David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame^] | 1 | // SPDX-License-Identifier: GPL-2.0-only |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 2 | /* |
| 3 | * phy-brcm-usb-init.c - Broadcom USB Phy chip specific init functions |
| 4 | * |
| 5 | * Copyright (C) 2014-2017 Broadcom |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 6 | */ |
| 7 | |
| 8 | /* |
| 9 | * This module contains USB PHY initialization for power up and S3 resume |
| 10 | */ |
| 11 | |
| 12 | #include <linux/delay.h> |
| 13 | #include <linux/io.h> |
| 14 | |
| 15 | #include <linux/soc/brcmstb/brcmstb.h> |
| 16 | #include "phy-brcm-usb-init.h" |
| 17 | |
| 18 | #define PHY_PORTS 2 |
| 19 | #define PHY_PORT_SELECT_0 0 |
| 20 | #define PHY_PORT_SELECT_1 0x1000 |
| 21 | |
| 22 | /* Register definitions for the USB CTRL block */ |
| 23 | #define USB_CTRL_SETUP 0x00 |
| 24 | #define USB_CTRL_SETUP_IOC_MASK 0x00000010 |
| 25 | #define USB_CTRL_SETUP_IPP_MASK 0x00000020 |
| 26 | #define USB_CTRL_SETUP_BABO_MASK 0x00000001 |
| 27 | #define USB_CTRL_SETUP_FNHW_MASK 0x00000002 |
| 28 | #define USB_CTRL_SETUP_FNBO_MASK 0x00000004 |
| 29 | #define USB_CTRL_SETUP_WABO_MASK 0x00000008 |
| 30 | #define USB_CTRL_SETUP_SCB_CLIENT_SWAP_MASK 0x00002000 /* option */ |
| 31 | #define USB_CTRL_SETUP_SCB1_EN_MASK 0x00004000 /* option */ |
| 32 | #define USB_CTRL_SETUP_SCB2_EN_MASK 0x00008000 /* option */ |
| 33 | #define USB_CTRL_SETUP_SS_EHCI64BIT_EN_MASK 0X00020000 /* option */ |
| 34 | #define USB_CTRL_SETUP_SS_EHCI64BIT_EN_VAR_MASK 0x00010000 /* option */ |
| 35 | #define USB_CTRL_SETUP_STRAP_IPP_SEL_MASK 0x02000000 /* option */ |
| 36 | #define USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK 0x04000000 /* option */ |
| 37 | #define USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK 0x08000000 /* opt */ |
| 38 | #define USB_CTRL_SETUP_OC3_DISABLE_MASK 0xc0000000 /* option */ |
| 39 | #define USB_CTRL_PLL_CTL 0x04 |
| 40 | #define USB_CTRL_PLL_CTL_PLL_SUSPEND_EN_MASK 0x08000000 |
| 41 | #define USB_CTRL_PLL_CTL_PLL_RESETB_MASK 0x40000000 |
| 42 | #define USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK 0x80000000 /* option */ |
| 43 | #define USB_CTRL_EBRIDGE 0x0c |
| 44 | #define USB_CTRL_EBRIDGE_ESTOP_SCB_REQ_MASK 0x00020000 /* option */ |
| 45 | #define USB_CTRL_OBRIDGE 0x10 |
| 46 | #define USB_CTRL_OBRIDGE_LS_KEEP_ALIVE_MASK 0x08000000 |
| 47 | #define USB_CTRL_MDIO 0x14 |
| 48 | #define USB_CTRL_MDIO2 0x18 |
| 49 | #define USB_CTRL_UTMI_CTL_1 0x2c |
| 50 | #define USB_CTRL_UTMI_CTL_1_POWER_UP_FSM_EN_MASK 0x00000800 |
| 51 | #define USB_CTRL_UTMI_CTL_1_POWER_UP_FSM_EN_P1_MASK 0x08000000 |
| 52 | #define USB_CTRL_USB_PM 0x34 |
| 53 | #define USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK 0x00800000 /* option */ |
| 54 | #define USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK 0x00400000 /* option */ |
| 55 | #define USB_CTRL_USB_PM_XHC_SOFT_RESETB_VAR_MASK 0x40000000 /* option */ |
| 56 | #define USB_CTRL_USB_PM_USB_PWRDN_MASK 0x80000000 /* option */ |
| 57 | #define USB_CTRL_USB_PM_SOFT_RESET_MASK 0x40000000 /* option */ |
| 58 | #define USB_CTRL_USB_PM_USB20_HC_RESETB_MASK 0x30000000 /* option */ |
| 59 | #define USB_CTRL_USB_PM_USB20_HC_RESETB_VAR_MASK 0x00300000 /* option */ |
| 60 | #define USB_CTRL_USB30_CTL1 0x60 |
| 61 | #define USB_CTRL_USB30_CTL1_PHY3_PLL_SEQ_START_MASK 0x00000010 |
| 62 | #define USB_CTRL_USB30_CTL1_PHY3_RESETB_MASK 0x00010000 |
| 63 | #define USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK 0x00020000 /* option */ |
| 64 | #define USB_CTRL_USB30_CTL1_USB3_IOC_MASK 0x10000000 /* option */ |
| 65 | #define USB_CTRL_USB30_CTL1_USB3_IPP_MASK 0x20000000 /* option */ |
| 66 | #define USB_CTRL_USB30_PCTL 0x70 |
| 67 | #define USB_CTRL_USB30_PCTL_PHY3_SOFT_RESETB_MASK 0x00000002 |
| 68 | #define USB_CTRL_USB30_PCTL_PHY3_IDDQ_OVERRIDE_MASK 0x00008000 |
| 69 | #define USB_CTRL_USB30_PCTL_PHY3_SOFT_RESETB_P1_MASK 0x00020000 |
| 70 | #define USB_CTRL_USB_DEVICE_CTL1 0x90 |
| 71 | #define USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK 0x00000003 /* option */ |
| 72 | |
| 73 | /* Register definitions for the XHCI EC block */ |
| 74 | #define USB_XHCI_EC_IRAADR 0x658 |
| 75 | #define USB_XHCI_EC_IRADAT 0x65c |
| 76 | |
| 77 | enum brcm_family_type { |
| 78 | BRCM_FAMILY_3390A0, |
| 79 | BRCM_FAMILY_7250B0, |
| 80 | BRCM_FAMILY_7271A0, |
| 81 | BRCM_FAMILY_7364A0, |
| 82 | BRCM_FAMILY_7366C0, |
| 83 | BRCM_FAMILY_74371A0, |
| 84 | BRCM_FAMILY_7439B0, |
| 85 | BRCM_FAMILY_7445D0, |
| 86 | BRCM_FAMILY_7260A0, |
| 87 | BRCM_FAMILY_7278A0, |
| 88 | BRCM_FAMILY_COUNT, |
| 89 | }; |
| 90 | |
| 91 | #define USB_BRCM_FAMILY(chip) \ |
| 92 | [BRCM_FAMILY_##chip] = __stringify(chip) |
| 93 | |
| 94 | static const char *family_names[BRCM_FAMILY_COUNT] = { |
| 95 | USB_BRCM_FAMILY(3390A0), |
| 96 | USB_BRCM_FAMILY(7250B0), |
| 97 | USB_BRCM_FAMILY(7271A0), |
| 98 | USB_BRCM_FAMILY(7364A0), |
| 99 | USB_BRCM_FAMILY(7366C0), |
| 100 | USB_BRCM_FAMILY(74371A0), |
| 101 | USB_BRCM_FAMILY(7439B0), |
| 102 | USB_BRCM_FAMILY(7445D0), |
| 103 | USB_BRCM_FAMILY(7260A0), |
| 104 | USB_BRCM_FAMILY(7278A0), |
| 105 | }; |
| 106 | |
| 107 | enum { |
| 108 | USB_CTRL_SETUP_SCB1_EN_SELECTOR, |
| 109 | USB_CTRL_SETUP_SCB2_EN_SELECTOR, |
| 110 | USB_CTRL_SETUP_SS_EHCI64BIT_EN_SELECTOR, |
| 111 | USB_CTRL_SETUP_STRAP_IPP_SEL_SELECTOR, |
