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| author | Marcin Nowakowski <marcin.nowakowski@fungible.com> | 2019-05-13 14:32:43 +0200 |
|---|---|---|
| committer | Paul Burton <paul.burton@mips.com> | 2019-05-13 12:02:47 -0700 |
| commit | 67eebf7213046e65d8fb1f37f5fd10d5fb71e098 (patch) | |
| tree | 158ae7ec45da3912e7ccf0927792278e6d88f756 /arch/mips/sgi-ip22 | |
| parent | e6308b6d35ea706c23a589a8c709fa444ff13e17 (diff) | |
| download | lwn-67eebf7213046e65d8fb1f37f5fd10d5fb71e098.tar.gz lwn-67eebf7213046e65d8fb1f37f5fd10d5fb71e098.zip | |
generic: fix appended dtb support
Appended DTB support is mostly intended to be used on legacy systems,
but it is a valid feature that can be enabled for generic platform,
which currently doesn't support it - if selected, the appended DTB will
be ignored by the platform startup code.
During kernel startup, the appended DTB's location is stored in
fw_passed_dtb if the init code finds what appears to be a valid DTB.
Otherwise (if a0 == -2), a1 is stored in fw_passed_dtb, so either way it
will always point to either a user-passed DTB or built-in DTB.
Signed-off-by: Marcin Nowakowski <marcin.nowakowski@fungible.com>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
Diffstat (limited to 'arch/mips/sgi-ip22')
0 files changed, 0 insertions, 0 deletions