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authorDavid Daney <ddaney@caviumnetworks.com>2011-04-27 10:54:22 -0700
committerGreg Kroah-Hartman <gregkh@suse.de>2011-05-03 10:09:32 -0700
commit14be249c969817e05c4f1ce042906e1c5be68873 (patch)
tree1045874eafc11e3ae74b993f14359249229e9552 /drivers/usb/host
parentbf5417152154038bbae429e2357731b1dad03328 (diff)
usb: Configure octeon2 glue logic for proper uSOF cycle period.
The reset value of the uSOF cycle period is incorrect. Set it to 60,000 bits. Without this, several commercial USB flash memory devices and hubs fail to work properly. Signed-off-by: David Daney <ddaney@caviumnetworks.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/host')
-rw-r--r--drivers/usb/host/octeon2-common.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/usb/host/octeon2-common.c b/drivers/usb/host/octeon2-common.c
index aef6364d631..d9df423f3d1 100644
--- a/drivers/usb/host/octeon2-common.c
+++ b/drivers/usb/host/octeon2-common.c
@@ -183,6 +183,9 @@ end_clock:
cvmx_write_csr(CVMX_UCTLX_UPHY_PORTX_CTL_STATUS(i, 0),
port_ctl_status.u64);
}
+
+ /* Set uSOF cycle period to 60,000 bits. */
+ cvmx_write_csr(CVMX_UCTLX_EHCI_FLA(0), 0x20ull);
exit:
mutex_unlock(&octeon2_usb_clocks_mutex);
}