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libpayload: ahci: Increase timeout for signature reading 

We can't read the drives signature before it's ready, i.e. spun up.
So set the timeout to the standard 30s. Also put a notice on the
console, so the user knows why the signature reading failed.

Change-Id: I2148258f9b0eb950b71544dafd95776ae70afac8
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: http://review.coreboot.org/3493
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Dave Frodin <dave.frodin@se-eng.com>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
This commit is contained in:
Nico Huber 2013-06-17 17:42:35 +02:00 committed by Ronald G. Minnich
parent cacc58a874
commit 354066e117
1 changed files with 10 additions and 2 deletions
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12
payloads/libpayload/drivers/storage/ahci.c
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@ -406,11 +406,19 @@ static int ahci_dev_init(hba_ctrl_t *const ctrl,
dev->cmdtable = cmdtable;
dev->rcvd_fis = rcvd_fis;
/* Wait for D2H Register FIS with device' signature. */
int timeout = 200; /* Time out after 200 * 10ms == 2s. */
/*
* Wait for D2H Register FIS with device' signature.
* The drive has to spin up here, so wait up to 30s.
*/
const int timeout_s = 30; /* Time out after 30s. */
int timeout = timeout_s * 100;
while ((port->taskfile_data & HBA_PxTFD_BSY) && timeout--)
mdelay(10);
if (port->taskfile_data & HBA_PxTFD_BSY)
printf("ahci: Timed out after %d seconds "
"of waiting for device to spin up.\n", timeout_s);
/* Initialize device or fall through to clean up. */
switch (port->signature) {
case HBA_PxSIG_ATA: