Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 1 | /* |
| 2 | * phy-brcm-usb-init.c - Broadcom USB Phy chip specific init functions |
| 3 | * |
| 4 | * Copyright (C) 2014-2017 Broadcom |
| 5 | * |
| 6 | * This software is licensed under the terms of the GNU General Public |
| 7 | * License version 2, as published by the Free Software Foundation, and |
| 8 | * may be copied, distributed, and modified under those terms. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | */ |
| 15 | |
| 16 | /* |
| 17 | * This module contains USB PHY initialization for power up and S3 resume |
| 18 | */ |
| 19 | |
| 20 | #include <linux/delay.h> |
| 21 | #include <linux/io.h> |
| 22 | |
| 23 | #include <linux/soc/brcmstb/brcmstb.h> |
| 24 | #include "phy-brcm-usb-init.h" |
| 25 | |
| 26 | #define PHY_PORTS 2 |
| 27 | #define PHY_PORT_SELECT_0 0 |
| 28 | #define PHY_PORT_SELECT_1 0x1000 |
| 29 | |
| 30 | /* Register definitions for the USB CTRL block */ |
| 31 | #define USB_CTRL_SETUP 0x00 |
| 32 | #define USB_CTRL_SETUP_IOC_MASK 0x00000010 |
| 33 | #define USB_CTRL_SETUP_IPP_MASK 0x00000020 |
| 34 | #define USB_CTRL_SETUP_BABO_MASK 0x00000001 |
| 35 | #define USB_CTRL_SETUP_FNHW_MASK 0x00000002 |
| 36 | #define USB_CTRL_SETUP_FNBO_MASK 0x00000004 |
| 37 | #define USB_CTRL_SETUP_WABO_MASK 0x00000008 |
| 38 | #define USB_CTRL_SETUP_SCB_CLIENT_SWAP_MASK 0x00002000 /* option */ |
| 39 | #define USB_CTRL_SETUP_SCB1_EN_MASK 0x00004000 /* option */ |
| 40 | #define USB_CTRL_SETUP_SCB2_EN_MASK 0x00008000 /* option */ |
| 41 | #define USB_CTRL_SETUP_SS_EHCI64BIT_EN_MASK 0X00020000 /* option */ |
| 42 | #define USB_CTRL_SETUP_SS_EHCI64BIT_EN_VAR_MASK 0x00010000 /* option */ |
| 43 | #define USB_CTRL_SETUP_STRAP_IPP_SEL_MASK 0x02000000 /* option */ |
| 44 | #define USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK 0x04000000 /* option */ |
| 45 | #define USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK 0x08000000 /* opt */ |
| 46 | #define USB_CTRL_SETUP_OC3_DISABLE_MASK 0xc0000000 /* option */ |
| 47 | #define USB_CTRL_PLL_CTL 0x04 |
| 48 | #define USB_CTRL_PLL_CTL_PLL_SUSPEND_EN_MASK 0x08000000 |
| 49 | #define USB_CTRL_PLL_CTL_PLL_RESETB_MASK 0x40000000 |
| 50 | #define USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK 0x80000000 /* option */ |
| 51 | #define USB_CTRL_EBRIDGE 0x0c |
| 52 | #define USB_CTRL_EBRIDGE_ESTOP_SCB_REQ_MASK 0x00020000 /* option */ |
| 53 | #define USB_CTRL_OBRIDGE 0x10 |
| 54 | #define USB_CTRL_OBRIDGE_LS_KEEP_ALIVE_MASK 0x08000000 |
| 55 | #define USB_CTRL_MDIO 0x14 |
| 56 | #define USB_CTRL_MDIO2 0x18 |
| 57 | #define USB_CTRL_UTMI_CTL_1 0x2c |
| 58 | #define USB_CTRL_UTMI_CTL_1_POWER_UP_FSM_EN_MASK 0x00000800 |
| 59 | #define USB_CTRL_UTMI_CTL_1_POWER_UP_FSM_EN_P1_MASK 0x08000000 |
| 60 | #define USB_CTRL_USB_PM 0x34 |
| 61 | #define USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK 0x00800000 /* option */ |
| 62 | #define USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK 0x00400000 /* option */ |
| 63 | #define USB_CTRL_USB_PM_XHC_SOFT_RESETB_VAR_MASK 0x40000000 /* option */ |
| 64 | #define USB_CTRL_USB_PM_USB_PWRDN_MASK 0x80000000 /* option */ |
| 65 | #define USB_CTRL_USB_PM_SOFT_RESET_MASK 0x40000000 /* option */ |
| 66 | #define USB_CTRL_USB_PM_USB20_HC_RESETB_MASK 0x30000000 /* option */ |
| 67 | #define USB_CTRL_USB_PM_USB20_HC_RESETB_VAR_MASK 0x00300000 /* option */ |
| 68 | #define USB_CTRL_USB30_CTL1 0x60 |
| 69 | #define USB_CTRL_USB30_CTL1_PHY3_PLL_SEQ_START_MASK 0x00000010 |
| 70 | #define USB_CTRL_USB30_CTL1_PHY3_RESETB_MASK 0x00010000 |
| 71 | #define USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK 0x00020000 /* option */ |
| 72 | #define USB_CTRL_USB30_CTL1_USB3_IOC_MASK 0x10000000 /* option */ |
| 73 | #define USB_CTRL_USB30_CTL1_USB3_IPP_MASK 0x20000000 /* option */ |
| 74 | #define USB_CTRL_USB30_PCTL 0x70 |
| 75 | #define USB_CTRL_USB30_PCTL_PHY3_SOFT_RESETB_MASK 0x00000002 |
| 76 | #define USB_CTRL_USB30_PCTL_PHY3_IDDQ_OVERRIDE_MASK 0x00008000 |
| 77 | #define USB_CTRL_USB30_PCTL_PHY3_SOFT_RESETB_P1_MASK 0x00020000 |
| 78 | #define USB_CTRL_USB_DEVICE_CTL1 0x90 |
| 79 | #define USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK 0x00000003 /* option */ |
| 80 | |
| 81 | /* Register definitions for the XHCI EC block */ |
| 82 | #define USB_XHCI_EC_IRAADR 0x658 |
| 83 | #define USB_XHCI_EC_IRADAT 0x65c |
| 84 | |
| 85 | enum brcm_family_type { |
| 86 | BRCM_FAMILY_3390A0, |
| 87 | BRCM_FAMILY_7250B0, |
| 88 | BRCM_FAMILY_7271A0, |
| 89 | BRCM_FAMILY_7364A0, |
| 90 | BRCM_FAMILY_7366C0, |
| 91 | BRCM_FAMILY_74371A0, |
| 92 | BRCM_FAMILY_7439B0, |
| 93 | BRCM_FAMILY_7445D0, |
| 94 | BRCM_FAMILY_7260A0, |
| 95 | BRCM_FAMILY_7278A0, |
| 96 | BRCM_FAMILY_COUNT, |
| 97 | }; |
| 98 | |
| 99 | #define USB_BRCM_FAMILY(chip) \ |
| 100 | [BRCM_FAMILY_##chip] = __stringify(chip) |
| 101 | |
| 102 | static const char *family_names[BRCM_FAMILY_COUNT] = { |
| 103 | USB_BRCM_FAMILY(3390A0), |
| 104 | USB_BRCM_FAMILY(7250B0), |
| 105 | USB_BRCM_FAMILY(7271A0), |
| 106 | USB_BRCM_FAMILY(7364A0), |
| 107 | USB_BRCM_FAMILY(7366C0), |
| 108 | USB_BRCM_FAMILY(74371A0), |
| 109 | USB_BRCM_FAMILY(7439B0), |
| 110 | USB_BRCM_FAMILY(7445D0), |
| 111 | USB_BRCM_FAMILY(7260A0), |
| 112 | USB_BRCM_FAMILY(7278A0), |
| 113 | }; |
| 114 | |
| 115 | enum { |
| 116 | USB_CTRL_SETUP_SCB1_EN_SELECTOR, |
| 117 | USB_CTRL_SETUP_SCB2_EN_SELECTOR, |
| 118 | USB_CTRL_SETUP_SS_EHCI64BIT_EN_SELECTOR, |
| 119 | USB_CTRL_SETUP_STRAP_IPP_SEL_SELECTOR, |
| 120 | USB_CTRL_SETUP_OC3_DISABLE_SELECTOR, |
| 121 | USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_SELECTOR, |
| 122 | USB_CTRL_USB_PM_BDC_SOFT_RESETB_SELECTOR, |
| 123 | USB_CTRL_USB_PM_XHC_SOFT_RESETB_SELECTOR, |
| 124 | USB_CTRL_USB_PM_USB_PWRDN_SELECTOR, |
| 125 | USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_SELECTOR, |
| 126 | USB_CTRL_USB30_CTL1_USB3_IOC_SELECTOR, |
| 127 | USB_CTRL_USB30_CTL1_USB3_IPP_SELECTOR, |
| 128 | USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_SELECTOR, |
| 129 | USB_CTRL_USB_PM_SOFT_RESET_SELECTOR, |
| 130 | USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_SELECTOR, |
| 131 | USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_SELECTOR, |
| 132 | USB_CTRL_USB_PM_USB20_HC_RESETB_SELECTOR, |
| 133 | USB_CTRL_SETUP_ENDIAN_SELECTOR, |
| 134 | USB_CTRL_SELECTOR_COUNT, |
| 135 | }; |
| 136 | |
| 137 | #define USB_CTRL_REG(base, reg) ((void *)base + USB_CTRL_##reg) |
| 138 | #define USB_XHCI_EC_REG(base, reg) ((void *)base + USB_XHCI_EC_##reg) |
| 139 | #define USB_CTRL_MASK(reg, field) \ |
| 140 | USB_CTRL_##reg##_##field##_MASK |
| 141 | #define USB_CTRL_MASK_FAMILY(params, reg, field) \ |
| 142 | (params->usb_reg_bits_map[USB_CTRL_##reg##_##field##_SELECTOR]) |
| 143 | |
| 144 | #define USB_CTRL_SET_FAMILY(params, reg, field) \ |
| 145 | usb_ctrl_set_family(params, USB_CTRL_##reg, \ |
| 146 | USB_CTRL_##reg##_##field##_SELECTOR) |
| 147 | #define USB_CTRL_UNSET_FAMILY(params, reg, field) \ |
| 148 | usb_ctrl_unset_family(params, USB_CTRL_##reg, \ |
| 149 | USB_CTRL_##reg##_##field##_SELECTOR) |
| 150 | |
| 151 | #define USB_CTRL_SET(base, reg, field) \ |
| 152 | usb_ctrl_set(USB_CTRL_REG(base, reg), \ |
| 153 | USB_CTRL_##reg##_##field##_MASK) |
| 154 | #define USB_CTRL_UNSET(base, reg, field) \ |
| 155 | usb_ctrl_unset(USB_CTRL_REG(base, reg), \ |
| 156 | USB_CTRL_##reg##_##field##_MASK) |
| 157 | |
| 158 | #define MDIO_USB2 0 |
| 159 | #define MDIO_USB3 BIT(31) |
| 160 | |
| 161 | #define USB_CTRL_SETUP_ENDIAN_BITS ( \ |
| 162 | USB_CTRL_MASK(SETUP, BABO) | \ |
| 163 | USB_CTRL_MASK(SETUP, FNHW) | \ |
| 164 | USB_CTRL_MASK(SETUP, FNBO) | \ |
| 165 | USB_CTRL_MASK(SETUP, WABO)) |
| 166 | |
| 167 | #ifdef __LITTLE_ENDIAN |
| 168 | #define ENDIAN_SETTINGS ( \ |
| 169 | USB_CTRL_MASK(SETUP, BABO) | \ |
| 170 | USB_CTRL_MASK(SETUP, FNHW)) |
| 171 | #else |
| 172 | #define ENDIAN_SETTINGS ( \ |
| 173 | USB_CTRL_MASK(SETUP, FNHW) | \ |
| 174 | USB_CTRL_MASK(SETUP, FNBO) | \ |
| 175 | USB_CTRL_MASK(SETUP, WABO)) |
| 176 | #endif |
| 177 | |
| 178 | struct id_to_type { |
| 179 | u32 id; |
| 180 | int type; |
| 181 | }; |
| 182 | |
| 183 | static const struct id_to_type id_to_type_table[] = { |
| 184 | { 0x33900000, BRCM_FAMILY_3390A0 }, |
| 185 | { 0x72500010, BRCM_FAMILY_7250B0 }, |
| 186 | { 0x72600000, BRCM_FAMILY_7260A0 }, |
| 187 | { 0x72680000, BRCM_FAMILY_7271A0 }, |
| 188 | { 0x72710000, BRCM_FAMILY_7271A0 }, |
| 189 | { 0x73640000, BRCM_FAMILY_7364A0 }, |
| 190 | { 0x73660020, BRCM_FAMILY_7366C0 }, |
| 191 | { 0x07437100, BRCM_FAMILY_74371A0 }, |
| 192 | { 0x74390010, BRCM_FAMILY_7439B0 }, |
| 193 | { 0x74450030, BRCM_FAMILY_7445D0 }, |
| 194 | { 0x72780000, BRCM_FAMILY_7278A0 }, |
| 195 | { 0, BRCM_FAMILY_7271A0 }, /* default */ |
| 196 | }; |
| 197 | |
| 198 | static const u32 |
| 199 | usb_reg_bits_map_table[BRCM_FAMILY_COUNT][USB_CTRL_SELECTOR_COUNT] = { |
| 200 | /* 3390B0 */ |
| 201 | [BRCM_FAMILY_3390A0] = { |
| 202 | USB_CTRL_SETUP_SCB1_EN_MASK, |
| 203 | USB_CTRL_SETUP_SCB2_EN_MASK, |
| 204 | USB_CTRL_SETUP_SS_EHCI64BIT_EN_MASK, |
| 205 | USB_CTRL_SETUP_STRAP_IPP_SEL_MASK, |
| 206 | USB_CTRL_SETUP_OC3_DISABLE_MASK, |
| 207 | 0, /* USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK */ |
| 208 | 0, /* USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK */ |
| 209 | USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK, |
| 210 | USB_CTRL_USB_PM_USB_PWRDN_MASK, |
| 211 | 0, /* USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK */ |
| 212 | 0, /* USB_CTRL_USB30_CTL1_USB3_IOC_MASK */ |
| 213 | 0, /* USB_CTRL_USB30_CTL1_USB3_IPP_MASK */ |
| 214 | USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK, |
| 215 | 0, /* USB_CTRL_USB_PM_SOFT_RESET_MASK */ |
| 216 | 0, /* USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK */ |
| 217 | 0, /* USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK */ |
| 218 | USB_CTRL_USB_PM_USB20_HC_RESETB_VAR_MASK, |
| 219 | ENDIAN_SETTINGS, /* USB_CTRL_SETUP ENDIAN bits */ |
| 220 | }, |
| 221 | /* 7250b0 */ |
| 222 | [BRCM_FAMILY_7250B0] = { |
| 223 | USB_CTRL_SETUP_SCB1_EN_MASK, |
| 224 | USB_CTRL_SETUP_SCB2_EN_MASK, |
| 225 | USB_CTRL_SETUP_SS_EHCI64BIT_EN_MASK, |
| 226 | 0, /* USB_CTRL_SETUP_STRAP_IPP_SEL_MASK */ |
| 227 | USB_CTRL_SETUP_OC3_DISABLE_MASK, |
| 228 | USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK, |
| 229 | 0, /* USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK */ |
| 230 | USB_CTRL_USB_PM_XHC_SOFT_RESETB_VAR_MASK, |
| 231 | 0, /* USB_CTRL_USB_PM_USB_PWRDN_MASK */ |
| 232 | 0, /* USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK */ |
| 233 | 0, /* USB_CTRL_USB30_CTL1_USB3_IOC_MASK */ |
| 234 | 0, /* USB_CTRL_USB30_CTL1_USB3_IPP_MASK */ |
| 235 | 0, /* USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK */ |
| 236 | 0, /* USB_CTRL_USB_PM_SOFT_RESET_MASK */ |
