// SPDX-License-Identifier: GPL-2.0-or-later /* * Rockchip USBDP Combo PHY with Samsung IP block driver * * Copyright (C) 2021 Rockchip Electronics Co., Ltd */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define BIT_WRITEABLE_SHIFT 16 enum { UDPHY_MODE_NONE = 0, UDPHY_MODE_USB = BIT(0), UDPHY_MODE_DP = BIT(1), UDPHY_MODE_DP_USB = BIT(1) | BIT(0), }; struct udphy_grf_reg { unsigned int offset; unsigned int bitend; unsigned int bitstart; unsigned int disable; unsigned int enable; }; /** * struct reg_sequence - An individual write from a sequence of writes. * * @reg: Register address. * @def: Register value. * @delay_us: Delay to be applied after the register write in microseconds * * Register/value pairs for sequences of writes with an optional delay in * microseconds to be applied after each write. */ struct reg_sequence { unsigned int reg; unsigned int def; unsigned int delay_us; }; struct udphy_grf_cfg { /* u2phy-grf */ struct udphy_grf_reg bvalid_phy_con; struct udphy_grf_reg bvalid_grf_con; /* usb-grf */ struct udphy_grf_reg usb3otg0_cfg; struct udphy_grf_reg usb3otg1_cfg; /* usbdpphy-grf */ struct udphy_grf_reg low_pwrn; struct udphy_grf_reg rx_lfps; }; struct rockchip_udphy; struct rockchip_udphy_cfg { /* resets to be requested */ const char * const *rst_list; int num_rsts; struct udphy_grf_cfg grfcfg; int (*combophy_init)(struct rockchip_udphy *udphy); }; struct rockchip_udphy { struct udevice *dev; struct regmap *pma_regmap; struct regmap *u2phygrf; struct regmap *udphygrf; struct regmap *usbgrf; struct regmap *vogrf; /* clocks and rests */ struct reset_ctl *rsts; /* PHY status management */ bool flip; bool mode_change; u8 mode; u8 status; /* utilized for USB */ bool hs; /* flag for high-speed */ /* utilized for DP */ struct gpio_desc *sbu1_dc_gpio; struct gpio_desc *sbu2_dc_gpio; u32 lane_mux_sel[4]; u32 dp_lane_sel[4]; u32 dp_aux_dout_sel; u32 dp_aux_din_sel; int id; /* PHY const config */ const struct rockchip_udphy_cfg *cfgs; }; static const struct reg_sequence rk3588_udphy_24m_refclk_cfg[] = { {0x0090, 0x68}, {0x0094, 0x68}, {0x0128, 0x24}, {0x012c, 0x44}, {0x0130, 0x3f}, {0x0134, 0x44}, {0x015c, 0xa9}, {0x0160, 0x71}, {0x0164, 0x71}, {0x0168, 0xa9}, {0x0174, 0xa9}, {0x0178, 0x71}, {0x017c, 0x71}, {0x0180, 0xa9}, {0x018c, 0x41}, {0x0190, 0x00}, {0x0194, 0x05}, {0x01ac, 0x2a}, {0x01b0, 0x17}, {0x01b4, 0x17}, {0x01b8, 0x2a}, {0x01c8, 0x04}, {0x01cc, 0x08}, {0x01d0, 0x08}, {0x01d4, 0x04}, {0x01d8, 0x20}, {0x01dc, 0x01}, {0x01e0, 0x09}, {0x01e4, 0x03}, {0x01f0, 0x29}, {0x01f4, 0x02}, {0x01f8, 0x02}, {0x01fc, 0x29}, {0x0208, 0x2a}, {0x020c, 0x17}, {0x0210, 0x17}, {0x0214, 0x2a}, {0x0224, 0x20}, {0x03f0, 0x0d}, {0x03f4, 0x09}, {0x03f8, 0x09}, {0x03fc, 0x0d}, {0x0404, 0x0e}, {0x0408, 0x14}, {0x040c, 0x14}, {0x0410, 0x3b}, {0x0ce0, 0x68}, {0x0ce8, 0xd0}, {0x0cf0, 0x87}, {0x0cf8, 0x70}, {0x0d00, 0x70}, {0x0d08, 0xa9}, {0x1ce0, 