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| author | Simon Glass <sjg@chromium.org> | 2016-07-17 01:22:41 -0600 |
|---|---|---|
| committer | Bin Meng <bmeng.cn@gmail.com> | 2016-08-16 11:44:09 +0800 |
| commit | dc396210d9f5db485336513a824c5721db9f3ff8 (patch) | |
| tree | 8e13047fbfbc1d342ac70d4be9005863967aa278 /doc/uImage.FIT/kernel.its | |
| parent | 5d98c5ec8e4faeac39befce97498bb0631fa7f3a (diff) | |
| download | u-boot-dc396210d9f5db485336513a824c5721db9f3ff8.zip u-boot-dc396210d9f5db485336513a824c5721db9f3ff8.tar.gz u-boot-dc396210d9f5db485336513a824c5721db9f3ff8.tar.bz2 | |
x86: Mention how to boot a 64-bit kernel from U-Boot
The README indicates that this is not supported, but this is no-longer true.
Update the text to indicate this and describe the FIT changes required.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Diffstat (limited to 'doc/uImage.FIT/kernel.its')
| -rw-r--r-- | doc/uImage.FIT/kernel.its | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/doc/uImage.FIT/kernel.its b/doc/uImage.FIT/kernel.its index e668c3f..0aaf47e 100644 --- a/doc/uImage.FIT/kernel.its +++ b/doc/uImage.FIT/kernel.its @@ -85,3 +85,7 @@ For x86 a setup node is also required: see x86-fit-boot.txt. }; }; }; + +Note: the above assumes a 32-bit kernel. To directly boot a 64-bit kernel, +change both arch values to "x86_64". U-Boot will then change to 64-bit mode +before booting the kernel (see boot_linux_kernel()). |