| 237 | 0, /* USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK */ |
| 238 | 0, /* USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK */ |
| 239 | USB_CTRL_USB_PM_USB20_HC_RESETB_MASK, |
| 240 | ENDIAN_SETTINGS, /* USB_CTRL_SETUP ENDIAN bits */ |
| 241 | }, |
| 242 | /* 7271a0 */ |
| 243 | [BRCM_FAMILY_7271A0] = { |
| 244 | 0, /* USB_CTRL_SETUP_SCB1_EN_MASK */ |
| 245 | 0, /* USB_CTRL_SETUP_SCB2_EN_MASK */ |
| 246 | USB_CTRL_SETUP_SS_EHCI64BIT_EN_MASK, |
| 247 | USB_CTRL_SETUP_STRAP_IPP_SEL_MASK, |
| 248 | USB_CTRL_SETUP_OC3_DISABLE_MASK, |
| 249 | 0, /* USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK */ |
| 250 | USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK, |
| 251 | USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK, |
| 252 | USB_CTRL_USB_PM_USB_PWRDN_MASK, |
| 253 | 0, /* USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK */ |
| 254 | 0, /* USB_CTRL_USB30_CTL1_USB3_IOC_MASK */ |
| 255 | 0, /* USB_CTRL_USB30_CTL1_USB3_IPP_MASK */ |
| 256 | USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK, |
| 257 | USB_CTRL_USB_PM_SOFT_RESET_MASK, |
| 258 | USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK, |
| 259 | USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK, |
| 260 | USB_CTRL_USB_PM_USB20_HC_RESETB_VAR_MASK, |
| 261 | ENDIAN_SETTINGS, /* USB_CTRL_SETUP ENDIAN bits */ |
| 262 | }, |
| 263 | /* 7364a0 */ |
| 264 | [BRCM_FAMILY_7364A0] = { |
| 265 | USB_CTRL_SETUP_SCB1_EN_MASK, |
| 266 | USB_CTRL_SETUP_SCB2_EN_MASK, |
| 267 | USB_CTRL_SETUP_SS_EHCI64BIT_EN_MASK, |
| 268 | 0, /* USB_CTRL_SETUP_STRAP_IPP_SEL_MASK */ |
| 269 | USB_CTRL_SETUP_OC3_DISABLE_MASK, |
| 270 | USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK, |
| 271 | 0, /* USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK */ |
| 272 | USB_CTRL_USB_PM_XHC_SOFT_RESETB_VAR_MASK, |
| 273 | 0, /* USB_CTRL_USB_PM_USB_PWRDN_MASK */ |
| 274 | 0, /* USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK */ |
| 275 | 0, /* USB_CTRL_USB30_CTL1_USB3_IOC_MASK */ |
| 276 | 0, /* USB_CTRL_USB30_CTL1_USB3_IPP_MASK */ |
| 277 | 0, /* USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK */ |
| 278 | 0, /* USB_CTRL_USB_PM_SOFT_RESET_MASK */ |
| 279 | 0, /* USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK */ |
| 280 | 0, /* USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK */ |
| 281 | USB_CTRL_USB_PM_USB20_HC_RESETB_MASK, |
| 282 | ENDIAN_SETTINGS, /* USB_CTRL_SETUP ENDIAN bits */ |
| 283 | }, |
| 284 | /* 7366c0 */ |
| 285 | [BRCM_FAMILY_7366C0] = { |
| 286 | USB_CTRL_SETUP_SCB1_EN_MASK, |
| 287 | USB_CTRL_SETUP_SCB2_EN_MASK, |
| 288 | USB_CTRL_SETUP_SS_EHCI64BIT_EN_MASK, |
| 289 | 0, /* USB_CTRL_SETUP_STRAP_IPP_SEL_MASK */ |
| 290 | USB_CTRL_SETUP_OC3_DISABLE_MASK, |
| 291 | 0, /* USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK */ |
| 292 | 0, /* USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK */ |
| 293 | USB_CTRL_USB_PM_XHC_SOFT_RESETB_VAR_MASK, |
| 294 | USB_CTRL_USB_PM_USB_PWRDN_MASK, |
| 295 | 0, /* USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK */ |
| 296 | 0, /* USB_CTRL_USB30_CTL1_USB3_IOC_MASK */ |
| 297 | 0, /* USB_CTRL_USB30_CTL1_USB3_IPP_MASK */ |
| 298 | 0, /* USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK */ |
| 299 | 0, /* USB_CTRL_USB_PM_SOFT_RESET_MASK */ |
| 300 | 0, /* USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK */ |
| 301 | 0, /* USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK */ |
| 302 | USB_CTRL_USB_PM_USB20_HC_RESETB_MASK, |
| 303 | ENDIAN_SETTINGS, /* USB_CTRL_SETUP ENDIAN bits */ |
| 304 | }, |
| 305 | /* 74371A0 */ |
| 306 | [BRCM_FAMILY_74371A0] = { |
| 307 | USB_CTRL_SETUP_SCB1_EN_MASK, |
| 308 | USB_CTRL_SETUP_SCB2_EN_MASK, |
| 309 | USB_CTRL_SETUP_SS_EHCI64BIT_EN_VAR_MASK, |
| 310 | 0, /* USB_CTRL_SETUP_STRAP_IPP_SEL_MASK */ |
| 311 | 0, /* USB_CTRL_SETUP_OC3_DISABLE_MASK */ |
| 312 | USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK, |
| 313 | 0, /* USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK */ |
| 314 | 0, /* USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK */ |
| 315 | 0, /* USB_CTRL_USB_PM_USB_PWRDN_MASK */ |
| 316 | USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK, |
| 317 | USB_CTRL_USB30_CTL1_USB3_IOC_MASK, |
| 318 | USB_CTRL_USB30_CTL1_USB3_IPP_MASK, |
| 319 | 0, /* USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK */ |
| 320 | 0, /* USB_CTRL_USB_PM_SOFT_RESET_MASK */ |
| 321 | 0, /* USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK */ |
| 322 | 0, /* USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK */ |
| 323 | 0, /* USB_CTRL_USB_PM_USB20_HC_RESETB_MASK */ |
| 324 | ENDIAN_SETTINGS, /* USB_CTRL_SETUP ENDIAN bits */ |
| 325 | }, |
| 326 | /* 7439B0 */ |
| 327 | [BRCM_FAMILY_7439B0] = { |
| 328 | USB_CTRL_SETUP_SCB1_EN_MASK, |
| 329 | USB_CTRL_SETUP_SCB2_EN_MASK, |
| 330 | USB_CTRL_SETUP_SS_EHCI64BIT_EN_MASK, |
| 331 | USB_CTRL_SETUP_STRAP_IPP_SEL_MASK, |
| 332 | USB_CTRL_SETUP_OC3_DISABLE_MASK, |
| 333 | 0, /* USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK */ |
| 334 | USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK, |
| 335 | USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK, |
| 336 | USB_CTRL_USB_PM_USB_PWRDN_MASK, |
| 337 | 0, /* USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK */ |
| 338 | 0, /* USB_CTRL_USB30_CTL1_USB3_IOC_MASK */ |
