16 files changed, 828 insertions, 0 deletions
diff --git a/src/mainboard/amd/bilby/Kconfig b/src/mainboard/amd/bilby/Kconfig
new file mode 100644
index 0000000000..dbeae24895
--- /dev/null
+++ b/src/mainboard/amd/bilby/Kconfig
@@ -0,0 +1,136 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
+if BOARD_AMD_BILBY
+
+config BOARD_SPECIFIC_OPTIONS
+	def_bool y
+	select SOC_AMD_COMMON_BLOCK_USE_ESPI
+	select SOC_AMD_PICASSO
+	select BOARD_ROMSIZE_KB_16384
+	select AZALIA_PLUGIN_SUPPORT
+	select HAVE_ACPI_RESUME
+	select DRIVERS_UART_ACPI
+	select AMD_SOC_CONSOLE_UART if !AMD_LPC_DEBUG_CARD
+
+config FMDFILE
+	string
+	default "src/mainboard/amd/bilby/board.fmd"
+
+config AMD_LPC_DEBUG_CARD
+	bool "Enable LPC-Serial debug card on the debug header"
+	default n
+	select BILBY_LPC
+	select SUPERIO_SMSC_SIO1036
+	help
+	  AMD's debug card contains an SMSC SIO1036 device which provides an
+	  I/O-mapped UART in the system. This is mutually exclusive with
+	  AMD_SOC_CONSOLE_UART which selects the SoC's integrated memory-mapped
+	  UART for coreboot console output.
+
+choice
+	prompt "SMSC/Microchip 1036 SuperIO config address"
+	depends on SUPERIO_SMSC_SIO1036
+	default BILBY_SMSC_SIO1036_BASE_164E
+
+config BILBY_SMSC_SIO1036_BASE_4E
+	bool "0x4e/0x4d base address"
+
+config BILBY_SMSC_SIO1036_BASE_164E
+	bool "0x164e/0x164d base address"
+
+endchoice
+
+config SUPERIO_ADDR_BASE
+	hex
+	default 0x4e	if BILBY_SMSC_SIO1036_BASE_4E
+	default 0x164e	if BILBY_SMSC_SIO1036_BASE_164E
+
+config CBFS_SIZE
+	hex
+	default 0xfcf000 # Maximum size for the Bilby FMAP
+
+config MAINBOARD_DIR
+	string
+	default "amd/bilby"
+
+config MAINBOARD_PART_NUMBER
+	string
+	default "BILBY"
+
+config DEVICETREE
+	string
+	default "devicetree.cb"
+
+config ONBOARD_VGA_IS_PRIMARY
+	bool
+	default y
+
+config AMD_FWM_POSITION_INDEX
+	int
+	default 4
+	help
+	  TODO: might need to be adapted for better placement of files in cbfs
+
+config MANDOLIN_HAVE_MCHP_FW
+	bool "Have Microchip EC firmware?"
+	default n
+
+config MANDOLIN_MCHP_FW_FILE
+	string
+	depends on MANDOLIN_HAVE_MCHP_FW
+	default "3rdparty/blobs/mainboard/amd/mandolin/EC_mandolin.bin" if BOARD_AMD_MANDOLIN
+	default "3rdparty/blobs/mainboard/amd/mandolin/EC_cereme.bin" if BOARD_AMD_BILBY
+	help
+	  The EC firmware blob is usually the first 128kByte of the stock
+	  firmware image.
+if !AMD_LPC_DEBUG_CARD
+choice
+	prompt "State of IOMux for LPC/eMMC signals"
+	default BILBY_IOMUX_USE_EMMC
+	help
+	  Bilby is designed to use either LPC or eMMC signals.  Use this
+	  selection to determine which are configured for this image.
+
+config BILBY_IOMUX_USE_LPC
+	bool "LPC signals"
+
+config BILBY_IOMUX_USE_EMMC
+	bool "eMMC signals"
+
+endchoice
+endif # !AMD_LPC_DEBUG_CARD
+
+config BILBY_LPC
+	bool
+	default y if BILBY_IOMUX_USE_LPC
+	help
+	  Picasso's LPC bus signals are MUXed with some of the EMMC signals.
+	  Select this option if LPC signals are required.
+
+#TODO: remove this hack to not break graphics in combination with SeaBIOS
+config VGA_BIOS_DGPU_ID
+	string
+	default "1002,15d8"
+	help
+	  The default VGA BIOS PCI vendor/device ID should be set to the
+	  result of the map_oprom_vendev() function in northbridge.c.
