Adding upstream version 4.19.249.upstream/4.19.249upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 661 insertions, 0 deletions

diff --git a/drivers/phy/marvell/phy-mvebu-cp110-comphy.c b/drivers/phy/marvell/phy-mvebu-cp110-comphy.c
new file mode 100644
index 000000000..86a5f7b94
--- /dev/null
+++ b/drivers/phy/marvell/phy-mvebu-cp110-comphy.c
@@ -0,0 +1,661 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2017 Marvell
+ *
+ * Antoine Tenart <antoine.tenart@free-electrons.com>
+ */
+
+#include <linux/io.h>
+#include <linux/iopoll.h>
+#include <linux/mfd/syscon.h>
+#include <linux/module.h>
+#include <linux/phy/phy.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+
+/* Relative to priv->base */
+#define MVEBU_COMPHY_SERDES_CFG0(n)		(0x0 + (n) * 0x1000)
+#define     MVEBU_COMPHY_SERDES_CFG0_PU_PLL	BIT(1)
+#define     MVEBU_COMPHY_SERDES_CFG0_GEN_RX(n)	((n) << 3)
+#define     MVEBU_COMPHY_SERDES_CFG0_GEN_TX(n)	((n) << 7)
+#define     MVEBU_COMPHY_SERDES_CFG0_PU_RX	BIT(11)
+#define     MVEBU_COMPHY_SERDES_CFG0_PU_TX	BIT(12)
+#define     MVEBU_COMPHY_SERDES_CFG0_HALF_BUS	BIT(14)
+#define MVEBU_COMPHY_SERDES_CFG1(n)		(0x4 + (n) * 0x1000)
+#define     MVEBU_COMPHY_SERDES_CFG1_RESET	BIT(3)
+#define     MVEBU_COMPHY_SERDES_CFG1_RX_INIT	BIT(4)
+#define     MVEBU_COMPHY_SERDES_CFG1_CORE_RESET	BIT(5)
+#define     MVEBU_COMPHY_SERDES_CFG1_RF_RESET	BIT(6)
+#define MVEBU_COMPHY_SERDES_CFG2(n)		(0x8 + (n) * 0x1000)
+#define     MVEBU_COMPHY_SERDES_CFG2_DFE_EN	BIT(4)
+#define MVEBU_COMPHY_SERDES_STATUS0(n)		(0x18 + (n) * 0x1000)
+#define     MVEBU_COMPHY_SERDES_STATUS0_TX_PLL_RDY	BIT(2)
+#define     MVEBU_COMPHY_SERDES_STATUS0_RX_PLL_RDY	BIT(3)
+#define     MVEBU_COMPHY_SERDES_STATUS0_RX_INIT		BIT(4)
+#define MVEBU_COMPHY_PWRPLL_CTRL(n)		(0x804 + (n) * 0x1000)
+#define     MVEBU_COMPHY_PWRPLL_CTRL_RFREQ(n)	((n) << 0)
+#define     MVEBU_COMPHY_PWRPLL_PHY_MODE(n)	((n) << 5)
+#define MVEBU_COMPHY_IMP_CAL(n)			(0x80c + (n) * 0x1000)
+#define     MVEBU_COMPHY_IMP_CAL_TX_EXT(n)	((n) << 10)
+#define     MVEBU_COMPHY_IMP_CAL_TX_EXT_EN	BIT(15)
+#define MVEBU_COMPHY_DFE_RES(n)			(0x81c + (n) * 0x1000)
+#define     MVEBU_COMPHY_DFE_RES_FORCE_GEN_TBL	BIT(15)
+#define MVEBU_COMPHY_COEF(n)			(0x828 + (n) * 0x1000)
+#define     MVEBU_COMPHY_COEF_DFE_EN		BIT(14)
+#define     MVEBU_COMPHY_COEF_DFE_CTRL		BIT(15)
+#define MVEBU_COMPHY_GEN1_S0(n)			(0x834 + (n) * 0x1000)
+#define     MVEBU_COMPHY_GEN1_S0_TX_AMP(n)	((n) << 1)
+#define     MVEBU_COMPHY_GEN1_S0_TX_EMPH(n)	((n) << 7)
+#define MVEBU_COMPHY_GEN1_S1(n)			(0x838 + (n) * 0x1000)
+#define     MVEBU_COMPHY_GEN1_S1_RX_MUL_PI(n)	((n) << 0)
+#define     MVEBU_COMPHY_GEN1_S1_RX_MUL_PF(n)	((n) << 3)
+#define     MVEBU_COMPHY_GEN1_S1_RX_MUL_FI(n)	((n) << 6)
+#define     MVEBU_COMPHY_GEN1_S1_RX_MUL_FF(n)	((n) << 8)
+#define     MVEBU_COMPHY_GEN1_S1_RX_DFE_EN	BIT(10)
+#define     MVEBU_COMPHY_GEN1_S1_RX_DIV(n)	((n) << 11)
+#define MVEBU_COMPHY_GEN1_S2(n)			(0x8f4 + (n) * 0x1000)
+#define     MVEBU_COMPHY_GEN1_S2_TX_EMPH(n)	((n) << 0)