| 339 | 0, /* USB_CTRL_USB30_CTL1_USB3_IPP_MASK */ |
| 340 | USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK, |
| 341 | 0, /* USB_CTRL_USB_PM_SOFT_RESET_MASK */ |
| 342 | 0, /* USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK */ |
| 343 | 0, /* USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK */ |
| 344 | USB_CTRL_USB_PM_USB20_HC_RESETB_VAR_MASK, |
| 345 | ENDIAN_SETTINGS, /* USB_CTRL_SETUP ENDIAN bits */ |
| 346 | }, |
| 347 | /* 7445d0 */ |
| 348 | [BRCM_FAMILY_7445D0] = { |
| 349 | USB_CTRL_SETUP_SCB1_EN_MASK, |
| 350 | USB_CTRL_SETUP_SCB2_EN_MASK, |
| 351 | USB_CTRL_SETUP_SS_EHCI64BIT_EN_VAR_MASK, |
| 352 | 0, /* USB_CTRL_SETUP_STRAP_IPP_SEL_MASK */ |
| 353 | USB_CTRL_SETUP_OC3_DISABLE_MASK, |
| 354 | USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK, |
| 355 | 0, /* USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK */ |
| 356 | 0, /* USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK */ |
| 357 | 0, /* USB_CTRL_USB_PM_USB_PWRDN_MASK */ |
| 358 | USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK, |
| 359 | 0, /* USB_CTRL_USB30_CTL1_USB3_IOC_MASK */ |
| 360 | 0, /* USB_CTRL_USB30_CTL1_USB3_IPP_MASK */ |
| 361 | 0, /* USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK */ |
| 362 | 0, /* USB_CTRL_USB_PM_SOFT_RESET_MASK */ |
| 363 | 0, /* USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK */ |
| 364 | 0, /* USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK */ |
| 365 | USB_CTRL_USB_PM_USB20_HC_RESETB_VAR_MASK, |
| 366 | ENDIAN_SETTINGS, /* USB_CTRL_SETUP ENDIAN bits */ |
| 367 | }, |
| 368 | /* 7260a0 */ |
| 369 | [BRCM_FAMILY_7260A0] = { |
| 370 | 0, /* USB_CTRL_SETUP_SCB1_EN_MASK */ |
| 371 | 0, /* USB_CTRL_SETUP_SCB2_EN_MASK */ |
| 372 | USB_CTRL_SETUP_SS_EHCI64BIT_EN_MASK, |
| 373 | USB_CTRL_SETUP_STRAP_IPP_SEL_MASK, |
| 374 | USB_CTRL_SETUP_OC3_DISABLE_MASK, |
| 375 | 0, /* USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK */ |
| 376 | USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK, |
| 377 | USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK, |
| 378 | USB_CTRL_USB_PM_USB_PWRDN_MASK, |
| 379 | 0, /* USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK */ |
| 380 | 0, /* USB_CTRL_USB30_CTL1_USB3_IOC_MASK */ |
| 381 | 0, /* USB_CTRL_USB30_CTL1_USB3_IPP_MASK */ |
| 382 | USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK, |
| 383 | USB_CTRL_USB_PM_SOFT_RESET_MASK, |
| 384 | USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK, |
| 385 | USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK, |
| 386 | USB_CTRL_USB_PM_USB20_HC_RESETB_VAR_MASK, |
| 387 | ENDIAN_SETTINGS, /* USB_CTRL_SETUP ENDIAN bits */ |
| 388 | }, |
| 389 | /* 7278a0 */ |
| 390 | [BRCM_FAMILY_7278A0] = { |
| 391 | 0, /* USB_CTRL_SETUP_SCB1_EN_MASK */ |
| 392 | 0, /* USB_CTRL_SETUP_SCB2_EN_MASK */ |
| 393 | 0, /*USB_CTRL_SETUP_SS_EHCI64BIT_EN_MASK */ |
| 394 | USB_CTRL_SETUP_STRAP_IPP_SEL_MASK, |
| 395 | USB_CTRL_SETUP_OC3_DISABLE_MASK, |
| 396 | 0, /* USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK */ |
| 397 | USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK, |
| 398 | USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK, |
| 399 | USB_CTRL_USB_PM_USB_PWRDN_MASK, |
| 400 | 0, /* USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK */ |
| 401 | 0, /* USB_CTRL_USB30_CTL1_USB3_IOC_MASK */ |
| 402 | 0, /* USB_CTRL_USB30_CTL1_USB3_IPP_MASK */ |
| 403 | USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK, |
| 404 | USB_CTRL_USB_PM_SOFT_RESET_MASK, |
| 405 | 0, /* USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK */ |
| 406 | 0, /* USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK */ |
| 407 | 0, /* USB_CTRL_USB_PM_USB20_HC_RESETB_MASK */ |
| 408 | 0, /* USB_CTRL_SETUP ENDIAN bits */ |
| 409 | }, |
| 410 | }; |
| 411 | |
| 412 | static inline u32 brcmusb_readl(void __iomem *addr) |
| 413 | { |
| 414 | return readl(addr); |
| 415 | } |
| 416 | |
| 417 | static inline void brcmusb_writel(u32 val, void __iomem *addr) |
| 418 | { |
| 419 | writel(val, addr); |
| 420 | } |
| 421 | |
| 422 | static inline |
| 423 | void usb_ctrl_unset_family(struct brcm_usb_init_params *params, |
| 424 | u32 reg_offset, u32 field) |
| 425 | { |
| 426 | u32 mask; |
| 427 | void *reg; |
| 428 | |
| 429 | mask = params->usb_reg_bits_map[field]; |
| 430 | reg = params->ctrl_regs + reg_offset; |
| 431 | brcmusb_writel(brcmusb_readl(reg) & ~mask, reg); |
| 432 | }; |
| 433 | |
| 434 | static inline |
| 435 | void usb_ctrl_set_family(struct brcm_usb_init_params *params, |
| 436 | u32 reg_offset, u32 field) |
| 437 | { |
| 438 | u32 mask; |
| 439 | void *reg; |
| 440 | |
| 441 | mask = params->usb_reg_bits_map[field]; |
| 442 | reg = params->ctrl_regs + reg_offset; |
| 443 | brcmusb_writel(brcmusb_readl(reg) | mask, reg); |
| 444 | }; |
| 445 | |
| 446 | static inline void usb_ctrl_set(void __iomem *reg, u32 field) |
| 447 | { |
| 448 | u32 value; |
| 449 | |
| 450 | value = brcmusb_readl(reg); |
| 451 | brcmusb_writel(value | field, reg); |
| 452 | } |
| 453 | |
| 454 | static inline void usb_ctrl_unset(void __iomem *reg, u32 field) |
| 455 | { |
| 456 | u32 value; |
| 457 | |
| 458 | value = brcmusb_readl(reg); |
| 459 | brcmusb_writel(value & ~field, reg); |
| 460 | } |
| 461 | |
| 462 | static u32 brcmusb_usb_mdio_read(void __iomem *ctrl_base, u32 reg, int mode) |
| 463 | { |
| 464 | u32 data; |
| 465 | |
| 466 | data = (reg << 16) | mode; |
