Tool/software:
Hi
In our product we are using AM6442 processor and we want to decrease A53 CPU frequency? How to do that?
In k3-am642-r5-evm.dts form u-boot repository I found node and tried to change the assigned-clock-rates property but CPU frequency still stays the same.
a53_0: a53@0 {
compatible = "ti,am654-rproc";
reg = <0x00 0x00a90000 0x00 0x10>;
power-domains = <&k3_pds 61 TI_SCI_PD_EXCLUSIVE>,
<&k3_pds 135 TI_SCI_PD_EXCLUSIVE>;
resets = <&k3_reset 135 0>;
clocks = <&k3_clks 61 0>;
assigned-clocks = <&k3_clks 61 0>, <&k3_clks 135 0>;
assigned-clock-parents = <&k3_clks 61 2>;
assigned-clock-rates = <200000000>, <1000000000>;
ti,sci = <&dmsc>;
ti,sci-proc-id = <32>;
ti,sci-host-id = <10>;
u-boot,dm-spl;
};
BR
Jakub
