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| author |   Tan Tee Min <tee.min.tan@intel.com> | 2021-03-23 19:07:34 +0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2021-03-24 15:12:36 -0700 |
| commit | 341f67e424e572bfc034daa534c6fa667533e6a4 (patch) | |
| tree | 9eb068488d74e90163afebaad00ff84946dbfd18 /drivers/net/ethernet/stmicro/stmmac/hwif.h | |
| parent | sfc-falcon: Fix a typo (diff) | |
| download | linux-dev-341f67e424e572bfc034daa534c6fa667533e6a4.tar.xz linux-dev-341f67e424e572bfc034daa534c6fa667533e6a4.zip | |
net: stmmac: Add hardware supported cross-timestamp
Cross timestamping is supported on Integrated Ethernet Controller in
Intel SoC such as EHL and TGL with Always Running Timer.
The hardware cross-timestamp result is made available to
applications through the PTP_SYS_OFFSET_PRECISE ioctl which calls
stmmac_getcrosststamp().
Device time is stored in the MAC Auxiliary register. The 64-bit System
time (ART timestamp) is stored in registers that are only addressable
by using MDIO space.
Signed-off-by: Tan Tee Min <tee.min.tan@intel.com>
Co-developed-by: Wong Vee Khee <vee.khee.wong@linux.intel.com>
Signed-off-by: Wong Vee Khee <vee.khee.wong@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/stmicro/stmmac/hwif.h')
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/hwif.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/hwif.h b/drivers/net/ethernet/stmicro/stmmac/hwif.h index 692541c7b419..59bf7078a754 100644 --- a/drivers/net/ethernet/stmicro/stmmac/hwif.h +++ b/drivers/net/ethernet/stmicro/stmmac/hwif.h @@ -508,6 +508,7 @@ struct stmmac_hwtimestamp { int (*adjust_systime) (void __iomem *ioaddr, u32 sec, u32 nsec, int add_sub, int gmac4); void (*get_systime) (void __iomem *ioaddr, u64 *systime); + void (*get_ptptime)(void __iomem *ioaddr, u64 *ptp_time); }; #define stmmac_config_hw_tstamping(__priv, __args...) \ @@ -522,6 +523,8 @@ struct stmmac_hwtimestamp { stmmac_do_callback(__priv, ptp, adjust_systime, __args) #define stmmac_get_systime(__priv, __args...) \ stmmac_do_void_callback(__priv, ptp, get_systime, __args) +#define stmmac_get_ptptime(__priv, __args...) \ + stmmac_do_void_callback(__priv, ptp, get_ptptime, __args) /* Helpers to manage the descriptors for chain and ring modes */ struct stmmac_mode_ops { |