4e43abf9c1
- Move configs for PCIe ports not present on z220_sff_workstation from the devicetree.cb of base board to the overridetree.cb of z220_cmt_workstation. - Add a note for ME/AMT Flash Override jumper, for it is hard to flash from OEM firmware either internally or externally without closing this jumper. - Add a side note for similar HP Compaq Elite 8300 SFF. Signed-off-by: Bill XIE <persmule@hardenedlinux.org> Change-Id: I35d8b97f52a83910a61c12b1f7367ee7a19a9ad7 Reviewed-on: https://review.coreboot.org/c/coreboot/+/65703 Reviewed-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-by: Paul Menzel <paulepanter@mailbox.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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HP Z220 SFF Workstation
This page describes how to run coreboot on the HP Z220 SFF Workstation desktop from HP.
TODO
The following things are still missing from this coreboot port:
- Extended HWM reporting
- Advanced LED control
- Advanced power configuration in S3
Flashing coreboot
+---------------------+-------------+
| Type | Value |
+=====================+=============+
| Socketed flash | no |
+---------------------+-------------+
| Model | N25Q128..3E |
+---------------------+-------------+
| Size | 16 MiB |
+---------------------+-------------+
| In circuit flashing | yes |
+---------------------+-------------+
| Package | SOIC-16 |
+---------------------+-------------+
| Write protection | No |
+---------------------+-------------+
| Dual BIOS feature | No |
+---------------------+-------------+
| Internal flashing | yes |
+---------------------+-------------+
Internal programming
The SPI flash can be accessed using flashrom.
External programming
External programming with an SPI adapter and flashrom does work, but it powers the whole southbridge complex. You need to supply enough current through the programming adapter.
If you want to use a SOIC pomona test clip, you have to cut the 2nd DRAM DIMM holder, as otherwise there's not enough space near the flash.
In both case, if ME has not been completely disabled, ME/AMT Flash Override jumper had better be temporary closed for flashing to disable the locking of regions, and prevent ME to run and interfere.
Side note
The mainboard of HP Compaq Elite 8300 SFF is very similar to the one of Z220 SFF, except that Compaq Elite 8300 uses Q77 instead of C216 for its PCH, and their boot firmwares are even interchangeable, so should do coreboot images built for them.
Technology
+------------------+--------------------------------------------------+
| Northbridge | :doc:`../../northbridge/intel/sandybridge/index` |
+------------------+--------------------------------------------------+
| Southbridge | bd82x6x |
+------------------+--------------------------------------------------+
| CPU | model_206ax |
+------------------+--------------------------------------------------+
| SuperIO | :doc:`../../superio/nuvoton/npcd378` |
+------------------+--------------------------------------------------+
| EC | |
+------------------+--------------------------------------------------+
| Coprocessor | Intel ME |
+------------------+--------------------------------------------------+