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Documentation: Add "earlycon=sbi" to the admin guide

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This argument is supported on RISC-V systems and widely used, but was
not documented here.

Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This commit is contained in:
Palmer Dabbelt 2019-09-13 13:38:43 -07:00 committed by Jonathan Corbet
parent 19ad5f79f9
commit 82f12ab311
1 changed files with 4 additions and 0 deletions
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4
Documentation/admin-guide/kernel-parameters.txt
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@ -1044,6 +1044,10 @@
specified address. The serial port must already be
setup and configured. Options are not yet supported.
sbi
Use RISC-V SBI (Supervisor Binary Interface) for early
console.
smh Use ARM semihosting calls for early console.
s3c2410,<addr>