Merge branch 'master' of git://git.denx.de/u-boot-usb

drivers/usb/host/dwc2.c

@@ -15,6 +15,7 @@
 #include <wait_bit.h>
 #include <asm/io.h>
 #include <power/regulator.h>
+#include <reset.h>
 
 #include "dwc2.h"
 
@@ -49,6 +50,8 @@ struct dwc2_priv {
 	 */
 	bool hnp_srp_disable;
 	bool oc_disable;
+
+	struct reset_ctl_bulk	resets;
 };
 
 #ifndef CONFIG_DM_USB
@@ -1124,11 +1127,43 @@ int _submit_int_msg(struct dwc2_priv *priv, struct usb_device *dev,
 	}
 }
 
+static int dwc2_reset(struct udevice *dev)
+{
+	int ret;
+	struct dwc2_priv *priv = dev_get_priv(dev);
+
+	ret = reset_get_bulk(dev, &priv->resets);
+	if (ret) {
+		dev_warn(dev, "Can't get reset: %d\n", ret);
+		/* Return 0 if error due to !CONFIG_DM_RESET and reset
+		 * DT property is not present.
+		 */
+		if (ret == -ENOENT || ret == -ENOTSUPP)
+			return 0;
+		else
+			return ret;
+	}
+
+	ret = reset_deassert_bulk(&priv->resets);
+	if (ret) {
+		reset_release_bulk(&priv->resets);
+		dev_err(dev, "Failed to reset: %d\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
 static int dwc2_init_common(struct udevice *dev, struct dwc2_priv *priv)
 {
 	struct dwc2_core_regs *regs = priv->regs;
 	uint32_t snpsid;
 	int i, j;
+	int ret;
+
+	ret = dwc2_reset(dev);
+	if (ret)
+		return ret;
 
 	snpsid = readl(&regs->gsnpsid);
 	dev_info(dev, "Core Release: %x.%03x\n",
@@ -1303,6 +1338,8 @@ static int dwc2_usb_remove(struct udevice *dev)
 
 	dwc2_uninit_common(priv->regs);
 
+	reset_release_bulk(&priv->resets);
+
 	return 0;
 }
 

drivers/usb/host/ehci-generic.c

@@ -26,56 +26,6 @@ struct generic_ehci {
 	int reset_count;
 };
 
-static int ehci_setup_phy(struct udevice *dev, int index)
-{
-	struct generic_ehci *priv = dev_get_priv(dev);
-	int ret;
-
-	ret = generic_phy_get_by_index(dev, index, &priv->phy);
-	if (ret) {
-		if (ret != -ENOENT) {
-			dev_err(dev, "failed to get usb phy\n");
-			return ret;
-		}
-	} else {
-		ret = generic_phy_init(&priv->phy);
-		if (ret) {
-			dev_err(dev, "failed to init usb phy\n");
-			return ret;
-		}
-
-		ret = generic_phy_power_on(&priv->phy);
-		if (ret) {
-			dev_err(dev, "failed to power on usb phy\n");
-			return generic_phy_exit(&priv->phy);
-		}
-	}
-
-	return 0;
-}
-
-static int ehci_shutdown_phy(struct udevice *dev)
-{
-	struct generic_ehci *priv = dev_get_priv(dev);
-	int ret = 0;
-
-	if (generic_phy_valid(&priv->phy)) {
-		ret = generic_phy_power_off(&priv->phy);
-		if (ret) {
-			dev_err(dev, "failed to power off usb phy\n");
-			return ret;
-		}
-
-		ret = generic_phy_exit(&priv->phy);
-		if (ret) {
-			dev_err(dev, "failed to power off usb phy\n");
-			return ret;
-		}
-	}
-
-	return 0;
-}
-
 static int ehci_usb_probe(struct udevice *dev)
 {
 	struct generic_ehci *priv = dev_get_priv(dev);
@@ -145,7 +95,7 @@ static int ehci_usb_probe(struct udevice *dev)
 		}
 	}
 
-	err = ehci_setup_phy(dev, 0);
+	err = ehci_setup_phy(dev, &priv->phy, 0);
 	if (err)
 		goto reset_err;
 
@@ -160,7 +110,7 @@ static int ehci_usb_probe(struct udevice *dev)
 	return 0;
 
 phy_err:
-	ret = ehci_shutdown_phy(dev);
+	ret = ehci_shutdown_phy(dev, &priv->phy);
 	if (ret)
 		dev_err(dev, "failed to shutdown usb phy\n");
 
@@ -185,7 +135,7 @@ static int ehci_usb_remove(struct udevice *dev)
 	if (ret)
 		return ret;
 
-	ret = ehci_shutdown_phy(dev);
+	ret = ehci_shutdown_phy(dev, &priv->phy);
 	if (ret)
 		return ret;
 

drivers/usb/host/ehci-hcd.c

@@ -1675,3 +1675,69 @@ struct dm_usb_ops ehci_usb_ops = {
 };
 