| 112 | USB_CTRL_SETUP_OC3_DISABLE_SELECTOR, |
| 113 | USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_SELECTOR, |
| 114 | USB_CTRL_USB_PM_BDC_SOFT_RESETB_SELECTOR, |
| 115 | USB_CTRL_USB_PM_XHC_SOFT_RESETB_SELECTOR, |
| 116 | USB_CTRL_USB_PM_USB_PWRDN_SELECTOR, |
| 117 | USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_SELECTOR, |
| 118 | USB_CTRL_USB30_CTL1_USB3_IOC_SELECTOR, |
| 119 | USB_CTRL_USB30_CTL1_USB3_IPP_SELECTOR, |
| 120 | USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_SELECTOR, |
| 121 | USB_CTRL_USB_PM_SOFT_RESET_SELECTOR, |
| 122 | USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_SELECTOR, |
| 123 | USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_SELECTOR, |
| 124 | USB_CTRL_USB_PM_USB20_HC_RESETB_SELECTOR, |
| 125 | USB_CTRL_SETUP_ENDIAN_SELECTOR, |
| 126 | USB_CTRL_SELECTOR_COUNT, |
| 127 | }; |
| 128 | |
| 129 | #define USB_CTRL_REG(base, reg) ((void *)base + USB_CTRL_##reg) |
| 130 | #define USB_XHCI_EC_REG(base, reg) ((void *)base + USB_XHCI_EC_##reg) |
| 131 | #define USB_CTRL_MASK(reg, field) \ |
| 132 | USB_CTRL_##reg##_##field##_MASK |
| 133 | #define USB_CTRL_MASK_FAMILY(params, reg, field) \ |
| 134 | (params->usb_reg_bits_map[USB_CTRL_##reg##_##field##_SELECTOR]) |
| 135 | |
| 136 | #define USB_CTRL_SET_FAMILY(params, reg, field) \ |
| 137 | usb_ctrl_set_family(params, USB_CTRL_##reg, \ |
| 138 | USB_CTRL_##reg##_##field##_SELECTOR) |
| 139 | #define USB_CTRL_UNSET_FAMILY(params, reg, field) \ |
| 140 | usb_ctrl_unset_family(params, USB_CTRL_##reg, \ |
| 141 | USB_CTRL_##reg##_##field##_SELECTOR) |
| 142 | |
| 143 | #define USB_CTRL_SET(base, reg, field) \ |
| 144 | usb_ctrl_set(USB_CTRL_REG(base, reg), \ |
| 145 | USB_CTRL_##reg##_##field##_MASK) |
| 146 | #define USB_CTRL_UNSET(base, reg, field) \ |
| 147 | usb_ctrl_unset(USB_CTRL_REG(base, reg), \ |
| 148 | USB_CTRL_##reg##_##field##_MASK) |
| 149 | |
| 150 | #define MDIO_USB2 0 |
| 151 | #define MDIO_USB3 BIT(31) |
| 152 | |
| 153 | #define USB_CTRL_SETUP_ENDIAN_BITS ( \ |
| 154 | USB_CTRL_MASK(SETUP, BABO) | \ |
| 155 | USB_CTRL_MASK(SETUP, FNHW) | \ |
| 156 | USB_CTRL_MASK(SETUP, FNBO) | \ |
| 157 | USB_CTRL_MASK(SETUP, WABO)) |
| 158 | |
| 159 | #ifdef __LITTLE_ENDIAN |
| 160 | #define ENDIAN_SETTINGS ( \ |
| 161 | USB_CTRL_MASK(SETUP, BABO) | \ |
| 162 | USB_CTRL_MASK(SETUP, FNHW)) |
| 163 | #else |
| 164 | #define ENDIAN_SETTINGS ( \ |
| 165 | USB_CTRL_MASK(SETUP, FNHW) | \ |
| 166 | USB_CTRL_MASK(SETUP, FNBO) | \ |
| 167 | USB_CTRL_MASK(SETUP, WABO)) |
| 168 | #endif |
| 169 | |
| 170 | struct id_to_type { |
| 171 | u32 id; |
| 172 | int type; |
| 173 | }; |
| 174 | |
| 175 | static const struct id_to_type id_to_type_table[] = { |
| 176 | { 0x33900000, BRCM_FAMILY_3390A0 }, |
| 177 | { 0x72500010, BRCM_FAMILY_7250B0 }, |
| 178 | { 0x72600000, BRCM_FAMILY_7260A0 }, |
| 179 | { 0x72680000, BRCM_FAMILY_7271A0 }, |
| 180 | { 0x72710000, BRCM_FAMILY_7271A0 }, |
| 181 | { 0x73640000, BRCM_FAMILY_7364A0 }, |
| 182 | { 0x73660020, BRCM_FAMILY_7366C0 }, |
| 183 | { 0x07437100, BRCM_FAMILY_74371A0 }, |
| 184 | { 0x74390010, BRCM_FAMILY_7439B0 }, |
| 185 | { 0x74450030, BRCM_FAMILY_7445D0 }, |
| 186 | { 0x72780000, BRCM_FAMILY_7278A0 }, |
| 187 | { 0, BRCM_FAMILY_7271A0 }, /* default */ |
| 188 | }; |
| 189 | |
| 190 | static const u32 |
| 191 | usb_reg_bits_map_table[BRCM_FAMILY_COUNT][USB_CTRL_SELECTOR_COUNT] = { |
| 192 | /* 3390B0 */ |
| 193 | [BRCM_FAMILY_3390A0] = { |
| 194 | USB_CTRL_SETUP_SCB1_EN_MASK, |
| 195 | USB_CTRL_SETUP_SCB2_EN_MASK, |
| 196 | USB_CTRL_SETUP_SS_EHCI64BIT_EN_MASK, |
| 197 | USB_CTRL_SETUP_STRAP_IPP_SEL_MASK, |
| 198 | USB_CTRL_SETUP_OC3_DISABLE_MASK, |
| 199 | 0, /* USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK */ |
| 200 | 0, /* USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK */ |
| 201 | USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK, |
| 202 | USB_CTRL_USB_PM_USB_PWRDN_MASK, |
| 203 | 0, /* USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK */ |
| 204 | 0, /* USB_CTRL_USB30_CTL1_USB3_IOC_MASK */ |
| 205 | 0, /* USB_CTRL_USB30_CTL1_USB3_IPP_MASK */ |
| 206 | USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK, |
| 207 | 0, /* USB_CTRL_USB_PM_SOFT_RESET_MASK */ |
| 208 | 0, /* USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK */ |
| 209 | 0, /* USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK */ |
| 210 | USB_CTRL_USB_PM_USB20_HC_RESETB_VAR_MASK, |
| 211 | ENDIAN_SETTINGS, /* USB_CTRL_SETUP ENDIAN bits */ |
| 212 | }, |
| 213 | /* 7250b0 */ |
| 214 | [BRCM_FAMILY_7250B0] = { |
| 215 | USB_CTRL_SETUP_SCB1_EN_MASK, |
| 216 | USB_CTRL_SETUP_SCB2_EN_MASK, |
| 217 | USB_CTRL_SETUP_SS_EHCI64BIT_EN_MASK, |
| 218 | 0, /* USB_CTRL_SETUP_STRAP_IPP_SEL_MASK */ |
| 219 | USB_CTRL_SETUP_OC3_DISABLE_MASK, |
| 220 | USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK, |
| 221 | 0, /* USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK */ |
| 222 | USB_CTRL_USB_PM_XHC_SOFT_RESETB_VAR_MASK, |
| 223 | 0, /* USB_CTRL_USB_PM_USB_PWRDN_MASK */ |
| 224 | 0, /* USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK */ |
| 225 | 0, /* USB_CTRL_USB30_CTL1_USB3_IOC_MASK */ |
| 226 | 0, /* USB_CTRL_USB30_CTL1_USB3_IPP_MASK */ |
| 227 | 0, /* USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK */ |
| 228 | 0, /* USB_CTRL_USB_PM_SOFT_RESET_MASK */ |