| 467 | brcmusb_writel(data, USB_CTRL_REG(ctrl_base, MDIO)); |
| 468 | data |= (1 << 24); |
| 469 | brcmusb_writel(data, USB_CTRL_REG(ctrl_base, MDIO)); |
| 470 | data &= ~(1 << 24); |
| 471 | /* wait for the 60MHz parallel to serial shifter */ |
| 472 | usleep_range(10, 20); |
| 473 | brcmusb_writel(data, USB_CTRL_REG(ctrl_base, MDIO)); |
| 474 | /* wait for the 60MHz parallel to serial shifter */ |
| 475 | usleep_range(10, 20); |
| 476 | |
| 477 | return brcmusb_readl(USB_CTRL_REG(ctrl_base, MDIO2)) & 0xffff; |
| 478 | } |
| 479 | |
| 480 | static void brcmusb_usb_mdio_write(void __iomem *ctrl_base, u32 reg, |
| 481 | u32 val, int mode) |
| 482 | { |
| 483 | u32 data; |
| 484 | |
| 485 | data = (reg << 16) | val | mode; |
| 486 | brcmusb_writel(data, USB_CTRL_REG(ctrl_base, MDIO)); |
| 487 | data |= (1 << 25); |
| 488 | brcmusb_writel(data, USB_CTRL_REG(ctrl_base, MDIO)); |
| 489 | data &= ~(1 << 25); |
| 490 | |
| 491 | /* wait for the 60MHz parallel to serial shifter */ |
| 492 | usleep_range(10, 20); |
| 493 | brcmusb_writel(data, USB_CTRL_REG(ctrl_base, MDIO)); |
| 494 | /* wait for the 60MHz parallel to serial shifter */ |
| 495 | usleep_range(10, 20); |
| 496 | } |
| 497 | |
| 498 | static void brcmusb_usb_phy_ldo_fix(void __iomem *ctrl_base) |
| 499 | { |
| 500 | /* first disable FSM but also leave it that way */ |
| 501 | /* to allow normal suspend/resume */ |
| 502 | USB_CTRL_UNSET(ctrl_base, UTMI_CTL_1, POWER_UP_FSM_EN); |
| 503 | USB_CTRL_UNSET(ctrl_base, UTMI_CTL_1, POWER_UP_FSM_EN_P1); |
| 504 | |
| 505 | /* reset USB 2.0 PLL */ |
| 506 | USB_CTRL_UNSET(ctrl_base, PLL_CTL, PLL_RESETB); |
| 507 | /* PLL reset period */ |
| 508 | udelay(1); |
| 509 | USB_CTRL_SET(ctrl_base, PLL_CTL, PLL_RESETB); |
| 510 | /* Give PLL enough time to lock */ |
| 511 | usleep_range(1000, 2000); |
| 512 | } |
| 513 | |
| 514 | static void brcmusb_usb2_eye_fix(void __iomem *ctrl_base) |
| 515 | { |
| 516 | /* Increase USB 2.0 TX level to meet spec requirement */ |
| 517 | brcmusb_usb_mdio_write(ctrl_base, 0x1f, 0x80a0, MDIO_USB2); |
| 518 | brcmusb_usb_mdio_write(ctrl_base, 0x0a, 0xc6a0, MDIO_USB2); |
| 519 | } |
| 520 | |
| 521 | static void brcmusb_usb3_pll_fix(void __iomem *ctrl_base) |
| 522 | { |
| 523 | /* Set correct window for PLL lock detect */ |
| 524 | brcmusb_usb_mdio_write(ctrl_base, 0x1f, 0x8000, MDIO_USB3); |
| 525 | brcmusb_usb_mdio_write(ctrl_base, 0x07, 0x1503, MDIO_USB3); |
| 526 | } |
| 527 | |
| 528 | static void brcmusb_usb3_enable_pipe_reset(void __iomem *ctrl_base) |
| 529 | { |
| 530 | u32 val; |
| 531 | |
| 532 | /* Re-enable USB 3.0 pipe reset */ |
| 533 | brcmusb_usb_mdio_write(ctrl_base, 0x1f, 0x8000, MDIO_USB3); |
| 534 | val = brcmusb_usb_mdio_read(ctrl_base, 0x0f, MDIO_USB3) | 0x200; |
| 535 | brcmusb_usb_mdio_write(ctrl_base, 0x0f, val, MDIO_USB3); |
| 536 | } |
| 537 | |
| 538 | static void brcmusb_usb3_enable_sigdet(void __iomem *ctrl_base) |
| 539 | { |
| 540 | u32 val, ofs; |
| 541 | int ii; |
| 542 | |
| 543 | ofs = 0; |
| 544 | for (ii = 0; ii < PHY_PORTS; ++ii) { |
| 545 | /* Set correct default for sigdet */ |
| 546 | brcmusb_usb_mdio_write(ctrl_base, 0x1f, (0x8080 + ofs), |
| 547 | MDIO_USB3); |
| 548 | val = brcmusb_usb_mdio_read(ctrl_base, 0x05, MDIO_USB3); |
| 549 | val = (val & ~0x800f) | 0x800d; |
| 550 | brcmusb_usb_mdio_write(ctrl_base, 0x05, val, MDIO_USB3); |
| 551 | ofs = PHY_PORT_SELECT_1; |
| 552 | } |
| 553 | } |
| 554 | |
| 555 | static void brcmusb_usb3_enable_skip_align(void __iomem *ctrl_base) |
| 556 | { |
| 557 | u32 val, ofs; |
| 558 | int ii; |
| 559 | |
| 560 | ofs = 0; |
| 561 | for (ii = 0; ii < PHY_PORTS; ++ii) { |
| 562 | /* Set correct default for SKIP align */ |
| 563 | brcmusb_usb_mdio_write(ctrl_base, 0x1f, (0x8060 + ofs), |
| 564 | MDIO_USB3); |
| 565 | val = brcmusb_usb_mdio_read(ctrl_base, 0x01, MDIO_USB3) | 0x200; |
| 566 | brcmusb_usb_mdio_write(ctrl_base, 0x01, val, MDIO_USB3); |
| 567 | ofs = PHY_PORT_SELECT_1; |
| 568 | } |
| 569 | } |
| 570 | |
| 571 | static void brcmusb_usb3_unfreeze_aeq(void __iomem *ctrl_base) |
| 572 | { |
| 573 | u32 val, ofs; |
| 574 | int ii; |
| 575 | |
| 576 | ofs = 0; |
| 577 | for (ii = 0; ii < PHY_PORTS; ++ii) { |
| 578 | /* Let EQ freeze after TSEQ */ |
| 579 | brcmusb_usb_mdio_write(ctrl_base, 0x1f, (0x80e0 + ofs), |
| 580 | MDIO_USB3); |
| 581 | val = brcmusb_usb_mdio_read(ctrl_base, 0x01, MDIO_USB3); |
| 582 | val &= ~0x0008; |
| 583 | brcmusb_usb_mdio_write(ctrl_base, 0x01, val, MDIO_USB3); |
| 584 | ofs = PHY_PORT_SELECT_1; |
| 585 | } |
| 586 | } |
| 587 | |
| 588 | static void brcmusb_usb3_pll_54mhz(struct brcm_usb_init_params *params) |
| 589 | { |
| 590 | u32 ofs; |
| 591 | int ii; |
| 592 | void __iomem *ctrl_base = params->ctrl_regs; |
| 593 | |
| 594 | /* |
| 595 | * On newer B53 based SoC's, the reference clock for the |
| 596 | * 3.0 PLL has been changed from 50MHz to 54MHz so the |
| 597 | * PLL needs to be reprogrammed. |
| 598 | * See SWLINUX-4006. |
| 599 | * |
| 600 | * On the 7364C0, the reference clock for the |
| 601 | * 3.0 PLL has been changed from 50MHz to 54MHz to |
| 602 | * work around a MOCA issue. |
| 603 | * See SWLINUX-4169. |
| 604 | */ |
| 605 | switch (params->selected_family) { |
| 606 | case BRCM_FAMILY_3390A0: |
| 607 | case BRCM_FAMILY_7250B0: |
| 608 | case BRCM_FAMILY_7366C0: |
| 609 | case BRCM_FAMILY_74371A0: |
| 610 | case BRCM_FAMILY_7439B0: |