+
+config VGA_BIOS_DGPU_FILE
+	string
+	default "3rdparty/amd_blobs/picasso/Raven2GenericVbios.bin"
+
+config EFS_SPI_READ_MODE
+	int
+	default 0 if EM100
+	default 3
+
+config EFS_SPI_SPEED
+	int
+	default 3 if EM100
+	default 0
+
+config EFS_SPI_MICRON_FLAG
+	int
+	default 0
+
+endif # BOARD_AMD_BILBY
diff --git a/src/mainboard/amd/bilby/Kconfig.name b/src/mainboard/amd/bilby/Kconfig.name
new file mode 100644
index 0000000000..52fe3f0af9
--- /dev/null
+++ b/src/mainboard/amd/bilby/Kconfig.name
@@ -0,0 +1,2 @@
+config BOARD_AMD_BILBY
+	bool "Bilby"
diff --git a/src/mainboard/amd/bilby/Makefile.inc b/src/mainboard/amd/bilby/Makefile.inc
new file mode 100644
index 0000000000..f9de6a4a73
--- /dev/null
+++ b/src/mainboard/amd/bilby/Makefile.inc
@@ -0,0 +1,33 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
+bootblock-y += bootblock.c
+bootblock-y += early_gpio.c
+
+ramstage-y += gpio.c
+ramstage-y += port_descriptors.c
+
+ifneq ($(CONFIG_BILBY_LPC),y)
+ramstage-y += emmc_gpio.c
+endif
+
+ifeq ($(CONFIG_BOARD_AMD_BILBY),y)
+APCB_SOURCES = $(MAINBOARD_BLOBS_DIR)/APCB_bilby.bin
+endif
+
+ifeq ($(CONFIG_MANDOLIN_HAVE_MCHP_FW),y)
+
+$(call add_intermediate, add_mchp_fw)
+	$(CBFSTOOL) $(obj)/coreboot.pre write -r EC -f $(CONFIG_MANDOLIN_MCHP_FW_FILE) --fill-upward
+
+else
+files_added:: warn_no_mchp
+endif # CONFIG_MANDOLIN_HAVE_MCHP_FW
+
+PHONY+=warn_no_mchp
+warn_no_mchp:
+	printf "\n\t** WARNING **\n"
+	printf "coreboot has been built without an the Microchip EC.\n"
+	printf "Do not flash this image.  Your Mandolin's power button\n"
+	printf "will not respond when you press it.\n\n"
+
+CPPFLAGS_common += -I$(src)/mainboard/$(MAINBOARDDIR)/acpi
diff --git a/src/mainboard/amd/bilby/board.fmd b/src/mainboard/amd/bilby/board.fmd
new file mode 100644
index 0000000000..442d80f341
--- /dev/null
+++ b/src/mainboard/amd/bilby/board.fmd
@@ -0,0 +1,8 @@
+FLASH@0xFF000000 16M {
+	BIOS {
+		EC 128K
+		RW_MRC_CACHE 64K
+		FMAP 4K
+		COREBOOT(CBFS)
+	}
+}
diff --git a/src/mainboard/amd/bilby/board_info.txt b/src/mainboard/amd/bilby/board_info.txt
new file mode 100644
index 0000000000..b351b8e696
--- /dev/null
+++ b/src/mainboard/amd/bilby/board_info.txt
@@ -0,0 +1 @@
+Category: eval
diff --git a/src/mainboard/amd/bilby/bootblock.c b/src/mainboard/amd/bilby/bootblock.c
new file mode 100644
index 0000000000..94a132938f
--- /dev/null
+++ b/src/mainboard/amd/bilby/bootblock.c
@@ -0,0 +1,24 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <bootblock_common.h>
+#include <amdblocks/lpc.h>
+#include <superio/smsc/sio1036/sio1036.h>
+#include "gpio.h"
+
+#define SERIAL_DEV PNP_DEV(CONFIG_SUPERIO_ADDR_BASE, SIO1036_SP1)
+
+void bootblock_mainboard_early_init(void)
+{
+	mainboard_program_early_gpios();
+
+	if (CONFIG(SUPERIO_SMSC_SIO1036)) {
+		if (CONFIG_SUPERIO_ADDR_BASE == 0x4e) {
+			lpc_enable_sio_decode(LPC_SELECT_SIO_4E4F);
+		} else {
+			// set up 16 byte wide I/O range window for the super IO
+			lpc_set_wideio_range(CONFIG_SUPERIO_ADDR_BASE & ~0xF, 16);
+		}
+		lpc_enable_decode(DECODE_ENABLE_SERIAL_PORT0 << CONFIG_UART_FOR_CONSOLE);
+		sio1036_enable_serial(SERIAL_DEV, CONFIG_TTYS0_BASE);
+	}
+}
diff --git a/src/mainboard/amd/bilby/devicetree.cb b/src/mainboard/amd/bilby/devicetree.cb
new file mode 100644
index 0000000000..addb328ba4
--- /dev/null
+++ b/src/mainboard/amd/bilby/devicetree.cb
@@ -0,0 +1,184 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
+chip soc/amd/picasso
