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83d290c5 | 1 | // SPDX-License-Identifier: GPL-2.0 |
65dd74a6 SG |
2 | /* |
3 | * From Coreboot src/southbridge/intel/bd82x6x/me_status.c | |
4 | * | |
5 | * Copyright (C) 2011 The Chromium OS Authors. All rights reserved. | |
65dd74a6 SG |
6 | */ |
7 | ||
d678a59d | 8 | #include <common.h> |
f7ae49fc | 9 | #include <log.h> |
65dd74a6 SG |
10 | #include <asm/arch/me.h> |
11 | ||
12 | /* HFS1[3:0] Current Working State Values */ | |
13 | static const char *const me_cws_values[] = { | |
14 | [ME_HFS_CWS_RESET] = "Reset", | |
15 | [ME_HFS_CWS_INIT] = "Initializing", | |
16 | [ME_HFS_CWS_REC] = "Recovery", | |
17 | [ME_HFS_CWS_NORMAL] = "Normal", | |
18 | [ME_HFS_CWS_WAIT] = "Platform Disable Wait", | |
19 | [ME_HFS_CWS_TRANS] = "OP State Transition", | |
20 | [ME_HFS_CWS_INVALID] = "Invalid CPU Plugged In" | |
21 | }; | |
22 | ||
23 | /* HFS1[8:6] Current Operation State Values */ | |
24 | static const char *const me_opstate_values[] = { | |
25 | [ME_HFS_STATE_PREBOOT] = "Preboot", | |
26 | [ME_HFS_STATE_M0_UMA] = "M0 with UMA", | |
27 | [ME_HFS_STATE_M3] = "M3 without UMA", | |
28 | [ME_HFS_STATE_M0] = "M0 without UMA", | |
29 | [ME_HFS_STATE_BRINGUP] = "Bring up", | |
30 | [ME_HFS_STATE_ERROR] = "M0 without UMA but with error" | |
31 | }; | |
32 | ||
33 | /* HFS[19:16] Current Operation Mode Values */ | |
34 | static const char *const me_opmode_values[] = { | |
35 | [ME_HFS_MODE_NORMAL] = "Normal", | |
36 | [ME_HFS_MODE_DEBUG] = "Debug", | |
37 | [ME_HFS_MODE_DIS] = "Soft Temporary Disable", | |
38 | [ME_HFS_MODE_OVER_JMPR] = "Security Override via Jumper", | |
39 | [ME_HFS_MODE_OVER_MEI] = "Security Override via MEI Message" | |
40 | }; | |
41 | ||
42 | /* HFS[15:12] Error Code Values */ | |
43 | static const char *const me_error_values[] = { | |
44 | [ME_HFS_ERROR_NONE] = "No Error", | |
45 | [ME_HFS_ERROR_UNCAT] = "Uncategorized Failure", | |
46 | [ME_HFS_ERROR_IMAGE] = "Image Failure", | |
47 | [ME_HFS_ERROR_DEBUG] = "Debug Failure" | |
48 | }; | |
49 | ||
50 | /* GMES[31:28] ME Progress Code */ | |
51 | static const char *const me_progress_values[] = { | |
52 | [ME_GMES_PHASE_ROM] = "ROM Phase", | |
53 | [ME_GMES_PHASE_BUP] = "BUP Phase", | |
54 | [ME_GMES_PHASE_UKERNEL] = "uKernel Phase", | |
55 | [ME_GMES_PHASE_POLICY] = "Policy Module", | |
56 | [ME_GMES_PHASE_MODULE] = "Module Loading", | |
57 | [ME_GMES_PHASE_UNKNOWN] = "Unknown", | |
58 | [ME_GMES_PHASE_HOST] = "Host Communication" | |
59 | }; | |
60 | ||
61 | /* GMES[27:24] Power Management Event */ | |
62 | static const char *const me_pmevent_values[] = { | |
63 | [0x00] = "Clean Moff->Mx wake", | |
64 | [0x01] = "Moff->Mx wake after an error", | |
65 | [0x02] = "Clean global reset", | |
66 | [0x03] = "Global reset after an error", | |
67 | [0x04] = "Clean Intel ME reset", | |
68 | [0x05] = "Intel ME reset due to exception", | |
