1 // SPDX-License-Identifier: GPL-2.0-or-later
3  * BCM6328 USBH PHY Controller Driver
76 	/* PLLC bits to set/clear for power on */
80 	/* Setup bits to set/clear for power on */
87 	/* Test Port Control value to set if non-zero */
108 		[USBH_BRT_CONTROL1] = -1,
109 		[USBH_BRT_CONTROL2] = -1,
110 		[USBH_BRT_STATUS1] = -1,
111 		[USBH_BRT_STATUS2] = -1,
116 		[USBH_GENERIC_CONTROL] = -1,
155 		[USBH_BRT_CONTROL1] = -1,
156 		[USBH_BRT_CONTROL2] = -1,
157 		[USBH_BRT_STATUS1] = -1,
158 		[USBH_BRT_STATUS2] = -1,
159 		[USBH_UTMI_CONTROL1] = -1,
161 		[USBH_PLL_CONTROL1] = -1,
163 		[USBH_GENERIC_CONTROL] = -1,
164 		[USBH_FRAME_ADJUST_VALUE] = -1,
165 		[USBH_SETUP] = -1,
166 		[USBH_MDIO] = -1,
167 		[USBH_MDIO32] = -1,
168 		[USBH_USB_SIM_CONTROL] = -1,
173 	 * help, so the magic value is used as-is.
188 		[USBH_GENERIC_CONTROL] = -1,
227 	return (usbh->variant->regs[reg] >= 0);  in usbh_has_reg()
232 	return __raw_readl(usbh->base + usbh->variant->regs[reg]);  in usbh_readl()
238 	__raw_writel(value, usbh->base + usbh->variant->regs[reg]);  in usbh_writel()
246 	ret = clk_prepare_enable(usbh->usbh_clk);  in bcm63xx_usbh_phy_init()
248 		dev_err(&phy->dev, "unable to enable usbh clock: %d\n", ret);  in bcm63xx_usbh_phy_init()
252 	ret = clk_prepare_enable(usbh->usb_ref_clk);  in bcm63xx_usbh_phy_init()
254 		dev_err(&phy->dev, "unable to enable usb_ref clock: %d\n", ret);  in bcm63xx_usbh_phy_init()
255 		clk_disable_unprepare(usbh->usbh_clk);  in bcm63xx_usbh_phy_init()
259 	ret = reset_control_reset(usbh->reset);  in bcm63xx_usbh_phy_init()
261 		dev_err(&phy->dev, "unable to reset device: %d\n", ret);  in bcm63xx_usbh_phy_init()
262 		clk_disable_unprepare(usbh->usb_ref_clk);  in bcm63xx_usbh_phy_init()
263 		clk_disable_unprepare(usbh->usbh_clk);  in bcm63xx_usbh_phy_init()
277 		if (usbh->device_mode && usbh->variant->swapctl_dev_set)  in bcm63xx_usbh_phy_init()
278 			val |= usbh->variant->swapctl_dev_set;  in bcm63xx_usbh_phy_init()
286 		val |= usbh->variant->setup_set;  in bcm63xx_usbh_phy_init()
287 		val &= ~usbh->variant->setup_clr;  in bcm63xx_usbh_phy_init()
295 		val |= usbh->variant->usc_set;  in bcm63xx_usbh_phy_init()
300 	if (usbh->variant->tpc_val &&  in bcm63xx_usbh_phy_init()
303 			    usbh->variant->tpc_val);  in bcm63xx_usbh_phy_init()
305 	if (usbh->device_mode &&  in bcm63xx_usbh_phy_init()
307 	    usbh->variant->utmictl1_dev_set) {  in bcm63xx_usbh_phy_init()
310 		val |= usbh->variant->utmictl1_dev_set;  in bcm63xx_usbh_phy_init()
325 		val |= usbh->variant->power_pllc_set;  in bcm63xx_usbh_phy_power_on()
326 		val &= ~usbh->variant->power_pllc_clr;  in bcm63xx_usbh_phy_power_on()
341 		val &= ~usbh->variant->power_pllc_set;  in bcm63xx_usbh_phy_power_off()
342 		val |= usbh->variant->power_pllc_clr;  in bcm63xx_usbh_phy_power_off()
354 	clk_disable_unprepare(usbh->usbh_clk);  in bcm63xx_usbh_phy_exit()
355 	clk_disable_unprepare(usbh->usb_ref_clk);  in bcm63xx_usbh_phy_exit()
373 	usbh->device_mode = !!args->args[0];  in bcm63xx_usbh_phy_xlate()
380 	struct device *dev = &pdev->dev;  in bcm63xx_usbh_phy_probe()
388 		return -ENOMEM;  in bcm63xx_usbh_phy_probe()
392 		return -EINVAL;  in bcm63xx_usbh_phy_probe()
393 	usbh->variant = variant;  in bcm63xx_usbh_phy_probe()
395 	usbh->base = devm_platform_ioremap_resource(pdev, 0);  in bcm63xx_usbh_phy_probe()
396 	if (IS_ERR(usbh->base))  in bcm63xx_usbh_phy_probe()
397 		return PTR_ERR(usbh->base);  in bcm63xx_usbh_phy_probe()
399 	usbh->reset = devm_reset_control_get_exclusive(dev, NULL);  in bcm63xx_usbh_phy_probe()
400 	if (IS_ERR(usbh->reset)) {  in bcm63xx_usbh_phy_probe()
401 		if (PTR_ERR(usbh->reset) != -EPROBE_DEFER)  in bcm63xx_usbh_phy_probe()
403 		return PTR_ERR(usbh->reset);  in bcm63xx_usbh_phy_probe()
406 	usbh->usbh_clk = devm_clk_get_optional(dev, "usbh");  in bcm63xx_usbh_phy_probe()
407 	if (IS_ERR(usbh->usbh_clk))  in bcm63xx_usbh_phy_probe()
408 		return PTR_ERR(usbh->usbh_clk);  in bcm63xx_usbh_phy_probe()
410 	usbh->usb_ref_clk = devm_clk_get_optional(dev, "usb_ref");  in bcm63xx_usbh_phy_probe()
411 	if (IS_ERR(usbh->usb_ref_clk))  in bcm63xx_usbh_phy_probe()
412 		return PTR_ERR(usbh->usb_ref_clk);  in bcm63xx_usbh_phy_probe()
436 	{ .compatible = "brcm,bcm6318-usbh-phy", .data = &usbh_bcm6318 },
437 	{ .compatible = "brcm,bcm6328-usbh-phy", .data = &usbh_bcm6328 },
438 	{ .compatible = "brcm,bcm6358-usbh-phy", .data = &usbh_bcm6358 },
439 	{ .compatible = "brcm,bcm6362-usbh-phy", .data = &usbh_bcm6368 },
440 	{ .compatible = "brcm,bcm6368-usbh-phy", .data = &usbh_bcm6368 },
441 	{ .compatible = "brcm,bcm63268-usbh-phy", .data = &usbh_bcm63268 },
448 		.name = "bcm63xx-usbh-phy",