+#define     MVEBU_COMPHY_GEN1_S2_TX_EMPH_EN	BIT(4)
+#define MVEBU_COMPHY_LOOPBACK(n)		(0x88c + (n) * 0x1000)
+#define     MVEBU_COMPHY_LOOPBACK_DBUS_WIDTH(n)	((n) << 1)
+#define MVEBU_COMPHY_VDD_CAL0(n)		(0x908 + (n) * 0x1000)
+#define     MVEBU_COMPHY_VDD_CAL0_CONT_MODE	BIT(15)
+#define MVEBU_COMPHY_EXT_SELV(n)		(0x914 + (n) * 0x1000)
+#define     MVEBU_COMPHY_EXT_SELV_RX_SAMPL(n)	((n) << 5)
+#define MVEBU_COMPHY_MISC_CTRL0(n)		(0x93c + (n) * 0x1000)
+#define     MVEBU_COMPHY_MISC_CTRL0_ICP_FORCE	BIT(5)
+#define     MVEBU_COMPHY_MISC_CTRL0_REFCLK_SEL	BIT(10)
+#define MVEBU_COMPHY_RX_CTRL1(n)		(0x940 + (n) * 0x1000)
+#define     MVEBU_COMPHY_RX_CTRL1_RXCLK2X_SEL	BIT(11)
+#define     MVEBU_COMPHY_RX_CTRL1_CLK8T_EN	BIT(12)
+#define MVEBU_COMPHY_SPEED_DIV(n)		(0x954 + (n) * 0x1000)
+#define     MVEBU_COMPHY_SPEED_DIV_TX_FORCE	BIT(7)
+#define MVEBU_SP_CALIB(n)			(0x96c + (n) * 0x1000)
+#define     MVEBU_SP_CALIB_SAMPLER(n)		((n) << 8)
+#define     MVEBU_SP_CALIB_SAMPLER_EN		BIT(12)
+#define MVEBU_COMPHY_TX_SLEW_RATE(n)		(0x974 + (n) * 0x1000)
+#define     MVEBU_COMPHY_TX_SLEW_RATE_EMPH(n)	((n) << 5)
+#define     MVEBU_COMPHY_TX_SLEW_RATE_SLC(n)	((n) << 10)
+#define MVEBU_COMPHY_DLT_CTRL(n)		(0x984 + (n) * 0x1000)
+#define     MVEBU_COMPHY_DLT_CTRL_DTL_FLOOP_EN	BIT(2)
+#define MVEBU_COMPHY_FRAME_DETECT0(n)		(0xa14 + (n) * 0x1000)
+#define     MVEBU_COMPHY_FRAME_DETECT0_PATN(n)	((n) << 7)
+#define MVEBU_COMPHY_FRAME_DETECT3(n)		(0xa20 + (n) * 0x1000)
+#define     MVEBU_COMPHY_FRAME_DETECT3_LOST_TIMEOUT_EN	BIT(12)
+#define MVEBU_COMPHY_DME(n)			(0xa28 + (n) * 0x1000)
+#define     MVEBU_COMPHY_DME_ETH_MODE		BIT(7)
+#define MVEBU_COMPHY_TRAINING0(n)		(0xa68 + (n) * 0x1000)
+#define     MVEBU_COMPHY_TRAINING0_P2P_HOLD	BIT(15)
+#define MVEBU_COMPHY_TRAINING5(n)		(0xaa4 + (n) * 0x1000)
+#define	    MVEBU_COMPHY_TRAINING5_RX_TIMER(n)	((n) << 0)
+#define MVEBU_COMPHY_TX_TRAIN_PRESET(n)		(0xb1c + (n) * 0x1000)
+#define     MVEBU_COMPHY_TX_TRAIN_PRESET_16B_AUTO_EN	BIT(8)
+#define     MVEBU_COMPHY_TX_TRAIN_PRESET_PRBS11		BIT(9)
+#define MVEBU_COMPHY_GEN1_S3(n)			(0xc40 + (n) * 0x1000)
+#define     MVEBU_COMPHY_GEN1_S3_FBCK_SEL	BIT(9)
+#define MVEBU_COMPHY_GEN1_S4(n)			(0xc44 + (n) * 0x1000)
+#define	    MVEBU_COMPHY_GEN1_S4_DFE_RES(n)	((n) << 8)
+#define MVEBU_COMPHY_TX_PRESET(n)		(0xc68 + (n) * 0x1000)
+#define     MVEBU_COMPHY_TX_PRESET_INDEX(n)	((n) << 0)
+#define MVEBU_COMPHY_GEN1_S5(n)			(0xd38 + (n) * 0x1000)
+#define     MVEBU_COMPHY_GEN1_S5_ICP(n)		((n) << 0)
+
+/* Relative to priv->regmap */
+#define MVEBU_COMPHY_CONF1(n)			(0x1000 + (n) * 0x28)
+#define     MVEBU_COMPHY_CONF1_PWRUP		BIT(1)
+#define     MVEBU_COMPHY_CONF1_USB_PCIE		BIT(2)	/* 0: Ethernet/SATA */
+#define MVEBU_COMPHY_CONF6(n)			(0x1014 + (n) * 0x28)
+#define     MVEBU_COMPHY_CONF6_40B		BIT(18)
+#define MVEBU_COMPHY_SELECTOR			0x1140
+#define     MVEBU_COMPHY_SELECTOR_PHY(n)	((n) * 0x4)
+#define MVEBU_COMPHY_PIPE_SELECTOR		0x1144
+#define     MVEBU_COMPHY_PIPE_SELECTOR_PIPE(n)	((n) * 0x4)
+
+#define MVEBU_COMPHY_LANES	6