| 229 | 0, /* USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK */ |
| 230 | 0, /* USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK */ |
| 231 | USB_CTRL_USB_PM_USB20_HC_RESETB_MASK, |
| 232 | ENDIAN_SETTINGS, /* USB_CTRL_SETUP ENDIAN bits */ |
| 233 | }, |
| 234 | /* 7271a0 */ |
| 235 | [BRCM_FAMILY_7271A0] = { |
| 236 | 0, /* USB_CTRL_SETUP_SCB1_EN_MASK */ |
| 237 | 0, /* USB_CTRL_SETUP_SCB2_EN_MASK */ |
| 238 | USB_CTRL_SETUP_SS_EHCI64BIT_EN_MASK, |
| 239 | USB_CTRL_SETUP_STRAP_IPP_SEL_MASK, |
| 240 | USB_CTRL_SETUP_OC3_DISABLE_MASK, |
| 241 | 0, /* USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK */ |
| 242 | USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK, |
| 243 | USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK, |
| 244 | USB_CTRL_USB_PM_USB_PWRDN_MASK, |
| 245 | 0, /* USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK */ |
| 246 | 0, /* USB_CTRL_USB30_CTL1_USB3_IOC_MASK */ |
| 247 | 0, /* USB_CTRL_USB30_CTL1_USB3_IPP_MASK */ |
| 248 | USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK, |
| 249 | USB_CTRL_USB_PM_SOFT_RESET_MASK, |
| 250 | USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK, |
| 251 | USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK, |
| 252 | USB_CTRL_USB_PM_USB20_HC_RESETB_VAR_MASK, |
| 253 | ENDIAN_SETTINGS, /* USB_CTRL_SETUP ENDIAN bits */ |
| 254 | }, |
| 255 | /* 7364a0 */ |
| 256 | [BRCM_FAMILY_7364A0] = { |
| 257 | USB_CTRL_SETUP_SCB1_EN_MASK, |
| 258 | USB_CTRL_SETUP_SCB2_EN_MASK, |
| 259 | USB_CTRL_SETUP_SS_EHCI64BIT_EN_MASK, |
| 260 | 0, /* USB_CTRL_SETUP_STRAP_IPP_SEL_MASK */ |
| 261 | USB_CTRL_SETUP_OC3_DISABLE_MASK, |
| 262 | USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK, |
| 263 | 0, /* USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK */ |
| 264 | USB_CTRL_USB_PM_XHC_SOFT_RESETB_VAR_MASK, |
| 265 | 0, /* USB_CTRL_USB_PM_USB_PWRDN_MASK */ |
| 266 | 0, /* USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK */ |
| 267 | 0, /* USB_CTRL_USB30_CTL1_USB3_IOC_MASK */ |
| 268 | 0, /* USB_CTRL_USB30_CTL1_USB3_IPP_MASK */ |
| 269 | 0, /* USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK */ |
| 270 | 0, /* USB_CTRL_USB_PM_SOFT_RESET_MASK */ |
| 271 | 0, /* USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK */ |
| 272 | 0, /* USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK */ |
| 273 | USB_CTRL_USB_PM_USB20_HC_RESETB_MASK, |
| 274 | ENDIAN_SETTINGS, /* USB_CTRL_SETUP ENDIAN bits */ |
| 275 | }, |
| 276 | /* 7366c0 */ |
| 277 | [BRCM_FAMILY_7366C0] = { |
| 278 | USB_CTRL_SETUP_SCB1_EN_MASK, |
| 279 | USB_CTRL_SETUP_SCB2_EN_MASK, |
| 280 | USB_CTRL_SETUP_SS_EHCI64BIT_EN_MASK, |
| 281 | 0, /* USB_CTRL_SETUP_STRAP_IPP_SEL_MASK */ |
| 282 | USB_CTRL_SETUP_OC3_DISABLE_MASK, |
| 283 | 0, /* USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK */ |
| 284 | 0, /* USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK */ |
| 285 | USB_CTRL_USB_PM_XHC_SOFT_RESETB_VAR_MASK, |
| 286 | USB_CTRL_USB_PM_USB_PWRDN_MASK, |
| 287 | 0, /* USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK */ |
| 288 | 0, /* USB_CTRL_USB30_CTL1_USB3_IOC_MASK */ |
| 289 | 0, /* USB_CTRL_USB30_CTL1_USB3_IPP_MASK */ |
| 290 | 0, /* USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK */ |
| 291 | 0, /* USB_CTRL_USB_PM_SOFT_RESET_MASK */ |
| 292 | 0, /* USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK */ |
| 293 | 0, /* USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK */ |
| 294 | USB_CTRL_USB_PM_USB20_HC_RESETB_MASK, |
| 295 | ENDIAN_SETTINGS, /* USB_CTRL_SETUP ENDIAN bits */ |
| 296 | }, |
| 297 | /* 74371A0 */ |
| 298 | [BRCM_FAMILY_74371A0] = { |
| 299 | USB_CTRL_SETUP_SCB1_EN_MASK, |
| 300 | USB_CTRL_SETUP_SCB2_EN_MASK, |
| 301 | USB_CTRL_SETUP_SS_EHCI64BIT_EN_VAR_MASK, |
| 302 | 0, /* USB_CTRL_SETUP_STRAP_IPP_SEL_MASK */ |
| 303 | 0, /* USB_CTRL_SETUP_OC3_DISABLE_MASK */ |
| 304 | USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK, |
| 305 | 0, /* USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK */ |
| 306 | 0, /* USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK */ |
| 307 | 0, /* USB_CTRL_USB_PM_USB_PWRDN_MASK */ |
| 308 | USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK, |
| 309 | USB_CTRL_USB30_CTL1_USB3_IOC_MASK, |
| 310 | USB_CTRL_USB30_CTL1_USB3_IPP_MASK, |
| 311 | 0, /* USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK */ |
| 312 | 0, /* USB_CTRL_USB_PM_SOFT_RESET_MASK */ |
| 313 | 0, /* USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK */ |
| 314 | 0, /* USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK */ |
| 315 | 0, /* USB_CTRL_USB_PM_USB20_HC_RESETB_MASK */ |
| 316 | ENDIAN_SETTINGS, /* USB_CTRL_SETUP ENDIAN bits */ |
| 317 | }, |
| 318 | /* 7439B0 */ |
| 319 | [BRCM_FAMILY_7439B0] = { |
| 320 | USB_CTRL_SETUP_SCB1_EN_MASK, |
| 321 | USB_CTRL_SETUP_SCB2_EN_MASK, |
| 322 | USB_CTRL_SETUP_SS_EHCI64BIT_EN_MASK, |
| 323 | USB_CTRL_SETUP_STRAP_IPP_SEL_MASK, |
| 324 | USB_CTRL_SETUP_OC3_DISABLE_MASK, |
| 325 | 0, /* USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK */ |
| 326 | USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK, |
| 327 | USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK, |
| 328 | USB_CTRL_USB_PM_USB_PWRDN_MASK, |
| 329 | 0, /* USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK */ |
| 330 | 0, /* USB_CTRL_USB30_CTL1_USB3_IOC_MASK */ |
