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authorChris Metcalf <cmetcalf@tilera.com>2013-08-01 11:36:42 -0400
committerDavid S. Miller <davem@davemloft.net>2013-08-01 14:35:51 -0700
commit9ab5ec59c8a9cc0e4b94252b48200b6023c716aa (patch)
treefa9084e9bbb9eaf85689723d1b6e2c957f095a57 /arch/tile/gxio
parent84e181ba3607a4e1175d929c346c72f9bfa1ab02 (diff)
downloadop-kernel-dev-9ab5ec59c8a9cc0e4b94252b48200b6023c716aa.zip
op-kernel-dev-9ab5ec59c8a9cc0e4b94252b48200b6023c716aa.tar.gz
tile: support PTP using the tilegx mPIPE (IEEE 1588)
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com> Acked-by: Richard Cochran <richardcochran@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/tile/gxio')
-rw-r--r--arch/tile/gxio/iorpc_mpipe.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/tile/gxio/iorpc_mpipe.c b/arch/tile/gxio/iorpc_mpipe.c
index c2fb1516..4f8f3d6 100644
--- a/arch/tile/gxio/iorpc_mpipe.c
+++ b/arch/tile/gxio/iorpc_mpipe.c
@@ -475,6 +475,25 @@ int gxio_mpipe_adjust_timestamp_aux(gxio_mpipe_context_t * context,
EXPORT_SYMBOL(gxio_mpipe_adjust_timestamp_aux);
+struct adjust_timestamp_freq_param {
+ int32_t ppb;
+};
+
+int gxio_mpipe_adjust_timestamp_freq(gxio_mpipe_context_t * context,
+ int32_t ppb)
+{
+ struct adjust_timestamp_freq_param temp;
+ struct adjust_timestamp_freq_param *params = &temp;
+
+ params->ppb = ppb;
+
+ return hv_dev_pwrite(context->fd, 0, (HV_VirtAddr) params,
+ sizeof(*params),
+ GXIO_MPIPE_OP_ADJUST_TIMESTAMP_FREQ);
+}
+
+EXPORT_SYMBOL(gxio_mpipe_adjust_timestamp_freq);
+
struct config_edma_ring_blks_param {
unsigned int ering;
unsigned int max_blks;
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