| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Antoine Tenart | 3761 | 62.78% | 5 | 21.74% |
| Grzegorz Jaszczyk | 1088 | 18.16% | 5 | 21.74% |
| Matt Pelland | 628 | 10.48% | 2 | 8.70% |
| Miquel Raynal | 421 | 7.03% | 7 | 30.43% |
| Grygorii Strashko | 70 | 1.17% | 2 | 8.70% |
| Nishka Dasgupta | 14 | 0.23% | 1 | 4.35% |
| Dan Carpenter | 9 | 0.15% | 1 | 4.35% |
| Total | 5991 | 23 |
// SPDX-License-Identifier: GPL-2.0 /* * Copyright (C) 2017 Marvell * * Antoine Tenart <antoine.tenart@free-electrons.com> */ #include <linux/arm-smccc.h> #include <linux/clk.h> #include <linux/io.h> #include <linux/iopoll.h> #include <linux/mfd/syscon.h> #include <linux/module.h> #include <linux/phy.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_CFG0_RXAUI_MODE BIT(15) #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_DTL_CTRL(n) (0x984 + (n) * 0x1000) #define MVEBU_COMPHY_DTL_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_SD1_CTRL1 0x1148 #define MVEBU_COMPHY_SD1_CTRL1_RXAUI1_EN BIT(26) #define MVEBU_COMPHY_SD1_CTRL1_RXAUI0_EN BIT(27) #define MVEBU_COMPHY_LANES 6 #define MVEBU_COMPHY_PORTS 3 #define COMPHY_SIP_POWER_ON 0x82000001 #define COMPHY_SIP_POWER_OFF 0x82000002 #define COMPHY_FW_NOT_SUPPORTED (-1) /* * A lane is described by the following bitfields: * [ 1- 0]: COMPHY polarity invertion * [ 2- 7]: COMPHY speed * [ 5-11]: COMPHY port index * [12-16]: COMPHY mode * [17]: Clock source * [18-20]: PCIe width (x1, x2, x4) */ #define COMPHY_FW_POL_OFFSET 0 #define COMPHY_FW_POL_MASK GENMASK(1, 0) #define COMPHY_FW_SPEED_OFFSET 2 #define COMPHY_FW_SPEED_MASK GENMASK(7, 2) #define COMPHY_FW_SPEED_MAX COMPHY_FW_SPEED_MASK #define COMPHY_FW_SPEED_1250 0 #define COMPHY_FW_SPEED_3125 2 #define COMPHY_FW_SPEED_5000 3 #define COMPHY_FW_SPEED_103125 6 #define COMPHY_FW_PORT_OFFSET 8 #define COMPHY_FW_PORT_MASK GENMASK(11, 8) #define COMPHY_FW_MODE_OFFSET 12 #define COMPHY_FW_MODE_MASK GENMASK(16, 12) #define COMPHY_FW_WIDTH_OFFSET 18 #define COMPHY_FW_WIDTH_MASK GENMASK(20, 18) #define COMPHY_FW_PARAM_FULL(mode, port, speed, pol, width) \ ((((pol) << COMPHY_FW_POL_OFFSET) & COMPHY_FW_POL_MASK) | \ (((mode) << COMPHY_FW_MODE_OFFSET) & COMPHY_FW_MODE_MASK) | \ (((port) << COMPHY_FW_PORT_OFFSET) & COMPHY_FW_PORT_MASK) | \ (((speed) << COMPHY_FW_SPEED_OFFSET) & COMPHY_FW_SPEED_MASK) | \ (((width) << COMPHY_FW_WIDTH_OFFSET) & COMPHY_FW_WIDTH_MASK)) #define COMPHY_FW_PARAM(mode, port) \ COMPHY_FW_PARAM_FULL(mode, port, COMPHY_FW_SPEED_MAX, 0, 0) #define COMPHY_FW_PARAM_ETH(mode, port, speed) \ COMPHY_FW_PARAM_FULL(mode, port, speed, 0, 0) #define COMPHY_FW_PARAM_PCIE(mode, port, width) \ COMPHY_FW_PARAM_FULL(mode, port, COMPHY_FW_SPEED_5000, 0, width) #define COMPHY_FW_MODE_SATA 0x1 #define COMPHY_FW_MODE_SGMII 0x2 /* SGMII 1G */ #define COMPHY_FW_MODE_HS_SGMII 0x3 /* SGMII 2.5G */ #define COMPHY_FW_MODE_USB3H 0x4 #define