LXR linux/drivers/platform/mellanox/mlxbf-bootctl.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2/*
   3 * Copyright (c) 2019, Mellanox Technologies. All rights reserved.
   4 */
   5
   6#ifndef __MLXBF_BOOTCTL_H__
   7#define __MLXBF_BOOTCTL_H__
   8
   9/*
  10 * Request that the on-chip watchdog be enabled, or disabled, after
  11 * the next chip soft reset. This call does not affect the current
  12 * status of the on-chip watchdog. If non-zero, the argument
  13 * specifies the watchdog interval in seconds. If zero, the watchdog
  14 * will not be enabled after the next soft reset. Non-zero errors are
  15 * returned as documented below.
  16 */
  17#define MLXBF_BOOTCTL_SET_POST_RESET_WDOG       0x82000000
  18
  19/*
  20 * Query the status which has been requested for the on-chip watchdog
  21 * after the next chip soft reset. Returns the interval as set by
  22 * MLXBF_BOOTCTL_SET_POST_RESET_WDOG.
  23 */
  24#define MLXBF_BOOTCTL_GET_POST_RESET_WDOG       0x82000001
  25
  26/*
  27 * Request that a specific boot action be taken at the next soft
  28 * reset. By default, the boot action is set by external chip pins,
  29 * which are sampled on hard reset. Note that the boot action
  30 * requested by this call will persist on subsequent resets unless
  31 * this service, or the MLNX_SET_SECOND_RESET_ACTION service, is
  32 * invoked. See below for the available MLNX_BOOT_xxx parameter
  33 * values. Non-zero errors are returned as documented below.
  34 */
  35#define MLXBF_BOOTCTL_SET_RESET_ACTION          0x82000002
  36
  37/*
  38 * Return the specific boot action which will be taken at the next
  39 * soft reset. Returns the reset action (see below for the parameter
  40 * values for MLXBF_BOOTCTL_SET_RESET_ACTION).
  41 */
  42#define MLXBF_BOOTCTL_GET_RESET_ACTION          0x82000003
  43
  44/*
  45 * Request that a specific boot action be taken at the soft reset
  46 * after the next soft reset. For a specified valid boot mode, the
  47 * effect of this call is identical to that of invoking
  48 * MLXBF_BOOTCTL_SET_RESET_ACTION after the next chip soft reset; in
  49 * particular, after that reset, the action for the now next reset can
  50 * be queried with MLXBF_BOOTCTL_GET_RESET_ACTION and modified with
  51 * MLXBF_BOOTCTL_SET_RESET_ACTION. You may also specify the parameter as
  52 * MLNX_BOOT_NONE, which is equivalent to specifying that no call to
  53 * MLXBF_BOOTCTL_SET_RESET_ACTION be taken after the next chip soft reset.
  54 * This call does not affect the action to be taken at the next soft
  55 * reset. Non-zero errors are returned as documented below.
  56 */
  57#define MLXBF_BOOTCTL_SET_SECOND_RESET_ACTION   0x82000004
  58
  59/*
  60 * Return the specific boot action which will be taken at the soft
  61 * reset after the next soft reset; this will be one of the valid
  62 * actions for MLXBF_BOOTCTL_SET_SECOND_RESET_ACTION.
  63 */
  64#define MLXBF_BOOTCTL_GET_SECOND_RESET_ACTION   0x82000005
  65
  66/*
  67 * Return the fuse status of the current chip. The caller should specify
  68 * with the second argument if the state of the lifecycle fuses or the
  69 * version of secure boot fuse keys left should be returned.
  70 */
  71#define MLXBF_BOOTCTL_GET_TBB_FUSE_STATUS       0x82000006
  72
  73/* Reset eMMC by programming the RST_N register. */
  74#define MLXBF_BOOTCTL_SET_EMMC_RST_N            0x82000007
  75
  76#define MLXBF_BOOTCTL_GET_DIMM_INFO             0x82000008
  77
  78/* SMC function IDs for SiP Service queries */
  79#define MLXBF_BOOTCTL_SIP_SVC_CALL_COUNT        0x8200ff00
  80#define MLXBF_BOOTCTL_SIP_SVC_UID               0x8200ff01
  81#define MLXBF_BOOTCTL_SIP_SVC_VERSION           0x8200ff03
  82
  83/* ARM Standard Service Calls version numbers */
  84#define MLXBF_BOOTCTL_SVC_VERSION_MAJOR         0x0
  85#define MLXBF_BOOTCTL_SVC_VERSION_MINOR         0x2
  86
  87/* Number of svc calls defined. */
  88#define MLXBF_BOOTCTL_NUM_SVC_CALLS 12
  89
  90/* Valid reset actions for MLXBF_BOOTCTL_SET_RESET_ACTION. */
  91#define MLXBF_BOOTCTL_EXTERNAL  0 /* Not boot from eMMC */
  92#define MLXBF_BOOTCTL_EMMC      1 /* From primary eMMC boot partition */
  93#define MLNX_BOOTCTL_SWAP_EMMC  2 /* Swap eMMC boot partitions and reboot */
  94#define MLXBF_BOOTCTL_EMMC_LEGACY       3 /* From primary eMMC in legacy mode */
  95
  96/* Valid arguments for requesting the fuse status. */
  97#define MLXBF_BOOTCTL_FUSE_STATUS_LIFECYCLE     0 /* Return lifecycle status. */
  98#define MLXBF_BOOTCTL_FUSE_STATUS_KEYS  1 /* Return secure boot key status */
  99
 100/* Additional value to disable the MLXBF_BOOTCTL_SET_SECOND_RESET_ACTION. */
 101#define MLXBF_BOOTCTL_NONE      0x7fffffff /* Don't change next boot action */
 102
 103#endif /* __MLXBF_BOOTCTL_H__ */
 104