Staging: olpc_dcon: replace some magic numbers

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This patch replace some magic numbers. I believe it makes
the driver more readable.

The magic number 0x26 is the XO system embedded controller
(EC) command 'DCON power enable/disable'.

Number 0x41, and 0x42 are special memory controller settings
register.  The 0x41 initialize bit sequence 0x101 means:
enable memory power down function and special SDRAM clock
delay for synchronize SDRAM output and clock signal.

The 0x42 initialize squence 0x101 is wrong.  According to
the specification Bit 8 is reserved, thus not in use.
I removed it.

Signed-off-by: Jens Frederich <jfrederich@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Jens Frederich 2013-08-15 21:34:55 +02:00 • committed by Greg Kroah-Hartman

parent 01f865ba4a

commit 98d4f93c79

3 changed files with 26 additions and 15 deletions

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include/linux/olpc-ec.h

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