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-rw-r--r--src/mainboard/google/rambi/variants/enguarde/devicetree.cb101
1 files changed, 101 insertions, 0 deletions
diff --git a/src/mainboard/google/rambi/variants/enguarde/devicetree.cb b/src/mainboard/google/rambi/variants/enguarde/devicetree.cb
new file mode 100644
index 000000000000..f3792fe70a1e
--- /dev/null
+++ b/src/mainboard/google/rambi/variants/enguarde/devicetree.cb
@@ -0,0 +1,101 @@
+chip soc/intel/baytrail
+
+ # SATA port enable mask (2 ports)
+ register "sata_port_map" = "0x1"
+ register "sata_ahci" = "0x1"
+ register "ide_legacy_combined" = "0x0"
+
+ # Route USB ports to XHCI
+ register "usb_route_to_xhci" = "1"
+
+ # USB Port Disable Mask
+ register "usb2_port_disable_mask" = "0x0"
+ register "usb3_port_disable_mask" = "0x0"
+
+ # USB PHY settings
+ # TODO: These values are from Baytrail and need tuned for Enguarde board
+ register "usb2_per_port_lane0" = "0x00049a09"
+ register "usb2_per_port_rcomp_hs_pullup0" = "0x0300401d"
+ register "usb2_per_port_lane1" = "0x00049a09"
+ register "usb2_per_port_rcomp_hs_pullup1" = "0x0300401d"
+ register "usb2_per_port_lane2" = "0x00049209"
+ register "usb2_per_port_rcomp_hs_pullup2" = "0x01004015"
+ register "usb2_per_port_lane3" = "0x00049a09"
+ register "usb2_per_port_rcomp_hs_pullup3" = "0x0300401d"
+
+ # LPE audio codec settings
+ register "lpe_codec_clk_freq" = "25" # 25MHz clock
+ register "lpe_codec_clk_num" = "0" # PMC_PLT_CLK[0]
+
+ # SD Card controller
+ register "sdcard_cap_low" = "0x036864b2"
+ register "sdcard_cap_high" = "0x0"
+
+ # Enable devices in ACPI mode
+ register "lpe_acpi_mode" = "1"
+ register "lpss_acpi_mode" = "1"
+ register "scc_acpi_mode" = "1"
+
+ # Allow PCIe devices to wake system from suspend
+ register "pcie_wake_enable" = "1"
+
+ # Enable PIPEA as DP_C
+ register "gpu_pipea_port_select" = "2" # DP_C
+ register "gpu_pipea_power_cycle_delay" = "6" # 600ms
+ register "gpu_pipea_power_on_delay" = "5000" # 500ms
+ register "gpu_pipea_light_on_delay" = "70" # 7ms
+ register "gpu_pipea_power_off_delay" = "500" # 50ms
+ register "gpu_pipea_light_off_delay" = "2000" # 200ms
+
+ # VR PS2 control
+ register "vnn_ps2_enable" = "1"
+ register "vcc_ps2_enable" = "1"
+
+ # Disable SLP_X stretching after SUS power well fail.
+ register "disable_slp_x_stretch_sus_fail" = "1"
+
+ device cpu_cluster 0 on
+ device lapic 0 on end
+ end
+ device domain 0 on
+ device pci 00.0 on end # SoC router
+ device pci 02.0 on end # GFX
+ device pci 11.0 off end # SDIO
+ device pci 12.0 on end # SD
+ device pci 13.0 on end # SATA
+ device pci 14.0 on end # XHCI
+ device pci 15.0 on end # LPE
+ device pci 17.0 on end # MMC
+ device pci 18.0 on end # SIO_DMA1
+ device pci 18.1 on end # I2C1
+ device pci 18.2 on end # I2C2
+ device pci 18.3 off end # I2C3
+ device pci 18.4 off end # I2C4
+ device pci 18.5 on end # I2C5
+ device pci 18.6 off end # I2C6
+ device pci 18.7 off end # I2C7
+ device pci 1a.0 on end # TXE
+ device pci 1b.0 on end # HDA
+ device pci 1c.0 on end # PCIE_PORT1
+ device pci 1c.1 on end # PCIE_PORT2
+ device pci 1c.2 off end # PCIE_PORT3
+ device pci 1c.3 off end # PCIE_PORT4
+ device pci 1d.0 on end # EHCI
+ device pci 1e.0 on end # SIO_DMA2
+ device pci 1e.1 off end # PWM1
+ device pci 1e.2 off end # PWM2
+ device pci 1e.3 off end # HSUART1
+ device pci 1e.4 off end # HSUART2
+ device pci 1e.5 off end # SPI
+ device pci 1f.0 on
+ chip ec/google/chromeec
+ # We only have one init function that
+ # we need to call to initialize the
+ # keyboard part of the EC.
+ device pnp ff.1 on # dummy address
+ end
+ end
+ end # LPC Bridge
+ device pci 1f.3 off end # SMBus
+ end
+end