drivers/thunderbolt/sb_regs.h

   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_ENUMERATE_RETIMERS = 0x4d554e45,         /* "ENUM" */
  21         USB4_SB_OPCODE_QUERY_LAST_RETIMER = 0x5453414c,         /* "LAST" */
  22         USB4_SB_OPCODE_GET_NVM_SECTOR_SIZE = 0x53534e47,        /* "GNSS" */
  23         USB4_SB_OPCODE_NVM_SET_OFFSET = 0x53504f42,             /* "BOPS" */
  24         USB4_SB_OPCODE_NVM_BLOCK_WRITE = 0x574b4c42,            /* "BLKW" */
  25         USB4_SB_OPCODE_NVM_AUTH_WRITE = 0x48545541,             /* "AUTH" */
  26         USB4_SB_OPCODE_NVM_READ = 0x52524641,                   /* "AFRR" */
  27 };
  28
  29 #define USB4_SB_METADATA                        0x09
  30 #define USB4_SB_METADATA_NVM_AUTH_WRITE_MASK    GENMASK(5, 0)
  31 #define USB4_SB_DATA                            0x12
  32
  33 #endif