Jagan Teki | d3c3828 | 2018-05-07 13:03:26 +0530 | [diff] [blame] | 1 | /* |
| 2 | * Allwinner sun4i USB PHY driver |
| 3 | * |
| 4 | * Copyright (C) 2017 Jagan Teki <jagan@amarulasolutions.com> |
| 5 | * Copyright (C) 2015 Hans de Goede <hdegoede@redhat.com> |
| 6 | * Copyright (C) 2014 Roman Byshko <rbyshko@gmail.com> |
| 7 | * |
| 8 | * Modelled arch/arm/mach-sunxi/usb_phy.c to compatible with generic-phy. |
| 9 | * |
| 10 | * SPDX-License-Identifier: GPL-2.0+ |
| 11 | */ |
| 12 | |
| 13 | #include <common.h> |
Jagan Teki | 0dc3333 | 2018-08-06 12:16:39 +0530 | [diff] [blame] | 14 | #include <clk.h> |
Jagan Teki | d3c3828 | 2018-05-07 13:03:26 +0530 | [diff] [blame] | 15 | #include <dm.h> |
| 16 | #include <dm/device.h> |
| 17 | #include <generic-phy.h> |
Jagan Teki | 21fc42d | 2018-05-07 13:03:27 +0530 | [diff] [blame] | 18 | #include <phy-sun4i-usb.h> |
Jagan Teki | 0dc3333 | 2018-08-06 12:16:39 +0530 | [diff] [blame] | 19 | #include <reset.h> |
Jagan Teki | d3c3828 | 2018-05-07 13:03:26 +0530 | [diff] [blame] | 20 | #include <asm/gpio.h> |
| 21 | #include <asm/io.h> |
| 22 | #include <asm/arch/clock.h> |
| 23 | #include <asm/arch/cpu.h> |
| 24 | |
| 25 | #define REG_ISCR 0x00 |
| 26 | #define REG_PHYCTL_A10 0x04 |
| 27 | #define REG_PHYBIST 0x08 |
| 28 | #define REG_PHYTUNE 0x0c |
| 29 | #define REG_PHYCTL_A33 0x10 |
| 30 | #define REG_PHY_OTGCTL 0x20 |
| 31 | #define REG_PMU_UNK1 0x10 |
| 32 | |
| 33 | /* Common Control Bits for Both PHYs */ |
| 34 | #define PHY_PLL_BW 0x03 |
| 35 | #define PHY_RES45_CAL_EN 0x0c |
| 36 | |
| 37 | /* Private Control Bits for Each PHY */ |
| 38 | #define PHY_TX_AMPLITUDE_TUNE 0x20 |
| 39 | #define PHY_TX_SLEWRATE_TUNE 0x22 |
| 40 | #define PHY_DISCON_TH_SEL 0x2a |
Jagan Teki | 37671e1 | 2018-05-07 13:03:37 +0530 | [diff] [blame] | 41 | #define PHY_SQUELCH_DETECT 0x3c |
Jagan Teki | d3c3828 | 2018-05-07 13:03:26 +0530 | [diff] [blame] | 42 | |
| 43 | #define PHYCTL_DATA BIT(7) |
| 44 | #define OTGCTL_ROUTE_MUSB BIT(0) |
| 45 | |
| 46 | #define PHY_TX_RATE BIT(4) |
| 47 | #define PHY_TX_MAGNITUDE BIT(2) |
| 48 | #define PHY_TX_AMPLITUDE_LEN 5 |
| 49 | |
| 50 | #define PHY_RES45_CAL_DATA BIT(0) |
| 51 | #define PHY_RES45_CAL_LEN 1 |
| 52 | #define PHY_DISCON_TH_LEN 2 |
| 53 | |
| 54 | #define SUNXI_AHB_ICHR8_EN BIT(10) |
| 55 | #define SUNXI_AHB_INCR4_BURST_EN BIT(9) |
| 56 | #define SUNXI_AHB_INCRX_ALIGN_EN BIT(8) |
| 57 | #define SUNXI_ULPI_BYPASS_EN BIT(0) |
| 58 | |
Jagan Teki | 05a7b9f | 2018-05-07 13:03:30 +0530 | [diff] [blame] | 59 | /* A83T specific control bits for PHY0 */ |
| 60 | #define PHY_CTL_VBUSVLDEXT BIT(5) |
| 61 | #define PHY_CTL_SIDDQ BIT(3) |
| 62 | |
| 63 | /* A83T specific control bits for PHY2 HSIC */ |
| 64 | #define SUNXI_EHCI_HS_FORCE BIT(20) |
| 65 | #define SUNXI_HSIC_CONNECT_INT BIT(16) |
| 66 | #define SUNXI_HSIC BIT(1) |
| 67 | |
Jagan Teki | d3c3828 | 2018-05-07 13:03:26 +0530 | [diff] [blame] | 68 | #define MAX_PHYS 4 |
| 69 | |
| 70 | enum sun4i_usb_phy_type { |
Jagan Teki | 5a3000f | 2018-05-07 13:03:31 +0530 | [diff] [blame] | 71 | sun4i_a10_phy, |
Jagan Teki | 1cbc80c | 2018-05-07 13:03:32 +0530 | [diff] [blame] | 72 | sun6i_a31_phy, |
Jagan Teki | 0e574bb | 2018-05-07 13:03:33 +0530 | [diff] [blame] | 73 | sun8i_a33_phy, |
Jagan Teki | 05a7b9f | 2018-05-07 13:03:30 +0530 | [diff] [blame] | 74 | sun8i_a83t_phy, |