| 331 | 0, /* USB_CTRL_USB30_CTL1_USB3_IPP_MASK */ |
| 332 | USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK, |
| 333 | 0, /* USB_CTRL_USB_PM_SOFT_RESET_MASK */ |
| 334 | 0, /* USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK */ |
| 335 | 0, /* USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK */ |
| 336 | USB_CTRL_USB_PM_USB20_HC_RESETB_VAR_MASK, |
| 337 | ENDIAN_SETTINGS, /* USB_CTRL_SETUP ENDIAN bits */ |
| 338 | }, |
| 339 | /* 7445d0 */ |
| 340 | [BRCM_FAMILY_7445D0] = { |
| 341 | USB_CTRL_SETUP_SCB1_EN_MASK, |
| 342 | USB_CTRL_SETUP_SCB2_EN_MASK, |
| 343 | USB_CTRL_SETUP_SS_EHCI64BIT_EN_VAR_MASK, |
| 344 | 0, /* USB_CTRL_SETUP_STRAP_IPP_SEL_MASK */ |
| 345 | USB_CTRL_SETUP_OC3_DISABLE_MASK, |
| 346 | USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK, |
| 347 | 0, /* USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK */ |
| 348 | 0, /* USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK */ |
| 349 | 0, /* USB_CTRL_USB_PM_USB_PWRDN_MASK */ |
| 350 | USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK, |
| 351 | 0, /* USB_CTRL_USB30_CTL1_USB3_IOC_MASK */ |
| 352 | 0, /* USB_CTRL_USB30_CTL1_USB3_IPP_MASK */ |
| 353 | 0, /* USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK */ |
| 354 | 0, /* USB_CTRL_USB_PM_SOFT_RESET_MASK */ |
| 355 | 0, /* USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK */ |
| 356 | 0, /* USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK */ |
| 357 | USB_CTRL_USB_PM_USB20_HC_RESETB_VAR_MASK, |
| 358 | ENDIAN_SETTINGS, /* USB_CTRL_SETUP ENDIAN bits */ |
| 359 | }, |
| 360 | /* 7260a0 */ |
| 361 | [BRCM_FAMILY_7260A0] = { |
| 362 | 0, /* USB_CTRL_SETUP_SCB1_EN_MASK */ |
| 363 | 0, /* USB_CTRL_SETUP_SCB2_EN_MASK */ |
| 364 | USB_CTRL_SETUP_SS_EHCI64BIT_EN_MASK, |
| 365 | USB_CTRL_SETUP_STRAP_IPP_SEL_MASK, |
| 366 | USB_CTRL_SETUP_OC3_DISABLE_MASK, |
| 367 | 0, /* USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK */ |
| 368 | USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK, |
| 369 | USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK, |
| 370 | USB_CTRL_USB_PM_USB_PWRDN_MASK, |
| 371 | 0, /* USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK */ |
| 372 | 0, /* USB_CTRL_USB30_CTL1_USB3_IOC_MASK */ |
| 373 | 0, /* USB_CTRL_USB30_CTL1_USB3_IPP_MASK */ |
| 374 | USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK, |
| 375 | USB_CTRL_USB_PM_SOFT_RESET_MASK, |
| 376 | USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK, |
| 377 | USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK, |
| 378 | USB_CTRL_USB_PM_USB20_HC_RESETB_VAR_MASK, |
| 379 | ENDIAN_SETTINGS, /* USB_CTRL_SETUP ENDIAN bits */ |
| 380 | }, |
| 381 | /* 7278a0 */ |
| 382 | [BRCM_FAMILY_7278A0] = { |
| 383 | 0, /* USB_CTRL_SETUP_SCB1_EN_MASK */ |
| 384 | 0, /* USB_CTRL_SETUP_SCB2_EN_MASK */ |
| 385 | 0, /*USB_CTRL_SETUP_SS_EHCI64BIT_EN_MASK */ |
| 386 | USB_CTRL_SETUP_STRAP_IPP_SEL_MASK, |
| 387 | USB_CTRL_SETUP_OC3_DISABLE_MASK, |
| 388 | 0, /* USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK */ |
| 389 | USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK, |
| 390 | USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK, |
| 391 | USB_CTRL_USB_PM_USB_PWRDN_MASK, |
| 392 | 0, /* USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK */ |
| 393 | 0, /* USB_CTRL_USB30_CTL1_USB3_IOC_MASK */ |
| 394 | 0, /* USB_CTRL_USB30_CTL1_USB3_IPP_MASK */ |
| 395 | USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK, |
| 396 | USB_CTRL_USB_PM_SOFT_RESET_MASK, |
| 397 | 0, /* USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK */ |
| 398 | 0, /* USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK */ |
| 399 | 0, /* USB_CTRL_USB_PM_USB20_HC_RESETB_MASK */ |
| 400 | 0, /* USB_CTRL_SETUP ENDIAN bits */ |
| 401 | }, |
| 402 | }; |
| 403 | |
| 404 | static inline u32 brcmusb_readl(void __iomem *addr) |
| 405 | { |
| 406 | return readl(addr); |
| 407 | } |
| 408 | |
| 409 | static inline void brcmusb_writel(u32 val, void __iomem *addr) |
| 410 | { |
| 411 | writel(val, addr); |
| 412 | } |
| 413 | |
| 414 | static inline |
| 415 | void usb_ctrl_unset_family(struct brcm_usb_init_params *params, |
| 416 | u32 reg_offset, u32 field) |
| 417 | { |
| 418 | u32 mask; |
| 419 | void *reg; |
| 420 | |
| 421 | mask = params->usb_reg_bits_map[field]; |
| 422 | reg = params->ctrl_regs + reg_offset; |
| 423 | brcmusb_writel(brcmusb_readl(reg) & ~mask, reg); |
| 424 | }; |
| 425 | |
| 426 | static inline |
| 427 | void usb_ctrl_set_family(struct brcm_usb_init_params *params, |
| 428 | u32 reg_offset, u32 field) |
| 429 | { |
| 430 | u32 mask; |
| 431 | void *reg; |
| 432 | |
| 433 | mask = params->usb_reg_bits_map[field]; |
| 434 | reg = params->ctrl_regs + reg_offset; |
| 435 | brcmusb_writel(brcmusb_readl(reg) | mask, reg); |
| 436 | }; |
| 437 | |
| 438 | static inline void usb_ctrl_set(void __iomem *reg, u32 field) |
| 439 | { |
| 440 | u32 value; |
| 441 | |
| 442 | value = brcmusb_readl(reg); |
| 443 | brcmusb_writel(value | field, reg); |
| 444 | } |
| 445 | |
| 446 | static inline void usb_ctrl_unset(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 u32 brcmusb_usb_mdio_read(void __iomem *ctrl_base, u32 reg, int mode) |
| 455 | { |
| 456 | u32 data; |
| 457 | |
| 458 | data = (reg << 16) | mode; |
| 459 | brcmusb_writel(data, USB_CTRL_REG(ctrl_base, MDIO)); |
