Data in EWRAM

[TheRealFluBBa]

Trying to port some asm stuff to the GBA again and I'm having problems with including data/code in EWRAM.
Is that supposed to work and in that case how do I do it?

Just doing

.section .ewram
.incbin "somedata.bin"

The rom file size shows that the data should be included but it's all zeroed.

Instead doing

.section .sbss
.incbin "somedata.bin"

The size of the rom file doesn't reflect the data
No warnings or errors.

[WinterMute]

I've checked this with our stock GBA template & it works fine.