Board:lenovo/t520: Difference between revisions
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== Status == | == Status == | ||
Issues | ==== Issues ==== | ||
* yellow USB port isn't powered in power-off state. | * yellow USB port isn't powered in power-off state. | ||
* Discrete GPU not supported | * Discrete GPU not supported | ||
| Line 13: | Line 13: | ||
* some power management states missing | * some power management states missing | ||
Tested | ==== Tested ==== | ||
* Ultrabay SATA | * Ultrabay SATA | ||
* RAM module combinations of mrc: 4G+0, 0+4G, 8G+0, native: 4G+0, 8G+0 | * RAM module combinations of mrc: 4G+0, 0+4G, 8G+0, native: 4G+0, 8G+0 | ||
| Line 38: | Line 38: | ||
* Suspend to Ram | * Suspend to Ram | ||
Not tested | ==== Not tested ==== | ||
* Firewire | * Firewire | ||
* eSATA | * eSATA | ||
Revision as of 17:22, 5 September 2015
Status
Issues
- yellow USB port isn't powered in power-off state.
- Discrete GPU not supported
- DisplayPort only connected to Discrete GPU
- TPM. At the moment there is only basic support inside coreboot...
- Windows hung while boot or reboots before start ( cdrom.sys )
- Boot time issues ( keyboard rest timeout )
- Brightness steps lacks ( changing very slow )
- no dmar (IOMMU)
- ultrabay hot plug (event missing?)
- some power management states missing
Tested
- Ultrabay SATA
- RAM module combinations of mrc: 4G+0, 0+4G, 8G+0, native: 4G+0, 8G+0
- USB ports
- Video (internal)
- ExpressCard slot (including hot-plugging)
- Gigabit LAN
- Mini-PCIe slot WLAN
- Linux (through SeaBIOS-as-payload)
- Trackpoint & Touchpad
- Fn hotkeys
- Thinklight
- Bluetooth
- SD card slot
- Sound (integrated speakers, integrated mic, external headphones, external mic)
- Fingerprint reader
- Docking tested with Lenovo ThinkPad Mini Dock Plus Series 3 USB 3.0 Type 4338
- VGA
- LAN
- USB Hub
- Line-in/out
- DVI-D / DisplayPort not supported because it is connected to discrete graphics
- VGA output
- Suspend to Ram
Not tested
- Firewire
- eSATA
- mSATA
- USB WWAN
- Thermal management
- Webcam
Proprietary Components Status
- CPU Microcode
- FDT(Flash Descriptor Table) => Always needed
- ME(Management Engine) => you do not have to touch it(just leave it where it is)
- GbE(Gigabit Ethernet embedded mac) => you do not have to touch it(just leave it where it is)
Photos
Flashing
T520 has a ST / numonyx M25PX64VG 8 MiB flash chip in a VDFPN8 package.
All Battery's and the Power-supply must be disconnected before flashing.
Next to the flash chip is a connector solder place "J100" where it is connected to.
1 N/C 2 N/C 3 /CS 4 VCC 5 MISO 6 /HOLD 7 /WP 8 CLK 9 GND 10 MOSI
Flash layout: FLREG0: 0x00000000
Flash Region 0 (Flash Descriptor): 00000000 - 00000fff
FLREG1: 0x07ff0500
Flash Region 1 (BIOS): 00500000 - 007fffff
FLREG2: 0x04ff0003
Flash Region 2 (Intel ME): 00003000 - 004fffff
FLREG3: 0x00020001
Flash Region 3 (GbE): 00001000 - 00002fff
FLREG4: 0x00000fff
Flash Region 4 (Platform Data): 00fff000 - 00000fff (unused)
Vendor firmware locks the flash and so you need to flash externally (unless until someone figures out a way around it).