summaryrefslogtreecommitdiff
path: root/resources/coreboot/default/patches/0024-Add-HP-8300-USDT-port.patch
blob: 1b6c4be4b81cfe6aa4957119e030dc5a5873ae42 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
From c2bc778648e649cc6f0a60d51d1124c1741f35d7 Mon Sep 17 00:00:00 2001
From: Riku Viitanen <riku.viitanen@protonmail.com>
Date: Fri, 16 Jun 2023 23:03:43 +0300
Subject: [PATCH] Add HP 8300 USDT port

In Coreboot Gerrit:
https://review.coreboot.org/c/coreboot/+/74906

The following is tested and is working:
* Native raminit with both DIMMs
* Libgfxinit textmode and framebuffer on both DisplayPorts and VGA
* External USB2 and USB3 ports: they all work
* USB 3.0 SuperSpeed on Linux-libre (rear, 4 ports)
* Ethernet
* Mini-PCIe WLAN
* SATA: 2.5" SSD and optical drive bay
* Booting Live Linuxes from DVD and USB with SeaBIOS 1.16.1
* PS/2 keyboard
* S3 suspend and resume, wake using USB keyboard
* Headphone output, line out, internal speaker
* Wake on LAN
* Rebooting
* CMOS options & nvramcui

Untested:
* mSATA slot. The SATA port needs to be enabled on devicetree
  too, but I'm unable to test due to lack of hardware
* Line in, mic input
* MXM graphics card
* PS/2 mouse
* EHCI debug

Not working:
* Mini-PCIe USB: I couldn't get it working on vendor BIOS either, so
  maybe it just isn't present
* PS/2 keyboard wake from S3
---
 .../hp/compaq_elite_8300_usdt/Kconfig         |  43 ++++
 .../hp/compaq_elite_8300_usdt/Kconfig.name    |   2 +
 .../hp/compaq_elite_8300_usdt/Makefile.inc    |   5 +
 .../hp/compaq_elite_8300_usdt/acpi/ec.asl     |   1 +
 .../compaq_elite_8300_usdt/acpi/platform.asl  |  10 +
 .../compaq_elite_8300_usdt/acpi/superio.asl   |  29 +++
 .../hp/compaq_elite_8300_usdt/acpi_tables.c   |  12 ++
 .../hp/compaq_elite_8300_usdt/board_info.txt  |   6 +
 .../hp/compaq_elite_8300_usdt/cmos.default    |   6 +
 .../hp/compaq_elite_8300_usdt/cmos.layout     |  73 +++++++
 .../hp/compaq_elite_8300_usdt/devicetree.cb   | 172 ++++++++++++++++
 .../hp/compaq_elite_8300_usdt/dsdt.asl        |  30 +++
 .../hp/compaq_elite_8300_usdt/early_init.c    |  39 ++++
 .../compaq_elite_8300_usdt/gma-mainboard.ads  |  19 ++
 .../hp/compaq_elite_8300_usdt/gpio.c          | 191 ++++++++++++++++++
 .../hp/compaq_elite_8300_usdt/hda_verb.c      |  33 +++
 .../hp/compaq_elite_8300_usdt/mainboard.c     |  16 ++
 17 files changed, 687 insertions(+)
 create mode 100644 src/mainboard/hp/compaq_elite_8300_usdt/Kconfig
 create mode 100644 src/mainboard/hp/compaq_elite_8300_usdt/Kconfig.name
 create mode 100644 src/mainboard/hp/compaq_elite_8300_usdt/Makefile.inc
 create mode 100644 src/mainboard/hp/compaq_elite_8300_usdt/acpi/ec.asl
 create mode 100644 src/mainboard/hp/compaq_elite_8300_usdt/acpi/platform.asl
 create mode 100644 src/mainboard/hp/compaq_elite_8300_usdt/acpi/superio.asl
 create mode 100644 src/mainboard/hp/compaq_elite_8300_usdt/acpi_tables.c
 create mode 100644 src/mainboard/hp/compaq_elite_8300_usdt/board_info.txt
 create mode 100644 src/mainboard/hp/compaq_elite_8300_usdt/cmos.default
 create mode 100644 src/mainboard/hp/compaq_elite_8300_usdt/cmos.layout
 create mode 100644 src/mainboard/hp/compaq_elite_8300_usdt/devicetree.cb
 create mode 100644 src/mainboard/hp/compaq_elite_8300_usdt/dsdt.asl
 create mode 100644 src/mainboard/hp/compaq_elite_8300_usdt/early_init.c
 create mode 100644 src/mainboard/hp/compaq_elite_8300_usdt/gma-mainboard.ads
 create mode 100644 src/mainboard/hp/compaq_elite_8300_usdt/gpio.c