+#define MVEBU_COMPHY_PORTS	3
+
+struct mvebu_comhy_conf {
+	enum phy_mode mode;
+	unsigned lane;
+	unsigned port;
+	u32 mux;
+};
+
+#define MVEBU_COMPHY_CONF(_lane, _port, _mode, _mux)	\
+	{						\
+		.lane = _lane,				\
+		.port = _port,				\
+		.mode = _mode,				\
+		.mux = _mux,				\
+	}
+
+static const struct mvebu_comhy_conf mvebu_comphy_cp110_modes[] = {
+	/* lane 0 */
+	MVEBU_COMPHY_CONF(0, 1, PHY_MODE_SGMII, 0x1),
+	MVEBU_COMPHY_CONF(0, 1, PHY_MODE_2500SGMII, 0x1),
+	/* lane 1 */
+	MVEBU_COMPHY_CONF(1, 2, PHY_MODE_SGMII, 0x1),
+	MVEBU_COMPHY_CONF(1, 2, PHY_MODE_2500SGMII, 0x1),
+	/* lane 2 */
+	MVEBU_COMPHY_CONF(2, 0, PHY_MODE_SGMII, 0x1),
+	MVEBU_COMPHY_CONF(2, 0, PHY_MODE_2500SGMII, 0x1),
+	MVEBU_COMPHY_CONF(2, 0, PHY_MODE_10GKR, 0x1),
+	/* lane 3 */
+	MVEBU_COMPHY_CONF(3, 1, PHY_MODE_SGMII, 0x2),
+	MVEBU_COMPHY_CONF(3, 1, PHY_MODE_2500SGMII, 0x2),
+	/* lane 4 */
+	MVEBU_COMPHY_CONF(4, 0, PHY_MODE_SGMII, 0x2),
+	MVEBU_COMPHY_CONF(4, 0, PHY_MODE_2500SGMII, 0x2),
+	MVEBU_COMPHY_CONF(4, 0, PHY_MODE_10GKR, 0x2),
+	MVEBU_COMPHY_CONF(4, 1, PHY_MODE_SGMII, 0x1),
+	/* lane 5 */
+	MVEBU_COMPHY_CONF(5, 2, PHY_MODE_SGMII, 0x1),
+	MVEBU_COMPHY_CONF(5, 2, PHY_MODE_2500SGMII, 0x1),
+};
+
+struct mvebu_comphy_priv {
+	void __iomem *base;
+	struct regmap *regmap;
+	struct device *dev;
+};
+
+struct mvebu_comphy_lane {
+	struct mvebu_comphy_priv *priv;
+	unsigned id;
+	enum phy_mode mode;
+	int port;
+};
+
+static int mvebu_comphy_get_mux(int lane, int port, enum phy_mode mode)
+{
+	int i, n = ARRAY_SIZE(mvebu_comphy_cp110_modes);
+
+	/* Unused PHY mux value is 0x0 */
+	if (mode == PHY_MODE_INVALID)
+		return 0;
+
+	for (i = 0; i < n; i++) {
+		if (mvebu_comphy_cp110_modes[i].lane == lane &&
+		    mvebu_comphy_cp110_modes[i].port == port &&
+		    mvebu_comphy_cp110_modes[i].mode == mode)
+			break;
+	}
+
+	if (i == n)
+		return -EINVAL;
+
+	return mvebu_comphy_cp110_modes[i].mux;
+}
+
+static void mvebu_comphy_ethernet_init_reset(struct mvebu_comphy_lane *lane,
+					     enum phy_mode mode)
+{
+	struct mvebu_comphy_priv *priv = lane->priv;
+	u32 val;
+
+	regmap_read(priv->regmap, MVEBU_COMPHY_CONF1(lane->id), &val);
+	val &= ~MVEBU_COMPHY_CONF1_USB_PCIE;
+	val |= MVEBU_COMPHY_CONF1_PWRUP;
+	regmap_write(priv->regmap, MVEBU_COMPHY_CONF1(lane->id), val);
+
+	/* Select baud rates and PLLs */
+	val = readl(priv->base + MVEBU_COMPHY_SERDES_CFG0(lane->id));
+	val &= ~(MVEBU_COMPHY_SERDES_CFG0_PU_PLL |
+		 MVEBU_COMPHY_SERDES_CFG0_PU_RX |
+		 MVEBU_COMPHY_SERDES_CFG0_PU_TX |
+		 MVEBU_COMPHY_SERDES_CFG0_HALF_BUS |
+		 MVEBU_COMPHY_SERDES_CFG0_GEN_RX(0xf) |
+		 MVEBU_COMPHY_SERDES_CFG0_GEN_TX(0xf));
+	if (mode == PHY_MODE_10GKR)
+		val |= MVEBU_COMPHY_SERDES_CFG0_GEN_RX(0xe) |
+		       MVEBU_COMPHY_SERDES_CFG0_GEN_TX(0xe);
+	else if (mode == PHY_MODE_2500SGMII)
+		val |= MVEBU_COMPHY_SERDES_CFG0_GEN_RX(0x8) |
+		       MVEBU_COMPHY_SERDES_CFG0_GEN_TX(0x8) |
+		       MVEBU_COMPHY_SERDES_CFG0_HALF_BUS;
+	else if (mode == PHY_MODE_SGMII)
+		val |= MVEBU_COMPHY_SERDES_CFG0_GEN_RX(0x6) |
