| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame^] | 1 | From c96c65930fb5a348d96b88f4edeea1ddf8229c28 Mon Sep 17 00:00:00 2001 |
| 2 | From: Yangbo Lu <yangbo.lu@nxp.com> |
| 3 | Date: Thu, 1 Nov 2018 15:34:17 +0800 |
| 4 | Subject: [PATCH] sdk_dpaa: fix hardware timestamp value |
| 5 | |
| 6 | The hardware timestamp value got didn't need to be multiplied |
| 7 | by nominal frequency since ptp_qoriq driver initialized the |
| 8 | counter to add clock period, not the clock tick. |
| 9 | |
| 10 | Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com> |
| 11 | --- |
| 12 | drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_common.c | 7 ++----- |
| 13 | 1 file changed, 2 insertions(+), 5 deletions(-) |
| 14 | |
| 15 | --- a/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_common.c |
| 16 | +++ b/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_common.c |
| 17 | @@ -306,7 +306,7 @@ EXPORT_SYMBOL(dpa_fix_features); |
| 18 | u64 dpa_get_timestamp_ns(const struct dpa_priv_s *priv, enum port_type rx_tx, |
| 19 | const void *data) |
| 20 | { |
| 21 | - u64 *ts, ns; |
| 22 | + u64 *ts; |
| 23 | |
| 24 | ts = fm_port_get_buffer_time_stamp(priv->mac_dev->port_dev[rx_tx], |
| 25 | data); |
| 26 | @@ -316,10 +316,7 @@ u64 dpa_get_timestamp_ns(const struct dp |
| 27 | |
| 28 | be64_to_cpus(ts); |
| 29 | |
| 30 | - /* multiple DPA_PTP_NOMINAL_FREQ_PERIOD_NS for case of non power of 2 */ |
| 31 | - ns = *ts << DPA_PTP_NOMINAL_FREQ_PERIOD_SHIFT; |
| 32 | - |
| 33 | - return ns; |
| 34 | + return *ts; |
| 35 | } |
| 36 | |
| 37 | int dpa_get_ts(const struct dpa_priv_s *priv, enum port_type rx_tx, |