Have an addrmap's size be rounded to the next power of 2

[corco]

I wish for an addrmap to have it's size rounded to the next power of 2 when it comes to calculating the next component address. For example:

addrmap top {
    addrmap {
        reg {
            field {} test_field;
        } test_reg[375];
    } submap_0;

    addrmap  {
        reg {
            field {} test_field;
        } test_reg[100];
    } submap_1;
};

Here I have a 1500 bytes submap_0 and a 400 bytes submap_1 that are placed, respectively at 0 and 1536. I would rather have submap_1 at 2048, which is submap_0 size's next power of 2.

Is there a way to accomplish this automatically with SystemRDL?