 create mode 100644 src/mainboard/hp/compaq_elite_8300_usdt/hda_verb.c
 create mode 100644 src/mainboard/hp/compaq_elite_8300_usdt/mainboard.c

diff --git a/src/mainboard/hp/compaq_elite_8300_usdt/Kconfig b/src/mainboard/hp/compaq_elite_8300_usdt/Kconfig
new file mode 100644
index 0000000000..9450133065
--- /dev/null
+++ b/src/mainboard/hp/compaq_elite_8300_usdt/Kconfig
@@ -0,0 +1,43 @@
+if BOARD_HP_COMPAQ_ELITE_8300_USDT
+
+config BOARD_SPECIFIC_OPTIONS
+	def_bool y
+	select BOARD_ROMSIZE_KB_16384
+	select HAVE_ACPI_RESUME
+	select HAVE_ACPI_TABLES
+	select INTEL_INT15
+	select MAINBOARD_HAS_LIBGFXINIT
+	select NORTHBRIDGE_INTEL_SANDYBRIDGE
+	select SERIRQ_CONTINUOUS_MODE
+	select SOUTHBRIDGE_INTEL_C216
+	select USE_NATIVE_RAMINIT
+	select SUPERIO_NUVOTON_NPCD378
+	select MAINBOARD_USES_IFD_GBE_REGION
+	select MAINBOARD_HAS_TPM1
+	select MEMORY_MAPPED_TPM
+	select HAVE_CMOS_DEFAULT
+	select HAVE_OPTION_TABLE
+
+config CBFS_SIZE
+	default 0x570000
+
+config MAINBOARD_DIR
+	string
+	default "hp/compaq_elite_8300_usdt"
+
+config MAINBOARD_PART_NUMBER
+	string
+	default "HP Compaq Elite 8300 USDT"
+
+config VGA_BIOS_ID
+	string
+	default "8086,0152"
+
+config DRAM_RESET_GATE_GPIO
+	int
+	default 60
+
+config USBDEBUG_HCD_INDEX # FIXME: check this
+	int
+	default 2
+endif
diff --git a/src/mainboard/hp/compaq_elite_8300_usdt/Kconfig.name b/src/mainboard/hp/compaq_elite_8300_usdt/Kconfig.name
new file mode 100644
index 0000000000..030d8560ab
--- /dev/null
+++ b/src/mainboard/hp/compaq_elite_8300_usdt/Kconfig.name
@@ -0,0 +1,2 @@
+config BOARD_HP_COMPAQ_ELITE_8300_USDT
+	bool "Compaq Elite 8300 USDT"
diff --git a/src/mainboard/hp/compaq_elite_8300_usdt/Makefile.inc b/src/mainboard/hp/compaq_elite_8300_usdt/Makefile.inc
new file mode 100644
index 0000000000..18391d8b18
--- /dev/null
+++ b/src/mainboard/hp/compaq_elite_8300_usdt/Makefile.inc
@@ -0,0 +1,5 @@
+bootblock-y += early_init.c
+bootblock-y += gpio.c
+romstage-y += early_init.c
+romstage-y += gpio.c
+ramstage-$(CONFIG_MAINBOARD_USE_LIBGFXINIT) += gma-mainboard.ads
diff --git a/src/mainboard/hp/compaq_elite_8300_usdt/acpi/ec.asl b/src/mainboard/hp/compaq_elite_8300_usdt/acpi/ec.asl
new file mode 100644
index 0000000000..73fa78ef14
--- /dev/null
+++ b/src/mainboard/hp/compaq_elite_8300_usdt/acpi/ec.asl
@@ -0,0 +1 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
diff --git a/src/mainboard/hp/compaq_elite_8300_usdt/acpi/platform.asl b/src/mainboard/hp/compaq_elite_8300_usdt/acpi/platform.asl
new file mode 100644
index 0000000000..aff432b6f4
--- /dev/null
+++ b/src/mainboard/hp/compaq_elite_8300_usdt/acpi/platform.asl
@@ -0,0 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+Method(_WAK, 1)
+{
+	Return(Package() {0, 0})
+}
+
+Method(_PTS, 1)
+{
+}
diff --git a/src/mainboard/hp/compaq_elite_8300_usdt/acpi/superio.asl b/src/mainboard/hp/compaq_elite_8300_usdt/acpi/superio.asl
new file mode 100644
index 0000000000..54f8e3fe95
--- /dev/null
+++ b/src/mainboard/hp/compaq_elite_8300_usdt/acpi/superio.asl
@@ -0,0 +1,29 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+/* Copied over from compaq_8200_elite_sff/acpi/superio.asl */
+
+#include <superio/nuvoton/npcd378/acpi/superio.asl>
+
+Scope (\_GPE)
+{
+	Method (_L0D, 0, NotSerialized)
+	{
+		Notify (\_SB.PCI0.EHC1, 0x02)
+		Notify (\_SB.PCI0.EHC2, 0x02)
+		//FIXME: Add GBE device
+		//Notify (\_SB.PCI0.GBE, 0x02)
+	}
+
+	Method (_L09, 0, NotSerialized)
+	{
