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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>
This commit is contained in:
David Daney 2011-04-27 10:54:22 -07:00 committed by Greg Kroah-Hartman
parent bf54171521
commit 14be249c96
1 changed files with 3 additions and 0 deletions
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3
drivers/usb/host/octeon2-common.c
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@ -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);
}