+	register "acp_pin_cfg" = "I2S_PINS_MAX_HDA"
+
+	# Set FADT Configuration
+	register "common_config.fadt_boot_arch" = "ACPI_FADT_LEGACY_DEVICES | ACPI_FADT_8042"
+	register "common_config.fadt_flags" = "ACPI_FADT_SLEEP_BUTTON" # See table 5-34 ACPI 6.3 spec
+
+	register "emmc_config" = "{
+		.timing = SD_EMMC_DISABLE,
+	}"
+
+	register "has_usb2_phy_tune_params" = "1"
+
+	# Controller0 Port0 Default
+	register "usb_2_port_tune_params[0]" = "{
+		.com_pds_tune = 0x03,
+		.sq_rx_tune = 0x3,
+		.tx_fsls_tune = 0x3,
+		.tx_pre_emp_amp_tune = 0x03,
+		.tx_pre_emp_pulse_tune = 0x0,
+		.tx_rise_tune = 0x1,
+		.tx_vref_tune = 0x6,
+		.tx_hsxv_tune = 0x3,
+		.tx_res_tune = 0x01,
+	}"
+
+	# Controller0 Port1 Default
+	register "usb_2_port_tune_params[1]" = "{
+		.com_pds_tune = 0x03,
+		.sq_rx_tune = 0x3,
+		.tx_fsls_tune = 0x3,
+		.tx_pre_emp_amp_tune = 0x03,
+		.tx_pre_emp_pulse_tune = 0x0,
+		.tx_rise_tune = 0x1,
+		.tx_vref_tune = 0x6,
+		.tx_hsxv_tune = 0x3,
+		.tx_res_tune = 0x01,
+	}"
+
+	# Controller0 Port2 Default
+	register "usb_2_port_tune_params[2]" = "{
+		.com_pds_tune = 0x03,
+		.sq_rx_tune = 0x3,
+		.tx_fsls_tune = 0x3,
+		.tx_pre_emp_amp_tune = 0x03,
+		.tx_pre_emp_pulse_tune = 0x0,
+		.tx_rise_tune = 0x1,
+		.tx_vref_tune = 0x6,
+		.tx_hsxv_tune = 0x3,
+		.tx_res_tune = 0x01,
+	}"
+
+	# Controller0 Port3 Default
+	register "usb_2_port_tune_params[3]" = "{
+		.com_pds_tune = 0x03,
+		.sq_rx_tune = 0x3,
+		.tx_fsls_tune = 0x3,
+		.tx_pre_emp_amp_tune = 0x03,
+		.tx_pre_emp_pulse_tune = 0x0,
+		.tx_rise_tune = 0x1,
+		.tx_vref_tune = 0x6,
+		.tx_hsxv_tune = 0x3,
+		.tx_res_tune = 0x01,
+	}"
+
+	# Controller0 Port4 Default
+	register "usb_2_port_tune_params[4]" = "{
+		.com_pds_tune = 0x03,
+		.sq_rx_tune = 0x3,
+		.tx_fsls_tune = 0x3,
+		.tx_pre_emp_amp_tune = 0x02,
+		.tx_pre_emp_pulse_tune = 0x0,
+		.tx_rise_tune = 0x1,
+		.tx_vref_tune = 0x5,
+		.tx_hsxv_tune = 0x3,
+		.tx_res_tune = 0x01,
+	}"
+
+	# Controller0 Port5 Default
+	register "usb_2_port_tune_params[5]" = "{
+		.com_pds_tune = 0x03,
+		.sq_rx_tune = 0x3,
+		.tx_fsls_tune = 0x3,
+		.tx_pre_emp_amp_tune = 0x02,
+		.tx_pre_emp_pulse_tune = 0x0,
+		.tx_rise_tune = 0x1,
+		.tx_vref_tune = 0x5,
+		.tx_hsxv_tune = 0x3,
+		.tx_res_tune = 0x01,
+	}"
+
+	# USB OC pin mapping; all ports share one OC pin
+	register "usb_port_overcurrent_pin[0]" = "USB_OC_PIN_0"
+	register "usb_port_overcurrent_pin[1]" = "USB_OC_PIN_0"
+	register "usb_port_overcurrent_pin[2]" = "USB_OC_PIN_0"
+	register "usb_port_overcurrent_pin[3]" = "USB_OC_PIN_0"
+	register "usb_port_overcurrent_pin[4]" = "USB_OC_PIN_0"
+	register "usb_port_overcurrent_pin[5]" = "USB_OC_PIN_0"
+
+	# SPI Configuration
+	register "common_config.spi_config" = "{
+		.normal_speed = SPI_SPEED_33M, /* MHz */
+		.fast_speed = SPI_SPEED_66M, /* MHz */
+		.altio_speed = SPI_SPEED_33M, /* MHz */
+		.tpm_speed = SPI_SPEED_33M, /* MHz */
+		.read_mode = SPI_READ_MODE_QUAD114,
+	}"
+
+	# eSPI Configuration
+	register "common_config.espi_config" = "{
+		.std_io_decode_bitmap = ESPI_DECODE_IO_0X60_0X64_EN,
+		.generic_io_range[0] = {
+			.base = 0x662,
+			.size = 8,
+		},
+
+		.io_mode = ESPI_IO_MODE_SINGLE,
+		.op_freq_mhz = ESPI_OP_FREQ_33_MHZ,
+		.crc_check_enable = 1,
+		.dedicated_alert_pin = 1,
+		.periph_ch_en = 0,
+		.vw_ch_en = 0,
+		.oob_ch_en = 0,
+		.flash_ch_en = 0,
+	}"
+
+	# genral purpose PCIe clock output configuration
+	register "gpp_clk_config[0]" = "GPP_CLK_REQ"
