system76-coreboot/src/mainboard/amd/bilby/devicetree.cb

# SPDX-License-Identifier: GPL-2.0-only

chip soc/amd/picasso
	# ACP Configuration
	register "common_config.acp_config.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,
		.alert_pin = ESPI_ALERT_PIN_PUSH_PULL,
		.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_REQ"
	register "gpp_clk_config[4]" = "GPP_CLK_REQ"
	register "gpp_clk_config[5]" = "GPP_CLK_REQ"
	register "gpp_clk_config[6]" = "GPP_CLK_REQ"

	register "pspp_policy" = "DXIO_PSPP_BALANCED"

	device domain 0 on
		subsystemid 0x1022 0x1510 inherit
		device ref iommu on end
		device ref gpp_bridge_0 on end
		device ref gpp_bridge_1 on end
		device ref gpp_bridge_4 on end # NVMe
		device ref internal_bridge_a on
			device ref gfx on end # Internal GPU
			device ref gfx_hda on end # Display HDA
			device ref crypto on end # Crypto Coprocessor
			device ref xhci_0 on end # USB 3.1
			device ref xhci_1 off end # USB 3.1
			device ref acp on end # Audio
			device ref hda on end # HDA
			device ref mp2 on end # non-Sensor Fusion Hub device
		end
		device ref internal_bridge_b on
			device ref sata off end # AHCI
			device ref xgbe_0 off end # integrated Ethernet MAC
			device ref xgbe_1 off end # integrated Ethernet MAC
		end
		device ref lpc_bridge on
			chip superio/smsc/sio1036 # optional debug card
			end
		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