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关于am335x-evm-scale-data.bin

在内核的设备树文件中,有这样一段:

&wkup_m3_ipc {

ti, needs-vtt-toggle;

ti,vtt-gpio-pin = <7>;
ti,scale-data-fw = "am335x-evm-scale-data.bin";
};

请教几个问题:

1、wkup_m3_ipc是描述什么的?我在TRM中没有找到具体的说明

2、am335x-evm-scale-data.bin的内容是什么?主要起什么作用?

3、wkup_m3_ipc与am335x-evm-scale-data.bin有什么关联?

谢谢各位!