Merge tag 'i3c/for-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linuxgrafted

Pull I3C updates from Alexandre Belloni:
 "A new driver this cycle, for the AMD AXI I3C controller.

  There are also new features such as IBI wakeup support, SETAASA device
  discovery and ACPI support for the the DAA methods, meaning we can now
  communicate with the SPD devices on DDR5 modules.

  New driver:
   - AMD AXI I3C master controller

  Subsystem:
   - I3C Common Command Code (CCC) handling improvements, especially
     around GET CCCs
   - SETAASA device discovery support
   - ACPI support for all existing DAA methods like SETDASA, SETNEWDA as
     well as I2C devices on I3C bus
   - IBI-based wakeup support

  Drivers:
   - dw: SETAASA support
   - mipi-i3c-hci: advertise IBI wakeup capability, AMD_PT I3C
     controller support, PIO queue management support for HCI v1.2
   - renesas: improve suspend to RAM support, add runtime PM support"

* tag 'i3c/for-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux: (70 commits)
  i3c: dw: reduce do_daa time if there's no client
  i3c: mipi-i3c-hci: Add support for AMD_PT I3C controller
  i3c: mipi-i3c-hci: Add PIO queue management support for HCI v1.2
  i3c: mipi-i3c-hci: Fix missing STAT_IBI_STATUS_THLD in PIO mode
  i3c: dw: rename "pclk" to "apb" to match dt-binding
  i3c: dw: make struct dw_i3c_cmd smaller
  i3c: dw: use COMMAND_PORT_TRANSFER_ARG instead of hardcoding
  i3c: renesas: Don't register devices when ENTDAA times out
  i3c: master: dw-i3c-master: fix OD timing for first broadcast
  i3c: mipi-i3c-hci: Advertise IBI wakeup capability
  i3c: mipi-i3c-hci: Factor out i3c_hci_sysdev()
  i3c: mipi-i3c-hci-pci: Propagate I3C wakeup requirements to PCI
  i3c: master: Reject IBI requests from non-IBI-capable devices
  i3c: master: Add helper to query bus wakeup requirements
  i3c: master: Report wakeup events for IBIs
  i3c: master: Support IBI-based wakeup capability
  i3c: master: Fix potential UAF in i3c_device_match()
  i3c: master: Fix potential UAF in i3c_device_uevent()
  i3c: Make dev->desc locking assumptions explicit
  i3c: master: Fix use-after-free of master->this
  ...

7 files changed, 1977 insertions, 0 deletions

diff --git a/drivers/phy/socionext/Kconfig b/drivers/phy/socionext/Kconfig
new file mode 100644
index 000000000..8ae644756
--- /dev/null
+++ b/drivers/phy/socionext/Kconfig
@@ -0,0 +1,46 @@
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# PHY drivers for Socionext platforms.
+#
+
+config PHY_UNIPHIER_USB2
+	tristate "UniPhier USB2 PHY driver"
+	depends on ARCH_UNIPHIER || COMPILE_TEST
+	depends on OF && HAS_IOMEM
+	select GENERIC_PHY
+	select MFD_SYSCON
+	help
+	  Enable this to support USB PHY implemented on USB2 controller
+	  on UniPhier SoCs. This driver provides interface to interact
+	  with USB 2.0 PHY that is part of the UniPhier SoC.
+	  In case of Pro4, it is necessary to specify this USB2 PHY instead
+	  of USB3 HS-PHY.
+
+config PHY_UNIPHIER_USB3
+	tristate "UniPhier USB3 PHY driver"
+	depends on ARCH_UNIPHIER || COMPILE_TEST
+	depends on OF && HAS_IOMEM
+	select GENERIC_PHY
+	help
+	  Enable this to support USB PHY implemented in USB3 controller
+	  on UniPhier SoCs. This controller supports USB3.0 and lower speed.
+
+config PHY_UNIPHIER_PCIE
+	tristate "Uniphier PHY driver for PCIe controller"
+	depends on ARCH_UNIPHIER || COMPILE_TEST
+	depends on OF && HAS_IOMEM
+	default PCIE_UNIPHIER
+	select GENERIC_PHY
+	help
+	  Enable this to support PHY implemented in PCIe controller
+	  on UniPhier SoCs. This driver supports LD20 and PXs3 SoCs.
+
+config PHY_UNIPHIER_AHCI
+	tristate "UniPhier AHCI PHY driver"
+	depends on ARCH_UNIPHIER || COMPILE_TEST
+	depends on OF && HAS_IOMEM
+	default SATA_AHCI_PLATFORM
+	select GENERIC_PHY
+	help
+	  Enable this to support PHY implemented in AHCI controller
+	  on UniPhier SoCs. This driver supports Pro4, PXs2 and PXs3 SoCs.
diff --git a/drivers/phy/socionext/Makefile b/drivers/phy/socionext/Makefile
new file mode 100644
index 000000000..e67c2da66
--- /dev/null
+++ b/drivers/phy/socionext/Makefile
@@ -0,0 +1,9 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Makefile for the phy drivers.
+#
+
+obj-$(CONFIG_PHY_UNIPHIER_USB2)	+= phy-uniphier-usb2.o
+obj-$(CONFIG_PHY_UNIPHIER_USB3)	+= phy-uniphier-usb3hs.o phy-uniphier-usb3ss.o
+obj-$(CONFIG_PHY_UNIPHIER_PCIE)	+= phy-uniphier-pcie.o
+obj-$(CONFIG_PHY_UNIPHIER_AHCI)	+= phy-uniphier-ahci.o
diff --git a/drivers/phy/socionext/phy-uniphier-ahci.c b/drivers/phy/socionext/phy-uniphier-ahci.c
new file mode 100644
index 000000000..28cf3efe0
--- /dev/null
+++ b/drivers/phy/socionext/phy-uniphier-ahci.c
@@ -0,0 +1,514 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * phy-uniphier-ahci.c - PHY driver for UniPhier AHCI controller
+ * Copyright 2016-2020, Socionext Inc.
+ * Author: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
+ */
+
+#include <linux/bitfield.h>
+#include <linux/bitops.h>
+#include <linux/clk.h>
+#include <linux/iopoll.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_platform.h>
+#include <linux/phy/phy.h>
+#include <linux/platform_device.h>
+#include <linux/reset.h>
+
+struct uniphier_ahciphy_priv {
+	struct device *dev;
+	void __iomem  *base;
+	struct clk *clk, *clk_parent, *clk_parent_gio;
+	struct reset_control *rst, *rst_parent, *rst_parent_gio;
+	struct reset_control *rst_pm, *rst_tx, *rst_rx;
+	const struct uniphier_ahciphy_soc_data *data;
+};
+
+struct uniphier_ahciphy_soc_data {
+	int (*init)(struct uniphier_ahciphy_priv *priv);
+	int (*power_on)(struct uniphier_ahciphy_priv *priv);
+	int (*power_off)(struct uniphier_ahciphy_priv *priv);
+	bool is_legacy;
+	bool is_ready_high;
+	bool is_phy_clk;
+};
+
+/* for Pro4 */
+#define CKCTRL0				0x0
+#define CKCTRL0_CK_OFF			BIT(9)
+#define CKCTRL0_NCY_MASK		GENMASK(8, 4)
+#define CKCTRL0_NCY5_MASK		GENMASK(3, 2)
+#define CKCTRL0_PRESCALE_MASK		GENMASK(1, 0)
+#define CKCTRL1				0x4
+#define CKCTRL1_LOS_LVL_MASK		GENMASK(20, 16)
+#define CKCTRL1_TX_LVL_MASK		GENMASK(12, 8)
+#define RXTXCTRL			0x8
+#define RXTXCTRL_RX_EQ_VALL_MASK	GENMASK(31, 29)
+#define RXTXCTRL_RX_DPLL_MODE_MASK	GENMASK(28, 26)
+#define RXTXCTRL_TX_ATTEN_MASK		GENMASK(14, 12)
+#define RXTXCTRL_TX_BOOST_MASK		GENMASK(11, 8)
+#define RXTXCTRL_TX_EDGERATE_MASK	GENMASK(3, 2)
