Merge git://git.denx.de/u-boot-mips

7 files changed, 608 insertions, 0 deletions

diff --git a/drivers/cpu/bmips_cpu.c b/drivers/cpu/bmips_cpu.c
index 4ad291a56e..6c612bacdc 100644
--- a/drivers/cpu/bmips_cpu.c
+++ b/drivers/cpu/bmips_cpu.c
@@ -50,6 +50,10 @@ DECLARE_GLOBAL_DATA_PTR;
 #define DMIPSPLLCFG_6358_N2_SHIFT	29
 #define DMIPSPLLCFG_6358_N2_MASK	(0x7 << DMIPSPLLCFG_6358_N2_SHIFT)
 
+#define REG_BCM6362_MISC_STRAPBUS	0x1814
+#define STRAPBUS_6362_FCVO_SHIFT	1
+#define STRAPBUS_6362_FCVO_MASK		(0x1f << STRAPBUS_6362_FCVO_SHIFT)
+
 #define REG_BCM6368_DDR_DMIPSPLLCFG	0x12a0
 #define DMIPSPLLCFG_6368_P1_SHIFT	0
 #define DMIPSPLLCFG_6368_P1_MASK	(0xf << DMIPSPLLCFG_6368_P1_SHIFT)
@@ -194,6 +198,44 @@ static ulong bcm6358_get_cpu_freq(struct bmips_cpu_priv *priv)
 	return (16 * 1000000 * n1 * n2) / m1;
 }
 
+static ulong bcm6362_get_cpu_freq(struct bmips_cpu_priv *priv)
+{
+	unsigned int mips_pll_fcvo;
+
+	mips_pll_fcvo = readl_be(priv->regs + REG_BCM6362_MISC_STRAPBUS);
+	mips_pll_fcvo = (mips_pll_fcvo & STRAPBUS_6362_FCVO_MASK)
+			>> STRAPBUS_6362_FCVO_SHIFT;
+
+	switch (mips_pll_fcvo) {
+	case 0x03:
+	case 0x0b:
+	case 0x13:
+	case 0x1b:
+		return 240000000;
+	case 0x04:
+	case 0x0c:
+	case 0x14:
+	case 0x1c:
+		return 160000000;
+	case 0x05:
+	case 0x0e:
+	case 0x16:
+	case 0x1e:
+	case 0x1f:
+		return 400000000;
+	case 0x06:
+		return 440000000;
+	case 0x07:
+	case 0x17:
+		return 384000000;
+	case 0x15:
+	case 0x1d:
+		return 200000000;
+	default:
+		return 320000000;
+	}
+}
+
 static ulong bcm6368_get_cpu_freq(struct bmips_cpu_priv *priv)
 {
 	unsigned int tmp, p1, p2, ndiv, m1;
@@ -289,6 +331,12 @@ static const struct bmips_cpu_hw bmips_cpu_bcm6358 = {
 	.get_cpu_count = bcm6358_get_cpu_count,
 };
 
+static const struct bmips_cpu_hw bmips_cpu_bcm6362 = {
+	.get_cpu_desc = bmips_short_cpu_desc,
+	.get_cpu_freq = bcm6362_get_cpu_freq,
+	.get_cpu_count = bcm6358_get_cpu_count,
+};
+
 static const struct bmips_cpu_hw bmips_cpu_bcm6368 = {
 	.get_cpu_desc = bmips_short_cpu_desc,
 	.get_cpu_freq = bcm6368_get_cpu_freq,
@@ -395,6 +443,9 @@ static const struct udevice_id bmips_cpu_ids[] = {
 		.compatible = "brcm,bcm6358-cpu",
 		.data = (ulong)&bmips_cpu_bcm6358,
 	}, {
+		.compatible = "brcm,bcm6362-cpu",
+		.data = (ulong)&bmips_cpu_bcm6362,
+	}, {
 		.compatible = "brcm,bcm6368-cpu",
 		.data = (ulong)&bmips_cpu_bcm6368,
 	}, {
diff --git a/drivers/phy/Kconfig b/drivers/phy/Kconfig
index 3b9a09ce18..4e9d09910c 100644
--- a/drivers/phy/Kconfig
+++ b/drivers/phy/Kconfig
@@ -59,6 +59,31 @@ config SPL_NOP_PHY
 	  This is useful when a driver uses the PHY framework but no real PHY
 	  hardware exists.
