From: Ahmad Fatoum <a.fatoum@pengutronix.de>
To: barebox@lists.infradead.org
Subject: [PATCH] Documentation: user: suggest U-Boot's bootm, not go
Date: Mon, 17 Jun 2019 16:18:46 +0200 [thread overview]
Message-ID: <20190617141846.25638-1-a.fatoum@pengutronix.de> (raw)
Unlike barebox, U-Boot's go command doesn't have any provisions
for cache handling and as such, bootstrapping barebox via go can
cause stale data to be erroneously executed as instructions.
The official documentation[1] suggests use of bootm instead, which
does the necessary flushing and invalidation. Update our documentation
accordingly.
[1]: http://www.denx.de/wiki/view/DULG/UBootStandalone#Section_5.12.3.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
---
Documentation/user/barebox.rst | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/Documentation/user/barebox.rst b/Documentation/user/barebox.rst
index 1927fe4efcc5..d82163a88634 100644
--- a/Documentation/user/barebox.rst
+++ b/Documentation/user/barebox.rst
@@ -206,12 +206,12 @@ board documentation for initial bringup.
barebox binaries are, where possible, designed to be startable second stage from another
bootloader. For example, if you have U-Boot running on your board, you can start barebox
-with U-Boot's 'go' command:
+with U-Boot's ``bootm`` command:
.. code-block:: console
U-Boot: tftp $load_addr barebox.bin
- U-Boot: go $load_addr
+ U-Boot: bootm $load_addr
With barebox already running on your board, this can be used to chainload
another barebox. For instance, if you mounted a TFTP server to ``/mnt/tftp``
--
2.20.1
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next reply other threads:[~2019-06-17 14:18 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-17 14:18 Ahmad Fatoum [this message]
2019-06-18 8:01 ` Sascha Hauer
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