Tool/software: TI C/C++ Compiler
Hi TI members:
For project request, we are studying how to enable PCIE internal clock output function.
There is some code about pcie0 in k3-j721e-main.dtsi
974 pcie0: pcie@2900000 { 975 compatible = "ti,j721e-pcie"; 976 reg = <0x00 0x02900000 0x00 0x1000>, 977 <0x00 0x02907000 0x00 0x400>, 978 <0x0 0x02905000 0x0 0x00000400>; 979 reg-names = "intd_cfg", "user_cfg", "vmap"; 980 #address-cells = <2>; 981 #size-cells = <2>; 982 ranges; 983 ti,syscon-pcie-ctrl = <&pcie0_ctrl>; 984 max-link-speed = <3>; 985 num-lanes = <2>; 986 power-domains = <&k3_pds 239 TI_SCI_PD_EXCLUSIVE>; 987 clocks = <&k3_clks 239 1>; 988 clock-names = "fck";
I am not sure is this "clocks = <&k3_clks 239 1>;" just mean below clock pin
So I have a few questions,
Q1: Is my understand about the clocks k3_clks right?
Q2: is there any document to explain what means of the number parameters(239 1) in clocks?
Q3: how to set PCIE_REFCLK1 is output?
if my description is not clean,
please let me know,
Thanks a lot!!!
BR
Sentinen Chen