| 611 | case BRCM_FAMILY_7445D0: |
| 612 | case BRCM_FAMILY_7260A0: |
| 613 | return; |
| 614 | case BRCM_FAMILY_7364A0: |
| 615 | if (BRCM_REV(params->family_id) < 0x20) |
| 616 | return; |
| 617 | break; |
| 618 | } |
| 619 | |
| 620 | /* set USB 3.0 PLL to accept 54Mhz reference clock */ |
| 621 | USB_CTRL_UNSET(ctrl_base, USB30_CTL1, PHY3_PLL_SEQ_START); |
| 622 | |
| 623 | brcmusb_usb_mdio_write(ctrl_base, 0x1f, 0x8000, MDIO_USB3); |
| 624 | brcmusb_usb_mdio_write(ctrl_base, 0x10, 0x5784, MDIO_USB3); |
| 625 | brcmusb_usb_mdio_write(ctrl_base, 0x11, 0x01d0, MDIO_USB3); |
| 626 | brcmusb_usb_mdio_write(ctrl_base, 0x12, 0x1DE8, MDIO_USB3); |
| 627 | brcmusb_usb_mdio_write(ctrl_base, 0x13, 0xAA80, MDIO_USB3); |
| 628 | brcmusb_usb_mdio_write(ctrl_base, 0x14, 0x8826, MDIO_USB3); |
| 629 | brcmusb_usb_mdio_write(ctrl_base, 0x15, 0x0044, MDIO_USB3); |
| 630 | brcmusb_usb_mdio_write(ctrl_base, 0x16, 0x8000, MDIO_USB3); |
| 631 | brcmusb_usb_mdio_write(ctrl_base, 0x17, 0x0851, MDIO_USB3); |
| 632 | brcmusb_usb_mdio_write(ctrl_base, 0x18, 0x0000, MDIO_USB3); |
| 633 | |
| 634 | /* both ports */ |
| 635 | ofs = 0; |
| 636 | for (ii = 0; ii < PHY_PORTS; ++ii) { |
| 637 | brcmusb_usb_mdio_write(ctrl_base, 0x1f, (0x8040 + ofs), |
| 638 | MDIO_USB3); |
| 639 | brcmusb_usb_mdio_write(ctrl_base, 0x03, 0x0090, MDIO_USB3); |
| 640 | brcmusb_usb_mdio_write(ctrl_base, 0x04, 0x0134, MDIO_USB3); |
| 641 | brcmusb_usb_mdio_write(ctrl_base, 0x1f, (0x8020 + ofs), |
| 642 | MDIO_USB3); |
| 643 | brcmusb_usb_mdio_write(ctrl_base, 0x01, 0x00e2, MDIO_USB3); |
| 644 | ofs = PHY_PORT_SELECT_1; |
| 645 | } |
| 646 | |
| 647 | /* restart PLL sequence */ |
| 648 | USB_CTRL_SET(ctrl_base, USB30_CTL1, PHY3_PLL_SEQ_START); |
| 649 | /* Give PLL enough time to lock */ |
| 650 | usleep_range(1000, 2000); |
| 651 | } |
| 652 | |
| 653 | static void brcmusb_usb3_ssc_enable(void __iomem *ctrl_base) |
| 654 | { |
| 655 | u32 val; |
| 656 | |
| 657 | /* Enable USB 3.0 TX spread spectrum */ |
| 658 | brcmusb_usb_mdio_write(ctrl_base, 0x1f, 0x8040, MDIO_USB3); |
| 659 | val = brcmusb_usb_mdio_read(ctrl_base, 0x01, MDIO_USB3) | 0xf; |
| 660 | brcmusb_usb_mdio_write(ctrl_base, 0x01, val, MDIO_USB3); |
| 661 | |
| 662 | /* Currently, USB 3.0 SSC is enabled via port 0 MDIO registers, |
| 663 | * which should have been adequate. However, due to a bug in the |
| 664 | * USB 3.0 PHY, it must be enabled via both ports (HWUSB3DVT-26). |
| 665 | */ |
| 666 | brcmusb_usb_mdio_write(ctrl_base, 0x1f, 0x9040, MDIO_USB3); |
| 667 | val = brcmusb_usb_mdio_read(ctrl_base, 0x01, MDIO_USB3) | 0xf; |
| 668 | brcmusb_usb_mdio_write(ctrl_base, 0x01, val, MDIO_USB3); |
| 669 | } |
| 670 | |
| 671 | static void brcmusb_usb3_phy_workarounds(struct brcm_usb_init_params *params) |
| 672 | { |
| 673 | void __iomem *ctrl_base = params->ctrl_regs; |
| 674 | |
| 675 | brcmusb_usb3_pll_fix(ctrl_base); |
| 676 | brcmusb_usb3_pll_54mhz(params); |
| 677 | brcmusb_usb3_ssc_enable(ctrl_base); |
| 678 | brcmusb_usb3_enable_pipe_reset(ctrl_base); |
| 679 | brcmusb_usb3_enable_sigdet(ctrl_base); |
| 680 | brcmusb_usb3_enable_skip_align(ctrl_base); |
| 681 | brcmusb_usb3_unfreeze_aeq(ctrl_base); |
| 682 | } |
| 683 | |
| 684 | static void brcmusb_memc_fix(struct brcm_usb_init_params *params) |
| 685 | { |
| 686 | u32 prid; |
| 687 | |
| 688 | if (params->selected_family != BRCM_FAMILY_7445D0) |
| 689 | return; |
| 690 | /* |
| 691 | * This is a workaround for HW7445-1869 where a DMA write ends up |
| 692 | * doing a read pre-fetch after the end of the DMA buffer. This |
| 693 | * causes a problem when the DMA buffer is at the end of physical |
| 694 | * memory, causing the pre-fetch read to access non-existent memory, |
| 695 | * and the chip bondout has MEMC2 disabled. When the pre-fetch read |
| 696 | * tries to use the disabled MEMC2, it hangs the bus. The workaround |
| 697 | * is to disable MEMC2 access in the usb controller which avoids |
| 698 | * the hang. |
| 699 | */ |
| 700 | |
| 701 | prid = params->product_id & 0xfffff000; |
| 702 | switch (prid) { |
| 703 | case 0x72520000: |
| 704 | case 0x74480000: |
| 705 | case 0x74490000: |
| 706 | case 0x07252000: |
| 707 | case 0x07448000: |
| 708 | case 0x07449000: |
| 709 | USB_CTRL_UNSET_FAMILY(params, SETUP, SCB2_EN); |
| 710 | } |
| 711 | } |
| 712 | |
| 713 | static void brcmusb_usb3_otp_fix(struct brcm_usb_init_params *params) |
| 714 | { |
| 715 | void __iomem *xhci_ec_base = params->xhci_ec_regs; |
| 716 | u32 val; |
| 717 | |
| 718 | if (params->family_id != 0x74371000 || xhci_ec_base == 0) |
| 719 | return; |
| 720 | brcmusb_writel(0xa20c, USB_XHCI_EC_REG(xhci_ec_base, IRAADR)); |
| 721 | val = brcmusb_readl(USB_XHCI_EC_REG(xhci_ec_base, IRADAT)); |
| 722 | |
| 723 | /* set cfg_pick_ss_lock */ |
| 724 | val |= (1 << 27); |
| 725 | brcmusb_writel(val, USB_XHCI_EC_REG(xhci_ec_base, IRADAT)); |
| 726 | |
| 727 | /* Reset USB 3.0 PHY for workaround to take effect */ |
| 728 | USB_CTRL_UNSET(params->ctrl_regs, USB30_CTL1, PHY3_RESETB); |
| 729 | USB_CTRL_SET(params->ctrl_regs, USB30_CTL1, PHY3_RESETB); |
| 730 | } |
| 731 | |
| 732 | static void brcmusb_xhci_soft_reset(struct brcm_usb_init_params *params, |
| 733 | int on_off) |
| 734 | { |
| 735 | /* Assert reset */ |
| 736 | if (on_off) { |
| 737 | if (USB_CTRL_MASK_FAMILY(params, USB_PM, XHC_SOFT_RESETB)) |
| 738 | USB_CTRL_UNSET_FAMILY(params, USB_PM, XHC_SOFT_RESETB); |
| 739 | else |