+	register "gpp_clk_config[1]" = "GPP_CLK_REQ"
+	register "gpp_clk_config[2]" = "GPP_CLK_REQ"
+	register "gpp_clk_config[3]" = "GPP_CLK_OFF"
+	register "gpp_clk_config[4]" = "GPP_CLK_REQ"
+	register "gpp_clk_config[5]" = "GPP_CLK_OFF"
+	register "gpp_clk_config[6]" = "GPP_CLK_OFF"
+
+	device cpu_cluster 0 on
+		device lapic 0 on end
+	end
+	device domain 0 on
+		subsystemid 0x1022 0x1510 inherit
+		device pci 0.0 on  end # Root Complex
+		device pci 0.2 on  end # IOMMU
+		device pci 1.0 on  end # Dummy Host Bridge
+		device pci 1.1 on  end # Bridge to PCIe Ethernet chip
+		device pci 8.0 on  end # Dummy Host Bridge
+		device pci 8.1 on      # Bridge to Bus A
+			device pci 0.0 on  end # Internal GPU
+			device pci 0.1 on  end # Display HDA
+			device pci 0.2 on  end # Crypto Coprocessor
+			device pci 0.3 on  end # USB 3.1
+			device pci 0.4 off end # USB 3.1
+			device pci 0.5 on  end # Audio
+			device pci 0.6 on  end # HDA
+			device pci 0.7 on  end # non-Sensor Fusion Hub device
+		end
+		device pci 8.2 on      # Bridge to Bus B
+			device pci 0.0 off end # AHCI
+			device pci 0.1 off end # integrated Ethernet MAC
+			device pci 0.2 off end # integrated Ethernet MAC
+		end
+		device pci 14.0 on  end # SMBus
+		device pci 14.3 on      # D14F3 bridge
+			chip superio/smsc/sio1036 # optional debug card
+			end
+		end
+		device pci 14.6 off end # SDHCI
+		device pci 18.0 on  end # Data fabric [0-7]
+		device pci 18.1 on  end
+		device pci 18.2 on  end
+		device pci 18.3 on  end
+		device pci 18.4 on  end
+		device pci 18.5 on  end
+		device pci 18.6 on  end
+		device pci 18.7 on  end
+	end # domain
+
+	device mmio 0xfedc9000 on  end # UART0
+	device mmio 0xfedca000 on  end # UART1
+	device mmio 0xfedce000 off end # UART2
+	device mmio 0xfedcf000 off end # UART3
+
+end	# chip soc/amd/picasso
diff --git a/src/mainboard/amd/bilby/dsdt.asl b/src/mainboard/amd/bilby/dsdt.asl
new file mode 100644
index 0000000000..1cce71e588
--- /dev/null
+++ b/src/mainboard/amd/bilby/dsdt.asl
@@ -0,0 +1,43 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#define MAINBOARD_HAS_SPEAKER 1
+
+/* DefinitionBlock Statement */
+#include <acpi/acpi.h>
+DefinitionBlock (
+	"dsdt.aml",
+	"DSDT",
+	ACPI_DSDT_REV_2,
+	OEM_ID,
+	ACPI_TABLE_CREATOR,
+	0x00010001	/* OEM Revision */
+	)
+{	/* Start of ASL file */
+	#include <acpi/dsdt_top.asl>
+
+	/* global NVS and variables */
+	#include <globalnvs.asl>
+
+	/* PCI IRQ mapping for the Southbridge */
+	#include <pcie.asl>
+
+	/* Describe the processor tree (\_PR) */
+	#include <cpu.asl>
+
+	/* Contains the supported sleep states for this chipset */
+	#include <sleepstates.asl>
+
+	/* Contains _SWS methods */
+	#include <soc/amd/common/acpi/acpi_wake_source.asl>
+
+	/* System Bus */
+	Scope(\_SB) { /* Start \_SB scope */
+		/* global utility methods expected within the \_SB scope */
+		#include <arch/x86/acpi/globutil.asl>
+
+		/* Describe the SOC */
+		#include <soc.asl>
+
+	} /* End \_SB scope */
+}
+/* End of ASL file */
diff --git a/src/mainboard/amd/bilby/early_gpio.c b/src/mainboard/amd/bilby/early_gpio.c
new file mode 100644
index 0000000000..b6ca995c89
--- /dev/null
+++ b/src/mainboard/amd/bilby/early_gpio.c
@@ -0,0 +1,32 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <soc/gpio.h>
+#include "gpio.h"
+
+/* GPIO pins used by coreboot should be initialized in bootblock */
+
+static const struct soc_amd_gpio gpio_set_stage_reset[] = {
+	/* not LLB */