+		Notify (\_SB.PCI0.RP01, 0x02)
+		Notify (\_SB.PCI0.RP02, 0x02)
+		Notify (\_SB.PCI0.RP03, 0x02)
+		Notify (\_SB.PCI0.RP04, 0x02)
+		Notify (\_SB.PCI0.RP05, 0x02)
+		Notify (\_SB.PCI0.RP06, 0x02)
+		Notify (\_SB.PCI0.RP07, 0x02)
+		Notify (\_SB.PCI0.RP08, 0x02)
+		Notify (\_SB.PCI0.PEGP, 0x02)
+	}
+}
diff --git a/src/mainboard/hp/compaq_elite_8300_usdt/acpi_tables.c b/src/mainboard/hp/compaq_elite_8300_usdt/acpi_tables.c
new file mode 100644
index 0000000000..8f4f83b826
--- /dev/null
+++ b/src/mainboard/hp/compaq_elite_8300_usdt/acpi_tables.c
@@ -0,0 +1,12 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <acpi/acpi_gnvs.h>
+#include <soc/nvs.h>
+
+void mainboard_fill_gnvs(struct global_nvs *gnvs)
+{
+	/* Temperature at which OS will shutdown */
+	gnvs->tcrt = 100;
+	/* Temperature at which OS will throttle CPU */
+	gnvs->tpsv = 90;
+}
diff --git a/src/mainboard/hp/compaq_elite_8300_usdt/board_info.txt b/src/mainboard/hp/compaq_elite_8300_usdt/board_info.txt
new file mode 100644
index 0000000000..f47ea980b1
--- /dev/null
+++ b/src/mainboard/hp/compaq_elite_8300_usdt/board_info.txt
@@ -0,0 +1,6 @@
+Category: mini
+ROM protocol: SPI
+ROM socketed: n
+ROM package: SOIC-16
+Flashrom support: y
+Release year: 2012
diff --git a/src/mainboard/hp/compaq_elite_8300_usdt/cmos.default b/src/mainboard/hp/compaq_elite_8300_usdt/cmos.default
new file mode 100644
index 0000000000..6f3cec735e
--- /dev/null
+++ b/src/mainboard/hp/compaq_elite_8300_usdt/cmos.default
@@ -0,0 +1,6 @@
+boot_option=Fallback
+debug_level=Debug
+power_on_after_fail=Enable
+nmi=Enable
+sata_mode=AHCI
+gfx_uma_size=32M
diff --git a/src/mainboard/hp/compaq_elite_8300_usdt/cmos.layout b/src/mainboard/hp/compaq_elite_8300_usdt/cmos.layout
new file mode 100644
index 0000000000..bdc06faed6
--- /dev/null
+++ b/src/mainboard/hp/compaq_elite_8300_usdt/cmos.layout
@@ -0,0 +1,73 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
+# -----------------------------------------------------------------
+entries
+
+# -----------------------------------------------------------------
+0	120	r	0	reserved_memory
+
+# -----------------------------------------------------------------
+# RTC_BOOT_BYTE (coreboot hardcoded)
+384	1	e	4	boot_option
+388	4	h	0	reboot_counter
+
+# -----------------------------------------------------------------
+# coreboot config options: console
+395	4	e	6	debug_level
+
+# coreboot config options: southbridge
+408	1	e	1	nmi
+409	2	e	7	power_on_after_fail
+
+421	1	e	9	sata_mode
+
+# coreboot config options: northbridge
+432	3	e	11	gfx_uma_size
+
+448	128	r	0	vbnv
+
+# SandyBridge MRC Scrambler Seed values
+896	32	r	0	mrc_scrambler_seed
+928	32	r	0	mrc_scrambler_seed_s3
+960	16	r	0	mrc_scrambler_seed_chk
+
+# coreboot config options: check sums
+984	16	h	0	check_sum
+
+# -----------------------------------------------------------------
+
+enumerations
+
+#ID	value	text
+1	0	Disable
+1	1	Enable
+2	0	Enable
+2	1	Disable
+4	0	Fallback
+4	1	Normal
+6	0	Emergency
+6	1	Alert
+6	2	Critical
+6	3	Error
+6	4	Warning
+6	5	Notice
+6	6	Info
+6	7	Debug
+6	8	Spew
+7	0	Disable
+7	1	Enable
+7	2	Keep
+9	0	AHCI
+9	1	IDE
+11	0	32M
+11	1	64M
+11	2	96M
+11	3	128M
+11	4	160M
+11	5	192M
+11	6	224M
+
+# -----------------------------------------------------------------
+checksums
+
+checksum 392 415 984
diff --git a/src/mainboard/hp/compaq_elite_8300_usdt/devicetree.cb b/src/mainboard/hp/compaq_elite_8300_usdt/devicetree.cb