69 | [0x06] = "Pseudo-global reset", | |
70 | [0x07] = "S0/M0->Sx/M3", | |
71 | [0x08] = "Sx/M3->S0/M0", | |
72 | [0x09] = "Non-power cycle reset", | |
73 | [0x0a] = "Power cycle reset through M3", | |
74 | [0x0b] = "Power cycle reset through Moff", | |
75 | [0x0c] = "Sx/Mx->Sx/Moff" | |
76 | }; | |
77 | ||
78 | /* Progress Code 0 states */ | |
79 | static const char *const me_progress_rom_values[] = { | |
80 | [0x00] = "BEGIN", | |
81 | [0x06] = "DISABLE" | |
82 | }; | |
83 | ||
84 | /* Progress Code 1 states */ | |
85 | static const char *const me_progress_bup_values[] = { | |
86 | [0x00] = "Initialization starts", | |
87 | [0x01] = "Disable the host wake event", | |
88 | [0x04] = "Flow determination start process", | |
89 | [0x08] = "Error reading/matching the VSCC table in the descriptor", | |
90 | [0x0a] = "Check to see if straps say ME DISABLED", | |
91 | [0x0b] = "Timeout waiting for PWROK", | |
92 | [0x0d] = "Possibly handle BUP manufacturing override strap", | |
93 | [0x11] = "Bringup in M3", | |
94 | [0x12] = "Bringup in M0", | |
95 | [0x13] = "Flow detection error", | |
96 | [0x15] = "M3 clock switching error", | |
97 | [0x18] = "M3 kernel load", | |
98 | [0x1c] = "T34 missing - cannot program ICC", | |
99 | [0x1f] = "Waiting for DID BIOS message", | |
100 | [0x20] = "Waiting for DID BIOS message failure", | |
101 | [0x21] = "DID reported an error", | |
102 | [0x22] = "Enabling UMA", | |
103 | [0x23] = "Enabling UMA error", | |
104 | [0x24] = "Sending DID Ack to BIOS", | |
105 | [0x25] = "Sending DID Ack to BIOS error", | |
106 | [0x26] = "Switching clocks in M0", | |
107 | [0x27] = "Switching clocks in M0 error", | |
108 | [0x28] = "ME in temp disable", | |
109 | [0x32] = "M0 kernel load", | |
110 | }; | |
111 | ||
112 | /* Progress Code 3 states */ | |
113 | static const char *const me_progress_policy_values[] = { | |
114 | [0x00] = "Entery into Policy Module", | |
115 | [0x03] = "Received S3 entry", | |
116 | [0x04] = "Received S4 entry", | |
117 | [0x05] = "Received S5 entry", | |
118 | [0x06] = "Received UPD entry", | |
119 | [0x07] = "Received PCR entry", | |
120 | [0x08] = "Received NPCR entry", | |
121 | [0x09] = "Received host wake", | |
122 | [0x0a] = "Received AC<>DC switch", | |
123 | [0x0b] = "Received DRAM Init Done", | |
124 | [0x0c] = "VSCC Data not found for flash device", | |
125 | [0x0d] = "VSCC Table is not valid", | |
126 | [0x0e] = "Flash Partition Boundary is outside address space", | |
127 | [0x0f] = "ME cannot access the chipset descriptor region", | |
128 | [0x10] = "Required VSCC values for flash parts do not match", | |
129 | }; | |
130 | ||
8b900a41 SG |
131 | |
132 | /** | |
133 | * _intel_me_status() - Check Intel Management Engine status | |
134 | * | |
135 | * struct hfs: Firmware status | |
136 | * struct gmes: Management engine status | |
137 | */ | |
138 | static void _intel_me_status(struct me_hfs *hfs, struct me_gmes *gmes) | |
