drivers/misc/habanalabs/include/common/hl_boot_if.h

   1 /* SPDX-License-Identifier: GPL-2.0
   2  *
   3  * Copyright 2018-2020 HabanaLabs, Ltd.
   4  * All Rights Reserved.
   5  *
   6  */
   7
   8 #ifndef HL_BOOT_IF_H
   9 #define HL_BOOT_IF_H
  10
  11 #define LKD_HARD_RESET_MAGIC            0xED7BD694
  12 #define HL_POWER9_HOST_MAGIC            0x1DA30009
  13
  14 #define BOOT_FIT_SRAM_OFFSET            0x200000
  15
  16 /*
  17  * CPU error bits in BOOT_ERROR registers
  18  *
  19  * CPU_BOOT_ERR0_DRAM_INIT_FAIL         DRAM initialization failed.
  20  *                                      DRAM is not reliable to use.
  21  *
  22  * CPU_BOOT_ERR0_FIT_CORRUPTED          FIT data integrity verification of the
  23  *                                      image provided by the host has failed.
  24  *
  25  * CPU_BOOT_ERR0_TS_INIT_FAIL           Thermal Sensor initialization failed.
  26  *                                      Boot continues as usual, but keep in
  27  *                                      mind this is a warning.
  28  *
  29  * CPU_BOOT_ERR0_DRAM_SKIPPED           DRAM initialization has been skipped.
  30  *                                      Skipping DRAM initialization has been
  31  *                                      requested (e.g. strap, command, etc.)
  32  *                                      and FW skipped the DRAM initialization.
  33  *                                      Host can initialize the DRAM.
  34  *
  35  * CPU_BOOT_ERR0_BMC_WAIT_SKIPPED       Waiting for BMC data will be skipped.
  36  *                                      Meaning the BMC data might not be
  37  *                                      available until reset.
  38  *
  39  * CPU_BOOT_ERR0_NIC_DATA_NOT_RDY       NIC data from BMC is not ready.
  40  *                                      BMC has not provided the NIC data yet.
  41  *                                      Once provided this bit will be cleared.
  42  *
  43  * CPU_BOOT_ERR0_NIC_FW_FAIL            NIC FW loading failed.
  44  *                                      The NIC FW loading and initialization
  45  *                                      failed. This means NICs are not usable.
  46  *
  47  * CPU_BOOT_ERR0_ENABLED                Error registers enabled.
  48  *                                      This is a main indication that the
  49  *                                      running FW populates the error
  50  *                                      registers. Meaning the error bits are
  51  *                                      not garbage, but actual error statuses.
  52  */
  53 #define CPU_BOOT_ERR0_DRAM_INIT_FAIL            (1 << 0)
  54 #define CPU_BOOT_ERR0_FIT_CORRUPTED             (1 << 1)
  55 #define CPU_BOOT_ERR0_TS_INIT_FAIL              (1 << 2)
  56 #define CPU_BOOT_ERR0_DRAM_SKIPPED              (1 << 3)
  57 #define CPU_BOOT_ERR0_BMC_WAIT_SKIPPED          (1 << 4)
  58 #define CPU_BOOT_ERR0_NIC_DATA_NOT_RDY          (1 << 5)
  59 #define CPU_BOOT_ERR0_NIC_FW_FAIL               (1 << 6)
  60 #define CPU_BOOT_ERR0_ENABLED                   (1 << 31)
  61
  62 enum cpu_boot_status {
  63         CPU_BOOT_STATUS_NA = 0,         /* Default value after reset of chip */
  64         CPU_BOOT_STATUS_IN_WFE = 1,
  65         CPU_BOOT_STATUS_DRAM_RDY = 2,
  66         CPU_BOOT_STATUS_SRAM_AVAIL = 3,
  67         CPU_BOOT_STATUS_IN_BTL = 4,     /* BTL is H/W FSM */
  68         CPU_BOOT_STATUS_IN_PREBOOT = 5,
  69         CPU_BOOT_STATUS_IN_SPL,         /* deprecated - not reported */
  70         CPU_BOOT_STATUS_IN_UBOOT = 7,
  71         CPU_BOOT_STATUS_DRAM_INIT_FAIL, /* deprecated - will be removed */
  72         CPU_BOOT_STATUS_FIT_CORRUPTED,  /* deprecated - will be removed */
  73         /* U-Boot console prompt activated, commands are not processed */
  74         CPU_BOOT_STATUS_UBOOT_NOT_READY = 10,
  75         /* Finished NICs init, reported after DRAM and NICs */
  76         CPU_BOOT_STATUS_NIC_FW_RDY = 11,
  77         CPU_BOOT_STATUS_TS_INIT_FAIL,   /* deprecated - will be removed */
  78         CPU_BOOT_STATUS_DRAM_SKIPPED,   /* deprecated - will be removed */
  79         CPU_BOOT_STATUS_BMC_WAITING_SKIPPED, /* deprecated - will be removed */
  80         /* Last boot loader progress status, ready to receive commands */
  81         CPU_BOOT_STATUS_READY_TO_BOOT = 15,
  82         CPU_BOOT_STATUS_WAITING_FOR_BOOT_FIT = 16,
  83 };
  84
  85 enum kmd_msg {
  86         KMD_MSG_NA = 0,
  87         KMD_MSG_GOTO_WFE,
  88         KMD_MSG_FIT_RDY,
  89         KMD_MSG_SKIP_BMC,
  90 };
  91
  92 enum cpu_msg_status {
  93         CPU_MSG_CLR = 0,
  94         CPU_MSG_OK,
  95         CPU_MSG_ERR,
  96 };
  97
  98 #endif /* HL_BOOT_IF_H */