Jagan Teki | c1b0e5a | 2018-05-07 13:03:28 +0530 | [diff] [blame] | 75 | sun8i_h3_phy, |
Jagan Teki | ac4bab4 | 2018-05-07 13:03:29 +0530 | [diff] [blame] | 76 | sun8i_v3s_phy, |
Jagan Teki | d3c3828 | 2018-05-07 13:03:26 +0530 | [diff] [blame] | 77 | sun50i_a64_phy, |
| 78 | }; |
| 79 | |
| 80 | struct sun4i_usb_phy_cfg { |
| 81 | int num_phys; |
| 82 | enum sun4i_usb_phy_type type; |
| 83 | u32 disc_thresh; |
| 84 | u8 phyctl_offset; |
Jagan Teki | 0dc3333 | 2018-08-06 12:16:39 +0530 | [diff] [blame] | 85 | bool dedicated_clocks; |
Jagan Teki | d3c3828 | 2018-05-07 13:03:26 +0530 | [diff] [blame] | 86 | bool enable_pmu_unk1; |
| 87 | bool phy0_dual_route; |
| 88 | }; |
| 89 | |
| 90 | struct sun4i_usb_phy_info { |
| 91 | const char *gpio_vbus; |
| 92 | const char *gpio_vbus_det; |
| 93 | const char *gpio_id_det; |
Jagan Teki | d3c3828 | 2018-05-07 13:03:26 +0530 | [diff] [blame] | 94 | } phy_info[] = { |
| 95 | { |
| 96 | .gpio_vbus = CONFIG_USB0_VBUS_PIN, |
| 97 | .gpio_vbus_det = CONFIG_USB0_VBUS_DET, |
| 98 | .gpio_id_det = CONFIG_USB0_ID_DET, |
Jagan Teki | d3c3828 | 2018-05-07 13:03:26 +0530 | [diff] [blame] | 99 | }, |
| 100 | { |
| 101 | .gpio_vbus = CONFIG_USB1_VBUS_PIN, |
| 102 | .gpio_vbus_det = NULL, |
| 103 | .gpio_id_det = NULL, |
Jagan Teki | d3c3828 | 2018-05-07 13:03:26 +0530 | [diff] [blame] | 104 | }, |
| 105 | { |
| 106 | .gpio_vbus = CONFIG_USB2_VBUS_PIN, |
| 107 | .gpio_vbus_det = NULL, |
| 108 | .gpio_id_det = NULL, |
Jagan Teki | d3c3828 | 2018-05-07 13:03:26 +0530 | [diff] [blame] | 109 | }, |
| 110 | { |
| 111 | .gpio_vbus = CONFIG_USB3_VBUS_PIN, |
| 112 | .gpio_vbus_det = NULL, |
| 113 | .gpio_id_det = NULL, |
Jagan Teki | d3c3828 | 2018-05-07 13:03:26 +0530 | [diff] [blame] | 114 | }, |
| 115 | }; |
| 116 | |
| 117 | struct sun4i_usb_phy_plat { |
| 118 | void __iomem *pmu; |
| 119 | int power_on_count; |
| 120 | int gpio_vbus; |
| 121 | int gpio_vbus_det; |
| 122 | int gpio_id_det; |
Jagan Teki | 0dc3333 | 2018-08-06 12:16:39 +0530 | [diff] [blame] | 123 | struct clk clocks; |
| 124 | struct reset_ctl resets; |
Jagan Teki | d3c3828 | 2018-05-07 13:03:26 +0530 | [diff] [blame] | 125 | int id; |
| 126 | }; |
| 127 | |
| 128 | struct sun4i_usb_phy_data { |
| 129 | void __iomem *base; |
Jagan Teki | d3c3828 | 2018-05-07 13:03:26 +0530 | [diff] [blame] | 130 | const struct sun4i_usb_phy_cfg *cfg; |
| 131 | struct sun4i_usb_phy_plat *usb_phy; |
| 132 | }; |
| 133 | |
| 134 | static int initial_usb_scan_delay = CONFIG_INITIAL_USB_SCAN_DELAY; |
| 135 | |
| 136 | static void sun4i_usb_phy_write(struct phy *phy, u32 addr, u32 data, int len) |
| 137 | { |
| 138 | struct sun4i_usb_phy_data *phy_data = dev_get_priv(phy->dev); |
| 139 | struct sun4i_usb_phy_plat *usb_phy = &phy_data->usb_phy[phy->id]; |
| 140 | u32 temp, usbc_bit = BIT(usb_phy->id * 2); |
| 141 | void __iomem *phyctl = phy_data->base + phy_data->cfg->phyctl_offset; |
| 142 | int i; |
| 143 | |
| 144 | if (phy_data->cfg->phyctl_offset == REG_PHYCTL_A33) { |
| 145 | /* SoCs newer than A33 need us to set phyctl to 0 explicitly */ |
| 146 | writel(0, phyctl); |
| 147 | } |
| 148 | |
| 149 | for (i = 0; i < len; i++) { |
| 150 | temp = readl(phyctl); |
| 151 | |
| 152 | /* clear the address portion */ |
| 153 | temp &= ~(0xff << 8); |
| 154 | |
| 155 | /* set the address */ |
| 156 | temp |= ((addr + i) << 8); |
| 157 | writel(temp, phyctl); |