0x68}, {0x1ce8, 0xd0}, {0x1cf0, 0x87}, {0x1cf8, 0x70}, {0x1d00, 0x70}, {0x1d08, 0xa9}, {0x0a3c, 0xd0}, {0x0a44, 0xd0}, {0x0a48, 0x01}, {0x0a4c, 0x0d}, {0x0a54, 0xe0}, {0x0a5c, 0xe0}, {0x0a64, 0xa8}, {0x1a3c, 0xd0}, {0x1a44, 0xd0}, {0x1a48, 0x01}, {0x1a4c, 0x0d}, {0x1a54, 0xe0}, {0x1a5c, 0xe0}, {0x1a64, 0xa8} }; static const struct reg_sequence rk3588_udphy_init_sequence[] = { {0x0104, 0x44}, {0x0234, 0xE8}, {0x0248, 0x44}, {0x028C, 0x18}, {0x081C, 0xE5}, {0x0878, 0x00}, {0x0994, 0x1C}, {0x0AF0, 0x00}, {0x181C, 0xE5}, {0x1878, 0x00}, {0x1994, 0x1C}, {0x1AF0, 0x00}, {0x0428, 0x60}, {0x0D58, 0x33}, {0x1D58, 0x33}, {0x0990, 0x74}, {0x0D64, 0x17}, {0x08C8, 0x13}, {0x1990, 0x74}, {0x1D64, 0x17}, {0x18C8, 0x13}, {0x0D90, 0x40}, {0x0DA8, 0x40}, {0x0DC0, 0x40}, {0x0DD8, 0x40}, {0x1D90, 0x40}, {0x1DA8, 0x40}, {0x1DC0, 0x40}, {0x1DD8, 0x40}, {0x03C0, 0x30}, {0x03C4, 0x06}, {0x0E10, 0x00}, {0x1E10, 0x00}, {0x043C, 0x0F}, {0x0D2C, 0xFF}, {0x1D2C, 0xFF}, {0x0D34, 0x0F}, {0x1D34, 0x0F}, {0x08FC, 0x2A}, {0x0914, 0x28}, {0x0A30, 0x03}, {0x0E38, 0x05}, {0x0ECC, 0x27}, {0x0ED0, 0x22}, {0x0ED4, 0x26}, {0x18FC, 0x2A}, {0x1914, 0x28}, {0x1A30, 0x03}, {0x1E38, 0x05}, {0x1ECC, 0x27}, {0x1ED0, 0x22}, {0x1ED4, 0x26}, {0x0048, 0x0F}, {0x0060, 0x3C}, {0x0064, 0xF7}, {0x006C, 0x20}, {0x0070, 0x7D}, {0x0074, 0x68}, {0x0AF4, 0x1A}, {0x1AF4, 0x1A}, {0x0440, 0x3F}, {0x10D4, 0x08}, {0x20D4, 0x08}, {0x00D4, 0x30}, {0x0024, 0x6e}, }; static inline int grfreg_write(struct regmap *base, const struct udphy_grf_reg *reg, bool en) { u32 val, mask, tmp; tmp = en ? reg->enable : reg->disable; mask = GENMASK(reg->bitend, reg->bitstart); val = (tmp << reg->bitstart) | (mask << BIT_WRITEABLE_SHIFT); return regmap_write(base, reg->offset, val); } static int __regmap_multi_reg_write(struct regmap *map, const struct reg_sequence *regs, int num_regs) { int i, ret = 0; for (i = 0; i < num_regs; i++) { ret = regmap_write(map, regs[i].reg, regs[i].def); if (regs[i].delay_us) udelay(regs[i].delay_us); } return ret; } static int udphy_clk_init(struct rockchip_udphy *udphy, struct udevice *dev) { return 0; } static int udphy_reset_init(struct rockchip_udphy *udphy, struct udevice *dev) { const struct rockchip_udphy_cfg *cfg = udphy->cfgs; int idx; int ret; udphy->rsts = devm_kcalloc(dev, cfg->num_rsts, sizeof(*udphy->rsts), GFP_KERNEL); if (!udphy->rsts) return -ENOMEM; for (idx = 0; idx < cfg->num_rsts; idx++) { const char *name = cfg->rst_list[idx]; ret = reset_get_by_name(dev, name, &udphy->rsts[idx]); if (ret) { dev_err(dev, "failed to get %s reset\n", name); goto err; } reset_assert(&udphy->rsts[idx]); } return 0; err: devm_kfree(dev, udphy->rsts); return ret; } static int udphy_get_rst_idx(const char * const *list, int num, char *name) { int idx; for (idx = 0; idx < num; idx++) { if (!strcmp(list[idx], name)) return idx; } return -EINVAL; } static int udphy_reset_assert(struct rockchip_udphy *udphy, char *name) { const struct rockchip_udphy_cfg *cfg = udphy->cfgs; int idx; idx = udphy_get_rst_idx(cfg->rst_list, cfg->num_rsts, name); if (idx < 0) return idx; return reset_assert(&udphy->rsts[idx]); } static int udphy_reset_deassert(struct rockchip_udphy *udphy, char *name) { const struct rockchip_udphy_cfg *cfg = udphy->cfgs; int idx; idx = udphy_get_rst_idx(cfg->rst_list, cfg->num_rsts, name); if (idx < 0) return idx; return reset_deassert(&udphy->rsts[idx]); } static void udphy_u3_port_disable(struct rockchip_udphy *udphy, u8 disable) { const struct rockchip_udphy_cfg *cfg = udphy->cfgs; const struct udphy_grf_reg *preg; preg = udphy->id ? &cfg->grfcfg.usb3otg1_cfg : &cfg->grfcfg.usb3otg0_cfg; grfreg_write(udphy->usbgrf, preg, disable); } __maybe_unused static void udphy_usb_bvalid_enable(struct rockchip_udphy *udphy, u8 enable) { const struct rockchip_udphy_cfg *cfg = udphy->cfgs; grfreg_write(udphy->u2phygrf, &cfg->grfcfg.bvalid_phy_con, enable); grfreg_write(udphy->u2phygrf, &cfg->grfcfg.bvalid_grf_con, enable); } /* * In usb/dp combo phy driver, here are 2 ways to mapping lanes. * * 1 Type-C Mapping table (DP_Alt_Mode V1.0b remove ABF pin mapping) * --------------------------------------------------------------------------- * Type-C Pin B11-B10 A2-A3 A11-A10 B2-B3 * PHY Pad ln0(tx/rx) ln1(tx) ln2(tx/rx) ln3(tx) * C/E(Normal) dpln3 dpln2 dpln0 dpln1 * C/E(Flip ) dpln0 dpln1 dpln3 dpln2 * D/F(Normal) usbrx usbtx dpln0 dpln1 * D/F(Flip ) dpln0 dpln1 usbrx usbtx * A(Normal ) dpln3 dpln1 dpln2 dpln0 * A(Flip ) dpln2 dpln0 dpln3 dpln1 * B(Normal ) usbrx usbtx dpln1 dpln0 * B(Flip ) dpln1 dpln0 usbrx usbtx * --------------------------------------------------------------------------- * * 2 Mapping the lanes in dtsi * if all 4 lane assignment for dp function, define rockchip,dp-lane-mux = ; * sample as follow: * --------------------------------------------------------------------------- * B11-B10 A2-A3 A11-A10 B2-B3 * rockchip,dp-lane-mux ln0(tx/rx) ln1(tx) ln2(tx/rx) ln3(tx) * <0 1 2 3> dpln0 dpln1 dpln2 dpln3 * <2 3 0 1> dpln2 dpln3 dpln0 dpln1 * --------------------------------------------------------------------------- * if 2 lane for dp function, 2 lane for usb function, define rockchip,dp-lane-mux = ; * sample as follow: * --------------------------------------------------------------------------- * B11-B10 A2-A3 A11-A10 B2-B3 * rockchip,dp-lane-mux ln0(tx/rx) ln1(tx) ln2(tx/rx) ln3(tx) * <0 1> dpln0 dpln1 usbrx usbtx * <2 3> usbrx usbtx dpln0 dpln1 * --------------------------------------------------------------------------- */ __maybe_unused static int upphy_set_typec_default_mapping(struct rockchip_udphy *udphy) { if (udphy->flip) { udphy->dp_lane_sel[0] = 0; udphy->dp_lane_sel[1] = 1; udphy->dp_lane_sel[2] = 3; udphy->dp_lane_sel[3] = 