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Diffstat (limited to 'doc/develop')
| -rw-r--r-- | doc/develop/distro.rst | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/doc/develop/distro.rst b/doc/develop/distro.rst index 8016acad098..9e715b23ebb 100644 --- a/doc/develop/distro.rst +++ b/doc/develop/distro.rst @@ -81,6 +81,12 @@ as specified at `Boot Loader Specification`_: * Does not document the fdtdir option, which automatically selects the DTB to pass to the kernel. +* If no fdt/fdtdir is provided, the U-Boot will pass its own currently used + device tree. + +* If ``-`` is passed as fdt argument and ``CONFIG_SUPPORT_PASSING_ATAGS`` is + enabled, then no device tree will be used (legacy booting / pre-dtb kernel). + See also doc/README.pxe under 'pxe file format'. One example extlinux.conf generated by the Fedora installer is:: |