[RFC PATCH 0/0] Move the address of FW_JUMP_FDT_ADDR forward

[Nylon Chen]

From: "Nylon.Chen" <nylon.chen at sifive.com>

A while ago.
when we boot from QEMU by OpenSBI Jump mode with initramfs kerenl.

The kernel encountered panic because the kernel's section was
overwritten, and the address was FW_JUMP_FDT_ADDR.

we find out the the rule `$(FW_TEXT_START) + 0x2200000` in
platform/generic/config.mk

The situation is our kernel size big than it.

e.g. 
# readelf -h vmlinux 
init.bss's LMA is "0x00000000024a96a0", and when we use this rule, it
exceeds its size.

0x24a96a0 > 0x2200000

After our experiment, we can add offset FW_JUMP_FDT_ADDR, and the
problem is solved.

But in my opinion, this is not a good method because the next time the
kernel size increases, the same situation occurs again.

So maybe we can move the address forward and normalize the address to
FW_JUMP_FDT_ADDR?

Signed-off-by: Nylon Chen <nylon.chen at sifive.com>
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2.36.1