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https://github.com/AsahiLinux/u-boot
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213 lines
6.8 KiB
C
213 lines
6.8 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* From Coreboot src/southbridge/intel/bd82x6x/me_status.c
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*
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* Copyright (C) 2011 The Chromium OS Authors. All rights reserved.
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*/
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#include <common.h>
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#include <log.h>
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#include <asm/arch/me.h>
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/* HFS1[3:0] Current Working State Values */
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static const char *const me_cws_values[] = {
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[ME_HFS_CWS_RESET] = "Reset",
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[ME_HFS_CWS_INIT] = "Initializing",
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[ME_HFS_CWS_REC] = "Recovery",
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[ME_HFS_CWS_NORMAL] = "Normal",
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[ME_HFS_CWS_WAIT] = "Platform Disable Wait",
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[ME_HFS_CWS_TRANS] = "OP State Transition",
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[ME_HFS_CWS_INVALID] = "Invalid CPU Plugged In"
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};
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/* HFS1[8:6] Current Operation State Values */
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static const char *const me_opstate_values[] = {
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[ME_HFS_STATE_PREBOOT] = "Preboot",
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[ME_HFS_STATE_M0_UMA] = "M0 with UMA",
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[ME_HFS_STATE_M3] = "M3 without UMA",
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[ME_HFS_STATE_M0] = "M0 without UMA",
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[ME_HFS_STATE_BRINGUP] = "Bring up",
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[ME_HFS_STATE_ERROR] = "M0 without UMA but with error"
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};
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/* HFS[19:16] Current Operation Mode Values */
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static const char *const me_opmode_values[] = {
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[ME_HFS_MODE_NORMAL] = "Normal",
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[ME_HFS_MODE_DEBUG] = "Debug",
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[ME_HFS_MODE_DIS] = "Soft Temporary Disable",
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[ME_HFS_MODE_OVER_JMPR] = "Security Override via Jumper",
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[ME_HFS_MODE_OVER_MEI] = "Security Override via MEI Message"
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};
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/* HFS[15:12] Error Code Values */
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static const char *const me_error_values[] = {
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[ME_HFS_ERROR_NONE] = "No Error",
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[ME_HFS_ERROR_UNCAT] = "Uncategorized Failure",
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[ME_HFS_ERROR_IMAGE] = "Image Failure",
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[ME_HFS_ERROR_DEBUG] = "Debug Failure"
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};
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/* GMES[31:28] ME Progress Code */
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static const char *const me_progress_values[] = {
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[ME_GMES_PHASE_ROM] = "ROM Phase",
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[ME_GMES_PHASE_BUP] = "BUP Phase",
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[ME_GMES_PHASE_UKERNEL] = "uKernel Phase",
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[ME_GMES_PHASE_POLICY] = "Policy Module",
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[ME_GMES_PHASE_MODULE] = "Module Loading",
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[ME_GMES_PHASE_UNKNOWN] = "Unknown",
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[ME_GMES_PHASE_HOST] = "Host Communication"
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};
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/* GMES[27:24] Power Management Event */
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static const char *const me_pmevent_values[] = {
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[0x00] = "Clean Moff->Mx wake",
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[0x01] = "Moff->Mx wake after an error",
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[0x02] = "Clean global reset",
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[0x03] = "Global reset after an error",
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[0x04] = "Clean Intel ME reset",
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[0x05] = "Intel ME reset due to exception",
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[0x06] = "Pseudo-global reset",
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[0x07] = "S0/M0->Sx/M3",
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[0x08] = "Sx/M3->S0/M0",
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[0x09] = "Non-power cycle reset",
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[0x0a] = "Power cycle reset through M3",
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[0x0b] = "Power cycle reset through Moff",
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[0x0c] = "Sx/Mx->Sx/Moff"
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};
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/* Progress Code 0 states */
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static const char *const me_progress_rom_values[] = {
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[0x00] = "BEGIN",
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[0x06] = "DISABLE"
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};
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/* Progress Code 1 states */
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static const char *const me_progress_bup_values[] = {
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[0x00] = "Initialization starts",
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[0x01] = "Disable the host wake event",
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[0x04] = "Flow determination start process",
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[0x08] = "Error reading/matching the VSCC table in the descriptor",
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[0x0a] = "Check to see if straps say ME DISABLED",
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[0x0b] = "Timeout waiting for PWROK",
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[0x0d] = "Possibly handle BUP manufacturing override strap",
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[0x11] = "Bringup in M3",
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[0x12] = "Bringup in M0",
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[0x13] = "Flow detection error",
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[0x15] = "M3 clock switching error",
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[0x18] = "M3 kernel load",
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[0x1c] = "T34 missing - cannot program ICC",
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[0x1f] = "Waiting for DID BIOS message",
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[0x20] = "Waiting for DID BIOS message failure",
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[0x21] = "DID reported an error",
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[0x22] = "Enabling UMA",
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[0x23] = "Enabling UMA error",
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[0x24] = "Sending DID Ack to BIOS",
