[Linux-stm32] [PATCH net-next 10/12] net: stmmac: tc956x: add TC956x/QPS615 support

[Xilin Wu]

On 5/1/2026 11:54 PM, Alex Elder wrote:
> From: Daniel Thompson <daniel at riscstar.com>
> 
> Toshiba TC956x is an Ethernet AVB/TSN bridge and is essentially a
> small and highly-specialized SoC. TC956x includes an "eMAC" subsystem
> that can be accessed, along with several other peripherals, via two
> PCIe endpoint functions. There is a main driver for the endpoint that
> decomposes things and creates auxiliary bus devices to model the SoC.
> 
> The eMAC consists of a Designware XGMAC, XPCS and PMA. Each eMAC is
> supported by an MSIGEN that bridges TC956x level interrupts to PCIe
> MSIs.
> 
> Add a driver for the eMAC/MSIGEN combination.
> 
> Co-developed-by: Alex Elder <elder at riscstar.com>
> Signed-off-by: Alex Elder <elder at riscstar.com>
> Signed-off-by: Daniel Thompson <daniel at riscstar.com>
> ---
>   drivers/net/ethernet/stmicro/stmmac/Kconfig   |  13 +
>   drivers/net/ethernet/stmicro/stmmac/Makefile  |   2 +
>   .../ethernet/stmicro/stmmac/dwmac-tc956x.c    | 791 ++++++++++++++++++
>   include/soc/toshiba/tc956x-dwmac.h            |  84 ++
>   4 files changed, 890 insertions(+)
>   create mode 100644 drivers/net/ethernet/stmicro/stmmac/dwmac-tc956x.c
>   create mode 100644 include/soc/toshiba/tc956x-dwmac.h
> 
> diff --git a/drivers/net/ethernet/stmicro/stmmac/Kconfig b/drivers/net/ethernet/stmicro/stmmac/Kconfig
> index e3dd5adda5aca..66bcfaccbe21f 100644
> --- a/drivers/net/ethernet/stmicro/stmmac/Kconfig
> +++ b/drivers/net/ethernet/stmicro/stmmac/Kconfig
> @@ -404,6 +404,19 @@ config DWMAC_MOTORCOMM
>   	  This enables glue driver for Motorcomm DWMAC-based PCI Ethernet
>   	  controllers. Currently only YT6801 is supported.
>   
> +config DWMAC_TC956X
> +	tristate "Toshiba TC956X DWMAC support"
> +	depends on PCI
> +	depends on COMMON_CLK
> +	depends on TOSHIBA_TC956X_PCI
> +	default m if TOSHIBA_TC956X_PCI

Hi Alex,

I think GENERIC_IRQ_CHIP should be selected here.

Thank you for the driver.

-- 
Best regards,
Xilin Wu <sophon at radxa.com>