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authorBenoît Thébaudeau <benoit.thebaudeau@advansee.com>2012-11-05 10:07:04 +0000
committerStefano Babic <sbabic@denx.de>2012-11-19 08:56:27 +0100
commit39e8576164c3bef9d6cb9ad4567c09fc6a87b5fd (patch)
treecf37dc6d9cc7e2761d61c04d7ba98e1f2af49e38 /doc
parentfa88ddb75f0abeee123dd1547f4e32ec3155d31f (diff)
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mx5: Mark lowlevel_init board-specific code
The mx5 lowlevel_init.S contains board-specific code based on the reference design. Let's keep it since it avoids creating new lowlevel_init files and it may be used by many boards. But add a config to make it optional in order not to cause issues on boards not following this part of the reference design. Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com> Cc: Stefano Babic <sbabic@denx.de> Cc: Matt Sealey <matt@genesi-usa.com> Acked-by: Stefano Babic <sbabic@denx.de>
Diffstat (limited to 'doc')
-rw-r--r--doc/README.imx55
1 files changed, 5 insertions, 0 deletions
diff --git a/doc/README.imx5 b/doc/README.imx5
index f7eab7d..e08941e 100644
--- a/doc/README.imx5
+++ b/doc/README.imx5
@@ -15,3 +15,8 @@ i.MX5x SoCs.
mode), which causes the effect of this failure to be much lower (in terms
of frequency deviation), avoiding system failure, or at least decreasing
the likelihood of system failure.
+
+1.2 CONFIG_SYS_MAIN_PWR_ON: Trigger MAIN_PWR_ON upon startup.
+ This option should be enabled for boards having a SYS_ON_OFF_CTL signal
+ connected to GPIO1[23] and triggering the MAIN_PWR_ON signal like in the
+ reference designs.