here the same with revision 3 of the controller

03:00.0 SATA controller: JMicron Technologies, Inc. JMicron 20360/20363 AHCI Controller (rev 03)
03:00.1 IDE interface: JMicron Technologies, Inc. JMicron 20360/20363 AHCI Controller (rev 03)

[ 7471.163585] ata2: SATA link down (SStatus 0 SControl 310)                                                               
[ 7471.163596] ata2: EH complete                                                                                           
[ 7471.278287] ata2: exception Emask 0x10 SAct 0x0 SErr 0x4040000 action 0xe frozen                                        
[ 7471.278294] ata2: irq_stat 0x00000040, connection status changed                                                        
[ 7471.278298] ata2: SError: { CommWake DevExch }                                                                          
[ 7471.278304] ata2: limiting SATA link speed to 1.5 Gbps                                                                  
[ 7471.278307] ata2: hard resetting link                                                                                   
[ 7472.476783] ata2: SATA link down (SStatus 0 SControl 310)                                                               
[ 7472.476795] ata2: EH complete                                                                                           
[ 7472.619770] ata2: exception Emask 0x10 SAct 0x0 SErr 0x4060000 action 0xe frozen                                        
[ 7472.619779] ata2: irq_stat 0x00000040, connection status changed                                                        
[ 7472.619784] ata2: SError: { PHYInt CommWake DevExch }                                                                   
[ 7472.619793] ata2: limiting SATA link speed to 1.5 Gbps                                                                  
[ 7472.619796] ata2: hard resetting link                                                                                   
[ 7474.873720] ata2: COMRESET failed (errno=-32)                                                                           
[ 7474.873735] ata2: reset failed (errno=-32), retrying in 8 secs                                                          
[ 7482.593838] ata2: hard resetting link                                                                                   
[ 7485.008447] ata2: COMRESET failed (errno=-32)                                                                           
[ 7485.008459] ata2: reset failed (errno=-32), retrying in 8 secs                                                          
[ 7492.568981] ata2: hard resetting link                                                                                   
[ 7494.024840] ata2: SATA link down (SStatus 0 SControl 310)                                                               
[ 7494.024851] ata2: EH complete                                                                                           
[ 7494.083135] ata2: exception Emask 0x10 SAct 0x0 SErr 0x4060000 action 0xe frozen                                        
[ 7494.083143] ata2: irq_stat 0x00000040, connection status changed                                                        
[ 7494.083148] ata2: SError: { PHYInt CommWake DevExch }                                                                   
[ 7494.083157] ata2: limiting SATA link speed to 1.5 Gbps                                                                  
[ 7494.083160] ata2: hard resetting link                                                                                   
[ 7495.824273] ata2: SATA link down (SStatus 0 SControl 310)                                                               
[ 7495.824284] ata2: EH complete
[ 7495.873110] ata2: exception Emask 0x10 SAct 0x0 SErr 0x4060000 action 0xe frozen
[ 7495.873120] ata2: irq_stat 0x00000040, connection status changed
[ 7495.873125] ata2: SError: { PHYInt CommWake DevExch }
[ 7495.873134] ata2: limiting SATA link speed to 1.5 Gbps
[ 7495.873138] ata2: hard resetting link
[ 7497.328984] ata2: SATA link down (SStatus 0 SControl 310)
[ 7497.328996] ata2: EH complete
[ 7497.339254] ata2: exception Emask 0x10 SAct 0x0 SErr 0x4040000 action 0xe frozen
[ 7497.339262] ata2: irq_stat 0x00000040, connection status changed
[ 7497.339267] ata2: SError: { CommWake DevExch }
[ 7497.339275] ata2: limiting SATA link speed to 1.5 Gbps
[ 7497.339279] ata2: hard resetting link
[ 7499.814386] ata2: COMRESET failed (errno=-32)
[ 7499.814399] ata2: reset failed (errno=-32), retrying in 8 secs
[ 7507.311364] ata2: hard resetting link
[ 7509.821998] ata2: COMRESET failed (errno=-32)
[ 7509.822009] ata2: reset failed (errno=-32), retrying in 8 secs
[ 7517.287056] ata2: hard resetting link
[ 7519.540100] ata2: COMRESET failed (errno=-32)
[ 7519.540114] ata2: reset failed (errno=-32), retrying in 33 secs
[ 7552.197247] ata2: hard resetting link
[ 7554.452014] ata2: COMRESET failed (errno=-32)
[ 7554.452026] ata2: reset failed, giving up
[ 7554.452032] ata2: EH complete

this is with kernel.org 2.6.32 kernel