ARM: dts: aspeed: ast2600-evb: Enable RX delay for MAC0/MAC1
authorHoward Chiu <howard_chiu@aspeedtech.com>
Fri, 1 Apr 2022 06:59:06 +0000 (06:59 +0000)
committerJoel Stanley <joel@jms.id.au>
Thu, 19 May 2022 03:34:54 +0000 (13:04 +0930)
commit4d338ee40ba89e508c5d3e1b4af956af7cb5e12e
tree9ab2333338d2a21d605104f3f6d17f37894448d6
parent32e62d1beab70d485980013312e747a25c4e13f7
ARM: dts: aspeed: ast2600-evb: Enable RX delay for MAC0/MAC1

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>
arch/arm/boot/dts/aspeed-ast2600-evb.dts