Add HP 8300 CMT port

Signed-off-by: Riku Viitanen <riku.viitanen@protonmail.com>

1 files changed, 818 insertions, 0 deletions

diff --git a/config/coreboot/default/patches/0036-mb-hp-Add-Compaq-Elite-8300-CMT-port.patch b/config/coreboot/default/patches/0036-mb-hp-Add-Compaq-Elite-8300-CMT-port.patch
new file mode 100644
index 00000000..6ce09e6f
--- /dev/null
+++ b/config/coreboot/default/patches/0036-mb-hp-Add-Compaq-Elite-8300-CMT-port.patch
@@ -0,0 +1,818 @@
+From 757b8965ccdd8ecd0eeec33aee3685dd9a33d34e Mon Sep 17 00:00:00 2001
+From: Riku Viitanen <riku.viitanen@protonmail.com>
+Date: Sat, 23 Dec 2023 23:09:46 +0200
+Subject: [PATCH] mb/hp: Add Compaq Elite 8300 CMT port
+
+Signed-off-by: Riku Viitanen <riku.viitanen@protonmail.com>
+---
+ .../hp/compaq_elite_8300_cmt/Kconfig          |  38 ++++
+ .../hp/compaq_elite_8300_cmt/Kconfig.name     |   2 +
+ .../hp/compaq_elite_8300_cmt/Makefile.inc     |   7 +
+ .../hp/compaq_elite_8300_cmt/acpi/ec.asl      |   1 +
+ .../compaq_elite_8300_cmt/acpi/platform.asl   |  10 +
+ .../hp/compaq_elite_8300_cmt/acpi/superio.asl |  29 +++
+ .../hp/compaq_elite_8300_cmt/acpi_tables.c    |  12 ++
+ .../hp/compaq_elite_8300_cmt/board_info.txt   |   5 +
+ .../hp/compaq_elite_8300_cmt/cmos.default     |   7 +
+ .../hp/compaq_elite_8300_cmt/cmos.layout      |  74 +++++++
+ .../hp/compaq_elite_8300_cmt/devicetree.cb    | 161 +++++++++++++++
+ .../hp/compaq_elite_8300_cmt/dsdt.asl         |  26 +++
+ .../hp/compaq_elite_8300_cmt/early_init.c     |  41 ++++
+ .../compaq_elite_8300_cmt/gma-mainboard.ads   |  17 ++
+ src/mainboard/hp/compaq_elite_8300_cmt/gpio.c | 191 ++++++++++++++++++
+ .../hp/compaq_elite_8300_cmt/hda_verb.c       |  33 +++
+ .../hp/compaq_elite_8300_cmt/mainboard.c      |  16 ++
+ 17 files changed, 670 insertions(+)
+ create mode 100644 src/mainboard/hp/compaq_elite_8300_cmt/Kconfig
+ create mode 100644 src/mainboard/hp/compaq_elite_8300_cmt/Kconfig.name
+ create mode 100644 src/mainboard/hp/compaq_elite_8300_cmt/Makefile.inc
+ create mode 100644 src/mainboard/hp/compaq_elite_8300_cmt/acpi/ec.asl
+ create mode 100644 src/mainboard/hp/compaq_elite_8300_cmt/acpi/platform.asl
+ create mode 100644 src/mainboard/hp/compaq_elite_8300_cmt/acpi/superio.asl
+ create mode 100644 src/mainboard/hp/compaq_elite_8300_cmt/acpi_tables.c
+ create mode 100644 src/mainboard/hp/compaq_elite_8300_cmt/board_info.txt
+ create mode 100644 src/mainboard/hp/compaq_elite_8300_cmt/cmos.default
+ create mode 100644 src/mainboard/hp/compaq_elite_8300_cmt/cmos.layout
+ create mode 100644 src/mainboard/hp/compaq_elite_8300_cmt/devicetree.cb
+ create mode 100644 src/mainboard/hp/compaq_elite_8300_cmt/dsdt.asl
+ create mode 100644 src/mainboard/hp/compaq_elite_8300_cmt/early_init.c
+ create mode 100644 src/mainboard/hp/compaq_elite_8300_cmt/gma-mainboard.ads
+ create mode 100644 src/mainboard/hp/compaq_elite_8300_cmt/gpio.c
+ create mode 100644 src/mainboard/hp/compaq_elite_8300_cmt/hda_verb.c
+ create mode 100644 src/mainboard/hp/compaq_elite_8300_cmt/mainboard.c
+
+diff --git a/src/mainboard/hp/compaq_elite_8300_cmt/Kconfig b/src/mainboard/hp/compaq_elite_8300_cmt/Kconfig