+#define RXTXCTRL_TX_CKO_EN		BIT(0)
+#define RSTPWR				0x30
+#define RSTPWR_RX_EN_VAL		BIT(18)
+
+/* for PXs2/PXs3 */
+#define CKCTRL				0x0
+#define CKCTRL_P0_READY			BIT(15)
+#define CKCTRL_P0_RESET			BIT(10)
+#define CKCTRL_REF_SSP_EN		BIT(9)
+#define TXCTRL0				0x4
+#define TXCTRL0_AMP_G3_MASK		GENMASK(22, 16)
+#define TXCTRL0_AMP_G2_MASK		GENMASK(14, 8)
+#define TXCTRL0_AMP_G1_MASK		GENMASK(6, 0)
+#define TXCTRL1				0x8
+#define TXCTRL1_DEEMPH_G3_MASK		GENMASK(21, 16)
+#define TXCTRL1_DEEMPH_G2_MASK		GENMASK(13, 8)
+#define TXCTRL1_DEEMPH_G1_MASK		GENMASK(5, 0)
+#define RXCTRL				0xc
+#define RXCTRL_LOS_LVL_MASK		GENMASK(20, 16)
+#define RXCTRL_LOS_BIAS_MASK		GENMASK(10, 8)
+#define RXCTRL_RX_EQ_MASK		GENMASK(2, 0)
+
+static int uniphier_ahciphy_pro4_init(struct uniphier_ahciphy_priv *priv)
+{
+	u32 val;
+
+	/* set phy MPLL parameters */
+	val = readl(priv->base + CKCTRL0);
+	val &= ~CKCTRL0_NCY_MASK;
+	val |= FIELD_PREP(CKCTRL0_NCY_MASK, 0x6);
+	val &= ~CKCTRL0_NCY5_MASK;
+	val |= FIELD_PREP(CKCTRL0_NCY5_MASK, 0x2);
+	val &= ~CKCTRL0_PRESCALE_MASK;
+	val |= FIELD_PREP(CKCTRL0_PRESCALE_MASK, 0x1);
+	writel(val, priv->base + CKCTRL0);
+
+	/* setup phy control parameters */
+	val = readl(priv->base + CKCTRL1);
+	val &= ~CKCTRL1_LOS_LVL_MASK;
+	val |= FIELD_PREP(CKCTRL1_LOS_LVL_MASK, 0x10);
+	val &= ~CKCTRL1_TX_LVL_MASK;
+	val |= FIELD_PREP(CKCTRL1_TX_LVL_MASK, 0x06);
+	writel(val, priv->base + CKCTRL1);
+
+	val = readl(priv->base + RXTXCTRL);
+	val &= ~RXTXCTRL_RX_EQ_VALL_MASK;
+	val |= FIELD_PREP(RXTXCTRL_RX_EQ_VALL_MASK, 0x6);
+	val &= ~RXTXCTRL_RX_DPLL_MODE_MASK;
+	val |= FIELD_PREP(RXTXCTRL_RX_DPLL_MODE_MASK, 0x3);
+	val &= ~RXTXCTRL_TX_ATTEN_MASK;
+	val |= FIELD_PREP(RXTXCTRL_TX_ATTEN_MASK, 0x3);
+	val &= ~RXTXCTRL_TX_BOOST_MASK;
+	val |= FIELD_PREP(RXTXCTRL_TX_BOOST_MASK, 0x5);
+	val &= ~RXTXCTRL_TX_EDGERATE_MASK;
+	val |= FIELD_PREP(RXTXCTRL_TX_EDGERATE_MASK, 0x0);
+	writel(val, priv->base + RXTXCTRL);
+
+	return 0;
+}
+
+static int uniphier_ahciphy_pro4_power_on(struct uniphier_ahciphy_priv *priv)
+{
+	u32 val;
+	int ret;
+
+	/* enable reference clock for phy */
+	val = readl(priv->base + CKCTRL0);
+	val &= ~CKCTRL0_CK_OFF;
+	writel(val, priv->base + CKCTRL0);
+
+	/* enable TX clock */
+	val = readl(priv->base + RXTXCTRL);
+	val |= RXTXCTRL_TX_CKO_EN;
+	writel(val, priv->base + RXTXCTRL);
+
+	/* wait until RX is ready */
+	ret = readl_poll_timeout(priv->base + RSTPWR, val,
+				 !(val & RSTPWR_RX_EN_VAL), 200, 2000);
+	if (ret) {
+		dev_err(priv->dev, "Failed to check whether Rx is ready\n");
+		goto out_disable_clock;
+	}
+
+	/* release all reset */
+	ret = reset_control_deassert(priv->rst_pm);
+	if (ret) {
+		dev_err(priv->dev, "Failed to release PM reset\n");
+		goto out_disable_clock;
+	}
+
+	ret = reset_control_deassert(priv->rst_tx);
+	if (ret) {
+		dev_err(priv->dev, "Failed to release Tx reset\n");
+		goto out_reset_pm_assert;
+	}
+
+	ret = reset_control_deassert(priv->rst_rx);
+	if (ret) {
+		dev_err(priv->dev, "Failed to release Rx reset\n");
+		goto out_reset_tx_assert;
+	}
+
+	return 0;
+
+out_reset_tx_assert:
+	reset_control_assert(priv->rst_tx);
+out_reset_pm_assert:
+	reset_control_assert(priv->rst_pm);
+
+out_disable_clock:
+	/* disable TX clock */
+	val = readl(priv->base + RXTXCTRL);
+	val &= ~RXTXCTRL_TX_CKO_EN;
+	writel(val, priv->base + RXTXCTRL);
+
+	/* disable reference clock for phy */
+	val = readl(priv->base + CKCTRL0);
+	val |= CKCTRL0_CK_OFF;
+	writel(val, priv->base + CKCTRL0);
+
+	return ret;
+}
+
+static int uniphier_ahciphy_pro4_power_off(struct uniphier_ahciphy_priv *priv)
+{
+	u32 val;
+
+	reset_control_assert(priv->rst_rx);
+	reset_control_assert(priv->rst_tx);
+	reset_control_assert(priv->rst_pm);
+
+	/* disable TX clock */
+	val = readl(priv->base + RXTXCTRL);
+	val &= ~RXTXCTRL_TX_CKO_EN;
+	writel(val, priv->base + RXTXCTRL);
+
+	/* disable reference clock for phy */
+	val = readl(priv->base + CKCTRL0);
+	val |= CKCTRL0_CK_OFF;
+	writel(val, priv->base + CKCTRL0);
+
+	return 0;
+}
+
+static void uniphier_ahciphy_pxs2_enable(struct uniphier_ahciphy_priv *priv,
+					 bool enable)
+{
+	u32 val;
+
+	val = readl(priv->base + CKCTRL);
+
+	if (enable) {
+		val |= CKCTRL_REF_SSP_EN;
+		writel(val, priv->base + CKCTRL);
+		val &= ~CKCTRL_P0_RESET;
+		writel(val, priv->base + CKCTRL);
+	} else {
+		val |= CKCTRL_P0_RESET;
+		writel(val, priv->base + CKCTRL);
+		val &= ~CKCTRL_REF_SSP_EN;
+		writel(val, priv->base + CKCTRL);
+	}
+}
+
+static int uniphier_ahciphy_pxs2_power_on(struct uniphier_ahciphy_priv *priv)
+{
+	int ret;
+	u32 val;
+
+	uniphier_ahciphy_pxs2_enable(priv, true);
+
+	/* wait until PLL is ready */
+	if (priv->data->is_ready_high)
+		ret = readl_poll_timeout(priv->base + CKCTRL, val,
+					 (val & CKCTRL_P0_READY), 200, 400);
+	else
+		ret = readl_poll_timeout(priv->base + CKCTRL, val,
+					 !(val & CKCTRL_P0_READY), 200, 400);
+	if (ret) {
+		dev_err(priv->dev, "Failed to check whether PHY PLL is ready\n");
+		uniphier_ahciphy_pxs2_enable(priv, false);
+	}
+
+	return ret;
+}
+
+static int uniphier_ahciphy_pxs2_power_off(struct uniphier_ahciphy_priv *priv)
+{
+	uniphier_ahciphy_pxs2_enable(priv, false);
+
+	return 0;
+}
+
+static int uniphier_ahciphy_pxs3_init(struct uniphier_ahciphy_priv *priv)
+{
+	int i;
+	u32 val;
+
+	/* setup port parameter */
+	val = readl(priv->base + TXCTRL0);
+	val &= ~TXCTRL0_AMP_G3_MASK;
+	val |= FIELD_PREP(TXCTRL0_AMP_G3_MASK, 0x73);
+	val &= ~TXCTRL0_AMP_G2_MASK;
+	val |= FIELD_PREP(TXCTRL0_AMP_G2_MASK, 0x46);
+	val &= ~TXCTRL0_AMP_G1_MASK;
+	val |= FIELD_PREP(TXCTRL0_AMP_G1_MASK, 0x42);
+	writel(val, priv->base + TXCTRL0);
+
+	val = readl(priv->base + TXCTRL1);
+	val &= ~TXCTRL1_DEEMPH_G3_MASK;
+	val |= FIELD_PREP(TXCTRL1_DEEMPH_G3_MASK, 0x23);
+	val &= ~TXCTRL1_DEEMPH_G2_MASK;
+	val |= FIELD_PREP(TXCTRL1_DEEMPH_G2_MASK, 0x05);
+	val &= ~TXCTRL1_DEEMPH_G1_MASK;
+	val |= FIELD_PREP(TXCTRL1_DEEMPH_G1_MASK, 0x05);
+
+	val = readl(priv->base + RXCTRL);
+	val &= ~RXCTRL_LOS_LVL_MASK;
+	val |= FIELD_PREP(RXCTRL_LOS_LVL_MASK, 0x9);
+	val &= ~RXCTRL_LOS_BIAS_MASK;
+	val |= FIELD_PREP(RXCTRL_LOS_BIAS_MASK, 0x2);
+	val &= ~RXCTRL_RX_EQ_MASK;
+	val |= FIELD_PREP(RXCTRL_RX_EQ_MASK, 0x1);
+
+	/* dummy read 25 times to make a wait time for the phy to stabilize */
+	for (i = 0; i < 25; i++)