| 460 | data |= (1 << 24); |
| 461 | brcmusb_writel(data, USB_CTRL_REG(ctrl_base, MDIO)); |
| 462 | data &= ~(1 << 24); |
| 463 | /* wait for the 60MHz parallel to serial shifter */ |
| 464 | usleep_range(10, 20); |
| 465 | brcmusb_writel(data, USB_CTRL_REG(ctrl_base, MDIO)); |
| 466 | /* wait for the 60MHz parallel to serial shifter */ |
| 467 | usleep_range(10, 20); |
| 468 | |
| 469 | return brcmusb_readl(USB_CTRL_REG(ctrl_base, MDIO2)) & 0xffff; |
| 470 | } |
| 471 | |
| 472 | static void brcmusb_usb_mdio_write(void __iomem *ctrl_base, u32 reg, |
| 473 | u32 val, int mode) |
| 474 | { |
| 475 | u32 data; |
| 476 | |
| 477 | data = (reg << 16) | val | mode; |
| 478 | brcmusb_writel(data, USB_CTRL_REG(ctrl_base, MDIO)); |
| 479 | data |= (1 << 25); |
| 480 | brcmusb_writel(data, USB_CTRL_REG(ctrl_base, MDIO)); |
| 481 | data &= ~(1 << 25); |
| 482 | |
| 483 | /* wait for the 60MHz parallel to serial shifter */ |
| 484 | usleep_range(10, 20); |
| 485 | brcmusb_writel(data, USB_CTRL_REG(ctrl_base, MDIO)); |
| 486 | /* wait for the 60MHz parallel to serial shifter */ |
| 487 | usleep_range(10, 20); |
| 488 | } |
| 489 | |
| 490 | static void brcmusb_usb_phy_ldo_fix(void __iomem *ctrl_base) |
| 491 | { |
| 492 | /* first disable FSM but also leave it that way */ |
| 493 | /* to allow normal suspend/resume */ |
| 494 | USB_CTRL_UNSET(ctrl_base, UTMI_CTL_1, POWER_UP_FSM_EN); |
| 495 | USB_CTRL_UNSET(ctrl_base, UTMI_CTL_1, POWER_UP_FSM_EN_P1); |
| 496 | |
| 497 | /* reset USB 2.0 PLL */ |
| 498 | USB_CTRL_UNSET(ctrl_base, PLL_CTL, PLL_RESETB); |
| 499 | /* PLL reset period */ |
| 500 | udelay(1); |
| 501 | USB_CTRL_SET(ctrl_base, PLL_CTL, PLL_RESETB); |
| 502 | /* Give PLL enough time to lock */ |
| 503 | usleep_range(1000, 2000); |
| 504 | } |
| 505 | |
| 506 | static void brcmusb_usb2_eye_fix(void __iomem *ctrl_base) |
| 507 | { |
| 508 | /* Increase USB 2.0 TX level to meet spec requirement */ |
| 509 | brcmusb_usb_mdio_write(ctrl_base, 0x1f, 0x80a0, MDIO_USB2); |
| 510 | brcmusb_usb_mdio_write(ctrl_base, 0x0a, 0xc6a0, MDIO_USB2); |
| 511 | } |
| 512 | |
| 513 | static void brcmusb_usb3_pll_fix(void __iomem *ctrl_base) |
| 514 | { |
| 515 | /* Set correct window for PLL lock detect */ |
| 516 | brcmusb_usb_mdio_write(ctrl_base, 0x1f, 0x8000, MDIO_USB3); |
| 517 | brcmusb_usb_mdio_write(ctrl_base, 0x07, 0x1503, MDIO_USB3); |
| 518 | } |
| 519 | |
| 520 | static void brcmusb_usb3_enable_pipe_reset(void __iomem *ctrl_base) |
| 521 | { |
| 522 | u32 val; |
| 523 | |
| 524 | /* Re-enable USB 3.0 pipe reset */ |
| 525 | brcmusb_usb_mdio_write(ctrl_base, 0x1f, 0x8000, MDIO_USB3); |
| 526 | val = brcmusb_usb_mdio_read(ctrl_base, 0x0f, MDIO_USB3) | 0x200; |
| 527 | brcmusb_usb_mdio_write(ctrl_base, 0x0f, val, MDIO_USB3); |
| 528 | } |
| 529 | |
| 530 | static void brcmusb_usb3_enable_sigdet(void __iomem *ctrl_base) |
| 531 | { |
| 532 | u32 val, ofs; |
| 533 | int ii; |
| 534 | |
| 535 | ofs = 0; |
| 536 | for (ii = 0; ii < PHY_PORTS; ++ii) { |
| 537 | /* Set correct default for sigdet */ |
| 538 | brcmusb_usb_mdio_write(ctrl_base, 0x1f, (0x8080 + ofs), |
| 539 | MDIO_USB3); |
| 540 | val = brcmusb_usb_mdio_read(ctrl_base, 0x05, MDIO_USB3); |
| 541 | val = (val & ~0x800f) | 0x800d; |
| 542 | brcmusb_usb_mdio_write(ctrl_base, 0x05, val, MDIO_USB3); |
| 543 | ofs = PHY_PORT_SELECT_1; |
| 544 | } |
| 545 | } |
| 546 | |
| 547 | static void brcmusb_usb3_enable_skip_align(void __iomem *ctrl_base) |
| 548 | { |
| 549 | u32 val, ofs; |
| 550 | int ii; |
| 551 | |
| 552 | ofs = 0; |
| 553 | for (ii = 0; ii < PHY_PORTS; ++ii) { |
| 554 | /* Set correct default for SKIP align */ |
| 555 | brcmusb_usb_mdio_write(ctrl_base, 0x1f, (0x8060 + ofs), |
| 556 | MDIO_USB3); |
| 557 | val = brcmusb_usb_mdio_read(ctrl_base, 0x01, MDIO_USB3) | 0x200; |
| 558 | brcmusb_usb_mdio_write(ctrl_base, 0x01, val, MDIO_USB3); |
| 559 | ofs = PHY_PORT_SELECT_1; |
| 560 | } |
| 561 | } |
| 562 | |
| 563 | static void brcmusb_usb3_unfreeze_aeq(void __iomem *ctrl_base) |
| 564 | { |
| 565 | u32 val, ofs; |
| 566 | int ii; |
| 567 | |
| 568 | ofs = 0; |
| 569 | for (ii = 0; ii < PHY_PORTS; ++ii) { |
| 570 | /* Let EQ freeze after TSEQ */ |
| 571 | brcmusb_usb_mdio_write(ctrl_base, 0x1f, (0x80e0 + ofs), |
| 572 | MDIO_USB3); |
| 573 | val = brcmusb_usb_mdio_read(ctrl_base, 0x01, MDIO_USB3); |
| 574 | val &= ~0x0008; |
| 575 | brcmusb_usb_mdio_write(ctrl_base, 0x01, val, MDIO_USB3); |
| 576 | ofs = PHY_PORT_SELECT_1; |
| 577 | } |
| 578 | } |
| 579 | |
| 580 | static void brcmusb_usb3_pll_54mhz(struct brcm_usb_init_params *params) |
| 581 | { |
| 582 | u32 ofs; |
| 583 | int ii; |
| 584 | void __iomem *ctrl_base = params->ctrl_regs; |
| 585 | |
| 586 | /* |
| 587 | * On newer B53 based SoC's, the reference clock for the |
| 588 | * 3.0 PLL has been changed from 50MHz to 54MHz so the |
| 589 | * PLL needs to be reprogrammed. |
| 590 | * See SWLINUX-4006. |
| 591 | * |
| 592 | * On the 7364C0, the reference clock for the |
| 593 | * 3.0 PLL has been changed from 50MHz to 54MHz to |
| 594 | * work around a MOCA issue. |
| 595 | * See SWLINUX-4169. |
| 596 | */ |
| 597 | switch (params->selected_family) { |
| 598 | case BRCM_FAMILY_3390A0: |
| 599 | case BRCM_FAMILY_7250B0: |
| 600 | case BRCM_FAMILY_7366C0: |
| 601 | case BRCM_FAMILY_74371A0: |
| 602 | case BRCM_FAMILY_7439B0: |
| 603 | case BRCM_FAMILY_7445D0: |