+new file mode 100644
+index 0000000000..d3a5c3b389
+--- /dev/null
++++ b/src/mainboard/hp/compaq_elite_8300_cmt/Kconfig
+@@ -0,0 +1,38 @@
++if BOARD_HP_COMPAQ_ELITE_8300_CMT
++
++config BOARD_SPECIFIC_OPTIONS
++	def_bool y
++	select BOARD_ROMSIZE_KB_16384
++	select HAVE_ACPI_RESUME
++	select HAVE_ACPI_TABLES
++	select HAVE_CMOS_DEFAULT
++	select HAVE_OPTION_TABLE
++	select INTEL_INT15
++	select MAINBOARD_HAS_TPM1
++	select MAINBOARD_HAS_LIBGFXINIT
++	select MAINBOARD_USES_IFD_GBE_REGION
++	select MEMORY_MAPPED_TPM
++	select NORTHBRIDGE_INTEL_SANDYBRIDGE
++	select SERIRQ_CONTINUOUS_MODE
++	select SOUTHBRIDGE_INTEL_C216
++	select SUPERIO_NUVOTON_NPCD378
++	select USE_NATIVE_RAMINIT
++
++config CBFS_SIZE
++	default 0x570000
++
++config MAINBOARD_DIR
++	default "hp/compaq_elite_8300_cmt"
++
++config MAINBOARD_PART_NUMBER
++	default "HP Compaq Elite 8300 CMT"
++
++config VGA_BIOS_ID
++	default "8086,0152"
++
++config DRAM_RESET_GATE_GPIO
++	default 60
++
++config USBDEBUG_HCD_INDEX # FIXME: check this
++	default 2
++endif
+diff --git a/src/mainboard/hp/compaq_elite_8300_cmt/Kconfig.name b/src/mainboard/hp/compaq_elite_8300_cmt/Kconfig.name
+new file mode 100644
+index 0000000000..bd399b1e76
+--- /dev/null
++++ b/src/mainboard/hp/compaq_elite_8300_cmt/Kconfig.name
+@@ -0,0 +1,2 @@
++config BOARD_HP_COMPAQ_ELITE_8300_CMT
++	bool "Compaq Elite 8300 CMT"
+diff --git a/src/mainboard/hp/compaq_elite_8300_cmt/Makefile.inc b/src/mainboard/hp/compaq_elite_8300_cmt/Makefile.inc
+new file mode 100644
+index 0000000000..fb492d3583
+--- /dev/null
++++ b/src/mainboard/hp/compaq_elite_8300_cmt/Makefile.inc
+@@ -0,0 +1,7 @@
++## SPDX-License-Identifier: GPL-2.0-only
++
++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_cmt/acpi/ec.asl b/src/mainboard/hp/compaq_elite_8300_cmt/acpi/ec.asl
+new file mode 100644
+index 0000000000..73fa78ef14
+--- /dev/null
++++ b/src/mainboard/hp/compaq_elite_8300_cmt/acpi/ec.asl
+@@ -0,0 +1 @@
++/* SPDX-License-Identifier: GPL-2.0-or-later */
+diff --git a/src/mainboard/hp/compaq_elite_8300_cmt/acpi/platform.asl b/src/mainboard/hp/compaq_elite_8300_cmt/acpi/platform.asl
+new file mode 100644
+index 0000000000..aff432b6f4
+--- /dev/null
++++ b/src/mainboard/hp/compaq_elite_8300_cmt/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_cmt/acpi/superio.asl b/src/mainboard/hp/compaq_elite_8300_cmt/acpi/superio.asl
+new file mode 100644
+index 0000000000..54f8e3fe95
+--- /dev/null
++++ b/src/mainboard/hp/compaq_elite_8300_cmt/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_cmt/acpi_tables.c b/src/mainboard/hp/compaq_elite_8300_cmt/acpi_tables.c
+new file mode 100644
+index 0000000000..8f4f83b826
+--- /dev/null
++++ b/src/mainboard/hp/compaq_elite_8300_cmt/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_cmt/board_info.txt b/src/mainboard/hp/compaq_elite_8300_cmt/board_info.txt
+new file mode 100644
+index 0000000000..16c29e82d8
+--- /dev/null
++++ b/src/mainboard/hp/compaq_elite_8300_cmt/board_info.txt
+@@ -0,0 +1,5 @@
++Category: desktop
++ROM protocol: SPI
++ROM socketed: n
++Flashrom support: y
++Release year: 2012