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[0x25] = "Sending DID Ack to BIOS error",
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[0x26] = "Switching clocks in M0",
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[0x27] = "Switching clocks in M0 error",
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[0x28] = "ME in temp disable",
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[0x32] = "M0 kernel load",
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};
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/* Progress Code 3 states */
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static const char *const me_progress_policy_values[] = {
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[0x00] = "Entery into Policy Module",
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[0x03] = "Received S3 entry",
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[0x04] = "Received S4 entry",
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[0x05] = "Received S5 entry",
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[0x06] = "Received UPD entry",
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[0x07] = "Received PCR entry",
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[0x08] = "Received NPCR entry",
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[0x09] = "Received host wake",
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[0x0a] = "Received AC<>DC switch",
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[0x0b] = "Received DRAM Init Done",
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[0x0c] = "VSCC Data not found for flash device",
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[0x0d] = "VSCC Table is not valid",
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[0x0e] = "Flash Partition Boundary is outside address space",
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[0x0f] = "ME cannot access the chipset descriptor region",
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[0x10] = "Required VSCC values for flash parts do not match",
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};
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/**
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* _intel_me_status() - Check Intel Management Engine status
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*
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* struct hfs: Firmware status
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* struct gmes: Management engine status
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*/
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static void _intel_me_status(struct me_hfs *hfs, struct me_gmes *gmes)
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{
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/* Check Current States */
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debug("ME: FW Partition Table : %s\n",
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hfs->fpt_bad ? "BAD" : "OK");
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debug("ME: Bringup Loader Failure : %s\n",
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hfs->ft_bup_ld_flr ? "YES" : "NO");
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debug("ME: Firmware Init Complete : %s\n",
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hfs->fw_init_complete ? "YES" : "NO");
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debug("ME: Manufacturing Mode : %s\n",
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hfs->mfg_mode ? "YES" : "NO");
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debug("ME: Boot Options Present : %s\n",
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hfs->boot_options_present ? "YES" : "NO");
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debug("ME: Update In Progress : %s\n",
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hfs->update_in_progress ? "YES" : "NO");
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debug("ME: Current Working State : %s\n",
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me_cws_values[hfs->working_state]);
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debug("ME: Current Operation State : %s\n",
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me_opstate_values[hfs->operation_state]);
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debug("ME: Current Operation Mode : %s\n",
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me_opmode_values[hfs->operation_mode]);
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debug("ME: Error Code : %s\n",
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me_error_values[hfs->error_code]);
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debug("ME: Progress Phase : %s\n",
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me_progress_values[gmes->progress_code]);
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debug("ME: Power Management Event : %s\n",
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me_pmevent_values[gmes->current_pmevent]);
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debug("ME: Progress Phase State : ");
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switch (gmes->progress_code) {
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case ME_GMES_PHASE_ROM: /* ROM Phase */
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debug("%s", me_progress_rom_values[gmes->current_state]);
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break;
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case ME_GMES_PHASE_BUP: /* Bringup Phase */
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if (gmes->current_state < ARRAY_SIZE(me_progress_bup_values) &&
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me_progress_bup_values[gmes->current_state])
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debug("%s",
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me_progress_bup_values[gmes->current_state]);
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else
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debug("0x%02x", gmes->current_state);
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break;
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case ME_GMES_PHASE_POLICY: /* Policy Module Phase */
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if (gmes->current_state <
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ARRAY_SIZE(me_progress_policy_values) &&
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me_progress_policy_values[gmes->current_state])
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debug("%s",
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me_progress_policy_values[gmes->current_state]);
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else
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debug("0x%02x", gmes->current_state);
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break;
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case ME_GMES_PHASE_HOST: /* Host Communication Phase */
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if (!gmes->current_state)
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debug("Host communication established");
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else
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debug("0x%02x", gmes->current_state);
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break;
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default:
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debug("Unknown 0x%02x", gmes->current_state);
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}
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debug("\n");
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}
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void intel_me_status(struct udevice *me_dev)
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{
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struct me_hfs hfs;
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struct me_gmes gmes;
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pci_read_dword_ptr(me_dev, &hfs, PCI_ME_HFS);
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pci_read_dword_ptr(me_dev, &gmes, PCI_ME_GMES);
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_intel_me_status(&hfs, &gmes);
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}
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