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another tweak to docs/maintain/ 

this doesn't actually add missing information, but does make
existing information clearer.

it's always the case that when i'm running a release build, i
immediately notice everything wrong with it.

i'm not stopping the build!

Signed-off-by: Leah Rowe <info@minifree.org>
master
Leah Rowe 2024-12-06 00:11:31 +00:00
parent 942512a16c
commit 29762494bc
1 changed files with 22 additions and 0 deletions
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22
site/docs/maintain/index.md
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@ -718,6 +718,28 @@ as:
* `xtree="default"` (example entry)
* `tree_depend="default"` (example entry)
* `grubtree="nvme" (example entry)`
* `payload_uboot_i386="y"` (example entry - 32 bit U-Boot)
* `payload_uboot_amd64="y"` (example entry - 64 bit U-Boot)
Please also check the `build_depend` variable
in `config/data/coreboot/mkhelper.cfg` - and compare to what trees are used
for payloads in the given target. If your board's `target.cfg` requires trees
and projects other than that specified in `mkhelper.cfg`, you must replace
the entire `build_depend` string. For example, if your board requires GRUB with
xHCI patches, with SeaBIOS and with U-Boot AMD64, and you also want memtest86plus,
you would therefore set the string as follows:
```
build_depend="grub/xhci seabios/default u-boot/amd64coreboot memtest86plus"
```
In the above example, you would also set `grubtree="xhci"`,
but please note that there is only one SeaBIOS tree so `/default` is implied,
but must still be in the `build_depend` variable. Multiple U-Boot trees exist,
but for x86 32-bit you would only specify `i386coreboot` and for 64-bit you
would only specify `amd64coreboot` and for ARM64 you say `default` - so you
do not need to specify a `seabiostree` or `uboottree` variable, and these are
not handled, because lbmk simply assumes use of the aforementioned tree names.
The `tree` value refers to `config/coreboot/TREE`; in other words, a given
target could specify a name other than its own as the tree; it would then