tree 0e8ab8910e41db60517dbb1fe71318a9aee7334a
parent 52b4b2da757cff199ceae45e041f0bc1c3199689
author tang yuantian <Yuantian.Tang@freescale.com> 1443081122 +0800
committer York Sun <yorksun@freescale.com> 1446221988 -0700

arm: ls1021atwr: optimize the deep sleep latency

It will take more than 1s when wake up from deep sleep. Most of the
time is spent on outputing information. This patch reduced the deep
sleep latency by:
1. avoid outputing system informaton
2. remove flush cache after DDR restore
3. skip reloading second stage uboot binary when SD boot

Signed-off-by: Tang Yuantian <Yuantian.Tang@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>