new file mode 100644
index 0000000000..008429505e
--- /dev/null
+++ b/src/mainboard/hp/compaq_elite_8300_usdt/devicetree.cb
@@ -0,0 +1,172 @@
+chip northbridge/intel/sandybridge
+	register "gpu_dp_b_hotplug" = "4"
+	register "gpu_dp_c_hotplug" = "4"
+	register "gpu_dp_d_hotplug" = "0"
+	device domain 0x0 on
+		chip southbridge/intel/bd82x6x # Intel Series 6 Cougar Point PCH
+			register "docking_supported" = "0"
+			register "gen1_dec" = "0x00fc0a01"
+			register "gen2_dec" = "0x00fc0801"
+			register "gen3_dec" = "0x00000000"
+			register "gen4_dec" = "0x00000000"
+			register "pcie_hotplug_map" = "{ 0, 0, 0, 0, 0, 0, 0, 0 }"
+			register "pcie_port_coalesce" = "1"
+			register "sata_interface_speed_support" = "0x3"
+			register "sata_port_map" = "0x3"  # 0x1: 2.5" slot
+			                                  # 0x2: DVD
+			                                  # 0x?: mSATA
+			register "spi_lvscc" = "0x2005"
+			register "spi_uvscc" = "0x2005"
+			register "superspeed_capable_ports" = "0x0000000f"
+			register "xhci_overcurrent_mapping" = "0x00000c03"
+			register "xhci_switchable_ports" = "0x0000000f"
+			device ref xhci on # USB 3.0 Controller
+				subsystemid 0x103c 0x3398
+			end
+			device ref mei1 off # Management Engine Interface 1
+			end
+			device ref mei2 off # Management Engine Interface 2
+			end
+			device ref me_ide_r off # Management Engine IDE-R
+			end
+			device ref me_kt off # Management Engine KT
+			end
+			device ref gbe on # Intel Gigabit Ethernet
+				subsystemid 0x103c 0x3398
+			end
+			device ref ehci2 on # USB2 EHCI #2
+				subsystemid 0x103c 0x3398
+			end
+			device ref hda on # High Definition Audio
+				subsystemid 0x103c 0x3398
+			end
+			device ref pcie_rp1 on # Mini-PCIe WLAN
+			end
+			device ref pcie_rp2 off # PCIe Port #2
+			end
+			device ref pcie_rp3 off # PCIe Port #3
+			end
+			device ref pcie_rp4 off # PCIe Port #4
+			end
+			device ref pcie_rp5 off # PCIe Port #5
+			end
+			device ref pcie_rp6 off # PCIe Port #6
+			end
+			device ref pcie_rp7 off # PCIe Port #7
+			end
+			device ref pcie_rp8 off # PCIe Port #8
+			end
+			device ref ehci1 on # USB2 EHCI #1
+				subsystemid 0x103c 0x3398
+			end
+			device ref pci_bridge on # PCI bridge
+				subsystemid 0x103c 0x3398
+			end
+			device ref lpc on # LPC bridge
+				chip superio/common		# Super I/O grabbed from 8200SFF devicetree
+					device pnp 2e.ff on # passes SIO base addr to SSDT gen
+						chip superio/nuvoton/npcd378
+							device pnp 2e.0 off end		# Floppy
+							device pnp 2e.1 off end		# Parallel
+							device pnp 2e.2 off		# COM1
+								io 0x60 = 0x2f8
+								irq 0x70 = 3
+							end
+							device pnp 2e.3 on		# COM2, IR
+								io 0x60 = 0x3f8
+								irq 0x70 = 4
+							end
+							device pnp 2e.4 on		# LED control
+								io 0x60 = 0x600
+								# IOBASE[0h] = bit0 LED red / green
+								# IOBASE[0h] = bit1-4 LED PWM duty cycle
+								# IOBASE[1h] = bit6 SWCC
+
+								io 0x62 = 0x610
+								# IOBASE [0h] = GPES
+								# IOBASE [1h] = GPEE
+								# IOBASE [4h:7h] = 32bit upcounter at 1Mhz
+								# IOBASE [8h:bh] = GPS
+								# IOBASE [ch:fh] = GPE
+							end
+							device pnp 2e.5 on		# Mouse
+								irq 0x70 = 0xc
+							end
+							device pnp 2e.6 on		# Keyboard
+								io 0x60 = 0x0060
+								io 0x62 = 0x0064
+								irq 0x70 = 0x01
+								# serialice: Vendor writes:
+								drq 0xf0 = 0x40
+							end
+							device pnp 2e.7 on		#  WDT ?
