netdev - [PATCH net-next 19/21] net: stmmac: rk: rk3528: gmac0 only supports RMII

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-Id: <E1vjEvK-00000005ghP-3lCt@rmk-PC.armlinux.org.uk>
Date: Fri, 23 Jan 2026 11:01:54 +0000
From: "Russell King (Oracle)" <rmk+kernel@...linux.org.uk>
To: Andrew Lunn <andrew@...n.ch>
Cc: Alexandre Torgue <alexandre.torgue@...s.st.com>,
	Andrew Lunn <andrew+netdev@...n.ch>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Heiko Stuebner <heiko@...ech.de>,
	Jakub Kicinski <kuba@...nel.org>,
	linux-arm-kernel@...ts.infradead.org,
	linux-rockchip@...ts.infradead.org,
	linux-stm32@...md-mailman.stormreply.com,
	netdev@...r.kernel.org,
	Paolo Abeni <pabeni@...hat.com>
Subject: [PATCH net-next 19/21] net: stmmac: rk: rk3528: gmac0 only supports
 RMII

RK3528 gmac0 dtsi contains:

                gmac0: ethernet@...d0000 {
                        phy-handle = <&rmii0_phy>;
                        phy-mode = "rmii";

                        mdio0: mdio {
                                rmii0_phy: ethernet-phy@2 {
                                        phy-is-integrated;
                                };
                        };
                };

This follows the same pattern as rk3328, where this gmac instance
only supports RMII. Disable RGMII in phylink's supported_interfaces
mask for this gmac instance.

Signed-off-by: Russell King (Oracle) <rmk+kernel@...linux.org.uk>
---
 drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
index 109ed62fb04c..d99e77211b95 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
@@ -715,6 +715,7 @@ static int rk3528_init(struct rk_priv_data *bsp_priv)
 	case 0:
 		bsp_priv->clock_grf_reg = RK3528_VO_GRF_GMAC_CON;
 		bsp_priv->clock.rmii_clk_sel_mask = BIT_U16(3);
+		bsp_priv->supports_rgmii = false;
 		return 0;
 
 	case 1:
-- 
2.47.3