COMPHY_FW_MODE_USB3D 0x5 #define COMPHY_FW_MODE_PCIE 0x6 #define COMPHY_FW_MODE_RXAUI 0x7 #define COMPHY_FW_MODE_XFI 0x8 /* SFI: 0x9 (is treated like XFI) */ struct mvebu_comphy_conf { enum phy_mode mode; int submode; unsigned lane; unsigned port; u32 mux; u32 fw_mode; }; #define ETH_CONF(_lane, _port, _submode, _mux, _fw) \ { \ .lane = _lane, \ .port = _port, \ .mode = PHY_MODE_ETHERNET, \ .submode = _submode, \ .mux = _mux, \ .fw_mode = _fw, \ } #define GEN_CONF(_lane, _port, _mode, _fw) \ { \ .lane = _lane, \ .port = _port, \ .mode = _mode, \ .submode = PHY_INTERFACE_MODE_NA, \ .mux = -1, \ .fw_mode = _fw, \ } static const struct mvebu_comphy_conf mvebu_comphy_cp110_modes[] = { /* lane 0 */ GEN_CONF(0, 0, PHY_MODE_PCIE, COMPHY_FW_MODE_PCIE), ETH_CONF(0, 1, PHY_INTERFACE_MODE_SGMII, 0x1, COMPHY_FW_MODE_SGMII), ETH_CONF(0, 1, PHY_INTERFACE_MODE_2500BASEX, 0x1, COMPHY_FW_MODE_HS_SGMII), GEN_CONF(0, 1, PHY_MODE_SATA, COMPHY_FW_MODE_SATA), /* lane 1 */ GEN_CONF(1, 0, PHY_MODE_USB_HOST_SS, COMPHY_FW_MODE_USB3H), GEN_CONF(1, 0, PHY_MODE_USB_DEVICE_SS, COMPHY_FW_MODE_USB3D), GEN_CONF(1, 0, PHY_MODE_SATA, COMPHY_FW_MODE_SATA), GEN_CONF(1, 0, PHY_MODE_PCIE, COMPHY_FW_MODE_PCIE), ETH_CONF(1, 2, PHY_INTERFACE_MODE_SGMII, 0x1, COMPHY_FW_MODE_SGMII), ETH_CONF(1, 2, PHY_INTERFACE_MODE_2500BASEX, 0x1, COMPHY_FW_MODE_HS_SGMII), /* lane 2 */ ETH_CONF(2, 0, PHY_INTERFACE_MODE_SGMII, 0x1, COMPHY_FW_MODE_SGMII), ETH_CONF(2, 0, PHY_INTERFACE_MODE_2500BASEX, 0x1, COMPHY_FW_MODE_HS_SGMII), ETH_CONF(2, 0, PHY_INTERFACE_MODE_RXAUI, 0x1, COMPHY_FW_MODE_RXAUI), ETH_CONF(2, 0, PHY_INTERFACE_MODE_10GKR, 0x1, COMPHY_FW_MODE_XFI), GEN_CONF(2, 0, PHY_MODE_USB_HOST_SS, COMPHY_FW_MODE_USB3H), GEN_CONF(2, 0, PHY_MODE_SATA, COMPHY_FW_MODE_SATA), GEN_CONF(2, 0, PHY_MODE_PCIE, COMPHY_FW_MODE_PCIE), /* lane 3 */ GEN_CONF(3, 0, PHY_MODE_PCIE, COMPHY_FW_MODE_PCIE), ETH_CONF(3, 1, PHY_INTERFACE_MODE_SGMII, 0x2, COMPHY_FW_MODE_SGMII), ETH_CONF(3, 1, PHY_INTERFACE_MODE_2500BASEX, 0x2, COMPHY_FW_MODE_HS_SGMII), ETH_CONF(3, 1, PHY_INTERFACE_MODE_RXAUI, 0x1, COMPHY_FW_MODE_RXAUI), GEN_CONF(3, 1, PHY_MODE_USB_HOST_SS, COMPHY_FW_MODE_USB3H), GEN_CONF(3, 1, PHY_MODE_SATA, COMPHY_FW_MODE_SATA), /* lane 4 */ ETH_CONF(4, 0, PHY_INTERFACE_MODE_SGMII, 0x2, COMPHY_FW_MODE_SGMII), ETH_CONF(4, 0, PHY_INTERFACE_MODE_2500BASEX, 0x2, COMPHY_FW_MODE_HS_SGMII), ETH_CONF(4, 0, PHY_INTERFACE_MODE_10GKR, 0x2, COMPHY_FW_MODE_XFI), ETH_CONF(4, 0, PHY_INTERFACE_MODE_RXAUI, 0x2, COMPHY_FW_MODE_RXAUI), GEN_CONF(4, 0, PHY_MODE_USB_DEVICE_SS, COMPHY_FW_MODE_USB3D), GEN_CONF(4, 1, PHY_MODE_USB_HOST_SS, COMPHY_FW_MODE_USB3H), GEN_CONF(4, 1, PHY_MODE_PCIE, COMPHY_FW_MODE_PCIE), ETH_CONF(4, 1, PHY_INTERFACE_MODE_SGMII, 0x1, COMPHY_FW_MODE_SGMII), ETH_CONF(4, 1, PHY_INTERFACE_MODE_2500BASEX, -1, COMPHY_FW_MODE_HS_SGMII), ETH_CONF(4, 1, PHY_INTERFACE_MODE_10GKR, -1, COMPHY_FW_MODE_XFI), /* lane 5 */ ETH_CONF(5, 