+	PAD_GPI(GPIO_12, PULL_UP),
+	/* not USB_OC1_L */
+	PAD_GPI(GPIO_17, PULL_UP),
+	/* not USB_OC2_L */
+	PAD_GPI(GPIO_18, PULL_UP),
+	/* SDIO eMMC power control */
+	PAD_NF(GPIO_22, EMMC_PWR_CTRL, PULL_NONE),
+	/* PCIe Reset 0 */
+	PAD_NF(GPIO_26, PCIE_RST_L, PULL_NONE),
+	/* PCIe Reset 1 */
+	PAD_NF(GPIO_27, PCIE_RST1_L, PULL_NONE),
+	/* eSPI CS# */
+	PAD_NF(GPIO_30, ESPI_CS_L, PULL_NONE),
+	/* FANOUT0 */
+	PAD_NF(GPIO_85, FANOUT0, PULL_NONE),
+	/* PC beep to codec */
+	PAD_NF(GPIO_91, SPKR, PULL_NONE),
+};
+
+void mainboard_program_early_gpios(void)
+{
+	program_gpios(gpio_set_stage_reset, ARRAY_SIZE(gpio_set_stage_reset));
+}
diff --git a/src/mainboard/amd/bilby/emmc_gpio.c b/src/mainboard/amd/bilby/emmc_gpio.c
new file mode 100644
index 0000000000..a88a5c59b2
--- /dev/null
+++ b/src/mainboard/amd/bilby/emmc_gpio.c
@@ -0,0 +1,27 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <soc/gpio.h>
+#include "gpio.h"
+
+/* eMMC controller driving either an SD card or eMMC device. */
+static const struct soc_amd_gpio emmc_gpios[] = {
+	PAD_NF(GPIO_21,  EMMC_CMD,	PULL_UP),
+	PAD_NF(GPIO_22,  EMMC_PWR_CTRL,	PULL_UP),
+	PAD_NF(GPIO_68,  EMMC_CD,	PULL_UP),
+	PAD_NF(GPIO_70,  EMMC_CLK,	PULL_NONE),
+	PAD_NF(GPIO_104, EMMC_DATA0,	PULL_UP),
+	PAD_NF(GPIO_105, EMMC_DATA1,	PULL_UP),
+	PAD_NF(GPIO_106, EMMC_DATA2,	PULL_UP),
+	PAD_NF(GPIO_107, EMMC_DATA3,	PULL_NONE),
+	PAD_NF(GPIO_74,  EMMC_DATA4,	PULL_UP),
+	PAD_NF(GPIO_75,  EMMC_DATA6,	PULL_UP),
+	PAD_NF(GPIO_87,  EMMC_DATA7,	PULL_UP),
+	PAD_NF(GPIO_88,  EMMC_DATA5,	PULL_UP),
+	PAD_NF(GPIO_109, EMMC_DS,	PULL_UP),
+};
+
+/* Don't call this if the board uses the LPC bus. */
+void mainboard_program_emmc_gpios(void)
+{
+	program_gpios(emmc_gpios, ARRAY_SIZE(emmc_gpios));
+}
diff --git a/src/mainboard/amd/bilby/gpio.c b/src/mainboard/amd/bilby/gpio.c
new file mode 100644
index 0000000000..999672e47e
--- /dev/null
+++ b/src/mainboard/amd/bilby/gpio.c
@@ -0,0 +1,33 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <soc/gpio.h>
+#include "gpio.h"
+
+/*
+ * As a rule of thumb, GPIO pins used by coreboot should be initialized at
+ * bootblock while GPIO pins used only by the OS should be initialized at
+ * ramstage.
+ */
+static const struct soc_amd_gpio gpio_set_stage_ram[] = {
+	/* EC SCI# */
+	PAD_SCI(GPIO_6, PULL_UP, EDGE_LOW),
+	/* I2S SDIN */
+	PAD_NF(GPIO_7, ACP_I2S_SDIN, PULL_NONE),
+	/* I2S LRCLK */
+	PAD_NF(GPIO_8, ACP_I2S_LRCLK, PULL_NONE),
+	/* not Blink */
+	PAD_GPI(GPIO_11, PULL_UP),
+	/* APU_ALS_INT# */
+	PAD_SCI(GPIO_24, PULL_UP, EDGE_LOW),
+	/* SD card detect */
+	PAD_GPI(GPIO_31, PULL_UP),
+	/* NFC IRQ */
+	PAD_INT(GPIO_69, PULL_UP, EDGE_LOW, STATUS),
+	/* NFC wake output# */
+	PAD_GPO(GPIO_89, HIGH),
+};
+
+void mainboard_program_gpios(void)
+{
+	program_gpios(gpio_set_stage_ram, ARRAY_SIZE(gpio_set_stage_ram));
+}
diff --git a/src/mainboard/amd/bilby/gpio.h b/src/mainboard/amd/bilby/gpio.h
new file mode 100644
index 0000000000..1881fe0ee2
--- /dev/null
+++ b/src/mainboard/amd/bilby/gpio.h
@@ -0,0 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef MAINBOARD_GPIO_H
+#define MAINBOARD_GPIO_H
+
+void mainboard_program_early_gpios(void); /* bootblock GPIO configuration */
+void mainboard_program_gpios(void); /* ramstage GPIO configuration */
+void mainboard_program_emmc_gpios(void); /* ramstage eMMC pin mux configuration */
+
+#endif  /* MAINBOARD_GPIO_H */
diff --git a/src/mainboard/amd/bilby/hda_verb.c b/src/mainboard/amd/bilby/hda_verb.c
