ahci: wait longer for link.
I have observed timeouts on a cubietruck.
The increase to 40ms is completely arbitrary and Works For Me(tm). I
couldn't find a good reference for how long you are supposed to wait,
although googling around it seems like tens of ms rather than single
digits is more common. I don't think there is any harm in waiting a bit
longer.
Signed-off-by: Ian Campbell <ijc@hellion.org.uk>
diff --git a/drivers/block/ahci.c b/drivers/block/ahci.c
index 22621bf..a409f63 100644
--- a/drivers/block/ahci.c
+++ b/drivers/block/ahci.c
@@ -41,7 +41,7 @@
#define WAIT_MS_SPINUP 20000
#define WAIT_MS_DATAIO 5000
#define WAIT_MS_FLUSH 5000
-#define WAIT_MS_LINKUP 4
+#define WAIT_MS_LINKUP 40
static inline u32 ahci_port_base(u32 base, u32 port)
{