From: Huacai Chen chenhuacai@loongson.cn
[ Upstream commit eb36e520f4f1b690fd776f15cbac452f82ff7bfa ]
The GMAC of Loongson chips cannot insert the correct 1.5-2ns delay. So we need the PHY to insert internal delays for both transmit and receive data lines from/to the PHY device. Fix this by changing the "phy-mode" from "rgmii" to "rgmii-id" in dts.
Signed-off-by: Huacai Chen chenhuacai@loongson.cn Signed-off-by: Sasha Levin sashal@kernel.org --- arch/loongarch/boot/dts/loongson-2k0500-ref.dts | 4 ++-- arch/loongarch/boot/dts/loongson-2k1000-ref.dts | 4 ++-- arch/loongarch/boot/dts/loongson-2k2000-ref.dts | 2 +- 3 files changed, 5 insertions(+), 5 deletions(-)
diff --git a/arch/loongarch/boot/dts/loongson-2k0500-ref.dts b/arch/loongarch/boot/dts/loongson-2k0500-ref.dts index 8aefb0c126722..a34734a6c3ce8 100644 --- a/arch/loongarch/boot/dts/loongson-2k0500-ref.dts +++ b/arch/loongarch/boot/dts/loongson-2k0500-ref.dts @@ -44,14 +44,14 @@ linux,cma { &gmac0 { status = "okay";
- phy-mode = "rgmii"; + phy-mode = "rgmii-id"; bus_id = <0x0>; };
&gmac1 { status = "okay";
- phy-mode = "rgmii"; + phy-mode = "rgmii-id"; bus_id = <0x1>; };
diff --git a/arch/loongarch/boot/dts/loongson-2k1000-ref.dts b/arch/loongarch/boot/dts/loongson-2k1000-ref.dts index ed4d324340411..aaf41b565805a 100644 --- a/arch/loongarch/boot/dts/loongson-2k1000-ref.dts +++ b/arch/loongarch/boot/dts/loongson-2k1000-ref.dts @@ -43,7 +43,7 @@ linux,cma { &gmac0 { status = "okay";
- phy-mode = "rgmii"; + phy-mode = "rgmii-id"; phy-handle = <&phy0>; mdio { compatible = "snps,dwmac-mdio"; @@ -58,7 +58,7 @@ phy0: ethernet-phy@0 { &gmac1 { status = "okay";
- phy-mode = "rgmii"; + phy-mode = "rgmii-id"; phy-handle = <&phy1>; mdio { compatible = "snps,dwmac-mdio"; diff --git a/arch/loongarch/boot/dts/loongson-2k2000-ref.dts b/arch/loongarch/boot/dts/loongson-2k2000-ref.dts index 74b99bd234cc3..ea9e6985d0e9f 100644 --- a/arch/loongarch/boot/dts/loongson-2k2000-ref.dts +++ b/arch/loongarch/boot/dts/loongson-2k2000-ref.dts @@ -92,7 +92,7 @@ phy1: ethernet-phy@1 { &gmac2 { status = "okay";
- phy-mode = "rgmii"; + phy-mode = "rgmii-id"; phy-handle = <&phy2>; mdio { compatible = "snps,dwmac-mdio";