+								io 0x60 = 0x620
+							end
+							device pnp 2e.8 on		# HWM
+								io 0x60 = 0x800
+								# IOBASE[0h:feh] HWM page
+								# IOBASE[ffh] bit0-bit3 page selector
+
+								drq 0xf0 = 0x20
+								drq 0xf1 = 0x01
+								drq 0xf2 = 0x40
+								drq 0xf3 = 0x01
+
+								drq 0xf4 = 0x66
+								drq 0xf5 = 0x67
+								drq 0xf6 = 0x66
+								drq 0xf7 = 0x01
+							end
+							device pnp 2e.f on		# GPIO OD ?
+								drq 0xf1 = 0x97
+								drq 0xf2 = 0x01
+								drq 0xf5 = 0x08
+								drq 0xfe = 0x80
+							end
+							device pnp 2e.15 on		# BUS ?
+								io 0x60 = 0x0680
+								io 0x62 = 0x0690
+							end
+							device pnp 2e.1c on		# Suspend Control ?
+								io 0x60 = 0x640
+								# writing to IOBASE[5h]
+								#  0x0: Power off
+								#  0x9: Power off and bricked until CMOS battery removed
+							end
+							device pnp 2e.1e on		# GPIO ?
+								io 0x60 = 0x660
+								drq 0xf4 = 0x01
+								# skip the following, as it
+								# looks like remapped registers
+								#drq 0xf5 = 0x06
+								#drq 0xf6 = 0x60
+								#drq 0xfe = 0x03
+							end
+						end
+					end
+				end
+				chip drivers/pc80/tpm
+					device pnp 4e.0 on end          # TPM module
+				end
+			end
+			device ref sata1 on # SATA Controller 1
+				subsystemid 0x103c 0x3398
+			end
+			device ref smbus on # SMBus
+				subsystemid 0x103c 0x3398
+			end
+			device ref sata2 off # SATA Controller 2
+			end
+			device ref thermal off # Thermal
+			end
+		end
+		device ref host_bridge on # Host bridge Host bridge
+			subsystemid 0x103c 0x3398
+		end
+		device ref peg10 on # PEG
+		end
+		device ref igd on # iGPU
+			subsystemid 0x103c 0x3398
+		end
+	end
+end
diff --git a/src/mainboard/hp/compaq_elite_8300_usdt/dsdt.asl b/src/mainboard/hp/compaq_elite_8300_usdt/dsdt.asl
new file mode 100644
index 0000000000..7d13c55b08
--- /dev/null
+++ b/src/mainboard/hp/compaq_elite_8300_usdt/dsdt.asl
@@ -0,0 +1,30 @@
+#define BRIGHTNESS_UP \_SB.PCI0.GFX0.INCB
+#define BRIGHTNESS_DOWN \_SB.PCI0.GFX0.DECB
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+
+#include <acpi/acpi.h>
+
+DefinitionBlock(
+	"dsdt.aml",
+	"DSDT",
+	ACPI_DSDT_REV_2,
+	OEM_ID,
+	ACPI_TABLE_CREATOR,
+	0x20141018	/* OEM revision */
+)
+{
+	#include <acpi/dsdt_top.asl>
+	#include "acpi/platform.asl"
+	#include <cpu/intel/common/acpi/cpu.asl>
+	#include <southbridge/intel/common/acpi/platform.asl>
+	#include <southbridge/intel/bd82x6x/acpi/globalnvs.asl>
+	#include <southbridge/intel/common/acpi/sleepstates.asl>
+
+	Device (\_SB.PCI0)
+	{
+		#include <northbridge/intel/sandybridge/acpi/sandybridge.asl>
+		#include <drivers/intel/gma/acpi/default_brightness_levels.asl>
+		#include <southbridge/intel/bd82x6x/acpi/pch.asl>
+	}
+}
diff --git a/src/mainboard/hp/compaq_elite_8300_usdt/early_init.c b/src/mainboard/hp/compaq_elite_8300_usdt/early_init.c
new file mode 100644
index 0000000000..857c25dd19
--- /dev/null