+		readl(priv->base + CKCTRL);
+
+	return 0;
+}
+
+static int uniphier_ahciphy_init(struct phy *phy)
+{
+	struct uniphier_ahciphy_priv *priv = phy_get_drvdata(phy);
+	int ret;
+
+	ret = clk_prepare_enable(priv->clk_parent_gio);
+	if (ret)
+		return ret;
+
+	ret = clk_prepare_enable(priv->clk_parent);
+	if (ret)
+		goto out_clk_gio_disable;
+
+	ret = reset_control_deassert(priv->rst_parent_gio);
+	if (ret)
+		goto out_clk_disable;
+
+	ret = reset_control_deassert(priv->rst_parent);
+	if (ret)
+		goto out_rst_gio_assert;
+
+	if (priv->data->init) {
+		ret = priv->data->init(priv);
+		if (ret)
+			goto out_rst_assert;
+	}
+
+	return 0;
+
+out_rst_assert:
+	reset_control_assert(priv->rst_parent);
+out_rst_gio_assert:
+	reset_control_assert(priv->rst_parent_gio);
+out_clk_disable:
+	clk_disable_unprepare(priv->clk_parent);
+out_clk_gio_disable:
+	clk_disable_unprepare(priv->clk_parent_gio);
+
+	return ret;
+}
+
+static int uniphier_ahciphy_exit(struct phy *phy)
+{
+	struct uniphier_ahciphy_priv *priv = phy_get_drvdata(phy);
+
+	reset_control_assert(priv->rst_parent);
+	reset_control_assert(priv->rst_parent_gio);
+	clk_disable_unprepare(priv->clk_parent);
+	clk_disable_unprepare(priv->clk_parent_gio);
+
+	return 0;
+}
+
+static int uniphier_ahciphy_power_on(struct phy *phy)
+{
+	struct uniphier_ahciphy_priv *priv = phy_get_drvdata(phy);
+	int ret = 0;
+
+	ret = clk_prepare_enable(priv->clk);
+	if (ret)
+		return ret;
+
+	ret = reset_control_deassert(priv->rst);
+	if (ret)
+		goto out_clk_disable;
+
+	if (priv->data->power_on) {
+		ret = priv->data->power_on(priv);
+		if (ret)
+			goto out_reset_assert;
+	}
+
+	return 0;
+
+out_reset_assert:
+	reset_control_assert(priv->rst);
+out_clk_disable:
+	clk_disable_unprepare(priv->clk);
+
+	return ret;
+}
+
+static int uniphier_ahciphy_power_off(struct phy *phy)
+{
+	struct uniphier_ahciphy_priv *priv = phy_get_drvdata(phy);
+	int ret = 0;
+
+	if (priv->data->power_off)
+		ret = priv->data->power_off(priv);
+
+	reset_control_assert(priv->rst);
+	clk_disable_unprepare(priv->clk);
+
+	return ret;
+}
+
+static const struct phy_ops uniphier_ahciphy_ops = {
+	.init  = uniphier_ahciphy_init,
+	.exit  = uniphier_ahciphy_exit,
+	.power_on  = uniphier_ahciphy_power_on,
+	.power_off = uniphier_ahciphy_power_off,
+	.owner = THIS_MODULE,
+};
+
+static int uniphier_ahciphy_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct uniphier_ahciphy_priv *priv;
+	struct phy *phy;
+	struct phy_provider *phy_provider;
+
+	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	priv->dev = dev;
+	priv->data = of_device_get_match_data(dev);
+	if (WARN_ON(!priv->data))
+		return -EINVAL;
+
+	priv->base = devm_platform_ioremap_resource(pdev, 0);
+	if (IS_ERR(priv->base))
+		return PTR_ERR(priv->base);
+
+	priv->clk_parent = devm_clk_get(dev, "link");
+	if (IS_ERR(priv->clk_parent))
+		return PTR_ERR(priv->clk_parent);
+
+	if (priv->data->is_phy_clk) {
+		priv->clk = devm_clk_get(dev, "phy");
+		if (IS_ERR(priv->clk))
+			return PTR_ERR(priv->clk);
+	}
+
+	priv->rst_parent = devm_reset_control_get_shared(dev, "link");
+	if (IS_ERR(priv->rst_parent))
+		return PTR_ERR(priv->rst_parent);
+
+	priv->rst = devm_reset_control_get_shared(dev, "phy");
+	if (IS_ERR(priv->rst))
+		return PTR_ERR(priv->rst);
+
+	if (priv->data->is_legacy) {
+		priv->clk_parent_gio = devm_clk_get(dev, "gio");
+		if (IS_ERR(priv->clk_parent_gio))
+			return PTR_ERR(priv->clk_parent_gio);
+		priv->rst_parent_gio =
+			devm_reset_control_get_shared(dev, "gio");
+		if (IS_ERR(priv->rst_parent_gio))
+			return PTR_ERR(priv->rst_parent_gio);
+
+		priv->rst_pm = devm_reset_control_get_shared(dev, "pm");
+		if (IS_ERR(priv->rst_pm))
+			return PTR_ERR(priv->rst_pm);
+
+		priv->rst_tx = devm_reset_control_get_shared(dev, "tx");
+		if (IS_ERR(priv->rst_tx))
+			return PTR_ERR(priv->rst_tx);
+
+		priv->rst_rx = devm_reset_control_get_shared(dev, "rx");
+		if (IS_ERR(priv->rst_rx))
+			return PTR_ERR(priv->rst_rx);
+	}
+
+	phy = devm_phy_create(dev, dev->of_node, &uniphier_ahciphy_ops);
+	if (IS_ERR(phy)) {
+		dev_err(dev, "failed to create phy\n");
+		return PTR_ERR(phy);
+	}
+
+	phy_set_drvdata(phy, priv);
+	phy_provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate);
+	if (IS_ERR(phy_provider))
+		return PTR_ERR(phy_provider);
+
+	return 0;
+}
+
+static const struct uniphier_ahciphy_soc_data uniphier_pro4_data = {
+	.init = uniphier_ahciphy_pro4_init,
+	.power_on  = uniphier_ahciphy_pro4_power_on,
+	.power_off = uniphier_ahciphy_pro4_power_off,
+	.is_legacy = true,
+	.is_phy_clk = false,
+};
+
+static const struct uniphier_ahciphy_soc_data uniphier_pxs2_data = {
+	.power_on  = uniphier_ahciphy_pxs2_power_on,
+	.power_off = uniphier_ahciphy_pxs2_power_off,
+	.is_legacy = false,
+	.is_ready_high = false,
+	.is_phy_clk = false,
+};
+
+static const struct uniphier_ahciphy_soc_data uniphier_pxs3_data = {
+	.init      = uniphier_ahciphy_pxs3_init,
+	.power_on  = uniphier_ahciphy_pxs2_power_on,
+	.power_off = uniphier_ahciphy_pxs2_power_off,
+	.is_legacy = false,
+	.is_ready_high = true,
+	.is_phy_clk = true,
+};
+
+static const struct of_device_id uniphier_ahciphy_match[] = {
+	{
+		.compatible = "socionext,uniphier-pro4-ahci-phy",
+		.data = &uniphier_pro4_data,
+	},
+	{
+		.compatible = "socionext,uniphier-pxs2-ahci-phy",
+		.data = &uniphier_pxs2_data,
+	},
+	{
+		.compatible = "socionext,uniphier-pxs3-ahci-phy",
+		.data = &uniphier_pxs3_data,
+	},
+	{ /* Sentinel */ },
+};
+MODULE_DEVICE_TABLE(of, uniphier_ahciphy_match);
+
+static struct platform_driver uniphier_ahciphy_driver = {
+	.probe = uniphier_ahciphy_probe,
+	.driver = {
+		.name = "uniphier-ahci-phy",
+		.of_match_table = uniphier_ahciphy_match,
+	},
+};
+module_platform_driver(uniphier_ahciphy_driver);
+
+MODULE_AUTHOR("Kunihiko Hayashi <hayashi.kunihiko@socionext.com>");
+MODULE_DESCRIPTION("UniPhier PHY driver for AHCI controller");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/phy/socionext/phy-uniphier-pcie.c b/drivers/phy/socionext/phy-uniphier-pcie.c
new file mode 100644
index 000000000..c19173492
--- /dev/null
+++ b/drivers/phy/socionext/phy-uniphier-pcie.c
@@ -0,0 +1,349 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * phy-uniphier-pcie.c - PHY driver for UniPhier PCIe controller
+ * Copyright 2018, Socionext Inc.
