_usb2_mph_dr_of_probe()
266 static int __unregister_subdev(struct device *dev, void *d)  in __unregister_subdev()
274 	device_for_each_child(&ofdev->dev, NULL, __unregister_subdev);  in fsl_usb2_mph_dr_of_remove()
282 #define GC_ULPI_SEL		(1 << 4)	/* ULPI i/f select (usb0 only)*/
289 #define PHYCTRL_PHYE		(1 << 4)	/* On-chip UTMI PHY enable */
297 	struct fsl_usb2_platform_data *pdata = dev_get_platdata(&pdev->dev);  in fsl_usb2_mpc5121_init()
301 	clk = devm_clk_get(pdev->dev.parent, "ipg");  in fsl_usb2_mpc5121_init()
303 		dev_err(&pdev->dev, "failed to get clk\n");  in fsl_usb2_mpc5121_init()
308 		dev_err(&pdev->dev, "failed to enable clk\n");  in fsl_usb2_mpc5121_init()
311 	pdata->clk = clk;  in fsl_usb2_mpc5121_init()
313 	if (pdata->phy_mode == FSL_USB2_PHY_UTMI_WIDE) {  in fsl_usb2_mpc5121_init()
316 		if (pdata->invert_drvvbus)  in fsl_usb2_mpc5121_init()
319 		if (pdata->invert_pwr_fault)  in fsl_usb2_mpc5121_init()
322 		out_be32(pdata->regs + ISIPHYCTRL, PHYCTRL_PHYE | PHYCTRL_PXE);  in fsl_usb2_mpc5121_init()
323 		out_be32(pdata->regs + USBGENCTRL, reg);  in fsl_usb2_mpc5121_init()
330 	struct fsl_usb2_platform_data *pdata = dev_get_platdata(&pdev->dev);  in fsl_usb2_mpc5121_exit()
332 	pdata->regs = NULL;  in fsl_usb2_mpc5121_exit()
334 	if (pdata->clk)  in fsl_usb2_mpc5121_exit()
335 		clk_disable_unprepare(pdata->clk);  in fsl_usb2_mpc5121_exit()
354 	{ .compatible = "fsl-usb2-mph", .data = &fsl_usb2_mpc8xxx_pd, },
355 	{ .compatible = "fsl-usb2-dr", .data = &fsl_usb2_mpc8xxx_pd, },
357 	{ .compatible = "fsl,mpc5121-usb2-dr", .data = &fsl_usb2_mpc5121_pd, },
365 		.name = "fsl-usb2-mph-dr",