 #endif
+
+#ifdef CONFIG_PHY
+int ehci_setup_phy(struct udevice *dev, struct phy *phy, int index)
+{
+	int ret;
+
+	if (!phy)
+		return 0;
+
+	ret = generic_phy_get_by_index(dev, index, phy);
+	if (ret) {
+		if (ret != -ENOENT) {
+			dev_err(dev, "failed to get usb phy\n");
+			return ret;
+		}
+	} else {
+		ret = generic_phy_init(phy);
+		if (ret) {
+			dev_err(dev, "failed to init usb phy\n");
+			return ret;
+		}
+
+		ret = generic_phy_power_on(phy);
+		if (ret) {
+			dev_err(dev, "failed to power on usb phy\n");
+			return generic_phy_exit(phy);
+		}
+	}
+
+	return 0;
+}
+
+int ehci_shutdown_phy(struct udevice *dev, struct phy *phy)
+{
+	int ret = 0;
+
+	if (!phy)
+		return 0;
+
+	if (generic_phy_valid(phy)) {
+		ret = generic_phy_power_off(phy);
+		if (ret) {
+			dev_err(dev, "failed to power off usb phy\n");
+			return ret;
+		}
+
+		ret = generic_phy_exit(phy);
+		if (ret) {
+			dev_err(dev, "failed to power off usb phy\n");
+			return ret;
+		}
+	}
+
+	return 0;
+}
+#else
+int ehci_setup_phy(struct udevice *dev, struct phy *phy, int index)
+{
+	return 0;
+}
+
+int ehci_shutdown_phy(struct udevice *dev, struct phy *phy)
+{
+	return 0;
+}
+#endif

drivers/usb/host/ehci-pci.c

@@ -16,17 +16,23 @@
 /* Information about a USB port */
 struct ehci_pci_priv {
 	struct ehci_ctrl ehci;
+	struct phy phy;
 };
 
 #ifdef CONFIG_DM_USB
-
-static void ehci_pci_init(struct udevice *dev, struct ehci_hccr **ret_hccr,
+static int ehci_pci_init(struct udevice *dev, struct ehci_hccr **ret_hccr,
 			  struct ehci_hcor **ret_hcor)
 {
+	struct ehci_pci_priv *priv = dev_get_priv(dev);
 	struct ehci_hccr *hccr;
 	struct ehci_hcor *hcor;
+	int ret;
 	u32 cmd;
 
+	ret = ehci_setup_phy(dev, &priv->phy, 0);
+	if (ret)
+		return ret;
+
 	hccr = (struct ehci_hccr *)dm_pci_map_bar(dev,
 			PCI_BASE_ADDRESS_0, PCI_REGION_MEM);
 	hcor = (struct ehci_hcor *)((uintptr_t) hccr +
@@ -43,6 +49,8 @@ static void ehci_pci_init(struct udevice *dev, struct ehci_hccr **ret_hccr,
 	dm_pci_read_config32(dev, PCI_COMMAND, &cmd);
 	cmd |= PCI_COMMAND_MASTER;
 	dm_pci_write_config32(dev, PCI_COMMAND, cmd);
+
+	return 0;
 }
 
 #else
@@ -120,12 +128,27 @@ static int ehci_pci_probe(struct udevice *dev)
 {
 	struct ehci_hccr *hccr;
 	struct ehci_hcor *hcor;
+	int ret;
 
-	ehci_pci_init(dev, &hccr, &hcor);
+	ret = ehci_pci_init(dev, &hccr, &hcor);
+	if (ret)
+		return ret;
 
 	return ehci_register(dev, hccr, hcor, NULL, 0, USB_INIT_HOST);
 }
 
+static int ehci_pci_remove(struct udevice *dev)
+{
+	struct ehci_pci_priv *priv = dev_get_priv(dev);
+	int ret;
+
+	ret = ehci_deregister(dev);
+	if (ret)
+		return ret;
+
+	return ehci_shutdown_phy(dev, &priv->phy);
+}
+
 static const struct udevice_id ehci_pci_ids[] = {
 	{ .compatible = "ehci-pci" },
 	{ }
@@ -135,7 +158,7 @@ U_BOOT_DRIVER(ehci_pci) = {
 	.name	= "ehci_pci",
 	.id	= UCLASS_USB,
 	.probe = ehci_pci_probe,
-	.remove = ehci_deregister,
+	.remove = ehci_pci_remove,
 	.of_match = ehci_pci_ids,
 	.ops	= &ehci_usb_ops,
 	.platdata_auto_alloc_size = sizeof(struct usb_platdata),

drivers/usb/host/ehci.h

@@ -9,6 +9,7 @@
 #define USB_EHCI_H
 
 #include <usb.h>
+#include <generic-phy.h>
 
 /* Section 2.2.3 - N_PORTS */
 #define MAX_HC_PORTS		15
@@ -288,4 +289,8 @@ int ehci_register(struct udevice *dev, struct ehci_hccr *hccr,
 int ehci_deregister(struct udevice *dev);
 extern struct dm_usb_ops ehci_usb_ops;
 
+/* EHCI PHY functions */
+int ehci_setup_phy(struct udevice *dev, struct phy *phy, int index);
+int ehci_shutdown_phy(struct udevice *dev, struct phy *phy);
+
 #endif /* USB_EHCI_H */

include/generic-phy.h

@@ -7,6 +7,7 @@
 #ifndef __GENERIC_PHY_H
 #define __GENERIC_PHY_H
 
+struct ofnode_phandle_args;
 
 /**
  * struct phy - A handle to (allowing control of) a single phy port.