+		       MVEBU_COMPHY_SERDES_CFG0_GEN_TX(0x6) |
+		       MVEBU_COMPHY_SERDES_CFG0_HALF_BUS;
+	writel(val, priv->base + MVEBU_COMPHY_SERDES_CFG0(lane->id));
+
+	/* reset */
+	val = readl(priv->base + MVEBU_COMPHY_SERDES_CFG1(lane->id));
+	val &= ~(MVEBU_COMPHY_SERDES_CFG1_RESET |
+		 MVEBU_COMPHY_SERDES_CFG1_CORE_RESET |
+		 MVEBU_COMPHY_SERDES_CFG1_RF_RESET);
+	writel(val, priv->base + MVEBU_COMPHY_SERDES_CFG1(lane->id));
+
+	/* de-assert reset */
+	val = readl(priv->base + MVEBU_COMPHY_SERDES_CFG1(lane->id));
+	val |= MVEBU_COMPHY_SERDES_CFG1_RESET |
+	       MVEBU_COMPHY_SERDES_CFG1_CORE_RESET;
+	writel(val, priv->base + MVEBU_COMPHY_SERDES_CFG1(lane->id));
+
+	/* wait until clocks are ready */
+	mdelay(1);
+
+	/* exlicitly disable 40B, the bits isn't clear on reset */
+	regmap_read(priv->regmap, MVEBU_COMPHY_CONF6(lane->id), &val);
+	val &= ~MVEBU_COMPHY_CONF6_40B;
+	regmap_write(priv->regmap, MVEBU_COMPHY_CONF6(lane->id), val);
+
+	/* refclk selection */
+	val = readl(priv->base + MVEBU_COMPHY_MISC_CTRL0(lane->id));
+	val &= ~MVEBU_COMPHY_MISC_CTRL0_REFCLK_SEL;
+	if (mode == PHY_MODE_10GKR)
+		val |= MVEBU_COMPHY_MISC_CTRL0_ICP_FORCE;
+	writel(val, priv->base + MVEBU_COMPHY_MISC_CTRL0(lane->id));
+
+	/* power and pll selection */
+	val = readl(priv->base + MVEBU_COMPHY_PWRPLL_CTRL(lane->id));
+	val &= ~(MVEBU_COMPHY_PWRPLL_CTRL_RFREQ(0x1f) |
+		 MVEBU_COMPHY_PWRPLL_PHY_MODE(0x7));
+	val |= MVEBU_COMPHY_PWRPLL_CTRL_RFREQ(0x1) |
+	       MVEBU_COMPHY_PWRPLL_PHY_MODE(0x4);
+	writel(val, priv->base + MVEBU_COMPHY_PWRPLL_CTRL(lane->id));
+
+	val = readl(priv->base + MVEBU_COMPHY_LOOPBACK(lane->id));
+	val &= ~MVEBU_COMPHY_LOOPBACK_DBUS_WIDTH(0x7);
+	val |= MVEBU_COMPHY_LOOPBACK_DBUS_WIDTH(0x1);
+	writel(val, priv->base + MVEBU_COMPHY_LOOPBACK(lane->id));
+}
+
+static int mvebu_comphy_init_plls(struct mvebu_comphy_lane *lane,
+				  enum phy_mode mode)
+{
+	struct mvebu_comphy_priv *priv = lane->priv;
+	u32 val;
+
+	/* SERDES external config */
+	val = readl(priv->base + MVEBU_COMPHY_SERDES_CFG0(lane->id));
+	val |= MVEBU_COMPHY_SERDES_CFG0_PU_PLL |
+	       MVEBU_COMPHY_SERDES_CFG0_PU_RX |
+	       MVEBU_COMPHY_SERDES_CFG0_PU_TX;
+	writel(val, priv->base + MVEBU_COMPHY_SERDES_CFG0(lane->id));
+
+	/* check rx/tx pll */
+	readl_poll_timeout(priv->base + MVEBU_COMPHY_SERDES_STATUS0(lane->id),
+			   val,
+			   val & (MVEBU_COMPHY_SERDES_STATUS0_RX_PLL_RDY |
+				  MVEBU_COMPHY_SERDES_STATUS0_TX_PLL_RDY),
+			   1000, 150000);
+	if (!(val & (MVEBU_COMPHY_SERDES_STATUS0_RX_PLL_RDY |
+		     MVEBU_COMPHY_SERDES_STATUS0_TX_PLL_RDY)))
+		return -ETIMEDOUT;
+
+	/* rx init */
+	val = readl(priv->base + MVEBU_COMPHY_SERDES_CFG1(lane->id));
+	val |= MVEBU_COMPHY_SERDES_CFG1_RX_INIT;
+	writel(val, priv->base + MVEBU_COMPHY_SERDES_CFG1(lane->id));
+
+	/* check rx */
+	readl_poll_timeout(priv->base + MVEBU_COMPHY_SERDES_STATUS0(lane->id),
+			   val, val & MVEBU_COMPHY_SERDES_STATUS0_RX_INIT,
+			   1000, 10000);
+	if (!(val & MVEBU_COMPHY_SERDES_STATUS0_RX_INIT))
+		return -ETIMEDOUT;
+
