If the target power is connected through a gpio, then give the target some time to power up before continuing with ahci / sata probing, this avoids link timeouts, without penalizing other boards where there is no target power gpio.

Why 500 ms ? I started with 200, that was not enough, then I went to 500 which worked, lowering it to 350 broke things again, so 500 seems the minimum my vertex2 needs to be ready to get probed.

Signed-off-by: Hans de Goede hdegoede@redhat.com --- board/sunxi/ahci.c | 2 ++ 1 file changed, 2 insertions(+)

diff --git a/board/sunxi/ahci.c b/board/sunxi/ahci.c index 5e12328..b7f0dda 100644 --- a/board/sunxi/ahci.c +++ b/board/sunxi/ahci.c @@ -76,6 +76,8 @@ void scsi_init(void) #ifdef CONFIG_SATAPWR gpio_request(CONFIG_SATAPWR, "satapwr"); gpio_direction_output(CONFIG_SATAPWR, 1); + /* Give attached sata device time to power-up to avoid link timeouts */ + mdelay(500); #endif

if (sunxi_ahci_phy_init(SUNXI_SATA_BASE) < 0)