[U-Boot-Users] Rephrased Initrd and RAM

I will try to rephrase my last question (sorry for my pour communications skills)

In order for the Linux kernel to use the initrd, where it should be located, in RAM or in FLASH? The parameter given by u-boot to the kernel (e.g setenv bootargs initrd=0x120000,4M) is the address where initrd.img (the one compressed and mkimaged) is stored or u-boot is responsible for [decompressing the image and] copying it to RAM?

One other question :about the variable initrd_copy_to_ram , is it set only when initrd_high is defined in the bootargs? why?

Thank you,

Petre Pircalabu