 
+config BCM6318_USBH_PHY
+	bool "BCM6318 USBH PHY support"
+	depends on PHY && ARCH_BMIPS
+	select POWER_DOMAIN
+	help
+	  Support for the Broadcom MIPS BCM6318 USBH PHY.
+
+config BCM6348_USBH_PHY
+	bool "BCM6348 USBH PHY support"
+	depends on PHY && ARCH_BMIPS
+	help
+	  Support for the Broadcom MIPS BCM6348 USBH PHY.
+
+config BCM6358_USBH_PHY
+	bool "BCM6358 USBH PHY support"
+	depends on PHY && ARCH_BMIPS
+	help
+	  Support for the Broadcom MIPS BCM6358 USBH PHY.
+
+config BCM6368_USBH_PHY
+	bool "BCM6368 USBH PHY support"
+	depends on PHY && ARCH_BMIPS
+	help
+	  Support for the Broadcom MIPS BCM6368 USBH PHY.
+
 config PIPE3_PHY
 	bool "Support omap's PIPE3 PHY"
 	depends on PHY && ARCH_OMAP2PLUS
diff --git a/drivers/phy/Makefile b/drivers/phy/Makefile
index 668040b0bb..68087ae3b1 100644
--- a/drivers/phy/Makefile
+++ b/drivers/phy/Makefile
@@ -7,6 +7,10 @@
 
 obj-$(CONFIG_$(SPL_)PHY) += phy-uclass.o
 obj-$(CONFIG_$(SPL_)NOP_PHY) += nop-phy.o
+obj-$(CONFIG_BCM6318_USBH_PHY) += bcm6318-usbh-phy.o
+obj-$(CONFIG_BCM6348_USBH_PHY) += bcm6348-usbh-phy.o
+obj-$(CONFIG_BCM6358_USBH_PHY) += bcm6358-usbh-phy.o
+obj-$(CONFIG_BCM6368_USBH_PHY) += bcm6368-usbh-phy.o
 obj-$(CONFIG_PHY_SANDBOX) += sandbox-phy.o
 obj-$(CONFIG_$(SPL_)PIPE3_PHY) += ti-pipe3-phy.o
 obj-$(CONFIG_STI_USB_PHY) += sti_usb_phy.o
diff --git a/drivers/phy/bcm6318-usbh-phy.c b/drivers/phy/bcm6318-usbh-phy.c
new file mode 100644
index 0000000000..6d54214581
--- /dev/null
+++ b/drivers/phy/bcm6318-usbh-phy.c
@@ -0,0 +1,144 @@
+/*
+ * Copyright (C) 2018 Álvaro Fernández Rojas <noltari@gmail.com>
+ *
+ * Derived from linux/arch/mips/bcm63xx/usb-common.c:
+ *	Copyright 2008 Maxime Bizon <mbizon@freebox.fr>
+ *	Copyright 2013 Florian Fainelli <florian@openwrt.org>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <clk.h>
+#include <dm.h>
+#include <generic-phy.h>
+#include <power-domain.h>
+#include <reset.h>
+#include <asm/io.h>
+#include <dm/device.h>
+
+/* USBH Setup register */
+#define USBH_SETUP_REG		0x00
+#define USBH_SETUP_IOC		BIT(4)
+
+/* USBH PLL Control register */
+#define USBH_PLL_REG		0x04
+#define USBH_PLL_SUSP_EN	BIT(27)
+#define USBH_PLL_IDDQ_PWRDN	BIT(31)
+
+/* USBH Swap Control register */
+#define USBH_SWAP_REG		0x0c
+#define USBH_SWAP_OHCI_DATA	BIT(0)
+#define USBH_SWAP_OHCI_ENDIAN	BIT(1)
+#define USBH_SWAP_EHCI_DATA	BIT(3)
+#define USBH_SWAP_EHCI_ENDIAN	BIT(4)
+
+/* USBH Sim Control register */
+#define USBH_SIM_REG		0x20
+#define USBH_SIM_LADDR		BIT(5)
+
+struct bcm6318_usbh_priv {
+	void __iomem *regs;
+};
+
+static int bcm6318_usbh_init(struct phy *phy)
+{
+	struct bcm6318_usbh_priv *priv = dev_get_priv(phy->dev);
+
+	/* enable pll control susp */
+	setbits_be32(priv->regs + USBH_PLL_REG, USBH_PLL_SUSP_EN);
+