new file mode 100644
index 0000000000..0f61f31525
--- /dev/null
+++ b/src/mainboard/amd/bilby/hda_verb.c
@@ -0,0 +1,97 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <device/azalia_device.h>
+
+const u32 cim_verb_data[] = {
+	/* Realtek ALC701 on mainboard */
+	0x10ec0701,
+	0x00000000,
+	0x00000016,
+
+	AZALIA_SUBVENDOR(0, 0x1022D001), // HDA Codec Subsystem ID: 0x1022D001
+
+	AZALIA_RESET(1), // Widget node 0x01 :
+	AZALIA_PIN_CFG(0, 0x12, 0xb7a60140), // Pin widget 0x12 - DMIC
+	AZALIA_PIN_CFG(0, 0x13, 0x40000000), // Pin widget 0x13 - DMIC
+	AZALIA_PIN_CFG(0, 0x14, 0x90170110), // Pin widget 0x14 - FRONT (Port-D)
+	AZALIA_PIN_CFG(0, 0x15, 0x411111f0), // Pin widget 0x15 - I2S-OUT
+	AZALIA_PIN_CFG(0, 0x16, 0x411111f0), // Pin widget 0x16 - LINE3 (Port-B)
+	AZALIA_PIN_CFG(0, 0x17, 0x411111f0), // Pin widget 0x17 - I2S-OUT
+	AZALIA_PIN_CFG(0, 0x18, 0x411111f0), // Pin widget 0x18 - I2S-IN
+	AZALIA_PIN_CFG(0, 0x19, 0x411111f0), // Pin widget 0x19 - MIC2 (Port-F)
+	AZALIA_PIN_CFG(0, 0x1a, 0x411111f0), // Pin widget 0x1A - LINE1 (Port-C)
+	AZALIA_PIN_CFG(0, 0x1b, 0x04a11050), // Pin widget 0x1B - LINE2 (Port-E)
+	AZALIA_PIN_CFG(0, 0x1d, 0x40600001), // Pin widget 0x1D - PC-BEEP
+	AZALIA_PIN_CFG(0, 0x1e, 0x04451130), // Pin widget 0x1E - S/PDIF-OUT
+	AZALIA_PIN_CFG(0, 0x1f, 0x411111f0), // Pin widget 0x1F - S/PDIF-IN
+	AZALIA_PIN_CFG(0, 0x21, 0x04211020), // Pin widget 0x21 - HP-OUT (Port-I)
+	AZALIA_PIN_CFG(0, 0x29, 0x411111f0), // Pin widget 0x29 - I2S-IN
+	0x02050038, 0x02047901, 0x0205006b, 0x02040260, // NID 0x20 -0 Set Class-D output
+							//  power as 2.2W@4 Ohm, and
+							//  MIC2-VREFO-R is controlled by
+							//  Line2 port.
+	0x0205001a, 0x02048c03, 0x02050045, 0x0204b289, // NID 0x20 - 1
+	0x0205004a, 0x0204201b, 0x0205004a, 0x0204201b, // NID 0x20 - 2
+	0x02050010, 0x02040420, 0x01470c00, 0x02050036, // Dos beep path - 1
+	0x02047151, 0x01470740, 0x0143b000, 0x01470c02, // Dos beep path - 2
+
+	/* Realtek ALC285 on extension card */
+	0x10ec0285,
+	0x00000000,
+	0x00000028,
+
+	AZALIA_SUBVENDOR(0, 0x1022D002),
+
+	AZALIA_RESET(1), // Widget node 0x01 :
+	AZALIA_PIN_CFG(0, 0x12, 0xb7a60140), // Pin widget 0x12 - DMIC
+	AZALIA_PIN_CFG(0, 0x13, 0x40000000), // Pin widget 0x13 - DMIC
+	AZALIA_PIN_CFG(0, 0x14, 0x90170110), // Pin widget 0x14 - Front (Port-D)
+	AZALIA_PIN_CFG(0, 0x16, 0x411111f0), // Pin widget 0x16 - NPC
+	AZALIA_PIN_CFG(0, 0x17, 0x411111f0), // Pin widget 0x17 - I2S OUT
+	AZALIA_PIN_CFG(0, 0x18, 0x411111f0), // Pin widget 0x18 - I2S IN
+	AZALIA_PIN_CFG(0, 0x19, 0x411111f0), // Pin widget 0x19 - MIC2 (Port-F)
+	AZALIA_PIN_CFG(0, 0x1a, 0x411111f0), // Pin widget 0x1A - NPC
+	AZALIA_PIN_CFG(0, 0x1b, 0x04a19030), // Pin widget 0x1B - LINE2 (Port-E)
+	AZALIA_PIN_CFG(0, 0x1d, 0x4066192d), // Pin widget 0x1D - BEEP-IN
+	AZALIA_PIN_CFG(0, 0x1e, 0x411111f0), // Pin widget 0x1E - S/PDIF-OUT
+	AZALIA_PIN_CFG(0, 0x21, 0x04211020), // Pin widget 0x21 - HP1-OUT (Port-I)
+	0x05c50011, 0x05c40003, 0x05c50011, 0x05c40003, // dis. Silence detect delay turn off
+	0x0205003c, 0x0204f254, 0x0205003c, 0x0204f214, // Class-D power on reset
+	0x02050045, 0x0204b009, 0x02050063, 0x02040020, // Set TRS + turn off MIC2 VREFO
+							//  gating with HP-JD.
+	0x0205004a, 0x020420b0, 0x02050009, 0x02043803, // Enable HP JD + Set JD2 to 1 port
+							//  JD for WoV
+	0x0205000b, 0x0204777a, 0x0205000b, 0x0204777a, // Set TRS + Set JD2 pull up.