| 740 | USB_CTRL_UNSET_FAMILY(params, |
| 741 | USB30_CTL1, XHC_SOFT_RESETB); |
| 742 | } else { /* De-assert reset */ |
| 743 | if (USB_CTRL_MASK_FAMILY(params, USB_PM, XHC_SOFT_RESETB)) |
| 744 | USB_CTRL_SET_FAMILY(params, USB_PM, XHC_SOFT_RESETB); |
| 745 | else |
| 746 | USB_CTRL_SET_FAMILY(params, USB30_CTL1, |
| 747 | XHC_SOFT_RESETB); |
| 748 | } |
| 749 | } |
| 750 | |
| 751 | /* |
| 752 | * Return the best map table family. The order is: |
| 753 | * - exact match of chip and major rev |
| 754 | * - exact match of chip and closest older major rev |
| 755 | * - default chip/rev. |
| 756 | * NOTE: The minor rev is always ignored. |
| 757 | */ |
| 758 | static enum brcm_family_type brcmusb_get_family_type( |
| 759 | struct brcm_usb_init_params *params) |
| 760 | { |
| 761 | int last_type = -1; |
| 762 | u32 last_family = 0; |
| 763 | u32 family_no_major; |
| 764 | unsigned int x; |
| 765 | u32 family; |
| 766 | |
| 767 | family = params->family_id & 0xfffffff0; |
| 768 | family_no_major = params->family_id & 0xffffff00; |
| 769 | for (x = 0; id_to_type_table[x].id; x++) { |
| 770 | if (family == id_to_type_table[x].id) |
| 771 | return id_to_type_table[x].type; |
| 772 | if (family_no_major == (id_to_type_table[x].id & 0xffffff00)) |
| 773 | if (family > id_to_type_table[x].id && |
| 774 | last_family < id_to_type_table[x].id) { |
| 775 | last_family = id_to_type_table[x].id; |
| 776 | last_type = id_to_type_table[x].type; |
| 777 | } |
| 778 | } |
| 779 | |
| 780 | /* If no match, return the default family */ |
| 781 | if (last_type == -1) |
| 782 | return id_to_type_table[x].type; |
| 783 | return last_type; |
| 784 | } |
| 785 | |
| 786 | void brcm_usb_init_ipp(struct brcm_usb_init_params *params) |
| 787 | { |
| 788 | void __iomem *ctrl = params->ctrl_regs; |
| 789 | u32 reg; |
| 790 | u32 orig_reg; |
| 791 | |
| 792 | /* Starting with the 7445d0, there are no longer separate 3.0 |
| 793 | * versions of IOC and IPP. |
| 794 | */ |
| 795 | if (USB_CTRL_MASK_FAMILY(params, USB30_CTL1, USB3_IOC)) { |
| 796 | if (params->ioc) |
| 797 | USB_CTRL_SET_FAMILY(params, USB30_CTL1, USB3_IOC); |
| 798 | if (params->ipp == 1) |
| 799 | USB_CTRL_SET_FAMILY(params, USB30_CTL1, USB3_IPP); |
| 800 | } |
| 801 | |
| 802 | reg = brcmusb_readl(USB_CTRL_REG(ctrl, SETUP)); |
| 803 | orig_reg = reg; |
| 804 | if (USB_CTRL_MASK_FAMILY(params, SETUP, STRAP_CC_DRD_MODE_ENABLE_SEL)) |
| 805 | /* Never use the strap, it's going away. */ |
| 806 | reg &= ~(USB_CTRL_MASK_FAMILY(params, |
| 807 | SETUP, |
| 808 | STRAP_CC_DRD_MODE_ENABLE_SEL)); |
| 809 | if (USB_CTRL_MASK_FAMILY(params, SETUP, STRAP_IPP_SEL)) |
| 810 | if (params->ipp != 2) |
| 811 | /* override ipp strap pin (if it exits) */ |
| 812 | reg &= ~(USB_CTRL_MASK_FAMILY(params, SETUP, |
| 813 | STRAP_IPP_SEL)); |
| 814 | |
| 815 | /* Override the default OC and PP polarity */ |
| 816 | reg &= ~(USB_CTRL_MASK(SETUP, IPP) | USB_CTRL_MASK(SETUP, IOC)); |
| 817 | if (params->ioc) |
| 818 | reg |= USB_CTRL_MASK(SETUP, IOC); |
| 819 | if (params->ipp == 1 && ((reg & USB_CTRL_MASK(SETUP, IPP)) == 0)) |
| 820 | reg |= USB_CTRL_MASK(SETUP, IPP); |
| 821 | brcmusb_writel(reg, USB_CTRL_REG(ctrl, SETUP)); |
| 822 | |
| 823 | /* |
| 824 | * If we're changing IPP, make sure power is off long enough |
| 825 | * to turn off any connected devices. |
| 826 | */ |
| 827 | if (reg != orig_reg) |
| 828 | msleep(50); |
| 829 | } |
| 830 | |
| 831 | int brcm_usb_init_get_dual_select(struct brcm_usb_init_params *params) |
| 832 | { |
| 833 | void __iomem *ctrl = params->ctrl_regs; |
| 834 | u32 reg = 0; |
| 835 | |
| 836 | if (USB_CTRL_MASK_FAMILY(params, USB_DEVICE_CTL1, PORT_MODE)) { |
| 837 | reg = brcmusb_readl(USB_CTRL_REG(ctrl, USB_DEVICE_CTL1)); |
| 838 | reg &= USB_CTRL_MASK_FAMILY(params, USB_DEVICE_CTL1, |
| 839 | PORT_MODE); |
| 840 | } |
| 841 | return reg; |
| 842 | } |
| 843 | |
| 844 | void brcm_usb_init_set_dual_select(struct brcm_usb_init_params *params, |
| 845 | int mode) |
| 846 | { |
| 847 | void __iomem *ctrl = params->ctrl_regs; |
| 848 | u32 reg; |
| 849 | |
| 850 | if (USB_CTRL_MASK_FAMILY(params, USB_DEVICE_CTL1, PORT_MODE)) { |
| 851 | reg = brcmusb_readl(USB_CTRL_REG(ctrl, USB_DEVICE_CTL1)); |
| 852 | reg &= ~USB_CTRL_MASK_FAMILY(params, USB_DEVICE_CTL1, |
| 853 | PORT_MODE); |
| 854 | reg |= mode; |
| 855 | brcmusb_writel(reg, USB_CTRL_REG(ctrl, USB_DEVICE_CTL1)); |
| 856 | } |
| 857 | } |
| 858 | |
| 859 | void brcm_usb_init_common(struct brcm_usb_init_params *params) |
| 860 | { |
| 861 | u32 reg; |
| 862 | void __iomem *ctrl = params->ctrl_regs; |
| 863 | |
| 864 | /* Take USB out of power down */ |
| 865 | if (USB_CTRL_MASK_FAMILY(params, PLL_CTL, PLL_IDDQ_PWRDN)) { |
| 866 | USB_CTRL_UNSET_FAMILY(params, PLL_CTL, PLL_IDDQ_PWRDN); |
| 867 | /* 1 millisecond - for USB clocks to settle down */ |
| 868 | usleep_range(1000, 2000); |
| 869 | } |
| 870 | |
| 871 | if (USB_CTRL_MASK_FAMILY(params, USB_PM, USB_PWRDN)) { |
| 872 | USB_CTRL_UNSET_FAMILY(params, USB_PM, USB_PWRDN); |
| 873 | /* 1 millisecond - for USB clocks to settle down */ |
| 874 | usleep_range(1000, 2000); |
| 875 | } |
| 876 | |
| 877 | if (params->selected_family != BRCM_FAMILY_74371A0 && |
| 878 | (BRCM_ID(params->family_id) != 0x7364)) |
| 879 | /* |
| 880 | * HW7439-637: 7439a0 and its derivatives do not have large |
| 881 | * enough descriptor storage for this. |
| 882 | */ |