+ * Author: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
+ */
+
+#include <linux/bitops.h>
+#include <linux/bitfield.h>
+#include <linux/clk.h>
+#include <linux/iopoll.h>
+#include <linux/mfd/syscon.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/phy/phy.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+#include <linux/reset.h>
+#include <linux/resource.h>
+
+/* PHY */
+#define PCL_PHY_CLKCTRL		0x0000
+#define PORT_SEL_MASK		GENMASK(11, 9)
+#define PORT_SEL_1		FIELD_PREP(PORT_SEL_MASK, 1)
+
+#define PCL_PHY_TEST_I		0x2000
+#define TESTI_DAT_MASK		GENMASK(13, 6)
+#define TESTI_ADR_MASK		GENMASK(5, 1)
+#define TESTI_WR_EN		BIT(0)
+#define TESTIO_PHY_SHIFT	16
+
+#define PCL_PHY_TEST_O		0x2004
+#define TESTO_DAT_MASK		GENMASK(7, 0)
+
+#define PCL_PHY_RESET		0x200c
+#define PCL_PHY_RESET_N_MNMODE	BIT(8)	/* =1:manual */
+#define PCL_PHY_RESET_N		BIT(0)	/* =1:deasssert */
+
+/* SG */
+#define SG_USBPCIESEL		0x590
+#define SG_USBPCIESEL_PCIE	BIT(0)
+
+/* SC */
+#define SC_US3SRCSEL		0x2244
+#define SC_US3SRCSEL_2LANE	GENMASK(9, 8)
+
+#define PCL_PHY_R00		0
+#define   RX_EQ_ADJ_EN		BIT(3)		/* enable for EQ adjustment */
+#define PCL_PHY_R06		6
+#define   RX_EQ_ADJ		GENMASK(5, 0)	/* EQ adjustment value */
+#define   RX_EQ_ADJ_VAL		0
+#define PCL_PHY_R26		26
+#define   VCO_CTRL		GENMASK(7, 4)	/* Tx VCO adjustment value */
+#define   VCO_CTRL_INIT_VAL	5
+#define PCL_PHY_R28		28
+#define   VCOPLL_CLMP		GENMASK(3, 2)	/* Tx VCOPLL clamp mode */
+#define   VCOPLL_CLMP_VAL	0
+
+struct uniphier_pciephy_priv {
+	void __iomem *base;
+	struct device *dev;
+	struct clk *clk, *clk_gio;
+	struct reset_control *rst, *rst_gio;
+	const struct uniphier_pciephy_soc_data *data;
+};
+
+struct uniphier_pciephy_soc_data {
+	bool is_legacy;
+	bool is_dual_phy;
+	void (*set_phymode)(struct regmap *regmap);
+};
+
+static void uniphier_pciephy_testio_write(struct uniphier_pciephy_priv *priv,
+					  int id, u32 data)
+{
+	if (id)
+		data <<= TESTIO_PHY_SHIFT;
+
+	/* need to read TESTO twice after accessing TESTI */
+	writel(data, priv->base + PCL_PHY_TEST_I);
+	readl(priv->base + PCL_PHY_TEST_O);
+	readl(priv->base + PCL_PHY_TEST_O);
+}
+
+static u32 uniphier_pciephy_testio_read(struct uniphier_pciephy_priv *priv, int id)
+{
+	u32 val = readl(priv->base + PCL_PHY_TEST_O);
+
+	if (id)
+		val >>= TESTIO_PHY_SHIFT;
+
+	return val & TESTO_DAT_MASK;
+}
+
+static void uniphier_pciephy_set_param(struct uniphier_pciephy_priv *priv,
+				       int id, u32 reg, u32 mask, u32 param)
+{
+	u32 val;
+
+	/* read previous data */
+	val  = FIELD_PREP(TESTI_DAT_MASK, 1);
+	val |= FIELD_PREP(TESTI_ADR_MASK, reg);
+	uniphier_pciephy_testio_write(priv, id, val);
+	val = uniphier_pciephy_testio_read(priv, id);
+
+	/* update value */
+	val &= ~mask;
+	val |= mask & param;
+	val = FIELD_PREP(TESTI_DAT_MASK, val);
+	val |= FIELD_PREP(TESTI_ADR_MASK, reg);
+	uniphier_pciephy_testio_write(priv, id, val);
+	uniphier_pciephy_testio_write(priv, id, val | TESTI_WR_EN);
+	uniphier_pciephy_testio_write(priv, id, val);
+
+	/* read current data as dummy */
+	val  = FIELD_PREP(TESTI_DAT_MASK, 1);
+	val |= FIELD_PREP(TESTI_ADR_MASK, reg);
+	uniphier_pciephy_testio_write(priv, id, val);
+	uniphier_pciephy_testio_read(priv, id);
+}
+
+static void uniphier_pciephy_assert(struct uniphier_pciephy_priv *priv)
+{
+	u32 val;
+
+	val = readl(priv->base + PCL_PHY_RESET);
+	val &= ~PCL_PHY_RESET_N;
+	val |= PCL_PHY_RESET_N_MNMODE;
+	writel(val, priv->base + PCL_PHY_RESET);
+}
+
+static void uniphier_pciephy_deassert(struct uniphier_pciephy_priv *priv)
+{
+	u32 val;
+
+	val = readl(priv->base + PCL_PHY_RESET);
+	val |= PCL_PHY_RESET_N_MNMODE | PCL_PHY_RESET_N;
+	writel(val, priv->base + PCL_PHY_RESET);
+}
+
+static int uniphier_pciephy_init(struct phy *phy)
+{
+	struct uniphier_pciephy_priv *priv = phy_get_drvdata(phy);
+	u32 val;
+	int ret, id;
+
+	ret = clk_prepare_enable(priv->clk);
+	if (ret)
+		return ret;
+
+	ret = clk_prepare_enable(priv->clk_gio);
+	if (ret)
+		goto out_clk_disable;
+
+	ret = reset_control_deassert(priv->rst);
+	if (ret)
+		goto out_clk_gio_disable;
+
+	ret = reset_control_deassert(priv->rst_gio);
+	if (ret)
+		goto out_rst_assert;
+
+	/* support only 1 port */
+	val = readl(priv->base + PCL_PHY_CLKCTRL);
+	val &= ~PORT_SEL_MASK;
+	val |= PORT_SEL_1;
+	writel(val, priv->base + PCL_PHY_CLKCTRL);
+
+	/* legacy controller doesn't have phy_reset and parameters */
+	if (priv->data->is_legacy)
+		return 0;
+
+	for (id = 0; id < (priv->data->is_dual_phy ? 2 : 1); id++) {
+		uniphier_pciephy_set_param(priv, id, PCL_PHY_R00,
+				   RX_EQ_ADJ_EN, RX_EQ_ADJ_EN);
+		uniphier_pciephy_set_param(priv, id, PCL_PHY_R06, RX_EQ_ADJ,
+				   FIELD_PREP(RX_EQ_ADJ, RX_EQ_ADJ_VAL));
+		uniphier_pciephy_set_param(priv, id, PCL_PHY_R26, VCO_CTRL,
+				   FIELD_PREP(VCO_CTRL, VCO_CTRL_INIT_VAL));
+		uniphier_pciephy_set_param(priv, id, PCL_PHY_R28, VCOPLL_CLMP,
+				   FIELD_PREP(VCOPLL_CLMP, VCOPLL_CLMP_VAL));
+	}
+	usleep_range(1, 10);
+
+	uniphier_pciephy_deassert(priv);
+	usleep_range(1, 10);
+
+	return 0;
+
+out_rst_assert:
+	reset_control_assert(priv->rst);
+out_clk_gio_disable:
+	clk_disable_unprepare(priv->clk_gio);
+out_clk_disable:
+	clk_disable_unprepare(priv->clk);
+
+	return ret;
+}
+
+static int uniphier_pciephy_exit(struct phy *phy)
+{
+	struct uniphier_pciephy_priv *priv = phy_get_drvdata(phy);
+
+	if (!priv->data->is_legacy)
+		uniphier_pciephy_assert(priv);
+	reset_control_assert(priv->rst_gio);
+	reset_control_assert(priv->rst);
+	clk_disable_unprepare(priv->clk_gio);
+	clk_disable_unprepare(priv->clk);
+
+	return 0;
+}
+
+static const struct phy_ops uniphier_pciephy_ops = {
+	.init  = uniphier_pciephy_init,
+	.exit  = uniphier_pciephy_exit,
+	.owner = THIS_MODULE,
+};
+
+static int uniphier_pciephy_probe(struct platform_device *pdev)
+{
+	struct uniphier_pciephy_priv *priv;
+	struct phy_provider *phy_provider;
+	struct device *dev = &pdev->dev;
+	struct regmap *regmap;
+	struct phy *phy;
+
+	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	priv->data = of_device_get_match_data(dev);
+	if (WARN_ON(!priv->data))
+		return -EINVAL;
+
+	priv->dev = dev;
+
+	priv->base = devm_platform_ioremap_resource(pdev, 0);
+	if (IS_ERR(priv->base))
+		return PTR_ERR(priv->base);
+
+	if (priv->data->is_legacy) {
+		priv->clk_gio = devm_clk_get(dev, "gio");
+		if (IS_ERR(priv->clk_gio))
+			return PTR_ERR(priv->clk_gio);
+
+		priv->rst_gio =
+			devm_reset_control_get_shared(dev, "gio");
+		if (IS_ERR(priv->rst_gio))
+			return PTR_ERR(priv->rst_gio);
+
+		priv->clk = devm_clk_get(dev, "link");
+		if (IS_ERR(priv->clk))
+			return PTR_ERR(priv->clk);
+
+		priv->rst = devm_reset_control_get_shared(dev, "link");
+		if (IS_ERR(priv->rst))
+			return PTR_ERR(priv->rst);
+	} else {
+		priv->clk = devm_clk_get(dev, NULL);
+		if (IS_ERR(priv->clk))
+			return PTR_ERR(priv->clk);
+
+		priv->rst = devm_reset_control_get_shared(dev, NULL);
+		if (IS_ERR(priv->rst))
+			return PTR_ERR(priv->rst);
+	}
+
+	phy = devm_phy_create(dev, dev->of_node, &uniphier_pciephy_ops);
+	if (IS_ERR(phy))
+		return PTR_ERR(phy);
+
+	regmap = syscon_regmap_lookup_by_phandle(dev->of_node,
+						 "socionext,syscon");
+	if (!IS_ERR(regmap) && priv->data->set_phymode)
+		priv->data->set_phymode(regmap);
+
+	phy_set_drvdata(phy, priv);
+	phy_provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate);
+
+	return PTR_ERR_OR_ZERO(phy_provider);
+}
+
+static void uniphier_pciephy_ld20_setmode(struct regmap *regmap)
+{
+	regmap_update_bits(regmap, SG_USBPCIESEL,
+			   SG_USBPCIESEL_PCIE, SG_USBPCIESEL_PCIE);
+}
+
+static void uniphier_pciephy_nx1_setmode(struct regmap *regmap)
+{
+	regmap_update_bits(regmap, SC_US3SRCSEL,
+			   SC_US3SRCSEL_2LANE, SC_US3SRCSEL_2LANE);
+}
+
+static const struct uniphier_pciephy_soc_data uniphier_pro5_data = {
+	.is_legacy = true,
+};
+
+static const struct uniphier_pciephy_soc_data uniphier_ld20_data = {
+	.is_legacy = false,
+	.is_dual_phy = false,
+	.set_phymode = uniphier_pciephy_ld20_setmode,
+};
+
+static const struct uniphier_pciephy_soc_data uniphier_pxs3_data = {
+	.is_legacy = false,
+	.is_dual_phy = false,
+};
+
+static const struct uniphier_pciephy_soc_data uniphier_nx1_data = {
+	.is_legacy = false,
+	.is_dual_phy = true,
+	.set_phymode = uniphier_pciephy_nx1_setmode,
+};
+
+static const struct of_device_id uniphier_pciephy_match[] = {
+	{
+		.compatible = "socionext,uniphier-pro5-pcie-phy",
+		.data = &uniphier_pro5_data,
+	},
+	{
+		.compatible = "socionext,uniphier-ld20-pcie-phy",
+		.data = &uniphier_ld20_data,
+	},
+	{
+		.compatible = "socionext,uniphier-pxs3-pcie-phy",
+		.data = &uniphier_pxs3_data,
+	},
+	{
+		.compatible = "socionext,uniphier-nx1-pcie-phy",
+		.data = &uniphier_nx1_data,
+	},
+	{ /* sentinel */ },
+};
+MODULE_DEVICE_TABLE(of, uniphier_pciephy_match);
+
+static struct platform_driver uniphier_pciephy_driver = {
+	.probe = uniphier_pciephy_probe,
+	.driver = {
+		.name = "uniphier-pcie-phy",
+		.of_match_table = uniphier_pciephy_match,
+	},
+};
+module_platform_driver(uniphier_pciephy_driver);
+
+MODULE_AUTHOR("Kunihiko Hayashi <hayashi.kunihiko@socionext.com>");
+MODULE_DESCRIPTION("UniPhier PHY driver for PCIe controller");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/phy/socionext/phy-uniphier-usb2.c b/drivers/phy/socionext/phy-uniphier-usb2.c
new file mode 100644
index 000000000..c49d432e5
--- /dev/null
+++ b/drivers/phy/socionext/phy-uniphier-usb2.c
@@ -0,0 +1,236 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * phy-uniphier-usb2.c - PHY driver for UniPhier USB2 controller
+ * Copyright 2015-2018 Socionext Inc.
