[ARM] pxa: add preliminary suspend/resume code for pxa3xx
authoreric miao <eric.miao@marvell.com>
Mon, 28 Jan 2008 23:00:02 +0000 (23:00 +0000)
committerRussell King <rmk+kernel@arm.linux.org.uk>
Mon, 4 Feb 2008 13:17:33 +0000 (13:17 +0000)
1. clear RDH bit after resuming back from D3, otherwise, the multi function
   pins will retain the low power state

2. save/restore essential system registers

Signed-off-by: eric miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

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