diff options
| author | Roger Quadros <rogerq@ti.com> | 2023-08-24 17:16:17 +0530 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2023-08-27 07:13:23 +0100 |
| commit | 186734c158865747f7160b461afcabfaab8f9bca (patch) | |
| tree | 28dc2b47216609615fbc55b56d8de4bfc676e6ef /drivers/net/ethernet/ti/Kconfig | |
| parent | c1e0230eeaab26984f6e5c5575486e96a63e2e48 (diff) | |
net: ti: icssg-prueth: add packet timestamping and ptp support
Add packet timestamping TS and PTP PHC clock support.
For AM65x and AM64x:
- IEP1 is not used
- IEP0 is configured in shadow mode with 1ms cycle and shared between
Linux and FW. It provides time and TS in number cycles, so special
conversation in ns is required.
- IEP0 shared between PRUeth ports.
- IEP0 supports PPS, periodic output.
- IEP0 settime() and enabling PPS required FW interraction.
- RX TS provided with each packet in CPPI5 descriptor.
- TX TS returned through separate ICSSG hw queues for each port. TX TS
readiness is signaled by INTC IRQ. Only one packet at time can be requested
for TX TS.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Co-developed-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: MD Danish Anwar <danishanwar@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/ti/Kconfig')
| -rw-r--r-- | drivers/net/ethernet/ti/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/ethernet/ti/Kconfig b/drivers/net/ethernet/ti/Kconfig index 1af5a90720ec..88b5b1b47779 100644 --- a/drivers/net/ethernet/ti/Kconfig +++ b/drivers/net/ethernet/ti/Kconfig @@ -186,6 +186,7 @@ config CPMAC config TI_ICSSG_PRUETH tristate "TI Gigabit PRU Ethernet driver" select PHYLIB + select TI_ICSS_IEP depends on PRU_REMOTEPROC depends on ARCH_K3 && OF && TI_K3_UDMA_GLUE_LAYER help |