In 73545f75b66d "ahci: wait longer for link" I increased the timeout to 40ms based on the observed behaviour of a WD disk on a Cubietruck. Since then Karsten Merker and myself have both observed timeouts with HGST disks (Karsten on Cubietruck, me on Cubieboard2). Increasing the timeout to ~175ms fixes this, so go to 200ms for a bit of headroom.
Signed-off-by: Ian Campbell ijc@hellion.org.uk Cc: Karsten Merker merker@debian.org --- drivers/block/ahci.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/block/ahci.c b/drivers/block/ahci.c index c8f6573..4df8046 100644 --- a/drivers/block/ahci.c +++ b/drivers/block/ahci.c @@ -41,7 +41,7 @@ u16 *ataid[AHCI_MAX_PORTS]; #define WAIT_MS_SPINUP 20000 #define WAIT_MS_DATAIO 5000 #define WAIT_MS_FLUSH 5000 -#define WAIT_MS_LINKUP 40 +#define WAIT_MS_LINKUP 200
static inline u32 ahci_port_base(u32 base, u32 port) {