[PATCH net-next v2 0/2] Add support for Renesas RZ/G3L GBETH

[PATCH net-next v2 0/2] Add support for Renesas RZ/G3L GBETH

[Biju]

From: Biju Das <biju.das.jz@bp.renesas.com>

The Renesas RZ/G3L GBETH IP uses Synopsys DesignWare MAC version 5.30
compared to other Renesas SoC such as RZ/V2H that use MAC version 5.20.

The RZ/G3L GBETH requires an extra clock compared to RZ/G3E and has pps
interrupts. Document the Renesas RZ/G3L GBETH IP in bindings and enable
the Gigabit Ethernet Interface (GBETH0) populated on the RZ/G3L SMARC
EVK. The eth1, pincontrol definitions and hotplug support will be added
later.

v1->v2:
 * Separated ethernet patches from series [1]
 * Collected tag for binding patch

[1] https://lore.kernel.org/all/20260128125850.425264-1-biju.das.jz@bp.renesas.com/

Biju Das (2):
  dt-bindings: net: renesas,rzv2h-gbeth: Document Renesas RZ/G3L SoC
  net: stmmac: dwmac-renesas-gbeth: Add support for RZ/G3L SoC

 .../bindings/net/renesas,rzv2h-gbeth.yaml     | 77 ++++++++++++++++---
 .../devicetree/bindings/net/snps,dwmac.yaml   |  3 +
 .../stmicro/stmmac/dwmac-renesas-gbeth.c      |  1 +
 3 files changed, 70 insertions(+), 11 deletions(-)

-- 
2.43.0

[PATCH net-next v2 2/2] net: stmmac: dwmac-renesas-gbeth: Add support for RZ/G3L SoC

[Biju]

From: Biju Das <biju.das.jz@bp.renesas.com>

Compared to other Renesas GBETH stmmac glue drivers, RZ/G3L GBETH IP use
the version Synopsys DesignWare MAC (version 5.30). It has an extra clock
compared to RZ/V2H and has ptp_pps_o interrupts. Add support for RZ/G3L
GBETH by reusing device data of RZ/V2H and can be extended to add other
functionalities later.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
---
v1->v2:
 * No change.
---
 drivers/net/ethernet/stmicro/stmmac/dwmac-renesas-gbeth.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-renesas-gbeth.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-renesas-gbeth.c
index be7f5eb2cdcf..19f34e18bfef 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-renesas-gbeth.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-renesas-gbeth.c
@@ -214,6 +214,7 @@ static const struct renesas_gbeth_of_data renesas_gmac_of_data = {
 };
 
 static const struct of_device_id renesas_gbeth_match[] = {
+	{ .compatible = "renesas,r9a08g046-gbeth", .data = &renesas_gbeth_of_data },
 	{ .compatible = "renesas,r9a09g077-gbeth", .data = &renesas_gmac_of_data },
 	{ .compatible = "renesas,rzv2h-gbeth", .data = &renesas_gbeth_of_data },
 	{ /* Sentinel */ }
-- 
2.43.0

Re: [PATCH net-next v2 2/2] net: stmmac: dwmac-renesas-gbeth: Add support for RZ/G3L SoC

[Russell King (Oracle)]

On Fri, Jan 30, 2026 at 11:47:40AM +0000, Biju wrote:
> From: Biju Das <biju.das.jz@bp.renesas.com>
> 
> Compared to other Renesas GBETH stmmac glue drivers, RZ/G3L GBETH IP use
> the version Synopsys DesignWare MAC (version 5.30). It has an extra clock
> compared to RZ/V2H and has ptp_pps_o interrupts. Add support for RZ/G3L
> GBETH by reusing device data of RZ/V2H and can be extended to add other
> functionalities later.
> 
> Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>

This seems to be patch 2 of 2, but there's no sign of patch 1 nor the
cover message. I'm guessing patch 1 was updating the DT binding
docuentation.

For this patch:

Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>

Thanks!

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
FTTP is here! 80Mbps down 10Mbps up. Decent connectivity at last!

RE: [PATCH net-next v2 2/2] net: stmmac: dwmac-renesas-gbeth: Add support for RZ/G3L SoC

[Biju Das]

Hi Russell King,

Thanks for the feedback.

> -----Original Message-----
> From: Russell King <linux@armlinux.org.uk>
> Sent: 30 January 2026 12:42
> Subject: Re: [PATCH net-next v2 2/2] net: stmmac: dwmac-renesas-gbeth: Add support for RZ/G3L SoC
> 
> On Fri, Jan 30, 2026 at 11:47:40AM +0000, Biju wrote:
> > From: Biju Das <biju.das.jz@bp.renesas.com>
> >
> > Compared to other Renesas GBETH stmmac glue drivers, RZ/G3L GBETH IP
> > use the version Synopsys DesignWare MAC (version 5.30). It has an
> > extra clock compared to RZ/V2H and has ptp_pps_o interrupts. Add
> > support for RZ/G3L GBETH by reusing device data of RZ/V2H and can be
> > extended to add other functionalities later.
> >
> > Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
> 
> This seems to be patch 2 of 2, but there's no sign of patch 1 nor the cover message. I'm guessing
> patch 1 was updating the DT binding docuentation.

I am seeing delay in delivering patch from gmail SMTP server since yesterday. Now patch [1] is reached
in lore.org. Sorry for that

[1]
https://lore.kernel.org/all/20260130114744.252533-2-biju.das.jz@bp.renesas.com/

Cheers,
Biju

> 
> For this patch:
> 
> Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
> 
> Thanks!
> 
> --
> RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
> FTTP is here! 80Mbps down 10Mbps up. Decent connectivity at last!