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
17 #include <linux/dma-mapping.h>
21 	char *drivers[3];	/* drivers to instantiate for this mode */
28 		.drivers = { "fsl-ehci", NULL, NULL, },
33 		.drivers = { "fsl-usb2-otg", "fsl-ehci", "fsl-usb2-udc", },
38 		.drivers = { "fsl-usb2-udc", NULL, NULL, },
84 	const struct resource *res = ofdev->resource;  in fsl_usb2_device_register()
85 	unsigned int num = ofdev->num_resources;  in fsl_usb2_device_register()
90 		retval = -ENOMEM;  in fsl_usb2_device_register()
94 	pdev->dev.parent = &ofdev->dev;  in fsl_usb2_device_register()
96 	pdev->dev.coherent_dma_mask = ofdev->dev.coherent_dma_mask;  in fsl_usb2_device_register()
98 	if (!pdev->dev.dma_mask) {  in fsl_usb2_device_register()
99 		pdev->dev.dma_mask = &ofdev->dev.coherent_dma_mask;  in fsl_usb2_device_register()
101 		retval = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));  in fsl_usb2_device_register()
116 	device_set_of_node_from_dev(&pdev->dev, &ofdev->dev);  in fsl_usb2_device_register()
138 	 * returns 3 for usb controller version 2.4  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 		pdata->invert_drvvbus = of_property_read_bool(np, "fsl,invert-drvvbus");  in fsl_usb2_mph_dr_of_probe()
213 		pdata->invert_pwr_fault = of_property_read_bool(np, "fsl,invert-pwr-fault");  in fsl_usb2_mph_dr_of_probe()
216 		pdata->operating_mode = dev_data->op_mode;  in fsl_usb2_mph_dr_of_probe()
220 	pdata->phy_mode = determine_usb_phy(prop);  in fsl_usb2_mph_dr_of_probe()
221 	pdata->controller_ver = usb_get_ver_info(np);  in fsl_usb2_mph_dr_of_probe()
224 	pdata->has_fsl_erratum_a007792 =  in fsl_usb2_mph_dr_of_probe()
225 		of_property_read_bool(np, "fsl,usb-erratum-a007792");  in fsl_usb2_mph_dr_of_probe()
226 	pdata->has_fsl_erratum_a005275 =  in fsl_usb2_mph_dr_of_probe()
227 		of_property_read_bool(np, "fsl,usb-erratum-a005275");  in fsl_usb2_mph_dr_of_probe()
228 	pdata->has_fsl_erratum_a005697 =  in fsl_usb2_mph_dr_of_probe()
229 		of_property_read_bool(np, "fsl,usb_erratum-a005697");  in fsl_usb2_mph_dr_of_probe()
230 	pdata->has_fsl_erratum_a006918 =  in fsl_usb2_mph_dr_of_probe()
231 		of_property_read_bool(np, "fsl,usb_erratum-a006918");  in fsl_usb2_mph_dr_of_probe()
232 	pdata->has_fsl_erratum_14 =  in fsl_usb2_mph_dr_of_probe()
233 		of_property_read_bool(np, "fsl,usb_erratum-14");  in fsl_usb2_mph_dr_of_probe()
239 	pdata->check_phy_clk_valid =  in fsl_usb2_mph_dr_of_probe()
240 		of_property_read_bool(np, "phy-clk-valid");  in fsl_usb2_mph_dr_of_probe()
242 	if (pdata->have_sysif_regs) {  in fsl_usb2_mph_dr_of_probe()
243 		if (pdata->controller_ver == FSL_USB_VER_NONE) {  in fsl_usb2_mph_dr_of_probe()
244 			dev_warn(&ofdev->dev, "Could not get controller version\n");  in fsl_usb2_mph_dr_of_probe()
245 			return -ENODEV;  in fsl_usb2_mph_dr_of_probe()
249 	for (i = 0; i < ARRAY_SIZE(dev_data->drivers); i++) {  in fsl_usb2_mph_dr_of_probe()
250 		if (!dev_data->drivers[i])  in fsl_usb2_mph_dr_of_probe()
253 					dev_data->drivers[i], idx);  in fsl_usb2_mph_dr_of_probe()
255 			dev_err(&ofdev->dev, "Can't register usb device\n");  in fsl_usb2_mph_dr_of_probe()
271 	device_for_each_child(&ofdev->dev, NULL, __unregister_subdev);  in fsl_usb2_mph_dr_of_remove()
279 #define GC_PPP			(1 << 3)	/* Inv. Port Power Polarity */
285 #define PHYCTRL_PHYE		(1 << 4)	/* On-chip UTMI PHY enable */
286 #define PHYCTRL_BSENH		(1 << 3)	/* Bit Stuff Enable High */
293 	struct fsl_usb2_platform_data *pdata = dev_get_platdata(&pdev->dev);  in fsl_usb2_mpc5121_init()
297 	clk = devm_clk_get(pdev->dev.parent, "ipg");  in fsl_usb2_mpc5121_init()
299 		dev_err(&pdev->dev, "failed to get clk\n");  in fsl_usb2_mpc5121_init()
304 		dev_err(&pdev->dev, "failed to enable clk\n");  in fsl_usb2_mpc5121_init()
307 	pdata->clk = clk;  in fsl_usb2_mpc5121_init()
309 	if (pdata->phy_mode == FSL_USB2_PHY_UTMI_WIDE) {  in fsl_usb2_mpc5121_init()
312 		if (pdata->invert_drvvbus)  in fsl_usb2_mpc5121_init()
315 		if (pdata->invert_pwr_fault)  in fsl_usb2_mpc5121_init()
318 		out_be32(pdata->regs + ISIPHYCTRL, PHYCTRL_PHYE | PHYCTRL_PXE);  in fsl_usb2_mpc5121_init()
319 		out_be32(pdata->regs + USBGENCTRL, reg);  in fsl_usb2_mpc5121_init()
326 	struct fsl_usb2_platform_data *pdata = dev_get_platdata(&pdev->dev);  in fsl_usb2_mpc5121_exit()
328 	pdata->regs = NULL;  in fsl_usb2_mpc5121_exit()
330 	if (pdata->clk)  in fsl_usb2_mpc5121_exit()
331 		clk_disable_unprepare(pdata->clk);  in fsl_usb2_mpc5121_exit()
350 	{ .compatible = "fsl-usb2-mph", .data = &fsl_usb2_mpc8xxx_pd, },
351 	{ .compatible = "fsl-usb2-dr", .data = &fsl_usb2_mpc8xxx_pd, },
353 	{ .compatible = "fsl,mpc5121-usb2-dr", .data = &fsl_usb2_mpc5121_pd, },
361 		.name = "fsl-usb2-mph-dr",