mb/lenovo/r500: Add mainboard

Tested:
- Ethernet NIC
- Wifi RFKill
- USB
- LVDS, VGA with libgfxinit
- Booting with dock attached (COM1)
- Keyboard, trackpoint
- SeaBIOS 1.12
- S3 resume
- Tested in descriptor mode, with vendor FD and ME
- Add VBT to ACPI OPregion

Untested:
- SATA (likely works)
- Trackpad (my cable is broken, likely works)
- Displayport (likely works)
- Descriptorless mode
- DVD drive
- Extra battery
- model with ATI GPU

Does not work:
- Dock hotplug
- Quad core CPU (hangs during AP init, probably needs hardware mod)
- Hotplugging the expresscard slot (works with 'echo 1 | sudo tee
/sys/bus/pci/rescan')

TODO:
- proper dock support
- documentation

note: This board was hard to flash, I had to desolder the flash.

TESTED: on a R500 with an Intel iGPU, SeaBIOS 1.12, Debian 9,
Linux 4.9 from USB

Change-Id: I9e129b2e916acdf2b8534fa9d8d2cfc8f64f5815
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/28644
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>

1 files changed, 1 insertions, 35 deletions

diff --git a/src/mainboard/lenovo/t400/devicetree.cb b/src/mainboard/lenovo/t400/devicetree.cb
index 475c45ebbd..b4c2ea89b1 100644
--- a/src/mainboard/lenovo/t400/devicetree.cb
+++ b/src/mainboard/lenovo/t400/devicetree.cb
@@ -211,46 +211,12 @@ chip northbridge/intel/gm45
 						io 0x60 = 0x1620
 					end
 				end
-
-				chip drivers/lenovo/hybrid_graphics
-					device pnp ff.f on end # dummy
-
-					register "detect_gpio" = "21"
-
-					register "has_panel_hybrid_gpio" = "1"
-					register "panel_hybrid_gpio" = "22"
-					register "panel_integrated_lvl" = "0"
-
-					register "has_backlight_gpio" = "1"
-					register "backlight_gpio" = "19"
-					register "backlight_integrated_lvl" = "0"
-
-					register "has_dgpu_power_gpio" = "1"
-					register "dgpu_power_gpio" = "49"
-					register "dgpu_power_off_lvl" = "0"
-
-					register "has_thinker1" = "0"
-				end
 			end
 			device pci 1f.2 on # SATA/IDE 1
 				subsystemid 0x17aa 0x20f8
 				ioapic_irq 2 INTB 0x11
 			end
-			device pci 1f.3 on # SMBus
-				subsystemid 0x17aa 0x20f9
-				ioapic_irq 2 INTC 0x12
-				# eeprom, 8 virtual devices, same chip
-				chip drivers/i2c/at24rf08c
-					device i2c 54 on end
-					device i2c 55 on end
-					device i2c 56 on end
-					device i2c 57 on end
-					device i2c 5c on end
-					device i2c 5d on end
-					device i2c 5e on end
-					device i2c 5f on end
-				end
-			end
+			device pci 1f.3 on end	# SMBus
 			device pci 1f.5 off end # SATA/IDE 2
 			device pci 1f.6 off end # Thermal
 		end