Author: mmel
Date: Tue Oct 4 09:14:48 2016
New Revision: 306666
URL: https://svnweb.freebsd.org/changeset/base/306666
Log:
TEGRA: Fix PCIe link timeout.
MFC after: 2 weeks
Modified:
head/sys/arm/nvidia/tegra_pcie.c
Modified: head/sys/arm/nvidia/tegra_pcie.c
==============================================================================
--- head/sys/arm/nvidia/tegra_pcie.c Tue Oct 4 08:09:25 2016
(r306665)
+++ head/sys/arm/nvidia/tegra_pcie.c Tue Oct 4 09:14:48 2016
(r306666)
@@ -201,7 +201,8 @@ __FBSDID("$FreeBSD$");
#define RP_LINK_CONTROL_STATUS_DL_LINK_ACTIVE 0x20000000
#define RP_LINK_CONTROL_STATUS_LINKSTAT_MASK 0x3fff0000
-#define TEGRA_PCIE_LINKUP_TIMEOUT 200
+/* Wait 50 ms (per port) for link. */
+#define TEGRA_PCIE_LINKUP_TIMEOUT 50000
#define TEGRA_PCIB_MSI_ENABLE
@@ -1160,6 +1161,7 @@ tegra_pcib_wait_for_link(struct tegra_pc
RP_VEND_XP, 4);
if (reg & RP_VEND_XP_DL_UP)
break;
+ DELAY(1);
}
if (i <= 0)
@@ -1171,6 +1173,7 @@ tegra_pcib_wait_for_link(struct tegra_pc
if (reg & RP_LINK_CONTROL_STATUS_DL_LINK_ACTIVE)
break;
+ DELAY(1);
}
if (i <= 0)
return (ETIMEDOUT);
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