src/soc/intel/common/block/cse/cse_spec.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <bootstate.h>
   4 #include <intelblocks/cse.h>
   5 #include <intelblocks/me.h>
   6 #include <console/console.h>
   7 #include <stdint.h>
   8
   9 /*
  10  * This function returns state of manufacturing mode.
  11  *
  12  * ME manufacturing mode is disabled if the descriptor is locked and fuses
  13  * are programmed. Additionally, if the SoC supports manufacturing variable, should be locked.
  14  */
  15 static bool is_manufacturing_mode(union me_hfsts1 hfsts1, union me_hfsts6 hfsts6)
  16 {
  17 #if CONFIG_ME_SPEC <= 13
  18         return !(hfsts1.fields.mfg_mode == 0);
  19 #elif CONFIG_ME_SPEC <= 15
  20         return !((hfsts1.fields.mfg_mode == 0) &&
  21                  (hfsts6.fields.fpf_soc_lock == 1));
  22 #else
  23         return !((hfsts1.fields.mfg_mode == 0) &&
  24                  (hfsts6.fields.fpf_soc_lock == 1) &&
  25                  (hfsts6.fields.manuf_lock == 1));
  26 #endif
  27 }
  28
  29 static void dump_me_status(void *unused)
  30 {
  31         union me_hfsts1 hfsts1;
  32         union me_hfsts2 hfsts2;
  33         union me_hfsts3 hfsts3;
  34         union me_hfsts4 hfsts4;
  35         union me_hfsts5 hfsts5;
  36         union me_hfsts6 hfsts6;
  37         bool manufacturing_mode;
  38
  39         if (!is_cse_enabled())
  40                 return;
  41
  42         hfsts1.data = me_read_config32(PCI_ME_HFSTS1);
  43         hfsts2.data = me_read_config32(PCI_ME_HFSTS2);
  44         hfsts3.data = me_read_config32(PCI_ME_HFSTS3);
  45         hfsts4.data = me_read_config32(PCI_ME_HFSTS4);
  46         hfsts5.data = me_read_config32(PCI_ME_HFSTS5);
  47         hfsts6.data = me_read_config32(PCI_ME_HFSTS6);
  48
  49         printk(BIOS_DEBUG, "ME: HFSTS1                      : 0x%08X\n", hfsts1.data);
  50         printk(BIOS_DEBUG, "ME: HFSTS2                      : 0x%08X\n", hfsts2.data);
  51         printk(BIOS_DEBUG, "ME: HFSTS3                      : 0x%08X\n", hfsts3.data);
  52         printk(BIOS_DEBUG, "ME: HFSTS4                      : 0x%08X\n", hfsts4.data);
  53         printk(BIOS_DEBUG, "ME: HFSTS5                      : 0x%08X\n", hfsts5.data);
  54         printk(BIOS_DEBUG, "ME: HFSTS6                      : 0x%08X\n", hfsts6.data);
  55
  56         manufacturing_mode = is_manufacturing_mode(hfsts1, hfsts6);
  57         printk(BIOS_DEBUG, "ME: Manufacturing Mode          : %s\n",
  58                manufacturing_mode ? "YES" : "NO");
  59         /*
  60          * The SPI Protection Mode bit reflects SPI descriptor
  61          * locked(0) or unlocked(1).
  62          */
  63         printk(BIOS_DEBUG, "ME: SPI Protection Mode Enabled : %s\n",
  64                 hfsts1.fields.mfg_mode ? "NO" : "YES");
  65         printk(BIOS_DEBUG, "ME: FW Partition Table          : %s\n",
  66                 hfsts1.fields.fpt_bad ? "BAD" : "OK");
  67         printk(BIOS_DEBUG, "ME: Bringup Loader Failure      : %s\n",
  68                 hfsts1.fields.ft_bup_ld_flr ? "YES" : "NO");
  69         printk(BIOS_DEBUG, "ME: Firmware Init Complete      : %s\n",
  70                 hfsts1.fields.fw_init_complete ? "YES" : "NO");
  71         printk(BIOS_DEBUG, "ME: Boot Options Present        : %s\n",
  72                 hfsts1.fields.boot_options_present ? "YES" : "NO");
  73         printk(BIOS_DEBUG, "ME: Update In Progress          : %s\n",
  74                 hfsts1.fields.update_in_progress ? "YES" : "NO");
  75         printk(BIOS_DEBUG, "ME: D0i3 Support                : %s\n",
  76                 hfsts1.fields.d0i3_support_valid ? "YES" : "NO");
  77         printk(BIOS_DEBUG, "ME: Low Power State Enabled     : %s\n",
  78                 hfsts2.fields.low_power_state ? "YES" : "NO");
  79         printk(BIOS_DEBUG, "ME: CPU Replaced                : %s\n",
  80                 hfsts2.fields.cpu_replaced  ? "YES" : "NO");
  81         printk(BIOS_DEBUG, "ME: CPU Replacement Valid       : %s\n",
  82                 hfsts2.fields.cpu_replaced_valid ? "YES" : "NO");
  83         printk(BIOS_DEBUG, "ME: Current Working State       : %u\n",
  84                 hfsts1.fields.working_state);
  85         printk(BIOS_DEBUG, "ME: Current Operation State     : %u\n",
  86                 hfsts1.fields.operation_state);
  87         printk(BIOS_DEBUG, "ME: Current Operation Mode      : %u\n",
  88                 hfsts1.fields.operation_mode);
  89         printk(BIOS_DEBUG, "ME: Error Code                  : %u\n",
  90                 hfsts1.fields.error_code);
  91 #if CONFIG_ME_SPEC >= 15
  92         printk(BIOS_DEBUG, "ME: FPFs Committed              : %s\n",
  93                 hfsts6.fields.fpf_soc_lock ? "YES" : "NO");
  94         printk(BIOS_DEBUG, "ME: Enhanced Debug Mode         : %s\n",
  95                 hfsts1.fields.invoke_enhance_dbg_mode ? "YES" : "NO");
  96 #endif
  97
  98 #if CONFIG_ME_SPEC <= 16
  99         printk(BIOS_DEBUG, "ME: CPU Debug Disabled          : %s\n",
 100                 hfsts6.fields.cpu_debug_disable ? "YES" : "NO");
 101         printk(BIOS_DEBUG, "ME: TXT Support                 : %s\n",
 102                 hfsts6.fields.txt_support ? "YES" : "NO");
 103 #else
 104         printk(BIOS_DEBUG, "ME: CPU Debug Disabled          : %s\n",
 105                 hfsts5.fields.cpu_debug_disabled ? "YES" : "NO");
 106         printk(BIOS_DEBUG, "ME: TXT Support                 : %s\n",
 107                 hfsts5.fields.txt_support ? "YES" : "NO");
 108 #endif
 109
 110 #if CONFIG_ME_SPEC >= 16
 111         printk(BIOS_DEBUG, "ME: Manufacturing Vars Locked   : %s\n",
 112                 hfsts6.fields.manuf_lock ? "YES" : "NO");
 113         if (CONFIG(SOC_INTEL_CSE_LITE_SKU))
 114                 cse_log_ro_write_protection_info(manufacturing_mode);
 115 #endif
 116 }
 117
 118 BOOT_STATE_INIT_ENTRY(BS_DEV_ENABLE, BS_ON_EXIT, print_me_fw_version, NULL);
 119 BOOT_STATE_INIT_ENTRY(BS_OS_RESUME_CHECK, BS_ON_EXIT, dump_me_status, NULL);