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