2; udphy->lane_mux_sel[0] = PHY_LANE_MUX_DP; udphy->lane_mux_sel[1] = PHY_LANE_MUX_DP; udphy->lane_mux_sel[2] = PHY_LANE_MUX_USB; udphy->lane_mux_sel[3] = PHY_LANE_MUX_USB; udphy->dp_aux_dout_sel = PHY_AUX_DP_DATA_POL_INVERT; udphy->dp_aux_din_sel = PHY_AUX_DP_DATA_POL_INVERT; } else { udphy->dp_lane_sel[0] = 2; udphy->dp_lane_sel[1] = 3; udphy->dp_lane_sel[2] = 1; udphy->dp_lane_sel[3] = 0; udphy->lane_mux_sel[0] = PHY_LANE_MUX_USB; udphy->lane_mux_sel[1] = PHY_LANE_MUX_USB; udphy->lane_mux_sel[2] = PHY_LANE_MUX_DP; udphy->lane_mux_sel[3] = PHY_LANE_MUX_DP; udphy->dp_aux_dout_sel = PHY_AUX_DP_DATA_POL_NORMAL; udphy->dp_aux_din_sel = PHY_AUX_DP_DATA_POL_NORMAL; } udphy->mode = UDPHY_MODE_DP_USB; return 0; } static int udphy_setup(struct rockchip_udphy *udphy) { const struct rockchip_udphy_cfg *cfg = udphy->cfgs; int ret = 0; if (cfg->combophy_init) { ret = cfg->combophy_init(udphy); if (ret) dev_err(udphy->dev, "failed to init usbdp combophy\n"); } return ret; } static int udphy_disable(struct rockchip_udphy *udphy) { const struct rockchip_udphy_cfg *cfg = udphy->cfgs; int i; for (i = 0; i < cfg->num_rsts; i++) reset_assert(&udphy->rsts[i]); return 0; } static int udphy_parse_lane_mux_data(struct rockchip_udphy *udphy, const struct device_node *np) { struct property *prop; int ret, i, len, num_lanes; prop = of_find_property(np, "rockchip,dp-lane-mux", &len); if (!prop) { dev_dbg(udphy->dev, "failed to find dp lane mux, following dp alt mode\n"); udphy->mode = UDPHY_MODE_USB; return 0; } num_lanes = len / sizeof(u32); if (num_lanes != 2 && num_lanes != 4) { dev_err(udphy->dev, "invalid number of lane mux\n"); return -EINVAL; } ret = of_read_u32_array(np, "rockchip,dp-lane-mux", udphy->dp_lane_sel, num_lanes); if (ret) { dev_err(udphy->dev, "get dp lane mux failed\n"); return -EINVAL; } for (i = 0; i < num_lanes; i++) { int j; if (udphy->dp_lane_sel[i] > 3) { dev_err(udphy->dev, "lane mux between 0 and 3, exceeding the range\n"); return -EINVAL; } udphy->lane_mux_sel[udphy->dp_lane_sel[i]] = PHY_LANE_MUX_DP; for (j = i + 1; j < num_lanes; j++) { if (udphy->dp_lane_sel[i] == udphy->dp_lane_sel[j]) { dev_err(udphy->dev, "set repeat lane mux value\n"); return -EINVAL; } } } udphy->mode = UDPHY_MODE_DP; if (num_lanes == 2) udphy->mode |= UDPHY_MODE_USB; return 0; } static int udphy_parse_dt(struct rockchip_udphy *udphy, struct udevice *dev) { const struct device_node *np = ofnode_to_np(dev_ofnode(dev)); enum usb_device_speed maximum_speed; int ret; udphy->u2phygrf = syscon_regmap_lookup_by_phandle(dev, "rockchip,u2phy-grf"); if (IS_ERR(udphy->u2phygrf)) { if (PTR_ERR(udphy->u2phygrf) == -ENODEV) { dev_warn(dev, "missing u2phy-grf dt node\n"); udphy->u2phygrf = NULL; } else { return PTR_ERR(udphy->u2phygrf); } } udphy->udphygrf = syscon_regmap_lookup_by_phandle(dev, "rockchip,usbdpphy-grf"); if (IS_ERR(udphy->udphygrf)) { if (PTR_ERR(udphy->udphygrf) == -ENODEV) { dev_warn(dev, "missing usbdpphy-grf dt node\n"); udphy->udphygrf = NULL; } else { return PTR_ERR(udphy->udphygrf); } } udphy->usbgrf = syscon_regmap_lookup_by_phandle(dev, "rockchip,usb-grf"); if (IS_ERR(udphy->usbgrf)) { if (PTR_ERR(udphy->usbgrf) == -ENODEV) { dev_warn(dev, "missing usb-grf dt node\n"); udphy->usbgrf = NULL; } else { return PTR_ERR(udphy->usbgrf); } } udphy->vogrf = syscon_regmap_lookup_by_phandle(dev, "rockchip,vo-grf"); if (IS_ERR(udphy->vogrf)) { if (PTR_ERR(udphy->vogrf) == -ENODEV) { dev_warn(dev, "missing vo-grf dt node\n"); udphy->vogrf = NULL; } else { return PTR_ERR(udphy->vogrf); } } ret = udphy_parse_lane_mux_data(udphy, np); if (ret) return ret; if (dev_read_prop(dev, "maximum-speed", NULL)) { maximum_speed = usb_get_maximum_speed(dev_ofnode(dev)); udphy->hs = maximum_speed <= USB_SPEED_HIGH ? true : false; } ret = udphy_clk_init(udphy, dev); if (ret) return ret; ret = udphy_reset_init(udphy, dev); if (ret) return ret; return 0; } static int udphy_power_on(struct rockchip_udphy *udphy, u8 mode) { int ret; if (!(udphy->mode & mode)) { dev_info(udphy->dev, "mode 0x%02x is not support\n", mode); return 0; } if (udphy->status == UDPHY_MODE_NONE) { udphy->mode_change = false; ret = udphy_setup(udphy); if (ret) return ret; if (udphy->mode & UDPHY_MODE_USB) udphy_u3_port_disable(udphy, false); } else if (udphy->mode_change) { udphy->mode_change = false; udphy->status = UDPHY_MODE_NONE; if (udphy->mode == UDPHY_MODE_DP) udphy_u3_port_disable(udphy, true); ret = udphy_disable(udphy); if (ret) return ret; ret = udphy_setup(udphy); if (ret) return ret; } udphy->status |= mode; return 0; } static int udphy_power_off(struct rockchip_udphy *udphy, u8 mode) { int ret; if (!(udphy->mode & mode)) { dev_info(udphy->dev, "mode 0x%02x is not supported\n", mode); return 0; } if (!udphy->status) return 0; udphy->status &= ~mode; if (udphy->status == UDPHY_MODE_NONE) { ret = udphy_disable(udphy); if (ret) return ret; } return 0; } static int rockchip_u3phy_init(struct phy *phy) { struct udevice *parent = phy->dev->parent; struct rockchip_udphy *udphy = dev_get_priv(parent); /* DP only or high-speed, disable U3 port */ if (!(udphy->mode & UDPHY_MODE_USB) || udphy->hs) { udphy_u3_port_disable(udphy, true); return 0; } return udphy_power_on(udphy, UDPHY_MODE_USB); } static int rockchip_u3phy_exit(struct phy *phy) { struct udevice *parent = phy->dev->parent; struct rockchip_udphy *udphy = dev_get_priv(parent); /* DP only or high-speed */ if (!(udphy->mode & UDPHY_MODE_USB) || udphy->hs) return 0; return udphy_power_off(udphy, UDPHY_MODE_USB); } static const struct phy_ops rockchip_u3phy_ops = { .init = rockchip_u3phy_init, .exit = rockchip_u3phy_exit, }; int rockchip_u3phy_uboot_init(void) { struct udevice *udev; struct rockchip_udphy *udphy; int ret; ret = uclass_get_device_by_driver(UCLASS_PHY, DM_DRIVER_GET(rockchip_udphy_u3_port), &udev); if (ret) { pr_err("%s: get u3-port failed: %d\n", __func__, ret); return ret; } /* DP only or high-speed, disable U3 port */ udphy = dev_get_priv(udev->parent); if (!