+	0x02050038, 0x02043909, 0x05c50000, 0x05c43482, // NID 0x20 set class-D to 2W@4ohm
+							//  (+12dB gain) + Set sine
+							//  tone gain(0x34)
+	0x05350000, 0x0534002a, 0x05350000, 0x0534002a, // Disable EQ + set 100Hz 2nd High
+							//  Pass filter
+	0x0535001d, 0x05340800, 0x0535001e, 0x05340800, // Left Channel-1
+	0x05350005, 0x053403f6, 0x05350006, 0x0534854c, // Left Channel-2
+	0x05350007, 0x05341e09, 0x05350008, 0x05346472, // Left Channel-3
+	0x05350009, 0x053401fb, 0x0535000a, 0x05344836, // Left Channel-4
+	0x0535000b, 0x05341c00, 0x0535000c, 0x05340000, // Left Channel-5
+	0x0535000d, 0x05340200, 0x0535000e, 0x05340000, // Left Channel-6
+	0x05450000, 0x05440000, 0x0545001d, 0x05440800, // Right Channel-1
+	0x0545001e, 0x05440800, 0x05450005, 0x054403f6, // Right Channel-2
+	0x05450006, 0x0544854c, 0x05450007, 0x05441e09, // Right Channel-3
+	0x05450008, 0x05446472, 0x05450009, 0x054401fb, // Right Channel-4
+	0x0545000a, 0x05444836, 0x0545000b, 0x05441c00, // Right Channel-5
+	0x0545000c, 0x05440000, 0x0545000d, 0x05440200, // Right Channel-6
+	0x0545000e, 0x05440000, 0x05350000, 0x0534c02a, // Right Channel-7+ EQ Update & Enable
+	0x05d50006, 0x05d44c50, 0x05d50002, 0x05d46004, // AGC-1 Disable + (Front Gain=0dB )
+	0x05d50003, 0x05d45e5e, 0x05d50001, 0x05d4d783, // AGC-2 (Back Boost Gain = -0.375dB,
+							//  Limiter = -1.125dB)
+	0x05d50009, 0x05d451ff, 0x05d50006, 0x05d44e50, // AGC-3 + AGC Enable
+	0x02050010, 0x02040020, 0x02050040, 0x02048800, // EAPD set to verb-control.
+	0x02050030, 0x02049000, 0x02050037, 0x0204fe15, // Class D silent detection Enable
+							//  -84dB threshold
+	0x05b50006, 0x05b40044, 0x05a50001, 0x05a4001f, // Set headphone gain and Set pin1
+							//  to GPIO2
+};
+
+const u32 pc_beep_verbs[] = {
+};
+
+AZALIA_ARRAY_SIZES;
diff --git a/src/mainboard/amd/bilby/mainboard.c b/src/mainboard/amd/bilby/mainboard.c
new file mode 100644
index 0000000000..97acf6c97a
--- /dev/null
+++ b/src/mainboard/amd/bilby/mainboard.c
@@ -0,0 +1,110 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <console/console.h>
+#include <device/device.h>
+#include <acpi/acpi.h>
+#include <amdblocks/amd_pci_util.h>
+#include <FspsUpd.h>
+#include <soc/cpu.h>
+#include <soc/southbridge.h>
+#include <soc/pci_devs.h>
+#include <types.h>
+#include <commonlib/helpers.h>
+#include <chip.h>
+#include "gpio.h"
+
+/* TODO: recheck IRQ tables */
+
+/*
+ * These arrays set up the FCH PCI_INTR registers 0xC00/0xC01.
+ * This table is responsible for physically routing the PIC and
+ * IOAPIC IRQs to the different PCI devices on the system.  It
+ * is read and written via registers 0xC00/0xC01 as an
+ * Index/Data pair.  These values are chipset and mainboard
+ * dependent and should be updated accordingly.
+ */
+static uint8_t fch_pic_routing[0x80];
+static uint8_t fch_apic_routing[0x80];
+
+_Static_assert(sizeof(fch_pic_routing) == sizeof(fch_apic_routing),
+	"PIC and APIC FCH interrupt tables must be the same size");
+
+static const struct fch_irq_routing {
+	uint8_t intr_index;
+	uint8_t pic_irq_num;
+	uint8_t apic_irq_num;
+} bilby_fch[] = {
+	{ PIRQ_A,	8,		16 },
+	{ PIRQ_B,	10,		17 },
+	{ PIRQ_C,	11,		18 },
+	{ PIRQ_D,	12,		19 },
+	{ PIRQ_SCI,	9,		 9 },
+	{ PIRQ_SD,	PIRQ_NC,	16 },
+	{ PIRQ_SDIO,	PIRQ_NC,	16 },
+	{ PIRQ_SATA,	PIRQ_NC,	19 },
+	{ PIRQ_EMMC,	PIRQ_NC,	17 },
+	{ PIRQ_GPIO,	 7,		 7 },
+	{ PIRQ_I2C2,	 6,		 6 },
+	{ PIRQ_I2C3,	14,		14 },
+	{ PIRQ_UART0,	 4,		 4 },
+	{ PIRQ_UART1,	 3,		 3 },
+	{ PIRQ_UART2,	 4,		 4 },
+	{ PIRQ_UART3,	 3,		 3 },
+
+	/* The MISC registers are not interrupt numbers */
+	{ PIRQ_MISC,	0xfa,		0x00 },
+	{ PIRQ_MISC0,	0x91,		0x00 },
+	{ PIRQ_MISC1,	0x00,		0x00 },
+	{ PIRQ_MISC2,	0x00,		0x00 },
+};
+
+static void init_tables(void)
+{
+	const struct fch_irq_routing *entry;