| 883 | USB_CTRL_SET_FAMILY(params, SETUP, SS_EHCI64BIT_EN); |
| 884 | |
| 885 | /* Block auto PLL suspend by USB2 PHY (Sasi) */ |
| 886 | USB_CTRL_SET(ctrl, PLL_CTL, PLL_SUSPEND_EN); |
| 887 | |
| 888 | reg = brcmusb_readl(USB_CTRL_REG(ctrl, SETUP)); |
| 889 | if (params->selected_family == BRCM_FAMILY_7364A0) |
| 890 | /* Suppress overcurrent indication from USB30 ports for A0 */ |
| 891 | reg |= USB_CTRL_MASK_FAMILY(params, SETUP, OC3_DISABLE); |
| 892 | |
| 893 | brcmusb_usb_phy_ldo_fix(ctrl); |
| 894 | brcmusb_usb2_eye_fix(ctrl); |
| 895 | |
| 896 | /* |
| 897 | * Make sure the the second and third memory controller |
| 898 | * interfaces are enabled if they exist. |
| 899 | */ |
| 900 | if (USB_CTRL_MASK_FAMILY(params, SETUP, SCB1_EN)) |
| 901 | reg |= USB_CTRL_MASK_FAMILY(params, SETUP, SCB1_EN); |
| 902 | if (USB_CTRL_MASK_FAMILY(params, SETUP, SCB2_EN)) |
| 903 | reg |= USB_CTRL_MASK_FAMILY(params, SETUP, SCB2_EN); |
| 904 | brcmusb_writel(reg, USB_CTRL_REG(ctrl, SETUP)); |
| 905 | |
| 906 | brcmusb_memc_fix(params); |
| 907 | |
| 908 | if (USB_CTRL_MASK_FAMILY(params, USB_DEVICE_CTL1, PORT_MODE)) { |
| 909 | reg = brcmusb_readl(USB_CTRL_REG(ctrl, USB_DEVICE_CTL1)); |
| 910 | reg &= ~USB_CTRL_MASK_FAMILY(params, USB_DEVICE_CTL1, |
| 911 | PORT_MODE); |
| 912 | reg |= params->mode; |
| 913 | brcmusb_writel(reg, USB_CTRL_REG(ctrl, USB_DEVICE_CTL1)); |
| 914 | } |
| 915 | if (USB_CTRL_MASK_FAMILY(params, USB_PM, BDC_SOFT_RESETB)) { |
| 916 | switch (params->mode) { |
| 917 | case USB_CTLR_MODE_HOST: |
| 918 | USB_CTRL_UNSET_FAMILY(params, USB_PM, BDC_SOFT_RESETB); |
| 919 | break; |
| 920 | default: |
| 921 | USB_CTRL_UNSET_FAMILY(params, USB_PM, BDC_SOFT_RESETB); |
| 922 | USB_CTRL_SET_FAMILY(params, USB_PM, BDC_SOFT_RESETB); |
| 923 | break; |
| 924 | } |
| 925 | } |
| 926 | if (USB_CTRL_MASK_FAMILY(params, SETUP, CC_DRD_MODE_ENABLE)) { |
| 927 | if (params->mode == USB_CTLR_MODE_TYPEC_PD) |
| 928 | USB_CTRL_SET_FAMILY(params, SETUP, CC_DRD_MODE_ENABLE); |
| 929 | else |
| 930 | USB_CTRL_UNSET_FAMILY(params, SETUP, |
| 931 | CC_DRD_MODE_ENABLE); |
| 932 | } |
| 933 | } |
| 934 | |
| 935 | void brcm_usb_init_eohci(struct brcm_usb_init_params *params) |
| 936 | { |
| 937 | u32 reg; |
| 938 | void __iomem *ctrl = params->ctrl_regs; |
| 939 | |
| 940 | if (USB_CTRL_MASK_FAMILY(params, USB_PM, USB20_HC_RESETB)) |
| 941 | USB_CTRL_SET_FAMILY(params, USB_PM, USB20_HC_RESETB); |
| 942 | |
| 943 | if (params->selected_family == BRCM_FAMILY_7366C0) |
| 944 | /* |
| 945 | * Don't enable this so the memory controller doesn't read |
| 946 | * into memory holes. NOTE: This bit is low true on 7366C0. |
| 947 | */ |
| 948 | USB_CTRL_SET(ctrl, EBRIDGE, ESTOP_SCB_REQ); |
| 949 | |
| 950 | /* Setup the endian bits */ |
| 951 | reg = brcmusb_readl(USB_CTRL_REG(ctrl, SETUP)); |
| 952 | reg &= ~USB_CTRL_SETUP_ENDIAN_BITS; |
| 953 | reg |= USB_CTRL_MASK_FAMILY(params, SETUP, ENDIAN); |
| 954 | brcmusb_writel(reg, USB_CTRL_REG(ctrl, SETUP)); |
| 955 | |
| 956 | if (params->selected_family == BRCM_FAMILY_7271A0) |
| 957 | /* Enable LS keep alive fix for certain keyboards */ |
| 958 | USB_CTRL_SET(ctrl, OBRIDGE, LS_KEEP_ALIVE); |
| 959 | } |
| 960 | |
| 961 | void brcm_usb_init_xhci(struct brcm_usb_init_params *params) |
| 962 | { |
| 963 | void __iomem *ctrl = params->ctrl_regs; |
| 964 | |
| 965 | USB_CTRL_UNSET(ctrl, USB30_PCTL, PHY3_IDDQ_OVERRIDE); |
| 966 | /* 1 millisecond - for USB clocks to settle down */ |
| 967 | usleep_range(1000, 2000); |
| 968 | |
| 969 | if (BRCM_ID(params->family_id) == 0x7366) { |
| 970 | /* |
| 971 | * The PHY3_SOFT_RESETB bits default to the wrong state. |
| 972 | */ |
| 973 | USB_CTRL_SET(ctrl, USB30_PCTL, PHY3_SOFT_RESETB); |
| 974 | USB_CTRL_SET(ctrl, USB30_PCTL, PHY3_SOFT_RESETB_P1); |
| 975 | } |
| 976 | |
| 977 | /* |
| 978 | * Kick start USB3 PHY |
| 979 | * Make sure it's low to insure a rising edge. |
| 980 | */ |
| 981 | USB_CTRL_UNSET(ctrl, USB30_CTL1, PHY3_PLL_SEQ_START); |
| 982 | USB_CTRL_SET(ctrl, USB30_CTL1, PHY3_PLL_SEQ_START); |
| 983 | |
| 984 | brcmusb_usb3_phy_workarounds(params); |
| 985 | brcmusb_xhci_soft_reset(params, 0); |
| 986 | brcmusb_usb3_otp_fix(params); |
| 987 | } |
| 988 | |
| 989 | void brcm_usb_uninit_common(struct brcm_usb_init_params *params) |
| 990 | { |
| 991 | if (USB_CTRL_MASK_FAMILY(params, USB_PM, USB_PWRDN)) |
| 992 | USB_CTRL_SET_FAMILY(params, USB_PM, USB_PWRDN); |
| 993 | |
| 994 | if (USB_CTRL_MASK_FAMILY(params, PLL_CTL, PLL_IDDQ_PWRDN)) |
| 995 | USB_CTRL_SET_FAMILY(params, PLL_CTL, PLL_IDDQ_PWRDN); |
| 996 | } |
| 997 | |
| 998 | void brcm_usb_uninit_eohci(struct brcm_usb_init_params *params) |
| 999 | { |
| 1000 | if (USB_CTRL_MASK_FAMILY(params, USB_PM, USB20_HC_RESETB)) |
| 1001 | USB_CTRL_UNSET_FAMILY(params, USB_PM, USB20_HC_RESETB); |
| 1002 | } |
| 1003 | |
| 1004 | void brcm_usb_uninit_xhci(struct brcm_usb_init_params *params) |
| 1005 | { |
| 1006 | brcmusb_xhci_soft_reset(params, 1); |
| 1007 | USB_CTRL_SET(params->ctrl_regs, USB30_PCTL, PHY3_IDDQ_OVERRIDE); |
| 1008 | } |
| 1009 | |
| 1010 | void brcm_usb_set_family_map(struct brcm_usb_init_params *params) |
| 1011 | { |
| 1012 | int fam; |
| 1013 | |
| 1014 | fam = brcmusb_get_family_type(params); |
| 1015 | params->selected_family = fam; |
| 1016 | params->usb_reg_bits_map = |
| 1017 | &usb_reg_bits_map_table[fam][0]; |
| 1018 | params->family_name = family_names[fam]; |
| 1019 | } |