(udphy->mode & UDPHY_MODE_USB) || udphy->hs) { udphy_u3_port_disable(udphy, true); return 0; } return udphy_power_on(udphy, UDPHY_MODE_USB); } static int rockchip_udphy_probe(struct udevice *dev) { const struct device_node *np = ofnode_to_np(dev_ofnode(dev)); struct rockchip_udphy *udphy = dev_get_priv(dev); const struct rockchip_udphy_cfg *phy_cfgs; int id, ret; udphy->dev = dev; id = of_alias_get_id(np, "usbdp"); if (id < 0) id = 0; udphy->id = id; phy_cfgs = (const struct rockchip_udphy_cfg *)dev_get_driver_data(dev); if (!phy_cfgs) { dev_err(dev, "unable to get phy_cfgs\n"); return -EINVAL; } udphy->cfgs = phy_cfgs; ret = regmap_init_mem(dev_ofnode(dev), &udphy->pma_regmap); if (ret) return ret; udphy->pma_regmap->ranges[0].start += UDPHY_PMA; ret = udphy_parse_dt(udphy, dev); if (ret) return ret; return 0; } static int rockchip_udphy_bind(struct udevice *parent) { struct udevice *child; ofnode subnode; const char *node_name; int ret; dev_for_each_subnode(subnode, parent) { if (!ofnode_valid(subnode)) { printf("%s: no subnode for %s", __func__, parent->name); return -ENXIO; } node_name = ofnode_get_name(subnode); debug("%s: subnode %s\n", __func__, node_name); /* if there is no match, continue */ if (strcasecmp(node_name, "usb3-port")) continue; /* node name is usb3-port */ ret = device_bind_driver_to_node(parent, "rockchip_udphy_u3_port", node_name, subnode, &child); if (ret) { printf("%s: '%s' cannot bind its driver\n", __func__, node_name); return ret; } } return 0; } static int rk3588_udphy_refclk_set(struct rockchip_udphy *udphy) { /* configure phy reference clock */ return __regmap_multi_reg_write(udphy->pma_regmap, rk3588_udphy_24m_refclk_cfg, ARRAY_SIZE(rk3588_udphy_24m_refclk_cfg)); } static int rk3588_udphy_status_check(struct rockchip_udphy *udphy) { unsigned int val; int ret; if (!(udphy->mode & UDPHY_MODE_USB)) return 0; /* LCPLL check */ ret = regmap_read_poll_timeout(udphy->pma_regmap, CMN_ANA_LCPLL_DONE_OFFSET, val, (val & CMN_ANA_LCPLL_AFC_DONE) && (val & CMN_ANA_LCPLL_LOCK_DONE), 200, 100); if (ret) { dev_err(udphy->dev, "cmn ana lcpll lock timeout\n"); return ret; } if (!udphy->flip) { ret = regmap_read_poll_timeout(udphy->pma_regmap, TRSV_LN0_MON_RX_CDR_DONE_OFFSET, val, val & TRSV_LN0_MON_RX_CDR_LOCK_DONE, 200, 100); if (ret) dev_err(udphy->dev, "trsv ln0 mon rx cdr lock timeout\n"); } else { ret = regmap_read_poll_timeout(udphy->pma_regmap, TRSV_LN2_MON_RX_CDR_DONE_OFFSET, val, val & TRSV_LN2_MON_RX_CDR_LOCK_DONE, 200, 100); if (ret) dev_err(udphy->dev, "trsv ln2 mon rx cdr lock timeout\n"); } return 0; } static int rk3588_udphy_init(struct rockchip_udphy *udphy) { const struct rockchip_udphy_cfg *cfg = udphy->cfgs; int ret; /* enable rx lfps for usb */ if (udphy->mode & UDPHY_MODE_USB) grfreg_write(udphy->udphygrf, &cfg->grfcfg.rx_lfps, true); /* Step 