+	/* configure to work in native cpu endian */
+	clrsetbits_be32(priv->regs + USBH_SWAP_REG,
+			USBH_SWAP_EHCI_ENDIAN | USBH_SWAP_OHCI_ENDIAN,
+			USBH_SWAP_EHCI_DATA | USBH_SWAP_OHCI_DATA);
+
+	/* setup config */
+	setbits_be32(priv->regs + USBH_SETUP_REG, USBH_SETUP_IOC);
+
+	/* disable pll control pwrdn */
+	clrbits_be32(priv->regs + USBH_PLL_REG, USBH_PLL_IDDQ_PWRDN);
+
+	/* sim control config */
+	setbits_be32(priv->regs + USBH_SIM_REG, USBH_SIM_LADDR);
+
+	return 0;
+}
+
+static struct phy_ops bcm6318_usbh_ops = {
+	.init = bcm6318_usbh_init,
+};
+
+static const struct udevice_id bcm6318_usbh_ids[] = {
+	{ .compatible = "brcm,bcm6318-usbh" },
+	{ /* sentinel */ }
+};
+
+static int bcm6318_usbh_probe(struct udevice *dev)
+{
+	struct bcm6318_usbh_priv *priv = dev_get_priv(dev);
+	struct power_domain pwr_dom;
+	struct reset_ctl rst_ctl;
+	struct clk clk;
+	fdt_addr_t addr;
+	fdt_size_t size;
+	int ret;
+
+	addr = devfdt_get_addr_size_index(dev, 0, &size);
+	if (addr == FDT_ADDR_T_NONE)
+		return -EINVAL;
+
+	priv->regs = ioremap(addr, size);
+
+	/* enable usbh clock */
+	ret = clk_get_by_name(dev, "usbh", &clk);
+	if (ret < 0)
+		return ret;
+
+	ret = clk_enable(&clk);
+	if (ret < 0)
+		return ret;
+
+	ret = clk_free(&clk);
+	if (ret < 0)
+		return ret;
+
+	/* enable power domain */
+	ret = power_domain_get(dev, &pwr_dom);
+	if (ret < 0)
+		return ret;
+
+	ret = power_domain_on(&pwr_dom);
+	if (ret < 0)
+		return ret;
+
+	ret = power_domain_free(&pwr_dom);
+	if (ret < 0)
+		return ret;
+
+	/* perform reset */
+	ret = reset_get_by_index(dev, 0, &rst_ctl);
+	if (ret < 0)
+		return ret;
+
+	ret = reset_deassert(&rst_ctl);
+	if (ret < 0)
+		return ret;
+
+	ret = reset_free(&rst_ctl);
+	if (ret < 0)
+		return ret;
+
+	mdelay(100);
+
+	return 0;
+}
+
+U_BOOT_DRIVER(bcm6318_usbh) = {
+	.name = "bcm6318-usbh",
+	.id = UCLASS_PHY,
+	.of_match = bcm6318_usbh_ids,
+	.ops = &bcm6318_usbh_ops,
+	.priv_auto_alloc_size = sizeof(struct bcm6318_usbh_priv),
+	.probe = bcm6318_usbh_probe,
+};
diff --git a/drivers/phy/bcm6348-usbh-phy.c b/drivers/phy/bcm6348-usbh-phy.c
new file mode 100644
index 0000000000..169ee0ecec
--- /dev/null
+++ b/drivers/phy/bcm6348-usbh-phy.c
@@ -0,0 +1,94 @@
+/*
+ * Copyright (C) 2018 Álvaro Fernández Rojas <noltari@gmail.com>
+ *
+ * Derived from linux/arch/mips/bcm63xx/usb-common.c:
+ *	Copyright 2008 Maxime Bizon <mbizon@freebox.fr>
+ *	Copyright 2013 Florian Fainelli <florian@openwrt.org>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <clk.h>
+#include <dm.h>
+#include <generic-phy.h>
+#include <reset.h>
+#include <asm/io.h>
+#include <dm/device.h>
+
+#define USBH_SETUP_PORT1_EN	BIT(0)
+
+struct bcm6348_usbh_priv {
+	void __iomem *regs;
+};
+
+static int bcm6348_usbh_init(struct phy *phy)
+{
+	struct bcm6348_usbh_priv *priv = dev_get_priv(phy->dev);
+
+	writel_be(USBH_SETUP_PORT1_EN, priv->regs);
+
+	return 0;
+}
+
+static struct phy_ops bcm6348_usbh_ops = {
+	.init = bcm6348_usbh_init,
+};
+
+static const struct udevice_id bcm6348_usbh_ids[] = {
+	{ .compatible = "brcm,bcm6348-usbh" },
+	{ /* sentinel */ }
+};
+
+static int bcm6348_usbh_probe(struct udevice *dev)
+{
+	struct bcm6348_usbh_priv *priv = dev_get_priv(dev);
+	struct reset_ctl rst_ctl;
+	struct clk clk;
+	fdt_addr_t addr;
+	fdt_size_t size;
+	int ret;
+
+	addr = devfdt_get_addr_size_index(dev, 0, &size);
+	if (addr == FDT_ADDR_T_NONE)
+		return -EINVAL;
+
+	priv->regs = ioremap(addr, size);
+
+	/* enable usbh clock */
+	ret = clk_get_by_name(dev, "usbh", &clk);
+	if (ret < 0)
+		return ret;
+
+	ret = clk_enable(&clk);
+	if (ret < 0)
+		return ret;
+
+	ret = clk_free(&clk);
+	if (ret < 0)
+		return ret;
+
+	/* perform reset */
+	ret = reset_get_by_index(dev, 0, &rst_ctl);
+	if (ret < 0)
+		return ret;
+
+	ret = reset_deassert(&rst_ctl);
+	if (ret < 0)
+		return ret;
+
+	ret = reset_free(&rst_ctl);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+U_BOOT_DRIVER(bcm6348_usbh) = {
+	.name = "bcm6348-usbh",
+	.id = UCLASS_PHY,
+	.of_match = bcm6348_usbh_ids,
+	.ops = &bcm6348_usbh_ops,
+	.priv_auto_alloc_size = sizeof(struct bcm6348_usbh_priv),
+	.probe = bcm6348_usbh_probe,
+};
diff --git a/drivers/phy/bcm6358-usbh-phy.c b/drivers/phy/bcm6358-usbh-phy.c
new file mode 100644
index 0000000000..e000316a93
--- /dev/null
+++ b/drivers/phy/bcm6358-usbh-phy.c
@@ -0,0 +1,94 @@
+/*
+ * Copyright (C) 2018 Álvaro Fernández Rojas <noltari@gmail.com>
+ *
+ * Derived from linux/arch/mips/bcm63xx/usb-common.c:
+ *	Copyright 2008 Maxime Bizon <mbizon@freebox.fr>
+ *	Copyright 2013 Florian Fainelli <florian@openwrt.org>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <generic-phy.h>
+#include <reset.h>
+#include <asm/io.h>
+#include <dm/device.h>
+
+/* USBH Swap Control register */
+#define USBH_SWAP_REG		0x00
+#define USBH_SWAP_OHCI_DATA	BIT(0)
+#define USBH_SWAP_OHCI_ENDIAN	BIT(1)
+#define USBH_SWAP_EHCI_DATA	BIT(3)
+#define USBH_SWAP_EHCI_ENDIAN	BIT(4)
+
+/* USBH Test register */
+#define USBH_TEST_REG		0x24
+#define USBH_TEST_PORT_CTL	0x1c0020
+
+struct bcm6358_usbh_priv {
+	void __iomem *regs;
+};
+
+static int bcm6358_usbh_init(struct phy *phy)
+{
+	struct bcm6358_usbh_priv *priv = dev_get_priv(phy->dev);
+
+	/* configure to work in native cpu endian */
+	clrsetbits_be32(priv->regs + USBH_SWAP_REG,
+			USBH_SWAP_EHCI_ENDIAN | USBH_SWAP_OHCI_ENDIAN,
+			USBH_SWAP_EHCI_DATA | USBH_SWAP_OHCI_DATA);
+
+	/* test port control */
+	writel_be(USBH_TEST_PORT_CTL, priv->regs + USBH_TEST_REG);
+
+	return 0;
+}
+
+static struct phy_ops bcm6358_usbh_ops = {
+	.init = bcm6358_usbh_init,