| 158 | |
| 159 | /* set the data bit and clear usbc bit*/ |
| 160 | temp = readb(phyctl); |
| 161 | if (data & 0x1) |
| 162 | temp |= PHYCTL_DATA; |
| 163 | else |
| 164 | temp &= ~PHYCTL_DATA; |
| 165 | temp &= ~usbc_bit; |
| 166 | writeb(temp, phyctl); |
| 167 | |
| 168 | /* pulse usbc_bit */ |
| 169 | temp = readb(phyctl); |
| 170 | temp |= usbc_bit; |
| 171 | writeb(temp, phyctl); |
| 172 | |
| 173 | temp = readb(phyctl); |
| 174 | temp &= ~usbc_bit; |
| 175 | writeb(temp, phyctl); |
| 176 | |
| 177 | data >>= 1; |
| 178 | } |
| 179 | } |
| 180 | |
Jagan Teki | 05a7b9f | 2018-05-07 13:03:30 +0530 | [diff] [blame] | 181 | static void sun4i_usb_phy_passby(struct phy *phy, bool enable) |
Jagan Teki | d3c3828 | 2018-05-07 13:03:26 +0530 | [diff] [blame] | 182 | { |
Jagan Teki | 05a7b9f | 2018-05-07 13:03:30 +0530 | [diff] [blame] | 183 | struct sun4i_usb_phy_data *data = dev_get_priv(phy->dev); |
| 184 | struct sun4i_usb_phy_plat *usb_phy = &data->usb_phy[phy->id]; |
Jagan Teki | d3c3828 | 2018-05-07 13:03:26 +0530 | [diff] [blame] | 185 | u32 bits, reg_value; |
| 186 | |
| 187 | if (!usb_phy->pmu) |
| 188 | return; |
| 189 | |
| 190 | bits = SUNXI_AHB_ICHR8_EN | SUNXI_AHB_INCR4_BURST_EN | |
| 191 | SUNXI_AHB_INCRX_ALIGN_EN | SUNXI_ULPI_BYPASS_EN; |
Jagan Teki | 05a7b9f | 2018-05-07 13:03:30 +0530 | [diff] [blame] | 192 | |
| 193 | /* A83T USB2 is HSIC */ |
| 194 | if (data->cfg->type == sun8i_a83t_phy && usb_phy->id == 2) |
| 195 | bits |= SUNXI_EHCI_HS_FORCE | SUNXI_HSIC_CONNECT_INT | |
| 196 | SUNXI_HSIC; |
| 197 | |
Jagan Teki | d3c3828 | 2018-05-07 13:03:26 +0530 | [diff] [blame] | 198 | reg_value = readl(usb_phy->pmu); |
| 199 | |
| 200 | if (enable) |
| 201 | reg_value |= bits; |
| 202 | else |
| 203 | reg_value &= ~bits; |
| 204 | |
| 205 | writel(reg_value, usb_phy->pmu); |
| 206 | } |
| 207 | |
| 208 | static int sun4i_usb_phy_power_on(struct phy *phy) |
| 209 | { |
| 210 | struct sun4i_usb_phy_data *data = dev_get_priv(phy->dev); |
| 211 | struct sun4i_usb_phy_plat *usb_phy = &data->usb_phy[phy->id]; |
| 212 | |
| 213 | if (initial_usb_scan_delay) { |
| 214 | mdelay(initial_usb_scan_delay); |
| 215 | initial_usb_scan_delay = 0; |
| 216 | } |
| 217 | |
| 218 | usb_phy->power_on_count++; |
| 219 | if (usb_phy->power_on_count != 1) |
| 220 | return 0; |
| 221 | |
| 222 | if (usb_phy->gpio_vbus >= 0) |
| 223 | gpio_set_value(usb_phy->gpio_vbus, SUNXI_GPIO_PULL_UP); |
| 224 | |
| 225 | return 0; |
| 226 | } |
| 227 | |
| 228 | static int sun4i_usb_phy_power_off(struct phy *phy) |
| 229 | { |
| 230 | struct sun4i_usb_phy_data *data = dev_get_priv(phy->dev); |
| 231 | struct sun4i_usb_phy_plat *usb_phy = &data->usb_phy[phy->id]; |
| 232 | |
| 233 | usb_phy->power_on_count--; |
| 234 | if (usb_phy->power_on_count != 0) |
| 235 | return 0; |
| 236 | |
| 237 | if (usb_phy->gpio_vbus >= 0) |
| 238 | gpio_set_value(usb_phy->gpio_vbus, SUNXI_GPIO_PULL_DISABLE); |
| 239 | |
| 240 | return 0; |
| 241 | } |
| 242 | |
| 243 | static void sun4i_usb_phy0_reroute(struct sun4i_usb_phy_data *data, bool id_det) |
| 244 | { |
| 245 | u32 regval; |
| 246 | |
| 247 | regval = readl(data->base + REG_PHY_OTGCTL); |
| 248 | if (!id_det) { |
| 249 | /* Host mode. Route phy0 to EHCI/OHCI */ |
| 250 | regval &= ~OTGCTL_ROUTE_MUSB; |
| 251 | } else { |
| 252 | /* Peripheral mode. Route phy0 to MUSB */ |
