On Sat, Apr 23, 2011 at 8:58 AM, Jian Peng <jipeng2005@xxxxxxxxx> wrote: > At the end of section 10.1 of AHCI spec (rev 1.3), it states > > Software shall not set PxCMD.ST to 1 until it is determined that > a functoinal device is present on the port as determined by > PxTFD.STS.BSY=0, PxTFD.STS.DRQ=0 and PxSSTS.DET=3h > > Even though most AHCI host controller works without this check, > specific controller will fail under this condition. > > Signed-off-by: Jian Peng <jipeng2005@xxxxxxxxx> Acked-by: Tejun Heo <tj@xxxxxxxxxx> Thanks. -- tejun -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