1: power on pma and deassert apb rstn */ grfreg_write(udphy->udphygrf, &cfg->grfcfg.low_pwrn, true); udphy_reset_deassert(udphy, "pma_apb"); udphy_reset_deassert(udphy, "pcs_apb"); /* Step 2: set init sequence and phy refclk */ ret = __regmap_multi_reg_write(udphy->pma_regmap, rk3588_udphy_init_sequence, ARRAY_SIZE(rk3588_udphy_init_sequence)); if (ret) { dev_err(udphy->dev, "init sequence set error %d\n", ret); goto assert_apb; } ret = rk3588_udphy_refclk_set(udphy); if (ret) { dev_err(udphy->dev, "refclk set error %d\n", ret); goto assert_apb; } /* Step 3: configure lane mux */ regmap_update_bits(udphy->pma_regmap, CMN_LANE_MUX_AND_EN_OFFSET, CMN_DP_LANE_MUX_ALL | CMN_DP_LANE_EN_ALL, FIELD_PREP(CMN_DP_LANE_MUX_N(3), udphy->lane_mux_sel[3]) | FIELD_PREP(CMN_DP_LANE_MUX_N(2), udphy->lane_mux_sel[2]) | FIELD_PREP(CMN_DP_LANE_MUX_N(1), udphy->lane_mux_sel[1]) | FIELD_PREP(CMN_DP_LANE_MUX_N(0), udphy->lane_mux_sel[0]) | FIELD_PREP(CMN_DP_LANE_EN_ALL, 0)); /* Step 4: deassert init rstn and wait for 200ns from datasheet */ if (udphy->mode & UDPHY_MODE_USB) udphy_reset_deassert(udphy, "init"); if (udphy->mode & UDPHY_MODE_DP) { regmap_update_bits(udphy->pma_regmap, CMN_DP_RSTN_OFFSET, CMN_DP_INIT_RSTN, FIELD_PREP(CMN_DP_INIT_RSTN, 0x1)); } udelay(1); /* Step 5: deassert cmn/lane rstn */ if (udphy->mode & UDPHY_MODE_USB) { udphy_reset_deassert(udphy, "cmn"); udphy_reset_deassert(udphy, "lane"); } /* Step 6: wait for lock done of pll */ ret = rk3588_udphy_status_check(udphy); if (ret) goto assert_phy; return 0; assert_phy: udphy_reset_assert(udphy, "init"); udphy_reset_assert(udphy, "cmn"); udphy_reset_assert(udphy, "lane"); assert_apb: udphy_reset_assert(udphy, "pma_apb"); udphy_reset_assert(udphy, "pcs_apb"); return ret; } static const char * const rk3588_udphy_rst_l[] = { "init", "cmn", "lane", "pcs_apb", "pma_apb" }; static const struct rockchip_udphy_cfg rk3588_udphy_cfgs = { .num_rsts = ARRAY_SIZE(rk3588_udphy_rst_l), .rst_list = rk3588_udphy_rst_l, .grfcfg = { /* u2phy-grf */ .bvalid_phy_con = { 0x0008, 1, 0, 0x2, 0x3 }, .bvalid_grf_con = { 0x0010, 3, 2, 0x2, 0x3 }, /* usb-grf */ .usb3otg0_cfg = { 0x001c, 15, 0, 0x1100, 0x0188 }, .usb3otg1_cfg = { 0x0034, 15, 0, 0x1100, 0x0188 }, /* usbdpphy-grf */ .low_pwrn = { 0x0004, 13, 13, 0, 1 }, .rx_lfps = { 0x0004, 14, 14, 0, 1 }, }, .combophy_init = rk3588_udphy_init, }; static const struct udevice_id rockchip_udphy_dt_match[] = { { .compatible = "rockchip,rk3588-usbdp-phy", .data = (ulong)&rk3588_udphy_cfgs }, { /* sentinel */ } }; U_BOOT_DRIVER(rockchip_udphy_u3_port) = { .name = "rockchip_udphy_u3_port", .id = UCLASS_PHY, .ops = &rockchip_u3phy_ops, }; U_BOOT_DRIVER(rockchip_udphy) = { .name = "rockchip_udphy", .id = UCLASS_PHY, .of_match = rockchip_udphy_dt_match, .probe = rockchip_udphy_probe, .bind = rockchip_udphy_bind, .priv_auto = sizeof(struct rockchip_udphy), };