+ * Author:
+ *      Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
+ */
+
+#include <linux/mfd/syscon.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_platform.h>
+#include <linux/phy/phy.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+#include <linux/regulator/consumer.h>
+
+#define SG_USBPHY1CTRL		0x500
+#define SG_USBPHY1CTRL2		0x504
+#define SG_USBPHY2CTRL		0x508
+#define SG_USBPHY2CTRL2		0x50c	/* LD11 */
+#define SG_USBPHY12PLL		0x50c	/* Pro4 */
+#define SG_USBPHY3CTRL		0x510
+#define SG_USBPHY3CTRL2		0x514
+#define SG_USBPHY4CTRL		0x518	/* Pro4 */
+#define SG_USBPHY4CTRL2		0x51c	/* Pro4 */
+#define SG_USBPHY34PLL		0x51c	/* Pro4 */
+
+struct uniphier_u2phy_param {
+	u32 offset;
+	u32 value;
+};
+
+struct uniphier_u2phy_soc_data {
+	struct uniphier_u2phy_param config0;
+	struct uniphier_u2phy_param config1;
+};
+
+struct uniphier_u2phy_priv {
+	struct regmap *regmap;
+	struct phy *phy;
+	struct regulator *vbus;
+	const struct uniphier_u2phy_soc_data *data;
+	struct uniphier_u2phy_priv *next;
+};
+
+static int uniphier_u2phy_power_on(struct phy *phy)
+{
+	struct uniphier_u2phy_priv *priv = phy_get_drvdata(phy);
+	int ret = 0;
+
+	if (priv->vbus)
+		ret = regulator_enable(priv->vbus);
+
+	return ret;
+}
+
+static int uniphier_u2phy_power_off(struct phy *phy)
+{
+	struct uniphier_u2phy_priv *priv = phy_get_drvdata(phy);
+
+	if (priv->vbus)
+		regulator_disable(priv->vbus);
+
+	return 0;
+}
+
+static int uniphier_u2phy_init(struct phy *phy)
+{
+	struct uniphier_u2phy_priv *priv = phy_get_drvdata(phy);
+
+	if (!priv->data)
+		return 0;
+
+	regmap_write(priv->regmap, priv->data->config0.offset,
+		     priv->data->config0.value);
+	regmap_write(priv->regmap, priv->data->config1.offset,
+		     priv->data->config1.value);
+
+	return 0;
+}
+
+static struct phy *uniphier_u2phy_xlate(struct device *dev,
+					const struct of_phandle_args *args)
+{
+	struct uniphier_u2phy_priv *priv = dev_get_drvdata(dev);
+
+	while (priv && args->np != priv->phy->dev.of_node)
+		priv = priv->next;
+
+	if (!priv) {
+		dev_err(dev, "Failed to find appropriate phy\n");
+		return ERR_PTR(-EINVAL);
+	}
+
+	return priv->phy;
+}
+
+static const struct phy_ops uniphier_u2phy_ops = {
+	.init      = uniphier_u2phy_init,
+	.power_on  = uniphier_u2phy_power_on,
+	.power_off = uniphier_u2phy_power_off,
+	.owner = THIS_MODULE,
+};
+
+static int uniphier_u2phy_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct device_node *parent;
+	struct uniphier_u2phy_priv *priv = NULL, *next = NULL;
+	struct phy_provider *phy_provider;
+	struct regmap *regmap;
+	const struct uniphier_u2phy_soc_data *data;
+	int ret, data_idx, ndatas;
+
+	data = of_device_get_match_data(dev);
+	if (WARN_ON(!data))
+		return -EINVAL;
+
+	/* get number of data */
+	for (ndatas = 0; data[ndatas].config0.offset; ndatas++)
+		;
+
+	parent = of_get_parent(dev->of_node);
+	regmap = syscon_node_to_regmap(parent);
+	of_node_put(parent);
+	if (IS_ERR(regmap)) {
+		dev_err(dev, "Failed to get regmap\n");
+		return PTR_ERR(regmap);
+	}
+
+	for_each_child_of_node_scoped(dev->of_node, child) {
+		priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+		if (!priv)
+			return -ENOMEM;
+
+		priv->regmap = regmap;
+
+		priv->vbus = devm_regulator_get_optional(dev, "vbus");
+		if (IS_ERR(priv->vbus)) {
+			if (PTR_ERR(priv->vbus) == -EPROBE_DEFER)
+				return PTR_ERR(priv->vbus);
+
+			priv->vbus = NULL;
+		}
+
+		priv->phy = devm_phy_create(dev, child, &uniphier_u2phy_ops);
+		if (IS_ERR(priv->phy)) {
+			dev_err(dev, "Failed to create phy\n");
+			return PTR_ERR(priv->phy);
+		}
+
+		ret = of_property_read_u32(child, "reg", &data_idx);
+		if (ret) {
+			dev_err(dev, "Failed to get reg property\n");
+			return ret;
+		}
+
+		if (data_idx < ndatas)
+			priv->data = &data[data_idx];
+		else
+			dev_warn(dev, "No phy configuration: %s\n",
+				 child->full_name);
+
+		phy_set_drvdata(priv->phy, priv);
+		priv->next = next;
+		next = priv;
+	}
+
+	dev_set_drvdata(dev, priv);
+	phy_provider = devm_of_phy_provider_register(dev,
+						     uniphier_u2phy_xlate);
+	return PTR_ERR_OR_ZERO(phy_provider);
+}
+
+static const struct uniphier_u2phy_soc_data uniphier_pro4_data[] = {
+	{
+		.config0 = { SG_USBPHY1CTRL, 0x05142400 },
+		.config1 = { SG_USBPHY12PLL, 0x00010010 },
+	},
+	{
+		.config0 = { SG_USBPHY2CTRL, 0x05142400 },
+		.config1 = { SG_USBPHY12PLL, 0x00010010 },
+	},
+	{
+		.config0 = { SG_USBPHY3CTRL, 0x05142400 },
+		.config1 = { SG_USBPHY34PLL, 0x00010010 },
+	},
+	{
+		.config0 = { SG_USBPHY4CTRL, 0x05142400 },
+		.config1 = { SG_USBPHY34PLL, 0x00010010 },
+	},
+	{ /* sentinel */ }
+};
+
+static const struct uniphier_u2phy_soc_data uniphier_ld11_data[] = {
+	{
+		.config0 = { SG_USBPHY1CTRL,  0x82280000 },
+		.config1 = { SG_USBPHY1CTRL2, 0x00000106 },
+	},
+	{
+		.config0 = { SG_USBPHY2CTRL,  0x82280000 },
+		.config1 = { SG_USBPHY2CTRL2, 0x00000106 },
+	},
+	{
+		.config0 = { SG_USBPHY3CTRL,  0x82280000 },
+		.config1 = { SG_USBPHY3CTRL2, 0x00000106 },
+	},
+	{ /* sentinel */ }
+};
+
+static const struct of_device_id uniphier_u2phy_match[] = {
+	{
+		.compatible = "socionext,uniphier-pro4-usb2-phy",
+		.data = &uniphier_pro4_data,
+	},
+	{
+		.compatible = "socionext,uniphier-ld11-usb2-phy",
+		.data = &uniphier_ld11_data,
+	},
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, uniphier_u2phy_match);
+
+static struct platform_driver uniphier_u2phy_driver = {
+	.probe = uniphier_u2phy_probe,
+	.driver = {
+		.name = "uniphier-usb2-phy",
+		.of_match_table = uniphier_u2phy_match,
+	},
+};
+module_platform_driver(uniphier_u2phy_driver);
+
+MODULE_AUTHOR("Kunihiko Hayashi <hayashi.kunihiko@socionext.com>");
+MODULE_DESCRIPTION("UniPhier PHY driver for USB2 controller");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/phy/socionext/phy-uniphier-usb3hs.c b/drivers/phy/socionext/phy-uniphier-usb3hs.c
new file mode 100644
index 000000000..8c8673df0
--- /dev/null
+++ b/drivers/phy/socionext/phy-uniphier-usb3hs.c
@@ -0,0 +1,470 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * phy-uniphier-usb3hs.c - HS-PHY driver for Socionext UniPhier USB3 controller
+ * Copyright 2015-2018 Socionext Inc.
