On Mon, 29 Jan 2024, Choong Yong Liang wrote: > From: "Tan, Tee Min" <tee.min.tan@xxxxxxxxxxxxxxx> > > Intel platform will configure the SerDes through PMC api based on the > provided interface mode. > > This patch adds several new functions below:- > - intel_tsn_interface_is_available(): This new function reads FIA lane > ownership registers and common lane registers through IPC commands > to know which lane the mGbE port is assigned to. > - intel_config_serdes(): To configure the SerDes based on the assigned > lane and latest interface mode, it sends IPC command to the PMC through > PMC driver/API. The PMC acts as a proxy for R/W on behalf of the driver. > - intel_set_reg_access(): Set the register access to the available TSN > interface. > > Signed-off-by: Tan, Tee Min <tee.min.tan@xxxxxxxxxxxxxxx> > Signed-off-by: Choong Yong Liang <yong.liang.choong@xxxxxxxxxxxxxxx> > --- > drivers/net/ethernet/stmicro/stmmac/Kconfig | 1 + > .../net/ethernet/stmicro/stmmac/dwmac-intel.c | 113 +++++++++++++++++- > .../net/ethernet/stmicro/stmmac/dwmac-intel.h | 75 ++++++++++++ > 3 files changed, 188 insertions(+), 1 deletion(-) > > diff --git a/drivers/net/ethernet/stmicro/stmmac/Kconfig b/drivers/net/ethernet/stmicro/stmmac/Kconfig > index 85dcda51df05..be423fb2b46c 100644 > --- a/drivers/net/ethernet/stmicro/stmmac/Kconfig > +++ b/drivers/net/ethernet/stmicro/stmmac/Kconfig > @@ -273,6 +273,7 @@ config DWMAC_INTEL > default X86 > depends on X86 && STMMAC_ETH && PCI > depends on COMMON_CLK > + select INTEL_PMC_IPC INTEL_PMC_IPC has depends on ACPI but selecting INTEL_PMC_IPC won't enforce it AFAIK. -- i.
