diff options
| author | Howard Chiu <howard_chiu@aspeedtech.com> | 2022-04-01 06:59:06 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-06-14 18:41:17 +0200 |
| commit | 3208c7447154a3ca744eedfff596eb2926e2e952 (patch) | |
| tree | a72cf5aa7f0f9bf1642e725b8fcdf58413986488 | |
| parent | 9a54fb777ff3bf47889afca8a35d9fde05414ecc (diff) | |
ARM: dts: aspeed: ast2600-evb: Enable RX delay for MAC0/MAC1
[ 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_Guide_v08.00.pdf
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@SG2PR06MB2315.apcprd06.prod.outlook.com
Signed-off-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | arch/arm/boot/dts/aspeed-ast2600-evb.dts | 4 |
1 files 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 = <ðphy0>; pinctrl-names = "default"; @@ -114,7 +114,7 @@ &mac1 { status = "okay"; - phy-mode = "rgmii"; + phy-mode = "rgmii-rxid"; phy-handle = <ðphy1>; pinctrl-names = "default"; |