| 604 | case BRCM_FAMILY_7260A0: |
| 605 | return; |
| 606 | case BRCM_FAMILY_7364A0: |
| 607 | if (BRCM_REV(params->family_id) < 0x20) |
| 608 | return; |
| 609 | break; |
| 610 | } |
| 611 | |
| 612 | /* set USB 3.0 PLL to accept 54Mhz reference clock */ |
| 613 | USB_CTRL_UNSET(ctrl_base, USB30_CTL1, PHY3_PLL_SEQ_START); |
| 614 | |
| 615 | brcmusb_usb_mdio_write(ctrl_base, 0x1f, 0x8000, MDIO_USB3); |
| 616 | brcmusb_usb_mdio_write(ctrl_base, 0x10, 0x5784, MDIO_USB3); |
| 617 | brcmusb_usb_mdio_write(ctrl_base, 0x11, 0x01d0, MDIO_USB3); |
| 618 | brcmusb_usb_mdio_write(ctrl_base, 0x12, 0x1DE8, MDIO_USB3); |
| 619 | brcmusb_usb_mdio_write(ctrl_base, 0x13, 0xAA80, MDIO_USB3); |
| 620 | brcmusb_usb_mdio_write(ctrl_base, 0x14, 0x8826, MDIO_USB3); |
| 621 | brcmusb_usb_mdio_write(ctrl_base, 0x15, 0x0044, MDIO_USB3); |
| 622 | brcmusb_usb_mdio_write(ctrl_base, 0x16, 0x8000, MDIO_USB3); |
| 623 | brcmusb_usb_mdio_write(ctrl_base, 0x17, 0x0851, MDIO_USB3); |
| 624 | brcmusb_usb_mdio_write(ctrl_base, 0x18, 0x0000, MDIO_USB3); |
| 625 | |
| 626 | /* both ports */ |
| 627 | ofs = 0; |
| 628 | for (ii = 0; ii < PHY_PORTS; ++ii) { |
| 629 | brcmusb_usb_mdio_write(ctrl_base, 0x1f, (0x8040 + ofs), |
| 630 | MDIO_USB3); |
| 631 | brcmusb_usb_mdio_write(ctrl_base, 0x03, 0x0090, MDIO_USB3); |
| 632 | brcmusb_usb_mdio_write(ctrl_base, 0x04, 0x0134, MDIO_USB3); |
| 633 | brcmusb_usb_mdio_write(ctrl_base, 0x1f, (0x8020 + ofs), |
| 634 | MDIO_USB3); |
| 635 | brcmusb_usb_mdio_write(ctrl_base, 0x01, 0x00e2, MDIO_USB3); |
| 636 | ofs = PHY_PORT_SELECT_1; |
| 637 | } |
| 638 | |
| 639 | /* restart PLL sequence */ |
| 640 | USB_CTRL_SET(ctrl_base, USB30_CTL1, PHY3_PLL_SEQ_START); |
| 641 | /* Give PLL enough time to lock */ |
| 642 | usleep_range(1000, 2000); |
| 643 | } |
| 644 | |
| 645 | static void brcmusb_usb3_ssc_enable(void __iomem *ctrl_base) |
| 646 | { |
| 647 | u32 val; |
| 648 | |
| 649 | /* Enable USB 3.0 TX spread spectrum */ |
| 650 | brcmusb_usb_mdio_write(ctrl_base, 0x1f, 0x8040, MDIO_USB3); |
| 651 | val = brcmusb_usb_mdio_read(ctrl_base, 0x01, MDIO_USB3) | 0xf; |
| 652 | brcmusb_usb_mdio_write(ctrl_base, 0x01, val, MDIO_USB3); |
| 653 | |
| 654 | /* Currently, USB 3.0 SSC is enabled via port 0 MDIO registers, |
| 655 | * which should have been adequate. However, due to a bug in the |
| 656 | * USB 3.0 PHY, it must be enabled via both ports (HWUSB3DVT-26). |
| 657 | */ |
| 658 | brcmusb_usb_mdio_write(ctrl_base, 0x1f, 0x9040, 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 | |
| 663 | static void brcmusb_usb3_phy_workarounds(struct brcm_usb_init_params *params) |
| 664 | { |
| 665 | void __iomem *ctrl_base = params->ctrl_regs; |
| 666 | |
| 667 | brcmusb_usb3_pll_fix(ctrl_base); |
| 668 | brcmusb_usb3_pll_54mhz(params); |
| 669 | brcmusb_usb3_ssc_enable(ctrl_base); |
| 670 | brcmusb_usb3_enable_pipe_reset(ctrl_base); |
| 671 | brcmusb_usb3_enable_sigdet(ctrl_base); |
| 672 | brcmusb_usb3_enable_skip_align(ctrl_base); |
| 673 | brcmusb_usb3_unfreeze_aeq(ctrl_base); |
| 674 | } |
| 675 | |
| 676 | static void brcmusb_memc_fix(struct brcm_usb_init_params *params) |
| 677 | { |
| 678 | u32 prid; |
| 679 | |
| 680 | if (params->selected_family != BRCM_FAMILY_7445D0) |
| 681 | return; |
| 682 | /* |
| 683 | * This is a workaround for HW7445-1869 where a DMA write ends up |
| 684 | * doing a read pre-fetch after the end of the DMA buffer. This |
| 685 | * causes a problem when the DMA buffer is at the end of physical |
| 686 | * memory, causing the pre-fetch read to access non-existent memory, |
| 687 | * and the chip bondout has MEMC2 disabled. When the pre-fetch read |
| 688 | * tries to use the disabled MEMC2, it hangs the bus. The workaround |
| 689 | * is to disable MEMC2 access in the usb controller which avoids |
| 690 | * the hang. |
| 691 | */ |
| 692 | |
| 693 | prid = params->product_id & 0xfffff000; |
| 694 | switch (prid) { |
| 695 | case 0x72520000: |
| 696 | case 0x74480000: |
| 697 | case 0x74490000: |
| 698 | case 0x07252000: |
| 699 | case 0x07448000: |
| 700 | case 0x07449000: |
| 701 | USB_CTRL_UNSET_FAMILY(params, SETUP, SCB2_EN); |
| 702 | } |
| 703 | } |
| 704 | |
| 705 | static void brcmusb_usb3_otp_fix(struct brcm_usb_init_params *params) |
| 706 | { |
| 707 | void __iomem *xhci_ec_base = params->xhci_ec_regs; |
| 708 | u32 val; |
| 709 | |
| 710 | if (params->family_id != 0x74371000 || xhci_ec_base == 0) |
| 711 | return; |
| 712 | brcmusb_writel(0xa20c, USB_XHCI_EC_REG(xhci_ec_base, IRAADR)); |
| 713 | val = brcmusb_readl(USB_XHCI_EC_REG(xhci_ec_base, IRADAT)); |
| 714 | |
| 715 | /* set cfg_pick_ss_lock */ |
| 716 | val |= (1 << 27); |
| 717 | brcmusb_writel(val, USB_XHCI_EC_REG(xhci_ec_base, IRADAT)); |
| 718 | |
| 719 | /* Reset USB 3.0 PHY for workaround to take effect */ |
| 720 | USB_CTRL_UNSET(params->ctrl_regs, USB30_CTL1, PHY3_RESETB); |
| 721 | USB_CTRL_SET(params->ctrl_regs, USB30_CTL1, PHY3_RESETB); |
| 722 | } |
| 723 | |
| 724 | static void brcmusb_xhci_soft_reset(struct brcm_usb_init_params *params, |
| 725 | int on_off) |
| 726 | { |
| 727 | /* Assert reset */ |
| 728 | if (on_off) { |
| 729 | if (USB_CTRL_MASK_FAMILY(params, USB_PM, XHC_SOFT_RESETB)) |
| 730 | USB_CTRL_UNSET_FAMILY(params, USB_PM, XHC_SOFT_RESETB); |
| 731 | else |
| 732 | USB_CTRL_UNSET_FAMILY(params, |
| 733 | USB30_CTL1, XHC_SOFT_RESETB); |