| 253 | regval |= OTGCTL_ROUTE_MUSB; |
| 254 | } |
| 255 | writel(regval, data->base + REG_PHY_OTGCTL); |
| 256 | } |
| 257 | |
| 258 | static int sun4i_usb_phy_init(struct phy *phy) |
| 259 | { |
| 260 | struct sun4i_usb_phy_data *data = dev_get_priv(phy->dev); |
| 261 | struct sun4i_usb_phy_plat *usb_phy = &data->usb_phy[phy->id]; |
| 262 | u32 val; |
Jagan Teki | 0dc3333 | 2018-08-06 12:16:39 +0530 | [diff] [blame] | 263 | int ret; |
Jagan Teki | d3c3828 | 2018-05-07 13:03:26 +0530 | [diff] [blame] | 264 | |
Jagan Teki | 0dc3333 | 2018-08-06 12:16:39 +0530 | [diff] [blame] | 265 | ret = clk_enable(&usb_phy->clocks); |
| 266 | if (ret) { |
| 267 | dev_err(dev, "failed to enable usb_%ldphy clock\n", phy->id); |
| 268 | return ret; |
| 269 | } |
| 270 | |
| 271 | ret = reset_deassert(&usb_phy->resets); |
| 272 | if (ret) { |
| 273 | dev_err(dev, "failed to deassert usb_%ldreset reset\n", phy->id); |
| 274 | return ret; |
| 275 | } |
Jagan Teki | d3c3828 | 2018-05-07 13:03:26 +0530 | [diff] [blame] | 276 | |
Jagan Teki | 05a7b9f | 2018-05-07 13:03:30 +0530 | [diff] [blame] | 277 | if (data->cfg->type == sun8i_a83t_phy) { |
| 278 | if (phy->id == 0) { |
| 279 | val = readl(data->base + data->cfg->phyctl_offset); |
| 280 | val |= PHY_CTL_VBUSVLDEXT; |
| 281 | val &= ~PHY_CTL_SIDDQ; |
| 282 | writel(val, data->base + data->cfg->phyctl_offset); |
| 283 | } |
| 284 | } else { |
| 285 | if (usb_phy->pmu && data->cfg->enable_pmu_unk1) { |
| 286 | val = readl(usb_phy->pmu + REG_PMU_UNK1); |
| 287 | writel(val & ~2, usb_phy->pmu + REG_PMU_UNK1); |
| 288 | } |
Jagan Teki | d3c3828 | 2018-05-07 13:03:26 +0530 | [diff] [blame] | 289 | |
Jagan Teki | 05a7b9f | 2018-05-07 13:03:30 +0530 | [diff] [blame] | 290 | if (usb_phy->id == 0) |
| 291 | sun4i_usb_phy_write(phy, PHY_RES45_CAL_EN, |
| 292 | PHY_RES45_CAL_DATA, |
| 293 | PHY_RES45_CAL_LEN); |
Jagan Teki | d3c3828 | 2018-05-07 13:03:26 +0530 | [diff] [blame] | 294 | |
Jagan Teki | 05a7b9f | 2018-05-07 13:03:30 +0530 | [diff] [blame] | 295 | /* Adjust PHY's magnitude and rate */ |
| 296 | sun4i_usb_phy_write(phy, PHY_TX_AMPLITUDE_TUNE, |
| 297 | PHY_TX_MAGNITUDE | PHY_TX_RATE, |
| 298 | PHY_TX_AMPLITUDE_LEN); |
Jagan Teki | d3c3828 | 2018-05-07 13:03:26 +0530 | [diff] [blame] | 299 | |
Jagan Teki | 05a7b9f | 2018-05-07 13:03:30 +0530 | [diff] [blame] | 300 | /* Disconnect threshold adjustment */ |
| 301 | sun4i_usb_phy_write(phy, PHY_DISCON_TH_SEL, |
| 302 | data->cfg->disc_thresh, PHY_DISCON_TH_LEN); |
| 303 | } |
Jagan Teki | d3c3828 | 2018-05-07 13:03:26 +0530 | [diff] [blame] | 304 | |
Jagan Teki | b8cbf9d | 2018-07-20 12:34:20 +0530 | [diff] [blame] | 305 | sun4i_usb_phy_passby(phy, true); |
Jagan Teki | d3c3828 | 2018-05-07 13:03:26 +0530 | [diff] [blame] | 306 | |
| 307 | sun4i_usb_phy0_reroute(data, true); |
| 308 | |
| 309 | return 0; |
| 310 | } |
| 311 | |
| 312 | static int sun4i_usb_phy_exit(struct phy *phy) |
| 313 | { |
| 314 | struct sun4i_usb_phy_data *data = dev_get_priv(phy->dev); |
| 315 | struct sun4i_usb_phy_plat *usb_phy = &data->usb_phy[phy->id]; |
Jagan Teki | 0dc3333 | 2018-08-06 12:16:39 +0530 | [diff] [blame] | 316 | int ret; |
Jagan Teki | d3c3828 | 2018-05-07 13:03:26 +0530 | [diff] [blame] | 317 | |
Jagan Teki | 05a7b9f | 2018-05-07 13:03:30 +0530 | [diff] [blame] | 318 | if (phy->id == 0) { |
| 319 | if (data->cfg->type == sun8i_a83t_phy) { |
