New patch to review for coreboot: b4e2561 libpayload: ahci: Increase timeout for signature reading

[Nico Huber]

Nico Huber ([e-mail]) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/3493

-gerrit

commit b4e2561f6f678f7804208423a32beb62d677af8c
Author: Nico Huber 
Date:   Mon Jun 17 17:42:35 2013 +0200

libpayload: ahci: Increase timeout for signature reading

I've found the first SATA disk that takes ages (> 4s) to identify itself.
    Let's set the timeout to 5s. Also put a notice on the console, so the
    user knows why the signature reading failed.

Change-Id: I2148258f9b0eb950b71544dafd95776ae70afac8
    Signed-off-by: Nico Huber 
---
 payloads/libpayload/drivers/storage/ahci.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/payloads/libpayload/drivers/storage/ahci.c b/payloads/libpayload/drivers/storage/ahci.c
index 72acd0b..deecd2b 100644
--- a/payloads/libpayload/drivers/storage/ahci.c
+++ b/payloads/libpayload/drivers/storage/ahci.c
@@ -396,10 +396,13 @@ static int ahci_dev_init(hba_ctrl_t *const ctrl,
    dev->rcvd_fis = rcvd_fis;

/* Wait for D2H Register FIS with device' signature. */
-	int timeout = 200; /* Time out after 200 * 10ms == 2s. */
+	int timeout = 500; /* Time out after 500 * 10ms == 5s. */
    while ((port->taskfile_data & HBA_PxTFD_BSY) && timeout--)
    	mdelay(10);

+	if (port->taskfile_data & HBA_PxTFD_BSY)
+		printf("ahci: Timed out waiting for device' signature.\n");
+
    /* Initialize device or fall through to clean up. */
    switch (port->signature) {
    case HBA_PxSIG_ATA: