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doc: Update docs for device tree in SPL, TPL

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Make a few small updates to indicate that device tree can be used in SPL
and TPL.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass
2018-10-01 12:22:17 -06:00
parent 343864afd7
commit a15a7aa47b
2 changed files with 12 additions and 1 deletions
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3
doc/driver-model/README.txt
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@@ -832,7 +832,8 @@ Pre-Relocation Support
For pre-relocation we simply call the driver model init function. Only
drivers marked with DM_FLAG_PRE_RELOC or the device tree
'u-boot,dm-pre-reloc' flag are initialised prior to relocation. This helps
to reduce the driver model overhead.
to reduce the driver model overhead. This flag applies to SPL and TPL as
well, if device tree is enabled there.
It is possible to limit this to specific relocation steps, by using
the more specialized 'u-boot,dm-spl' and 'u-boot,dm-tpl' flags