| 320 | void __iomem *phyctl = data->base + |
| 321 | data->cfg->phyctl_offset; |
| 322 | |
| 323 | writel(readl(phyctl) | PHY_CTL_SIDDQ, phyctl); |
| 324 | } |
| 325 | } |
| 326 | |
| 327 | sun4i_usb_phy_passby(phy, false); |
Jagan Teki | d3c3828 | 2018-05-07 13:03:26 +0530 | [diff] [blame] | 328 | |
Jagan Teki | 0dc3333 | 2018-08-06 12:16:39 +0530 | [diff] [blame] | 329 | ret = clk_disable(&usb_phy->clocks); |
| 330 | if (ret) { |
| 331 | dev_err(dev, "failed to disable usb_%ldphy clock\n", phy->id); |
| 332 | return ret; |
| 333 | } |
| 334 | |
| 335 | ret = reset_assert(&usb_phy->resets); |
| 336 | if (ret) { |
| 337 | dev_err(dev, "failed to assert usb_%ldreset reset\n", phy->id); |
| 338 | return ret; |
| 339 | } |
Jagan Teki | d3c3828 | 2018-05-07 13:03:26 +0530 | [diff] [blame] | 340 | |
| 341 | return 0; |
| 342 | } |
| 343 | |
| 344 | static int sun4i_usb_phy_xlate(struct phy *phy, |
| 345 | struct ofnode_phandle_args *args) |
| 346 | { |
| 347 | struct sun4i_usb_phy_data *data = dev_get_priv(phy->dev); |
| 348 | |
| 349 | if (args->args_count >= data->cfg->num_phys) |
| 350 | return -EINVAL; |
| 351 | |
| 352 | if (args->args_count) |
| 353 | phy->id = args->args[0]; |
| 354 | else |
| 355 | phy->id = 0; |
| 356 | |
| 357 | debug("%s: phy_id = %ld\n", __func__, phy->id); |
| 358 | return 0; |
| 359 | } |
| 360 | |
Jagan Teki | 21fc42d | 2018-05-07 13:03:27 +0530 | [diff] [blame] | 361 | int sun4i_usb_phy_vbus_detect(struct phy *phy) |
| 362 | { |
| 363 | struct sun4i_usb_phy_data *data = dev_get_priv(phy->dev); |
| 364 | struct sun4i_usb_phy_plat *usb_phy = &data->usb_phy[phy->id]; |
| 365 | int err, retries = 3; |
| 366 | |
| 367 | debug("%s: id_det = %d\n", __func__, usb_phy->gpio_id_det); |
| 368 | |
| 369 | if (usb_phy->gpio_vbus_det < 0) |
| 370 | return usb_phy->gpio_vbus_det; |
| 371 | |
| 372 | err = gpio_get_value(usb_phy->gpio_vbus_det); |
| 373 | /* |
| 374 | * Vbus may have been provided by the board and just been turned of |
| 375 | * some milliseconds ago on reset, what we're measuring then is a |
| 376 | * residual charge on Vbus, sleep a bit and try again. |
| 377 | */ |
| 378 | while (err > 0 && retries--) { |
| 379 | mdelay(100); |
| 380 | err = gpio_get_value(usb_phy->gpio_vbus_det); |
| 381 | } |
| 382 | |
| 383 | return err; |
| 384 | } |
| 385 | |
| 386 | int sun4i_usb_phy_id_detect(struct phy *phy) |
| 387 | { |
| 388 | struct sun4i_usb_phy_data *data = dev_get_priv(phy->dev); |
| 389 | struct sun4i_usb_phy_plat *usb_phy = &data->usb_phy[phy->id]; |
| 390 | |
| 391 | debug("%s: id_det = %d\n", __func__, usb_phy->gpio_id_det); |
| 392 | |
| 393 | if (usb_phy->gpio_id_det < 0) |
| 394 | return usb_phy->gpio_id_det; |
| 395 | |
| 396 | return gpio_get_value(usb_phy->gpio_id_det); |
| 397 | } |
| 398 | |
Jagan Teki | 37671e1 | 2018-05-07 13:03:37 +0530 | [diff] [blame] | 399 | void sun4i_usb_phy_set_squelch_detect(struct phy *phy, bool enabled) |
| 400 | { |
| 401 | sun4i_usb_phy_write(phy, PHY_SQUELCH_DETECT, enabled ? 0 : 2, 2); |
| 402 | } |
| 403 | |
Jagan Teki | d3c3828 | 2018-05-07 13:03:26 +0530 | [diff] [blame] | 404 | static struct phy_ops sun4i_usb_phy_ops = { |
| 405 | .of_xlate = sun4i_usb_phy_xlate, |
| 406 | .init = sun4i_usb_phy_init, |
| 407 | .power_on = sun4i_usb_phy_power_on, |
| 408 | .power_off = sun4i_usb_phy_power_off, |
