| /* SPDX-License-Identifier: GPL-2.0 */ |
| /* |
| * USB4 port sideband registers found on routers and retimers |
| * |
| * Copyright (C) 2020, Intel Corporation |
| * Authors: Mika Westerberg <mika.westerberg@linux.intel.com> |
| * Rajmohan Mani <rajmohan.mani@intel.com> |
| */ |
| |
| #ifndef _SB_REGS |
| #define _SB_REGS |
| |
| #define USB4_SB_VENDOR_ID 0x00 |
| #define USB4_SB_PRODUCT_ID 0x01 |
| #define USB4_SB_FW_VERSION 0x02 |
| #define USB4_SB_DEBUG_CONF 0x05 |
| #define USB4_SB_DEBUG 0x06 |
| #define USB4_SB_LRD_TUNING 0x07 |
| #define USB4_SB_OPCODE 0x08 |
| |
| enum usb4_sb_opcode { |
| USB4_SB_OPCODE_ERR = 0x20525245, /* "ERR " */ |
| USB4_SB_OPCODE_ONS = 0x444d4321, /* "!CMD" */ |
| USB4_SB_OPCODE_ROUTER_OFFLINE = 0x4e45534c, /* "LSEN" */ |
| USB4_SB_OPCODE_ENUMERATE_RETIMERS = 0x4d554e45, /* "ENUM" */ |
| USB4_SB_OPCODE_SET_INBOUND_SBTX = 0x5055534c, /* "LSUP" */ |
| USB4_SB_OPCODE_UNSET_INBOUND_SBTX = 0x50555355, /* "USUP" */ |
| USB4_SB_OPCODE_QUERY_LAST_RETIMER = 0x5453414c, /* "LAST" */ |
| USB4_SB_OPCODE_QUERY_CABLE_RETIMER = 0x524c4243, /* "CBLR" */ |
| USB4_SB_OPCODE_GET_NVM_SECTOR_SIZE = 0x53534e47, /* "GNSS" */ |
| USB4_SB_OPCODE_NVM_SET_OFFSET = 0x53504f42, /* "BOPS" */ |
| USB4_SB_OPCODE_NVM_BLOCK_WRITE = 0x574b4c42, /* "BLKW" */ |
| USB4_SB_OPCODE_NVM_AUTH_WRITE = 0x48545541, /* "AUTH" */ |
| USB4_SB_OPCODE_NVM_READ = 0x52524641, /* "AFRR" */ |
| USB4_SB_OPCODE_READ_LANE_MARGINING_CAP = 0x50434452, /* "RDCP" */ |
| USB4_SB_OPCODE_RUN_HW_LANE_MARGINING = 0x474d4852, /* "RHMG" */ |
| USB4_SB_OPCODE_RUN_SW_LANE_MARGINING = 0x474d5352, /* "RSMG" */ |
| USB4_SB_OPCODE_READ_SW_MARGIN_ERR = 0x57534452, /* "RDSW" */ |
| }; |
| |
| #define USB4_SB_METADATA 0x09 |
| #define USB4_SB_METADATA_NVM_AUTH_WRITE_MASK GENMASK(5, 0) |
| #define USB4_SB_LINK_CONF 0x0c |
| #define USB4_SB_GEN23_TXFFE 0x0d |
| #define USB4_SB_GEN4_TXFFE 0x0e |
| #define USB4_SB_VERSION 0x0f |
| #define USB4_SB_DATA 0x12 |
| |
| /* USB4_SB_OPCODE_READ_LANE_MARGINING_CAP */ |
| #define USB4_MARGIN_CAP_0_MODES_HW BIT(0) |
| #define USB4_MARGIN_CAP_0_MODES_SW BIT(1) |
| #define USB4_MARGIN_CAP_0_2_LANES BIT(2) |
| #define USB4_MARGIN_CAP_0_VOLTAGE_INDP_MASK GENMASK(4, 3) |