+diff --git a/src/mainboard/hp/compaq_elite_8300_cmt/cmos.default b/src/mainboard/hp/compaq_elite_8300_cmt/cmos.default
+new file mode 100644
+index 0000000000..6d27a79c66
+--- /dev/null
++++ b/src/mainboard/hp/compaq_elite_8300_cmt/cmos.default
+@@ -0,0 +1,7 @@
++boot_option=Fallback
++debug_level=Debug
++power_on_after_fail=Enable
++nmi=Enable
++sata_mode=AHCI
++gfx_uma_size=32M
++psu_fan_lvl=3
+diff --git a/src/mainboard/hp/compaq_elite_8300_cmt/cmos.layout b/src/mainboard/hp/compaq_elite_8300_cmt/cmos.layout
+new file mode 100644
+index 0000000000..1fc83b1a55
+--- /dev/null
++++ b/src/mainboard/hp/compaq_elite_8300_cmt/cmos.layout
+@@ -0,0 +1,74 @@
++## 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
++400	3	h	0	psu_fan_lvl
++
++# 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_cmt/devicetree.cb b/src/mainboard/hp/compaq_elite_8300_cmt/devicetree.cb
+new file mode 100644
+index 0000000000..f4efabd792
+--- /dev/null
++++ b/src/mainboard/hp/compaq_elite_8300_cmt/devicetree.cb
+@@ -0,0 +1,161 @@
++# SPDX-License-Identifier: GPL-2.0-only
++
++chip northbridge/intel/sandybridge
++	register "gfx.use_spread_spectrum_clock" = "0"
++	register "gpu_dp_b_hotplug" = "0"
++	register "gpu_dp_c_hotplug" = "0"
++	register "gpu_dp_d_hotplug" = "0"
++	# BTX mainboard: Reversed mapping
++	register "spd_addresses" = "{0x53, 0x52, 0x51, 0x50}"
++	device domain 0 on
++		subsystemid 0x103c 0x3396 inherit
++
++		device ref host_bridge on end # Host bridge Host bridge
++		device ref peg10 on end # PEG
++		device ref igd on end # iGPU
++
++		chip southbridge/intel/bd82x6x # Intel Series 6 Cougar Point PCH
++			register "docking_supported" = "0"
++			register "gen1_dec" = "0x00fc0a01"
++			register "gen2_dec" = "0x00fc0801"
++			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" = "0x1f"
++			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   end # USB 3.0 Controller
++			device ref mei1 off  end # Management Engine Interface 1
++			device ref mei2 off  end
++			device ref me_ide_r off end
++			device ref me_kt off end
++			device ref gbe on    end # Intel Gigabit Ethernet
++			device ref ehci1 on  end # USB2 EHCI #1
++			device ref ehci2 on  end # USB2 EHCI #2
++			device ref hda on    end # High Definition Audio
++			device ref sata1 on  end # SATA Controller 1
++			device ref sata2 off end # SATA Controller 2
++			device ref smbus on  end # SMBus
++
++			device ref pcie_rp1 on end
++			device ref pcie_rp2 on end
++			device ref pcie_rp3 on end
++			device ref pcie_rp4 on end
++			device ref pcie_rp5 on end
++			device ref pcie_rp5 on end
++			device ref pcie_rp7 on end
++			device ref pcie_rp8 on end
++
++			device ref pci_bridge on  end
++			device ref lpc on # LPC bridge
++				chip superio/common # copied from Z220
++					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 on		# Parallel port
++								# global
++
++								# serialice: Vendor writes:
++								irq 0x14 = 0x9c
++								irq 0x1c = 0xa8
++								irq 0x1d = 0x08
++								irq 0x22 = 0x3f
++								irq 0x1a = 0xb0
++								# dumped from superiotool:
++								irq 0x1b = 0x1e
++								irq 0x27 = 0x08