1, PHY_INTERFACE_MODE_RXAUI, 0x2, COMPHY_FW_MODE_RXAUI), GEN_CONF(5, 1, PHY_MODE_SATA, COMPHY_FW_MODE_SATA), ETH_CONF(5, 2, PHY_INTERFACE_MODE_SGMII, 0x1, COMPHY_FW_MODE_SGMII), ETH_CONF(5, 2, PHY_INTERFACE_MODE_2500BASEX, 0x1, COMPHY_FW_MODE_HS_SGMII), GEN_CONF(5, 2, PHY_MODE_PCIE, COMPHY_FW_MODE_PCIE), }; struct mvebu_comphy_priv { void __iomem *base; struct regmap *regmap; struct device *dev; struct clk *mg_domain_clk; struct clk *mg_core_clk; struct clk *axi_clk; unsigned long cp_phys; }; struct mvebu_comphy_lane { struct mvebu_comphy_priv *priv; unsigned id; enum phy_mode mode; int submode; int port; }; static int mvebu_comphy_smc(unsigned long function, unsigned long phys, unsigned long lane, unsigned long mode) { struct arm_smccc_res res; arm_smccc_smc(function, phys, lane, mode, 0, 0, 0, 0, &res); return res.a0; } static int mvebu_comphy_get_mode(bool fw_mode, int lane, int port, enum phy_mode mode, int submode) { int i, n = ARRAY_SIZE(mvebu_comphy_cp110_modes); /* Ignore PCIe submode: it represents the width */ bool ignore_submode = (mode == PHY_MODE_PCIE); const struct mvebu_comphy_conf *conf; /* Unused PHY mux value is 0x0 */ if (mode == PHY_MODE_INVALID) return 0; for (i = 0; i < n; i++) { conf = &mvebu_comphy_cp110_modes[i]; if (conf->lane == lane && conf->port == port && conf->mode == mode && (conf->submode == submode || ignore_submode)) break; } if (i == n) return -EINVAL; if (fw_mode) return conf->fw_mode; else return conf->mux; } static inline int mvebu_comphy_get_mux(int lane, int port, enum phy_mode mode, int submode) { return mvebu_comphy_get_mode(false, lane, port, mode, submode); } static inline int mvebu_comphy_get_fw_mode(int lane, int port, enum phy_mode mode, int submode) { return mvebu_comphy_get_mode(true, lane, port, mode, submode); } static int mvebu_comphy_ethernet_init_reset(struct mvebu_comphy_lane *lane) { 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) | MVEBU_COMPHY_SERDES_CFG0_RXAUI_MODE); switch (lane->submode) { case PHY_INTERFACE_MODE_10GKR: val |= MVEBU_COMPHY_SERDES_CFG0_GEN_RX(0xe) | MVEBU_COMPHY_SERDES_CFG0_GEN_TX(0xe); break; case PHY_INTERFACE_MODE_RXAUI: val |= MVEBU_COMPHY_SERDES_CFG0_GEN_RX(0xb) | MVEBU_COMPHY_SERDES_CFG0_GEN_TX(0xb) | MVEBU_COMPHY_SERDES_CFG0_RXAUI_MODE; break; case PHY_INTERFACE_MODE_2500BASEX: val |= MVEBU_COMPHY_SERDES_CFG0_GEN_RX(0x8) | MVEBU_COMPHY_SERDES_CFG0_GEN_TX(0x8) | MVEBU_COMPHY_SERDES_CFG0_HALF_BUS; break; case PHY_INTERFACE_MODE_SGMII: val |= MVEBU_COMPHY_SERDES_CFG0_GEN_RX(0x6) | MVEBU_COMPHY_SERDES_CFG0_GEN_TX(0x6) | MVEBU_COMPHY_SERDES_CFG0_HALF_BUS; break; default: dev_err(priv->dev, "unsupported comphy submode (%d) on lane %d\n", lane->submode, lane->id); return -ENOTSUPP; } writel(val, priv->base + MVEBU_COMPHY_SERDES_CFG0(lane->id)); if (lane->submode == PHY_INTERFACE_MODE_RXAUI) { regmap_read(priv->regmap, MVEBU_COMPHY_SD1_CTRL1, &val); switch (lane->id) { case 2: case 3: val |= MVEBU_COMPHY_SD1_CTRL1_RXAUI0_EN; break; case 4: case 5: val |= MVEBU_COMPHY_SD1_CTRL1_RXAUI1_EN; break; default: dev_err(priv->dev, "RXAUI is not supported on comphy lane %d\n", lane->id); return -EINVAL; } regmap_write(priv->regmap, MVEBU_COMPHY_SD1_CTRL1, val); } /* 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 (lane->submode == PHY_INTERFACE_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)); return 0; } static int mvebu_comphy_init_plls(struct mvebu_comphy_lane *lane) { 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) { struct mvebu_comphy_lane *lane = phy_get_drvdata(phy); struct mvebu_comphy_priv *priv = lane->priv; u32 val; int err; err = mvebu_comphy_ethernet_init_reset(lane); if (err) return err; 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_DTL_CTRL(lane->id)); val &= ~MVEBU_COMPHY_DTL_CTRL_DTL_FLOOP_EN; writel(val, priv->base + MVEBU_COMPHY_DTL_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); } static int mvebu_comphy_set_mode_rxaui(struct phy *phy) { struct mvebu_comphy_lane *lane = phy_get_drvdata(phy); struct mvebu_comphy_priv *priv = lane->priv; u32 val; int err; err = mvebu_comphy_ethernet_init_reset(lane); if (err) return err; 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_DTL_CTRL(lane->id)); val |= MVEBU_COMPHY_DTL_CTRL_DTL_FLOOP_EN; writel(val, priv->base + MVEBU_COMPHY_DTL_CTRL(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)); 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_EMPH(0xf); val |= MVEBU_COMPHY_GEN1_S0_TX_EMPH(0xd); writel(val, priv->base + MVEBU_COMPHY_GEN1_S0(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)); val |= MVEBU_COMPHY_GEN1_S1_RX_MUL_PI(0x1) | MVEBU_COMPHY_GEN1_S1_RX_MUL_PF(0x1) | MVEBU_COMPHY_GEN1_S1_RX_DFE_EN; 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)); return mvebu_comphy_init_plls(lane); } 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; int err; err = mvebu_comphy_ethernet_init_reset(lane); if (err) return err; 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_DTL_CTRL(lane->id)); val |= MVEBU_COMPHY_DTL_CTRL_DTL_FLOOP_EN; writel(val, priv->base + MVEBU_COMPHY_DTL_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); } static int mvebu_comphy_power_on_legacy(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, lane->submode); 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->submode) { case PHY_INTERFACE_MODE_SGMII: case PHY_INTERFACE_MODE_2500BASEX: ret = mvebu_comphy_set_mode_sgmii(phy); break; case PHY_INTERFACE_MODE_RXAUI: ret = mvebu_comphy_set_mode_rxaui(phy); break; case PHY_INTERFACE_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_power_on(struct phy *phy) { struct mvebu_comphy_lane *lane = phy_get_drvdata(phy); struct mvebu_comphy_priv *priv = lane->priv; int fw_mode, fw_speed; u32 fw_param = 0; int ret; fw_mode = mvebu_comphy_get_fw_mode(lane->id, lane->port, lane->mode, lane->submode); if (fw_mode < 0) goto try_legacy; /* Try SMC flow first */ switch (lane->mode) { case PHY_MODE_ETHERNET: switch (lane->submode) { case PHY_INTERFACE_MODE_RXAUI: dev_dbg(priv->dev, "set lane %d to RXAUI mode\n", lane->id); fw_speed = 0; break; case PHY_INTERFACE_MODE_SGMII: dev_dbg(priv->dev, "set lane %d to 1000BASE-X mode\n", lane->id); fw_speed = COMPHY_FW_SPEED_1250; break; case PHY_INTERFACE_MODE_2500BASEX: dev_dbg(priv->dev, "set lane %d to 2500BASE-X mode\n", lane->id); fw_speed = COMPHY_FW_SPEED_3125; break; case PHY_INTERFACE_MODE_10GKR: dev_dbg(priv->dev, "set lane %d to 10G-KR mode\n", lane->id); fw_speed = COMPHY_FW_SPEED_103125; break; default: dev_err(priv->dev, "unsupported Ethernet mode (%d)\n", lane->submode); return -ENOTSUPP; } fw_param = COMPHY_FW_PARAM_ETH(fw_mode, lane->port, fw_speed); break; case PHY_MODE_USB_HOST_SS: case PHY_MODE_USB_DEVICE_SS: dev_dbg(priv->dev, "set lane %d to USB3 mode\n", lane->id); fw_param = COMPHY_FW_PARAM(fw_mode, lane->port); break; case PHY_MODE_SATA: dev_dbg(priv->dev, "set lane %d to SATA mode\n", lane->id); fw_param = COMPHY_FW_PARAM(fw_mode, lane->port); break; case PHY_MODE_PCIE: dev_dbg(priv->dev, "set lane %d to PCIe mode (x%d)\n", lane->id, lane->submode); fw_param = COMPHY_FW_PARAM_PCIE(fw_mode, lane->port, lane->submode); break; default: dev_err(priv->dev, "unsupported PHY mode (%d)\n", lane->mode); return -ENOTSUPP; } ret = mvebu_comphy_smc(COMPHY_SIP_POWER_ON, priv->cp_phys, lane->id, fw_param); if (!ret) return ret; if (ret == COMPHY_FW_NOT_SUPPORTED) dev_err(priv->dev, "unsupported SMC call, try updating your firmware\n"); dev_warn(priv->dev, "Firmware could not configure PHY %d with mode %d (ret: %d), trying legacy method\n", lane->id, lane->mode, ret); try_legacy: /* Fallback to Linux's implementation */ return mvebu_comphy_power_on_legacy(phy); } static int mvebu_comphy_set_mode(struct phy *phy, enum phy_mode mode, int submode) { struct mvebu_comphy_lane *lane = phy_get_drvdata(phy); if (submode == PHY_INTERFACE_MODE_1000BASEX) submode = PHY_INTERFACE_MODE_SGMII; if (mvebu_comphy_get_fw_mode(lane->id, lane->port, mode, submode) < 0) return -EINVAL; lane->mode = mode; lane->submode = submode; /* PCIe submode represents the width */ if (mode == PHY_MODE_PCIE && !lane->submode) lane->submode = 1; return 0; } static int mvebu_comphy_power_off_legacy(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 int mvebu_comphy_power_off(struct phy *phy) { struct mvebu_comphy_lane *lane = phy_get_drvdata(phy); struct mvebu_comphy_priv *priv = lane->priv; int ret; ret = mvebu_comphy_smc(COMPHY_SIP_POWER_OFF, priv->cp_phys, lane->id, 0); if (!ret) return ret; /* Fallback to Linux's implementation */ return mvebu_comphy_power_off_legacy(phy); } 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); lane->port = args->args[0]; return phy; } static int mvebu_comphy_init_clks(struct mvebu_comphy_priv *priv) { int ret; priv->mg_domain_clk = devm_clk_get(priv->dev, "mg_clk"); if (IS_ERR(priv->mg_domain_clk)) return PTR_ERR(priv->mg_domain_clk); ret = clk_prepare_enable(priv->mg_domain_clk); if (ret < 0) return ret; priv->mg_core_clk = devm_clk_get(priv->dev, "mg_core_clk"); if (IS_ERR(priv->mg_core_clk)) { ret = PTR_ERR(priv->mg_core_clk); goto dis_mg_domain_clk; } ret = clk_prepare_enable(priv->mg_core_clk); if (ret < 0) goto dis_mg_domain_clk; priv->axi_clk = devm_clk_get(priv->dev, "axi_clk"); if (IS_ERR(priv->axi_clk)) { ret = PTR_ERR(priv->axi_clk); goto dis_mg_core_clk; } ret = clk_prepare_enable(priv->axi_clk); if (ret < 0) goto dis_mg_core_clk; return 0; dis_mg_core_clk: clk_disable_unprepare(priv->mg_core_clk); dis_mg_domain_clk: clk_disable_unprepare(priv->mg_domain_clk); priv->mg_domain_clk = NULL; priv->mg_core_clk = NULL; priv->axi_clk = NULL; return ret; }; static void mvebu_comphy_disable_unprepare_clks(struct mvebu_comphy_priv *priv) { if (priv->axi_clk) clk_disable_unprepare(priv->axi_clk); if (priv->mg_core_clk) clk_disable_unprepare(priv->mg_core_clk); if (priv->mg_domain_clk) clk_disable_unprepare(priv->mg_domain_clk); } 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; int ret; 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); /* * Ignore error if clocks have not been initialized properly for DT * compatibility reasons. */ ret = mvebu_comphy_init_clks(priv); if (ret) { if (ret == -EPROBE_DEFER) return ret; dev_warn(&pdev->dev, "cannot initialize clocks\n"); } /* * Hack to retrieve a physical offset relative to this CP that will be * given to the firmware */ priv->cp_phys = res->start; for_each_available_child_of_node(pdev->dev.of_node, child) { struct mvebu_comphy_lane *lane; struct phy *phy; 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) { of_node_put(child); ret = -ENOMEM; goto disable_clks; } phy = devm_phy_create(&pdev->dev, child, &mvebu_comphy_ops); if (IS_ERR(phy)) { of_node_put(child); ret = PTR_ERR(phy); goto disable_clks; } lane->priv = priv; lane->mode = PHY_MODE_INVALID; lane->submode = PHY_INTERFACE_MODE_NA; lane->id = val; lane->port = -1; phy_set_drvdata(phy, lane); /* * All modes are supported in this driver so we could call * mvebu_comphy_power_off(phy) here to avoid relying on the * bootloader/firmware configuration, but for compatibility * reasons we cannot de-configure the COMPHY without being sure * that the firmware is up-to-date and fully-featured. */ } dev_set_drvdata(&pdev->dev, priv); provider = devm_of_phy_provider_register(&pdev->dev, mvebu_comphy_xlate); return PTR_ERR_OR_ZERO(provider); disable_clks: mvebu_comphy_disable_unprepare_clks(priv); return ret; } 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");
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