Re: [PATCH net-next 10/12] net: stmmac: tc956x: add TC956x/QPS615 support
From: Xilin Wu
Date: Tue May 05 2026 - 22:31:20 EST
On 5/1/2026 11:54 PM, Alex Elder wrote:
From: Daniel Thompson <daniel@xxxxxxxxxxxx>
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@xxxxxxxxxxxx>
Signed-off-by: Alex Elder <elder@xxxxxxxxxxxx>
Signed-off-by: Daniel Thompson <daniel@xxxxxxxxxxxx>
---
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@xxxxxxxxx>