+};
+
+static const struct udevice_id bcm6358_usbh_ids[] = {
+	{ .compatible = "brcm,bcm6358-usbh" },
+	{ /* sentinel */ }
+};
+
+static int bcm6358_usbh_probe(struct udevice *dev)
+{
+	struct bcm6358_usbh_priv *priv = dev_get_priv(dev);
+	struct reset_ctl rst_ctl;
+	fdt_addr_t addr;
+	fdt_size_t size;
+	int ret;
+
+	addr = devfdt_get_addr_size_index(dev, 0, &size);
+	if (addr == FDT_ADDR_T_NONE)
+		return -EINVAL;
+
+	priv->regs = ioremap(addr, size);
+
+	/* perform reset */
+	ret = reset_get_by_index(dev, 0, &rst_ctl);
+	if (ret < 0)
+		return ret;
+
+	ret = reset_deassert(&rst_ctl);
+	if (ret < 0)
+		return ret;
+
+	ret = reset_free(&rst_ctl);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+U_BOOT_DRIVER(bcm6358_usbh) = {
+	.name = "bcm6358-usbh",
+	.id = UCLASS_PHY,
+	.of_match = bcm6358_usbh_ids,
+	.ops = &bcm6358_usbh_ops,
+	.priv_auto_alloc_size = sizeof(struct bcm6358_usbh_priv),
+	.probe = bcm6358_usbh_probe,
+};
diff --git a/drivers/phy/bcm6368-usbh-phy.c b/drivers/phy/bcm6368-usbh-phy.c
new file mode 100644
index 0000000000..71abc0fcc4
--- /dev/null
+++ b/drivers/phy/bcm6368-usbh-phy.c
@@ -0,0 +1,196 @@
+/*
+ * Copyright (C) 2018 Álvaro Fernández Rojas <noltari@gmail.com>
+ *
+ * Derived from linux/arch/mips/bcm63xx/usb-common.c:
+ *	Copyright 2008 Maxime Bizon <mbizon@freebox.fr>
+ *	Copyright 2013 Florian Fainelli <florian@openwrt.org>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <clk.h>
+#include <dm.h>
+#include <generic-phy.h>
+#include <power-domain.h>
+#include <reset.h>
+#include <asm/io.h>
+#include <dm/device.h>
+
+/* USBH PLL Control register */
+#define USBH_PLL_REG		0x18
+#define USBH_PLL_IDDQ_PWRDN	BIT(9)
+#define USBH_PLL_PWRDN_DELAY	BIT(10)
+
+/* USBH Swap Control register */
+#define USBH_SWAP_REG		0x1c
+#define USBH_SWAP_OHCI_DATA	BIT(0)
+#define USBH_SWAP_OHCI_ENDIAN	BIT(1)
+#define USBH_SWAP_EHCI_DATA	BIT(3)
+#define USBH_SWAP_EHCI_ENDIAN	BIT(4)
+
+/* USBH Setup register */
+#define USBH_SETUP_REG		0x28
+#define USBH_SETUP_IOC		BIT(4)
+#define USBH_SETUP_IPP		BIT(5)
+
+struct bcm6368_usbh_hw {
+	uint32_t setup_clr;
+	uint32_t pll_clr;
+};
+
+struct bcm6368_usbh_priv {
+	const struct bcm6368_usbh_hw *hw;
+	void __iomem *regs;
+};
+
+static int bcm6368_usbh_init(struct phy *phy)
+{
+	struct bcm6368_usbh_priv *priv = dev_get_priv(phy->dev);
+	const struct bcm6368_usbh_hw *hw = priv->hw;
+
+	/* configure to work in native cpu endian */
+	clrsetbits_be32(priv->regs + USBH_SWAP_REG,
+			USBH_SWAP_EHCI_ENDIAN | USBH_SWAP_OHCI_ENDIAN,
+			USBH_SWAP_EHCI_DATA | USBH_SWAP_OHCI_DATA);
+
+	/* setup config */
+	if (hw->setup_clr)
+		clrbits_be32(priv->regs + USBH_SETUP_REG, hw->setup_clr);
+
+	setbits_be32(priv->regs + USBH_SETUP_REG, USBH_SETUP_IOC);
+
+	/* enable pll control */
