Documentation/mainboard/asus/p8h61-m_lx.md

   1 # ASUS P8H61-M LX
   2
   3 This page describes how to run coreboot on the [ASUS P8H61-M LX].
   4
   5 ## Flashing coreboot
   6
   7 ```eval_rst
   8 +---------------------+------------+
   9 | Type                | Value      |
  10 +=====================+============+
  11 | Socketed flash      | yes        |
  12 +---------------------+------------+
  13 | Model               | W25Q32BV   |
  14 +---------------------+------------+
  15 | Size                | 4 MiB      |
  16 +---------------------+------------+
  17 | Package             | DIP-8      |
  18 +---------------------+------------+
  19 | Write protection    | no         |
  20 +---------------------+------------+
  21 | Dual BIOS feature   | no         |
  22 +---------------------+------------+
  23 | Internal flashing   | yes        |
  24 +---------------------+------------+
  25 ```
  26
  27 ### Internal programming
  28
  29 The main SPI flash can be accessed using [flashrom]. By default, only
  30 the BIOS region of the flash is writable. If you wish to change any
  31 other region (Management Engine or flash descriptor), then an external
  32 programmer is required.
  33
  34 The following command may be used to flash coreboot:
  35
  36 ```
  37 $ sudo flashrom --noverify-all --ifd -i bios -p internal -w coreboot.rom
  38 ```
  39
  40 The use of `--noverify-all` is required since the Management Engine
  41 region is not readable even by the host.
  42
  43 ## Known issues
  44
  45 - S3 suspend/resume does not work. This is the case for both coreboot
  46   and the vendor firmware, tested with Linux 4.9, Linux 4.17, and
  47   OpenBSD 6.3. Interestingly, it is possible to resume from S3 with
  48   Linux, but _only_ if the resume is started immediately after the
  49   suspend.
  50
  51 - There is no automatic, OS-independent fan control. This is because
  52   the Super I/O hardware monitor can only obtain valid CPU temperature
  53   readings from the PECI agent, whose complete initialisation is not
  54   publicly documented. The `coretemp` driver can still be used for
  55   accurate CPU temperature readings.
  56
  57 ## Untested
  58
  59 - PCIe graphics
  60 - parallel port
  61 - PS/2 keyboard
  62 - EHCI debug
  63 - S/PDIF audio
  64
  65 ## Working
  66
  67 - USB
  68 - Gigabit Ethernet
  69 - integrated graphics
  70 - PCIe
  71 - SATA
  72 - PS/2 mouse
  73 - serial port
  74 - hardware monitor (see [Known issues](#known-issues) for caveats)
  75 - onboard audio
  76 - front panel audio
  77 - native raminit (2 x 2GB, DDR3-1333)
  78 - native graphics init (libgfxinit)
  79 - flashrom under the vendor firmware
  80 - flashrom under coreboot
  81 - Wake-on-LAN
  82 - Using `me_cleaner` (add `-S --whitelist EFFS,FCRS` if not using
  83   `me_cleaner` as part of the coreboot build process).
  84
  85 ## Technology
  86
  87 ```eval_rst
  88 +------------------+--------------------------------------------------+
  89 | Northbridge      | :doc:`../../northbridge/intel/sandybridge/index` |
  90 +------------------+--------------------------------------------------+
  91 | Southbridge      | bd82x6x                                          |
  92 +------------------+--------------------------------------------------+
  93 | CPU              | model_206ax                                      |
  94 +------------------+--------------------------------------------------+
  95 | Super I/O        | Nuvoton NCT6776                                  |
  96 +------------------+--------------------------------------------------+
  97 | EC               | None                                             |
  98 +------------------+--------------------------------------------------+
  99 | Coprocessor      | Intel Management Engine                          |
 100 +------------------+--------------------------------------------------+
 101 ```
 102
 103 ## Extra resources
 104
 105 - [Board manual]
 106 - [Flash chip datasheet][W25Q32BV]
 107
 108 [ASUS P8H61-M LX]: https://www.asus.com/Motherboards/P8H61M_LX/
 109 [W25Q32BV]: https://web.archive.org/web/20211002141814/https://www.winbond.com/resource-files/w25q32bv_revi_100413_wo_automotive.pdf
 110 [flashrom]: https://flashrom.org/Flashrom
 111 [Board manual]: http://dlcdnet.asus.com/pub/ASUS/mb/LGA1155/P8H61_M_LX/E6803_P8H61-M_LX.zip