| 409 | .exit = sun4i_usb_phy_exit, |
| 410 | }; |
| 411 | |
| 412 | static int sun4i_usb_phy_probe(struct udevice *dev) |
| 413 | { |
| 414 | struct sun4i_usb_phy_plat *plat = dev_get_platdata(dev); |
| 415 | struct sun4i_usb_phy_data *data = dev_get_priv(dev); |
| 416 | int i, ret; |
| 417 | |
| 418 | data->cfg = (const struct sun4i_usb_phy_cfg *)dev_get_driver_data(dev); |
| 419 | if (!data->cfg) |
| 420 | return -EINVAL; |
| 421 | |
| 422 | data->base = (void __iomem *)devfdt_get_addr_name(dev, "phy_ctrl"); |
| 423 | if (IS_ERR(data->base)) |
| 424 | return PTR_ERR(data->base); |
| 425 | |
Jagan Teki | d3c3828 | 2018-05-07 13:03:26 +0530 | [diff] [blame] | 426 | data->usb_phy = plat; |
| 427 | for (i = 0; i < data->cfg->num_phys; i++) { |
| 428 | struct sun4i_usb_phy_plat *phy = &plat[i]; |
| 429 | struct sun4i_usb_phy_info *info = &phy_info[i]; |
| 430 | char name[16]; |
| 431 | |
| 432 | phy->gpio_vbus = sunxi_name_to_gpio(info->gpio_vbus); |
| 433 | if (phy->gpio_vbus >= 0) { |
| 434 | ret = gpio_request(phy->gpio_vbus, "usb_vbus"); |
| 435 | if (ret) |
| 436 | return ret; |
| 437 | ret = gpio_direction_output(phy->gpio_vbus, 0); |
| 438 | if (ret) |
| 439 | return ret; |
| 440 | } |
| 441 | |
| 442 | phy->gpio_vbus_det = sunxi_name_to_gpio(info->gpio_vbus_det); |
| 443 | if (phy->gpio_vbus_det >= 0) { |
| 444 | ret = gpio_request(phy->gpio_vbus_det, "usb_vbus_det"); |
| 445 | if (ret) |
| 446 | return ret; |
| 447 | ret = gpio_direction_input(phy->gpio_vbus_det); |
| 448 | if (ret) |
| 449 | return ret; |
| 450 | } |
| 451 | |
| 452 | phy->gpio_id_det = sunxi_name_to_gpio(info->gpio_id_det); |
| 453 | if (phy->gpio_id_det >= 0) { |
| 454 | ret = gpio_request(phy->gpio_id_det, "usb_id_det"); |
| 455 | if (ret) |
| 456 | return ret; |
| 457 | ret = gpio_direction_input(phy->gpio_id_det); |
| 458 | if (ret) |
| 459 | return ret; |
| 460 | sunxi_gpio_set_pull(phy->gpio_id_det, SUNXI_GPIO_PULL_UP); |
| 461 | } |
| 462 | |
Jagan Teki | 0dc3333 | 2018-08-06 12:16:39 +0530 | [diff] [blame] | 463 | if (data->cfg->dedicated_clocks) |
| 464 | snprintf(name, sizeof(name), "usb%d_phy", i); |
| 465 | else |
| 466 | strlcpy(name, "usb_phy", sizeof(name)); |
| 467 | |
| 468 | ret = clk_get_by_name(dev, name, &phy->clocks); |
| 469 | if (ret) { |
| 470 | dev_err(dev, "failed to get usb%d_phy clock phandle\n", i); |
| 471 | return ret; |
| 472 | } |
| 473 | |
| 474 | snprintf(name, sizeof(name), "usb%d_reset", i); |
| 475 | ret = reset_get_by_name(dev, name, &phy->resets); |
| 476 | if (ret) { |
| 477 | dev_err(dev, "failed to get usb%d_reset reset phandle\n", i); |
| 478 | return ret; |
| 479 | } |
| 480 | |
Jagan Teki | d3c3828 | 2018-05-07 13:03:26 +0530 | [diff] [blame] | 481 | if (i || data->cfg->phy0_dual_route) { |
| 482 | snprintf(name, sizeof(name), "pmu%d", i); |
| 483 | phy->pmu = (void __iomem *)devfdt_get_addr_name(dev, name); |
| 484 | if (IS_ERR(phy->pmu)) |
| 485 | return PTR_ERR(phy->pmu); |
| 486 | } |
| 487 | |
| 488 | phy->id = i; |
Jagan Teki | d3c3828 | 2018-05-07 13:03:26 +0530 | [diff] [blame] | 489 | }; |
| 490 | |
Jagan Teki | d3c3828 | 2018-05-07 13:03:26 +0530 | [diff] [blame] | 491 | debug("Allwinner Sun4I USB PHY driver loaded\n"); |
| 492 | return 0; |
| 493 | } |
| 494 | |
Jagan Teki | 5a3000f | 2018-05-07 13:03:31 +0530 | [diff] [blame] | 495 | static const struct sun4i_usb_phy_cfg sun4i_a10_cfg = { |