| #define USB4_MARGIN_CAP_0_VOLTAGE_MIN 0x0 |
| #define USB4_MARGIN_CAP_0_VOLTAGE_HL 0x1 |
| #define USB4_MARGIN_CAP_0_VOLTAGE_BOTH 0x2 |
| #define USB4_MARGIN_CAP_0_TIME BIT(5) |
| #define USB4_MARGIN_CAP_0_VOLTAGE_STEPS_MASK GENMASK(12, 6) |
| #define USB4_MARGIN_CAP_0_MAX_VOLTAGE_OFFSET_MASK GENMASK(18, 13) |
| #define USB4_MARGIN_CAP_0_OPT_VOLTAGE_SUPPORT BIT(19) |
| #define USB4_MARGIN_CAP_0_VOLT_STEPS_OPT_MASK GENMASK(26, 20) |
| #define USB4_MARGIN_CAP_1_MAX_VOLT_OFS_OPT_MASK GENMASK(7, 0) |
| #define USB4_MARGIN_CAP_1_TIME_DESTR BIT(8) |
| #define USB4_MARGIN_CAP_1_TIME_INDP_MASK GENMASK(10, 9) |
| #define USB4_MARGIN_CAP_1_TIME_MIN 0x0 |
| #define USB4_MARGIN_CAP_1_TIME_LR 0x1 |
| #define USB4_MARGIN_CAP_1_TIME_BOTH 0x2 |
| #define USB4_MARGIN_CAP_1_TIME_STEPS_MASK GENMASK(15, 11) |
| #define USB4_MARGIN_CAP_1_TIME_OFFSET_MASK GENMASK(20, 16) |
| #define USB4_MARGIN_CAP_1_MIN_BER_MASK GENMASK(25, 21) |
| #define USB4_MARGIN_CAP_1_MAX_BER_MASK GENMASK(30, 26) |
| |
| /* USB4_SB_OPCODE_RUN_HW_LANE_MARGINING */ |
| #define USB4_MARGIN_HW_TIME BIT(3) |
| #define USB4_MARGIN_HW_RH BIT(4) |
| #define USB4_MARGIN_HW_BER_MASK GENMASK(9, 5) |
| #define USB4_MARGIN_HW_BER_SHIFT 5 |
| #define USB4_MARGIN_HW_OPT_VOLTAGE BIT(10) |
| |
| /* Applicable to all margin values */ |
| #define USB4_MARGIN_HW_RES_1_MARGIN_MASK GENMASK(6, 0) |
| #define USB4_MARGIN_HW_RES_1_EXCEEDS BIT(7) |
| /* Different lane margin shifts */ |
| #define USB4_MARGIN_HW_RES_1_L0_LL_MARGIN_SHIFT 8 |
| #define USB4_MARGIN_HW_RES_1_L1_RH_MARGIN_SHIFT 16 |
| #define USB4_MARGIN_HW_RES_1_L1_LL_MARGIN_SHIFT 24 |
| |
| /* USB4_SB_OPCODE_RUN_SW_LANE_MARGINING */ |
| #define USB4_MARGIN_SW_LANES_MASK GENMASK(2, 0) |
| #define USB4_MARGIN_SW_LANE_0 0x0 |
| #define USB4_MARGIN_SW_LANE_1 0x1 |
| #define USB4_MARGIN_SW_ALL_LANES 0x7 |
| #define USB4_MARGIN_SW_TIME BIT(3) |
| #define USB4_MARGIN_SW_RH BIT(4) |
| #define USB4_MARGIN_SW_OPT_VOLTAGE BIT(5) |
| #define USB4_MARGIN_SW_VT_MASK GENMASK(12, 6) |
| #define USB4_MARGIN_SW_COUNTER_MASK GENMASK(14, 13) |
| |
| #define USB4_MARGIN_SW_ERR_COUNTER_LANE_0_MASK GENMASK(3, 0) |
| #define USB4_MARGIN_SW_ERR_COUNTER_LANE_1_MASK GENMASK(7, 4) |
| |
| #endif |