+	val = readl(priv->base + MVEBU_COMPHY_SERDES_CFG1(lane->id));
+	val &= ~MVEBU_COMPHY_SERDES_CFG1_RX_INIT;
+	writel(val, priv->base + MVEBU_COMPHY_SERDES_CFG1(lane->id));
+
+	return 0;
+}
+
+static int mvebu_comphy_set_mode_sgmii(struct phy *phy, enum phy_mode mode)
+{
+	struct mvebu_comphy_lane *lane = phy_get_drvdata(phy);
+	struct mvebu_comphy_priv *priv = lane->priv;
+	u32 val;
+
+	mvebu_comphy_ethernet_init_reset(lane, mode);
+
+	val = readl(priv->base + MVEBU_COMPHY_RX_CTRL1(lane->id));
+	val &= ~MVEBU_COMPHY_RX_CTRL1_CLK8T_EN;
+	val |= MVEBU_COMPHY_RX_CTRL1_RXCLK2X_SEL;
+	writel(val, priv->base + MVEBU_COMPHY_RX_CTRL1(lane->id));
+
+	val = readl(priv->base + MVEBU_COMPHY_DLT_CTRL(lane->id));
+	val &= ~MVEBU_COMPHY_DLT_CTRL_DTL_FLOOP_EN;
+	writel(val, priv->base + MVEBU_COMPHY_DLT_CTRL(lane->id));
+
+	regmap_read(priv->regmap, MVEBU_COMPHY_CONF1(lane->id), &val);
+	val &= ~MVEBU_COMPHY_CONF1_USB_PCIE;
+	val |= MVEBU_COMPHY_CONF1_PWRUP;
+	regmap_write(priv->regmap, MVEBU_COMPHY_CONF1(lane->id), val);
+
+	val = readl(priv->base + MVEBU_COMPHY_GEN1_S0(lane->id));
+	val &= ~MVEBU_COMPHY_GEN1_S0_TX_EMPH(0xf);
+	val |= MVEBU_COMPHY_GEN1_S0_TX_EMPH(0x1);
+	writel(val, priv->base + MVEBU_COMPHY_GEN1_S0(lane->id));
+
+	return mvebu_comphy_init_plls(lane, PHY_MODE_SGMII);
+}
+
+static int mvebu_comphy_set_mode_10gkr(struct phy *phy)
+{
+	struct mvebu_comphy_lane *lane = phy_get_drvdata(phy);
+	struct mvebu_comphy_priv *priv = lane->priv;
+	u32 val;
+
+	mvebu_comphy_ethernet_init_reset(lane, PHY_MODE_10GKR);
+
+	val = readl(priv->base + MVEBU_COMPHY_RX_CTRL1(lane->id));
+	val |= MVEBU_COMPHY_RX_CTRL1_RXCLK2X_SEL |
+	       MVEBU_COMPHY_RX_CTRL1_CLK8T_EN;
+	writel(val, priv->base + MVEBU_COMPHY_RX_CTRL1(lane->id));
+
+	val = readl(priv->base + MVEBU_COMPHY_DLT_CTRL(lane->id));
+	val |= MVEBU_COMPHY_DLT_CTRL_DTL_FLOOP_EN;
+	writel(val, priv->base + MVEBU_COMPHY_DLT_CTRL(lane->id));
+
+	/* Speed divider */
+	val = readl(priv->base + MVEBU_COMPHY_SPEED_DIV(lane->id));
+	val |= MVEBU_COMPHY_SPEED_DIV_TX_FORCE;
+	writel(val, priv->base + MVEBU_COMPHY_SPEED_DIV(lane->id));
+
+	val = readl(priv->base + MVEBU_COMPHY_SERDES_CFG2(lane->id));
+	val |= MVEBU_COMPHY_SERDES_CFG2_DFE_EN;
+	writel(val, priv->base + MVEBU_COMPHY_SERDES_CFG2(lane->id));
+
+	/* DFE resolution */
+	val = readl(priv->base + MVEBU_COMPHY_DFE_RES(lane->id));
+	val |= MVEBU_COMPHY_DFE_RES_FORCE_GEN_TBL;
+	writel(val, priv->base + MVEBU_COMPHY_DFE_RES(lane->id));
+
+	val = readl(priv->base + MVEBU_COMPHY_GEN1_S0(lane->id));
+	val &= ~(MVEBU_COMPHY_GEN1_S0_TX_AMP(0x1f) |
+		 MVEBU_COMPHY_GEN1_S0_TX_EMPH(0xf));
+	val |= MVEBU_COMPHY_GEN1_S0_TX_AMP(0x1c) |
+	       MVEBU_COMPHY_GEN1_S0_TX_EMPH(0xe);
+	writel(val, priv->base + MVEBU_COMPHY_GEN1_S0(lane->id));
+
+	val = readl(priv->base + MVEBU_COMPHY_GEN1_S2(lane->id));
+	val &= ~MVEBU_COMPHY_GEN1_S2_TX_EMPH(0xf);
+	val |= MVEBU_COMPHY_GEN1_S2_TX_EMPH_EN;
+	writel(val, priv->base + MVEBU_COMPHY_GEN1_S2(lane->id));
+
+	val = readl(priv->base + MVEBU_COMPHY_TX_SLEW_RATE(lane->id));
