diff options
Diffstat (limited to 'drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.h')
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.h | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.h b/drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.h index ecccf895fd7e..e852821289cf 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.h +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.h @@ -59,9 +59,14 @@ #define PTP_TCR_TSEVNTENA BIT(14) /* Enable Snapshot for Messages Relevant to Master */ #define PTP_TCR_TSMSTRENA BIT(15) -/* Select PTP packets for Taking Snapshots */ +/* Select PTP packets for Taking Snapshots + * On gmac4 specifically: + * Enable SYNC, Pdelay_Req, Pdelay_Resp when TSEVNTENA is enabled. + * or + * Enable SYNC, Follow_Up, Delay_Req, Delay_Resp, Pdelay_Req, Pdelay_Resp, + * Pdelay_Resp_Follow_Up if TSEVNTENA is disabled + */ #define PTP_TCR_SNAPTYPSEL_1 BIT(16) -#define PTP_GMAC4_TCR_SNAPTYPSEL_1 GENMASK(17, 16) /* Enable MAC address for PTP Frame Filtering */ #define PTP_TCR_TSENMACADDR BIT(18) |