| 496 | .num_phys = 3, |
| 497 | .type = sun4i_a10_phy, |
| 498 | .disc_thresh = 3, |
| 499 | .phyctl_offset = REG_PHYCTL_A10, |
Jagan Teki | 0dc3333 | 2018-08-06 12:16:39 +0530 | [diff] [blame] | 500 | .dedicated_clocks = false, |
Jagan Teki | 5a3000f | 2018-05-07 13:03:31 +0530 | [diff] [blame] | 501 | .enable_pmu_unk1 = false, |
| 502 | }; |
| 503 | |
| 504 | static const struct sun4i_usb_phy_cfg sun5i_a13_cfg = { |
| 505 | .num_phys = 2, |
| 506 | .type = sun4i_a10_phy, |
| 507 | .disc_thresh = 2, |
| 508 | .phyctl_offset = REG_PHYCTL_A10, |
Jagan Teki | 0dc3333 | 2018-08-06 12:16:39 +0530 | [diff] [blame] | 509 | .dedicated_clocks = false, |
Jagan Teki | 5a3000f | 2018-05-07 13:03:31 +0530 | [diff] [blame] | 510 | .enable_pmu_unk1 = false, |
| 511 | }; |
| 512 | |
Jagan Teki | 1cbc80c | 2018-05-07 13:03:32 +0530 | [diff] [blame] | 513 | static const struct sun4i_usb_phy_cfg sun6i_a31_cfg = { |
| 514 | .num_phys = 3, |
| 515 | .type = sun6i_a31_phy, |
| 516 | .disc_thresh = 3, |
| 517 | .phyctl_offset = REG_PHYCTL_A10, |
Jagan Teki | 0dc3333 | 2018-08-06 12:16:39 +0530 | [diff] [blame] | 518 | .dedicated_clocks = true, |
Jagan Teki | 1cbc80c | 2018-05-07 13:03:32 +0530 | [diff] [blame] | 519 | .enable_pmu_unk1 = false, |
| 520 | }; |
| 521 | |
Jagan Teki | 5a3000f | 2018-05-07 13:03:31 +0530 | [diff] [blame] | 522 | static const struct sun4i_usb_phy_cfg sun7i_a20_cfg = { |
| 523 | .num_phys = 3, |
| 524 | .type = sun4i_a10_phy, |
| 525 | .disc_thresh = 2, |
| 526 | .phyctl_offset = REG_PHYCTL_A10, |
Jagan Teki | 0dc3333 | 2018-08-06 12:16:39 +0530 | [diff] [blame] | 527 | .dedicated_clocks = false, |
Jagan Teki | 5a3000f | 2018-05-07 13:03:31 +0530 | [diff] [blame] | 528 | .enable_pmu_unk1 = false, |
| 529 | }; |
| 530 | |
Jagan Teki | 00f9f6b | 2018-05-07 13:03:34 +0530 | [diff] [blame] | 531 | static const struct sun4i_usb_phy_cfg sun8i_a23_cfg = { |
| 532 | .num_phys = 2, |
| 533 | .type = sun4i_a10_phy, |
| 534 | .disc_thresh = 3, |
| 535 | .phyctl_offset = REG_PHYCTL_A10, |
Jagan Teki | 0dc3333 | 2018-08-06 12:16:39 +0530 | [diff] [blame] | 536 | .dedicated_clocks = true, |
Jagan Teki | 00f9f6b | 2018-05-07 13:03:34 +0530 | [diff] [blame] | 537 | .enable_pmu_unk1 = false, |
| 538 | }; |
| 539 | |
Jagan Teki | 0e574bb | 2018-05-07 13:03:33 +0530 | [diff] [blame] | 540 | static const struct sun4i_usb_phy_cfg sun8i_a33_cfg = { |
| 541 | .num_phys = 2, |
| 542 | .type = sun8i_a33_phy, |
| 543 | .disc_thresh = 3, |
| 544 | .phyctl_offset = REG_PHYCTL_A33, |
Jagan Teki | 0dc3333 | 2018-08-06 12:16:39 +0530 | [diff] [blame] | 545 | .dedicated_clocks = true, |
Jagan Teki | 0e574bb | 2018-05-07 13:03:33 +0530 | [diff] [blame] | 546 | .enable_pmu_unk1 = false, |
| 547 | }; |
| 548 | |
Jagan Teki | 05a7b9f | 2018-05-07 13:03:30 +0530 | [diff] [blame] | 549 | static const struct sun4i_usb_phy_cfg sun8i_a83t_cfg = { |
| 550 | .num_phys = 3, |
| 551 | .type = sun8i_a83t_phy, |
| 552 | .phyctl_offset = REG_PHYCTL_A33, |
Jagan Teki | 0dc3333 | 2018-08-06 12:16:39 +0530 | [diff] [blame] | 553 | .dedicated_clocks = true, |
Jagan Teki | 05a7b9f | 2018-05-07 13:03:30 +0530 | [diff] [blame] | 554 | }; |
| 555 | |
Jagan Teki | c1b0e5a | 2018-05-07 13:03:28 +0530 | [diff] [blame] | 556 | static const struct sun4i_usb_phy_cfg sun8i_h3_cfg = { |
| 557 | .num_phys = 4, |
| 558 | .type = sun8i_h3_phy, |
