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