Is it necessary for the reserved memory of remoteproc to be at start?

[waqar rashid]

Hello everyone,

I don't remember where I read this but it said that Xilinx baremetal applications or freertos applications uses the low memory regions (ddr start address 0x0010000) and that is why the reserved memory region for remoteproc that we define has to be in the start and due to that reason we also make sure that linux kernel doesn't take that place and we have to move it up in the memory region as shown below:

	make -C $< ARCH=arm CFLAGS=$(LINUX_CFLAGS) -j $(shell grep -c ^processor /proc/cpuinfo) UIMAGE_LOADADDR=0x10000000 uImage

Now the work I am doing, this is the only reason I can't use a pre compiled kernel because I have to change the kernels load address. Is there a way to reserve higher

memories for remoteproc and leave the kernel where it is by default.

Thanks.

Waqar Rashid

[Ed Mooring]

Hi,

If you look at the linker scripts in apps/system/generic/machine/zynq7/, you can see that the applications can start at much higher addresses. The default in the Cmake files sets it to 0x3e000000.

Regards,

Ed M

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