| 734 | } else { /* De-assert reset */ |
| 735 | if (USB_CTRL_MASK_FAMILY(params, USB_PM, XHC_SOFT_RESETB)) |
| 736 | USB_CTRL_SET_FAMILY(params, USB_PM, XHC_SOFT_RESETB); |
| 737 | else |
| 738 | USB_CTRL_SET_FAMILY(params, USB30_CTL1, |
| 739 | XHC_SOFT_RESETB); |
| 740 | } |
| 741 | } |
| 742 | |
| 743 | /* |
| 744 | * Return the best map table family. The order is: |
| 745 | * - exact match of chip and major rev |
| 746 | * - exact match of chip and closest older major rev |
| 747 | * - default chip/rev. |
| 748 | * NOTE: The minor rev is always ignored. |
| 749 | */ |
| 750 | static enum brcm_family_type brcmusb_get_family_type( |
| 751 | struct brcm_usb_init_params *params) |
| 752 | { |
| 753 | int last_type = -1; |
| 754 | u32 last_family = 0; |
| 755 | u32 family_no_major; |
| 756 | unsigned int x; |
| 757 | u32 family; |
| 758 | |
| 759 | family = params->family_id & 0xfffffff0; |
| 760 | family_no_major = params->family_id & 0xffffff00; |
| 761 | for (x = 0; id_to_type_table[x].id; x++) { |
| 762 | if (family == id_to_type_table[x].id) |
| 763 | return id_to_type_table[x].type; |
| 764 | if (family_no_major == (id_to_type_table[x].id & 0xffffff00)) |
| 765 | if (family > id_to_type_table[x].id && |
| 766 | last_family < id_to_type_table[x].id) { |
| 767 | last_family = id_to_type_table[x].id; |
| 768 | last_type = id_to_type_table[x].type; |
| 769 | } |
| 770 | } |
| 771 | |
| 772 | /* If no match, return the default family */ |
| 773 | if (last_type == -1) |
| 774 | return id_to_type_table[x].type; |
| 775 | return last_type; |
| 776 | } |
| 777 | |
| 778 | void brcm_usb_init_ipp(struct brcm_usb_init_params *params) |
| 779 | { |
| 780 | void __iomem *ctrl = params->ctrl_regs; |
| 781 | u32 reg; |
| 782 | u32 orig_reg; |
| 783 | |
| 784 | /* Starting with the 7445d0, there are no longer separate 3.0 |
| 785 | * versions of IOC and IPP. |
| 786 | */ |
| 787 | if (USB_CTRL_MASK_FAMILY(params, USB30_CTL1, USB3_IOC)) { |
| 788 | if (params->ioc) |
| 789 | USB_CTRL_SET_FAMILY(params, USB30_CTL1, USB3_IOC); |
| 790 | if (params->ipp == 1) |
| 791 | USB_CTRL_SET_FAMILY(params, USB30_CTL1, USB3_IPP); |
| 792 | } |
| 793 | |
| 794 | reg = brcmusb_readl(USB_CTRL_REG(ctrl, SETUP)); |
| 795 | orig_reg = reg; |
| 796 | if (USB_CTRL_MASK_FAMILY(params, SETUP, STRAP_CC_DRD_MODE_ENABLE_SEL)) |
| 797 | /* Never use the strap, it's going away. */ |
| 798 | reg &= ~(USB_CTRL_MASK_FAMILY(params, |
| 799 | SETUP, |
| 800 | STRAP_CC_DRD_MODE_ENABLE_SEL)); |
| 801 | if (USB_CTRL_MASK_FAMILY(params, SETUP, STRAP_IPP_SEL)) |
| 802 | if (params->ipp != 2) |
| 803 | /* override ipp strap pin (if it exits) */ |
| 804 | reg &= ~(USB_CTRL_MASK_FAMILY(params, SETUP, |
| 805 | STRAP_IPP_SEL)); |
| 806 | |
| 807 | /* Override the default OC and PP polarity */ |
| 808 | reg &= ~(USB_CTRL_MASK(SETUP, IPP) | USB_CTRL_MASK(SETUP, IOC)); |
| 809 | if (params->ioc) |
| 810 | reg |= USB_CTRL_MASK(SETUP, IOC); |
| 811 | if (params->ipp == 1 && ((reg & USB_CTRL_MASK(SETUP, IPP)) == 0)) |
| 812 | reg |= USB_CTRL_MASK(SETUP, IPP); |
| 813 | brcmusb_writel(reg, USB_CTRL_REG(ctrl, SETUP)); |
| 814 | |
| 815 | /* |
| 816 | * If we're changing IPP, make sure power is off long enough |
| 817 | * to turn off any connected devices. |
| 818 | */ |
| 819 | if (reg != orig_reg) |
| 820 | msleep(50); |
| 821 | } |
| 822 | |
| 823 | int brcm_usb_init_get_dual_select(struct brcm_usb_init_params *params) |
| 824 | { |
| 825 | void __iomem *ctrl = params->ctrl_regs; |
| 826 | u32 reg = 0; |
| 827 | |
| 828 | if (USB_CTRL_MASK_FAMILY(params, USB_DEVICE_CTL1, PORT_MODE)) { |
| 829 | reg = brcmusb_readl(USB_CTRL_REG(ctrl, USB_DEVICE_CTL1)); |
| 830 | reg &= USB_CTRL_MASK_FAMILY(params, USB_DEVICE_CTL1, |
| 831 | PORT_MODE); |
| 832 | } |
| 833 | return reg; |
| 834 | } |
| 835 | |
| 836 | void brcm_usb_init_set_dual_select(struct brcm_usb_init_params *params, |
| 837 | int mode) |
| 838 | { |
| 839 | void __iomem *ctrl = params->ctrl_regs; |
| 840 | u32 reg; |
| 841 | |
| 842 | if (USB_CTRL_MASK_FAMILY(params, USB_DEVICE_CTL1, PORT_MODE)) { |
| 843 | reg = brcmusb_readl(USB_CTRL_REG(ctrl, USB_DEVICE_CTL1)); |
| 844 | reg &= ~USB_CTRL_MASK_FAMILY(params, USB_DEVICE_CTL1, |
| 845 | PORT_MODE); |
| 846 | reg |= mode; |
| 847 | brcmusb_writel(reg, USB_CTRL_REG(ctrl, USB_DEVICE_CTL1)); |
| 848 | } |
| 849 | } |
| 850 | |
| 851 | void brcm_usb_init_common(struct brcm_usb_init_params *params) |
| 852 | { |
| 853 | u32 reg; |
| 854 | void __iomem *ctrl = params->ctrl_regs; |
| 855 | |
| 856 | /* Take USB out of power down */ |
| 857 | if (USB_CTRL_MASK_FAMILY(params, PLL_CTL, PLL_IDDQ_PWRDN)) { |
| 858 | USB_CTRL_UNSET_FAMILY(params, PLL_CTL, PLL_IDDQ_PWRDN); |
| 859 | /* 1 millisecond - for USB clocks to settle down */ |
| 860 | usleep_range(1000, 2000); |
| 861 | } |
| 862 | |
| 863 | if (USB_CTRL_MASK_FAMILY(params, USB_PM, USB_PWRDN)) { |
| 864 | USB_CTRL_UNSET_FAMILY(params, USB_PM, USB_PWRDN); |
| 865 | /* 1 millisecond - for USB clocks to settle down */ |
| 866 | usleep_range(1000, 2000); |
| 867 | } |
| 868 | |
| 869 | if (params->selected_family != BRCM_FAMILY_74371A0 && |
| 870 | (BRCM_ID(params->family_id) != 0x7364)) |
| 871 | /* |
| 872 | * HW7439-637: 7439a0 and its derivatives do not have large |
| 873 | * enough descriptor storage for this. |
| 874 | */ |
| 875 | USB_CTRL_SET_FAMILY(params, SETUP, SS_EHCI64BIT_EN); |