| 559 | .disc_thresh = 3, |
| 560 | .phyctl_offset = REG_PHYCTL_A33, |
Jagan Teki | 0dc3333 | 2018-08-06 12:16:39 +0530 | [diff] [blame] | 561 | .dedicated_clocks = true, |
Jagan Teki | c1b0e5a | 2018-05-07 13:03:28 +0530 | [diff] [blame] | 562 | .enable_pmu_unk1 = true, |
| 563 | .phy0_dual_route = true, |
| 564 | }; |
| 565 | |
Jagan Teki | ac4bab4 | 2018-05-07 13:03:29 +0530 | [diff] [blame] | 566 | static const struct sun4i_usb_phy_cfg sun8i_v3s_cfg = { |
| 567 | .num_phys = 1, |
| 568 | .type = sun8i_v3s_phy, |
| 569 | .disc_thresh = 3, |
| 570 | .phyctl_offset = REG_PHYCTL_A33, |
Jagan Teki | 0dc3333 | 2018-08-06 12:16:39 +0530 | [diff] [blame] | 571 | .dedicated_clocks = true, |
Jagan Teki | ac4bab4 | 2018-05-07 13:03:29 +0530 | [diff] [blame] | 572 | .enable_pmu_unk1 = true, |
| 573 | .phy0_dual_route = true, |
| 574 | }; |
| 575 | |
Jagan Teki | d3c3828 | 2018-05-07 13:03:26 +0530 | [diff] [blame] | 576 | static const struct sun4i_usb_phy_cfg sun50i_a64_cfg = { |
| 577 | .num_phys = 2, |
| 578 | .type = sun50i_a64_phy, |
| 579 | .disc_thresh = 3, |
| 580 | .phyctl_offset = REG_PHYCTL_A33, |
Jagan Teki | 0dc3333 | 2018-08-06 12:16:39 +0530 | [diff] [blame] | 581 | .dedicated_clocks = true, |
Jagan Teki | d3c3828 | 2018-05-07 13:03:26 +0530 | [diff] [blame] | 582 | .enable_pmu_unk1 = true, |
| 583 | .phy0_dual_route = true, |
| 584 | }; |
| 585 | |
| 586 | static const struct udevice_id sun4i_usb_phy_ids[] = { |
Jagan Teki | 5a3000f | 2018-05-07 13:03:31 +0530 | [diff] [blame] | 587 | { .compatible = "allwinner,sun4i-a10-usb-phy", .data = (ulong)&sun4i_a10_cfg }, |
| 588 | { .compatible = "allwinner,sun5i-a13-usb-phy", .data = (ulong)&sun5i_a13_cfg }, |
Jagan Teki | 1cbc80c | 2018-05-07 13:03:32 +0530 | [diff] [blame] | 589 | { .compatible = "allwinner,sun6i-a31-usb-phy", .data = (ulong)&sun6i_a31_cfg }, |
Jagan Teki | 5a3000f | 2018-05-07 13:03:31 +0530 | [diff] [blame] | 590 | { .compatible = "allwinner,sun7i-a20-usb-phy", .data = (ulong)&sun7i_a20_cfg }, |
Jagan Teki | 00f9f6b | 2018-05-07 13:03:34 +0530 | [diff] [blame] | 591 | { .compatible = "allwinner,sun8i-a23-usb-phy", .data = (ulong)&sun8i_a23_cfg }, |
Jagan Teki | 0e574bb | 2018-05-07 13:03:33 +0530 | [diff] [blame] | 592 | { .compatible = "allwinner,sun8i-a33-usb-phy", .data = (ulong)&sun8i_a33_cfg }, |
Jagan Teki | 05a7b9f | 2018-05-07 13:03:30 +0530 | [diff] [blame] | 593 | { .compatible = "allwinner,sun8i-a83t-usb-phy", .data = (ulong)&sun8i_a83t_cfg }, |
Jagan Teki | c1b0e5a | 2018-05-07 13:03:28 +0530 | [diff] [blame] | 594 | { .compatible = "allwinner,sun8i-h3-usb-phy", .data = (ulong)&sun8i_h3_cfg }, |
Jagan Teki | ac4bab4 | 2018-05-07 13:03:29 +0530 | [diff] [blame] | 595 | { .compatible = "allwinner,sun8i-v3s-usb-phy", .data = (ulong)&sun8i_v3s_cfg }, |
Jagan Teki | d3c3828 | 2018-05-07 13:03:26 +0530 | [diff] [blame] | 596 | { .compatible = "allwinner,sun50i-a64-usb-phy", .data = (ulong)&sun50i_a64_cfg}, |
| 597 | { } |
| 598 | }; |
| 599 | |
| 600 | U_BOOT_DRIVER(sun4i_usb_phy) = { |
| 601 | .name = "sun4i_usb_phy", |
| 602 | .id = UCLASS_PHY, |
| 603 | .of_match = sun4i_usb_phy_ids, |
| 604 | .ops = &sun4i_usb_phy_ops, |
| 605 | .probe = sun4i_usb_phy_probe, |
| 606 | .platdata_auto_alloc_size = sizeof(struct sun4i_usb_phy_plat[MAX_PHYS]), |
| 607 | .priv_auto_alloc_size = sizeof(struct sun4i_usb_phy_data), |
| 608 | }; |