+ * Author:
+ *      Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
+ * Contributors:
+ *      Motoya Tanigawa <tanigawa.motoya@socionext.com>
+ *      Masami Hiramatsu <masami.hiramatsu@linaro.org>
+ */
+
+#include <linux/bitfield.h>
+#include <linux/bitops.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/nvmem-consumer.h>
+#include <linux/of.h>
+#include <linux/of_platform.h>
+#include <linux/phy/phy.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/consumer.h>
+#include <linux/reset.h>
+#include <linux/slab.h>
+
+#define HSPHY_CFG0		0x0
+#define HSPHY_CFG0_HS_I_MASK	GENMASK(31, 28)
+#define HSPHY_CFG0_HSDISC_MASK	GENMASK(27, 26)
+#define HSPHY_CFG0_SWING_MASK	GENMASK(17, 16)
+#define HSPHY_CFG0_SEL_T_MASK	GENMASK(15, 12)
+#define HSPHY_CFG0_RTERM_MASK	GENMASK(7, 6)
+#define HSPHY_CFG0_TRIMMASK	(HSPHY_CFG0_HS_I_MASK \
+				 | HSPHY_CFG0_SEL_T_MASK \
+				 | HSPHY_CFG0_RTERM_MASK)
+
+#define HSPHY_CFG1		0x4
+#define HSPHY_CFG1_DAT_EN	BIT(29)
+#define HSPHY_CFG1_ADR_EN	BIT(28)
+#define HSPHY_CFG1_ADR_MASK	GENMASK(27, 16)
+#define HSPHY_CFG1_DAT_MASK	GENMASK(23, 16)
+
+#define PHY_F(regno, msb, lsb) { (regno), (msb), (lsb) }
+
+#define RX_CHK_SYNC	PHY_F(0, 5, 5)	/* RX sync mode */
+#define RX_SYNC_SEL	PHY_F(1, 1, 0)	/* RX sync length */
+#define LS_SLEW		PHY_F(10, 6, 6)	/* LS mode slew rate */
+#define FS_LS_DRV	PHY_F(10, 5, 5)	/* FS/LS slew rate */
+
+#define MAX_PHY_PARAMS	4
+
+struct uniphier_u3hsphy_param {
+	struct {
+		int reg_no;
+		int msb;
+		int lsb;
+	} field;
+	u8 value;
+};
+
+struct uniphier_u3hsphy_trim_param {
+	unsigned int rterm;
+	unsigned int sel_t;
+	unsigned int hs_i;
+};
+
+#define trim_param_is_valid(p)	((p)->rterm || (p)->sel_t || (p)->hs_i)
+
+struct uniphier_u3hsphy_priv {
+	struct device *dev;
+	void __iomem *base;
+	struct clk *clk, *clk_parent, *clk_ext, *clk_parent_gio;
+	struct reset_control *rst, *rst_parent, *rst_parent_gio;
+	struct regulator *vbus;
+	const struct uniphier_u3hsphy_soc_data *data;
+};
+
+struct uniphier_u3hsphy_soc_data {
+	bool is_legacy;
+	int nparams;
+	const struct uniphier_u3hsphy_param param[MAX_PHY_PARAMS];
+	u32 config0;
+	u32 config1;
+	void (*trim_func)(struct uniphier_u3hsphy_priv *priv, u32 *pconfig,
+			  struct uniphier_u3hsphy_trim_param *pt);
+};
+
+static void uniphier_u3hsphy_trim_ld20(struct uniphier_u3hsphy_priv *priv,
+				       u32 *pconfig,
+				       struct uniphier_u3hsphy_trim_param *pt)
+{
+	*pconfig &= ~HSPHY_CFG0_RTERM_MASK;
+	*pconfig |= FIELD_PREP(HSPHY_CFG0_RTERM_MASK, pt->rterm);
+
+	*pconfig &= ~HSPHY_CFG0_SEL_T_MASK;
+	*pconfig |= FIELD_PREP(HSPHY_CFG0_SEL_T_MASK, pt->sel_t);
+
+	*pconfig &= ~HSPHY_CFG0_HS_I_MASK;
+	*pconfig |= FIELD_PREP(HSPHY_CFG0_HS_I_MASK,  pt->hs_i);
+}
+
+static int uniphier_u3hsphy_get_nvparam(struct uniphier_u3hsphy_priv *priv,
+					const char *name, unsigned int *val)
+{
+	struct nvmem_cell *cell;
+	u8 *buf;
+
+	cell = devm_nvmem_cell_get(priv->dev, name);
+	if (IS_ERR(cell))
+		return PTR_ERR(cell);
+
+	buf = nvmem_cell_read(cell, NULL);
+	if (IS_ERR(buf))
+		return PTR_ERR(buf);
+
+	*val = *buf;
+
+	kfree(buf);
+
+	return 0;
+}
+
+static int uniphier_u3hsphy_get_nvparams(struct uniphier_u3hsphy_priv *priv,
+					 struct uniphier_u3hsphy_trim_param *pt)
+{
+	int ret;
+
+	ret = uniphier_u3hsphy_get_nvparam(priv, "rterm", &pt->rterm);
+	if (ret)
+		return ret;
+
+	ret = uniphier_u3hsphy_get_nvparam(priv, "sel_t", &pt->sel_t);
+	if (ret)
+		return ret;
+
+	ret = uniphier_u3hsphy_get_nvparam(priv, "hs_i", &pt->hs_i);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+static int uniphier_u3hsphy_update_config(struct uniphier_u3hsphy_priv *priv,
+					  u32 *pconfig)
+{
+	struct uniphier_u3hsphy_trim_param trim;
+	int ret, trimmed = 0;
+
+	if (priv->data->trim_func) {
+		ret = uniphier_u3hsphy_get_nvparams(priv, &trim);
+		if (ret == -EPROBE_DEFER)
+			return ret;
+
+		/*
+		 * call trim_func only when trimming parameters that aren't
+		 * all-zero can be acquired. All-zero parameters mean nothing
+		 * has been written to nvmem.
+		 */
+		if (!ret && trim_param_is_valid(&trim)) {
+			priv->data->trim_func(priv, pconfig, &trim);
+			trimmed = 1;
+		} else {
+			dev_dbg(priv->dev, "can't get parameter from nvmem\n");
+		}
+	}
+
+	/* use default parameters without trimming values */
+	if (!trimmed) {
+		*pconfig &= ~HSPHY_CFG0_HSDISC_MASK;
+		*pconfig |= FIELD_PREP(HSPHY_CFG0_HSDISC_MASK, 3);
+	}
+
+	return 0;
+}
+
+static void uniphier_u3hsphy_set_param(struct uniphier_u3hsphy_priv *priv,
+				       const struct uniphier_u3hsphy_param *p)
+{
+	u32 val;
+	u32 field_mask = GENMASK(p->field.msb, p->field.lsb);
+	u8 data;
+
+	val = readl(priv->base + HSPHY_CFG1);
+	val &= ~HSPHY_CFG1_ADR_MASK;
+	val |= FIELD_PREP(HSPHY_CFG1_ADR_MASK, p->field.reg_no)
+		| HSPHY_CFG1_ADR_EN;
+	writel(val, priv->base + HSPHY_CFG1);
+
+	val = readl(priv->base + HSPHY_CFG1);
+	val &= ~HSPHY_CFG1_ADR_EN;
+	writel(val, priv->base + HSPHY_CFG1);
+
+	val = readl(priv->base + HSPHY_CFG1);
+	val &= ~FIELD_PREP(HSPHY_CFG1_DAT_MASK, field_mask);
+	data = field_mask & (p->value << p->field.lsb);
+	val |=  FIELD_PREP(HSPHY_CFG1_DAT_MASK, data) | HSPHY_CFG1_DAT_EN;
+	writel(val, priv->base + HSPHY_CFG1);
+
+	val = readl(priv->base + HSPHY_CFG1);
+	val &= ~HSPHY_CFG1_DAT_EN;
+	writel(val, priv->base + HSPHY_CFG1);
+}
+
+static int uniphier_u3hsphy_power_on(struct phy *phy)
+{
+	struct uniphier_u3hsphy_priv *priv = phy_get_drvdata(phy);
+	int ret;
+
+	ret = clk_prepare_enable(priv->clk_ext);
+	if (ret)
+		return ret;
+
+	ret = clk_prepare_enable(priv->clk);
+	if (ret)
+		goto out_clk_ext_disable;
+
+	ret = reset_control_deassert(priv->rst);
+	if (ret)
+		goto out_clk_disable;
+
+	if (priv->vbus) {
+		ret = regulator_enable(priv->vbus);
+		if (ret)
+			goto out_rst_assert;
+	}
+
+	return 0;
+
+out_rst_assert:
+	reset_control_assert(priv->rst);
+out_clk_disable:
+	clk_disable_unprepare(priv->clk);
+out_clk_ext_disable:
+	clk_disable_unprepare(priv->clk_ext);
+
+	return ret;
+}
+
+static int uniphier_u3hsphy_power_off(struct phy *phy)
+{
+	struct uniphier_u3hsphy_priv *priv = phy_get_drvdata(phy);
+
+	if (priv->vbus)