+++ b/src/mainboard/hp/compaq_elite_8300_usdt/early_init.c
@@ -0,0 +1,39 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+
+#include <bootblock_common.h>
+#include <superio/nuvoton/npcd378/npcd378.h>
+#include <superio/nuvoton/common/nuvoton.h>
+#include <device/pci_ops.h>
+#include <northbridge/intel/sandybridge/raminit_native.h>
+#include <southbridge/intel/bd82x6x/pch.h>
+
+
+const struct southbridge_usb_port mainboard_usb_ports[] = {
+	{ 1, 0, 0 },
+	{ 1, 0, 0 },
+	{ 1, 0, 1 },
+	{ 1, 0, 1 },
+	{ 1, 0, 2 },
+	{ 1, 0, 2 },
+	{ 1, 0, 3 },
+	{ 1, 0, 3 },
+	{ 1, 0, 4 },
+	{ 1, 0, 4 },
+	{ 1, 0, 6 },
+	{ 1, 0, 5 },
+	{ 1, 0, 5 },
+	{ 1, 0, 6 },
+};
+
+void bootblock_mainboard_early_init(void)
+{
+	pci_write_config16(PCI_DEV(0, 0x1f, 0), 0x82, 0x1408);
+	pci_write_config16(PCI_DEV(0, 0x1f, 0), 0x80, 0x0010);
+}
+
+void mainboard_get_spd(spd_raw_data *spd, bool id_only)
+{
+	read_spd(&spd[3], 0x50, id_only);
+	read_spd(&spd[1], 0x52, id_only);
+}
diff --git a/src/mainboard/hp/compaq_elite_8300_usdt/gma-mainboard.ads b/src/mainboard/hp/compaq_elite_8300_usdt/gma-mainboard.ads
new file mode 100644
index 0000000000..74b50645e6
--- /dev/null
+++ b/src/mainboard/hp/compaq_elite_8300_usdt/gma-mainboard.ads
@@ -0,0 +1,19 @@
+-- SPDX-License-Identifier: GPL-2.0-or-later
+
+with HW.GFX.GMA;
+with HW.GFX.GMA.Display_Probing;
+
+use HW.GFX.GMA;
+use HW.GFX.GMA.Display_Probing;
+
+private package GMA.Mainboard is
+
+   ports : constant Port_List :=
+     (DP1,
+      DP2,
+      HDMI1,
+      HDMI2,
+      Analog,
+      others => Disabled);
+
+end GMA.Mainboard;
diff --git a/src/mainboard/hp/compaq_elite_8300_usdt/gpio.c b/src/mainboard/hp/compaq_elite_8300_usdt/gpio.c
new file mode 100644
index 0000000000..2ae852ae51
--- /dev/null
+++ b/src/mainboard/hp/compaq_elite_8300_usdt/gpio.c
@@ -0,0 +1,191 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <southbridge/intel/common/gpio.h>
+
+static const struct pch_gpio_set1 pch_gpio_set1_mode = {
+	.gpio0 = GPIO_MODE_GPIO,
+	.gpio1 = GPIO_MODE_GPIO,
+	.gpio2 = GPIO_MODE_NATIVE,
+	.gpio3 = GPIO_MODE_NATIVE,
+	.gpio4 = GPIO_MODE_NATIVE,
+	.gpio5 = GPIO_MODE_NATIVE,
+	.gpio6 = GPIO_MODE_GPIO,
+	.gpio7 = GPIO_MODE_GPIO,
+	.gpio8 = GPIO_MODE_GPIO,
+	.gpio9 = GPIO_MODE_NATIVE,
+	.gpio10 = GPIO_MODE_NATIVE,
+	.gpio11 = GPIO_MODE_GPIO,
+	.gpio12 = GPIO_MODE_NATIVE,
+	.gpio13 = GPIO_MODE_GPIO,
+	.gpio14 = GPIO_MODE_NATIVE,
+	.gpio15 = GPIO_MODE_GPIO,
+	.gpio16 = GPIO_MODE_GPIO,
+	.gpio17 = GPIO_MODE_GPIO,
+	.gpio18 = GPIO_MODE_NATIVE,
+	.gpio19 = GPIO_MODE_NATIVE,
+	.gpio20 = GPIO_MODE_NATIVE,
+	.gpio21 = GPIO_MODE_GPIO,
+	.gpio22 = GPIO_MODE_GPIO,
+	.gpio23 = GPIO_MODE_NATIVE,
+	.gpio24 = GPIO_MODE_GPIO,
+	.gpio25 = GPIO_MODE_NATIVE,
+	.gpio26 = GPIO_MODE_NATIVE,
+	.gpio27 = GPIO_MODE_GPIO,
+	.gpio28 = GPIO_MODE_GPIO,
+	.gpio29 = GPIO_MODE_GPIO,
+	.gpio30 = GPIO_MODE_NATIVE,
+	.gpio31 = GPIO_MODE_GPIO,
+};
+
+static const struct pch_gpio_set1 pch_gpio_set1_direction = {
+	.gpio0 = GPIO_DIR_INPUT,
