[PATCH net-next 2/2] net: stmmac: select STMMAC_RELATIVE_FLEX_PPS for stm32 SoCs
Gatien Chevallier
gatien.chevallier at foss.st.com
Thu Jul 24 05:31:19 PDT 2025
In order to simplify the generation of flexible PPS signals by passing
an time offset relative to the MAC system time, select
STMMAC_RELATIVE_FLEX_PPS for DWMAC_STM32 config.
E.g: "echo "0 3 0 1 1" > /sys/class/ptp/ptp0/period" generates a PPS
that has a 1s period, 3 seconds after entering the command for ptp0 clock,
given that the MAC system time stays stable.
Signed-off-by: Gatien Chevallier <gatien.chevallier at foss.st.com>
---
drivers/net/ethernet/stmicro/stmmac/Kconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/net/ethernet/stmicro/stmmac/Kconfig b/drivers/net/ethernet/stmicro/stmmac/Kconfig
index 949c744d30f19f5ff480dca4811e678d2b93c450..98fae30ad5a2760ec6b9cebf3dcaf8e4d7d19b77 100644
--- a/drivers/net/ethernet/stmicro/stmmac/Kconfig
+++ b/drivers/net/ethernet/stmicro/stmmac/Kconfig
@@ -233,6 +233,7 @@ config DWMAC_STM32
default ARCH_STM32
depends on OF && HAS_IOMEM && (ARCH_STM32 || COMPILE_TEST)
select MFD_SYSCON
+ select STMMAC_RELATIVE_FLEX_PPS
help
Support for ethernet controller on STM32 SOCs.
--
2.25.1
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