+		regulator_disable(priv->vbus);
+
+	reset_control_assert(priv->rst);
+	clk_disable_unprepare(priv->clk);
+	clk_disable_unprepare(priv->clk_ext);
+
+	return 0;
+}
+
+static int uniphier_u3hsphy_init(struct phy *phy)
+{
+	struct uniphier_u3hsphy_priv *priv = phy_get_drvdata(phy);
+	u32 config0, config1;
+	int i, ret;
+
+	ret = clk_prepare_enable(priv->clk_parent);
+	if (ret)
+		return ret;
+
+	ret = clk_prepare_enable(priv->clk_parent_gio);
+	if (ret)
+		goto out_clk_disable;
+
+	ret = reset_control_deassert(priv->rst_parent);
+	if (ret)
+		goto out_clk_gio_disable;
+
+	ret = reset_control_deassert(priv->rst_parent_gio);
+	if (ret)
+		goto out_rst_assert;
+
+	if ((priv->data->is_legacy)
+	    || (!priv->data->config0 && !priv->data->config1))
+		return 0;
+
+	config0 = priv->data->config0;
+	config1 = priv->data->config1;
+
+	ret = uniphier_u3hsphy_update_config(priv, &config0);
+	if (ret)
+		goto out_rst_assert;
+
+	writel(config0, priv->base + HSPHY_CFG0);
+	writel(config1, priv->base + HSPHY_CFG1);
+
+	for (i = 0; i < priv->data->nparams; i++)
+		uniphier_u3hsphy_set_param(priv, &priv->data->param[i]);
+
+	return 0;
+
+out_rst_assert:
+	reset_control_assert(priv->rst_parent);
+out_clk_gio_disable:
+	clk_disable_unprepare(priv->clk_parent_gio);
+out_clk_disable:
+	clk_disable_unprepare(priv->clk_parent);
+
+	return ret;
+}
+
+static int uniphier_u3hsphy_exit(struct phy *phy)
+{
+	struct uniphier_u3hsphy_priv *priv = phy_get_drvdata(phy);
+
+	reset_control_assert(priv->rst_parent_gio);
+	reset_control_assert(priv->rst_parent);
+	clk_disable_unprepare(priv->clk_parent_gio);
+	clk_disable_unprepare(priv->clk_parent);
+
+	return 0;
+}
+
+static const struct phy_ops uniphier_u3hsphy_ops = {
+	.init           = uniphier_u3hsphy_init,
+	.exit           = uniphier_u3hsphy_exit,
+	.power_on       = uniphier_u3hsphy_power_on,
+	.power_off      = uniphier_u3hsphy_power_off,
+	.owner          = THIS_MODULE,
+};
+
+static int uniphier_u3hsphy_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct uniphier_u3hsphy_priv *priv;
+	struct phy_provider *phy_provider;
+	struct phy *phy;
+
+	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	priv->dev = dev;
+	priv->data = of_device_get_match_data(dev);
+	if (WARN_ON(!priv->data ||
+		    priv->data->nparams > MAX_PHY_PARAMS))
+		return -EINVAL;
+
+	priv->base = devm_platform_ioremap_resource(pdev, 0);
+	if (IS_ERR(priv->base))
+		return PTR_ERR(priv->base);
+
+	if (!priv->data->is_legacy) {
+		priv->clk = devm_clk_get(dev, "phy");
+		if (IS_ERR(priv->clk))
+			return PTR_ERR(priv->clk);
+
+		priv->clk_ext = devm_clk_get_optional(dev, "phy-ext");
+		if (IS_ERR(priv->clk_ext))
+			return PTR_ERR(priv->clk_ext);
+
+		priv->rst = devm_reset_control_get_shared(dev, "phy");
+		if (IS_ERR(priv->rst))
+			return PTR_ERR(priv->rst);
+
+	} else {
+		priv->clk_parent_gio = devm_clk_get(dev, "gio");
+		if (IS_ERR(priv->clk_parent_gio))
+			return PTR_ERR(priv->clk_parent_gio);
+
+		priv->rst_parent_gio =
+			devm_reset_control_get_shared(dev, "gio");
+		if (IS_ERR(priv->rst_parent_gio))
+			return PTR_ERR(priv->rst_parent_gio);
+	}
+
+	priv->clk_parent = devm_clk_get(dev, "link");
+	if (IS_ERR(priv->clk_parent))
+		return PTR_ERR(priv->clk_parent);
+
+	priv->rst_parent = devm_reset_control_get_shared(dev, "link");
+	if (IS_ERR(priv->rst_parent))
+		return PTR_ERR(priv->rst_parent);
+
+	priv->vbus = devm_regulator_get_optional(dev, "vbus");
+	if (IS_ERR(priv->vbus)) {
+		if (PTR_ERR(priv->vbus) == -EPROBE_DEFER)
+			return PTR_ERR(priv->vbus);
+		priv->vbus = NULL;
+	}
+
+	phy = devm_phy_create(dev, dev->of_node, &uniphier_u3hsphy_ops);
+	if (IS_ERR(phy))
+		return PTR_ERR(phy);
+
+	phy_set_drvdata(phy, priv);
+	phy_provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate);
+
+	return PTR_ERR_OR_ZERO(phy_provider);
+}
+
+static const struct uniphier_u3hsphy_soc_data uniphier_pro5_data = {
+	.is_legacy = true,
+	.nparams = 0,
+};
+
+static const struct uniphier_u3hsphy_soc_data uniphier_pxs2_data = {
+	.is_legacy = false,
+	.nparams = 2,
+	.param = {
+		{ RX_CHK_SYNC, 1 },
+		{ RX_SYNC_SEL, 1 },
+	},
+};
+
+static const struct uniphier_u3hsphy_soc_data uniphier_ld20_data = {
+	.is_legacy = false,
+	.nparams = 4,
+	.param = {
+		{ RX_CHK_SYNC, 1 },
+		{ RX_SYNC_SEL, 1 },
+		{ LS_SLEW, 1 },
+		{ FS_LS_DRV, 1 },
+	},
+	.trim_func = uniphier_u3hsphy_trim_ld20,
+	.config0 = 0x92316680,
+	.config1 = 0x00000106,
+};
+
+static const struct uniphier_u3hsphy_soc_data uniphier_pxs3_data = {
+	.is_legacy = false,
+	.nparams = 2,
+	.param = {
+		{ RX_CHK_SYNC, 1 },
+		{ RX_SYNC_SEL, 1 },
+	},
+	.trim_func = uniphier_u3hsphy_trim_ld20,
+	.config0 = 0x92316680,
+	.config1 = 0x00000106,
+};
+
+static const struct of_device_id uniphier_u3hsphy_match[] = {
+	{
+		.compatible = "socionext,uniphier-pro5-usb3-hsphy",
+		.data = &uniphier_pro5_data,
+	},
+	{
+		.compatible = "socionext,uniphier-pxs2-usb3-hsphy",
+		.data = &uniphier_pxs2_data,
+	},
+	{
+		.compatible = "socionext,uniphier-ld20-usb3-hsphy",
+		.data = &uniphier_ld20_data,
+	},
+	{
+		.compatible = "socionext,uniphier-pxs3-usb3-hsphy",
+		.data = &uniphier_pxs3_data,
+	},
+	{
+		.compatible = "socionext,uniphier-nx1-usb3-hsphy",
+		.data = &uniphier_pxs3_data,
+	},
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, uniphier_u3hsphy_match);
+
+static struct platform_driver uniphier_u3hsphy_driver = {
+	.probe = uniphier_u3hsphy_probe,
+	.driver	= {
+		.name = "uniphier-usb3-hsphy",
+		.of_match_table	= uniphier_u3hsphy_match,
+	},
+};
+
+module_platform_driver(uniphier_u3hsphy_driver);
+
+MODULE_AUTHOR("Kunihiko Hayashi <hayashi.kunihiko@socionext.com>");
+MODULE_DESCRIPTION("UniPhier HS-PHY driver for USB3 controller");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/phy/socionext/phy-uniphier-usb3ss.c b/drivers/phy/socionext/phy-uniphier-usb3ss.c
new file mode 100644
index 000000000..f402ed873
--- /dev/null
+++ b/drivers/phy/socionext/phy-uniphier-usb3ss.c
@@ -0,0 +1,353 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * phy-uniphier-usb3ss.c - SS-PHY driver for Socionext UniPhier USB3 controller
+ * Copyright 2015-2018 Socionext Inc.
