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__ */