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coreboot-kgpe-d16/Documentation/mainboard/asus/p8c_ws.md
Bill XIE 3b1a9944aa mb/asus/p8x7x-series: Add P8C WS as a variant of P8X7X series 
Mainboard information can be found in the included documentation.

Signed-off-by: Bill XIE <persmule@hardenedlinux.org>
Change-Id: Idb696193e5a67c42adf45e54d455d2dff7681ca7
Reviewed-on: https://review.coreboot.org/c/coreboot/+/55850
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2021-07-01 09:42:34 +00:00

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ASUS P8C WS

This page describes how to run coreboot on the [ASUS P8H77-V].

Flashing coreboot

+---------------------+----------------+
| Type                | Value          |
+=====================+================+
| Socketed flash      | yes            |
+---------------------+----------------+
| Model               | W25Q64FVA1Q    |
+---------------------+----------------+
| Size                | 8 MiB          |
+---------------------+----------------+
| Package             | DIP-8          |
+---------------------+----------------+
| Write protection    | no             |
+---------------------+----------------+
| Dual BIOS feature   | no             |
+---------------------+----------------+
| Internal flashing   | yes            |
+---------------------+----------------+

The flash IC is located beside the SATA ports (circled):

How to flash

Unlike ordinary desktop boards, the BIOS version 3202 of ASUS P8C WS does not apply any write protection, so the main SPI flash can be accessed using flashrom, and the whole flash is writable.

The following command may be used to flash coreboot. (To do so, linux kernel should be started with iomem=relaxed)

# flashrom -p internal -w coreboot.rom

The flash chip is a socketed DIP-8 SPI flash, so it's also easy to remove and flash externally.

Working

  • Intel Xeon E3-1225 V2 with 4 M391B1G73BH0-YK0 UDIMMs, ECC confirmed active
  • PS/2 keyboard with SeaBIOS 1.14.0 and Debian GNU/Linux with kernel 5.10.40
  • Both Onboard NIC
  • S3 Suspend to RAM
  • USB2 on rear and front panel connectors
  • USB3
  • Integrated SATA
  • CPU Temp sensors (tested PSensor on GNU/Linux)
  • LPC TPM on TPM-header (tested tpm-tools with TPM 1.2 Infineon SLB9635TT12)
  • Native raminit
  • Integrated graphics with libgfxinit (both analog and digital output from DVI-I)
  • Nvidia Quadro 600 in all PCIe-16x slots
  • Compex WLM200NX (Qualcomm Atheros AR9220) in PCI slot
  • Onboard IEEE1394 controller under PCI bus
  • Debug output from serial port

Untested

  • EHCI debugging
  • S/PDIF audio
  • PS/2 mouse
  • LPT port

Technology

+------------------+--------------------------------------------------+
| Northbridge      | :doc:`../../northbridge/intel/sandybridge/index` |
+------------------+--------------------------------------------------+
| Southbridge      | bd82x6x                                          |
+------------------+--------------------------------------------------+
| CPU              | model_206ax                                      |
+------------------+--------------------------------------------------+
| Super I/O        | Nuvoton NCT6776F                                 |
+------------------+--------------------------------------------------+
| EC               | None                                             |
+------------------+--------------------------------------------------+
| Coprocessor      | Intel Management Engine                          |
+------------------+--------------------------------------------------+

Extra resources