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resources:tools-software:linuxdsp:docs:linux_yocto_distribution_and_applications:linuxptp [17 Sep 2020 16:27]
Matt Prewett ↷ Page moved from resources:tools-software:linuxdsp:docs:linux_yocto_distrubution_and_applications:linuxptp to resources:tools-software:linuxdsp:docs:linux_yocto_distribution_and_applications:linuxptp
resources:tools-software:linuxdsp:docs:linux_yocto_distribution_and_applications:linuxptp [22 Sep 2020 11:14]
Sunny Feng [Device tree configuration]
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 ==== Device tree configuration ==== ==== Device tree configuration ====
-The timestamps that are the basis of PTP can be acquired with greater accuracy when they are captured by the ethernet PHY hardware. The RMII PHY interface ​supports ​hardware timestamps ​but the RGMII PHY interface does not. In order to obtain a higher accuracy of time synchronization the RMII PHY is the better choice, even though this means being limited to 10/100 Mbps operation+The timestamps that are the basis of PTP can be acquired with greater accuracy when they are captured by the ethernet PHY hardware. The PHY interface ​can support ​hardware timestampsthe default phy-mode is RGMII. 
-The phy-mode can be changed to "​rmii"​ in the device tree header in the linux kernel source arch/​arm/​boot/​dts/​sc589-ezkit.dts other board specific sc5xx.dts files. Run "//​**bitbake linux-adi -c devshell**//"​ to enter into linux kernel source code.+ 
 +The phy-mode ​also can be changed to "​rmii"​ in the device tree header in the linux kernel source arch/​arm/​boot/​dts/​sc589-ezkit.dts ​and other board specific sc5xx.dts files. ​
 <WRAP info> <WRAP info>
 ... : ellipsis, means other properties in EMAC0 node stay the same\\ ... : ellipsis, means other properties in EMAC0 node stay the same\\
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 ---- ----
-**Back to** [[resources/tools-software/linuxdsp/docs/​linux_yocto_distrubution_and_applications/​start|Yocto Linux Distrubution and Applications]]+**Back to** [[resources:tools-software:linuxdsp:docs:​linux_yocto_distribution_and_applications:​start|Yocto Linux Distrubution and Applications]]
resources/tools-software/linuxdsp/docs/linux_yocto_distribution_and_applications/linuxptp.txt · Last modified: 22 Sep 2020 11:14 by Sunny Feng