LXR linux/drivers/thunderbolt/sb

   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
  17enum 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
  34