+	.gpio1 = GPIO_DIR_INPUT,
+	.gpio6 = GPIO_DIR_INPUT,
+	.gpio7 = GPIO_DIR_INPUT,
+	.gpio8 = GPIO_DIR_INPUT,
+	.gpio11 = GPIO_DIR_INPUT,
+	.gpio13 = GPIO_DIR_INPUT,
+	.gpio15 = GPIO_DIR_OUTPUT,
+	.gpio16 = GPIO_DIR_INPUT,
+	.gpio17 = GPIO_DIR_OUTPUT,
+	.gpio21 = GPIO_DIR_INPUT,
+	.gpio22 = GPIO_DIR_INPUT,
+	.gpio24 = GPIO_DIR_INPUT,
+	.gpio27 = GPIO_DIR_INPUT,
+	.gpio28 = GPIO_DIR_OUTPUT,
+	.gpio29 = GPIO_DIR_OUTPUT,
+	.gpio31 = GPIO_DIR_INPUT,
+};
+
+static const struct pch_gpio_set1 pch_gpio_set1_level = {
+	.gpio15 = GPIO_LEVEL_LOW,
+	.gpio17 = GPIO_LEVEL_LOW,
+	.gpio28 = GPIO_LEVEL_LOW,
+	.gpio29 = GPIO_LEVEL_HIGH,
+};
+
+static const struct pch_gpio_set1 pch_gpio_set1_reset = {
+};
+
+static const struct pch_gpio_set1 pch_gpio_set1_invert = {
+	.gpio0 = GPIO_INVERT,
+	.gpio1 = GPIO_INVERT,
+	.gpio6 = GPIO_INVERT,
+	.gpio11 = GPIO_INVERT,
+	.gpio13 = GPIO_INVERT,
+};
+
+static const struct pch_gpio_set1 pch_gpio_set1_blink = {
+};
+
+static const struct pch_gpio_set2 pch_gpio_set2_mode = {
+	.gpio32 = GPIO_MODE_GPIO,
+	.gpio33 = GPIO_MODE_GPIO,
+	.gpio34 = GPIO_MODE_GPIO,
+	.gpio35 = GPIO_MODE_GPIO,
+	.gpio36 = GPIO_MODE_GPIO,
+	.gpio37 = GPIO_MODE_GPIO,
+	.gpio38 = GPIO_MODE_GPIO,
+	.gpio39 = GPIO_MODE_GPIO,
+	.gpio40 = GPIO_MODE_NATIVE,
+	.gpio41 = GPIO_MODE_NATIVE,
+	.gpio42 = GPIO_MODE_NATIVE,
+	.gpio43 = GPIO_MODE_GPIO,
+	.gpio44 = GPIO_MODE_NATIVE,
+	.gpio45 = GPIO_MODE_NATIVE,
+	.gpio46 = GPIO_MODE_GPIO,
+	.gpio47 = GPIO_MODE_NATIVE,
+	.gpio48 = GPIO_MODE_GPIO,
+	.gpio49 = GPIO_MODE_GPIO,
+	.gpio50 = GPIO_MODE_NATIVE,
+	.gpio51 = GPIO_MODE_NATIVE,
+	.gpio52 = GPIO_MODE_NATIVE,
+	.gpio53 = GPIO_MODE_NATIVE,
+	.gpio54 = GPIO_MODE_GPIO,
+	.gpio55 = GPIO_MODE_NATIVE,
+	.gpio56 = GPIO_MODE_NATIVE,
+	.gpio57 = GPIO_MODE_GPIO,
+	.gpio58 = GPIO_MODE_NATIVE,
+	.gpio59 = GPIO_MODE_NATIVE,
+	.gpio60 = GPIO_MODE_NATIVE,
+	.gpio61 = GPIO_MODE_GPIO,
+	.gpio62 = GPIO_MODE_NATIVE,
+	.gpio63 = GPIO_MODE_NATIVE,
+};
+
+static const struct pch_gpio_set2 pch_gpio_set2_direction = {
+	.gpio32 = GPIO_DIR_INPUT,
+	.gpio33 = GPIO_DIR_INPUT,
+	.gpio34 = GPIO_DIR_INPUT,
+	.gpio35 = GPIO_DIR_INPUT,
+	.gpio36 = GPIO_DIR_INPUT,
+	.gpio37 = GPIO_DIR_INPUT,
+	.gpio38 = GPIO_DIR_INPUT,
+	.gpio39 = GPIO_DIR_INPUT,
+	.gpio43 = GPIO_DIR_INPUT,
+	.gpio46 = GPIO_DIR_INPUT,
+	.gpio48 = GPIO_DIR_INPUT,
+	.gpio49 = GPIO_DIR_INPUT,
+	.gpio54 = GPIO_DIR_INPUT,
+	.gpio57 = GPIO_DIR_INPUT,
+	.gpio61 = GPIO_DIR_INPUT,
+};
+
+static const struct pch_gpio_set2 pch_gpio_set2_level = {
+};
+
+static const struct pch_gpio_set2 pch_gpio_set2_reset = {
+};
+
+static const struct pch_gpio_set3 pch_gpio_set3_mode = {
+	.gpio64 = GPIO_MODE_NATIVE,
+	.gpio65 = GPIO_MODE_NATIVE,
+	.gpio66 = GPIO_MODE_NATIVE,
+	.gpio67 = GPIO_MODE_NATIVE,
+	.gpio68 = GPIO_MODE_GPIO,
+	.gpio69 = GPIO_MODE_GPIO,
+	.gpio70 = GPIO_MODE_GPIO,
+	.gpio71 = GPIO_MODE_GPIO,
+	.gpio72 = GPIO_MODE_GPIO,
+	.gpio73 = GPIO_MODE_NATIVE,
+	.gpio74 = GPIO_MODE_NATIVE,