+	if (hw->pll_clr)
+		clrbits_be32(priv->regs + USBH_PLL_REG, hw->pll_clr);
+
+	return 0;
+}
+
+static struct phy_ops bcm6368_usbh_ops = {
+	.init = bcm6368_usbh_init,
+};
+
+static const struct bcm6368_usbh_hw bcm6328_hw = {
+	.pll_clr = USBH_PLL_IDDQ_PWRDN | USBH_PLL_PWRDN_DELAY,
+	.setup_clr = 0,
+};
+
+static const struct bcm6368_usbh_hw bcm6362_hw = {
+	.pll_clr = 0,
+	.setup_clr = 0,
+};
+
+static const struct bcm6368_usbh_hw bcm6368_hw = {
+	.pll_clr = 0,
+	.setup_clr = 0,
+};
+
+static const struct bcm6368_usbh_hw bcm63268_hw = {
+	.pll_clr = USBH_PLL_IDDQ_PWRDN | USBH_PLL_PWRDN_DELAY,
+	.setup_clr = USBH_SETUP_IPP,
+};
+
+static const struct udevice_id bcm6368_usbh_ids[] = {
+	{
+		.compatible = "brcm,bcm6328-usbh",
+		.data = (ulong)&bcm6328_hw,
+	}, {
+		.compatible = "brcm,bcm6362-usbh",
+		.data = (ulong)&bcm6362_hw,
+	}, {
+		.compatible = "brcm,bcm6368-usbh",
+		.data = (ulong)&bcm6368_hw,
+	}, {
+		.compatible = "brcm,bcm63268-usbh",
+		.data = (ulong)&bcm63268_hw,
+	}, { /* sentinel */ }
+};
+
+static int bcm6368_usbh_probe(struct udevice *dev)
+{
+	struct bcm6368_usbh_priv *priv = dev_get_priv(dev);
+	const struct bcm6368_usbh_hw *hw =
+		(const struct bcm6368_usbh_hw *)dev_get_driver_data(dev);
+#if defined(CONFIG_POWER_DOMAIN)
+	struct power_domain pwr_dom;
+#endif
+	struct reset_ctl rst_ctl;
+	struct clk clk;
+	fdt_addr_t addr;
+	fdt_size_t size;
+	int ret;
+
+	addr = devfdt_get_addr_size_index(dev, 0, &size);
+	if (addr == FDT_ADDR_T_NONE)
+		return -EINVAL;
+
+	priv->regs = ioremap(addr, size);
+	priv->hw = hw;
+
+	/* enable usbh clock */
+	ret = clk_get_by_name(dev, "usbh", &clk);
+	if (ret < 0)
+		return ret;
+
+	ret = clk_enable(&clk);
+	if (ret < 0)
+		return ret;
+
+	ret = clk_free(&clk);
+	if (ret < 0)
+		return ret;
+
+#if defined(CONFIG_POWER_DOMAIN)
+	/* enable power domain */
+	ret = power_domain_get(dev, &pwr_dom);
+	if (ret < 0)
+		return ret;
+
+	ret = power_domain_on(&pwr_dom);
+	if (ret < 0)
+		return ret;
+
+	ret = power_domain_free(&pwr_dom);
+	if (ret < 0)
+		return ret;
+#endif
+
+	/* perform reset */
+	ret = reset_get_by_index(dev, 0, &rst_ctl);
+	if (ret < 0)
+		return ret;
+
+	ret = reset_deassert(&rst_ctl);
+	if (ret < 0)
+		return ret;
+
+	ret = reset_free(&rst_ctl);
+	if (ret < 0)
+		return ret;
+
+	/* enable usb_ref clock */
+	ret = clk_get_by_name(dev, "usb_ref", &clk);
+	if (!ret) {
+		ret = clk_enable(&clk);
+		if (ret < 0)
+			return ret;
+
+		ret = clk_free(&clk);
+		if (ret < 0)
+			return ret;
+	}
+
+	mdelay(100);
+
+	return 0;
+}
+
+U_BOOT_DRIVER(bcm6368_usbh) = {
+	.name = "bcm6368-usbh",
+	.id = UCLASS_PHY,
+	.of_match = bcm6368_usbh_ids,
+	.ops = &bcm6368_usbh_ops,
+	.priv_auto_alloc_size = sizeof(struct bcm6368_usbh_priv),
+	.probe = bcm6368_usbh_probe,
+};