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Commit 14be249c authored by David Daney's avatar David Daney Committed by Greg Kroah-Hartman
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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: default avatarDavid Daney <ddaney@caviumnetworks.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent bf541715

drivers/usb/host/octeon2-common.c

+3 −0
Original line number Diff line number Diff line
@@ -183,6 +183,9 @@ void octeon2_usb_clocks_start(void) 
		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);

}