Disable Spread Spectrum (SSC) on Xavier

Autonomous Machines Jetson & Embedded Systems Jetson AGX Xavier
1

Hi Guys,

We successfully disables spread spectrum on TX1 and TX2 SoMs.
How we can disable it on Xavier platform?

2

We will check and update.

3

Please apply below patch to tegra194-a02-bpmp-p2888-a04.dtb

clock@vic {
    allowed-parents = <0xcf 0xe>;
    clk-id = <0xa7>;
};

[b]+clock@plle {
+    clk-id = <0x64>;
+    pll_freq_table = <0x249f000 0x5f5e100 0x2 0x7d 0x18 0xffffffff 0xffffffff 0xffffffff 0xffffffff>;
+};[/b]

init {
    fuse = <0x28 0x0 0x0 0x20000>;
};

Here is guidance for conversion.

4

Thank you.

6
  1. where is tegra194-a02-bpmp-p2888-a04.dtb？
  2. how to open tegra194-a02-bpmp-p2888-a04.dtb
8

Hi,
You may download the image through SDKManager and check

nvidia/nvidia_sdk/JetPack_4.5_Linux_JETSON_AGX_XAVIER/Linux_for_Tegra/bootloader/t186ref/tegra194-a02-bpmp-p2888-a04.dtb

Please convert dtb to dts, apply the patch, and convert dts back to dtb.