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authorTejun Heo <htejun@gmail.com>2006-11-02 12:17:23 +0900
committerJeff Garzik <jeff@garzik.org>2006-12-01 22:41:31 -0500
commit98fa4b60c673526fdd478d9719e41cd9e2b84986 (patch)
tree696cb1f0d19bbda6dc9030eb11e4b2754472dfaa /net/sunrpc
parentada406c8246b0792afe4d7f8ae7606093052de87 (diff)
[PATCH] ahci: preserve PORTS_IMPL over host resets
Instead of writing 0xf blindly, preserve the content of write-once PORTS_IMPL register over host resets. This patch is taken from Jeff Garzik's AHCI init update patch. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
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