+	val |= MVEBU_COMPHY_TX_SLEW_RATE_EMPH(0x3) |
+	       MVEBU_COMPHY_TX_SLEW_RATE_SLC(0x3f);
+	writel(val, priv->base + MVEBU_COMPHY_TX_SLEW_RATE(lane->id));
+
+	/* Impedance calibration */
+	val = readl(priv->base + MVEBU_COMPHY_IMP_CAL(lane->id));
+	val &= ~MVEBU_COMPHY_IMP_CAL_TX_EXT(0x1f);
+	val |= MVEBU_COMPHY_IMP_CAL_TX_EXT(0xe) |
+	       MVEBU_COMPHY_IMP_CAL_TX_EXT_EN;
+	writel(val, priv->base + MVEBU_COMPHY_IMP_CAL(lane->id));
+
+	val = readl(priv->base + MVEBU_COMPHY_GEN1_S5(lane->id));
+	val &= ~MVEBU_COMPHY_GEN1_S5_ICP(0xf);
+	writel(val, priv->base + MVEBU_COMPHY_GEN1_S5(lane->id));
+
+	val = readl(priv->base + MVEBU_COMPHY_GEN1_S1(lane->id));
+	val &= ~(MVEBU_COMPHY_GEN1_S1_RX_MUL_PI(0x7) |
+		 MVEBU_COMPHY_GEN1_S1_RX_MUL_PF(0x7) |
+		 MVEBU_COMPHY_GEN1_S1_RX_MUL_FI(0x3) |
+		 MVEBU_COMPHY_GEN1_S1_RX_MUL_FF(0x3));
+	val |= MVEBU_COMPHY_GEN1_S1_RX_DFE_EN |
+	       MVEBU_COMPHY_GEN1_S1_RX_MUL_PI(0x2) |
+	       MVEBU_COMPHY_GEN1_S1_RX_MUL_PF(0x2) |
+	       MVEBU_COMPHY_GEN1_S1_RX_MUL_FF(0x1) |
+	       MVEBU_COMPHY_GEN1_S1_RX_DIV(0x3);
+	writel(val, priv->base + MVEBU_COMPHY_GEN1_S1(lane->id));
+
+	val = readl(priv->base + MVEBU_COMPHY_COEF(lane->id));
+	val &= ~(MVEBU_COMPHY_COEF_DFE_EN | MVEBU_COMPHY_COEF_DFE_CTRL);
+	writel(val, priv->base + MVEBU_COMPHY_COEF(lane->id));
+
+	val = readl(priv->base + MVEBU_COMPHY_GEN1_S4(lane->id));
+	val &= ~MVEBU_COMPHY_GEN1_S4_DFE_RES(0x3);
+	val |= MVEBU_COMPHY_GEN1_S4_DFE_RES(0x1);
+	writel(val, priv->base + MVEBU_COMPHY_GEN1_S4(lane->id));
+
+	val = readl(priv->base + MVEBU_COMPHY_GEN1_S3(lane->id));
+	val |= MVEBU_COMPHY_GEN1_S3_FBCK_SEL;
+	writel(val, priv->base + MVEBU_COMPHY_GEN1_S3(lane->id));
+
+	/* rx training timer */
+	val = readl(priv->base + MVEBU_COMPHY_TRAINING5(lane->id));
+	val &= ~MVEBU_COMPHY_TRAINING5_RX_TIMER(0x3ff);
+	val |= MVEBU_COMPHY_TRAINING5_RX_TIMER(0x13);
+	writel(val, priv->base + MVEBU_COMPHY_TRAINING5(lane->id));
+
+	/* tx train peak to peak hold */
+	val = readl(priv->base + MVEBU_COMPHY_TRAINING0(lane->id));
+	val |= MVEBU_COMPHY_TRAINING0_P2P_HOLD;
+	writel(val, priv->base + MVEBU_COMPHY_TRAINING0(lane->id));
+
+	val = readl(priv->base + MVEBU_COMPHY_TX_PRESET(lane->id));
+	val &= ~MVEBU_COMPHY_TX_PRESET_INDEX(0xf);
+	val |= MVEBU_COMPHY_TX_PRESET_INDEX(0x2);	/* preset coeff */
+	writel(val, priv->base + MVEBU_COMPHY_TX_PRESET(lane->id));
+
+	val = readl(priv->base + MVEBU_COMPHY_FRAME_DETECT3(lane->id));
+	val &= ~MVEBU_COMPHY_FRAME_DETECT3_LOST_TIMEOUT_EN;
+	writel(val, priv->base + MVEBU_COMPHY_FRAME_DETECT3(lane->id));
+
+	val = readl(priv->base + MVEBU_COMPHY_TX_TRAIN_PRESET(lane->id));
+	val |= MVEBU_COMPHY_TX_TRAIN_PRESET_16B_AUTO_EN |
+	       MVEBU_COMPHY_TX_TRAIN_PRESET_PRBS11;
+	writel(val, priv->base + MVEBU_COMPHY_TX_TRAIN_PRESET(lane->id));
+
+	val = readl(priv->base + MVEBU_COMPHY_FRAME_DETECT0(lane->id));
+	val &= ~MVEBU_COMPHY_FRAME_DETECT0_PATN(0x1ff);
+	val |= MVEBU_COMPHY_FRAME_DETECT0_PATN(0x88);
+	writel(val, priv->base + MVEBU_COMPHY_FRAME_DETECT0(lane->id));
+
