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 /*
79  * Initiate Firmware Reset via TYU. This might be invoked during the reset
80  * flow in isolation mode.
81  */
82 #define MLXBF_BOOTCTL_FW_RESET  0x8200000D
83 
84 /* SMC function IDs for SiP Service queries */
85 #define MLXBF_BOOTCTL_SIP_SVC_CALL_COUNT	0x8200ff00
86 #define MLXBF_BOOTCTL_SIP_SVC_UID		0x8200ff01
87 #define MLXBF_BOOTCTL_SIP_SVC_VERSION		0x8200ff03
88 
89 /* ARM Standard Service Calls version numbers */
90 #define MLXBF_BOOTCTL_SVC_VERSION_MAJOR		0x0
91 #define MLXBF_BOOTCTL_SVC_VERSION_MINOR		0x2
92 
93 /* Number of svc calls defined. */
94 #define MLXBF_BOOTCTL_NUM_SVC_CALLS 12
95 
96 /* Valid reset actions for MLXBF_BOOTCTL_SET_RESET_ACTION. */
97 #define MLXBF_BOOTCTL_EXTERNAL	0 /* Not boot from eMMC */
98 #define MLXBF_BOOTCTL_EMMC	1 /* From primary eMMC boot partition */
99 #define MLNX_BOOTCTL_SWAP_EMMC	2 /* Swap eMMC boot partitions and reboot */
100 #define MLXBF_BOOTCTL_EMMC_LEGACY	3 /* From primary eMMC in legacy mode */
101 
102 /* Valid arguments for requesting the fuse status. */
103 #define MLXBF_BOOTCTL_FUSE_STATUS_LIFECYCLE	0 /* Return lifecycle status. */
104 #define MLXBF_BOOTCTL_FUSE_STATUS_KEYS	1 /* Return secure boot key status */
105 
106 /* Additional value to disable the MLXBF_BOOTCTL_SET_SECOND_RESET_ACTION. */
107 #define MLXBF_BOOTCTL_NONE	0x7fffffff /* Don't change next boot action */
108 
109 #endif /* __MLXBF_BOOTCTL_H__ */
110