linux/drivers/phy/broadcom/phy-brcm-usb-init.c
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   1// SPDX-License-Identifier: GPL-2.0-only
   2/*
   3 * phy-brcm-usb-init.c - Broadcom USB Phy chip specific init functions
   4 *
   5 * Copyright (C) 2014-2017 Broadcom
   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
  77enum 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
  94static 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
 107enum {
 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
 170struct id_to_type {
 171        u32 id;
 172        int type;
 173};
 174
 175static 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
 190static const u32
 191usb_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
 404static inline u32 brcmusb_readl(void __iomem *addr)
 405{
 406        return readl(addr);
 407}
 408
 409static inline void brcmusb_writel(u32 val, void __iomem *addr)
 410{
 411        writel(val, addr);
 412}
 413
 414static inline
 415void 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
 426static inline
 427void 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
 438static 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
 446static 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
 454static 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
 472static 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
 490static 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
 506static 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
 513static 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
 520static 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
 530static 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
 547static 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
 563static 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
 580static 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
 645static 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
 663static 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
 676static 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
 705static 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
 724static 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 */
 750static 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
 778void 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
 823int 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
 836void 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
 851void 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
 927void 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
 953void 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
 981void 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
 990void 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
 996void 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
1002void 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}
1012