+	.gpio75 = GPIO_MODE_NATIVE,
+};
+
+static const struct pch_gpio_set3 pch_gpio_set3_direction = {
+	.gpio68 = GPIO_DIR_INPUT,
+	.gpio69 = GPIO_DIR_INPUT,
+	.gpio70 = GPIO_DIR_INPUT,
+	.gpio71 = GPIO_DIR_OUTPUT,
+	.gpio72 = GPIO_DIR_INPUT,
+};
+
+static const struct pch_gpio_set3 pch_gpio_set3_level = {
+	.gpio71 = GPIO_LEVEL_LOW,
+};
+
+static const struct pch_gpio_set3 pch_gpio_set3_reset = {
+};
+
+const struct pch_gpio_map mainboard_gpio_map = {
+	.set1 = {
+		.mode		= &pch_gpio_set1_mode,
+		.direction	= &pch_gpio_set1_direction,
+		.level		= &pch_gpio_set1_level,
+		.blink		= &pch_gpio_set1_blink,
+		.invert		= &pch_gpio_set1_invert,
+		.reset		= &pch_gpio_set1_reset,
+	},
+	.set2 = {
+		.mode		= &pch_gpio_set2_mode,
+		.direction	= &pch_gpio_set2_direction,
+		.level		= &pch_gpio_set2_level,
+		.reset		= &pch_gpio_set2_reset,
+	},
+	.set3 = {
+		.mode		= &pch_gpio_set3_mode,
+		.direction	= &pch_gpio_set3_direction,
+		.level		= &pch_gpio_set3_level,
+		.reset		= &pch_gpio_set3_reset,
+	},
+};
diff --git a/src/mainboard/hp/compaq_elite_8300_usdt/hda_verb.c b/src/mainboard/hp/compaq_elite_8300_usdt/hda_verb.c
new file mode 100644
index 0000000000..9c0525b015
--- /dev/null
+++ b/src/mainboard/hp/compaq_elite_8300_usdt/hda_verb.c
@@ -0,0 +1,33 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <device/azalia_device.h>
+
+const u32 cim_verb_data[] = {
+	0x10ec0221,	/* Codec Vendor / Device ID: Realtek */
+	0x103c3398,	/* Subsystem ID */
+	11,		/* Number of 4 dword sets */
+	AZALIA_SUBVENDOR(0, 0x103c3398),
+	AZALIA_PIN_CFG(0, 0x12, 0x411111f0),
+	AZALIA_PIN_CFG(0, 0x14, 0x01014020),
+	AZALIA_PIN_CFG(0, 0x17, 0x90170110),
+	AZALIA_PIN_CFG(0, 0x18, 0x411111f0),
+	AZALIA_PIN_CFG(0, 0x19, 0x411111f0),
+	AZALIA_PIN_CFG(0, 0x1a, 0x02a11c3f),
+	AZALIA_PIN_CFG(0, 0x1b, 0x01813c30),
+	AZALIA_PIN_CFG(0, 0x1d, 0x598301f0),
+	AZALIA_PIN_CFG(0, 0x1e, 0x411111f0),
+	AZALIA_PIN_CFG(0, 0x21, 0x0221102f),
+
+	0x80862806,	/* Codec Vendor / Device ID: Intel */
+	0x80860101,	/* Subsystem ID */
+	4,		/* Number of 4 dword sets */
+	AZALIA_SUBVENDOR(3, 0x80860101),
+	AZALIA_PIN_CFG(3, 0x05, 0x18560010),
+	AZALIA_PIN_CFG(3, 0x06, 0x18560020),
+	AZALIA_PIN_CFG(3, 0x07, 0x58560030),
+
+};
+
+const u32 pc_beep_verbs[0] = {};
+
+AZALIA_ARRAY_SIZES;
diff --git a/src/mainboard/hp/compaq_elite_8300_usdt/mainboard.c b/src/mainboard/hp/compaq_elite_8300_usdt/mainboard.c
new file mode 100644
index 0000000000..8dbd95ef96
--- /dev/null
+++ b/src/mainboard/hp/compaq_elite_8300_usdt/mainboard.c
@@ -0,0 +1,16 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <device/device.h>
+#include <drivers/intel/gma/int15.h>
+#include <southbridge/intel/bd82x6x/pch.h>
+
+static void mainboard_enable(struct device *dev)
+{
+	install_intel_vga_int15_handler(GMA_INT15_ACTIVE_LFP_NONE,
+					GMA_INT15_PANEL_FIT_DEFAULT,
+					GMA_INT15_BOOT_DISPLAY_DEFAULT, 0);
+}
+
+struct chip_operations mainboard_ops = {
+	.enable_dev = mainboard_enable,
+};
-- 
2.41.0