++								irq 0x2a = 0x20
++								irq 0x2d = 0x01
++								# parallel port
++								io 0x60 = 0x378
++								irq 0x70 = 0x07
++								drq 0x74 = 0x01
++							end
++							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
++		end
++	end
++end
+diff --git a/src/mainboard/hp/compaq_elite_8300_cmt/dsdt.asl b/src/mainboard/hp/compaq_elite_8300_cmt/dsdt.asl
+new file mode 100644
+index 0000000000..e8e2b3a3e5
+--- /dev/null
++++ b/src/mainboard/hp/compaq_elite_8300_cmt/dsdt.asl
+@@ -0,0 +1,26 @@
++/* 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 <southbridge/intel/bd82x6x/acpi/pch.asl>
++	}
++}
+diff --git a/src/mainboard/hp/compaq_elite_8300_cmt/early_init.c b/src/mainboard/hp/compaq_elite_8300_cmt/early_init.c
+new file mode 100644
+index 0000000000..f6b9c0a106
+--- /dev/null
++++ b/src/mainboard/hp/compaq_elite_8300_cmt/early_init.c
+@@ -0,0 +1,41 @@
++/* SPDX-License-Identifier: GPL-2.0-only */
++
++#include <bootblock_common.h>
++#include <superio/nuvoton/npcd378/npcd378.h>
++#include <superio/nuvoton/common/nuvoton.h>
++#include <northbridge/intel/sandybridge/raminit_native.h>
++#include <southbridge/intel/bd82x6x/pch.h>
++
++#define SERIAL_DEV PNP_DEV(0x2e, NPCD378_SP2)
++
++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)
++{
++	if (CONFIG(CONSOLE_SERIAL))
++		nuvoton_enable_serial(SERIAL_DEV, CONFIG_TTYS0_BASE);
++}
++
++void mainboard_get_spd(spd_raw_data *spd, bool id_only)
++{
++	/* BTX mainboard: Reversed mapping */
++	read_spd(&spd[3], 0x50, id_only);
++	read_spd(&spd[2], 0x51, id_only);
++	read_spd(&spd[1], 0x52, id_only);
++	read_spd(&spd[0], 0x53, id_only);
++}
+diff --git a/src/mainboard/hp/compaq_elite_8300_cmt/gma-mainboard.ads b/src/mainboard/hp/compaq_elite_8300_cmt/gma-mainboard.ads
+new file mode 100644
+index 0000000000..686f7d44db
+--- /dev/null
++++ b/src/mainboard/hp/compaq_elite_8300_cmt/gma-mainboard.ads
+@@ -0,0 +1,17 @@
++-- 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 :=
++     (DP2,
++      HDMI2,
++      Analog,
++      others => Disabled);
++
++end GMA.Mainboard;
+diff --git a/src/mainboard/hp/compaq_elite_8300_cmt/gpio.c b/src/mainboard/hp/compaq_elite_8300_cmt/gpio.c
+new file mode 100644
+index 0000000000..2ae852ae51
+--- /dev/null
++++ b/src/mainboard/hp/compaq_elite_8300_cmt/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_cmt/hda_verb.c b/src/mainboard/hp/compaq_elite_8300_cmt/hda_verb.c
+new file mode 100644
+index 0000000000..a1eafcda68
+--- /dev/null
++++ b/src/mainboard/hp/compaq_elite_8300_cmt/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 */
++	0x103c3396,	/* Subsystem ID */
++	11,		/* Number of 4 dword sets */
++	AZALIA_SUBVENDOR(0, 0x103c3396),
++	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, 0x415901f0),
++	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, 0x58560010),
++	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_cmt/mainboard.c b/src/mainboard/hp/compaq_elite_8300_cmt/mainboard.c
+new file mode 100644
+index 0000000000..8dbd95ef96
+--- /dev/null
++++ b/src/mainboard/hp/compaq_elite_8300_cmt/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,
++};
+-- 
+2.43.0
+