1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * USB4 port sideband registers found on routers and retimers 4 * 5 * Copyright (C) 2020, Intel Corporation 6 * Authors: Mika Westerberg <mika.westerberg@linux.intel.com> 7 * Rajmohan Mani <rajmohan.mani@intel.com> 8 */ 9 10 #ifndef _SB_REGS 11 #define _SB_REGS 12 13 #define USB4_SB_VENDOR_ID 0x00 14 #define USB4_SB_PRODUCT_ID 0x01 15 #define USB4_SB_OPCODE 0x08 16 17 enum usb4_sb_opcode { 18 USB4_SB_OPCODE_ERR = 0x20525245, /* "ERR " */ 19 USB4_SB_OPCODE_ONS = 0x444d4321, /* "!CMD" */ 20 USB4_SB_OPCODE_ROUTER_OFFLINE = 0x4e45534c, /* "LSEN" */ 21 USB4_SB_OPCODE_ENUMERATE_RETIMERS = 0x4d554e45, /* "ENUM" */ 22 USB4_SB_OPCODE_SET_INBOUND_SBTX = 0x5055534c, /* "LSUP" */ 23 USB4_SB_OPCODE_QUERY_LAST_RETIMER = 0x5453414c, /* "LAST" */ 24 USB4_SB_OPCODE_GET_NVM_SECTOR_SIZE = 0x53534e47, /* "GNSS" */ 25 USB4_SB_OPCODE_NVM_SET_OFFSET = 0x53504f42, /* "BOPS" */ 26 USB4_SB_OPCODE_NVM_BLOCK_WRITE = 0x574b4c42, /* "BLKW" */ 27 USB4_SB_OPCODE_NVM_AUTH_WRITE = 0x48545541, /* "AUTH" */ 28 USB4_SB_OPCODE_NVM_READ = 0x52524641, /* "AFRR" */ 29 }; 30 31 #define USB4_SB_METADATA 0x09 32 #define USB4_SB_METADATA_NVM_AUTH_WRITE_MASK GENMASK(5, 0) 33 #define USB4_SB_DATA 0x12 34 35 #endif 36