+	int i;
+
+	memset(fch_pic_routing, PIRQ_NC, sizeof(fch_pic_routing));
+	memset(fch_apic_routing, PIRQ_NC, sizeof(fch_apic_routing));
+
+	for (i = 0; i < ARRAY_SIZE(bilby_fch); i++) {
+		entry = bilby_fch + i;
+		fch_pic_routing[entry->intr_index] = entry->pic_irq_num;
+		fch_apic_routing[entry->intr_index] = entry->apic_irq_num;
+	}
+}
+
+static void pirq_setup(void)
+{
+	init_tables();
+	intr_data_ptr = fch_apic_routing;
+	picr_data_ptr = fch_pic_routing;
+}
+
+static void mainboard_init(void *chip_info)
+{
+	struct soc_amd_picasso_config *cfg = config_of_soc();
+
+	if (!CONFIG(BILBY_LPC))
+		cfg->emmc_config.timing = SD_EMMC_EMMC_HS400;
+
+	mainboard_program_gpios();
+
+	/* Re-muxing LPCCLK0 can hang the system if LPC is in use. */
+	if (CONFIG(BILBY_LPC))
+		printk(BIOS_INFO, "eMMC not available due to LPC requirement\n");
+	else
+		mainboard_program_emmc_gpios();
+}
+
+static void bilby_enable(struct device *dev)
+{
+	printk(BIOS_INFO, "Mainboard " CONFIG_MAINBOARD_PART_NUMBER " Enable.\n");
+
+	/* Initialize the PIRQ data structures for consumption */
+	pirq_setup();
+}
+
+struct chip_operations mainboard_ops = {
+	.init = mainboard_init,
+	.enable_dev = bilby_enable,
+};
diff --git a/src/mainboard/amd/bilby/port_descriptors.c b/src/mainboard/amd/bilby/port_descriptors.c
new file mode 100644
index 0000000000..8fc94f8c3b
--- /dev/null
+++ b/src/mainboard/amd/bilby/port_descriptors.c
@@ -0,0 +1,87 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <soc/platform_descriptors.h>
+#include <types.h>
+
+static const fsp_dxio_descriptor pollock_dxio_descriptors[] = {
+	{ /* NVME SSD */
+		.port_present = true,
+		.engine_type = PCIE_ENGINE,
+		.start_logical_lane = 0,
+		.end_logical_lane = 0,
+		.device_number = 1,
+		.function_number = 3,
+		.link_aspm = ASPM_L1,
+		.link_aspm_L1_1 = true,
+		.link_aspm_L1_2 = true,
+		.turn_off_unused_lanes = true,
+		.clk_req = CLK_REQ0
+	},
+	{ /* WWAN */
+		.port_present = true,
+		.engine_type = PCIE_ENGINE,
+		.start_logical_lane = 1,
+		.end_logical_lane = 1,
+		.device_number = 1,
+		.function_number = 4,
+		.link_aspm = ASPM_L1,
+		.link_aspm_L1_1 = true,
+		.link_aspm_L1_2 = true,
+		.turn_off_unused_lanes = true,
+		.clk_req = CLK_REQ2
+	},
+	{ /* LAN */
+		.port_present = true,
+		.engine_type = PCIE_ENGINE,
+		.start_logical_lane = 4,
+		.end_logical_lane = 4,
+		.device_number = 1,
+		.function_number = 1,
+		.link_aspm = ASPM_L1,
+		.link_aspm_L1_1 = true,
+		.link_aspm_L1_2 = true,
+		.turn_off_unused_lanes = true,
+		.clk_req = CLK_REQ1
+	},
+	{ /* WLAN */
+		.port_present = true,
+		.engine_type = PCIE_ENGINE,
+		.start_logical_lane = 5,
+		.end_logical_lane = 5,
+		.device_number = 1,
+		.function_number = 2,
+		.link_aspm = ASPM_L1,
+		.link_aspm_L1_1 = true,
+		.link_aspm_L1_2 = true,
+		.turn_off_unused_lanes = true,
+		.clk_req = CLK_REQ4
+	}
+};
+
+fsp_ddi_descriptor pollock_ddi_descriptors[] = {
+	{ /* DDI0 - eDP */
+		.connector_type = EDP,
+		.aux_index = AUX1,
+		.hdp_index = HDP1
+	},
+	{ /* DDI1 - DP */
+		.connector_type = DP,
+		.aux_index = AUX2,
+		.hdp_index = HDP2
+	},
+	{ /* DDI2 - DP */
+		.connector_type = DP,
+		.aux_index = AUX4,
+		.hdp_index = HDP4,
+	}
+};
+
+void mainboard_get_dxio_ddi_descriptors(
+		const fsp_dxio_descriptor **dxio_descs, size_t *dxio_num,
+		const fsp_ddi_descriptor **ddi_descs, size_t *ddi_num)
+{
+	*dxio_descs = pollock_dxio_descriptors;
+	*dxio_num = ARRAY_SIZE(pollock_dxio_descriptors);
+	*ddi_descs = pollock_ddi_descriptors;
+	*ddi_num = ARRAY_SIZE(pollock_ddi_descriptors);
+}
diff --git a/src/mainboard/amd/bilby/romstage.c b/src/mainboard/amd/bilby/romstage.c
new file mode 100644
index 0000000000..853b0877b3
--- /dev/null
+++ b/src/mainboard/amd/bilby/romstage.c
@@ -0,0 +1 @@
+/* SPDX-License-Identifier: GPL-2.0-only */