+ * Author:
+ *      Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
+ * Contributors:
+ *      Motoya Tanigawa <tanigawa.motoya@socionext.com>
+ *      Masami Hiramatsu <masami.hiramatsu@linaro.org>
+ */
+
+#include <linux/bitfield.h>
+#include <linux/bitops.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_platform.h>
+#include <linux/phy/phy.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/consumer.h>
+#include <linux/reset.h>
+
+#define SSPHY_TESTI		0x0
+#define TESTI_DAT_MASK		GENMASK(13, 6)
+#define TESTI_ADR_MASK		GENMASK(5, 1)
+#define TESTI_WR_EN		BIT(0)
+
+#define SSPHY_TESTO		0x4
+#define TESTO_DAT_MASK		GENMASK(7, 0)
+
+#define PHY_F(regno, msb, lsb) { (regno), (msb), (lsb) }
+
+#define CDR_CPD_TRIM	PHY_F(7, 3, 0)	/* RxPLL charge pump current */
+#define CDR_CPF_TRIM	PHY_F(8, 3, 0)	/* RxPLL charge pump current 2 */
+#define TX_PLL_TRIM	PHY_F(9, 3, 0)	/* TxPLL charge pump current */
+#define BGAP_TRIM	PHY_F(11, 3, 0)	/* Bandgap voltage */
+#define CDR_TRIM	PHY_F(13, 6, 5)	/* Clock Data Recovery setting */
+#define VCO_CTRL	PHY_F(26, 7, 4)	/* VCO control */
+#define VCOPLL_CTRL	PHY_F(27, 2, 0)	/* TxPLL VCO tuning */
+#define VCOPLL_CM	PHY_F(28, 1, 0)	/* TxPLL voltage */
+
+#define MAX_PHY_PARAMS	7
+
+struct uniphier_u3ssphy_param {
+	struct {
+		int reg_no;
+		int msb;
+		int lsb;
+	} field;
+	u8 value;
+};
+
+struct uniphier_u3ssphy_priv {
+	struct device *dev;
+	void __iomem *base;
+	struct clk *clk, *clk_ext, *clk_parent, *clk_parent_gio;
+	struct reset_control *rst, *rst_parent, *rst_parent_gio;
+	struct regulator *vbus;
+	const struct uniphier_u3ssphy_soc_data *data;
+};
+
+struct uniphier_u3ssphy_soc_data {
+	bool is_legacy;
+	int nparams;
+	const struct uniphier_u3ssphy_param param[MAX_PHY_PARAMS];
+};
+
+static void uniphier_u3ssphy_testio_write(struct uniphier_u3ssphy_priv *priv,
+					  u32 data)
+{
+	/* need to read TESTO twice after accessing TESTI */
+	writel(data, priv->base + SSPHY_TESTI);
+	readl(priv->base + SSPHY_TESTO);
+	readl(priv->base + SSPHY_TESTO);
+}
+
+static void uniphier_u3ssphy_set_param(struct uniphier_u3ssphy_priv *priv,
+				       const struct uniphier_u3ssphy_param *p)
+{
+	u32 val;
+	u8 field_mask = GENMASK(p->field.msb, p->field.lsb);
+	u8 data;
+
+	/* read previous data */
+	val  = FIELD_PREP(TESTI_DAT_MASK, 1);
+	val |= FIELD_PREP(TESTI_ADR_MASK, p->field.reg_no);
+	uniphier_u3ssphy_testio_write(priv, val);
+	val = readl(priv->base + SSPHY_TESTO) & TESTO_DAT_MASK;
+
+	/* update value */
+	val &= ~field_mask;
+	data = field_mask & (p->value << p->field.lsb);
+	val  = FIELD_PREP(TESTI_DAT_MASK, data | val);
+	val |= FIELD_PREP(TESTI_ADR_MASK, p->field.reg_no);
+	uniphier_u3ssphy_testio_write(priv, val);
+	uniphier_u3ssphy_testio_write(priv, val | TESTI_WR_EN);
+	uniphier_u3ssphy_testio_write(priv, val);
+
+	/* read current data as dummy */
+	val  = FIELD_PREP(TESTI_DAT_MASK, 1);
+	val |= FIELD_PREP(TESTI_ADR_MASK, p->field.reg_no);
+	uniphier_u3ssphy_testio_write(priv, val);
+	readl(priv->base + SSPHY_TESTO);
+}
+
+static int uniphier_u3ssphy_power_on(struct phy *phy)
+{
+	struct uniphier_u3ssphy_priv *priv = phy_get_drvdata(phy);
+	int ret;
+
+	ret = clk_prepare_enable(priv->clk_ext);
+	if (ret)
+		return ret;
+
+	ret = clk_prepare_enable(priv->clk);
+	if (ret)
+		goto out_clk_ext_disable;
+
+	ret = reset_control_deassert(priv->rst);
+	if (ret)
+		goto out_clk_disable;
+
+	if (priv->vbus) {
+		ret = regulator_enable(priv->vbus);
+		if (ret)
+			goto out_rst_assert;
+	}
+
+	return 0;
+
+out_rst_assert:
+	reset_control_assert(priv->rst);
+out_clk_disable:
+	clk_disable_unprepare(priv->clk);
+out_clk_ext_disable:
+	clk_disable_unprepare(priv->clk_ext);
+
+	return ret;
+}
+
+static int uniphier_u3ssphy_power_off(struct phy *phy)
+{
+	struct uniphier_u3ssphy_priv *priv = phy_get_drvdata(phy);
+
+	if (priv->vbus)
+		regulator_disable(priv->vbus);
+
+	reset_control_assert(priv->rst);
+	clk_disable_unprepare(priv->clk);
+	clk_disable_unprepare(priv->clk_ext);
+
+	return 0;
+}
+
+static int uniphier_u3ssphy_init(struct phy *phy)
+{
+	struct uniphier_u3ssphy_priv *priv = phy_get_drvdata(phy);
+	int i, ret;
+
+	ret = clk_prepare_enable(priv->clk_parent);
+	if (ret)
+		return ret;
+
+	ret = clk_prepare_enable(priv->clk_parent_gio);
+	if (ret)
+		goto out_clk_disable;
+
+	ret = reset_control_deassert(priv->rst_parent);
+	if (ret)
+		goto out_clk_gio_disable;
+
+	ret = reset_control_deassert(priv->rst_parent_gio);
+	if (ret)
+		goto out_rst_assert;
+
+	if (priv->data->is_legacy)
+		return 0;
+
+	for (i = 0; i < priv->data->nparams; i++)
+		uniphier_u3ssphy_set_param(priv, &priv->data->param[i]);
+
+	return 0;
+
+out_rst_assert:
+	reset_control_assert(priv->rst_parent);
+out_clk_gio_disable:
+	clk_disable_unprepare(priv->clk_parent_gio);
+out_clk_disable:
+	clk_disable_unprepare(priv->clk_parent);
+
+	return ret;
+}
+
+static int uniphier_u3ssphy_exit(struct phy *phy)
+{
+	struct uniphier_u3ssphy_priv *priv = phy_get_drvdata(phy);
+
+	reset_control_assert(priv->rst_parent_gio);
+	reset_control_assert(priv->rst_parent);
+	clk_disable_unprepare(priv->clk_parent_gio);
+	clk_disable_unprepare(priv->clk_parent);
+
+	return 0;
+}
+
+static const struct phy_ops uniphier_u3ssphy_ops = {
+	.init           = uniphier_u3ssphy_init,
+	.exit           = uniphier_u3ssphy_exit,
+	.power_on       = uniphier_u3ssphy_power_on,
+	.power_off      = uniphier_u3ssphy_power_off,
+	.owner          = THIS_MODULE,
+};
+
+static int uniphier_u3ssphy_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct uniphier_u3ssphy_priv *priv;
+	struct phy_provider *phy_provider;
+	struct phy *phy;
+
+	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	priv->dev = dev;
+	priv->data = of_device_get_match_data(dev);
+	if (WARN_ON(!priv->data ||
+		    priv->data->nparams > MAX_PHY_PARAMS))
+		return -EINVAL;
+
+	priv->base = devm_platform_ioremap_resource(pdev, 0);
+	if (IS_ERR(priv->base))
+		return PTR_ERR(priv->base);
+
+	if (!priv->data->is_legacy) {
+		priv->clk = devm_clk_get(dev, "phy");
+		if (IS_ERR(priv->clk))
+			return PTR_ERR(priv->clk);
+
+		priv->clk_ext = devm_clk_get_optional(dev, "phy-ext");
+		if (IS_ERR(priv->clk_ext))
+			return PTR_ERR(priv->clk_ext);
+
+		priv->rst = devm_reset_control_get_shared(dev, "phy");
+		if (IS_ERR(priv->rst))
+			return PTR_ERR(priv->rst);
+	} else {
+		priv->clk_parent_gio = devm_clk_get(dev, "gio");
+		if (IS_ERR(priv->clk_parent_gio))
+			return PTR_ERR(priv->clk_parent_gio);
+
+		priv->rst_parent_gio =
+			devm_reset_control_get_shared(dev, "gio");
+		if (IS_ERR(priv->rst_parent_gio))
+			return PTR_ERR(priv->rst_parent_gio);
+	}
+
+	priv->clk_parent = devm_clk_get(dev, "link");
+	if (IS_ERR(priv->clk_parent))
+		return PTR_ERR(priv->clk_parent);
+
+	priv->rst_parent = devm_reset_control_get_shared(dev, "link");
+	if (IS_ERR(priv->rst_parent))
+		return PTR_ERR(priv->rst_parent);
+
+	priv->vbus = devm_regulator_get_optional(dev, "vbus");
+	if (IS_ERR(priv->vbus)) {
+		if (PTR_ERR(priv->vbus) == -EPROBE_DEFER)
+			return PTR_ERR(priv->vbus);
+		priv->vbus = NULL;
+	}
+
+	phy = devm_phy_create(dev, dev->of_node, &uniphier_u3ssphy_ops);
+	if (IS_ERR(phy))
+		return PTR_ERR(phy);
+
+	phy_set_drvdata(phy, priv);
+	phy_provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate);
+
+	return PTR_ERR_OR_ZERO(phy_provider);
+}
+
+static const struct uniphier_u3ssphy_soc_data uniphier_pro4_data = {
+	.is_legacy = true,
+};
+
+static const struct uniphier_u3ssphy_soc_data uniphier_pxs2_data = {
+	.is_legacy = false,
+	.nparams = 7,
+	.param = {
+		{ CDR_CPD_TRIM, 10 },
+		{ CDR_CPF_TRIM, 3 },
+		{ TX_PLL_TRIM, 5 },
+		{ BGAP_TRIM, 9 },
+		{ CDR_TRIM, 2 },
+		{ VCOPLL_CTRL, 7 },
+		{ VCOPLL_CM, 1 },
+	},
+};
+
+static const struct uniphier_u3ssphy_soc_data uniphier_ld20_data = {
+	.is_legacy = false,
+	.nparams = 3,
+	.param = {
+		{ CDR_CPD_TRIM, 6 },
+		{ CDR_TRIM, 2 },
+		{ VCO_CTRL, 5 },
+	},
+};
+
+static const struct of_device_id uniphier_u3ssphy_match[] = {
+	{
+		.compatible = "socionext,uniphier-pro4-usb3-ssphy",
+		.data = &uniphier_pro4_data,
+	},
+	{
+		.compatible = "socionext,uniphier-pro5-usb3-ssphy",
+		.data = &uniphier_pro4_data,
+	},
+	{
+		.compatible = "socionext,uniphier-pxs2-usb3-ssphy",
+		.data = &uniphier_pxs2_data,
+	},
+	{
+		.compatible = "socionext,uniphier-ld20-usb3-ssphy",
+		.data = &uniphier_ld20_data,
+	},
+	{
+		.compatible = "socionext,uniphier-pxs3-usb3-ssphy",
+		.data = &uniphier_ld20_data,
+	},
+	{
+		.compatible = "socionext,uniphier-nx1-usb3-ssphy",
+		.data = &uniphier_ld20_data,
+	},
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, uniphier_u3ssphy_match);
+
+static struct platform_driver uniphier_u3ssphy_driver = {
+	.probe = uniphier_u3ssphy_probe,
+	.driver	= {
+		.name = "uniphier-usb3-ssphy",
+		.of_match_table	= uniphier_u3ssphy_match,
+	},
+};
+
+module_platform_driver(uniphier_u3ssphy_driver);
+
+MODULE_AUTHOR("Kunihiko Hayashi <hayashi.kunihiko@socionext.com>");
+MODULE_DESCRIPTION("UniPhier SS-PHY driver for USB3 controller");
+MODULE_LICENSE("GPL v2");