Documentation/mainboard/hp/z220_sff.md

   1 # HP Z220 SFF Workstation
   2
   3 This page describes how to run coreboot on the [HP Z220 SFF Workstation] desktop
   4 from [HP].
   5
   6 ## TODO
   7
   8 The following things are still missing from this coreboot port:
   9
  10 - Extended HWM reporting
  11 - Advanced LED control
  12 - Advanced power configuration in S3
  13
  14 ## Flashing coreboot
  15
  16 ```eval_rst
  17 +---------------------+-------------+
  18 | Type                | Value       |
  19 +=====================+=============+
  20 | Socketed flash      | no          |
  21 +---------------------+-------------+
  22 | Model               | N25Q128..3E |
  23 +---------------------+-------------+
  24 | Size                | 16 MiB      |
  25 +---------------------+-------------+
  26 | In circuit flashing | yes         |
  27 +---------------------+-------------+
  28 | Package             | SOIC-16     |
  29 +---------------------+-------------+
  30 | Write protection    | No          |
  31 +---------------------+-------------+
  32 | Dual BIOS feature   | No          |
  33 +---------------------+-------------+
  34 | Internal flashing   | yes         |
  35 +---------------------+-------------+
  36 ```
  37
  38 ### Internal programming
  39
  40 The SPI flash can be accessed using [flashrom].
  41
  42 ### External programming
  43
  44 External programming with an SPI adapter and [flashrom] does work, but it powers the
  45 whole southbridge complex. You need to supply enough current through the programming adapter.
  46
  47 If you want to use a SOIC pomona test clip, you have to cut the 2nd DRAM DIMM holder, as
  48 otherwise there's not enough space near the flash.
  49
  50 In both case, if ME has not been completely disabled, ME/AMT Flash Override jumper had better
  51 be temporary closed for flashing to disable the locking of regions, and prevent ME to run and
  52 interfere.
  53
  54 ## Side note
  55 The mainboard of [HP Compaq Elite 8300 SFF] is very similar to the one of Z220 SFF, except
  56 that Compaq Elite 8300 uses Q77 instead of C216 for its PCH, and their boot firmwares are
  57 even interchangeable, so should do coreboot images built for them.
  58
  59 ## Technology
  60
  61 ```eval_rst
  62 +------------------+--------------------------------------------------+
  63 | Northbridge      | :doc:`../../northbridge/intel/sandybridge/index` |
  64 +------------------+--------------------------------------------------+
  65 | Southbridge      | bd82x6x                                          |
  66 +------------------+--------------------------------------------------+
  67 | CPU              | model_206ax                                      |
  68 +------------------+--------------------------------------------------+
  69 | SuperIO          | :doc:`../../superio/nuvoton/npcd378`             |
  70 +------------------+--------------------------------------------------+
  71 | EC               |                                                  |
  72 +------------------+--------------------------------------------------+
  73 | Coprocessor      | Intel ME                                         |
  74 +------------------+--------------------------------------------------+
  75 ```
  76
  77 [HP Z220 SFF Workstation]: https://support.hp.com/za-en/document/c03386950
  78 [HP Compaq Elite 8300 SFF]: https://support.hp.com/us-en/document/c03345460
  79 [HP]: https://www.hp.com/
  80 [flashrom]: https://flashrom.org/Flashrom