AHCI: Increase link timeout to 200ms

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>
Acked-by: Hans de Goede <hdegoede@redhat.com>

diff --git a/drivers/block/ahci.c b/drivers/block/ahci.c
index c8f65739e9778a1578dc7aa17eb3448e9c749a46..4df804671a8b513c6125ac6919384df6cd8170c4 100644 (file)
--- 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)
 {