platform/mellanox/mlxbf-bootctl.h

0001 /* SPDX-License-Identifier: GPL-2.0 */
0002 /*
0003  * Copyright (c) 2019, Mellanox Technologies. All rights reserved.
0004  */
0005
0006 #ifndef __MLXBF_BOOTCTL_H__
0007 #define __MLXBF_BOOTCTL_H__
0008
0009 /*
0010  * Request that the on-chip watchdog be enabled, or disabled, after
0011  * the next chip soft reset. This call does not affect the current
0012  * status of the on-chip watchdog. If non-zero, the argument
0013  * specifies the watchdog interval in seconds. If zero, the watchdog
0014  * will not be enabled after the next soft reset. Non-zero errors are
0015  * returned as documented below.
0016  */
0017 #define MLXBF_BOOTCTL_SET_POST_RESET_WDOG   0x82000000
0018
0019 /*
0020  * Query the status which has been requested for the on-chip watchdog
0021  * after the next chip soft reset. Returns the interval as set by
0022  * MLXBF_BOOTCTL_SET_POST_RESET_WDOG.
0023  */
0024 #define MLXBF_BOOTCTL_GET_POST_RESET_WDOG   0x82000001
0025
0026 /*
0027  * Request that a specific boot action be taken at the next soft
0028  * reset. By default, the boot action is set by external chip pins,
0029  * which are sampled on hard reset. Note that the boot action
0030  * requested by this call will persist on subsequent resets unless
0031  * this service, or the MLNX_SET_SECOND_RESET_ACTION service, is
0032  * invoked. See below for the available MLNX_BOOT_xxx parameter
0033  * values. Non-zero errors are returned as documented below.
0034  */
0035 #define MLXBF_BOOTCTL_SET_RESET_ACTION      0x82000002
0036
0037 /*
0038  * Return the specific boot action which will be taken at the next
0039  * soft reset. Returns the reset action (see below for the parameter
0040  * values for MLXBF_BOOTCTL_SET_RESET_ACTION).
0041  */
0042 #define MLXBF_BOOTCTL_GET_RESET_ACTION      0x82000003
0043
0044 /*
0045  * Request that a specific boot action be taken at the soft reset
0046  * after the next soft reset. For a specified valid boot mode, the
0047  * effect of this call is identical to that of invoking
0048  * MLXBF_BOOTCTL_SET_RESET_ACTION after the next chip soft reset; in
0049  * particular, after that reset, the action for the now next reset can
0050  * be queried with MLXBF_BOOTCTL_GET_RESET_ACTION and modified with
0051  * MLXBF_BOOTCTL_SET_RESET_ACTION. You may also specify the parameter as
0052  * MLNX_BOOT_NONE, which is equivalent to specifying that no call to
0053  * MLXBF_BOOTCTL_SET_RESET_ACTION be taken after the next chip soft reset.
0054  * This call does not affect the action to be taken at the next soft
0055  * reset. Non-zero errors are returned as documented below.
0056  */
0057 #define MLXBF_BOOTCTL_SET_SECOND_RESET_ACTION   0x82000004
0058
0059 /*
0060  * Return the specific boot action which will be taken at the soft
0061  * reset after the next soft reset; this will be one of the valid
0062  * actions for MLXBF_BOOTCTL_SET_SECOND_RESET_ACTION.
0063  */
0064 #define MLXBF_BOOTCTL_GET_SECOND_RESET_ACTION   0x82000005
0065
0066 /*
0067  * Return the fuse status of the current chip. The caller should specify
0068  * with the second argument if the state of the lifecycle fuses or the
0069  * version of secure boot fuse keys left should be returned.
0070  */
0071 #define MLXBF_BOOTCTL_GET_TBB_FUSE_STATUS   0x82000006
0072
0073 /* Reset eMMC by programming the RST_N register. */
0074 #define MLXBF_BOOTCTL_SET_EMMC_RST_N        0x82000007
0075
0076 #define MLXBF_BOOTCTL_GET_DIMM_INFO     0x82000008
0077
0078 /* SMC function IDs for SiP Service queries */
0079 #define MLXBF_BOOTCTL_SIP_SVC_CALL_COUNT    0x8200ff00
0080 #define MLXBF_BOOTCTL_SIP_SVC_UID       0x8200ff01
0081 #define MLXBF_BOOTCTL_SIP_SVC_VERSION       0x8200ff03
0082
0083 /* ARM Standard Service Calls version numbers */
0084 #define MLXBF_BOOTCTL_SVC_VERSION_MAJOR     0x0
0085 #define MLXBF_BOOTCTL_SVC_VERSION_MINOR     0x2
0086
0087 /* Number of svc calls defined. */
0088 #define MLXBF_BOOTCTL_NUM_SVC_CALLS 12
0089
0090 /* Valid reset actions for MLXBF_BOOTCTL_SET_RESET_ACTION. */
0091 #define MLXBF_BOOTCTL_EXTERNAL  0 /* Not boot from eMMC */
0092 #define MLXBF_BOOTCTL_EMMC  1 /* From primary eMMC boot partition */
0093 #define MLNX_BOOTCTL_SWAP_EMMC  2 /* Swap eMMC boot partitions and reboot */
0094 #define MLXBF_BOOTCTL_EMMC_LEGACY   3 /* From primary eMMC in legacy mode */
0095
0096 /* Valid arguments for requesting the fuse status. */
0097 #define MLXBF_BOOTCTL_FUSE_STATUS_LIFECYCLE 0 /* Return lifecycle status. */
0098 #define MLXBF_BOOTCTL_FUSE_STATUS_KEYS  1 /* Return secure boot key status */
0099
0100 /* Additional value to disable the MLXBF_BOOTCTL_SET_SECOND_RESET_ACTION. */
0101 #define MLXBF_BOOTCTL_NONE  0x7fffffff /* Don't change next boot action */
0102
0103 #endif /* __MLXBF_BOOTCTL_H__ */