65dd74a6 SG |
139 | { |
140 | /* Check Current States */ | |
141 | debug("ME: FW Partition Table : %s\n", | |
142 | hfs->fpt_bad ? "BAD" : "OK"); | |
143 | debug("ME: Bringup Loader Failure : %s\n", | |
144 | hfs->ft_bup_ld_flr ? "YES" : "NO"); | |
145 | debug("ME: Firmware Init Complete : %s\n", | |
146 | hfs->fw_init_complete ? "YES" : "NO"); | |
147 | debug("ME: Manufacturing Mode : %s\n", | |
148 | hfs->mfg_mode ? "YES" : "NO"); | |
149 | debug("ME: Boot Options Present : %s\n", | |
150 | hfs->boot_options_present ? "YES" : "NO"); | |
151 | debug("ME: Update In Progress : %s\n", | |
152 | hfs->update_in_progress ? "YES" : "NO"); | |
153 | debug("ME: Current Working State : %s\n", | |
154 | me_cws_values[hfs->working_state]); | |
155 | debug("ME: Current Operation State : %s\n", | |
156 | me_opstate_values[hfs->operation_state]); | |
157 | debug("ME: Current Operation Mode : %s\n", | |
158 | me_opmode_values[hfs->operation_mode]); | |
159 | debug("ME: Error Code : %s\n", | |
160 | me_error_values[hfs->error_code]); | |
161 | debug("ME: Progress Phase : %s\n", | |
162 | me_progress_values[gmes->progress_code]); | |
163 | debug("ME: Power Management Event : %s\n", | |
164 | me_pmevent_values[gmes->current_pmevent]); | |
165 | ||
166 | debug("ME: Progress Phase State : "); | |
167 | switch (gmes->progress_code) { | |
168 | case ME_GMES_PHASE_ROM: /* ROM Phase */ | |
169 | debug("%s", me_progress_rom_values[gmes->current_state]); | |
170 | break; | |
171 | ||
172 | case ME_GMES_PHASE_BUP: /* Bringup Phase */ | |
173 | if (gmes->current_state < ARRAY_SIZE(me_progress_bup_values) && | |
174 | me_progress_bup_values[gmes->current_state]) | |
175 | debug("%s", | |
176 | me_progress_bup_values[gmes->current_state]); | |
177 | else | |
178 | debug("0x%02x", gmes->current_state); | |
179 | break; | |
180 | ||
181 | case ME_GMES_PHASE_POLICY: /* Policy Module Phase */ | |
182 | if (gmes->current_state < | |
183 | ARRAY_SIZE(me_progress_policy_values) && | |
184 | me_progress_policy_values[gmes->current_state]) | |
185 | debug("%s", | |
186 | me_progress_policy_values[gmes->current_state]); | |
187 | else | |
188 | debug("0x%02x", gmes->current_state); | |
189 | break; | |
190 | ||
191 | case ME_GMES_PHASE_HOST: /* Host Communication Phase */ | |
192 | if (!gmes->current_state) | |
193 | debug("Host communication established"); | |
194 | else | |
195 | debug("0x%02x", gmes->current_state); | |
196 | break; | |
197 | ||
198 | default: | |
199 | debug("Unknown 0x%02x", gmes->current_state); | |
200 | } | |
201 | debug("\n"); | |
202 | } | |
8b900a41 SG |
203 | |
204 | void intel_me_status(struct udevice *me_dev) | |
205 | { | |
206 | struct me_hfs hfs; | |
207 | struct me_gmes gmes; | |
208 | ||
209 | pci_read_dword_ptr(me_dev, &hfs, PCI_ME_HFS); | |
210 | pci_read_dword_ptr(me_dev, &gmes, PCI_ME_GMES); | |
211 | ||
212 | _intel_me_status(&hfs, &gmes); | |
213 | } |