Documentation: Add cavium SoC and mainboard

* Add documentation for CN81XX SoC
* Add documentation for CN81XX EVB SFF mainboard
* Add documentation for BDK
* Add documentation for BOOTROM and BOOTBLOCK behaviour
* Alphabetically sort vendors

Change-Id: Ibfcd42788e31f684baed658dc3c4dfe1b8e4f354
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/27150
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: David Hendricks <david.hendricks@gmail.com>
Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
This commit is contained in:
Patrick Rudolph
2018-06-18 13:23:27 +02:00
committed by Philipp Deppenwiese
parent a45e9f8106
commit 8c986ab263
12 changed files with 275 additions and 2 deletions

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# Cavium's BDK
## BDK
A part of Cavium's BDK can be found in '''src/vendorcode/cavium/bdk'''.
It does the **DRAM init** in romstage and the **PCIe**, **QLM**, **SLI**,
**PHY**, **BGX**, **SATA** init in ramstage.
## Devicetree
The BDK does use it's own devicetree, as coreboot's devicetree isn't
compatible. The devicetree stores key-value pairs (see **bdk-devicetree.h**
for implementation details), where the key and the value are stored as strings.
The key-value pairs must be advertised in romstage and ramstage using the
'''bdk_config_set_fdt()''' method.
The tool '''util/cavium/devicetree_convert.py''' can be used to convert a
devicetree to a key-value array.
## Modifications
* The BDK has been modified to compile under coreboot's toolchain.
* Removed FDT devicetree support.
* Dropped files that aren't required for SoC bringup
* Added Kconfig values for verbose console output
## Debugging
You can enable verbose console output in *menuconfig*:
Go to **Chipset**, **BDK** and enable one or multiple stages.

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# Cavium vendorcode-specific documentation
This section contains documentation about coreboot on Cavium specific
vendorcode.
## Sections
- [BDK](bdk.md)

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# Vendorcode-specific documentation
This section contains documentation about coreboot on specific vendorcode.
## Vendor
- [Cavium](cavium/index.md)