+	val = readl(priv->base + MVEBU_COMPHY_DME(lane->id));
+	val |= MVEBU_COMPHY_DME_ETH_MODE;
+	writel(val, priv->base + MVEBU_COMPHY_DME(lane->id));
+
+	val = readl(priv->base + MVEBU_COMPHY_VDD_CAL0(lane->id));
+	val |= MVEBU_COMPHY_VDD_CAL0_CONT_MODE;
+	writel(val, priv->base + MVEBU_COMPHY_VDD_CAL0(lane->id));
+
+	val = readl(priv->base + MVEBU_SP_CALIB(lane->id));
+	val &= ~MVEBU_SP_CALIB_SAMPLER(0x3);
+	val |= MVEBU_SP_CALIB_SAMPLER(0x3) |
+	       MVEBU_SP_CALIB_SAMPLER_EN;
+	writel(val, priv->base + MVEBU_SP_CALIB(lane->id));
+	val &= ~MVEBU_SP_CALIB_SAMPLER_EN;
+	writel(val, priv->base + MVEBU_SP_CALIB(lane->id));
+
+	/* External rx regulator */
+	val = readl(priv->base + MVEBU_COMPHY_EXT_SELV(lane->id));
+	val &= ~MVEBU_COMPHY_EXT_SELV_RX_SAMPL(0x1f);
+	val |= MVEBU_COMPHY_EXT_SELV_RX_SAMPL(0x1a);
+	writel(val, priv->base + MVEBU_COMPHY_EXT_SELV(lane->id));
+
+	return mvebu_comphy_init_plls(lane, PHY_MODE_10GKR);
+}
+
+static int mvebu_comphy_power_on(struct phy *phy)
+{
+	struct mvebu_comphy_lane *lane = phy_get_drvdata(phy);
+	struct mvebu_comphy_priv *priv = lane->priv;
+	int ret, mux;
+	u32 val;
+
+	mux = mvebu_comphy_get_mux(lane->id, lane->port, lane->mode);
+	if (mux < 0)
+		return -ENOTSUPP;
+
+	regmap_read(priv->regmap, MVEBU_COMPHY_PIPE_SELECTOR, &val);
+	val &= ~(0xf << MVEBU_COMPHY_PIPE_SELECTOR_PIPE(lane->id));
+	regmap_write(priv->regmap, MVEBU_COMPHY_PIPE_SELECTOR, val);
+
+	regmap_read(priv->regmap, MVEBU_COMPHY_SELECTOR, &val);
+	val &= ~(0xf << MVEBU_COMPHY_SELECTOR_PHY(lane->id));
+	val |= mux << MVEBU_COMPHY_SELECTOR_PHY(lane->id);
+	regmap_write(priv->regmap, MVEBU_COMPHY_SELECTOR, val);
+
+	switch (lane->mode) {
+	case PHY_MODE_SGMII:
+	case PHY_MODE_2500SGMII:
+		ret = mvebu_comphy_set_mode_sgmii(phy, lane->mode);
+		break;
+	case PHY_MODE_10GKR:
+		ret = mvebu_comphy_set_mode_10gkr(phy);
+		break;
+	default:
+		return -ENOTSUPP;
+	}
+
+	/* digital reset */
+	val = readl(priv->base + MVEBU_COMPHY_SERDES_CFG1(lane->id));
+	val |= MVEBU_COMPHY_SERDES_CFG1_RF_RESET;
+	writel(val, priv->base + MVEBU_COMPHY_SERDES_CFG1(lane->id));
+
+	return ret;
+}
+
+static int mvebu_comphy_set_mode(struct phy *phy, enum phy_mode mode)
+{
+	struct mvebu_comphy_lane *lane = phy_get_drvdata(phy);
+
+	if (mvebu_comphy_get_mux(lane->id, lane->port, mode) < 0)
+		return -EINVAL;
+
+	lane->mode = mode;
+	return 0;
+}
+
+static int mvebu_comphy_power_off(struct phy *phy)
+{
+	struct mvebu_comphy_lane *lane = phy_get_drvdata(phy);
+	struct mvebu_comphy_priv *priv = lane->priv;
+	u32 val;
+
+	val = readl(priv->base + MVEBU_COMPHY_SERDES_CFG1(lane->id));
+	val &= ~(MVEBU_COMPHY_SERDES_CFG1_RESET |
+		 MVEBU_COMPHY_SERDES_CFG1_CORE_RESET |
+		 MVEBU_COMPHY_SERDES_CFG1_RF_RESET);
+	writel(val, priv->base + MVEBU_COMPHY_SERDES_CFG1(lane->id));
+
+	regmap_read(priv->regmap, MVEBU_COMPHY_SELECTOR, &val);
+	val &= ~(0xf << MVEBU_COMPHY_SELECTOR_PHY(lane->id));
+	regmap_write(priv->regmap, MVEBU_COMPHY_SELECTOR, val);
+
+	regmap_read(priv->regmap, MVEBU_COMPHY_PIPE_SELECTOR, &val);
