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__ */