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authorManfred Rudigier <Manfred.Rudigier@omicron.at>2010-06-11 01:49:05 +0000
committerDavid S. Miller <davem@davemloft.net>2010-06-16 14:40:02 -0700
commit97553f7f3e7a0305d017df9cc6e9589f64878437 (patch)
tree15e2db21159b73d88020b9be834a7243ab7c433f /net
parentd8d326dc7ae6bec2a999d674c5babb6bf490587a (diff)
gianfar: Fix setup of RX time stamping
Previously the RCTRL_TS_ENABLE bit was set unconditionally. However, if the RCTRL_TS_ENABLE is set without TMR_CTRL[TE], the driver does not work properly on some boards (Anton had problems with the MPC8313ERDB and MPC8568EMDS). With this patch the bit will only be set if requested from user space with the SIOCSHWTSTAMP ioctl command, meaning that time stamping is disabled during normal operation. Users who are not interested in time stamps will not experience problems with buggy CPU revisions or performance drops any more. The setting of TMR_CTRL[TE] is still up to the user. This is considered safe because users wanting HW timestamps must initialize the eTSEC clock first anyway, e.g. with the recently submitted PTP clock driver. Signed-off-by: Manfred Rudigier <manfred.rudigier@omicron.at> Reviewed-by: Anton Vorontsov <cbouatmailru@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
0 files changed, 0 insertions, 0 deletions