| 876 | |
| 877 | /* Block auto PLL suspend by USB2 PHY (Sasi) */ |
| 878 | USB_CTRL_SET(ctrl, PLL_CTL, PLL_SUSPEND_EN); |
| 879 | |
| 880 | reg = brcmusb_readl(USB_CTRL_REG(ctrl, SETUP)); |
| 881 | if (params->selected_family == BRCM_FAMILY_7364A0) |
| 882 | /* Suppress overcurrent indication from USB30 ports for A0 */ |
| 883 | reg |= USB_CTRL_MASK_FAMILY(params, SETUP, OC3_DISABLE); |
| 884 | |
| 885 | brcmusb_usb_phy_ldo_fix(ctrl); |
| 886 | brcmusb_usb2_eye_fix(ctrl); |
| 887 | |
| 888 | /* |
| 889 | * Make sure the the second and third memory controller |
| 890 | * interfaces are enabled if they exist. |
| 891 | */ |
| 892 | if (USB_CTRL_MASK_FAMILY(params, SETUP, SCB1_EN)) |
| 893 | reg |= USB_CTRL_MASK_FAMILY(params, SETUP, SCB1_EN); |
| 894 | if (USB_CTRL_MASK_FAMILY(params, SETUP, SCB2_EN)) |
| 895 | reg |= USB_CTRL_MASK_FAMILY(params, SETUP, SCB2_EN); |
| 896 | brcmusb_writel(reg, USB_CTRL_REG(ctrl, SETUP)); |
| 897 | |
| 898 | brcmusb_memc_fix(params); |
| 899 | |
| 900 | if (USB_CTRL_MASK_FAMILY(params, USB_DEVICE_CTL1, PORT_MODE)) { |
| 901 | reg = brcmusb_readl(USB_CTRL_REG(ctrl, USB_DEVICE_CTL1)); |
| 902 | reg &= ~USB_CTRL_MASK_FAMILY(params, USB_DEVICE_CTL1, |
| 903 | PORT_MODE); |
| 904 | reg |= params->mode; |
| 905 | brcmusb_writel(reg, USB_CTRL_REG(ctrl, USB_DEVICE_CTL1)); |
| 906 | } |
| 907 | if (USB_CTRL_MASK_FAMILY(params, USB_PM, BDC_SOFT_RESETB)) { |
| 908 | switch (params->mode) { |
| 909 | case USB_CTLR_MODE_HOST: |
| 910 | USB_CTRL_UNSET_FAMILY(params, USB_PM, BDC_SOFT_RESETB); |
| 911 | break; |
| 912 | default: |
| 913 | USB_CTRL_UNSET_FAMILY(params, USB_PM, BDC_SOFT_RESETB); |
| 914 | USB_CTRL_SET_FAMILY(params, USB_PM, BDC_SOFT_RESETB); |
| 915 | break; |
| 916 | } |
| 917 | } |
| 918 | if (USB_CTRL_MASK_FAMILY(params, SETUP, CC_DRD_MODE_ENABLE)) { |
| 919 | if (params->mode == USB_CTLR_MODE_TYPEC_PD) |
| 920 | USB_CTRL_SET_FAMILY(params, SETUP, CC_DRD_MODE_ENABLE); |
| 921 | else |
| 922 | USB_CTRL_UNSET_FAMILY(params, SETUP, |
| 923 | CC_DRD_MODE_ENABLE); |
| 924 | } |
| 925 | } |
| 926 | |
| 927 | void brcm_usb_init_eohci(struct brcm_usb_init_params *params) |
| 928 | { |
| 929 | u32 reg; |
| 930 | void __iomem *ctrl = params->ctrl_regs; |
| 931 | |
| 932 | if (USB_CTRL_MASK_FAMILY(params, USB_PM, USB20_HC_RESETB)) |
| 933 | USB_CTRL_SET_FAMILY(params, USB_PM, USB20_HC_RESETB); |
| 934 | |
| 935 | if (params->selected_family == BRCM_FAMILY_7366C0) |
| 936 | /* |
| 937 | * Don't enable this so the memory controller doesn't read |
| 938 | * into memory holes. NOTE: This bit is low true on 7366C0. |
| 939 | */ |
| 940 | USB_CTRL_SET(ctrl, EBRIDGE, ESTOP_SCB_REQ); |
| 941 | |
| 942 | /* Setup the endian bits */ |
| 943 | reg = brcmusb_readl(USB_CTRL_REG(ctrl, SETUP)); |
| 944 | reg &= ~USB_CTRL_SETUP_ENDIAN_BITS; |
| 945 | reg |= USB_CTRL_MASK_FAMILY(params, SETUP, ENDIAN); |
| 946 | brcmusb_writel(reg, USB_CTRL_REG(ctrl, SETUP)); |
| 947 | |
| 948 | if (params->selected_family == BRCM_FAMILY_7271A0) |
| 949 | /* Enable LS keep alive fix for certain keyboards */ |
| 950 | USB_CTRL_SET(ctrl, OBRIDGE, LS_KEEP_ALIVE); |
| 951 | } |
| 952 | |
| 953 | void brcm_usb_init_xhci(struct brcm_usb_init_params *params) |
| 954 | { |
| 955 | void __iomem *ctrl = params->ctrl_regs; |
| 956 | |
| 957 | USB_CTRL_UNSET(ctrl, USB30_PCTL, PHY3_IDDQ_OVERRIDE); |
| 958 | /* 1 millisecond - for USB clocks to settle down */ |
| 959 | usleep_range(1000, 2000); |
| 960 | |
| 961 | if (BRCM_ID(params->family_id) == 0x7366) { |
| 962 | /* |
| 963 | * The PHY3_SOFT_RESETB bits default to the wrong state. |
| 964 | */ |
| 965 | USB_CTRL_SET(ctrl, USB30_PCTL, PHY3_SOFT_RESETB); |
| 966 | USB_CTRL_SET(ctrl, USB30_PCTL, PHY3_SOFT_RESETB_P1); |
| 967 | } |
| 968 | |
| 969 | /* |
| 970 | * Kick start USB3 PHY |
| 971 | * Make sure it's low to insure a rising edge. |
| 972 | */ |
| 973 | USB_CTRL_UNSET(ctrl, USB30_CTL1, PHY3_PLL_SEQ_START); |
| 974 | USB_CTRL_SET(ctrl, USB30_CTL1, PHY3_PLL_SEQ_START); |
| 975 | |
| 976 | brcmusb_usb3_phy_workarounds(params); |
| 977 | brcmusb_xhci_soft_reset(params, 0); |
| 978 | brcmusb_usb3_otp_fix(params); |
| 979 | } |
| 980 | |
| 981 | void brcm_usb_uninit_common(struct brcm_usb_init_params *params) |
| 982 | { |
| 983 | if (USB_CTRL_MASK_FAMILY(params, USB_PM, USB_PWRDN)) |
| 984 | USB_CTRL_SET_FAMILY(params, USB_PM, USB_PWRDN); |
| 985 | |
| 986 | if (USB_CTRL_MASK_FAMILY(params, PLL_CTL, PLL_IDDQ_PWRDN)) |
| 987 | USB_CTRL_SET_FAMILY(params, PLL_CTL, PLL_IDDQ_PWRDN); |
| 988 | } |
| 989 | |
| 990 | void brcm_usb_uninit_eohci(struct brcm_usb_init_params *params) |
| 991 | { |
| 992 | if (USB_CTRL_MASK_FAMILY(params, USB_PM, USB20_HC_RESETB)) |
| 993 | USB_CTRL_UNSET_FAMILY(params, USB_PM, USB20_HC_RESETB); |
| 994 | } |
| 995 | |
| 996 | void brcm_usb_uninit_xhci(struct brcm_usb_init_params *params) |
| 997 | { |
| 998 | brcmusb_xhci_soft_reset(params, 1); |
| 999 | USB_CTRL_SET(params->ctrl_regs, USB30_PCTL, PHY3_IDDQ_OVERRIDE); |
| 1000 | } |
| 1001 | |
| 1002 | void brcm_usb_set_family_map(struct brcm_usb_init_params *params) |
| 1003 | { |
| 1004 | int fam; |
| 1005 | |
| 1006 | fam = brcmusb_get_family_type(params); |
| 1007 | params->selected_family = fam; |
| 1008 | params->usb_reg_bits_map = |
| 1009 | &usb_reg_bits_map_table[fam][0]; |
| 1010 | params->family_name = family_names[fam]; |
| 1011 | } |