+	val &= ~(0xf << MVEBU_COMPHY_PIPE_SELECTOR_PIPE(lane->id));
+	regmap_write(priv->regmap, MVEBU_COMPHY_PIPE_SELECTOR, val);
+
+	return 0;
+}
+
+static const struct phy_ops mvebu_comphy_ops = {
+	.power_on	= mvebu_comphy_power_on,
+	.power_off	= mvebu_comphy_power_off,
+	.set_mode	= mvebu_comphy_set_mode,
+	.owner		= THIS_MODULE,
+};
+
+static struct phy *mvebu_comphy_xlate(struct device *dev,
+				      struct of_phandle_args *args)
+{
+	struct mvebu_comphy_lane *lane;
+	struct phy *phy;
+
+	if (WARN_ON(args->args[0] >= MVEBU_COMPHY_PORTS))
+		return ERR_PTR(-EINVAL);
+
+	phy = of_phy_simple_xlate(dev, args);
+	if (IS_ERR(phy))
+		return phy;
+
+	lane = phy_get_drvdata(phy);
+	if (lane->port >= 0)
+		return ERR_PTR(-EBUSY);
+	lane->port = args->args[0];
+
+	return phy;
+}
+
+static int mvebu_comphy_probe(struct platform_device *pdev)
+{
+	struct mvebu_comphy_priv *priv;
+	struct phy_provider *provider;
+	struct device_node *child;
+	struct resource *res;
+
+	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	priv->dev = &pdev->dev;
+	priv->regmap =
+		syscon_regmap_lookup_by_phandle(pdev->dev.of_node,
+						"marvell,system-controller");
+	if (IS_ERR(priv->regmap))
+		return PTR_ERR(priv->regmap);
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	priv->base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(priv->base))
+		return PTR_ERR(priv->base);
+
+	for_each_available_child_of_node(pdev->dev.of_node, child) {
+		struct mvebu_comphy_lane *lane;
+		struct phy *phy;
+		int ret;
+		u32 val;
+
+		ret = of_property_read_u32(child, "reg", &val);
+		if (ret < 0) {
+			dev_err(&pdev->dev, "missing 'reg' property (%d)\n",
+				ret);
+			continue;
+		}
+
+		if (val >= MVEBU_COMPHY_LANES) {
+			dev_err(&pdev->dev, "invalid 'reg' property\n");
+			continue;
+		}
+
+		lane = devm_kzalloc(&pdev->dev, sizeof(*lane), GFP_KERNEL);
+		if (!lane)
+			return -ENOMEM;
+
+		phy = devm_phy_create(&pdev->dev, child, &mvebu_comphy_ops);
+		if (IS_ERR(phy))
+			return PTR_ERR(phy);
+
+		lane->priv = priv;
+		lane->mode = PHY_MODE_INVALID;
+		lane->id = val;
+		lane->port = -1;
+		phy_set_drvdata(phy, lane);
+
+		/*
+		 * Once all modes are supported in this driver we should call
+		 * mvebu_comphy_power_off(phy) here to avoid relying on the
+		 * bootloader/firmware configuration.
+		 */
+	}
+
+	dev_set_drvdata(&pdev->dev, priv);
+	provider = devm_of_phy_provider_register(&pdev->dev,
+						 mvebu_comphy_xlate);
+	return PTR_ERR_OR_ZERO(provider);
+}
+
+static const struct of_device_id mvebu_comphy_of_match_table[] = {
+	{ .compatible = "marvell,comphy-cp110" },
+	{ },
+};
+MODULE_DEVICE_TABLE(of, mvebu_comphy_of_match_table);
+
+static struct platform_driver mvebu_comphy_driver = {
+	.probe	= mvebu_comphy_probe,
+	.driver	= {
+		.name = "mvebu-comphy",
+		.of_match_table = mvebu_comphy_of_match_table,
+	},
+};
+module_platform_driver(mvebu_comphy_driver);
+
+MODULE_AUTHOR("Antoine Tenart <antoine.tenart@free-electrons.com>");
+MODULE_DESCRIPTION("Common PHY driver for mvebu SoCs");
+MODULE_LICENSE("GPL v2");