[PATCH 5.15 045/247] ARM: dts: aspeed: ast2600-evb: Enable RX delay for MAC0/MAC1

From: Howard Chiu howard_chiu@aspeedtech.com

[ Upstream commit 4d338ee40ba89e508c5d3e1b4af956af7cb5e12e ]

Since mac0/1 and mac2/3 are physically located on different die, they have different properties by nature, which is mac0/1 has smaller delay step.

The property 'phy-mode' on ast2600 mac0 and mac1 is recommended to set to 'rgmii-rxid' which enables the RX interface delay from the PHY chip. Refer page 45 of SDK User Guide v08.00 https://github.com/AspeedTech-BMC/openbmc/releases/download/v08.00/SDK_User_...

Fixes: 2ca5646b5c2f ("ARM: dts: aspeed: Add AST2600 and EVB") Signed-off-by: Howard Chiu howard_chiu@aspeedtech.com Link: https://lore.kernel.org/r/SG2PR06MB23152A548AAE81140B57DD69E6E09@SG2PR06MB23... Signed-off-by: Joel Stanley joel@jms.id.au Signed-off-by: Sasha Levin sashal@kernel.org --- arch/arm/boot/dts/aspeed-ast2600-evb.dts | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/aspeed-ast2600-evb.dts b/arch/arm/boot/dts/aspeed-ast2600-evb.dts index b7eb552640cb..788448cdd6b3 100644 --- a/arch/arm/boot/dts/aspeed-ast2600-evb.dts +++ b/arch/arm/boot/dts/aspeed-ast2600-evb.dts @@ -103,7 +103,7 @@ &mac0 { status = "okay";

- phy-mode = "rgmii"; + phy-mode = "rgmii-rxid"; phy-handle = <&ethphy0>;

pinctrl-names = "default"; @@ -114,7 +114,7 @@ &mac1 { status = "okay";

- phy-mode = "rgmii"; + phy-mode = "rgmii-rxid"; phy-handle = <&ethphy1>;

pinctrl-names = "default";